A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Pile forming method of solidified soil pouring core-adding pile for deep collapsible loess
The invention belongs to the technical field of civil engineering, and discloses a method for forming a solidified soil pouring cored pile for deep collapsible loess. The pile forming method comprises the following steps that (1) drilling and soil taking are conducted on the deep collapsible loess foundation, pile holes are formed, and collapsible loess is obtained; (2) mixing the collapsible loess with water, a curing material, a dispersing agent and a reinforcing agent in sequence to obtain flow-state cured soil; and 3) inserting the prefabricated reinforced concrete core pile into the pile hole and keeping the prefabricated reinforced concrete core pile vertical to the pile hole, and pouring the flow-state solidified soil into the pile hole to form the solidified soil pouring core pile. In-situ soil sampling is carried out on the deep collapsible loess, the deep collapsible loess is prepared into the fluid-state solidified soil meeting the fluidity requirement, then the core-adding pile forming technology of first core inserting and then pouring is adopted, the composite foundation meeting the foundation bearing capacity is formed, and important popularization value is achieved in the northwest region.
本发明属于土木工程技术领域，公开了一种针对深厚湿陷性黄土的固化土灌注加芯桩成桩方法。所述成桩方法包括以下步骤：1)对深厚湿陷性黄土地基进行钻孔取土，形成桩孔并得到湿陷性黄土；2)将湿陷性黄土与水、固化料、分散剂、补强剂依次混合，得到流态固化土；3)将预制钢筋混凝土芯桩插入桩孔中并保持垂直，再向桩孔中灌注流态固化土，形成固化土灌注加芯桩。本发明对深厚湿陷性黄土进行原位取土，将其制备成满足流动度要求的流态固化土，再采用“先插芯后灌注”的加芯桩成桩工艺，形成满足地基承载力的复合地基，在西北地区具有重要的推广价值。
Pile forming method of solidified soil pouring core-adding pile for deep collapsible loess
The invention belongs to the technical field of civil engineering, and discloses a method for forming a solidified soil pouring cored pile for deep collapsible loess. The pile forming method comprises the following steps that (1) drilling and soil taking are conducted on the deep collapsible loess foundation, pile holes are formed, and collapsible loess is obtained; (2) mixing the collapsible loess with water, a curing material, a dispersing agent and a reinforcing agent in sequence to obtain flow-state cured soil; and 3) inserting the prefabricated reinforced concrete core pile into the pile hole and keeping the prefabricated reinforced concrete core pile vertical to the pile hole, and pouring the flow-state solidified soil into the pile hole to form the solidified soil pouring core pile. In-situ soil sampling is carried out on the deep collapsible loess, the deep collapsible loess is prepared into the fluid-state solidified soil meeting the fluidity requirement, then the core-adding pile forming technology of first core inserting and then pouring is adopted, the composite foundation meeting the foundation bearing capacity is formed, and important popularization value is achieved in the northwest region.
本发明属于土木工程技术领域，公开了一种针对深厚湿陷性黄土的固化土灌注加芯桩成桩方法。所述成桩方法包括以下步骤：1)对深厚湿陷性黄土地基进行钻孔取土，形成桩孔并得到湿陷性黄土；2)将湿陷性黄土与水、固化料、分散剂、补强剂依次混合，得到流态固化土；3)将预制钢筋混凝土芯桩插入桩孔中并保持垂直，再向桩孔中灌注流态固化土，形成固化土灌注加芯桩。本发明对深厚湿陷性黄土进行原位取土，将其制备成满足流动度要求的流态固化土，再采用“先插芯后灌注”的加芯桩成桩工艺，形成满足地基承载力的复合地基，在西北地区具有重要的推广价值。
Pile forming method of solidified soil pouring core-adding pile for deep collapsible loess
一种针对深厚湿陷性黄土的固化土灌注加芯桩成桩方法
XIAO ZUNQUN (author) / CHANG YANBIN (author) / XU CAIYUN (author) / WANG FUQI (author) / DENG MINGHUI (author) / LI PUYU (author) / ZHENG YUEPENG (author) / WANG HUI (author) / LYU ZHENTAO (author) / LIU HAITAO (author)
2023-06-09
Patent
Electronic Resource
Chinese
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