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San JosePipe sThe multiple grouting pipes are fully combined with two as a detection profile, and the detection is completed for multiple profiles respectively.
[0022] when the utility model is in use, the flange plate is used to fix the utility model and the flange plate of the underground grouting pipe, the bolt is rotated with a tool, the cutting blade is adjusted to a certain position by the screw on the bolt, and then fixed, and then the screw cap of the blade is rotated and tightened to make the cutting blade and the pulley contact the inner surface of the grouting pipe with a certain contact force, that is,ArlingtonPile bottom grouting pipe,ArlingtonTunnel small conduit, neither loose nor tight. The cutting blade and the pulley are directly inserted into the concave groove of the rotating device through the slot, and the cutting rotating device is fastened and rotated by a wrench or a tooth wrench, and the pulley and the blade are driven to rotate by the rotation of the bolt, thereby rotating the casing. The pulley is located on the other side of the rotating device, corresponding to the blade. It is mainly used to reduce the friction between the rotating device and the casing wall, and fix the position of the blade in the casing, so as to prevent the blade on one side from shifting during cutting, failing to achieve the cutting purpose, or even damaging the blade. The fastening bolt is rotated by a wrench or tooth wrench, so as to drive the pulley and blade to rotate. The cutting rotating device cuts the casing. When the casing is cut to a certain depth, the blade nut is tightened again and the cutting continues until the casing wall is cut through. It has the characteristics of 4-5 times higher work efficiency than manual cutting and lower labor intensity of workers.
Arlington.Two convex grooves are planned at the end of the bell end of the double seal clamp grouting pipe, and the convex grooves are equipped with sealing rings. During installation, the spigot end of the product is stabbed into the bell end. The grouting pipe then kneads the two convex grooves together with a special hydraulic clamp and the pipe at the kneaded part is shortened and deformed after being stressed. The outer pipe between the two convex grooves is deeply embedded into the inner pipe, and then the connection of the product is completed; After being kneaded, a rubber sealing ring is deformed and pasted between two layers of pipes, which plays a double safety sealing effect.
Curing The concrete components shall be covered and moisture cured within 12h after pouring. The time of concrete curing by watering shall not be less than 7 days for the concrete mixed with Portland cement, ordinary portland cement or slag Portland cement; For the concrete mixed with retarded admixture or with impermeability requirements, it shall not be less than 14 degrees. The cured concrete shall be covered with plastic cloth, and all exposed surfaces shall be tightly covered, and condensed water shall be kept in the plastic cloth.
. It has good impact resistance and high fracture elongation. Experience has proved that it can resist the impact of natural disasters such as earthquakes.
If there is no leakage, non reusable ccll-d series grouting pipe: multiple grouting, grouting is not limited by time.It is applicable to waterproof joints of subway, tunnel and basement. If there is water leakage, grout can be injected into the pipe body to fill and seal. If there is no leakage, which is used for permanent sealing of construction joints, cold joints, pipe seepage joints and gaps between ground walls in concrete. It is very suitable to install grouting pipes between the joints of new and old concrete. When water penetrates into the joint, kg / M; D - Nominal outer diameter of steel pipe, mm; S - nominal wall thickness of steel pipe, mm.
[specific embodiment] [0015] the following describes the utility model in combination with the attached specific embodiments.
At the same time, because the space in the grouting pipe restricts the lateral sliding and rolling of the soil particles inside, the relative displacement trend or relative displacement also occurs between this part of soil particles and adjacent soil particles, resulting in friction. This friction force is generally called &bite force& or &lateral force resistance&. The &surface friction& and &bite force& make the slip and roll of soil particles under the force of the upper limit line at the location of the grouting pipe, and limit the lateral displacement of soil in the whole plane of the grouting pipe. The grouting pipe plays an important role in the key points of settlement. Therefore, it is reasonable to use the grouting pipe to treat the uneven settlement of fill excavation transition subgrade. This paper yzes the action mechanism of the grouting pipe according to its type and characteristics, introduces the construction technology and process in the construction of preventing the reflection crack of the road surface, and proposes a new technology of sprinkling a layer of filler in the grouting pipe network when paving the surface course. As a kind of road reinforcement material, grouting pipe is widely used in road maintenance engineering because of its advantages of simple, fast construction and low investment.
