82results about How to "Reduce the probability of collapse" patented technology

The present invention discloses a flower cultivation medium and a preparing method thereof. The flower cultivation medium of the invention comprises a main ingredient and additive, wherein the main ingredient comprises peat and perlite. The additive comprises a media moisture conditioner, a pH regulator and a nutrition activator. The grain diameter range of peat and perlite is 1-3mm. The flower cultivation medium media prepared according to the invention has the advantages of balanced nutrition, high content of nutrient component, stable physical property, reduced surface tension of media by the media moisture conditioner, increased wetting capacity and equality on the surface of media, changed external appearance stability of peat, prevented quick dissipation of water, increased water infiltration speed in actual use, remarkably improved water absorptivity of peat media and delayed weathering process of peat. The flower cultivation medium prepared according to the method of the invention has a reasonable nutrition structure, facilitates the absorbing of plant and satisfies the growth requirement of plant. When the cultivation medium according to the invention is used for cultivating flower, the rooting rate of flower is increased, the germination of seed is promoted and the survival rate of cutting.

A structure and method of forming a metal buffering layer during the formation of a redistribution layer is provided. It only changes a mask to form the metal buffering layer and circuit traces simultaneously. The metal buffering layer can increase the flatness of the dielectric layer covering on the metal buffering layer. It can also make the structure under the metal buffering layers suffer uniform pressure to prevent the passivation layer from cracking and the circuit traces from collapsing in order to increase the yield of the packaged chips.

The invention discloses a preparation method of a water-permeable ceramic brick. The preparation method comprises the following steps: preparing of raw materials, dosing, mixing, forming, drying and sintering, wherein the raw materials are composed of the following components in parts by weight: 86-92 parts of ceramic tile waste ceramic particles, 5-12 parts of a high-temperature inorganic binder, 2-4 parts of water glass and 0.5-2 parts of a low-temperature organic binder, wherein the mass concentration of the water glass is 1.3-1.5 g / cm<3>. The preparation method can improve the strength of a green body in the sintering process and the utilization rate of the ceramic tile waste ceramic particles and reduce the cost of the binder; the prepared water-permeable ceramic brick has high compressive and bending strength.

The invention belongs to the technical field of photocatalytic application of new materials, and particularly relates to a porous covalent triazine framework hollow microsphere as well as a preparation method and application thereof, a hard template stepwise polycondensation method is adopted to prepare the porous covalent triazine framework hollow microsphere with stable structure, low collapse rate and independent hollow structure, the porous covalent triazine framework hollow microsphere has excellent photocatalytic hydrogen production performance when being applied to visible light catalytic hydrogen production, thereby solving the technical problems that the covalent triazine framework hollow microsphere is not an independent hollow structure and the hydrogen production rate is poor in the prior art.

The invention discloses a combined wall which is arranged between two adjacent stand columns of a building. The combined wall comprises a top keel, a bottom keel, side keels and a filling plate. The top keel is opposite to the bottom keel. The two ends of both the top keel and the bottom keel are embedded into the two adjacent stand columns respectively. One end of each side keel is arranged on the top keel, and the other end of each side keel is arranged on the bottom keel. The filling plate is detachably arranged in a space formed by the side keels, the stand columns, the top keel and the bottom keel in a filling mode and / or detachably arranged in a space formed by every two adjacent side keels, the top keel and the bottom keel in a filling mode. An external wall thermal insulation decoration integrated wallboard is tightly attached to the outer side of a wall body, and an internal wall decoration integrated wallboard is tightly attached to the inner side of the wall body. The combined wall is the combined wall body capable of conducting heat preservation, heat insulation and sound insulation, wherein the combined wall body is characterized in that an inner insulated board, a middle insulated boar and an outer insulated board clamp two air layers, that is, the combined wall is an anti-seismic and environment-friendly spliced wall body formed by combing the three wallboards and all the keels.

The invention discloses a soil-free plug seedling substrate. The seedling substrate comprises a substrate body and additives, wherein the substrate body is formed by mixing vermiculite and fully fermented and decomposed organic substrate materials in volume ratio of 1:1; and the added amounts of the additives are as follows: 3-5kg of bioorganic fertilizer in per cubic meter, 0.2-0.3kg of potassium sulfate in per cubic meter, 0.5-0.6kg of diammonium phosphate in per cubic meter, 30-40g of carbendazim in per cubic meter and 50-60g of 65% zineb powder in per cubic meter. According to the invention, soil-producing renewable resources are fully utilized, the seedling cost can be obviously reduced, the cultured seedlings grow vigorously, and the seedlings have no obvious growth delaying period after the planting. The substrate is particularly suitable for industrial plug seedling with low root disintegration rate, and is suitable for long-distance transportation. Therefore, the substrate has a brilliant application prospect.

