33results about How to "Rapid Grouting" patented technology

The invention provides a method for preparing a geopolymer grouting material and a method for applying the geopolymer grouting material to static pressure grouting. Raw materials for preparing the geopolymer grouting material include steel slag, mineral slag, sodium silicate, silica fume, calcium bentonite, softened water and a composite alkali activator. The method for preparing the geopolymer grouting material comprises the steps that 1, a component A is prepared; 2, a component B is prepared; 3, a component C is prepared; and 4, the geopolymer grouting material is prepared. The method for static pressure grouting comprises the steps of 1, survey; 2, assessment; 3, pit sounding; 4, hollowing general survey; 5, deflection value check; 6, comprehensive evaluation; 7, measurement and hole arrangement; 8, drilling; 9, grouting; 10, check; 11, grouting hole sealing; and 12, recheck to complete static pressure grouting. The methods have the advantages of environmental friendliness, low viscosity, high elasticity modulus, high cohesiveness, low cost, high efficiency and high durability.

The invention discloses a pre-explosion drilling, grouting and anchoring integrated anchor rod and construction method thereof, and belongs to geotechnical engineering. The pre-explosion drilling, grouting and anchoring integrated anchor rod consists of a sectional type drilling anchor rod, a drill bit and a sectional type hollow grouting pipe, wherein the internal hollow grouting pipe is connected with a multi-section explosive pipe at the front end of the grouting pipe; a plurality of return stoppers are arranged on the tip of the front end of the grouting pipe, which is connected with the explosive pipe; and when the integrative anchor rod is drilled to reach a specified position, a drilling rod is taken back reversely, the internal hollow grouting pipe is pushed forwards, the return stoppers work, and then the drilling rod is stopped from being taken back. A detonating cord is connected with a detonator to detonate explosive sections, a rubber stopper provided with a slurry guide pipe (exhaust pipe) follows up on the end part of the drilling rod for sealing, and a supporting liner plate, a nut and a hollow drilling rod cooperate with one another on the end part; and the supporting liner plate, through which the detonating cord penetrates, is provided with a drill way, and one section of a pipeline penetrates through the drill way of the supporting liner plate. The pre-explosion drilling, grouting and anchoring integrated anchor rod has the advantages that: the anchor integrates drilling, grouting and anchoring and molded in one step; the integrative anchor rod is applied to reinforcement of laneways, pit shafts and side slopes, and temporary or permanent supporting in water control; and the construction method has a certain promotion value.

The invention relates to a high-pressure gas multistage pre-splitting grouting transformation method for surrounding rock of deep soft rock roadways. The high-pressure gas multistage pre-splitting grouting transformation method has the advantages that the surrounding rock of the deep soft rock roadways is subjected to multistage pre-splitting by the aid of high-pressure gas, special propping agent materials are added into popping agent containers when last-stage gas pre-splitting is carried out, the particle sizes of the propping agent materials are larger than those of cement particles, the propping agent materials are used for propping crack of the artificially pre-split expanded surrounding rock, the crack can be prevented from being closed again under the effect of deep high ground stress, the groutability of the surrounding rock can be improved, then the surrounding rock with the crack can be grouted and reinforced, weak surrounding rock structures and mechanical properties of the roadways can be greatly transformed, the surrounding rock of the deep soft rock roadways can be stably controlled, and difficult problems of closing of crack of existing surrounding rock of existing deep soft rock roadways, extremely poor groutability of the existing surrounding rock and poor grouting effects can be solved; the weak surrounding rock structures and the mechanical properties can be obviously transformed and enhanced, and the bearing capacity of the surrounding rock can be improved; high-pressure gas pre-splitting holes and grouting holes of the surrounding rock are combined with one another, and the high-pressure gas multistage pre-splitting grouting transformation method is easy to operate and implement in fields.

