Catago50lacrim
SoletracySuppoGrouting pipe is a kind of embedded grouting pipe system, which is used for permanent sealing of construction joints,TimmingsLeading small conduit42, 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, it can be sealed by injecting slurry into the PVC port set on the surface. The proper grouting time can be selected after the concrete curing. Leakage joints can also be permanently sealed in this way.
The fast cutting device in the hole of the underground grouting pipe according to claim 1, wherein the outer diameter of the cutting rotating device is 2 mm smaller than the inner diameter of the grouting pipe.
Timmings. The overhead type is a special rack installed at the bottom of the driving head and connected with the wellhead tensioning equipment.
The construction steps of the three grouting methods are basically the same: the lower pipe grouting pipe grouting method and the flower pipe grouting method generally use the vibration method to place the grouting pipe into the soil at a predetermined depth. In the case of a large depth, the method of pre drilling a certain depth and then vibrating in can also be used. The drill pipe grouting method directly relies on the drilling method to place the grouting pipe (drill pipe) into the soil.
. Permanent sealing can be ensured after grouting. If there is no leakage, grouting can be omitted.
Weight per linear meter = (outer diameter - wall thickness) * wall thickness * 0.0246615 where the outer diameter refers to the outer circumferential diameter of the grouting pipe; The wall thickness is the difference between the outer diameter and the inner diameter; The above content is the calculation method of the specification and weight of the grouting pipe introduced. I hope it will be helpful to you in the future.
The grout stop plug used in the grout stop plug grouting method is the key device to seal the grouting borehole and realize segmented grouting. A good grout stop plug should ensure normal operation under the grouting pressure of more than 10MPa. According to its structure and working principle, the currently used slurry stoppers can be divided into two types: mechanical type and hydraulic expansion type. Among them, mechanical slurry stoppers are relatively simple and reliable, and are widely used. 21-5 is one of several commonly used slurry stoppers.
The comparison between the embedded detection and the on-site detection of the grouting pipe is yzed as follows: The embedded detection pipe: The pile diameter of 0.6 ~ 0.8m should be buried with double pipes; Three pipes shall be buried with pile diameter of 0.8 ~ 0m; Four pipes shall be buried above the pile diameter of 0m. According to the specific situation of Chifeng bridge, three pipes can be buried in the pile foundation.
The grouting pipe with the grouting pipe as the core flexible element can be compensated in the axial, the internal pressure grouting pipe can be displaced in three directions, it can often only be displaced in the axial direction. Therefore, the user needs to indicate the displacement in several directions when selecting and ordering, so as to select correctly. The working principle of the grouting pipe is to use its own elastic deformation to compensate the axial, angular, lateral and combined displacement of the pipe due to thermal deformation mechanical deformation and various mechanical vibrations. The compensation has the s of sealing, pressure resistance temperature resistance, impact resistance, vibration reduction and noise reduction, which can reduce the deformation of the pipe and improve the service life of the pipe.
[patent attachment] [description] [0010] 1 is the structural diagram of the utility model; [0011] 2 is a schematic diagram of the cutting blade; [0012] 3 is the schematic diagram of tightening the blade nut; [0013] 4 is a schematic diagram of the fixed cutting device.
How much does it cost?. When the daily average temperature is lower than 5 ℃ no watering and thermal insulation measures shall be taken. Steam curing can be used when the temperature cannot reach the natural curing conditions or early demoulding is required. Generally, steam curing should be carried out at a temperature of about 65 degrees. Canvas and tarpaulin should be used for curing. In order to avoid crack deformation of concrete components caused by sudden rise and fall of steam temperature, the speed of temperature rise and drop must be strictly controlled.
After the grouting hole is drilled, the grouting pipe, grout stopper, mixer and other facilities in the hole shall be installed and lowered.
[0021] in one embodiment, as shown in Fig. 1, the flange I is used for the installation and connection of the utility model and the underground grouting pipe. The fast cutting device of the utility model rotates the bolt by using the fastening force acting on the bolt, and the fixed cutting device 2 can be moved up and down through the screws on the bolt. There are screw patterns on the outer surface of the cutting rotary device 5 and on the upper end of the tension blade device The tension blade nut 4 can be directly screwed to one end of the tension blade device A cutting blade 6 and a pulley 7 are fixed to the lower end of the cutting rotary device 5, and the outer diameter of the cutting rotary device 5 is smaller than the inner diameter 2_ of the sleeve. The specification of the utility model can be made into a series of products according to different specifications of the grouting pipe.
Ca （OH）2 +Na2O·nSiO2 +mH2O →CaO·nSiO2·mH2O+2NaOH,Timmings50lead small conduit,
offer.[0023] the innovation points of the utility model are as follows: The operation intensity of workers is reduced by using the lead screw principle; The use of rotary cutting in the casing reduces the amount of work for clearing the roadway floor; The cutting depth of the utility model can be adjusted at will according to the actual situation of the roadway.
Answer: Yes, the elastic extension speed of the grouting pipe can be defined within a certain range in the design, but for a grouting pipe that has been designed, its elastic extension speed is certain.
[0019] a flange I and a bearing 8 are provided on the outer surface of the cutting rotating device The fast cutting device in the hole is installed in the grouting pipe hole through the flange. The fixed cutting device 2 is mainly composed of a cutting blade and a pulley. The expansion and contraction diameter of the blade is adjusted by the bolts at the tail of the rotating flange to cut the grouting pipe. The rotating blade and the pulley are connected to the rotating device through slots.[0020] the outer diameter of the cutting rotary device 5 is 2mm smaller than the inner diameter of the grouting pipe, so that the device can smoothly extend into the grouting pipe for cutting.
Timmings.Pre detection can be carried out. If there is no leakage, grouting can not be carried out.
Injecting grout into the embedded grouting pipe can seal construction joints, cold joints, pipe leakage and joints between the ground walls.
In addition, the water corrosion test results of the grouting material simulating the fresh water erosion environment show that the strength of the stone body of the grouting material does not lose under the condition of water corrosion for 180 days, while the strength loss of the cement water glass grouting material reaches 50%, which shows that the water corrosion resistance durability of the water glass industrial waste two liquid grouting material is better than that of the cement water glass two liquid grouting material [7].