35results about How to "Smooth grouting" patented technology

The invention discloses a sewage pipeline internal plugging and external grouting construction method. The construction method sequentially includes the following steps that firstly, pipeline internal plugging is performed; secondly, grouting holes are drilled, and cement slurry backfill grouting is performed. In the first step, pipe body leakage points of a sewage pipeline and the peripheries of the leakage points are subjected to chiseling, cleaning and washing, chiseling reaches the concrete surface of the sewage pipeline in the aspect of depth, and then plugging materials are used for compact filling. In the second step, a drilling machine is used for drilling a row of drill holes in each of the soil layers of the left side and the right side of the sewage pipeline, and the drill holes serve as the grouting holes; a row of drill holes are drilled in a soil layer above the center line of the sewage pipeline and serve as the grouting holes; grouting materials are added into a high-speed stirrer to be evenly stirred, and a grouting pump is started to start grouting when the fluidity meets the grouting requirement. By means of the method, compared with a traditional mode that a lining pipe is used, cost is greatly saved, the practical available pipe diameter of the sewage pipeline is not shrunk, and stratum stress is prevented from damaging the sewage pipeline.

The invention discloses a prefabricated concrete post-grouting pile, which comprises a post-grouting pile body, a steel cage skeleton, a flange, a post-grouting groove, a post-grouting pipe, a grouting hole and a pile bottom filler, wherein the steel cage The frame includes longitudinal ribs and surrounding ribs, flanges are welded at one or both ends of the frame, at least one post-grouting pipe runs through the center or side of the frame or both positions, and one end of the post-grouting pipe A grouting hole is provided, the grouting hole is located in the rear grouting groove, and the rear grouting groove is arranged on the rear grouting pile body. During construction, after the above-mentioned post-grouting pile sinks, immediately inject cement slurry or powder slurry with a specific surface area of ​​2500~6500kg / cm2 into the post-grouting pile body through the grouting pipe to ensure that the grouting slurry is compatible with the soil around the pile. The layers are fully bonded. The invention can improve the joint resistance of rock and soil between the soil and the pile, further exert the self-bearing capacity of the pile, reduce the number of piles used, and reduce the engineering cost.

The invention relates to the field of decoration engineering, in particular to a ceramic tile thin pasting method layer structure and a construction process thereof. The ceramic tile thin pasting method layer structure comprises a base layer, a ceramic tile adhesive layer and ceramic tiles, all of which are sequentially arranged, a disposable base is placed between every two adjacent ceramic tiles, wedges are inserted onto the disposable bases, a cross-shaped positioning frame is mounted at a cross-shaped gap among the four adjacent ceramic tiles, and an avoiding hole is formed in the center position of the cross-shaped positioning frame. The ceramic tile thin pasting method layer structure has the effect of effectively solving the problem of hollowing below the end corners of the ceramictiles.

The invention discloses a temperature measurement and cooling grouting device for coal piles, which comprises an outer-layer rounded truncated body, an inner-layer rounded truncated truncated body and a self-moving heat pipe. The top of the rounded truncated truncated body is an open structure, the bottom of the rounded truncated truncated body is provided with an outer truncated truncated body bottom plate, the top of the inner-layer truncated truncated truncated body is provided with an inner-layer truncated truncated body top plate, and the bottom is provided with an inner-layer truncated truncated body bottom plate, and the lower end of the self-moving heat pipe passes through the inner layer The top plate of the round table extends into the middle and lower part of the inner round table; the outer side walls of the outer round table are provided with fins, a plurality of thermocouples are installed on the fins, and a plurality of outer round round tables are opened on the outer round table. For the slurry outlet, the inner-layer rounded table body is provided with a plurality of slurry outlet ports of the inner-layer rounded table body, and a grouting system is arranged on the inner-layer rounded table body. The invention also discloses a coal pile temperature measurement and cooling grouting system. The invention can monitor the temperature of the coal pile in real time, can cool the coal pile through the self-transfer heat pipe, can accurately cool the coal pile through grouting, and has a good cooling effect.

