46results about How to "Fast grouting" patented technology

The invention discloses an autoignition coal gangue flow slope extinguishment and steadiness comprehensive treatment technology, and belongs to the field of treatment of mineral product waste and ecological environment recovery. The autoignition coal gangue flow slope extinguishment and steadiness comprehensive treatment technology comprises the steps that shallow-hole curtain filling is adopted, and after dedicated grouting pipes (4) which are preset are regularly planted into a slope body of a coal gangue flow slope and grouting is carried out, and steel wire ropes (9) are used for carrying out net-shaped connection on ground surface nodes (5) of the grouting pipes (4). The effect of steel rib piling and the effect of grid connecting piling can be achieved, the effect of solidification grouting or the effect of curtain grouting can be achieved, flow of air and water in the slope body of the coal gangue flow slope can be effectively stopped, the chimney effect is eliminated, when evaporation of water is received, cooling extinguishment is preferentially carried out, a curtain is solidified to block the air and prevent fire, and can achieve the effect of preventing a forward landslide, the foundation is laid for later-stage surface layer ejection grouting blocking and soil dressing vegetation recovery, and the autoignition coal gangue flow slope extinguishment and steadiness comprehensive treatment technology is good in enablement and easy to operate, can ensure that ecological environment comprehensive treatment of the coal gangue flow slope can be achieved fundamentally and rapidly, and is beneficial to human and the society.

The invention discloses a fissure-contained rock soil stratum prestressed anchor cable grouting and anchoring construction method. Multiple prestressed anchor cables uniformly distributed on the same one plane are adopted to reinforce a slope to be reinforced; the method comprises the following steps: (1) the rock mass joint fissure development degree of each rock stratum is determined; (2) the lengths of anchoring sections and the hole port positions of anchor cable holes are determined; the prestressed anchor cables include anchor cable bodies, primary grouting pipes and secondary grouting pipes; anchoring tools are mounted at the back ends of the anchor cable bodies; and the anchor cable bodies include multiple steel strands; and (3) the prestressed anchor cables are grouted and anchored: when any one prestressed anchor cable is grouted and anchored, the construction includes the steps of drilling, placement of the anchor cables, normal-pressure grouting, high-pressure grouting, tensioning of the anchor cables and anchor sealing. The method is simple in steps, reasonable in design, convenient to construct, high in construction efficiency and excellent in use effect, and can conveniently and quickly finish the reinforcing process of the slope to be reinforced; and the adopted prestressed anchor cables are low in cost and higher in anchoring force, and can effectively reinforce the slope to be reinforced.

The invention discloses an advance support fast construction method in shallow tunnelling loose pebble bed. A guide rail type independent rotary rock drill and a triangle drilling rig are adopted, and a self-advancing hollow grouting anchor bar is adopted to drive the advance support rod body; multi-hole spacing grouting is adopted, and appropriate double grout matching is selected. The invention has the beneficial effects that: part of pebble can be impacted to be crushed or be extruded into a hole, the problems of shifting and aligning of heavy duty drill in a narrow underground tunnel are effectively solved; not only grouting speed is increased, but also grout diffusion can be better controlled; the method can adapt loose pebble stratum well, not only perfect diffusion effect of grouting can be achieved, but also single-hole long-distance diffusion can be controlled, and reinforcing in unpermitted range can be achieved.

The invention relates to a given force splitting and grouting reinforced type composite foundation construction method which is used for reinforcing the foundation of hydraulic fill sand soil and mixed fill soil; the given force effect is continuously exerted on the soil body by a borer and sleeve type high-pressure grouting equipment; a grouting pipe is inserted to a straight hole position or a slant hole position; a prepared granular mixed grout is poured to the grouting pipe for a veined splitting continuous grouting in order that the grout can form a vein-dissevering shaped and beaded shaped grout-coated concretion body and a pilaster-shaped grout-coated concretion body in a proper part of the soil body and form an uneven composite foundation with the soil body; for the reinforcement of the hydraulic fill sand soil, the standard of the given force is controlled in a scope of 0.78 to 0.92; for the reinforcement of the mixed fill soil; the standard of the given force is controlled in a scope of 0.82 to 0.94; the given force control standard is utilized to achieve the need of the compactness of the reinforced type grouting composite foundation.

