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A platform for research: civil engineering, architecture and urbanism
Piling method for thick soil layer area
The invention discloses a pile driving method in a thick soil layer area, which comprises the following steps that S1, a static pile pressing method is matched with a water washing pile sinking method to drive a cylindrical outer protection piece with a conical base into a thick soil layer in advance, and the distance between the bottom of the conical base and a bedrock layer is less than 200mm; and S2, the conical base of the cylindrical outer protection piece is cut off, the bottom of the inner side of the cylindrical outer protection piece is manually cleaned, and the bedrock layer is exposed. The problem that in a thick soil layer area, a soil layer from the soil layer surface to the bed rock surface is in a fluid state, when a rotary drilling machine is withdrawn, surrounding soil can flow into a drill hole, and rotary drilling fails is solved.
本发明公开了一种厚土层地区打桩方法，包括以下步骤：S1、采用静力压桩法配合水冲沉桩法将具有锥形底座的筒形外护件预先打入厚土层，锥形底座的底部与基岩层的距离小于200mm；S2、将筒形外护件的锥形底座切割掉，并人工清理筒形外护件的内侧底部，露出基岩层。以解决厚土层地区，土层表面到基岩表面的土层为流体状，当旋挖机撤出时四周的土就会流到钻孔内，导致旋挖孔失败的问题。
Piling method for thick soil layer area
The invention discloses a pile driving method in a thick soil layer area, which comprises the following steps that S1, a static pile pressing method is matched with a water washing pile sinking method to drive a cylindrical outer protection piece with a conical base into a thick soil layer in advance, and the distance between the bottom of the conical base and a bedrock layer is less than 200mm; and S2, the conical base of the cylindrical outer protection piece is cut off, the bottom of the inner side of the cylindrical outer protection piece is manually cleaned, and the bedrock layer is exposed. The problem that in a thick soil layer area, a soil layer from the soil layer surface to the bed rock surface is in a fluid state, when a rotary drilling machine is withdrawn, surrounding soil can flow into a drill hole, and rotary drilling fails is solved.
本发明公开了一种厚土层地区打桩方法，包括以下步骤：S1、采用静力压桩法配合水冲沉桩法将具有锥形底座的筒形外护件预先打入厚土层，锥形底座的底部与基岩层的距离小于200mm；S2、将筒形外护件的锥形底座切割掉，并人工清理筒形外护件的内侧底部，露出基岩层。以解决厚土层地区，土层表面到基岩表面的土层为流体状，当旋挖机撤出时四周的土就会流到钻孔内，导致旋挖孔失败的问题。
Piling method for thick soil layer area
一种厚土层地区打桩方法
QIANG SHUANG (author) / MAO JICHENG (author) / LIAO PAN (author) / LI ZHONG (author) / LI YAPENG (author) / XIAO MINGCAI (author) / ZHANG ZEQIAN (author) / JIANG CHANGXIANG (author) / ZHANG GUOHE (author) / CHANG SHIHONG (author)
2024-07-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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