The invention discloses a construction method of a reserved grouting pipe of a tunnel vault. According to the technical scheme, the construction method comprises arranging waterproof fabrics on the primary supporting surface of a tunnel and binding secondary lining rebars; arranging a corrugated pipe with a hole in close attachment with the waterproof fabrics and enabling the corrugated pipe with the hole to penetrate a rubber bar; pouring secondary lining concrete and timely drawing the rubber bar at two ends; drawing out the rubber bar after initial setting is achieved and forming a secondary lining concrete vault grouting hole channel; grouting a reserved hole channel and enabling a vault cavity to be filled with grout after the grout passes through the small hole of the corrugated pipe with the hole. According to the construction method of the reserved grouting pipe of the tunnel vault, the grouting hole channel is reserved during tunnel construction and accordingly the grouting on the secondary concrete vault cavity can be rapidly achieved, the process of vault drilling after radar detection is omitted, the construction time is saved, the construction cost is reduced, and the construction quality of the tunnel concrete is ensured.

The invention provides a gob-side entry narrow coal pillar advanced grouting reinforcement method. The method comprises the steps that before extraction of a gob-side entry upper section working face,a row of drill holes are formed in one side of an excavated upper section entry in the extending direction of a coal pillar; the drill holes are detected through a drill hole penetrometer; accordingto obtained information data of pressure and displacement in the drill holes, the compression degrees of the coal pillar at different depths and the development condition of cracks in a coal body areanalyzed, grouting reinforcement operation can be directly conducted on the part, with the large crack development, in the coal pillar, and fracturing operation is conducted on the part, with the small crack development, in the coal pillar; fracturing operation is conducted on the part, with the small crack development, in the coal pillar through an electric pulse device; the impact wave fracturing range is observed till fracturing of all the areas, with the small coal pillar cracks, in the whole upper section entry is finished; and on the basis of original anchor net supporting of the coal pillar, grouting anchor rods are placed in the drill holes to conduct grouting reinforcement on the interior of the coal pillar. According to the method, advanced reinforcement operation of the coal pillar can be effectively achieved.

The invention discloses a mold-bag-filling-type anchor grouting device which comprises a hole opening hole sealing steel pipe (1), wall surface patterned holes (2), a constant pressure stopper A (3),a hole opening hole sealing mold bag (4), a grouting steel pipe (5), a constant pressure stopper B (6), reinforcing ribs (7), a hole bottom anchoring steel pipe (8) and a hole bottom anchoring mold bag (9). According to the mold-bag-filling-type anchor grouting device, an anchoring rod is divided into three parts of the hole opening hole sealing steel pipe, the grouting steel pipe and the hole bottom anchoring steel pipe, the mold bags, the reinforcing ribs and the wall surface patterned holes are arranged/formed, and by combining the characteristics that the mold bags are expanded during grouting and grout leakage is not prone to occurring, hole bottom anchoring and hole opening filling closing are achieved; through the wall surface patterned holes, cement grout and solidification grout are effectively grouted into loose wall rock; and thus, the grouting pressure is effectively increased, the broken loose wall rock is quickly filled, grouting liquid is prevented from being subjected to underground water erosion, and finally the firm mold-bag-filling-type anchor rod is formed, so that the engineering quality and the technical level are comprehensively improved.

The invention discloses an automatically walking grouting trolley device for subway shield construction. The automatically walking grouting trolley device for subway shield construction comprises a trolley rack and a grout storage tank arranged on the trolley rack; two ends of the trolley rack are provided with transverse pipes, the end of each transverse pipe is provided with a side convex body,the bottom end of each side convex body is provided with a walking slide base, the walking slide bases are slidably buckled on walking guide rails fixed on the tunnel ground, a rotating transverse shaft is arranged between the two side convex bodies, a walking driving gear is installed on the rotating transverse shaft, and the walking driving gear is engaged with a walking transverse rack arrangedon the tunnel ground; the outer wall of the grout storage tank is provided with a walking motor and a driving transverse shaft; and two sides of the trolley rack are provided with grouting mechanismsfor spraying out grout in the grout storage tank. The automatically walking grouting trolley device for subway shield construction is simple in structure, the whole trolley can conveniently walk backand forth automatically in a tunnel, rapid grouting can be achieved, operation is convenient and fast, and practicability is high.

