6results about How to "Guarantee support safety" patented technology

The invention relates to the technical field of underground engineering foundation pit support, and discloses a vertical anchoring type reinforced double-row pile support, the structure is mainly composed of front-row support piles, rear-row support piles, vertical anchor cables, a coupling beam, a coping concrete plate and a crown beam, the anchor cables are perpendicular to the ground and arranged between the rear-row support piles or in the rear-row support piles in a driving mode; a cavity needs to be reserved when the vertical anchor cables are driven into the top beam between the piles, PVC pipes need to be embedded in the piles when the vertical anchor cables are driven into the piles, anchor heads of the vertical anchor cables are anchored on the top beam and form a whole with the top beam, an adjusting well is arranged on the left side of the back-row supporting piles, two rectangular plates are fixedly connected to the inner wall of the adjusting well, and a bearing is fixedly connected to the inner wall of each rectangular plate. The inner ring of each bearing is fixedly connected with a rotating shaft; a steel frame supporting body structure is not needed, and the supporting structure is a cantilever type supporting structure and has good adaptability.

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 present invention relates to the technical field of building engineering, and specifically to a deep foundation pit support structure and construction method; the technical scheme adopted is: comprising a plurality of vertically arranged support piles and anchor piles, a retaining body is built between two adjacent support piles, the anchor piles are fixedly connected to the support piles by anchor rods, and the length of the anchor piles is greater than the depth of the deep foundation pit. The present invention builds anchor piles in the earthwork around the deep foundation pit, and then connects the anchor piles with the support piles in the deep foundation pit by anchor rods, and the two sides of the retaining body are connected to the support piles, so that the pressure of the earthwork and groundwater on the support piles and the retaining body is transmitted to the anchor piles, which can prevent the earthwork of the deep foundation pit wall from collapsing and ensure construction safety; there is no need to build support beams in the deep foundation pit, avoid affecting the foundation layout of the building, earthwork excavation and transportation, and ensure construction efficiency; and there is no need to dismantle after the construction is completed, avoiding wasting working hours and the potential safety hazards caused by dismantling the support structure.

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.