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A platform for research: civil engineering, architecture and urbanism
Method for processing hole collapse of cast-in-place pile in super-thick caving zone stratum
The invention discloses a cast-in-place pile collapse hole treatment method in a super-thick caving zone stratum, and relates to the technical field of geotechnical engineering. A carrier plate, a rotating frame, a drilling barrel, a gradually-expanding drill bit and a compaction mechanism are matched to treat the collapsed hole of the cast-in-place pile, the upper end face of the carrier plate is fixedly connected with the rotating frame through an electric telescopic rod, the drilling barrel is rotationally connected into the rotating frame, the gradually-expanding drill bit used for expanding the collapsed hole is fixedly installed on the lower portion of the drilling barrel, and the compaction mechanism is installed in the drilling barrel. The gradually-expanding drill bit comprises an outer arc ring and an L-shaped push rod, wherein the outer arc ring is slidably connected to the sliding rod set and is in threaded connection with the conical stud, and the L-shaped push rod is fixedly connected to the outer arc ring and is slidably connected with the hole expanding column. The hole collapse area can be thoroughly emptied, meanwhile, secondary hole collapse is avoided, the hole collapse area can be compacted and reinforced, and the strength of the treated cast-in-place pile is improved.
本发明公开了一种超厚冒落带地层中灌注桩塌孔处理方法，本发明涉及岩土工程技术领域。由载板、转动架、钻筒、渐扩式钻头和压实机构配合对灌注桩塌孔处理，载板上端面通过电动伸缩杆固定连接有转动架，转动架内部转动连接有钻筒，钻筒下部固定安装有用于对塌孔处扩孔的渐扩式钻头，钻筒内部安装有压实机构，渐扩式钻头包括滑动连接在滑杆组上且与锥状螺柱螺纹连接的外弧环以及固定连接在外弧环上且与扩孔柱滑动连接的L形推杆，本发明通过由内之外逐渐伸长的扩孔柱循循渐进的对塌孔区中的泥土进行搅动，能够对塌孔区彻底搅空的同时避免二次塌孔的发生，且还能够对塌孔区进行压实加固，提高了处理后的灌注桩的强度。
Method for processing hole collapse of cast-in-place pile in super-thick caving zone stratum
The invention discloses a cast-in-place pile collapse hole treatment method in a super-thick caving zone stratum, and relates to the technical field of geotechnical engineering. A carrier plate, a rotating frame, a drilling barrel, a gradually-expanding drill bit and a compaction mechanism are matched to treat the collapsed hole of the cast-in-place pile, the upper end face of the carrier plate is fixedly connected with the rotating frame through an electric telescopic rod, the drilling barrel is rotationally connected into the rotating frame, the gradually-expanding drill bit used for expanding the collapsed hole is fixedly installed on the lower portion of the drilling barrel, and the compaction mechanism is installed in the drilling barrel. The gradually-expanding drill bit comprises an outer arc ring and an L-shaped push rod, wherein the outer arc ring is slidably connected to the sliding rod set and is in threaded connection with the conical stud, and the L-shaped push rod is fixedly connected to the outer arc ring and is slidably connected with the hole expanding column. The hole collapse area can be thoroughly emptied, meanwhile, secondary hole collapse is avoided, the hole collapse area can be compacted and reinforced, and the strength of the treated cast-in-place pile is improved.
本发明公开了一种超厚冒落带地层中灌注桩塌孔处理方法，本发明涉及岩土工程技术领域。由载板、转动架、钻筒、渐扩式钻头和压实机构配合对灌注桩塌孔处理，载板上端面通过电动伸缩杆固定连接有转动架，转动架内部转动连接有钻筒，钻筒下部固定安装有用于对塌孔处扩孔的渐扩式钻头，钻筒内部安装有压实机构，渐扩式钻头包括滑动连接在滑杆组上且与锥状螺柱螺纹连接的外弧环以及固定连接在外弧环上且与扩孔柱滑动连接的L形推杆，本发明通过由内之外逐渐伸长的扩孔柱循循渐进的对塌孔区中的泥土进行搅动，能够对塌孔区彻底搅空的同时避免二次塌孔的发生，且还能够对塌孔区进行压实加固，提高了处理后的灌注桩的强度。
Method for processing hole collapse of cast-in-place pile in super-thick caving zone stratum
一种超厚冒落带地层中灌注桩塌孔处理方法
LIU BO (author) / XU ZHAORUI (author) / LI RUIJIE (author) / JIANG JINFENG (author) / WU LUHUA (author) / GONG LIPING (author)
2024-02-06
Patent
Electronic Resource
Chinese
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