The invention discloses a hollow grouting mining anchor cable. The hollow grouting mining anchor cable comprises a head steel pipe, hollow steel strands, plastic grout stopping pipes, plastic grout stopping pipe outer sleeves, hollow hexagon nuts, grouting openings, hexagon bolts, grouting pipes, grout stopping plugs, supporting plates and mining anchor cable anchorage devices, wherein a pluralityof stranded hollow steel strands are fixed to the right side of the head steel pipe; the outer sides of the hollow steel strands are sleeved with the plastic grout stopping pipes; the outer walls ofthe plastic grout stopping pipes are wrapped with the plastic grout stopping pipe outer sleeves; the hollow hexagon nuts are welded to the right ends of the hollow steel strands; the right end openings of the hollow hexagon nuts are arranged to be the grouting openings; the hexagon bolts are in threaded connection with the grouting openings; the grouting pipes are welded to the left sides of the grouting openings; and the right portions of the hollow steel strands are sleeved with the grout stopping plugs. The hollow grouting mining anchor cable has the beneficial effects of being high in strength, good in plasticity, low in relaxation value, good in straightness, high in wrapping force and integrity with resin anchoring agents and grouting liquid and the like.

The invention relates to a prefabricated vertical component and a sleeve grouting construction method thereof. The prefabricated vertical component comprises a component body of a reinforced concretestructure, wherein a plurality of grouting sleeves are pre-buried in the component body, a grouting pipe and a plurality of indicating pipes arranged on the two sides of the grouting pipe are furtherpre-buried in the component body, the two ends of the grouting pipe and the two ends of the indicating pipes extend to the bottom face and the side face of the component body correspondingly and can communicate with the outer space of the component body, and the height of the connecting positions of the indicating pipes and the grouting pipe and the side face of the component body is larger than the height of the top of the grouting sleeves. According to the prefabricated vertical component and the sleeve grouting construction method thereof, the construction work efficiency is high, and supplementary grouting can be conducted, so that the engineering safety is guaranteed.

The invention relates to a cutting, soil taking and grouting integrated sleeve pipe which is composed of an outer layer pipe and an inner layer pipe. The lower portion of the outer layer pipe is provided with a tooth port which can cut soil when rotated downwards, different types of tooth ports such as cutting teeth and grinding teeth can be selected according to geological conditions, the outer layer pipe and the inner layer pipe are connected in a buckled mode and can be separated, the lower portion of the inner layer pipe is provided with a grabbing hopper which can be closed in a grabbingmode, and the inner side of the outer layer pipe is provided with grout (liquid) jet holes capable of jetting grout or water. Soil can be cut when the sleeve pipe is rotated downwards, soil can also be taken out at the same time, slag removal is not needed, then, a series of operations of grout (liquid) jetting are carried out, the construction efficiency is improved, and the integrated sleeve pipe is novel and efficient.

The invention discloses an automatic horizontal grouting device for grouting reinforcement of a coal mine roof. Grouting is conducted in a segmented mode, and the deepest grouting effect can be achieved without excessively increasing the grouting pressure; an auxiliary grouting pipe stretches into a horizontal drill hole and can be tensioned and fixed through an outer hydraulic tensioning sleeve assembly; a grouting head stretches into the auxiliary grouting pipe and can be positioned in the auxiliary grouting pipe through an inner hydraulic tensioning sleeve; and when grouting is conducted toa certain degree and the inner hydraulic tensioning sleeve slides relatively in the auxiliary grouting pipe, that the grouting process of the segment is finished is indicated, then the outer hydraulic tensioning sleeve assembly is subjected to pressure relief, the auxiliary grouting pipe is moved outwards by a certain distance, then the grouting head is fixed through the outer hydraulic tensioning sleeve assembly and the inner hydraulic tensioning sleeve assembly again, and grouting of the outer segment continues to be conducted. The grouting capacity and the grouting effect are improved, allthe segments are grouted under the roughly same grouting pressure, and the whole grouting supporting capacity and reliability are guaranteed.

