215results about How to "Safe recycling" patented technology

The invention provides a statistical damage constitutive model of rock. The Mohr-Coulomb criterion is adopted as rock micro-element strength, and the conventional distribution form, namely logarithmic normal distribution, in the field of engineering reliability is adopted as the distribution state of micro-element strength. The mature Mohr-Coulomb criterion with wide application is utilized as the failure criterion of micro-element strength, while the function relationship between the damage parameters A, B, C and H of the constitutive model and the pressure sigma 3 of surrounding rock is given, so that the constitutive model can directly adopt numerical calculation software in the calculation of geotechnical engineering, and the effect is verified in the actual engineering application.

The invention relates to a method for recovering an activated carbon supported ruthenium catalyst, which comprises the steps of: performing high-temperature roasting on an activated carbon supported ruthenium catalyst in which an alkali metal or alkaline-earth metal compound additive is not contained or is removed; performing high-temperature alkaline fusion on a roasted product; dissolving an alkaline fusion product in hot water with a temperature of between 60 and 95 DEG C to obtain a K2RuO4 or Na2RuO4 solution, adding ethanol or an alkaline solution into the K2RuO4 or Na2RuO4 solution to obtain a Ru(OH)4 precipitate; and drying the precipitate, or dissolving the precipitate by using strong acid, or using H2 to reduce the precipitate to obtain different ruthenium products. The method hasthe advantages that precious metal ruthenium can be efficiently recovered, the operation process of the recovery is safe, alkali metal and alkaline-earth metal additives can be synchronously recovered, and the form of the recovered product can be selected. The method has reliable technology, simple operation, low cost and no pollution.

An encasing film for a galvanic element has at least one force sensor for detecting an expansion state of the encasing film. The encasing film is produced from an elastic and electrically insulating material, e.g., plastic. The force sensor, which has a strain gauge, is situated on a surface of the encasing film.

The invention discloses a method for recovering an electrolyte in a waste lithium ion battery. The method comprises the steps that the single cell of the waste lithium ion battery after discharging isdisassembled; thermal cracking treatment is carried out at 300 to 500 DEG C, wherein the pyrolysis time is 0.5 to 1.5h; the solid material after thermal cracking is pulverized, sorted and recovered to acquire an electrode material, iron, aluminum and copper powder; the thermally cracked gas is first dedusted and then condensed to recover the condensed electrolyte; and the condensed gas is discharged after being leached with an alkaline solution. According to the method provided by the invention, the electrolyte is recovered, and the fluorine content of the discharged gas is reduced to below the emission standard to meet the requirement of environmental protection treatment.

The invention provides a flare gas safe recovery and discharge system, which comprises a flare gas delivery flask (2), an automatic control water-sealed valve (3), a gas holder (6) and a flare tip (13) and is characterized in that the gas inlet end of the flare gas delivery flask (2) is connected with a flare gas source by a flare gas main pipe (1); one path of the output end of the flare gas delivery flask (2) is connected with a gas torch (6), and the other path thereof is connected with the flare tip (13) via the automatic control water-sealed valve (3); an automatic control valve (4) and aflare gas filtering tank (5) are mounted on the pipeline connecting the flare gas delivery flask (2) with the gas torch (6); the output end of the gas torch (6) is connected with a compressor (7); and the output end of the compressor (7) is connected with a gas appliance (8). The invention has the advantages of simple system structure, convenient manufacturing and installation and safe usage; andthe invention also has the characteristics of being favor of preventing environment, saving energy and the like.

The invention discloses a planning method for recovering an autonomous underwater vehicle (AUV) through a guide cable of a surface unmanned ship. The recovery logical flow comprises the following steps: firstly, starting a recovery process after the AUV ends a task; secondly, judging whether data are abnormal or not; thirdly, judging the state of the AUV, if the state of the AUV is abnormal, performing state exception processing, otherwise issuing an instruction, and executing a next step action; and finally, take whether the recovery is successful as a criterion for judging the end of a logical flow. The invention has the beneficial effects that a planning method of coordinated docking recovery between the autonomous underwater vehicle and the surface unmanned ship is proposed specific tothe operation process of autonomous recovery of the underwater vehicle by the surface unmanned ship. The planning method includes the control strategies of start / stop of a recovery task, coordinatedcontrol of docking and re-planning after docking failure; the effectiveness of the whole recovery process is ensured through whole process planning adjustment; and the success rate of autonomous recovery of the underwater vehicle by the surface unmanned ship is greatly improved.

