41results about How to "High degree of construction mechanization" patented technology

The invention discloses an assembling type connecting aisle structure and a construction method thereof. The assembling type connecting aisle structure is characterized by comprising a shield tunnel concrete segment, a shield tunnel composite segment, an inter-segment connecting system, a connecting aisle steel segment and a connecting aisle concrete segment. The shield tunnel composite segment comprises a composite segment steel segment section, a composite segment concrete segment section and a reserved reinforcing body box, the outer side of the composite segment steel segment section is connected with the shield tunnel concrete segment through connecting bolts in an assembling mode, the inner side of the composite segment steel segment section is integrally connected with the composite segment concrete segment section, and the inner side of the composite segment concrete segment section is connected with the connecting aisle steel segment through the inter-segment connecting system. According to the construction method, the mode of starting with a pipe jacking method and advancing with a shield method is adopted. The assembling type connecting aisle structure and the construction method thereof have the advantages the quality is controllable, the integrality with a shield tunnel is high, and joint waterproofness is high; and the starting problem of narrow and small spaces is solved, and the construction axis of a connecting aisle can also be easily controlled.

The invention relates to a plugging agent and plugging slurry for drilling fractured leakage and a plugging construction method. The plugging agent is prepared from the following components in parts by weight: 80 to 85 parts of cement, 6 to 10 parts of floating beads, 6 to 10 parts of micro-silicon and 1 to 3 parts of asbestos fibers. The plugging agent for the drilling fractured leakage, disclosed by the invention, is characterized in that the cement, the floating beads, the micro-silicon and the asbestos fibers are compounded to form a main body of the plugging agent, wherein the asbestos fibers can be used as a bridge plug for bridging to fractures; the floating beads and the micro-silicon realize filling and plugging effects on the fractures; all the components are coordinated with oneanother, so that the plugging agent easily enters a leakage layer and realizes the comprehensive effects of serving as the bridge plug, bridging, filling and plugging; the plugging agent is especially suitable for the fractured leakage with the width of 3 to 10mm and leakage rate of 5 to 100m<3>; in addition, the plugging agent has the advantages of quick plugging effects, short operation periodand high success rate of plugging leakage.

Provided is a reinforcement and rescuing construction method used after landslide and collapse of a soil slope. Firstly, steel bars are inserted at the positions of landslide and collapse of a soil slope; secondly, grouting holes are drilled in soft soil; thirdly, grouting materials are prepared for use; fourthly, the inserted steel bars are transversely bundled into a whole through steel wires, or the inserted steel bars are welded into a whole in an electric welding mode; fifthly, the sunken portion of the collapse is filled with plant fibers and leveled; finally, the prepared grouting materials are injected into the grouting holes and the place filled with the plant fibers at high pressure through a grout injecting machine, and after the grouting materials are solidified, a fixed whole of the soil slope can be formed after landslide and collapse. According to the method, landslide soil does not need to be wiped out; the soft soil is changed into a tight rock-similar body through the grout injecting technology, and the plant fibers and the grouting materials form the stable and tensile concrete whole. Materials can be obtained conveniently; the mechanization degree of construction is high, construction speed is high, and the reinforcing effect is good. The method is suitable for reinforcement and recuing after landslide and collapse of soil slopes around mountainous area highways, railways, bridges and building structures.

The invention discloses a coal mine TBM continuous roadway excavation construction method and a coal mine TBM, which solves the problem of low work efficiency of rock roadway excavation in the prior art. The present invention is a construction method for coal mine TBM continuous roadway excavation, the steps are as follows: S1: Excavate the main transport roadway longitudinally on one side of the area to be excavated; Station and receiving station; S3: Hoist the coal mine TBM to the starting station, and then carry out continuous lateral excavation of the first rock roadway along the preset route. The present invention proposes a method for coal mine TBM to carry out small turning radius, reciprocating, continuous uninterrupted rock roadway excavation without dismantling the machine. The method makes the coal mine rock roadway excavation speed at least on the basis of the existing traditional roadway speed. Increased by more than five times, the roadway digging method has many advantages such as high degree of construction mechanization, high excavation work efficiency, good roadway forming effect, high operation safety, etc., and has high promotion value.