The invention relates to a thermal insulation brick fully automatic grouting production device, which includes a grouting gear, lifting gears and a conveying gear. The lifting gears are respectively installed on the two sides of the grouting gear; the grouting gear includes a main body frame, a needle drum bracket and a needle rod push rack assembly, wherein supporting seats are respectively installed on the middle part of the front end and the middle of the rear end of the main body frame; the needle bracket is installed on the upper ends of the two supporting seats, a plurality of needle drum assemblies are arranged at the upper end of the needle drum bracket, needle heads at the lower ends of the needle drum assemblies vertically penetrate through the needle drum bracket, and switchingvalves are respectively installed on the position, located on each needle drum assembly of the needle head, of the lower end of the needle drum bracket; and one sides of the switching valves are connected with a switching valve opening machine, oil cylinder assemblies are vertically installed on the supporting seats which are located on the two sides of the needle drum bracket, the upper ends of piston rods of the oil cylinders are connected with the needle rod push rack assembly, and the needle push rack assembly is connected with needle rods at the upper end of the needle drum assembly. According to the thermal insulation brick fully automatic grouting production device, grouting production can be finished quickly, accurately and fully automatic, the production efficiency is improved greatly, and the manual cost is lowered.

The invention relates to the technical field of tunnel reinforcement, in particular to light low-pressure grouting equipment for tunnel rapid grouting reinforcement, which comprises a rack, a hopper, a conveying unit and a grinding unit, the hopper is arranged at the upper end of the rack, the conveying unit and the grinding unit are mounted in the rack, and the grinding unit is positioned above the conveying unit; an existing grouting machine has the following problems that a common grouting machine cannot remove residual slurry in the common grouting machine in time, so that the solidified slurry can form residues, and the conveying efficiency of the grouting machine is easily influenced; a traditional grouting machine cannot grind slurry, and therefore the using effect of the slurry doped with particles can be affected. According to the invention, residual slurry in the device can be scraped in time, so that the conveying efficiency of the device is prevented from being influenced by the residues; before grouting, slurry can be subjected to multi-stage grinding treatment, and therefore the situation that the using effect of the slurry is affected due to the fact that particles are left in the slurry can be avoided.

The invention discloses an internal-connection-type grout-stopping plug for grouting, and a grouting method. The internal-connection-type grout-stopping plug comprises a grout-stopping bolt, a grout-stopping cap, a connecting device and a triangular frame vertical rib; the grout-stopping bolt is of a cavity structure comprising a grout inlet end and a gout outlet end, wherein the two ends of the cavity structure communicate with each other, the cavity is used for delivering grout, the grout-stopping bolt is used for being arranged in a grouting hole, the grout inlet end is located outside the grouting hole, and the gout outlet end is located in the grouting hole; the grout-stopping cap is a thin cylinder, the diameter of the grout-stopping cap is greater than the inner diameter of the grout outlet end, the grout-stopping cap is mounted at the grout outlet end of the grout-stopping bolt, and the grout-stopping cap is opened during grouting and closed when grouting is completed; the connecting device is detachably connected with one wall surface of the grout-stopping cap and located in the cavity of the grout-stopping bolt, the triangular frame vertical rib is axially arranged in the cavity of the grout-stopping bolt and connected with the connecting device, under the effects of the pressure of grout in the cavity of the grout-stopping bolt or the pressure of the grouting hole, the triangular frame vertical rib is matched with the connecting device to drive the grout-stopping cap to be correspondingly opened or closed. By using the internal-connection-type grout-stopping plug, automatic grout stopping can be effectively achieved.