The invention discloses a device for launching and recovering a boat on a mother ship. An opening and a launching and recovering door are arranged on the rear side of a cabin. The launching and recovering door comprises a door plate seat driven by a lifting device to ascend and descend and a door plate hinged on the door plate seat, and the door plate is driven by an opening and closing device to be opened and closed. A rail leading to the opening is arranged in the cabin, a trolley for carrying the boat and moving on the rail is arranged on the rail, and a bracket capable of docking with the rail when the door plate is opened is arranged on the door plate. The door plate is opened to enable the bracket to be docked with the rail, the boat is pushed onto the door plate, the door plate is driven by the lifting device to descend below the water level, and accordingly the boat is launched. When the boat is recovered, the door plate and the bracket are driven to descend below the water level, the boat runs to above the bracket, then the door plate is lifted to enable the bracket to support the boat, the door plate is lifted continuously to enable the bracket to be docked with the rail, and the boat is pulled into the cabin. By the device, launching and recovery of the boat on the mother ship is achieved quite conveniently, and the whole boat launching and recovery process is stable and safe.

The invention discloses a unidirectional flap. The unidirectional flap comprises a framework and an isolation membrane, wherein the framework comprises a far end, a near end and at least three vertical beams which are arranged between the near end and the far end; membrane-coating loca are arranged on the surfaces of the vertical beams; convex points are arranged on the membrane-coating loca and used for increasing friction force between the unidirectional flap and a bronchial tube; at least one isolation membrane penetrates through the membrane-coating loca to be covered on the surface of the far end; a mesh is arranged at the far end; and the near end is a closed structure which is composed of 2-3 sealed, mutually-separated and flap-shaped structures. According to the unidirectional flap, due to the adoption of the closed framework structure, support force and stability of the framework are improved; and quoin points, contacted with the inner wall of the bronchial tube, of the framework are reduced; damage rate of the inner wall of the bronchial tube caused due to machines is reduced; and occurrence probability of bronchitis is reduced.

A hands-free firearm stabilizer device comprising a means for securing a firearm to perpendicularly to the shoulder of a hunter. The fully adjustable device can be adjusted to accommodate any gunstock and hunter, allowing the hunter to wait for game in a relaxed hands-free position or utilize game calls without sacrificing firearm stability. Additionally, hunters can position themselves in a seated position allowing fine aiming adjustments using his / her knee preventing unwanted noise and movement that could be detected by the game and providing a viable option for hunters with disabilities that may limit their ability participate in the sport of hunting.

The invention provides a modular electronic device, in particular a portable device, more in particular a handheld device, said modular electronic device comprising a chassis comprising a frame holding a computational module comprising a circuit board holding a data processor, and a display module comprising a planar display device having a viewing side and a rear side, said display module comprising a back plate on the rear side of the display device, wherein said frame further comprises a frame attachment part and said back plate comprises a display attachment part for allowing said display module to be attached to said frame in a sliding manner in a sliding direction in-plane of said planar display device, and said frame comprising a frame lock part and said display module comprising a display lock part for in a mutually locked position locking said frame and said display module onto one another, blocking said sliding, and in a mutually released position allowing sliding of said display module and said frame with respect to one another for allowing removal of said display module from said frame.

The invention provides a UUV underwater recycling control system and control method based on a self-adaptation algorithm. The system comprises a water surface monitoring computer, a mission management computer, a dynamic control computer, a visual sensor, a short base line positioning sonar, a posture sensor, a Doppler speed testing instrument, a main propeller and a channel auxiliary propeller. Communication is carried out among the water surface monitoring computer, the mission management computer and the dynamic control computer through a network, a UUV self-adaptation recycling control system is embedded in the mission management computer, and the visual sensor, the short base line positioning sonar, the posture sensor and the Doppler speed testing instrument communicate through serial ports and send collected information to the dynamic control computer. The dynamic control computer controls the main propeller and the channel auxiliary propeller through electric signals. According to the system and method, a UUV can be safely and accurately recycled to a carrying platform of an underwater work station.