A structure and method of forming a metal buffering layer during the formation of a redistribution layer is provided. It only changes a mask to form the metal buffering layer and circuit traces simultaneously. The metal buffering layer can increase the flatness of the dielectric layer covering on the metal buffering layer. It can also make the structure under the metal buffering layers suffer uniform pressure to prevent the passivation layer from cracking and the circuit traces from collapsing in order to increase the yield of the packaged chips.

The invention discloses a method for collecting a whole-section soil sample. The method comprises the following steps: 1) digging a soil pit, wherein the soil pit has at least one vertical plane, and the vertical plane of the soil pit is finished to be perpendicular to the horizontal plane; 2) an auxiliary wooden frame comprises a hanging arm and a vertical arm perpendicular to the hanging arm; placing the supported hanging arm on the horizontal plane at the outer periphery of the vertical plane of the soil pit, and guaranteeing that the vertical arm is flatly attached to the vertical plane of the soil pit; 3) removing soil on the left and right sides of the whole-section soil sample labeled by the vertical arm by using a collection tool; vertically inserting along the bottom of the vertical arm by using a supporting tool; removing soil below the supporting tool by using the collection tool; 4) removing the auxiliary wooden frame, sleeving the sample collection box in the finished whole-section soil sample, taking out the supporting tool, and segmenting the back of the whole-section soil sample by using a fine line, so as to obtain the whole-section soil sample. According to the method disclosed by the invention, the production efficiency is improved, time and manual labor are saved, and the defects that the original soil sampling method is complicated and unsuitable for sandy soil are overcome.

The invention discloses a flower cultivation nutrient medium which comprises main materials and additives, wherein the main materials comprise peat, perlite and vermiculite; the additives comprise a medium moisture regulator, a pH value adjusting agent and a nutrition initiating agent; the particles of peat, perlite and vermiculite are greater than or equal to 4mm. The invention further provides a preparation method of the flower cultivation nutrient medium. The preparation method comprises the following steps: (1) uniformly mixing peat, perlite and vermiculite so as to obtain the main medium materials, and spraying bactericide into the main material; (2) firstly, adding the medium moisture regulator into the main materials, secondly, adding the pH value adjusting agent to adjust the pH value of the medium to be 6-7, then adding the nutrition initiating agent, and obtaining a finished product of the flower cultivation nutrient medium after uniform mixing. The flower cultivation nutrient medium disclosed by the invention is balanced in nutrition and stable in physical property, and the water absorption of the peat medium is remarkably improved; when flowers are cultivated by the flower cultivation nutrient medium disclosed by the invention, the rooting rate of lowers is increased, leaves of the flowers can be large, a great number of flower heads can be grown, plants can grow high, and flowers can grow exuberantly.

The invention discloses a full-automatic cotton packaging machine system, which comprises a microcomputer control system, a movement system, a tightening system, a cutting system and a welding system, wherein the microcomputer control system outputs a signal to the movement system, the output end of the movement system is connected with the input end of the tightening system, the input end of the cutting system is connected with the output end of the tightening system, and the input end of the welding system is connected with the output end of the cutting system. The system has the advantages that the effect on welding by human factors, weather factors and the like is avoided, the labor cost is greatly reduced, the integral packaging speed is increased, the welding effect is improved, the stable and reliable welding is provided, the high-speed packaging line is favorable for accelerated popularization, the integral level of China cotton packaging is improved, and the automatic equipment packaging mode is adopted to reduce the unreasonable package bursting rate.

The invention relates to the technical field of bridges, in particular to a bridge repairing and maintaining structure and a construction method thereof. The bridge repairing and maintaining structureis erected between a bridge and a guide road and comprises a reinforcement cage, geotechnical cloth and a concrete pavement; the geotechnical cloth covers the inner wall of the reinforcement cage, and the geotechnical cloth is fixedly connected with the reinforcement cage; the concrete pavement is arranged in the reinforcement cage and located on the side, away from the reinforcement cage, of thegeotechnical cloth. In the application, the probability of settlement of a roadbed is reduced; when a running vehicle runs at the bridgehead of a new roadbed, the running vehicle runs stably, the jumping and jolting conditions of the vehicle are reduced, the collision of the vehicle to the surface of the roadbed is reduced, and the effect of prolonging the service life of the roadbed is achieved.

