A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Pile repairing construction method for rotary cast-in-situ bored pile
The invention provides a pile repairing construction method for a rotary cast-in-situ bored pile, which comprises the step of performing pile repairing construction on an original pipe pile, and comprises the following specific construction steps: leveling a site, preparing slurry, measuring a cast-in-situ pile placing site, constructing a steel pipe casing, drilling, hoisting a reinforcement cage, hoisting a guide pipe, cleaning a hole, grouting and the like. The pile has the advantages that the flange is arranged on the middle pipe, soil on the upper portion is extruded and compacted when the steel pipe is driven, the risk that the steel pipe sinks after a drilled hole penetrates through the steel pipe is reduced, the upper portion is connected through the 9-meter tool section, the steel pipe can be pulled out and reused after concrete pouring is completed, the pile diameter of the upper portion of the pile head is increased after the tool section is pulled out, and the bearing capacity of the pile is improved.
本发明提供一种回旋钻孔灌注桩补桩施工方法，包括对原有管桩进行补桩施工，具体施工步骤包括场地平整、泥浆制备、测量放灌注桩位点、钢管护筒施工、钻孔、钢筋笼吊装、导管吊放、清孔以及注浆等；有益效果为：在中间管上设置法兰、在打入钢管时对上部土体挤压密实，减小在钻孔穿过钢管后钢管下沉的风险，上部采用9米工具节连接，本段钢管在混凝土灌注完成后可拔出重复使用，在工具节拔出后桩头上部桩径变大，提高该桩承载力。
Pile repairing construction method for rotary cast-in-situ bored pile
The invention provides a pile repairing construction method for a rotary cast-in-situ bored pile, which comprises the step of performing pile repairing construction on an original pipe pile, and comprises the following specific construction steps: leveling a site, preparing slurry, measuring a cast-in-situ pile placing site, constructing a steel pipe casing, drilling, hoisting a reinforcement cage, hoisting a guide pipe, cleaning a hole, grouting and the like. The pile has the advantages that the flange is arranged on the middle pipe, soil on the upper portion is extruded and compacted when the steel pipe is driven, the risk that the steel pipe sinks after a drilled hole penetrates through the steel pipe is reduced, the upper portion is connected through the 9-meter tool section, the steel pipe can be pulled out and reused after concrete pouring is completed, the pile diameter of the upper portion of the pile head is increased after the tool section is pulled out, and the bearing capacity of the pile is improved.
本发明提供一种回旋钻孔灌注桩补桩施工方法，包括对原有管桩进行补桩施工，具体施工步骤包括场地平整、泥浆制备、测量放灌注桩位点、钢管护筒施工、钻孔、钢筋笼吊装、导管吊放、清孔以及注浆等；有益效果为：在中间管上设置法兰、在打入钢管时对上部土体挤压密实，减小在钻孔穿过钢管后钢管下沉的风险，上部采用9米工具节连接，本段钢管在混凝土灌注完成后可拔出重复使用，在工具节拔出后桩头上部桩径变大，提高该桩承载力。
Pile repairing construction method for rotary cast-in-situ bored pile
一种回旋钻孔灌注桩补桩施工方法
XIAO XIANGYANG (author) / LI JUNYU (author) / WANG DENGSHOU (author)
2023-06-23
Patent
Electronic Resource
Chinese
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