Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of foundation in karst area
The invention discloses a construction method of a foundation in a karst area. The construction method comprises the steps of arranging a cylindrical steel coaming at the position of a pile body containing a karst cave, by a drill hole as the center, beating the steel coaming, enabling the bottom end of the steel coaming to penetrate through the karst cave until the steel coaming is inserted intoa stable rock stratum, wherein a formed small space is convenient to fill, and continuing to perform deepening of the drill hole, until the stable rock stratum is reached; forming main pipes in the drill holes, forming a plurality of micropores between the steel coaming and the main piles in a spacing manner, assisting in stuffing of the karst cave space defined by the steel coaming, and forming micro-piles in the micropores; and forming a pile hole in the position not containing the karst cave, of the pile body, and forming a cast-in-place pile in the pile hole. The method has the beneficialeffects that the foundation stability and bearing capacity are improved, and the construction quality is reliable.
本发明公开了一种岩溶地区地基的施工方法，在包含溶洞的桩体位置，通过以钻孔为中心设置圆筒状的钢围板，并击打钢围板使其底端穿过溶洞直至插入稳定岩层，形成的较小空间便于填充，继续加深钻孔直至稳定岩层，并在钻孔内形成主桩，在钢围板与主桩之间间隔设置多个微孔，辅助钢围板围成的溶洞空间的填充，并在微孔内形成微桩；在不包含溶洞的桩体位置形成桩孔，并在桩孔内形成灌注桩。本发明具有提高地基稳定性和承载能力，施工质量可靠的有益效果。
Construction method of foundation in karst area
The invention discloses a construction method of a foundation in a karst area. The construction method comprises the steps of arranging a cylindrical steel coaming at the position of a pile body containing a karst cave, by a drill hole as the center, beating the steel coaming, enabling the bottom end of the steel coaming to penetrate through the karst cave until the steel coaming is inserted intoa stable rock stratum, wherein a formed small space is convenient to fill, and continuing to perform deepening of the drill hole, until the stable rock stratum is reached; forming main pipes in the drill holes, forming a plurality of micropores between the steel coaming and the main piles in a spacing manner, assisting in stuffing of the karst cave space defined by the steel coaming, and forming micro-piles in the micropores; and forming a pile hole in the position not containing the karst cave, of the pile body, and forming a cast-in-place pile in the pile hole. The method has the beneficialeffects that the foundation stability and bearing capacity are improved, and the construction quality is reliable.
本发明公开了一种岩溶地区地基的施工方法，在包含溶洞的桩体位置，通过以钻孔为中心设置圆筒状的钢围板，并击打钢围板使其底端穿过溶洞直至插入稳定岩层，形成的较小空间便于填充，继续加深钻孔直至稳定岩层，并在钻孔内形成主桩，在钢围板与主桩之间间隔设置多个微孔，辅助钢围板围成的溶洞空间的填充，并在微孔内形成微桩；在不包含溶洞的桩体位置形成桩孔，并在桩孔内形成灌注桩。本发明具有提高地基稳定性和承载能力，施工质量可靠的有益效果。
Construction method of foundation in karst area
岩溶地区地基的施工方法
YU GENSHE (Autor:in) / DING JIE (Autor:in) / FENG YU (Autor:in) / HU XIPENG (Autor:in) / WANG YANAN (Autor:in)
03.11.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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