The invention is a vertical-tube vacuum-precompression bidirectional slip casting method, comprising the steps of making hole, installing seal slip casting system, sealing orifice, normal-pressure slip casting, prevacuumizing, vacuum slip casting, reverse slip casting, and so on; the seal slip casting system includes anchor hole, anchorage cable, orifice grout sealer, vacuum pump, slip casting pump, sealing plate, slip casting tube and vacuum tube, the orifice grout sealer situated at the orifice of the anchor hole, the sealing plate situated on the end surface of the orifice, epoxy resin poured between the sealing plate and the orifice grout sealer, the orifice grout sealer being bowl-structured, and one or more orifice grout sealers linked in series in the same or counter direction and closely fitting anchor hole wall, the vacuum tube passing through the sealing plate and the orifice grout sealer to reach the top of the anchor hole, and the slip casting tube passing through the orifice grout sealer and 30-40cm higher than the internal end surface of the orifice grout sealer.

The invention relates to a complex geological region intelligent grouting system and method. The method comprises the steps that the permeability coefficient of each grouting hole inside a region is obtained through water permeability detection, the best grout density suitable for each grouting hole is determined, and a sensor and a control valve are installed on each pipeline for performing real-time control to achieve the intelligent grouting effect; by controlling thick grout and thin grout of different flow ratios to be mixed, the best grout density suitable for each grouting hole is prepared to achieve the best grouting effect; a corresponding grouting end final pressure is provided, when the grouting pressure of a certain grouting hole in the middle of the region is increased suddenly, it is considered that the grouting hole design region is filled with grout, grouting of the hole is ended, and when all the grouting holes inside the target region reach the grout end final pressure, grouting of the region is finished. According to the method, intelligent grouting under complex geological conditions is achieved, the automatic degree is high, the roadway grouting speed can be greatly increased, the construction efficiency is high, and the construction efficiency and quality can be ensured.

The invention provides a self-propelled tunnel grouting trolley. The self-propelled tunnel grouting trolley comprises a rack, a platform, a main girder, a traveling mechanism and lead screw lifting jacks; the rack is an open-spandrel framework and is arranged on the traveling mechanism; the main girder is arranged on the rack; the platform comprises a working platform and lower platforms; the working platform is arranged on the main girder; the lower platforms are respectively arranged under the working platform at the two sides of the rack along the direction of a tunnel; one ends of the lower platforms are vertically fixed on the rack, the upper sides of the end parts of the other ends of the lower platforms are connected with the main girder through first supports, and the lower sides of the end parts of the other ends of the lower platform are connected with the rack through second supports; the two side end parts of the working platform and the two side end parts of the lower platforms are connected on the rack through inclined struts; the lead screw lifting jacks are symmetrically arranged at the two sides of the working platform and the lower platforms; and the self-propelled tunnel grouting trolley has the advantages of being reasonable in structure, low in cost, capable of solving the traffic problem in the tunnel, realizing the synchronization of grouting, transportation and other operations, meeting the requirements of the engineering construction of diversion tunnels with large-sized cross sections and being rapid and efficient in grouting operation and capable of ensuring the construction period.

The invention discloses a grouting pipe and belongs to the technical field of building construction. The grouting pipe comprises a tapered plug, a connecting rod and a grouting pipe body which are sequentially connected, one end of the connecting rod is fixedly connected with the tapered plug, the other end of the connecting pipe extends into the grouting pipe body from a pipe orifice of the grouting pipe body, a chuck is fixedly arranged at the tail end of the connecting rod located in the grouting pipe body and movably clamped in the pipe orifice, a plurality of first through holes are reserved on the chuck and are all communicated with the pipe orifice, and a plurality of second through holes are reserved on the pipe wall of the grouting pipe body. The grouting pipe is capable of solving the problems of low grouting speed and slurry diffusion nonuniformity, and is simple in structure and convenient to manufacture.

