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A platform for research: civil engineering, architecture and urbanism
Construction method for gravel pile of thick dyke layer
The invention provides a construction method for a gravel pile of a thick embankment layer, which comprises the following steps of: in a field after backfilling and flattening gravel materials, starting a down-the-hole hammer to lead a whole riprap layer above a hole in a construction area, lifting a drill bit after a steel casing follows up to the bottom of the riprap layer, and backfilling and pulling out a sleeve to complete the hole lead; pile forming construction of the gravel pile is completed through material supplementing; and after the pile machine moves, a cushion layer is laid on the gravel pile, and the compactness effect of the gravel pile is detected through a dynamic penetration method. The down-the-hole hammer and the steel pile casing are combined, so that the interior of the hole is kept stable, the time of repeated drilling of the down-the-hole hammer and auxiliary sinking of the pile casing by a vibratory hammer is saved, the hole forming construction progress is accelerated, and the down-the-hole hammer pile casing follow-up construction method can achieve the efficiency of forming a pile and leading 5-9 holes in one day.
本发明提供了用于厚堤层碎石桩的施工方法，包括以下步骤，于砂石料回填平整后的场地中，对施工区域开始潜孔锤引孔上卧全部抛石层，钢护筒跟进至抛石层底部后提升钻头，回填并拔出套管以完成引孔；通过补料完成碎石桩的成桩施工；桩机移位后，在碎石桩上铺设垫层，并通过动力触探方法检测碎石桩密实度效果。本发明通过结合潜孔锤和钢护筒，使得孔内保持稳定，免去潜孔锤重复钻进和振动锤辅助下沉护筒的时间，加快成孔施工进度，潜孔锤护筒跟进工法可实现1天成桩引孔5‑9根的效率。
Construction method for gravel pile of thick dyke layer
The invention provides a construction method for a gravel pile of a thick embankment layer, which comprises the following steps of: in a field after backfilling and flattening gravel materials, starting a down-the-hole hammer to lead a whole riprap layer above a hole in a construction area, lifting a drill bit after a steel casing follows up to the bottom of the riprap layer, and backfilling and pulling out a sleeve to complete the hole lead; pile forming construction of the gravel pile is completed through material supplementing; and after the pile machine moves, a cushion layer is laid on the gravel pile, and the compactness effect of the gravel pile is detected through a dynamic penetration method. The down-the-hole hammer and the steel pile casing are combined, so that the interior of the hole is kept stable, the time of repeated drilling of the down-the-hole hammer and auxiliary sinking of the pile casing by a vibratory hammer is saved, the hole forming construction progress is accelerated, and the down-the-hole hammer pile casing follow-up construction method can achieve the efficiency of forming a pile and leading 5-9 holes in one day.
本发明提供了用于厚堤层碎石桩的施工方法，包括以下步骤，于砂石料回填平整后的场地中，对施工区域开始潜孔锤引孔上卧全部抛石层，钢护筒跟进至抛石层底部后提升钻头，回填并拔出套管以完成引孔；通过补料完成碎石桩的成桩施工；桩机移位后，在碎石桩上铺设垫层，并通过动力触探方法检测碎石桩密实度效果。本发明通过结合潜孔锤和钢护筒，使得孔内保持稳定，免去潜孔锤重复钻进和振动锤辅助下沉护筒的时间，加快成孔施工进度，潜孔锤护筒跟进工法可实现1天成桩引孔5‑9根的效率。
Construction method for gravel pile of thick dyke layer
用于厚堤层碎石桩的施工方法
BI HONGWU (author) / WU CHUNLIN (author) / LUO QI (author) / YANG LEI (author) / YU SHUAISHUAI (author) / LIU FAN (author) / MIAO JIANZHONG (author) / SUN DECHANG (author) / ZHANG JIANPENG (author) / BO HAI (author)
2024-12-13
Patent
Electronic Resource
Chinese
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