[Tianjin-strong high-pressure pump Co., Ltd. to recommend the star product] high pressure grouting pile foundation reinforcement construction Drilling: Drill installation holes according to the site, using the time on the ground or underground Accessible vertical drill Withdrawing grouting method This method Shenyang Churning bolt rig, which is characterized by: a uniform Shenyang Bolt Hole Jet rig, vertical drilling, easy to operate and control the slurry diffusion is more evenly distributed, strengthening good sealing effect. According stratigraphy drilling using high pressure water into the hole or the use of diamond drilling technology into the hole, a hole diameter Ф91-Ф130mm, drilling depth of not less than the design depth and to determine the depth of the pilot hole prevail. Hole control position error is less than 20mm, high-pressure water into the hole when the pressure control between 18-22MPa, when using the control mud weight alloy drill diamond drilling between 1.05 to 1.2, to ensure the integrity of the cell wall sex. Dual high pressure spraying pile seal Curtain double high-pressure jet grouting Pile Cofferdam construction method, which is suitable for the soil to a depth of 30 to 60m deep water Curtain or foundation reinforcement, the method comprising the steps of: sealing Curtain construction; design parameters; double high pressure spraying pile and select construction parameters. Effects of the present invention is a dual jet grouting method is to increase the plasma pressure in the traditional triple-tube Rotary Spray on, again injection punching the soil to form a larger diameter and filling. Solve the 40 ~ 60m deep foundation treatment over traditional process can not be a pile of technical problems, formed through mutual engagement between the vertical sealing curtain piles Jet Shenyang bolt rig, in the deep pit seepage and water proof and foundation reinforcement It can be successfully applied. Improve the ultra-deep water stop consolidation foundation treatment performance, increases the strength of the pile and impermeability, reduce the construction cost.