The invention discloses a bending-adjustable conveying system for an interventional cardiac valve. The system comprises an outer sheath tube, an core tube assembly which is arranged in the outer sheath tube and can relatively slide in the axial direction and an operation handle connected with the proximal ends of the outer sheath tube and the core tube assembly; a tube body of the outer sheath tube is provided with a distal end and the proximal end, the handle is connected with a traction wire for pulling the distal end of the tube body to bend, a distal end of the traction wire is connected with the tube body, the connection part is located at the distal end of the tube body or is adjacent to the distal end of the tube body, and at least one section of the traction wire is a free sectionwhich is free outside the tube body; the system is further provided with floating limit strips, proximal ends of the floating limit strips are starting ends fixedly arranged opposite to a fixing heador the core tube assembly, and the floating limit strips float between a mounting portion of the interventional cardiac valve and the outer sheath tube; the outer wall of the fixing head is provided with a positioning part used for being matched with a connecting lug of the interventional cardiac valve, the connecting lug is completely released in front of the outer sheath tube, and the floating limit strips are bound by the outer sheath tube to keep the cooperation between the connecting lug and the positioning portion.

The invention relates to an on-bottom and off-bottom supporting device for a manned submersible. The on-bottom and off-bottom supporting device for the manned submersible comprises an on-bottom and off-bottom supporting body which is connected with a pressure-resisting shell of the manned submersible through a body lifting cylinder. A body extension cylinder is installed between the pressure-resisting shell and the body lifting cylinder. The body extension cylinder extends or retracts to make the body lifting cylinder and the on-bottom and off-bottom supporting body to move away from or move close to the manned submersible. The on-bottom and off-bottom supporting body comprises a plurality of supporting rods installed between a lower base and an upper base. Supporting legs are hinged to the supporting rods through sliding blocks capable of sliding up and down. Supporting leg support plates are installed at the lower ends of the supporting legs, and the supporting legs are connected with the lower base through connecting rods. A supporting leg extension cylinder for driving the sliding blocks to slide up and down is installed between the upper base and the lower base. The supportingrods are of a hollow structure, water outlet holes are formed in the side walls of the supporting rods, and water inlets in the upper ends are connected with a water outlet of a deep water pump. Theon-bottom and off-bottom supporting device for the manned submersible is simple in structure, reliable in operation and convenient to install.

A method and system for providing an efficient and concurrent garbage collection and mutator execution in a computer system includes identifying an object required by an application running on a mutator during a garbage collection cycle. The identified object is pre-marked by a garbage collector as a non-recyclable object during a pre-marking phase. One or more barriers to be executed by the mutator are then activated. The barriers enable the garbage collector to complete the garbage collection cycle by marking objects essential to the mutator so that unmarked objects may be recycled. The garbage collector is executed concurrently with the mutator so that the garbage collector can dynamically compute a set of recyclable objects in memory at the end of a garbage collection cycle.

The invention provide a technique for the treatment of harmful substances by which the inhibition of soil or ash containing lead, cadmium, mercury, hexavalent chromium, selenium and / or arsenic in a high concentration from dissolving and the decomposition of organochlorine compounds such as trichloro- ethylene, polychlorinated dibenzo-p-dioxins and PCB into harmless substances can be attained economically and effectively. The invention relates to an encapsulating agent which contains sulphide iron ore and an activator and which may further contain soft-burned magnesia, cement, quicklime, slakedlime, magnesium carbonate, limestone, dolomite and / or alkali silicates. The encapsulating agent makes it possible to conduct reliably and economically the inhibition of lead, cadmium, mercury, hexavalent chromium, selenium and / or arsenic contained in soil or ash from dissolving and the decomposition of organochlorine compounds such as trichloroethylene, polychlorinated dibenzo -p-dioxins and PBCinto harmless substances. The encapsulating agent is also favorably usable as an encapsulating agent or blowing agent for incineration ash containing lead, hexavalent chromium, or the like in a high concentration. The soil or incineration ash encapsulated with the agent is in a harmless and firmly hardened state and therefore permits safe recycling.

The invention relates to a filling stope pillar recovery mining method. Because drilling is carried out below an inclined plane of a safer ore-breaking upper layer, recovery of inbreak of obturation lagging behind part of ore body is ensured, the obturation is avoided to be mixed into ore body heap, the ore recovery rate is improved and the dilution and the loss of the ore are reduced. Meanwhile, because the construction of other development engineering is not carried out, the ore removal efficiency and the stripping ratio are far higher than those of other pillar recovery methods. Finally, the obturation inbreak naturally piles up and extrudes the stope inclined plane to form an active pressure so as to play a role of a certain support on the stope top plate and provide a subsequent drilling operation platform for effectively and safely recovering pillars. The obturation gravity is converted into the support force of the stope top plate so as to reduce the instability of the pillar recovery process and ensure the safety of the equipment and the personnel in the subsequent works of drilling, ore removal and the like. The invention is suitable for stope recovery of a filling mining method, wherein the rock mass is firm, the protodyakonov scale of hardness is 7-12, and the pillar thickness is 5-9 m.

