9results about How to "Does not affect construction" patented technology

The utility model discloses a V-shaped transmission assembly capable of preventing side leakage of gravel with water. Comprising a conveying belt and a supporting frame, at least two supporting legs are arranged at the lower end of the supporting frame, a V-shaped mounting port is formed in the upper end of the supporting frame, a horizontal mounting station is defined in the middle of the mounting port, and inclined plane mounting stations are defined at the two side ends of the mounting port. The horizontal mounting station and the inclined plane mounting station are provided with rolling shafts used for bearing the conveying belt through damping bases. By arranging the horizontal installation station and the inclined plane installation station at the installation port, the conveying belt placed in the installation port is in a V shape, so that the requirement for conveying gravel is met, meanwhile, a damping seat is arranged below each rolling shaft, and a sliding groove, a sliding block and a damping spring are arranged on the damping seats, so that in the conveying process, the conveying belt is not prone to falling off in the conveying process. The damping effect is achieved by means of telescopic buffering of the damping springs, and therefore the problems that gravel falls out and muddy water splashes are avoided.

The invention discloses a waterproof structure for the joint of underground new and old concrete structures. The waterproof structure comprises a T-shaped rubber waterstop, waterproof caulking paste, a new and old structure connecting assembly, a waterproof layer, a brick blank film and an impervious material. The T-shaped rubber waterstop is arranged at the junction of a newly-built concrete structure and an original concrete structure in the vertical direction and the horizontal direction and comprises a horizontal waterstop body and a vertical waterstop body, and one end of the horizontal waterstop body extends into the junction of the newly-built concrete structure and the original concrete structure and is attached to a new and old structure connecting assembly at the junction. The outer end of the vertical waterstop is of an arc-shaped structure which is bent inwards, and the outer end of the horizontal waterstop is of an arc-shaped structure which is bent downwards; the outer side of the T-shaped structure is covered with an anti-seepage material; the end, away from the T-shaped rubber waterstop, of the new and old structure connecting assembly is filled with a waterproof caulking material. The underground water seepage path can be effectively cut off, the overall waterproof performance of the structure is improved, the strength of the connecting part is improved, and construction is convenient.

The utility model provides a fixing structure of a vertical climbing ladder for steel structure installation. The fixing structure comprises a straight square pipe fixedly connected with a steel structure, an L-shaped square pipe fixedly connected with the ladder and a plug pin. A notch is formed in the upper part of one side, facing the crawling ladder, of the straight square tube, and bolt holes are formed in opposite positions of the upper parts of two side walls; the free end of the L-shaped square tube is downwards inserted into the straight square tube from the notch; the bolt penetrates through the bolt hole to limit the L-shaped square tube above the L-shaped square tube; and the end part of the bolt is connected with the crawling ladder through a safety rope. According to the utility model, the ladder stand can be quickly and safely mounted and dismounted without influencing the construction of the next working procedure through the measures of square tube insertion, bolt limiting, safety rope arrangement and the like, so that the safety is ensured, the construction progress is also ensured, and the time and the risk of high-altitude operation are reduced.

The application discloses a pre-splitting anchor injection deformation control structure and method for high ground pressure rock roadway excavation, which comprises a roadway penetrating in a rock mass, two pre-splitting rock zones symmetrically arranged on the two sides below the roadway, the pre-splitting rock zones being arranged along the length of the roadway, the pre-splitting rock zone being a rock zone full of gravel and densely distributed cracks, the side wall surface of the roadway being sequentially provided with a concrete wall protection layer and a concrete anchor spraying layer, and a plurality of high-strength anchor rods, a lower arch part anchor cable, a high-pressure grouting anchor cable and an arch nest reinforcing grouting anchor cable being perpendicularly arranged in the inner wall of the roadway and extending into the rock mass, the application combines roadway support reinforcement and roadway blasting pressure relief two roadway reinforcement means, the pre-splitting rock zone is advanced along with the advancing face construction in the construction process, the influence of pre-splitting rock zone construction on support is avoided, the design of the arch nest reinforcing grouting anchor cable can secondarily reinforce the integrity and effectiveness of the roadway support system, and the method can make the roadway omit conventional steel support and other measures.