The invention discloses a freezing pipe injected grout non-return device which is provided with an outer pipe and an inner pipe arranged in the outer pipe. A lower end sealing plate for simultaneously sealing the lower end of the outer pipe and the lower end of the inner pipe is arranged at the lower end of the outer pipe and the lower end of the inner pipe, a spring and a ball arranged on the spring are arranged in the inner pipe, an upper end sealing plate is arranged at the upper end of the outer pipe, a grout outlet matched with the ball is formed in the center of the upper end sealing plate, the outer pipe is provided with grout overflowing holes and a rubber sleeve for plugging the grout overflowing holes, and the upper end and the lower end of the rubber sleeve are provided with rubber sleeve fixing rings respectively. The freezing pipe injected grout non-return device is used for freezing hole pipe fixing water sealing processing, the construction technology of pipe fixing water sealing processing can be simplified, the requirements for construction devices and the construction technology can be reduced, the construction efficiency can be improved, the construction cost can be saved, and the construction quality can be guaranteed.

The invention discloses a secondary lining vault anti-disengaging device and a construction method. According to the anti-disengaging device, a secondary lining is arranged below a primary lining of the device, a lower-layer reinforcing mesh and an upper-layer reinforcing mesh are arranged in the secondary lining, a bottom formwork is arranged below a next-section secondary lining and is in lap joint with a previous-section secondary lining, an end formwork is arranged in front of the next-section secondary lining, a horizontal grouting pipe I and a horizontal exhaust pipe I are arranged belowthe primary lining, small holes are punched in the peripheries of the horizontal grouting pipe I and the horizontal exhaust pipe I and are wrapped with filter cloth, 3-6 detection pipes are arrangedalong the central axis of the secondary lining of each section, the tops of the detection pipes are 12 cm lower than the surface of the primary lining, and the detection pipes penetrate into positioning sleeves fixed on the upper-layer reinforcing mesh and the lower-layer reinforcing mesh. According to the anti-disengaging device, tunnel secondary lining vault concrete disengagement can be prevented, and the secondary lining construction quality is improved.

The present invention relates to the technical field of drilling rig grouting, and specifically discloses a grouting control method, which includes: obtaining the current formation cement slurry pressure data in real time; comparing the current formation cement slurry pressure data with a preset cement slurry pressure value And obtain the comparison result; generate a control signal according to the comparison result, and the control signal is used to control the actuator to perform cement slurry injection, suck out excess cement slurry or stop cement slurry injection. The invention also discloses a grouting control device and system. The grouting control method provided by the invention can ensure the smooth progress of grouting, realize intelligent control, and avoid the problems of insufficient grouting or excessive pressure grouting in the prior art.

The invention discloses a sewage pipeline internal plugging and external grouting construction method. The construction method sequentially includes the following steps that firstly, pipeline internal plugging is performed; secondly, grouting holes are drilled, and cement slurry backfill grouting is performed. In the first step, pipe body leakage points of a sewage pipeline and the peripheries of the leakage points are subjected to chiseling, cleaning and washing, chiseling reaches the concrete surface of the sewage pipeline in the aspect of depth, and then plugging materials are used for compact filling. In the second step, a drilling machine is used for drilling a row of drill holes in each of the soil layers of the left side and the right side of the sewage pipeline, and the drill holes serve as the grouting holes; a row of drill holes are drilled in a soil layer above the center line of the sewage pipeline and serve as the grouting holes; grouting materials are added into a high-speed stirrer to be evenly stirred, and a grouting pump is started to start grouting when the fluidity meets the grouting requirement. By means of the method, compared with a traditional mode that a lining pipe is used, cost is greatly saved, the practical available pipe diameter of the sewage pipeline is not shrunk, and stratum stress is prevented from damaging the sewage pipeline.

The invention discloses a water proofing and leak repairing construction method for a sewage pipe network below the underground water level. The method is performed through the following steps that 1, sewage removal is performed on a pipeline; 2, leak points are found and marked; 3, a precipitation well is drilled, and precipitation processing is performed on a construction well point; 4, leaking stoppage is performed on the interior of the pipeline; 5, a grouting hole is drilled, and cement paste is backfilled and grouted. According to the method, a lining pipe does not need to be used, the construction cost is saved by 50% compared with the method that water proofing and leak repairing are performed on the sewage pipe network in a lining pipe mode, and the high application and popularization value is achieved; the actual available pipe diameter of the sewage pipeline cannot be reduced, and the phenomenon that the drainage capacity of the sewage pipeline is reduced due to water proofing and leak repairing cannot occur; by grouting on the exterior of the pipeline to form a grouting layer at the periphery of the sewage pipeline, the strata at the periphery of the sewage pipeline is reinforced, and effective protection on the sewage pipeline is formed to prevent formation stress from destroying the sewage pipeline.

