Chatham KentAd
San JosePipe s
SoletracySuppoFeatures of reusable grouting pipe: with one-way switch . Good anti blocking property and no backflow of slurry.
Grouting pipe is a tubular waterproof sealing material used for grouting of concrete construction joints.
Chatham Kent.The grouting pipe with the grouting pipe as the core flexible element can be compensated in the axial, lateral and angular directions on the pipeline. From the perspective of its performance, the internal pressure grouting pipe can be displaced in three directions, but because it is limited by casing and other accessories, 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, corrosion resistance impact resistance, which can reduce the deformation of the pipe and improve the service life of the pipe.
The cement grouting method is applicable to the grouting of gravel layer and rock fissure. Ordinary portland cement is generally used, the water cement ratio is 1:1, and 2% ~ 5% water glass can be added as the accelerator. Ordinary extrusion mortar pump is used for grouting, and the maximum grouting pressure shall not exceed 1MPa. For silty fine sand and cohesive soil with permeability coefficient less than 10-4cm / s, split grouting can be adopted. The consistency of the cement slurry used for split grouting is large, and the water cement ratio is 0.45 ~ 0.60. Flower tube method and one-way valve tube method are adopted for grouting. The maximum pressure of grouting is generally greater than 4MPa.
. 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.
The specification and weight of the grouting pipe are actually very well understood. It is the approximate method for calculating the weight of the grouting pipe per linear meter, and it is also the only correct algorithm that can be found now: the weight of the grouting pipe = 0.0246615 × (outer diameter of grouting pipe - wall thickness of grouting pipe) × Wall thickness of grouting pipe.The normal writing should be: w = 0.02466 * s (D-S), the outer diameter of the cutting rotary device is 2mm smaller than the inner diameter of the grouting pipe.
Appropriate measures shall be taken to prevent surface water, curing water and garbage from falling in. When necessary, a sump shall be set near the post cast strip of the base plate in combination with the design of the basement plane drainage system to facilitate the final cleaning before the grouting pipe is cast. When advance water stop is not used, a sump shall be set, which can be set in the basement according to the above method, or set outdoors as a temporary facility. Usually,Chatham KentAdvance small conduit for tunnel, we use the waterproof scheme between the grouting pipe and the water surface or before, and there are many methods for the grouting pipe to stop water in advance. It should be noted that the design unit should participate in the review of the construction organization design of the basement, so as to determine a complete implementation scheme of advanced water stop before the excavation of the foundation pit and the pouring of the cushion. Otherwise, the design modification requirements will be put forward only when problems are found in advance water stop during construction, it is not allowed to use a small one. The inner diameter of the grouting pipe is compressed and cracked. The alignment between M and FL is 45-56
details. Verify the water permeability of the rock stratum according to the measured water absorption of the borehole to determine the grouting pressure and flow, and determine the grouting slurry and its initial concentration.
When grouting in the grouting pipe under pressure, the grouting can keep filling the whole pipe evenly.
[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.
The installation of grouting pipes will not affect the activity of the building itself. The installation or grouting process will not harm the concrete.
Installation conditions.The aerated silicification method is to press carbon dioxide or ammonia into the soil in advance to activate the soil, then pour sodium silicate solution, and then press carbon dioxide to make sodium silicate gel. When the sand is reinforced, the compressive strength can reach 1000 ~ 3000kpa. For the sand without carbonate, the reinforcement radius of the aerated silicification method can be about 50% larger than that of the single liquid silicification method.
It has good flexibility. The pipes can be coiled when they are produced, so that the number of joints in the pipe network can be reduced. It can be laid according to the terrain, easily bypass obstacles, and is convenient for construction.
● advantages: Simple installation, complete set; The grouting pipe can be intercepted at the construction site according to the actual required length of the joint (it is recommended that the longest grouting outlet length should not exceed 6m); No special installation equipment is required; Grouting time can be arbitrarily selected; When grouting is carried out internally under proper pressure, the grouting pipe fluid can keep filling the whole pipe evenly; The system allows grouting under relatively low pressure; The grouting pressure is 0.2-0.4mpa.
Chatham Kent.The specification and weight of the grouting pipe are actually very well understood. It is the approximate method for calculating the weight of the grouting pipe per linear meter, and it is also the only correct algorithm that can be found now: the weight of the grouting pipe = 0.0246615 × (outer diameter of grouting pipe - wall thickness of grouting pipe) × Wall thickness of grouting pipe.The normal writing should be: w = 0.02466 * s (D-S) where d = outer diameter s = wall thickness.
[0004] the technical scheme adopted by the utility model to solve the above technical problems is described as follows: [0005] a fast cutting device in the hole of a underground grouting pipe, the fast cutting device in the hole mainly consists of a fixed cutting device, a tension blade device and a cutting rotation device, [0006] the tension blade device is sleeved in the cutting rotation device, Screw threads are respectively arranged on the outer surface of the cutting rotating device and the upper end of the tension blade device. The tension blade device and the cutting rotating device are connected by threads. The end of the tension blade device protruding from the cutting rotating device is provided with a tension blade nut. The fixed cutting device is mainly composed of a cutting blade and a pulley. The cutting blade and the pulley are respectively connected on both sides of the cutting rotating device through slots, A flange plate and a bearing are arranged on the outer surface of the cutting rotating device, the quick cutting device in the hole is installed in the grouting pipe hole through the flange plate, and the fixed cutting device is connected with the grouting pipe flange plate through bolts.
[0024] it should be noted that the above specific embodiments are only exemplary. Under the above teachings of the utility model,Chatham KentAdvance grouting small conduit, those skilled in the art can make various improvements and modifications on the basis of the above embodiments, and these improvements or modifications fall within the protection scope of the utility model. Those skilled in the art should understand that the above specific description is only for the purpose of explaining the utility model, and is not intended to limit the utility model. The scope of protection of the utility model is defined by the claims and their equivalents.