The utility model discloses a snapping type pre-embedded wall connecting piece which comprises a bottom plate, a threaded conical rod, a shear force rod, a steel pipe fitting and a nut, one end of the threaded conical rod is a conical column body with the diameter gradually increasing, and the other end of the threaded conical rod is a screw rod with the diameter smaller than the maximum diameter of the threaded conical rod. The wall connecting piece is simple and small in structure, not prone to being lost, low in cost, convenient to install, easy to pre-embed and free of influence on follow-up wall construction, the wall connecting piece of a metal structure can bear strong impact and vibration, and the wall connecting piece of the metal structure can be used for connecting the wall connecting piece of the metal structure to the wall connecting piece of the metal structure to the wall connecting piece of the metal structure to the wall connecting piece of the metal structure. The conical structure does not need to be provided with a protective sleeve, direct strong drawing is carried out, so that the shearing force of the shearing force rod can be recycled after being damaged and broken, the consumable cost is greatly reduced, the drawing resistance not smaller than the sliding resistance of the fastener can be met by reasonably designing the size, the installation depth is small, the use function of reinforced concrete is not affected, and repairing is easy.

The present invention discloses a method for freezing mining of coal pressure at the end wall of an open-pit mine, which includes constructing a frozen soil wall: the frozen soil wall includes a protective frozen soil wall and a supporting frozen soil wall; pursuing mining; and continuing pressure walling: the pressure walling is divided into initial pressure walling and comprehensive pressure walling. The present invention utilizes freezing to change the mechanical properties of the rock mass, improves the strength of the end wall, and provides effective support for end wall mining, and is particularly suitable for open-pit coal mines in cold areas with large water content at the end wall. The double-layer frozen soil wall design not only strengthens the freezing effect, but also provides alternating cover for pressure walling in stages, thereby reducing the difficulty of on-site construction management. The freezing equipment and cold transfer medium are common in the market, easy to obtain, easy to operate, low in solution cost, and good in effect. The low ambient temperature in the northern part of China in winter further reduces the cost of the solution. Pursuit mining ensures timely mining of the coal pressure at the end wall, while realizing the recovery of the refrigeration equipment. Implementing pressure walling in stages can not only ensure the efficiency of pressure walling, provide support force for the end wall in time, but also reduce the difficulty of on-site construction.

The utility model discloses a kind of copper water stop protection devices of rock-fill dam, including multiple mounting seats and protective cover, each the mounting seat is supported on the dam face of rock-fill dam, and all be located on the side of copper water stop on dam face, each the mounting seat is arranged along the gradient direction of dam face with interval, the uppermost mounting seat is fixed on the top surface of rock-fill dam, each the protective cover is respectively installed on adjacent mounting seat, and each the protective cover is sequentially arranged along the gradient direction of dam face, and cover and set in the upper of copper water stop.This rock-fill dam copper water stop protection device does not damage the dam face structure of rock-fill dam, does not affect pouring concrete construction and dismounting convenient of other side of copper water stop.

The invention belongs to the technical field of underground engineering construction, and particularly relates to application of a composite low-friction coating on the outer surface of a jacking pipe, in particular to a jacking pipe jacking construction method based on the composite low-friction coating. The composite low-friction coating comprises an adhesive layer and a coating layer, wherein the adhesive layer is adjacent to the outer surface of the jacking pipe; the solid or gel lubricating layer is located on the outer side of the adhesive layer, is the outermost exposed layer of the composite low-friction coating and is used for reducing friction between the jacking pipe and a soil body in jacking construction of the jacking pipe. A traditional jacking pipe joint is improved, the composite low-friction coating is arranged on the outer surface of the jacking pipe joint, friction between the jacking pipe joint and a soil body is remarkably reduced when the jacking pipe joint is jacked in, thixotropic slurry does not need to be used for lubrication and resistance reduction, and therefore the construction link of slurry replacement is eliminated.

The utility model relates to a large foundation pit construction suspension cable type pipeline protection device which comprises tower column assemblies, supporting column pier assemblies, suspension cable assemblies, sling assemblies and tie pier column assemblies, and the left ground and the right ground of a foundation pit are each provided with two supporting column pier assemblies and two tie pier column assemblies. Each tower column assembly is fixed between the two corresponding supporting column pier assemblies on the same side. The suspension cable assembly comprises a suspension cable and an inhaul cable, and the suspension cable is installed between the tower column assemblies on the left side and the right side of the foundation pit; the inhaul cables are connected between the corresponding tower column assemblies and the corresponding tie pier column assemblies on the same side of the foundation pit. A plurality of sling assemblies are installed between the front suspension cable and the rear suspension cable and comprise slings, cable clamps, distribution beam lug plates and distribution beams, the distribution beams are connected with the slings through the distribution beam lug plates, and the slings are connected with the suspension cables through the cable clamps. When a foundation pit is constructed, in-situ protection can be carried out on the pipeline, construction in the foundation pit is not affected, the pipeline does not deform greatly, and the influence of construction on the pipeline is controlled to the maximum extent.