Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of dynamic compaction block stone bench replacement composite foundation
The invention discloses a construction method of a dynamic compaction block stone bench replacement composite foundation. The construction method includes the steps that surface sundries of an original soft soil layer are removed, and a site is leveled; pile positions of gravel piles needing to be replaced and filled are marked; open steel pipes are driven to the designed depth at the pile positions, then soft soil in the pipes is taken out through a soil sampler, gravel is used for layered backfill and compaction to form the gravel piles, and the gravel piles and surrounding soft soil form asoft soil gravel pile replacement and filling composite foundation; filling construction is carried out on the soft soil gravel pile replacement composite foundation, and large stones are used as filler and are filled to the designed elevation through a layered filling and dynamic compaction construction process; dynamic compaction is adopted to enable a large stone filling body to form a hard shell layer, wherein the hard shell layer and the gravel piles in the lower soft soil gravel pile replacement composite foundation jointly form the dynamic compaction block stone bench replacement composite foundation; and the consolidation degree of the dynamic compaction block stone bench replacement composite foundation is calculated. Therefore, the problems that according to an existing soft soilgravel pile replacement composite foundation treatment method, the elevation is too low, the foundation bearing capacity is low, and post-construction settlement is large are solved.
本发明公开了一种强夯块石凳换填复合地基施工方法，它包括清除原始软土地层的地表杂物并平整场地；标出需要换填碎石桩的桩位；在桩位处将开口钢管打入至设计深度，然后用取土器取出管内软土，再用碎石分层回填压密形成碎石桩，碎石桩与周围软土构成软土碎石桩换填复合地基；在软土碎石桩换填复合地基上进行填方施工，用大块石作为填料采用分层填筑强夯的施工工艺填筑到设计标高；采用强夯使大块石填方体形成硬壳层，硬壳层与下部软土碎石桩换填复合地基中的碎石桩共同构成强夯块石凳换填复合地基；对强夯块石凳换填复合地基的固结度进行计算；解决了现有软土碎石桩换填复合地基处理方法其标高过低、地基承载力较低、工后沉降大的问题。
Construction method of dynamic compaction block stone bench replacement composite foundation
The invention discloses a construction method of a dynamic compaction block stone bench replacement composite foundation. The construction method includes the steps that surface sundries of an original soft soil layer are removed, and a site is leveled; pile positions of gravel piles needing to be replaced and filled are marked; open steel pipes are driven to the designed depth at the pile positions, then soft soil in the pipes is taken out through a soil sampler, gravel is used for layered backfill and compaction to form the gravel piles, and the gravel piles and surrounding soft soil form asoft soil gravel pile replacement and filling composite foundation; filling construction is carried out on the soft soil gravel pile replacement composite foundation, and large stones are used as filler and are filled to the designed elevation through a layered filling and dynamic compaction construction process; dynamic compaction is adopted to enable a large stone filling body to form a hard shell layer, wherein the hard shell layer and the gravel piles in the lower soft soil gravel pile replacement composite foundation jointly form the dynamic compaction block stone bench replacement composite foundation; and the consolidation degree of the dynamic compaction block stone bench replacement composite foundation is calculated. Therefore, the problems that according to an existing soft soilgravel pile replacement composite foundation treatment method, the elevation is too low, the foundation bearing capacity is low, and post-construction settlement is large are solved.
本发明公开了一种强夯块石凳换填复合地基施工方法，它包括清除原始软土地层的地表杂物并平整场地；标出需要换填碎石桩的桩位；在桩位处将开口钢管打入至设计深度，然后用取土器取出管内软土，再用碎石分层回填压密形成碎石桩，碎石桩与周围软土构成软土碎石桩换填复合地基；在软土碎石桩换填复合地基上进行填方施工，用大块石作为填料采用分层填筑强夯的施工工艺填筑到设计标高；采用强夯使大块石填方体形成硬壳层，硬壳层与下部软土碎石桩换填复合地基中的碎石桩共同构成强夯块石凳换填复合地基；对强夯块石凳换填复合地基的固结度进行计算；解决了现有软土碎石桩换填复合地基处理方法其标高过低、地基承载力较低、工后沉降大的问题。
Construction method of dynamic compaction block stone bench replacement composite foundation
一种强夯块石凳换填复合地基施工方法
SHEN ZHIPING (Autor:in) / SONG ERXIANG (Autor:in) / FU JUNYI (Autor:in) / XU MING (Autor:in) / LIU HUI (Autor:in) / YU YONGKANG (Autor:in) / LI ZHENQING (Autor:in) / LIAN JIANGBO (Autor:in)
26.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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