4results about How to "Guarantee support safety" patented technology

This utility model discloses a prefabricated composite slab support structure, belonging to the field of prefabricated composite slab support technology. One end of the support structure body is detachably connected to a precast beam. A steel beam is fixedly installed on the surface of the precast beam, and a fastener is fixedly installed on the surface of the steel beam. The support structure body includes a support pipe, one end of which is fixedly welded with a reinforcing component. One end of the reinforcing component is movably connected to the side of the precast beam. An embedded part is fixedly connected to the side of the precast beam, and the surface of the embedded part is movably connected to the surface of the steel beam. This prefabricated composite slab support structure, through the embedded part, connecting block, and fixing part, allows for rapid assembly of the support pipe and the precast beam, increasing support strength and improving work efficiency. Furthermore, the setting of limiting blocks, clamping grooves, and support plates increases the contact area between the precast composite slab body and the beam, thereby increasing the support area and ensuring the support safety of the precast composite slab body.

This utility model relates to the technical field of mine support systems, specifically disclosing a hydraulic support for a retreat channel. It includes a base, a first linkage support, a second linkage support, and a third linkage support. The base is fixedly installed on the ground of the retreat channel and hinged to one end of the first linkage support. The other end of the first linkage support is hinged to one end of the second linkage support. The second linkage support is connected to the base via a second hydraulic support, and its other end is hinged to the third linkage support. The third linkage support is located on the lower side of the top surface of the retreat channel and is connected to the base via the first and fifth hydraulic supports. This hydraulic support for a retreat channel, through its telescopic and deformable structure, can automatically control its extension and contraction and support the retreat channel. It can be adjusted according to different construction needs, effectively improving construction efficiency. It solves the problems of existing retreat channel supports requiring on-site assembly and having low retreat efficiency.

The invention relates to a foundation pit slope supporting structure capable of being completely recycled and reused and a construction method. The foundation pit slope supporting structure comprises a plurality of supporting units and ground anchors used for fixing the supporting units to a foundation pit slope. The supporting unit comprises a supporting bottom plate; an assembly structure is arranged on the supporting bottom plate; the assembling structure comprises a buckle plate arranged opposite to one side face of the supporting bottom plate and a baffle arranged on the side, opposite to the buckle plate, of the supporting bottom plate. The baffle and the supporting bottom plate are arranged at intervals, and a drainage groove is formed between the baffle and the supporting bottom plate. Mounting grooves are formed between the buckle plate and the supporting bottom plate at intervals; when the adjacent supporting units are assembled, the baffles are arranged in the mounting grooves to form non-fixed connection; the middle of the supporting bottom plate is further provided with a rivet receding hole used for installing a rivet. Through the recoverable design of the supporting units and the anchor nails, materials are recycled, water pressure generated by rainwater is dredged in time through the drainage grooves in the assembly structure, and the situation that a supporting system is damaged due to water pressure accumulation of a supported soil slope is avoided.

The invention provides a bent frame vertical rod arrangement method which comprises the following steps: setting a single reference modulus for a plate structure, and setting a double reference modulus for a beam structure; based on the reference modulus system, fully-covered standardized grids are generated in an under-plate supporting area and a beam bottom supporting area respectively; according to a preset under-plate vertical rod target distance, executing first point extraction operation on nodes of the under-plate standardized grid; determining the row number mode of the vertical rods according to the width characteristics of the beams, determining the distance type of the vertical rods by combining the section characteristics of the beams, and executing second point extraction operation on the nodes of the beam bottom standardized grid; integrating the arrangement positions of the vertical rods below the plate and the arrangement positions of the vertical rods at the bottom of the beam, checking the distance between the vertical rods below the plate and the vertical rods at the bottom of the beam, and if the distance exceeds a preset threshold value, additionally arranging supplementary vertical rods in a distance over-limit area to form a final arrangement scheme of the vertical rods of the framed bent. By means of the method, standardization, high efficiency and precision of vertical rod arrangement are achieved, and technical support is provided for construction.