The invention discloses an extended anti-stripping prestressed hollow grouting anchor rod and its supporting method, which comprises an anchor head and an anchor rod body. Block expansion shell clips, wedge-shaped grooves and T-line grooves are symmetrically arranged on the wedge head in the expansion shell, and wedge-shaped wings and T-line wings respectively matched with wedge-shaped grooves and T-line grooves are arranged on the expansion shell clips , a grout stopper, a backing plate, a spherical nut and a prestressing device are sequentially arranged at the end of the anchor rod body. The present invention can effectively prevent the occurrence of the phenomenon that the expansion shell clip is pulled away from the anchor rod and falls off from the inner wedge head of the expansion shell when the pretightening force is applied; the present invention installs one or more The fixer for fixing the position of the anchor body and the anchor hole can overcome the problem that the super-long anchor rod is not easy to be centered; the present invention applies prestress by mechanical means, effectively overcoming the defects in the prior art of simply relying on manpower to apply prestress.

The invention discloses an annular bolt installation method for a metallurgical industry furnace body, and belongs to the field of metallurgical engineering equipment installation and civil engineering cooperation. For the problems that in the prior art, the device installation is complex, precision is poor and labor hours are consumed, the annular bolt installation method for the metallurgical industry furnace body is provided. The annular bolt installation method includes the following steps that A, a bolt system is manufactured and segmented, and all bolts are divided into multiple symmetrical systems, and each system comprises multiple bolts and fixing anchor plates; B, fixing welding pieces of supporting frames below the bolt systems are embedded in a base concrete cushion layer in advance and poured on the upper surface of the cushion layer; C, each bolt supporting frame is arranged in place along the circumference, the top elevation of each bolt supporting frame is adjusted, and the bolt supporting frames are welded to all embedded parts around the bolt systems in the cushion layer; D, the bolt systems are sequentially installed on the supporting frames, and the top elevation and perpendicularity of the foundation bolts of all the system bodies are fine adjusted; E, the bolt system bodies are welded and installed to form the whole annular bolt system; F, the bolt system bodies are subjected to concrete pouring; and G, acceptance inspection is conducted. The annular bolt installation method is easy to install, high in precision and high in efficiency.

Disclosed are a building envelope inner and outer wall anti-seismic and sound insulation anti-cracking integrated structure and a construction method of the structure. An outer wall is connected with the outer side of a frame column to form an integrated building envelope surrounding the frame column, one part of the frame column is embedded in the outer wall, the outer wall is a cast-in-place sandwich wall, the outer wall is filled with light porous inorganic core materials, a lightgage steel joist in the core materials is anchored with face plates on the two sides, the outer wall is connected with the inner wall through connecting ribs, and a reinforcing keel is arranged on the connecting portion. According to the structure, containment and heat preservation are integrated, connection between the cast-in-place light inorganic heat preservation composite outer wall and the constructed inner wall is successfully achieved, the good heat preservation, sound isolation and deformation anti-cracking treatment is achieved, industrial wastes are recycled to be used as raw materials to form nonflammable inorganic foam heat preservation slurry, and due to the rich porous structure in the slurry, the slurry has the excellent heat preservation and sound isolation effects. According to the structure and the method, form removal is not required, construction is easy, the forming speed is high, maintenance is not needed, flexible and continuous casting can be achieved, the building construction efficiency is improved by 30 percent, and the cost is reduced by more than 10 percent.

The invention discloses a beam foundation structure. The beam foundation structure comprises a supporting plate; a prefabricated pile is vertically arranged at a position of the supporting plate, wherein the position is close to one lateral side; the prefabricated pile is fixed on the supporting plate; a connecting steel plate is horizontally arranged on the prefabricated pile; one end of the connecting steel plate penetrates the prefabricated pile to be connected with the inner wall of the supporting plate and the other end of the connecting steel plate penetrates the prefabricated pile to be fixedly connected with a positioning plate; an installation plate is arranged between the prefabricated pile and the connecting steel plate; the installation plate is fixed on the prefabricated pile and the connecting steel plate; one lateral side of the positioning plate, which is opposite to the prefabricated pile, is provided with an anchoring bolt; one end of the anchoring bolt extends into the positioning plate and the other end of the anchoring bolt penetrates the supporting plate to extend into a steel platform panel; the steel platform panel is fixedly connected with the supporting plate; the lateral side of the positioning plate, which is opposite to the prefabricated pile, is also provided with a steel protection tube; one end of the steel protection tube is connected with the positioning plate. According to the beam foundation structure, the self-weight is light, the degree of mechanization of construction is high, the bearable horizontal load capability is large, the connection performance is stable, the protection performance is high, the installation is convenient, the construction speed is high, and the service life is long.