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A platform for research: civil engineering, architecture and urbanism
Construction method for long miniature steel pipe pile of cataclastic rock
The invention discloses a construction method for long miniature steel pipe piles of cataclastic rock. The construction method comprises the steps that pile positions are measured and numbered; steel pipe pile processing and threading connection; the crawler-type hydraulic down-the-hole drill is positioned; drilling areas are divided, and drilling is conducted in sequence in a two-drilling-one mode; a detector scans and detects the hole forming quality, and the drilled hole is corrected; grouting and re-drilling holes are backfilled in the fractured rock stratum; installing the steel pipe piles; a single-liquid grouting machine is adopted for grouting, grouting liquid is M30 pure cement grout, a vertical cement grout mixing machine is adopted for stirring, the grouting water-cement ratio is 0.45-0.5, and the grouting pressure is 0.3 MPa-0. 5Mpa. In the method, a vehicle internal and external thread sleeving mode is adopted for the steel pipe pile, the on-site welding process is reduced, fire operation is reduced, and the construction process is simple and convenient.
本发明公开一种碎裂岩长微型钢管桩施工方法，包括：测量桩位并编号；钢管桩加工和套丝连接；将所述履带式液压潜孔钻定位；划分钻孔区域，采取隔二钻一方式依次钻孔；检测仪扫描检测成孔质量，修正钻孔；碎裂岩层中回填注浆重钻孔；安装钢管桩；采用单液注浆机注浆，其中，注浆液为M30纯水泥浆液，采用立式水泥浆拌合机搅拌，注浆水灰比为0.45～0.5，注浆压力为0.3Mpa～0.5Mpa，所述方法中钢管桩采用车内外丝套接方式，减少现场焊接工艺，减少动火作业，施工工艺简单方便。
Construction method for long miniature steel pipe pile of cataclastic rock
The invention discloses a construction method for long miniature steel pipe piles of cataclastic rock. The construction method comprises the steps that pile positions are measured and numbered; steel pipe pile processing and threading connection; the crawler-type hydraulic down-the-hole drill is positioned; drilling areas are divided, and drilling is conducted in sequence in a two-drilling-one mode; a detector scans and detects the hole forming quality, and the drilled hole is corrected; grouting and re-drilling holes are backfilled in the fractured rock stratum; installing the steel pipe piles; a single-liquid grouting machine is adopted for grouting, grouting liquid is M30 pure cement grout, a vertical cement grout mixing machine is adopted for stirring, the grouting water-cement ratio is 0.45-0.5, and the grouting pressure is 0.3 MPa-0. 5Mpa. In the method, a vehicle internal and external thread sleeving mode is adopted for the steel pipe pile, the on-site welding process is reduced, fire operation is reduced, and the construction process is simple and convenient.
本发明公开一种碎裂岩长微型钢管桩施工方法，包括：测量桩位并编号；钢管桩加工和套丝连接；将所述履带式液压潜孔钻定位；划分钻孔区域，采取隔二钻一方式依次钻孔；检测仪扫描检测成孔质量，修正钻孔；碎裂岩层中回填注浆重钻孔；安装钢管桩；采用单液注浆机注浆，其中，注浆液为M30纯水泥浆液，采用立式水泥浆拌合机搅拌，注浆水灰比为0.45～0.5，注浆压力为0.3Mpa～0.5Mpa，所述方法中钢管桩采用车内外丝套接方式，减少现场焊接工艺，减少动火作业，施工工艺简单方便。
Construction method for long miniature steel pipe pile of cataclastic rock
一种碎裂岩长微型钢管桩施工方法
MAO YUFEI (author) / XING JIANJUN (author) / WANG BIN (author) / ZHANG JIANWEI (author) / ZHU JUNYANG (author) / GUO ZENGHUI (author) / LI SHENGRUI (author)
2024-01-16
Patent
Electronic Resource
Chinese
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