The invention relates to a replacement method of a multi-split wire in an ultrahigh-voltage power transmission line, in particular to a replacement method of a long-distance multi-split wire. A four-split waste wire and a traction rope of a new wire are directly connected by a specially-designed four-in-one pay-off plate, two large-size dual-wheel tension machines are used as traction equipment to reversely pull the waste wire, a large-size tension machine is used as tension equipment to brake the traction rope, so that one-time recycling of the long-distance four-split waste wire and synchronous forwarding of the traction rope of the new wire are achieved, and the four-split new wire is synchronously unfolded by a one-in-four mode. By the replacement method, labor and tool input are greatly reduced, the labor intensity is reduced, the construction period is shortened, and the replacement efficiency of the long-distance four-split wire is substantially improved.

The invention discloses a three-dimensional roof controlling method for fully mechanized caving of a steeply inclined and extremely thick coal seam. The steeply inclined and extremely thick coal seam is mined in multiple sections from back to front along the trend of the coal same, each of the mining sections is cut into multiple sub-layers from top to bottom, and the uppermost sub-layer is a top sub-layer; when any mining section is mined, the multiple sub-layers of the mining section are respectively minted from top to bottom, and the process comprises the following steps: I, mining the top sub-layer: comprising the steps of tunnel construction, extraction of toxic and harmful gas in a pre-denotation roadway, advanced pre-blasting of top coal, drainage to wet the top coal, coal mining and nitrogen injection behind a working face and ground backfill of a subsidence area; II, mining the next sub-layer; and III, repeating the step II once or multiple times till the mining processes of all sub-layers of the mining section are completed. The method disclosed by the invention is simple in step, reasonable in design, convenient to implement and good in using effect, and various protective measures are combined in use, so that the potential safety hazards such as roof caving, gob fire and the like can be effectively eliminated.

The invention provides a method for recovering stagnant coal pillars left by a breast type coal mining method, which is used for a low-gas shallow coal seam with stable top board, smaller mine pressure and coal seam inclination angle, flat baseboard, hard and stable coal quality, no-water pouring top board and hard spontaneous ignition. The coal pillars are recovered with different regions, every three rows of the coal pillars is taken as a distribution unit, and air curtains are arranged between the three rows of the coal pillars and the coal pillars to form into an air inlet passageway and an air retuning passageway; and from the two rows of regular coal pillars beside a goaf, every two rows of regular coal pillars is taken as a recovering unit, the recovering unit is internally provided with a crawler belt walking type hydraulic bracket, a continuous coal mining device and an advanced supporting hydraulic bracket, the stagnant coal pillars are alternately and slantwise cut by means of both wings according to the recovering unit, the recovering unit stopes and withdraws, the stagnant coal pillars and the hydraulic bracket jointly support the top board above a recovering space, and the top board is managed by means of a complete top board falling method. Therefore, by matching with the continuous coal mining device, the scraping board conveying device and the adhesive tape conveying device, the method can recover the regular stagnant coal pillars left by a breast type coal mining method.

Provided is electric smelting type pressure type recyclable anchor rod technology. The electric smelting type pressure type recyclable anchor rod technology is novel recyclable anchor rod technology which is applied to city foundation pit supporting. The basic implementation steps are as follows: 1) after a foundation pit is excavated, a corresponding platform is drilled to form a hole; 2) an electric smelting type pressure type recyclable anchor rod is manufactured and installed; 3) the anchor rod is placed; 4) grouting, solidification and pre-stress tensioning locking are conducted by pre-embedding a grouting pipe; 5) after the anchor rod completes a use cycle, an anchor rod material is recycled through an electric smelting model. The electric smelting type pressure type recyclable anchor rod technology has the advantages that a junction form of an anchor rod body material and a pressure type end support plate is changed, and the pulling resistance of the anchor rod is improved to a greater degree; a connection of the rod material and an end plate in an anchoring system can be easily removed through characteristics of a low melting point metal material, and the recycling of the anchor rod material can be achieved very safely; the anchor rod is recycled through an electric conduction salvation model, and no pollution is generated to city foundation pit peripheral environment; the anchor rod body material can be recycled in a safe, high-efficiency and pollution-free mode through the several kinds of modes.