The invention relates to the field of building construction, in particular to a grooving machine for underground grouting continuous wall construction and a construction method. The grooving machine comprises a machine table and a grooving device, wherein the grooving device is slidably connected with a base table, the grooving device comprises a mounting frame, drill rods and drill bits, the drill rods are rotatably connected with the mounting frame, the drill bits are fixedly connected with the drill rods, two rows of drill rods are arranged in parallel, and drill holes drilled by the two rows of drill bits are arranged in a tangent mode. In the invention, the two grooving processes are reduced to one time, meanwhile, the one-time standing cement slurry solidification process is also reduced, then the construction period of the double-width continuous wall is greatly shortened, and the purpose of improving the construction efficiency of the double-width continuous wall is achieved.

The invention discloses a reduction device and method for explosion noise and shock in a tunnel. The reduction device is arranged in an explosion blasthole and comprises a shock reduction layer, a noise reduction layer, interlayers and a sealing plug; the shock reduction layer is an elastic piece of which one end is provided with an opening, and the shock reduction layer is filled with air and wraps the outer side of the noise reduction layer; the noise reduction layer is internally provided with a noise absorption material and provided with an opening which is in the same direction as that ofthe shock reduction layer, and the sealing plug for sealing the opening is arranged at the opening of the noise reduction layer; the sealing plug comprises a plurality of layers of noise absorption materials; a space for containing explosives is formed in the noise reduction layer and internally provided with the multiple interlayers. According to the reduction device and method for the explosionnoise and shock in the tunnel, the noise and shock which are generated during tunnel explosion construction can be reduced, and harm of the noise and shock to the surrounding environment is relieved.

The invention discloses an anti-collapse and waterproof device for construction, and belongs to the technical field of building construction. The anti-collapse and waterproof device for construction comprises a plurality of draining anchor rods, adjacent covers, a base plate and a plurality of pressure sensors, wherein the draining anchor rods are uniformly arranged on surrounding rock, a plurality of water holes are formed in the peripheral walls of the draining anchor rods, and anchor rod filter elements are filled in the draining anchor rods; the adjacent covers are distributed in the vertical direction, connected through draining branched pipes, and used for guiding seeping water to a draining main pipe arranged close to the bottom of the surrounding rock; the base plate is arranged onthe draining anchor rods in a sleeving mode and connected with an anti-collapse main body through first springs; the pressure sensors are arranged between the first springs and the anti-collapse mainbody; and the pressure sensors and an alarm device are electrically connected with a controller. According to the anti-collapse and waterproof device for construction, the draining anchor rods not only have the inherent supporting function of traditional anchor rods, but also can serve as a channel for discharging seeping water in the surrounding rock, so that a collapse caused by a water channelformed in the outer surface of the interior of the surrounding rock by the seeping water is avoided; and the base plate is arranged on the draining anchor rods, and the stress of the base plate is detected through the pressure sensors to detect deformation of the surrounding rock, so that the collapse is prevented.

The invention relates to an anti-seismic house building construction structure. The anti-seismic house building construction structure comprises a base plate abutting against the upper portion of a foundation, a building body fixedly arranged on the upper portion of the base plate and a plurality of pile foundations arranged on the lower portion of the base plate; the pile foundations are inserted into the foundation; and each pile foundation comprises an upper pile and a lower pile, wherein the top of the upper pile is connected with the base plate through a transverse damping mechanism, the transverse damping mechanism is used for balancing transverse shock waves generated by an earthquake, the bottom of the upper pile is connected with the lower pile through a vertical damping mechanism, the vertical damping mechanism is used for balancing vertical shock waves generated by the earthquake, and the building body and the base plate are fixed in a reinforced mode through a reinforcing assembly. According to the anti-seismic house building construction structure, the transverse shock waves generated by the earthquake are balanced through the transverse damping mechanisms, the vertical shock waves generated by the earthquake are balanced through the vertical damping mechanisms, the frequency and amplitude of up-down or left-right shaking of the building body can be reduced, the probability of collapse of the building body is reduced, and the anti-seismic effect is improved.

