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Construction method for treating overwater large-diameter pile foundation slurry leakage through high-pressure jet grouting pile waterproof curtain
The invention relates to the technical field of pile foundation slurry leakage plugging, and provides a construction method for treating overwater large-diameter pile foundation slurry leakage through a high-pressure jet grouting pile waterproof curtain, and the construction method comprises the following steps: S1, determining a jet grouting pile drilling hole position on the periphery of a steel casing, and measuring and setting out the hole position; s3, inner ring waterproof curtain construction is conducted, specifically, jet grouting piles which are meshed with each other are hit around the periphery of the steel casing on the coarse sand layer through the jet grouting drilling machine, so that the inner ring waterproof curtain is formed; s4, outer-ring waterproof curtain construction is conducted, specifically, jet grouting piles which are meshed with each other are driven on the coarse sand layer around the periphery of the inner-ring waterproof curtain through a jet grouting drilling machine to form the outer-ring waterproof curtain; the bottom ends of the jet grouting piles penetrate into a rock layer; s5, the rotary spraying drilling machine is removed; the structure has the effect of stably blocking slurry leakage channels such as spring holes of the coarse sand layer.
本申请涉及桩基漏浆封堵的技术领域，提出了一种高压旋喷桩止水帷幕处理水上大直径桩基漏浆的施工方法，包括以下步骤：S1：在钢护筒外周确定旋喷桩钻孔孔位并对孔位测量放线；S2：旋喷钻机就位：S3：内环止水帷幕施工：通过旋喷钻机在粗砂层环绕钢护筒外周施打相互咬合的旋喷桩以形成内环止水帷幕；S4：外环止水帷幕施工：通过旋喷钻机在粗砂层环绕内环止水帷幕外周施打相互咬合的旋喷桩以形成外环止水帷幕；旋喷桩底端穿入至岩石层；S5：移除旋喷钻机；本申请具有稳固封堵粗砂层的泉眼等漏浆通道的效果。
Construction method for treating overwater large-diameter pile foundation slurry leakage through high-pressure jet grouting pile waterproof curtain
The invention relates to the technical field of pile foundation slurry leakage plugging, and provides a construction method for treating overwater large-diameter pile foundation slurry leakage through a high-pressure jet grouting pile waterproof curtain, and the construction method comprises the following steps: S1, determining a jet grouting pile drilling hole position on the periphery of a steel casing, and measuring and setting out the hole position; s3, inner ring waterproof curtain construction is conducted, specifically, jet grouting piles which are meshed with each other are hit around the periphery of the steel casing on the coarse sand layer through the jet grouting drilling machine, so that the inner ring waterproof curtain is formed; s4, outer-ring waterproof curtain construction is conducted, specifically, jet grouting piles which are meshed with each other are driven on the coarse sand layer around the periphery of the inner-ring waterproof curtain through a jet grouting drilling machine to form the outer-ring waterproof curtain; the bottom ends of the jet grouting piles penetrate into a rock layer; s5, the rotary spraying drilling machine is removed; the structure has the effect of stably blocking slurry leakage channels such as spring holes of the coarse sand layer.
本申请涉及桩基漏浆封堵的技术领域，提出了一种高压旋喷桩止水帷幕处理水上大直径桩基漏浆的施工方法，包括以下步骤：S1：在钢护筒外周确定旋喷桩钻孔孔位并对孔位测量放线；S2：旋喷钻机就位：S3：内环止水帷幕施工：通过旋喷钻机在粗砂层环绕钢护筒外周施打相互咬合的旋喷桩以形成内环止水帷幕；S4：外环止水帷幕施工：通过旋喷钻机在粗砂层环绕内环止水帷幕外周施打相互咬合的旋喷桩以形成外环止水帷幕；旋喷桩底端穿入至岩石层；S5：移除旋喷钻机；本申请具有稳固封堵粗砂层的泉眼等漏浆通道的效果。
Construction method for treating overwater large-diameter pile foundation slurry leakage through high-pressure jet grouting pile waterproof curtain
DENG XIAOFENG / XUE QIANG / SUN GUANGHUI / WANG CHAO / RONG MIN / LIU LISHENG / TAN PENG / YIN YICHAO / CHENG CHAOLONG
Patent
Electronic Resource
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