The invention discloses a gastric fluid director and a support thereof. The support is a reticulated tube formed by weaving woven wires, and comprises an upper support section and a lower support section, wherein the outer diameter of the upper support section is larger than that of the lower support section. The support can provide good support force and is fixed at the duodenum. The support has good compliance and fatigue resistance, has certain support force and certain flexibility, and can be stably fixed at the duodenum for a long time; the support can move along with the movement of the duodenum, but does not damage the wall of the duodenum. Furthermore, the support can be connected with a duodenal membrane tube so as to be used for treating metabolic diseases such as diabetes mellitus and obesity. The support is good in applicability, convenient in manufacturing technology, low in cost and rapid in production speed, and is used for the digestive tract; the support also can be connected with an implanted catheter.

The invention discloses a method for determining an instable critical thickness of a horizontal ore pillar in a multi-level simultaneous mining mode. The method comprises the following steps: a physical mechanics determination step of ore rock mass, namely intercepting one part of pillar body of a to-be-mined horizontal ore pillar as a sample, and determining volume density rho, a Poisson's ratiou, an ultimate tensile strength sigmaT of the sample; a horizontal ore pillar measurement step, namely measuring a length a of an extended ore body direction and a length b of a vertical ore body direction of the to-be-mined horizontal ore pillar, and preliminarily determining a minimal retained vertical thickness h of the horizontal ore pillar during mining; a maximum tension stress calculation step, namely calculating maximum tension stress sigma(tmax) stressed by the horizontal ore pillar; and an instable critical thickness determination step, namely taking the minimal retained vertical thickness h of the horizontal ore pillar as the instable critical thickness when sigma(tmax) is equal to [sigma(T)]. According to the method disclosed by the invention, a determination mechanics model ofthe critical thickness of the horizontal ore pillar is established based on a Vlasov thick-plate theory, a theoretical basis is provided for accurately determining the critical thickness of the horizontal ore pillar in time for the mine, safety recovery of the horizontal ore pillar is improved, and the utilization rate of ore resources is increased.

The invention discloses a stereoscopic coordinated type tethered subsatellite. According to the novel tethered subsatellite, a limited power mechanism and an electromagnetic control switching mechanism are utilized for achieving independent or coordinated recycling and releasing of multiple salve satellites under the condition that a master satellite does not spin, and needed space and mass are compressed. By controlling the running number of circles of a motor, all sub-satellites are unfolded according to a preset scheme, and interfering angular momentum generated by motor rotation is offsetthrough the symmetric layout. Multiple traction ropes are adopted for replacing a traditional thought of a single traction rope, and transverse swinging of the tethered subsatellite in the unfolding and recycling process is restrained. By means of double-layer spring pop-up mechanisms, the release initial velocity of the needed angle is provided for the salve satellites, and kinetic energy is stored and buffered in the recycling process.

The invention discloses a cultivation medium capable of increasing the yield of big clitocybe and a preparation method thereof. The cultivation medium comprises nutrient media and cover-soil materials of which the weight ratio is 2-3 to 1; the nutrient media are prepared from, by weight, 60-70 parts of mulberry twig stalk powder, 15-20 parts of tea tree dregs, 8-12 parts of sheep manure, 5-8 parts of bran, 3-6 parts of corn powder, 2-4 parts of phosphorus fertilizer, 0.5-1.5 parts of lime, 1-2 parts of plaster and 0.5-1.5 parts of derris powder; the cover-soil materials are prepared from, by weight, 25-30 parts of fine soil, 12-15 parts of sucrose silt, 2-3 parts of sodium selenite and 1-2 parts of bacillus thuringiensis. The cultivation medium is rich and comprehensive in nutrient, the nutritional requirement of growth development of the big clitocybe can be met, and the cultivated big clitocybe is large in size, high in growth velocity and high in disease resistance; compared with a conventional cultivation medium, mushrooms are picked about 10 days in advance, and the yield is increased by about 20 percent. The raw materials of the cultivation medium are wide and easy to obtain, the cost is low, the production process is simple, and the cultivation medium is suitable for large-scale cultivation of the big clitocybe.