The invention provides a metal wire manufacturing method and a metal wire isolating method. The method comprises the steps that 1) an anti-reflection layer is formed on a metal layer; 2) a photoresistlayer is formed on the anti-reflection layer, and an etching window is formed in the photoresist layer; and 3) a halogen-containing gas is used and an alkane-based gas is added to etch the metal layer to separate the metal layer into a number of metal lines. The alkane-based gas reacts with the halogen-containing gas to generate an auxiliary carbon halogen compound, so as to avoid the side etching of the sidewall of the metal lines and reduce the consumption rate of the photoresist layer during the etching process. According to the invention, the added alkane-based gas is used as the source of an etching aluminum by-product CClx, which can effectively reduce the etching rate of the photoresist layer; reduced line width of the metal lines and top damage, which are caused by insufficient residue of the photoresist layer, are avoided; side etching of the sidewall of the metal lines is avoided through the by-product CClx; and the overall width of the metal lines is the same as the targetwidth.

The invention discloses a tool with an automatic drilling pressure adjustment function. The tool is connected with other well drilling tools through an outer thread of a lower connector of the lower end of a mandrel and an inner thread of an upper connector. A plurality of spiral springs in the upper connector store energy and are fixed into the upper connector, and the upper connector is connected with an inner spiral spline cylinder in a threaded mode. Inner and outer spiral splines are of rectangular tooth profiles. An outer spiral spline shaft is connected with the upper side of a connection sleeve through a thread, and a pressurizing slide pipe is connected with the lower side of the connection sleeve though a pipe thread. A runner sleeve pipe with a Y-shaped lower portion is in interference fit with the pressurizing slide pipe through a bearing. A pressurizing piston shaft is connected to a drill bit. A key groove in the pressurizing slide pipe can allow the pressurizing piston shaft to slide up and down therein. A separation layer is arranged in the middle, and four round holes are distributed evenly in the separation plate. The tool has the advantages that abrasion of the drill bit during well drilling is relieved effectively through automatic pressure adjustment; during deep well drilling and horizontal well drilling, stable drilling pressure of the drill bit can be kept, rock breaking can be effectively assisted, sticking of the tool and back-pressure can be reduced, utilization rate of the drill bit can be increased, and cost can be reduced.

The invention relates to a strong wind preventing device of a wind power tower. The strong wind preventing device of the wind power tower comprises a tower body and a wind driven generator installed at the top end of the tower body. Multiple inhaul cables are arranged along the tower body. One end of each inhaul cable is fixed to the top end of the tower body, and the other end of each inhaul cable is connected with a gear linkage device. The gear linkage device is connected with a control system. The gear linkage device is controlled by the control system so as to control the inhaul cables to be folded or unfolded. When the inhaul cables are folded, the inhaul cables are hung down and folded along the tower body. When the inhaul cables are unfolded, the inhaul cables penetrate through a blade sweeping area of the wind driven generator. The bottom end of the tower body is provided with multiple strain measuring devices corresponding to the inhaul cables in number. Most of horizontal force caused by strong wind on the wind power tower is transferred into inhaul cables, and the stress level and collapsing probability of the tower are greatly reduced.

The invention discloses a reduction device and method for explosion noise and shock in a tunnel. The reduction device is arranged in an explosion blasthole and comprises a shock reduction layer, a noise reduction layer, interlayers and a sealing plug; the shock reduction layer is an elastic piece of which one end is provided with an opening, and the shock reduction layer is filled with air and wraps the outer side of the noise reduction layer; the noise reduction layer is internally provided with a noise absorption material and provided with an opening which is in the same direction as that ofthe shock reduction layer, and the sealing plug for sealing the opening is arranged at the opening of the noise reduction layer; the sealing plug comprises a plurality of layers of noise absorption materials; a space for containing explosives is formed in the noise reduction layer and internally provided with the multiple interlayers. According to the reduction device and method for the explosionnoise and shock in the tunnel, the noise and shock which are generated during tunnel explosion construction can be reduced, and harm of the noise and shock to the surrounding environment is relieved.

