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A platform for research: civil engineering, architecture and urbanism
Karst foundation variable-rigidity child-mother pile and construction method thereof
The invention discloses a karst foundation variable-rigidity child-mother pile and a construction method thereof. The variable-rigidity child-mother pile comprises a plurality of root piles, geogrid cages and a solidified soil mother pile; and the root piles and the geogrid cages are arranged in the solidified soil mother piles, the solidified soil mother piles are arranged in an overlying soft soil layer of a karst foundation, the upper portions of the root piles are located in the geogrid cages, and the axes of the root piles are parallel to the axes of the geogrid cages. The karst foundation variable-rigidity child-mother pile is high in single-pile bearing capacity, reasonable in pile body stress, few in used materials, easy to construct, free of mud protection walls, available in original rock-soil strength, capable of being designed into a single-column single pile, low in cost and capable of replacing an existing rock-socketed cast-in-place pile to be applied to pile foundationengineering of the karst foundation.
本发明公开了一种岩溶地基变刚度子母桩及其施工方法。变刚度子母桩包括若干树根桩、土工格栅笼及固化土母桩；所述树根桩和土工格栅笼设置在固化土母桩内，固化土母桩置于岩溶地基的上覆软土层中，树根桩的上部位于土工格栅笼内，树根桩的轴线平行于土工格栅笼的轴线。本发明的岩溶地基变刚度子母桩单桩承载力高、桩身受力合理、用材少、施工简单、无需泥浆护壁、原岩土强度可利用、可设计成单柱单桩、成本低，可替代现有的嵌岩灌注桩应用于岩溶地基的桩基工程。
Karst foundation variable-rigidity child-mother pile and construction method thereof
The invention discloses a karst foundation variable-rigidity child-mother pile and a construction method thereof. The variable-rigidity child-mother pile comprises a plurality of root piles, geogrid cages and a solidified soil mother pile; and the root piles and the geogrid cages are arranged in the solidified soil mother piles, the solidified soil mother piles are arranged in an overlying soft soil layer of a karst foundation, the upper portions of the root piles are located in the geogrid cages, and the axes of the root piles are parallel to the axes of the geogrid cages. The karst foundation variable-rigidity child-mother pile is high in single-pile bearing capacity, reasonable in pile body stress, few in used materials, easy to construct, free of mud protection walls, available in original rock-soil strength, capable of being designed into a single-column single pile, low in cost and capable of replacing an existing rock-socketed cast-in-place pile to be applied to pile foundationengineering of the karst foundation.
本发明公开了一种岩溶地基变刚度子母桩及其施工方法。变刚度子母桩包括若干树根桩、土工格栅笼及固化土母桩；所述树根桩和土工格栅笼设置在固化土母桩内，固化土母桩置于岩溶地基的上覆软土层中，树根桩的上部位于土工格栅笼内，树根桩的轴线平行于土工格栅笼的轴线。本发明的岩溶地基变刚度子母桩单桩承载力高、桩身受力合理、用材少、施工简单、无需泥浆护壁、原岩土强度可利用、可设计成单柱单桩、成本低，可替代现有的嵌岩灌注桩应用于岩溶地基的桩基工程。
Karst foundation variable-rigidity child-mother pile and construction method thereof
一种岩溶地基变刚度子母桩及其施工方法
LI RENPING (author) / ZHOU JI (author)
2020-12-08
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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