The invention discloses a grouting pipe construction method for post grouting of a cast-in-place pile. The grouting pipe construction method comprises the steps of manufacturing pile side grouting hoses, and forming side grout outlet holes in the preset positions of the manufactured pile side grouting hoses; installing a plurality of pile side grouting hoses on the pile side along the peripheral side of a reinforcement cage in a surrounding mode, so that the sides, with the side grout outlet holes, of the pile side grouting hoses are arranged in a protruding mode away from the reinforcement cage, outer protruding parts are formed on the outer sides of the pile side grouting hoses, and inner concave parts are formed on the inner sides of the pile side grouting hoses; installing a plurality of pile side grouting pipes in the preset position of the reinforcement cage, and communicating grout outlet holes in the bottoms of the pile side grouting pipes with pipe bodies of the pile side grouting hoses; installing a pile bottom grouting pipe at the bottom of the reinforcement cage, so that the bottom of the pile bottom grouting pipe extends out of the bottom of the reinforcement cage by a preset length; and connecting the pile side grouting pipes and the pile bottom grouting pipe with a grouting device. According to the grouting pipe construction method, the situation that the grout outlet holes of the grouting pipes are completely wrapped by concrete can be avoided, follow-up grouting is in a smooth state, and the construction quality of a pile foundation is improved.

The invention discloses a high-strength joint construction device suitable for composite cavity components. The high-strength joint construction device is applied to the composite cavity components where a plurality of cavities are formed. Cavity walls are arranged between adjacent cavities. The high-strength joint construction device comprises a high-strength connection plate arranged at the joint of the adjacent composite cavity components, a nut and a bolt. A connector assembly face located on the first side is formed on the two composite cavity components. The high-strength connection plates is attached and connected to the connector assembly face. Two connection parts are formed on the high-strength connection plate and are connected to the two composite cavity components correspondingly. The nut penetrates through the cavity walls from the second side of the composite cavity components to the first side. Connection holes are formed in the connection parts. The bolt penetrates through the connection holes and is in threaded connection with the nut. Specifically, the high-strength connection plate covers the joint between the adjacent composite cavity components, high-strengthconnection between the composite cavity components is achieved, the high-strength joint construction device has high tensile resistance and bending resistance, and a high-strength continuum is formedto effectively reinforce a stagger-jointed assembling tunnel.

A method for conducting grouting construction at the back of the pile bottom of a cast-in-place pile sequentially includes the following steps: (1) manufacturing and arranging a grouting pipe which comprises a plurality of grouting steel pipe sections sequentially connected from top to bottom with the lower end of the lowest grouting steel pipe section connected with a grouting spraying nozzle; (2) assembling a grouting station and a slurry transportation pipeline; (3) grouting. The method is characterized in that the grouting spraying nozzle used in the step (1) comprises a slurry spraying pipe body, a slurry inlet is formed in the upper end of the slurry spraying pipe body, a plurality of slurry discharging holes are formed in the lateral wall of the slurry spraying pipe body, a grouting one-way valve is installed on the slurry discharging holes, a sand wrapping device is arranged on the outside of the slurry spraying pipe body, a sand isolation layer is arranged between the sand wrapping device and the outer side of the slurry spraying pipe body, and the sand isolation layer covers the grouting one-way valve. When the grouting spraying nozzle reaches the bottom of a pile hole, and the portion of the upper end of the grouting pipe higher than the ground reaches preset height, the upper end of the grouting pipe is fixedly connected with a protection barrel at the top of the pile hole. By means of the method, smooth grouting can be achieved, grouting quality is ensured, and success ratio is ensured.