,The invention provides a brake device for a new energy automobile. The brake device comprises a brake disc, a rotating main shaft, a hub connecting disc and power generation devices, the rotating main shaft is installed on the inner side of the brake disc, the hub connecting disc is installed on the outer side of the brake disc, brake calipers are installed and fixed through an automobile frame and installed on the side edge of the brake disc, kinetic energy recovery mechanisms are installed in the upper end and the lower end of the brake calipers correspondingly, the power generation devices are installed on the inner sides of the kinetic energy recovery mechanisms, and the power generation devices are driven by the kinetic energy recovery mechanisms to rotate to generate power. The rotating kinetic energy of the brake disc can be recycled when the automobile is braked, electric quantity recoil is carried out through the built-in power generation devices, electric quantity saving and endurance mileage increasing of the new energy automobile are facilitated, the brake device is different from braking energy recycling in the prior art, the position of the brake disc is changed when braking is adopted, the brake disc is meshed with the kinetic energy recovery mechanisms, electric energy can be recovered safely and reliably, and the braking effect can be improved.

The invention belongs to the field of autonomous underwater vehicles, and particularly relates to a rope throwing appliance mechanism for recovering an autonomous underwater vehicle. The rope throwing appliance mechanism comprises a base plate, a side wall cylinder, a fire pusher assembly, a launching head assembly, a cover plate, a rope, a rope throwing assembly and a seal box, wherein the overall rope throwing appliance mechanism is arranged on the autonomous underwater vehicle through the base plate, and two ends of the side wall cylinder are respectively connected with the base plate and the cover plate; the fire pusher assembly, the launching head assembly and the rope are respectively accommodated in a cavity formed by surrounding of the cover plate and the side wall cylinder, the fire pusher assembly is arranged on the base plate, and the launching head assembly is arranged on the fire pusher assembly; the rope throwing assembly and the seal box are respectively arranged on the base plate, and the autonomous underwater vehicle is electrically connected with the fire pusher assembly by an adapter; one end of the rope is connected with the launching head assembly, and the other end of the rope is connected with the rope throwing assembly. The rope throwing appliance mechanism is one of main devices for realizing quick recovery on a mother ship, and is very safe and convenient; and the recovery process is very safe.

The invention discloses recycled concrete, which is characterized by being prepared from the following raw materials in parts by weight: 150-180 parts of cement, 250-300 parts of modified recycled aggregate, 400-450 parts of fine river sand, 5-10 parts of attapulgite, 1-3 parts of porous beta-cyclodextrin cross-linked polymer nanofibers, 50-65 parts of blast furnace slag, 1-3 parts of mullite fibers, 2-5 parts of diazoalkyl urea, 4-8 parts of sulfonate-terminated hyperbranched waterborne polyurethane emulsion, 2-4 parts of additives and 75-90 parts of water. The recycled concrete is prepared from the following raw materials in parts by weight: 2-4 parts of carboxyl-terminated liquid fluororubber and 1-3 parts of water-soluble hyperbranched epoxy resin. The invention also discloses a preparation method of the recycled concrete. The recycled concrete disclosed by the invention is excellent in comprehensive performance, high in strength, low in water absorption rate, good in durability and workability and good in workability.

The invention relates to an analog micro weight space crafter land emitting testing device that comprises the bracket, emission barrel, fixture, erecting linear guide track at one side of the bracket, sliding emission platform on the linear guiding track, with the emission barrel fixed on the sliding emission platform through the fixture, with buffer set under the platform. It has imitable analog micro weight environment, being able to finish the traditional land emitting, with instant parameter testing function, integrating the testing device with the emission platform, strong in impact resistance ability.

Provided is a studding recovery method for reconstructing a covering layer through dead zone wastefill and top surrounding rock spallation collaboratively. The method comprises the specific steps that after waste rock is exploited out from a chamber and a top column through an open-stope method, a goaf is filled with the waste rock to reach a certain height, surrounding rock at the top of a studding is collapsed off once, and the studding covering layer is reconstructed collaboratively; the studding is divided into a plurality of layers, and a drilling drift is tunneled in the center of the bottom of the layers; an end non-through cutting groove is formed in the tail end of the drilling drift through a cutting courtyard slot broaching method; the cutting groove serves as the ore breaking free face, and the studding is subjected to sequential top-to-bottom interlamination advance and in-layers retreating type recovery; and broken ore is shoveled to a winze through a scooptram and is conveyed to the surface of the earth by an ore pocket through an electric locomotive. The invention first provides the method for collaboratively reconstructing the studding covering layer, the safety of studding recovery is improved, and the ore recovery rate is increased effectively.