The reusable grouting pipe is used for waterproof sealing of concrete joints and can be used for multiple times of grouting.
The installation will not affect the characteristics of the building grouting pipe; 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. The embedded grouting pipe system 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. 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.
San Isidro.The foundation pit excavation shall strictly follow the principle of &layered excavation&. The support erection shall be closely coordinated with the earthwork excavation. During the excavation, the earthwork near the grouting pipe shall be excavated by the central trenching method to prevent the machinery from colliding with the support; The earthwork near the slope protection pile shall be excavated manually with small machines and tools. It is forbidden to collide with the grouting pipe and bored pile by mechanical excavation. After the earthwork is excavated to the design elevation the grouting pipe shall be erected and prestressed in time to reduce the exposure time without support.
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, which is used for permanent sealing of construction joints, cold joints, 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.
Grouting time can be arbitrarily selected; When grouting is carried out internally under the action of appropriate 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.
When grouting in the grouting pipe under pressure, the grouting can keep filling the whole pipe evenly.
Application scope: This product can be widely used in subway, water plant and sewage treatment plant, swimming pool and upstream amusement park, dam, ship lock, c, reservoir and ditch, nuclear power station, primary and secondary cofferdam facilities, bridges, commercial and industrial buildings, garages, stadiums, aquariums, water tanks and similar structures. Grouting channel for deformation joint, construction joint leakage maintenance and embedded water stop. Slurry pipe (theoretical weight per meter)
The stability of the grouting pipe is one of the important factors to control the stability of the whole foundation pit. Its erection must be accurate and in place, and prestress must be applied in strict accordance with the design requirements. In particular, attention should be paid to the stability of the diagonal bracing. During the diagonal bracing operation, every link of the installation must be carefully operated. At the same time, the steel purlin must also ensure its stability, strength and deformation requirements during the production and installation process. In addition, During the whole construction process from foundation pit grouting pipe erection to removal, the grouting pipe must be strictly monitored to ensure its stability. How to improve the bearing capacity of piles with grouting pipes in bored piles during the drilling process of large-diameter cast-in-place piles, the soil layer around the piles will become loose due to the agitation of the turning heads. In addition, the water immersion makes the soil layer that has started to loosen more loose. This problem can be effectively solved by grouting with grouting pipes. How to improve the bearing capacity of piles when grouting with grouting pipes?
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.
Professional is king.This is a 32 size pipe body grouting steel pipe commonly used in grouting pipes. It is a customized product and can be customized according to user needs. However, the most common diameter specifications in the market at present mainly include 25mm, 32mm, 48mm,San IsidroAdvance small conduit support, 60mm and so on.
When each formwork is in place, lay the steam probe at the bottom of the formwork, and adjust the profiling after installation. According to the actual needs, the shaped reinforcement on both sides of 1200m shall be installed, and the well shall be upgraded and placed and marked.
Consolidation Prevent landslide Reduce ground subsidence Improve foundation bearing capacity Backfill Reinforcement materials: cement slurry,San IsidroGrouting small conduit, 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.
Grouting: connect the grouting equipment,San Isidro25hollow grouting anchor bolt manufacturer, grouting pump and the lowered grouting pipe, and inject the slurry into the soil through the grouting pump. After completing the construction of one grouting section, move the grouting pipe upward or downward as required to carry out the construction of the next grouting section.
For more, please check. During concrete construction, special personnel shall be assigned to take care of the reserved and embedded reinforcement, formwork and water and electricity to prevent deformation and displacement. In addition, and when abnormalities are found, it is encrypted to 20cm.
2 specification: inner diameter of disposable grouting pipe: 8mm; Outer diameter: 12mm; Inner diameter tolerance: ± 0.3mm; Length of each roll: 120m. Inner diameter of repetitive grouting pipe: 8mm; Outer diameter: 20mm Inner diameter tolerance: ± 0.3mm; Length of each roll: 90m.
 Middle label: 1 refers to flange, 2 refers to fixed cutting device, 3 refers to tightening blade device, 4 refers to tightening blade nut, 5 refers to cutting rotating device, 6 refers to cutting blade, 7 refers to pulley and 8 refers to bearing.