The invention relates to a full-anchor grouting anchor rod and an anchoring method thereof, and belongs to the technical field of anchor rod supporting. The full-anchor grouting anchor rod specifically comprises an anchoring section, a grouting section and a rod body. Two limiting blocks are arranged on the rod body, and the anchoring section and the grouting section are bounded by the limiting blocks. The anchoring section is used for solidifying the rod body in a drill hole, and the grouting section is used for grouting the drill hole. An inverted nail is arranged on the rod body, an inner threaded rod is arranged in the rod body, and a steel pipe is arranged outside the rod body. When the full-anchor grouting anchor rod is used, the anchoring of an anchoring agent is completed firstly,then anchorage device pre-tightening is completed, and finally grouting is conducted. According to the full-anchor grouting anchor rod and the anchoring method thereof, a common solid anchor rod and the grouting function are combined together, and full-anchor grouting is achieved through the connection of the anchoring section and the grouting section; and roadway surrounding rock can be activelysupported in time, the stress state of the roadway surrounding rock is improved, the bearing capacity of the surrounding rock is fully exerted, and the stability of the roadway surrounding rock in a high-stress environment is ensured.

The invention provides a prestressed anchor cable structure and a one-time grouting construction method of a prestressed anchor cable. The prestressed anchor cable structure comprises an anchor cablehole formed in a soil layer; the anchor cable hole is internally provided with an anchor cable and a grouting pipe, wherein the grouting pipe and the anchor cable are arranged at an interval, and thetail part of the anchor cable protrudes from the anchor cable hole; the anchor cable is a wire harness composed of a plurality of steel strands; a plurality of steel pipes arranged at intervals and side by side are arranged in a section of an anchoring section, the steel pipes are coaxially arranged, the steel strands are arranged along the outer wall of the steel pipes so that the steel strands can be isolated one another, and first fastening ring for fastening the steel strands to the steel pipes are arranged on the peripheries of the steel strands; and the steel strands between every two steel pipes are subjected to bundling independently and the peripheries are fastened by second fastening rings. The grouting pipe and the anchor cable exist independently of each other, so that the anchor cable is buried in slurry conveniently during the subsequent grouting, and the problem that grout needs to be supplemented due to shrinkage of the slurry due to the fact that the grouting pipe is damaged and the grouting pipe is buried in the slurry is solved.

The invention discloses a method for reinforcing a fault fracture zone through single-shield double-mode TBM advanced grouting. The method comprises the steps: advanced drilling equipment is mounted on a rotating disc of a TBM assembly machine; advanced drilling is conducted through one or more hole positions in eight horizontal holes and fourteen oblique holes of a TBM; advanced grouting is conducted according to the drilling situation; and grouting reinforcing and hole sealing are conducted. The tunnel face fracture zone can be quickly subjected to grouting reinforcing, during operation, the former holes can be subjected to grouting reinforcing when the hole positions are drilled, thus the construction time is shortened greatly, manpower is saved, and the construction efficiency is high; and during construction through a mechanical method, matched grouting reinforcing equipment is used, the equipment cycle mounting and debugging time can be reduced greatly, the construction efficiency is improved, under an equipment reserved hole, a soil body of the fault fracture zone can be reinforced at the maximum range, and thus the method is worthy of being popularized in the EPB and TBM tunneling fault fracture zone.

The invention discloses a coal mine underground deep hole quick sealing and grouting device and belongs to the technical field of coal mine underground grouting and hole sealing. The grouting device is high in engineering timeliness and grouting speed and large in diffusion radius and can achieve the objective of single-hole sectional continuous grouting. A one-way valve joint is of an internal thread structure with a forward thread at one end and a reverse thread at the other end, the reverse thread of the one-way valve joint is connected with the front end of a grouting central pipe, a sealing cover is hermetically mounted at the rear end of the grouting central pipe in a sleeved manner, a top cap, a turnbuckle, a one-way valve and a rubber sleeve are sequentially and fixedly mounted onthe outer wall of the grouting central pipe in a sleeved manner, the front end of the one-way valve is abutted against the top cap and the turnbuckle, each of two ends of the rubber sleeve is clampedand shaped through an iron core and an iron loop, an upper iron core on the rubber sleeve is fixed on the grouting central pipe, a lower iron core movably sleeves the grouting central pipe, and an inlet of the one-way valve is communicated with the inside of the grouting central pipe while an outlet of the same is communicated with the rubber sleeve.