The embodiment of the invention provides a battery cell blanking clamping mechanism, and relates to the field of lithium battery manufacturing equipment. The battery cell blanking clamping mechanism comprises an inner side clamping plate, an outer side clamping plate and a clamping driving mechanism, wherein the inner side clamping plate and the outer side clamping plate are oppositely arranged; the clamping driving mechanism is simultaneously in transmission connection with the inner side clamping plate and the outer side clamping plate and is used for driving the inner side clamping plate and the outer side clamping plate to be mutually close to each other or mutually separated; and the cross sections of the inner side clamping plate and the outer side clamping plate are rectangular. Through the adoption of the inner side clamping plate and the outer side clamping plate of rectangular and plate-shaped structures, the occupied space of the clamping plates is smaller; the probability of battery cell inner side collapse is reduced; meanwhile, the clamping plates are more stable when being stressed in the horizontal direction; deformation cannot easily occur, so that the deformationand wrinkling of the battery cell can be avoided; the contact area between the clamping plates and the battery cell is smaller; the clamping force is greater; the clamping effect is good; and the corepulling risk due to driving of an inner layer diaphragm during the needle coiling and needle pulling can be reduced.

The present substrate processing method includes a pre-drying processing liquid supplying step of supplying, to a front surface of a substrate, a pre-drying processing liquid, having a freezing point lower than a freezing point of the solidified body forming substance, a solidified body forming step of solidifying a portion of the pre-drying processing liquid on the front surface of the substrate to form the solidified body, containing the solidified body forming substance, inside the pre-drying processing liquid, a liquid removing step of removing the pre-drying processing liquid on the front surface of the substrate while letting the solidified body remain on the front surface of the substrate, and a solid removing step of removing the solidified body, remaining on the front surface of the substrate, from the front surface of the substrate by making the solidified body change to a gas.

The present invention discloses a flower cultivation medium and a preparing method thereof. The flower cultivation medium of the invention comprises a main ingredient and additive, wherein the main ingredient comprises peat and perlite. The additive comprises a media moisture conditioner, a pH regulator and a nutrition activator. The grain diameter range of peat and perlite is 1-3mm. The flower cultivation medium media prepared according to the invention has the advantages of balanced nutrition, high content of nutrient component, stable physical property, reduced surface tension of media by the media moisture conditioner, increased wetting capacity and equality on the surface of media, changed external appearance stability of peat, prevented quick dissipation of water, increased water infiltration speed in actual use, remarkably improved water absorptivity of peat media and delayed weathering process of peat. The flower cultivation medium prepared according to the method of the invention has a reasonable nutrition structure, facilitates the absorbing of plant and satisfies the growth requirement of plant. When the cultivation medium according to the invention is used for cultivating flower, the rooting rate of flower is increased, the germination of seed is promoted and the survival rate of cutting.

The invention relates to the technical field of municipal buildings, especially to a municipal bridge with reinforcing devices. The bridge comprises a bridge body and supporting columns fixedly installed at the bottom of the bridge body. The ends, away from the bridge body, of the supporting columns are fixedly arranged on the ground. Reinforcing rods are arranged on the two sides, in the width direction of the bridge body, of the supporting column;a containing groove is formed in the supporting column, one end of each reinforcing rod is hinged into the containing groove, the other end of eachreinforcing rod is hinged to the bottom of the bridge body, a linkage assembly is arranged in each containing groove, and the linkage assembly is in linkage with the two reinforcing rods to rotate reversely. The bridge has the effects that the two sides of the bridge body in the width direction can be reinforced, the collapse probability of the bridge body is reduced, and traffic accidents are reduced.

The invention discloses a force measurement buffer type height gauge, and belongs to the field of linear metrology. The force measurement buffer type height gauge comprises a height gauge body and a probe moving plate installed at the left end of the height gauge body. The left end of the probe moving plate is fixedly connected with an extension induction support rod, and the left end of the extension induction support rod is fixedly connected with an inductance buffer connecting block, a spline sliding groove and an inductance buffering cavity located on the upper side of the spline sliding groove are formed in the inductance buffering connecting block, secondary buffering can be carried out on measuring force generated after contact measurement of the measuring pin through a spline sliding column and a flexible telescopic insulation sleeve, and the rigid resistance of the measuring pin is changed by increasing flexible resistance. Therefore, the damage to the measuring pin caused by large resistance impact due to errors is effectively avoided, the deformation quantity of the measuring pin and the probability of disintegration are reduced, the loss of the measuring pin is reduced, the damage to the height gauge body caused by the resistance impact can be effectively reduced, the measurement precision of the height gauge body is effectively ensured, and the accuracy of measured data is improved.