The invention discloses a device for filtering and stabilizing an acrylic grouting tank, which comprises a tank body and an upper cover. A circular shelf is arranged at the joint between the tank body and the upper cover, and a detachable and large-capacity filter screen is arranged in the middle of the shelf. , the top of the upper cover is connected with an automatic valve, the left and right sides of the automatic valve are respectively provided with an adjusting bolt and a sealing bolt, the adjusting bolt is connected to the valve plug through a spring, one end of the air pipe is connected to the sealing bolt, and the other end of the air pipe is connected to the upper cover , the space between the sealing bolt and the valve plug forms an air intake chamber, and the upper and lower ends of the automatic valve are respectively connected with a feed valve and a guide tube. Easy to implement, good effect, improve production efficiency, greatly improve product quality and process level, product light transmittance generally increased from below 92% to about 96‑97%, greatly expand the application field of products and the high standard requirements of special industries .

The present application relates to the field of decoration engineering, in particular to a ceramic tile thin paste layer structure and its construction technology, which includes a base layer, a tile adhesive layer and ceramic tiles arranged in sequence, and a disposable The base has a wedge inserted on the disposable base, a cross positioning frame is installed at the cross gap between four adjacent ceramic tiles, and a relief hole is provided at the center of the cross positioning frame. The application has the effect of effectively solving the problem of hollowing under the corners of tiles.

The invention discloses a disposable telescopic drilling tool used for fire preventing and extinguishing grouting in an underground coal mine. A front leading drill bit comprises three wing panels, joints of the three wing panels are in hollowed-out design, three top cutting disks located at the topmost end of the front leading drill bit rotate by 15 degrees towards the same direction along the side boundaries of the three wing panels correspondingly, and the projection portions of the three top cutting disks on a plane perpendicular to the axis of a rod body are overlapped; a flat key is arranged on the surface of the front portion of an inner core in the length direction, and a key groove matched with the flat key is formed in the inner wall of a sleeve in the length direction; and the rear end of the key groove makes contact with a clamping component, and a plurality of grouting holes are formed in the sleeve and the inner core. According to the disposable telescopic drilling tool used for the fire preventing and extinguishing grouting in the underground coal mine, under the precondition that hole-drilling construction is not influenced, a grouting way is extended from dot grouting to line grouting, and thick liquid is grouted from the multiple distributed grouting holes to a drilling rod, so that the grouting quantity is increased, the hole blocking probability is lowered, and grouting efficiency is improved; and full cutting is achieved, thus, the hole forming speed is greatly increased, and the three top cutting disks share the destructive power of a rock body to a single top cutting disk, so that the situation that hole drilling is successfully conducted is guaranteed.

The invention discloses a coal pile temperature measuring and cooling grouting device. The coal pile temperature measuring and cooling grouting device comprises an outer-layer inverted circular truncated cone body, an inner-layer inverted circular truncated cone body and self-heat-transfer heat pipes; the inner-layer inverted circular truncated cone body is connected with the outer-layer invertedcircular truncated cone body through bayonets; the top of the outer-layer inverted circular truncated cone body is of an open structure; the bottom of the outer-layer inverted circular truncated conebody is provided with an outer-layer circular truncated cone body bottom plate; the top of the inner-layer inverted circular truncated cone body is provided with an inner-layer inverted circular truncated cone body top plate; the bottom of the inner-layer inverted circular truncated cone body is provided with an inner-layer inverted circular truncated cone body bottom plate; the lower ends of theself-heat-transfer heat pipes penetrate through the inner-layer inverted circular truncated cone body top plate and extend into the middle-lower part of the inner-layer inverted circular truncated cone body; fins are arranged on the outer side wall of the outer-layer inverted circular truncated cone body; the fins are provided with a plurality of thermocouples; a plurality of outer-layer invertedcircular truncated cone body grout outlets are formed in the outer-layer inverted circular truncated cone body; a plurality of inner-layer inverted circular truncated cone body grout outlets are formed in the inner-layer inverted circular truncated cone body; and the inner-layer inverted circular truncated cone body is provided with a grouting system. The invention further discloses a coal pile temperature measuring and cooling grouting system. With the coal pile temperature measuring and cooling grouting device and system of the invention adopted, the temperature of a coal pile can be monitored in real time, the coal pile can be cooled through the self-heat-transfer heat pipes; the coal pile can be accurately cooled through grouting; and a cooling effect is good.