Catago50lacrim
San JosePipe sThe disposable grouting pipe can only be grouted once and cannot be reused.
Cut and cut the spring skeleton grouting pipe according to the components. The cutting surface must be flat and free of burrs. The length of its flat section must be ≥ the connecting reinforcement measures. During the bending process of the grouting pipe, 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
Turialba.The longitudinal overlapping width of grouting pipe and grouting pipe shall not be less than 20cm, and the transverse overlapping width shall not be less than 15cm. The former shall be placed on the latter according to the asphalt paving direction. After laying the glass fiber grouting pipe, fix the glass fiber grouting pipe with high-quality cement nails and fixed iron sheets with a size of 30mm, the product of cement hydration reaction, that is, after cement and water are mixed into cement slurry, Ca (OH) 2 with strong activity is produced due to hydrolysis and hydration; Water glass interacts with Ca (OH) 2 to form a gel with certain strength - calcium silicate hydrate. The reaction is as follows [2].
. When lifting and demoulding components, the concrete strength must meet the design requirements.
The repetitive grouting pipe can be reused for many times, and the core and outer wall of the pipe need to be cleaned after each use.
Ceramic process 1: make and process gypsum molds according to the requirements of a certain place.
When reinforcing collapsible loess, sodium silicate solution with 5% sodium chloride and concentration of 10% ~ 15% is used. After the solution is pressed into the soil layer, sodium ions will react with calcium ions in water-soluble salts of the soil to form silicic acid gel between soil particles and on their surfaces, increase the cementation between soil particles, and harden the soil. The ultimate compressive strength can reach 0.2 ~ 0.8MPa. When strengthening the silty fine sand, a certain amount of phosphoric acid (density 0 is added to the sodium silicate solution (density 18-2 with a low concentration. The solution is chemically reacted in the soil to harden the soil, and its ultimate compressive strength can reach 0.4-0.6mpa.
Answer: it varies according to the model and elasticity of the grouting pipe, and its internal pressure can reach 150bar or more.
Good advantages of steel origin and convenient transportation enable us to meet customer requirements efficiently and quickly.
market.Development trend editor since the advent of Portland cement in 1824, cement grouting has been the main grouting method in engineering. However ordinary cement can only be filled with sand gravel or pores with a diameter greater than 0.2 ~ 0.3mm due to its coarse particles. Therefore, improving the fineness of cement particles has become the main way to improve the groutability of cement slurry. Some countries have developed a kind of ultra-fine cement, which can pour fine sand with permeability coefficient of 10-3 ~ 10-4cm / s and micro cracks in rocks. It is a promising granular grouting material. Propionate is a kind of water-soluble polymer chemical slurry, whose viscosity is close to that of water. It is widely used in anti-seepage grouting and dynamic water plugging of fine rock cracks and medium fine sand layers. However, this kind of pulp material is toxic and pollutes the air and groundwater,TurialbaGrouting seamless pipe, so most of them have stopped production and use. In 1980, AC400 slurry was developed in the United States, and in 1982, ac-ms slurry was developed in China. The toxicity of this kind of slurry is very small (only 1% of the toxicity of propionate). It is an ideal anti-seepage slurry. The non alkaline silicate slurry developed in Japan has no alkaline pollution to groundwater, low viscosity, high gel strength, good durability and does not change the pH value of groundwater. [2] Grouting method is divided into ceramic process grouting and construction engineering grouting. Ceramic process grouting is the process of using the prepared mud injection in ceramic production. Construction engineering is to use appropriate methods to inject some curable grout into the cracks or pores of the rock and soil foundation,TurialbaTunnel small conduit, and to improve its physical and mechanical properties through replacement, filling, extrusion and other methods to make ceramic bodies suitable for processing.Make it into a certain shape size and specification. Seepage prevention Water plugging 3
When grouting in the grouting pipe under pressure, the grouting can keep filling the whole pipe evenly.
The electric double fluid silicification method is suitable for strengthening soft clay foundation with permeability coefficient less than 0.1m/d. The grouting pipe with holes is used as the anode, and the reinforcement or filter pipe driven into the soil layer is used as the cathode. The sodium silicate and calcium chloride solutions are pressed into the soil layer through the grouting pipe and supplied with direct current. Under the action of electroosmosis, the pore water diffuses from the anode to the cathode, and the solution flows from the anode to the cathode along with the movement of water, so that the grouting effect is improved. The reinforcement cost of this method is high, the surface of the soil particles will be activated and self cemented,Turialba32lead small conduit, so as to improve the strength and water stability of the soil, which is called the single solution method; When the content of calcium and magnesium ions in the soil is less (such as general cohesive soil)
Injecting grout into the embedded grouting pipe can seal construction joints, cold joints, pipe leakage and joints between the ground walls.
Process inspection.The grouting can be repeated many times.
The small editor of prestressed machines and tools will lead you to understand the main connection methods between the drive device and the wellhead: the connection between the flange of the drive head of the electric oil pump and the parallel flange is the most widely used one at present. There is a flange at the lower part of the drive head, and the size matches the flange of the Christmas tree wellhead.
Permanent sealing can be ensured after grouting. If there is no leakage grouting can be omitted.
Turialba.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.
[0018] the fixed cutting device 2 is mainly composed of a cutting blade 6 and a pulley The cutting blade 6 and the pulley 7 are respectively connected to both sides of the cutting rotary device 5 through slots. The cutting blade is shown in Fig.
Process flow: the drilling machine is in place → drilling → mud injection → casing running → continuing drilling → slag removal → hole cleaning → lifting and placing the reinforcement cage → bottom cleaning by water injection → inserting the concrete conduit → pouring concrete → pulling out the conduit → inserting the pile top reinforcement. There are single liquid silicification, double liquid silicification, aerated silicification and electric double liquid silicification.