11results about How to "Increase anchoring force" patented technology

This invention discloses a method for constructing lateral side openings in TBM tunnels under complex geological conditions, aiming to solve the technical problems of poor safety and low efficiency in traditional construction methods under complex geological conditions. Before constructing the side opening, a three-dimensional geological model is built and a warning threshold is set. When the detected data exceeds the warning threshold, an alarm is triggered and construction parameters are adjusted. A folding sliding track equipped with excavation equipment is deployed near the TBM equipment on the side of the side opening to be excavated. Small guide pipe holes and anchor bolt holes are drilled along the outer side of the excavation outline at the designed opening location of the side opening. After installing a double-section H175 steel arch frame optimized by finite element topology, shotcrete is used to seal and form a locking structure. Once the locking structure reaches the design strength, the side opening is excavated from the inside of the locking structure using a partitioned-step coupled excavation algorithm, and unbonded anchor cables are installed at the edge arch of the excavated side opening area. This method makes the excavation of side openings in complex geological environments extremely safe and efficient.

The utility model discloses a TBM driving anchor rod positioning device, including anchor rod, the outer wall of anchor rod is provided with screw threads, and the inner chamber of anchor rod is hollow setting, the bottom welding of anchor rod has the anchor head, the outer wall of anchor head is seted up and has vertical strip through -hole, the inner chamber of anchor head is hollow setting, and the bottom setting of anchor head is concave, and the outer wall of anchor head is fixedly connected with the positioning structure. The device is applied to the positioning link of anchor rod during TBM driving, ensures that the anchor rod is in the middle, the positioning structure can prevent the anchor rod from deviating or contacting the hole wall in the grouting process, avoids forming " dry hole section " to cause grouting not to be dense, improves the uniformity of anchoring force, and the central anchor rod makes the slurry evenly wrap the pole body, forms the complete anchoring body, and the standard preparation work and operation process are the basis of grouting anchor rod construction, and through the vertical strip through -hole of anchor head and hollow setting, the grouting quality is optimized.

The utility model relates to the technical field of geotechnical engineering side slope reinforcement, disclose a kind of geotechnical engineering side slope reinforcement device, including multiple reinforcing plates, the reinforcing plate left side outer wall is fixedly connected with two connecting blocks, the reinforcing plate right side outer wall is fixedly connected with two fixed blocks, the fixed block inside is provided with installation assembly, the reinforcing plate bottom is fixedly connected with multiple tapers, the taper inside is provided with extension assembly, the installation assembly includes sliding plate, the sliding plate outer wall slidingly connects in the connecting block inside, the sliding plate outer wall is fixedly connected with two ropes, the rope is fixedly connected with limit block one on the side away from the sliding plate, in the utility model, the synergies of sliding plate, rope, clamping block and spring one, the quick splicing of reinforcing plate is realized.When installing, clamping block is automatically slid under extrusion, after being inserted in place, spring one releases potential energy to complete clamping;When removing, sliding plate can be separated by pulling.

The utility model discloses a kind of reinforced self-tapping anchorage devices of building outer wall in situ repair, it is related to the field of fastener technology, it includes anchoring sleeve pipe and anchoring bolt, anchoring sleeve pipe includes expansion section and straight section, expansion section is opened with expansion fissure along length direction, expansion section is equipped with lining boss cover, linear slit is opened with length direction on lining boss cover, support ring is equipped with on the both sides of linear slit, straight section and expansion section outer wall are provided with boss structure along circumference, anchoring bolt outside is equipped with anti-rotation rib, anti-rotation rib is sleeved on anchoring bolt, recess is opened with circumference on anti-rotation rib.The application has the effect of improving the anchoring force of screw.

This utility model relates to the field of sealing technology, specifically to a wear-resistant packing for a pumping unit. It includes a rubber substrate, with an anti-corrosion layer and a wear-resistant layer sequentially arranged from the inside out on the outer side of the rubber substrate. An upper rubber layer is bonded and sealed to the upper end of the wear-resistant layer, and an upper adhesive layer is coated on the upper end of the upper rubber layer. A lower rubber layer is bonded and sealed to the lower end of the wear-resistant layer, and a lower adhesive layer is coated on the lower end of the lower rubber layer. An insert rod is fixed inside the lower end of the rubber substrate, with its lower end penetrating the anti-corrosion layer and the wear-resistant layer and extending into the lower rubber layer. Multiple support frames are arranged inside the rubber substrate, and the support frames are fixedly connected to an elastic steel strip. The wear-resistant layer, anti-corrosion layer, and rubber substrate of this utility model form a gradient protection system. Combined with the flexible wrapping of the bonding interface by the upper and lower rubber layers, it achieves dual isolation from chemical corrosion and mechanical wear, ensuring long-term sealing integrity.

