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.

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 concrete pipe gallery inner mold in-place and demolding method. The concrete pipe gallery inner mold in-place and demolding method comprises an inner mold frame and a liftingtrolley used for moving the inner mold frame in place, the inner mold frame comprises a portal frame, movable stand columns are arranged on the two sides of the portal frame, side mold plates are installed on the movable stand columns, and the movable stand columns are connected with the portal frame through translation drivers; a top mold plate is mounted at the top of the portal frame; stand column lifting supporting legs are arranged at the bottoms of the movable stand columns, and the height of the whole inner mold frame is adjusted through the stand column lifting supporting legs; and bottom middle supporting legs capable of rising and falling are further arranged at the bottom of the portal frame. During construction, the lifting trolley lifts the inner mold frame to move and be preliminarily in place, the position and the height of the side mold plate are adjusted by combining the inner mold frame, and mold erecting and demolding work is achieved.

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.

The invention provides a novel concrete column template device. The novel concrete column template device comprises at least four column hoop pieces, a plurality of first bolt assemblies and a plurality of second bolt assemblies; the column hoop pieces are triangular steel frames, and a plurality of square holes are formed in first straight sides of the triangular steel frames being in contact with concrete column templates; a plurality of long holes are formed in second straight sides of the triangular steel frames; template matching parts are arranged at one ends of first threaded rods of the first bolt assemblies, and the template matching parts are matched with T-shaped grooves of the column templates; and when the column templates are prefabricated and assembled, the column hoop pieces penetrate through the square holes through the multiple first bolt assemblies and are connected with the T-shaped grooves of the column templates onto the column templates in a fastening mode, the column hoop pieces on every two adjacent column templates then penetrate through the square holes through the second bolt assemblies and are connected with the long holes in a fastening mode, and a fastening structure is formed. The invention further provides a construction method of the novel concrete column template device. The application range is wide, the operation is convenient, the working efficiency is high, and the connection is reliable.

The invention discloses a square hole girdling cutter and a method for performing the holing construction of a deep cutting stab-pile wall utilizing the same. The cutter comprises a truss and a square cutter edge thereof; the top of the truss is provided with a pin shaft hole for connecting a drilling rod; and a plurality of cutter bits are welded on the square cutter edge at equal interval. The method comprises the steps of pile position digging, anchoring end construction performed by the cutter, freed end construction and breast board construction. The construction method is simple in operation, fast in construction speed, high in safety factor, economic and reasonable, and capable of improving the degree of mechanization of the construction, and safely, fast and economically finishing the construction in comparison with the traditional construction method under well geological conditions.

The invention discloses an installation method of a caisson. The method is technically characterized by comprising the steps that firstly, a base groove of the caisson is treated to enable the caisson to be effectively connected with a foundation; secondly, after the base groove of the caisson is formed, the position foundation needing to be treated is filled with or leveled with bagged sand according to actual conditions on a construction site, and caisson primary positioning and initial installation are carried out; thirdly, caisson jacking and leveling work is performed, and the caisson is jacked up to be disengaged from a foundation bed; fourthly, the periphery of the caisson is temporarily plugged; fifthly, a booster pump is adopted for carrying out grouting treatment on the bottom of the caisson through a grouting hole preserved in the bottom of the caisson, a caisson foundation is laid after forming, a jacking mechanism is disassembled after mortar forms the strength, and grouting treatment is carried out inside a jacking pipeline; sixthly, a temporary plugging structure on the periphery of the caisson is dug out, and caisson installation is finished. By the adoption of the technical scheme, the construction mechanization degree is high, construction efficiency is improved, the construction cost is reduced, influences on the environment are reduced, and operation safety and environmental protection capability are improved.

The invention discloses a construction method for continuous tunneling of a coal mine TBM and the coal mine TBM. The problem that in the prior art, the working efficiency of rock roadway tunneling islow is solved. The construction method for continuous tunneling of the coal mine TBM comprises the following steps that (1), a main transportation roadway is longitudinally excavated in the one side of an area to be excavated; (2), a starting station and a receiving station which are transversely arranged are constructed at preset positions of the main transportation roadway; and (3) the coal mineTBM is hoisted to the starting station, and then continuous transverse excavation of a first roadway is carried out along a preset route. According to the construction method for continuous tunnelingof the coal mine TBM and the coal mine TBM, a method for the coal mine TBM to carry out small turning radius, reciprocating and continuous ceaseless rock roadway tunneling in a disassembling-free mode is proposed; and by means of the method, the coal mine rock roadway tunneling speed is at least increased by five times or above on the basis of a traditional tunneling speed, and the tunneling method has the advantages of being high in construction mechanization degree, high in tunneling working efficiency, good in roadway forming effect, high in work safety and the like and has high popularization value.

The invention discloses a construction method for a pipe gallery. The construction method adopts an outer formwork trolley, an inner formwork frame and a lifting trolley for moving the inner formwork set; the outer formwork trolley, the inner formwork set and the The combined use of lifting trolleys can effectively assist the operations at each stage of construction, realize the automatic positioning and automatic demoulding of the inner side formwork, inner top formwork and outer formwork, effectively reduce the labor intensity of workers, ensure the quality of concrete pouring, and improve the quality of pouring. It improves the degree of mechanization of the construction of the pipe gallery; at the same time, it has the function of rainproof operation, which effectively solves the difficulty of manual construction in rainy weather and reduces the risk of construction in rainy days. The structure is simple, the design is reasonable, the function is rich, and the movement is convenient, and it is suitable for the concrete construction of the pipe gallery.

The invention discloses a tube drawing bench for construction in an underground narrow space and a construction method. The tube drawing bench comprises a traveling system and a tube drawing system, wherein the traveling system comprises a traveling chassis, a main arm, a lifting arm and a tube drawing winch, the tube drawing system comprises a tube twisting disc retracting and releasing structure, a tube twisting disc, a protective cylinder and a protective cylinder receiving disc, the protective cylinder receiving disc is connected with the main arm through a connecting rope, the tail end of the connecting rope is connected to the tube drawing winch, the protective cylinder is connected to the bottom end of the protective cylinder receiving disc, the tube twisting disc is connected to the tube twisting disc retracting and releasing structure, and the tube twisting disc retracting and releasing structure is arranged outside the traveling chassis. According to the tube drawing bench, the sectionally-arranged protective cylinders are matched with the main arm with the shortened length, so that the overall height of the tube drawing bench is reduced, the construction requirement for tube drawing in an underground narrow space is met, the tube twisting disc is arranged to repeatedly twist the protective cylinder in the pulling-out process to reduce the friction force during lifting, and the protective cylinder is stably and efficiently pulled out under the combined action of filing and upward pulling.

The invention discloses mechanical equipment for concrete pipe gallery construction. The mechanical equipment comprises an inner form formwork and a lifting trolley used for moving the inner form formwork in place, wherein the inner form formwork comprises a portal frame, movable stand columns are arranged on the two sides of the portal frame, side form plates are installed on the movable stand columns, the movable stand columns are connected with the portal frame through translation drivers, a top form plate is mounted at the top of the portal frame, stand column lifting supporting legs are arranged at the bottoms of the movable stand columns, the height of the whole inner form formwork is adjusted through the stand column lifting supporting legs, and a bottom middle supporting leg capable of rising and falling are further arranged at the bottom of the portal frame. During construction, the lifting trolley lifts the inner form formwork to move and be preliminarily in place, the positions of the side form plates and the height of the lifting trolley are adjusted by combining the inner form formwork, and form erecting and form removing work is achieved.