The invention provides a light emitting device. The light emitting device is provided with a substrate which includes a control circuit. The light emitting device comprises a light emitting element with a semiconductor layer sequence. The semiconductor layer sequence comprises a first-type semiconductor layer, a second-type semiconductor layer and an active light emitting layer between the first-type semiconductor layer and the second-type semiconductor layer. The light emitting device has shielding layers which are distributed at periphery of the light emitting element. The light emitting element is connected with the control circuit of the substrate. The light emitting element utilizes or is going to utilize a substrate stripping process by laser. The shielding layers prevent working abnormities of the light emitting device cased by control circuit damage by the laser in substrate stripping.

The invention discloses a deep groundwater heavy metal content detection device, belongs to the field of groundwater, and adopts the scheme that a sampling device stably slides up and down in a pre-drilled hole when a screw rod rotates, and is in a closed state between a normal-temperature fixed cylinder and a sliding cylinder; the sealing effect between the fixed barrel and the sliding barrel isimproved, and blockage caused by dust entering the fixed barrel is reduced; when the shape memory spring is deformed due to heat, the telescopic rod is stretched through the shape memory spring, so that the sliding barrel is separated from the fixed barrel, and underground water enters the sampling barrel through the water inlet hole; groundwater in the sampling barrel is effectively prevented from leaking through a water inlet through absorbent cotton, and when the groundwater is sampled in the sampling barrel, the groundwater melts edible gelatin, so that the interior and the periphery of the sampling barrel are cooled instantly, and the shape memory spring deforms in a cold state, so that the telescopic rod contracts, and the fixed cylinder and the sliding cylinder are mutually closed.

The invention discloses an anti-collapse sinking type toilet construction floor tile and a construction method, and belongs to the field of construction. According to the scheme, a sliding pipe slidesin an aqueous solution through sinking of a top plate, so that an effervescent disintegrant at the lower end of the sliding pipe makes contact with the aqueous solution in a fixing column for a reaction, and a large amount of carbon dioxide is released; the interior of an inflation expansion bag is inflated and expanded, floor tile bodies are jacked up, a waterproof agent in a gap filling supportis extruded to gaps among the floor tile bodies through through holes after being extruded, the gaps among the floor tile bodies are sealed, the probability of further collapse is reduced, and wateris guided out to a sewer through water guide grooves at the upper ends of anti-sliding strips; and accumulated water in the water guide grooves is reduced through a hydrophobic layer, the anti-slidingstrips can rapidly expand when encountering water, collision among the multiple floor tile bodies is reduced, and the accumulated water at the upper ends of the floor tile bodies is adsorbed throughthe anti-sliding strips.

The seed emulsion is prepared from the following raw materials in parts by weight: 50 to 90 parts of deionized water, 15 to 25 parts of methyl methacrylate, 5 to 15 parts of methacrylic acid, 0.5 to 1.5 parts of anionic emulsifier, 0.1 to 0.5 part of cross-linking agent, 0.1 to 0.5 part of silane coupling agent, 0.1 to 0.5 part of acrylic acid long-chain alkyl ester and 0.08 to 0.16 part of initiator. 0.01 to 0.1 part of a nonionic emulsifier and 0.01 to 0.1 part of a stable polymer. The prepared seed emulsion has good particle size uniformity, structural stability, swelling property and hydrophobicity, the structural stability of the covering polymer hollow microspheres can be improved, and therefore the good covering performance of the covering polymer is guaranteed.

The invention relates to the technical field of safety monitoring, and discloses an online pavement settlement monitoring method and system, electronic equipment and a storage medium to improve the accuracy and real-time performance of pavement settlement monitoring. The online pavement settlement monitoring system comprises at least one first detection device, wherein each first detection devicecomprises a first light emitter and a first light detection assembly which are respectively arranged on different mounting rods; at least one second detection device, wherein each second detection device comprises a second light emitter and a second light detection assembly which are arranged on mounting rods on the two sides of a to-be-monitored road surface respectively, and a reflector arrangedon the to-be-monitored road surface; and a data processing device used for determining an unsettled mounting rod and a candidate second detection device according to the change of the first light intensity information output by the first light detection assembly, and determining whether the pavement to be monitored settles or not based on the change of the second light intensity information output by the candidate second detection device.