9results about How to "Solve construction problems" patented technology

This utility model belongs to the technical field of reinforced concrete composite shear wall building structures in civil engineering, specifically relating to a bidirectional hollow slab composite shear wall with opening-narrowing stirrups. By setting opening-narrowing stirrups corresponding to the horizontal holes of the bidirectional hollow slab at the edge members at both ends of the shear wall, and by setting longitudinal reinforcement distributed within the wall and longitudinal reinforcement of the edge members at the corresponding positions of the vertical holes of the bidirectional hollow slab and the opening-narrowing stirrups, the structure not only meets design requirements and facilitates construction, but also, due to the special structure of the opening-narrowing stirrups, the constraint area of ​​the opening-narrowing stirrups on the core concrete can be adjusted by the angle formed by the longitudinal and horizontal sections. This allows the constraint effect of the opening-narrowing stirrups on the core concrete to gradually decrease towards the opening end, forming a vertical energy dissipation zone under large horizontal lateral displacement. This effectively controls the structural failure mode and energy dissipation method, achieving a unity of constructability, good economy, and seismic performance in the new composite shear wall structure.

The invention discloses a TBM double-track tunnel trackless transportation cross-line bypassing cushion layer rapid construction method, and belongs to the technical field of tunnel construction. According to the method, a construction area is divided into a plurality of construction sections in the longitudinal direction of a tunnel, construction and transport vehicle framing and side alternate operation is organized, and parallel cushion layer pouring and trackless transport are achieved; the method comprises the following steps of: performing radar detection and scabbling treatment on the top surface of an inverted arch block during construction preparation; installing a steel plate water stop belt, and penetrating through the ground beam and the drainage blind pipe; a detachable steel pipe is adopted for shaping and constructing a cushion drainage ditch; after a reinforcing mesh is laid, concrete pouring, multi-pass surface finishing, steam and heat preservation curing and temperature and humidity monitoring are conducted; by optimizing the construction organization and technology, the problems that transportation is interrupted, the construction period is long and cracking is prone to occurring in a traditional method are solved, efficient, high-quality and low-interference cushion layer construction is achieved, optimal construction parameters can be scientifically screened by setting a contrast test section, and adaptability is high.

A kind of soft soil layer deep foundation pit underground comprehensive pipe gallery supporting structure, including subway line area (1), it is characterized in that: one side of the subway line area (1) periphery is left piling area (2), the other side of subway line area (1) periphery is right piling area (3), located left concrete pile (4) and located right concrete pile (4) between along the spanning direction of underground comprehensive pipe gallery is erected with arc protective arch (6), two rows of support piles (13) are vertically fixed on arc protective arch (6) or cambered surface connecting component (8) and are arranged, located the same side support pile (13) between is provided with pipe gallery continuous wall (16) by concrete pouring, the present application has reasonable structure, arc protective arch is used as protective main structure, the load of structure, backfill soil and construction machine above subway line area is shared to the piling area outside bottom subway line area, the safety of subway line is guaranteed to the greatest extent.

The invention belongs to the technical field of capping beam construction, and particularly discloses a large-span door type capping beam construction technology which is used for a capping beam with the span larger than 50 m and comprises the steps that a vertical foundation support is assembled on an existing structure; a support is erected on the periphery of the existing structure, a supporting mechanism is arranged at the bottom of the support and forms a stress face, and when the supporting mechanism is stressed to rotate, bending moment force generated by concentrated stress in the supporting mechanism is released; integrally hoisting the pre-assembled steel truss to a preset bent cap; and layered pouring is conducted on the steel truss hoisted to the preset bent cap, so that bent cap construction is completed. The vertical support is directly arranged on the existing structure, so that the reliable transmission of the load of the upper structure is realized; through the arrangement of the supporting mechanism, flexible adjustment of the elevation of the support is achieved, and the construction efficiency is remarkably improved; through the free rotation effect of the stress surface, the bending moment is prevented from being transmitted to the foundation, the stress performance of the support is effectively improved, and the overall design of the steel support is further optimized.

