Sleeve valve pipe, high pressure splitting grouting pipe, tunnel grouting tube, subway sleeve valve tube into a production factory in Jining national sentinel professional production enterprise mainly for splitting grouting soft soil preparation or partial reinforcement, anti-dam seepage and deep foundation in ground subsidence occurred during construction reinforcement, foundation seepage plugging. Depending on the site requirements for grouting can be divided into single and double hydraulic hydraulic pulp slurry method. General single hydraulic slurry formulations made of cement, fly ash, bentonite material composition, while the dual hydraulic slurry is in the single hydraulic cement slurry added to the formula to make rapid solidification of water glass and other materials are generally used for rescue works. Common grouting method, and a flower tube and check valve pipe grouting grouting two kinds of construction methods. Two kinds of methods can be used for permeation grouting grouting and fracture grouting can only use one-way valve pipe grouting. In the soil permeability coefficient of less than 10-4cm / s, generally difficult to scrape together the flower tube grouting effect, instead of using one-way valve tube fracturing grouting. Reality that a certain depth below the surface of the soil reinforcement and tracking grouting, the fracturing grouting easy construction, better advantage, especially for soil deep location, quantitative grouting, a hole can many times repeated grouting is generally flower tube compaction grouting can not be replaced. Main construction steps are as follows: (1) Drill hole 80-100mm range is generally drilled vertical error is less than 1% (2) hole filling material, also known as shell material casing closed mud, to the designed depth from drill to drill poured into the closed mud, whose role is to check valve closed the gap between the pipe and the borehole, forcing open loop from the grout hole, the pressure to burst out of the slurry feed injection four weeks casing soil. (3) full of drilling mud into the closed check valve tube (splitting grouting pipe) Average inner diameter? 40 to 60 plastic tube every 33 ~ 50c m drill a hole injection slurry (per m 2 3 groups) outsourcing rubber sleeve, insert drilling pipe end closed tube filled with water. (4) in closed slurry reaches a certain intensity, the one-way valve tube is inserted into the bi-directional sealing grouting grouting stratified core tube. First, increase the pressure to open the top rubber grout sets, racking casing material, produced in soil fracturing, and along the crack spread by diffusion range of ocean plasma pressure, time, size ratio, soil characteristics and other factors . General grouting from the bottom up, to a certain pressure, lift a re-grouting, so repeated. After grouting, slurry filed a stay order on the second repeated grouting (one-way valve plastic tube that is left in the soil after grouting). Provide first-class quality, first-class reputation, first-class service to meet customers' needs!