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A platform for research: civil engineering, architecture and urbanism
Double-power down-the-hole hammer pipe-following drilling pile-forming construction method for cast-in-place pile in deep and thick rock-filled layer
The invention relates to the technical field of pile-forming construction methods, and discloses a double-power down-the-hole hammer follow-pipe drilling pile-forming construction method for a cast-in-place pile of a deep and thick rock-filled layer, which comprises the following steps: leveling a construction site, and placing a down-the-hole hammer drilling machine in place; the down-the-hole hammer drilling machine is provided with a drill rod, an inner through hole is formed in the drill rod, a down-the-hole hammer is arranged at the bottom of the drill rod, the drill rod is sleeved with a steel sleeve, and the inner through hole is communicated with an air compressor through an air inlet pipe. The outer side power head drives the steel sleeve to rotate, the steel sleeve drills in advance in the soil layer, high-pressure gas is injected into the inner through hole, the inner side power head drives the drill rod and the down-the-hole hammer to drill along with the pipe, and an upper layer hole is formed in the soil layer; high-pressure gas is injected into the inner through hole, the down-the-hole hammer drills in advance in the rock-filled layer, the steel sleeve drills along with the steel sleeve until the bottom of the steel sleeve abuts against the rock stratum, and a middle-layer hole is formed in the rock-filled layer; and high-pressure gas is injected into the inner through hole, the down-the-hole hammer drills in the rock stratum till the down-the-hole hammer drills to the set depth, a pile hole is formed, a reinforcement cage is put in, concrete is poured, and a pile body is formed.
本发明涉及成桩施工方法的技术领域，公开了深厚填石层灌注桩双动力潜孔锤跟管钻进成桩施工方法，包括平整施工场地，潜孔锤钻机就位；潜孔锤钻机具有钻杆，钻杆中具有内通孔，钻杆的底部具有潜孔锤，钻杆外套设有钢套管，内通孔通过进气管与空压机连通；外侧动力头驱动钢套管转动，钢套管在土层中超前钻进，往内通孔注入高压气体，内侧动力头驱动钻杆和潜孔锤跟管钻进，土层中形成上层孔；往内通孔注入高压气体，潜孔锤在填石层中超前钻进，钢套管跟管钻进，直至钢套管的底部抵接在岩层上，填石层中形成中层孔；往内通孔注入高压气体，潜孔锤在岩层中钻进，直至潜孔锤钻进至设定深度，形成桩孔，下入钢筋笼，灌注混凝土，形成桩身。
Double-power down-the-hole hammer pipe-following drilling pile-forming construction method for cast-in-place pile in deep and thick rock-filled layer
The invention relates to the technical field of pile-forming construction methods, and discloses a double-power down-the-hole hammer follow-pipe drilling pile-forming construction method for a cast-in-place pile of a deep and thick rock-filled layer, which comprises the following steps: leveling a construction site, and placing a down-the-hole hammer drilling machine in place; the down-the-hole hammer drilling machine is provided with a drill rod, an inner through hole is formed in the drill rod, a down-the-hole hammer is arranged at the bottom of the drill rod, the drill rod is sleeved with a steel sleeve, and the inner through hole is communicated with an air compressor through an air inlet pipe. The outer side power head drives the steel sleeve to rotate, the steel sleeve drills in advance in the soil layer, high-pressure gas is injected into the inner through hole, the inner side power head drives the drill rod and the down-the-hole hammer to drill along with the pipe, and an upper layer hole is formed in the soil layer; high-pressure gas is injected into the inner through hole, the down-the-hole hammer drills in advance in the rock-filled layer, the steel sleeve drills along with the steel sleeve until the bottom of the steel sleeve abuts against the rock stratum, and a middle-layer hole is formed in the rock-filled layer; and high-pressure gas is injected into the inner through hole, the down-the-hole hammer drills in the rock stratum till the down-the-hole hammer drills to the set depth, a pile hole is formed, a reinforcement cage is put in, concrete is poured, and a pile body is formed.
本发明涉及成桩施工方法的技术领域，公开了深厚填石层灌注桩双动力潜孔锤跟管钻进成桩施工方法，包括平整施工场地，潜孔锤钻机就位；潜孔锤钻机具有钻杆，钻杆中具有内通孔，钻杆的底部具有潜孔锤，钻杆外套设有钢套管，内通孔通过进气管与空压机连通；外侧动力头驱动钢套管转动，钢套管在土层中超前钻进，往内通孔注入高压气体，内侧动力头驱动钻杆和潜孔锤跟管钻进，土层中形成上层孔；往内通孔注入高压气体，潜孔锤在填石层中超前钻进，钢套管跟管钻进，直至钢套管的底部抵接在岩层上，填石层中形成中层孔；往内通孔注入高压气体，潜孔锤在岩层中钻进，直至潜孔锤钻进至设定深度，形成桩孔，下入钢筋笼，灌注混凝土，形成桩身。
Double-power down-the-hole hammer pipe-following drilling pile-forming construction method for cast-in-place pile in deep and thick rock-filled layer
深厚填石层灌注桩双动力潜孔锤跟管钻进成桩施工方法
DENG NAIYUN (author) / WANG XINJUN (author) / TANG WENPING (author) / XIAO MU (author) / LEI BIN (author) / LIAO QIMING (author) / WANG TONG (author) / WANG ZHIGANG (author) / HUANG XIAOKAI (author) / MO SENSHENG (author)
2024-05-07
Patent
Electronic Resource
Chinese
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