White stoneTun
Catago50lacrim
San JosePipe sSteel pipe, plastic pipe or steel corrugated pipe should be used as acoustic detection pipe, and its inner diameter should be 50 ~ 60mm. The connection of detection pipes shall be smooth transition, the nozzle shall be more than 100mm higher than the pile top, and the nozzle height of each detection pipe shall be the same. The lower end of the pipe shall be closed, and the upper end shall be covered. There shall be no foreign matters in the pipe and no damage to the pipe body.
(outer diameter - wall thickness) what is actually obtained is the average value of the inner and outer diameters of the circumference. If this value is multiplied by the circumference ratio (π = 141592, the circumference will be obtained. If the circumference is multiplied by the wall thickness, the area of a section will be obtained. If the area of this section is multiplied by 1 meter (1000mm), the adjusted volume will be obtained. If the adjusted volume is multiplied by the density of 85, the weight of one meter length will be obtained.
White stone.The grouting pipe shall be cut with a toothless saw (grinding wheel clamp). Cutting by electric or gas welding is easy to damage the surrounding surface and cause local heating at the end, which significantly reduces its performance. During the use of the grouting pipe, it is forbidden to take any form of heating deformation measures to avoid reducing the mechanical properties of the grouting pipe.
The installation will not affect the characteristics of the building grouting pipe itself; The installation or grouting process will not harm the concrete; Permanent sealing can be ensured after grouting; If there is no leakage, grouting is not allowed; Ccll-y series grouting pipe: grouting once, not reusable ccll-d series grouting pipe: multiple times of 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. It is very suitable to install grouting pipes between the joints of new and old concrete. Various materials such as cement slurry, polymer slurry and polyurethane chemical slurry can be injected. When water penetrates into the joint, the joint can be sealed by injecting slurry into the PVC port or spring skeleton 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.
.[0024] it should be noted that the above specific embodiments are only exemplary. Under the above teachings of the utility model,White stoneLeading small conduit manufacturer, 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.
[0021] in one embodiment, 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.
The so-called direct grouting method refers to the method of directly placing the grouting pipe into the soil by vibrating or drilling. According to the different forms of grouting pipes, the direct grouting method can be divided into the grouting pipe grouting method, the drill pipe grouting method, and the stop plug grouting method.Grouting pipe grouting method refers to the method of grouting directly through the nozzle at the lower part of the grouting pipe; The flower tube grouting method is a method of grouting through a grouting tube (flower tube) with multiple grouting holes on the side wall; The drill pipe grouting method refers to the method of grouting directly through the drill pipe for drilling.
If there is no leakage, grouting can be avoided; Common specifications ccll-y series grouting pipe: grouting once, 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,White stoneGrouting small conduit, grout can be injected into the pipe body to fill and seal. If there is no leakage grouting can be omitted. Grouting pipe is a kind of embedded grouting pipe system, 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, the joint 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 made into durable seals by this method.
In recent years, there have been frequent natural disasters, such as mountain slides, floods, earthquakes, fires etc. we are so small in the face of natural disasters that we can only devote our efforts to normal prevention and post disaster rescue. The grouting pipe can reduce the damage caused by these natural disasters.Grouting pipe is an expert in road construction. It can connect the subgrade as a whole and improve the bearing capacity of the subgrade. When encountering natural disasters, the subgrade will not be greatly damaged due to natural disasters, so that we can save more people in the rescue work. The grouting pipe can also play a great role in slope protection. The use of the grouting pipe can well prevent the landslide of mountain soil and debris flow disasters. Through many years of practical experience, it has been proved that the roads that usually use the grouting pipe are far more than the same period of projects in terms of service life and quality. Thus reducing the casualty rate. Grouting pipe is a kind of excellent geosynthetics used for Pavement Reinforcement, old road reinforcement, subgrade reinforcement and soft soil foundation reinforcement. It has become an irreplaceable material in the application of asphalt pavement reflection crack treatment. This product is a semi-rigid product made of high-strength alkali free grouting pipe, which is made of mesh base material through internationally advanced warp knitting process and surface coating treatment. It has high tensile strength and low elongation in both longitude and latitude, and has excellent properties such as high temperature resistance, low cold resistance, aging resistance and corrosion resistance. It is widely used in asphalt pavement, railway subgrade, embankment slope protection, airport runway, sand prevention and control projects. Grouting pipe laying and fixing of grouting pipe laying of glass fiber grouting pipe can be carried out by special equipment refitted from tractors or automobiles, or manually.
The distance between measurement points is 40cm, and when abnormalities are found, it is encrypted to 20cm.
Potential development.Consolidation Prevent landslide Reduce ground subsidence Improve foundation bearing capacity Backfill Reinforcement materials: cement slurry, chemical slurry mixed slurry object: rock grouting, gravel grouting, clay grouting, coal body grouting coal and rock mass grouting : anti-seepage grouting, reinforcement grouting foundation underpinning grouting, water blocking reinforcement grouting, sealing filling grouting mechanism: filling grouting, splitting and vein grouting, bedrock crack grouting, seepage grouting Interface grouting, concrete crack grouting, compaction grouting pressure: static pressure grouting, high-pressure jet grouting ceramic technology; It is divided into high-pressure grouting and ordinary grouting injection grouting.
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, so most of them have stopped production and use. In 1980,White stone50lacrimal duct, 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, 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
The proper grouting time can be selected after the concrete curing. Leakage joints can also be permanently sealed in this way.
● 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.
Credit guarantee.3CaO·SiO2+nH2O→2CaO·SiO2·（n－H2O+Ca（OH）2,
Sometimes the grouting pipe is overlaid on the two sides of the horseshoe surface. Adjust the cooperation specifications of the grouting pipe at the distribution nozzle. How to avoid grout leakage during installation of grouting pipe?
When installing the Hainan grouting pipe, carefully check the embedded reinforcement in the groove before the joint is lowered. If cracks or breaks are found, remedial measures must be taken.
White stone.Ceramic process 1: make and process gypsum molds according to the requirements of a certain place.
● specification: inner diameter of disposable grouting pipe: 8mm; Outer diameter: 12mm; Inner diameter tolerance: ± 0.3mm; Length of each roll: 120m.
Display and record the time history curve of the received signal in real time.