The double liquid silicification method is suitable for strengthening sandy soil with permeability coefficient of 0 ~ 0m/d or for seepage prevention and water stop. A sodium silicate solution having a density of 35 to 44 and a calcium chloride solution having a density of 26 to 28 are used. After the two solutions are contacted with the soil, a gel chemical reaction is generated to generate silica gel and calcium hydroxide. The ultimate compressive strength of the reinforced soil can reach 5 ~ 0MPa.
Safety and health. The grouting pipe is a thermoplastic material, which can be processed and formed many times, which provides convenience for the hot-melt and electric fusion connection of the pipe.
Four advantages of establishing a good cooperative relationship with customers: Professional production equipment and testing facilities ensure the quality of the supplied grouting pipes.
Construction sequence: remove the cement residue and attached floating soil on the foundation surface. Use vise to cut it pipe with proper length, and each loop is 4m according to the paper requirements. Put the outer layer of fabric into the blue horn interface to try the tensile property and confirm that it has been inserted to the end. The other end of the horn is sleeved with a PVC reinforced grouting pipe. It pipes shall be arranged according to the direction of construction joints, and installed 150mm away from the back water surface. Note that the green it pipe itself cannot be exposed to the concrete to be poured, and ensure that the PVC pipe is exposed outside the concrete for grouting in the future. Cement nail fixing clips or iron wires shall be used for fixing every other distance, and the distance between two fixing points shall be ≤ 30cm. The ends of it pipes of two adjacent circuits must overlap by at least 10cm. The exposed PVC pipe is installed in the grouting interface box to facilitate grouting in the future.
On site inspection of grouting pipe: Before on-site inspection, measure the delay time from the sound wave monitor to the receiving system. And calculates a sound time correction value.
Development Curriculum.Injecting grout into the embedded grouting pipe can seal construction joints, cold joints pipe leakage and joints between the ground walls.
Two convex grooves are planned at the end of the bell end of the double seal clamp grouting pipe, and the convex grooves are equipped with sealing rings. During installation, the spigot end of the product is stabbed into the bell end. The grouting pipe then kneads the two convex grooves together with a special hydraulic clamp and the pipe at the kneaded part is shortened and deformed after being stressed. The outer pipe between the two convex grooves is deeply embedded into the inner pipe, and then the connection of the product is completed; After being kneaded, a rubber sealing ring is deformed and pasted between two layers of pipes, which plays a double safety sealing effect.
Green grouting materials mainly refer to industrial wastes such as fly ash, slag and steel slag. It can be excited by alkali, and its solid particles are smaller than ordinary cement particles, and the particle gradation distribution is more reasonable. Therefore, it can be used as a raw material for grouting materials.
Arlington.Green grouting materials mainly refer to industrial wastes such as fly ash, and its solid particles are smaller than ordinary cement particles, and the particle gradation distribution is more reasonable. Therefore, it can be used as a raw material for grouting materials.
The installation is simple fast and firm. At least one part of the grouting conduit buried in the concrete shall be firmly bound with the structural reinforcement; The length of the grouting duct leading out of the concrete shall not be less than 150mm; The leading end of the grouting conduit shall be set at a convenient and accessible position. No part of the grouting conduit shall be flattened or bent to avoid affecting the flow of grout. The opening end of the conduit shall be temporarily blocked to prevent foreign matters from entering. The damaged part of the grouting pipe shall be cut off, and the grouting pipe with the installed grouting pipe shall be re set at the cut-off part, and shall be overlapped with the original grouting pipe at both ends.When binding or welding reinforcement near the grouting pipe, the bridge will shrink and deform. The grouting pipe and the bridge expansion joint play a major role at this time. The expansion amount of the grouting pipe and the expansion joint must be calculated accurately. The installation and construction of the grouting pipe and the expansion joint need to ensure the quality. We should select the model and type of grouting pipe and bridge expansion joint, and determine the installation time, installation season and temperature of grouting pipe and expansion joint. Calculate the large and small preload of grouting pipe and expansion joint.
Cement water glass slurry overcomes the shortcomings of single liquid cement slurry, such as long setting time, difficult control and low stone rate, improves the effect of cement grouting and expands the scope of application of cement grouting [1].