This invention relates to the field of mine ecological restoration technology, and discloses a method and system for mine ecological restoration. The restoration method includes selecting an area with residual heat from underground coal fires on a mine slope where residual coal has spontaneously combusted as a restoration zone; reinforcing and stabilizing the slope of the restoration zone; laying a sludge substrate with a moisture content of 60%-80% on the stabilized slope surface, and using the residual heat from the underground coal fires for in-situ biological drying until the volume reduction reaches a preset threshold of 40%-60%; subsequently, covering the dried sludge substrate with a soil substrate layer and a soil microbial substrate layer to construct a composite growth matrix; and finally, maintaining vegetation on the slope. This invention cleverly combines the residual heat from abandoned mines with urban sludge treatment, achieving the harmlessness, reduction, and resource utilization of sludge, while simultaneously solving the problems of excessively high soil temperatures and difficulty in plant survival in mining areas, achieving the goal of ecological restoration through waste treatment and synergistic efficiency.

The utility model provides an arc-shaped wall protection plate structure, and relates to the technical field of wall decoration, an arc-shaped wall protection plate comprises a first straight wall plate, a bent plate structure and a second straight wall plate, and one end of the first straight wall plate is provided with a first clamping groove; a first clamping groove is formed in one end of the bent plate structure, a second clamping groove is formed in one end of the bent plate structure, the first clamping groove and the second clamping groove are connected through a splicing piece, a third clamping groove is formed in the end, away from the second clamping groove, of the bent plate structure, and a fourth clamping groove is formed in one end of the second straight wall plate. The third clamping groove and the fourth clamping groove are connected through a splicing piece. The arc-shaped wall protection plate structure effectively achieves the effect of being tightly attached to the curve of the curved wall face, not only solves the construction problem of traditional arc-shaped wall face decoration, but also provides a technical paradigm for industrial installation of a complex curved surface space, and is a key innovation of the wall protection plate structure.

The utility model relates to the technical field of building construction, and discloses a large-span steel structure limited space low-position integral lifting support which comprises a support component, a lifting device and a plurality of embedded parts, the support component comprises a stand column, the stand column is arranged above an outer side original structural beam, and the lower end of the stand column is fixedly connected to the corresponding original structural beam through a first embedded part; the top end of the stand column is fixedly connected with a platform beam horizontally and forwards extending out of the original structural beam, an inclined strut is fixedly connected between the stand column and the platform beam, and the lifting device is installed at the foremost end of the platform beam; a rear pull rod is fixedly connected to the rear side face of the upper portion of the stand column and gradually inclines backwards and downwards, and the lower end of the rear pull rod is fixed to the original structural beam on the inner side through a second embedded part. The steel structure lifting device is stable in structure, is suitable for lifting a steel structure in a narrow space in the middle of a floor, can be detached and recycled, and provides guarantee for smooth large-span space steel structure and overall lifting.

This invention discloses an unsupported, rotatable, adjustable device for lightweight steel structure bridges and its construction method, comprising: a pier, cast into the outer side of the building structure; a construction platform, erected on the pier; a slewing bearing, installed on the pier; a support wall, erected above the building structure, one end of which extends above the construction platform; the support wall is arc-shaped and coaxial with the slewing bearing; a guide groove is formed on the inner arc surface of the support wall, the guide groove being arranged along the arc direction of the support wall; an adjustable-length connecting component, one end of which is connected to a slider sliding in the guide groove, the other end of which is hinged to the short arm end; the connecting component's length is adjusted to adjust the elevation of the long arm end; and a jacking mechanism installed on the support wall. This invention solves the problems of insufficient positioning for lifting machinery and inability to establish supports when constructing bridges over rivers, on the tops of residential buildings, or on various other structures.

This invention discloses a portable bidirectional adjustable curtain wall support device and adjustment method. The device includes a main connection unit, an adjustment execution unit, an adjustment locking unit, a curtain wall support, and a cover plate. Limiting rods are welded to embedded parts and slide into the chassis using T-shaped limiting grooves for quick positioning and fixation, eliminating the need for drilling holes or installing reinforcement bars in the main structure. The adjustment execution unit employs an eccentrically driven adjustment disc structure, combined with the elastic deformation of elastic steel sheets, to achieve independent, gapless micro-adjustment in the X and Y directions in the horizontal plane. The adjustment locking unit uses a lift-unlock-rotate-release self-locking elastic compression structure, allowing for adjustment by a single person with one hand. The cover plate is bolted to the chassis, forming a pressure-locking mechanism for the curtain wall support, creating a double-redundant anti-displacement system with the elastic self-locking of the adjustment mechanism. This invention's device can quickly and accurately complete curtain wall support displacement adjustment operations, ensuring the long-term reliability of the connection between the curtain wall and the main structure.