This invention discloses a method for constructing anti-slide piles using manually excavated bored piles, comprising: Step 1, measuring and positioning at a designated location, and constructing anti-slide piles at the corresponding location using manually excavated bored piles. Two rows of anti-slide piles are spaced apart along the slope's inclination direction, with several piles in each row located at the same height on the slope; Step 2, connecting any two adjacent anti-slide piles in the higher row using connecting beams, and simultaneously connecting any two adjacent anti-slide piles in the lower row using pile-slab walls to form a retaining structure; Step 3, connecting the anti-slide piles at both the higher and lower locations along the longitudinal direction of the slope using connecting beams; Step 4, anchoring the higher anti-slide piles within the slope using anchor ropes, which extend obliquely from the anti-slide piles towards the top of the slope and are taut. This invention ensures the connection strength, protective stability, and robust anchoring of the anti-slide piles.

The application discloses a rotary kiln composite lining structure and belongs to the technical field of thermal equipment. The rotary kiln composite lining is designed by a structure of a working layer, a functional layer and an anchoring structure, integrates the concepts of mechanical reinforcement and energy-saving protection, and can realize good structural stability and heat insulation performance. Through efficient reflection of radiant heat by a reflection layer, cooperative heat conduction blocking of a heat preservation layer and a heat insulation layer, resistance to corrosion and stress buffering of a protection layer, and anti-abrasion and high-temperature corrosion resistance of the working layer, a hierarchical heat protection system is formed. In combination with a quasi-flexible connection system in the anchoring structure, the rotary kiln thermal expansion stress and shear stress in the rotating process can be reduced under the premise of ensuring the connection strength, and the overall stability of the structural layer is improved. The rotary kiln composite lining provided by the application has mechanical strength and heat insulation performance, can obtain a relatively long service life, and realizes efficient energy saving of the rotary kiln.

The utility model provides a rocket power anchor. The rocket power anchor comprises a bullet of a spiral structure. The anchoring structure is detachably connected with the warhead, and the anchoring structure can stretch; the second-stage engine is detachably connected with the anchoring structure, a second-stage delay igniter capable of driving the anchoring structure to stretch is arranged at the joint of the second-stage engine and the anchoring structure, and the second-stage engine is filled with a second-stage propelling grain; the first-stage engine is detachably connected with the second-stage engine, a middle partition bin is arranged at the joint of the second-stage engine and the first-stage engine, a first-stage delay igniter is arranged on the middle partition bin, and the first-stage engine is filled with a first-stage propelling grain; the exhaust nozzle can be obliquely arranged at a certain angle, so that the rocket power anchor can rotate during movement; the lifting ring is rotationally connected to the first-stage engine; the total mass of the first-stage propelling grain is smaller than that of the second-stage propelling grain; and a pressure-bearing diaphragm is arranged on the middle partition bin.

The application discloses a self-resetting anti-seismic energy-dissipation anchor rod and an anchoring method, and belongs to the technical field of anti-seismic geotechnical engineering. The anchor rod comprises a viscous damper and an anchor rod, and the two are in a separated modular structure. The head of the viscous damper is fixed in a concrete structure through a pre-embedded part and a bolt, and the tail thereof is connected with the anchor rod body. The anchor head of the anchor rod is provided with double-layer elastic anchor pieces with concave curvature, and is reinforced in cooperation with injected anchoring slurry. During an earthquake, the high-strength spring and viscous damping liquid in the viscous damper are cooperatively energy-dissipated, so that the structural deformation and speed are effectively reduced; after the earthquake, the high-strength spring drives the anchor rod to self-reset, thereby reducing residual deformation. The application has the advantages of high anti-seismic energy-dissipation efficiency, self-resetting after the earthquake, reliable anchoring, strong applicability of the modular design and the like, and is suitable for anti-seismic reinforcement of geotechnical engineering such as tunnels and slopes.