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A platform for research: civil engineering, architecture and urbanism
Foundation construction method based on microorganism solidified fine-grained soil
The invention provides a foundation construction method based on microorganism solidified fine-grained soil, and belongs to the technical field of soil solidification, and the foundation construction method comprises the following steps: mixing fine-grained soil with powdery calcium acetate and urea, covering a sealing film after mixing, and standing for a period of time; drilling is conducted on the ground, the inner wall of a drilled hole is coated with powdery calcium acetate and urea after drilling is completed, and sufficient bacterial liquid is injected into the inner wall through the inserting needle. And the supporting pipe is positioned in the drill hole, the fine-grained soil obtained after standing and the bacterial liquid are fully stirred, and after stirring is completed, the fine-grained soil and the bacterial liquid are gradually filled and compacted between the supporting pipe and the inner wall. And finally, the inner wall and the compacted fine-grained soil are solidified into an integrated structure to jointly support and position the supporting pipe. According to the foundation construction method based on the microorganism solidified fine-grained soil, the maximum bearing capacity of the pile is improved, stability of structures and the like on the ground is guaranteed, safety is guaranteed, and sedimentation is reduced.
本发明提供了一种基于微生物固化细粒土的地基施工方法，属于土体固化技术领域，包括：将细粒土与粉状乙酸钙和尿素进行拌合，在拌合完成后覆盖密封膜静置一段时间；在地面进行钻孔，钻孔完成之后向钻孔的内壁涂覆粉状乙酸钙和尿素，通过插针向内壁内注入足量的菌液。将支撑管定位在钻孔内，将静置完成后的细粒土与菌液进行充分的搅拌并且在搅拌完成之后逐步的填充并压实在支撑管与内壁之间。向支撑管内进行注浆，最终内壁以及压实的细粒土固化为一体结构共同支撑并定位支撑管。本发明提供的一种基于微生物固化细粒土的地基施工方法提高了桩最大的承载力，确保地面上构筑物等的稳定，保证了安全降低了沉降。
Foundation construction method based on microorganism solidified fine-grained soil
The invention provides a foundation construction method based on microorganism solidified fine-grained soil, and belongs to the technical field of soil solidification, and the foundation construction method comprises the following steps: mixing fine-grained soil with powdery calcium acetate and urea, covering a sealing film after mixing, and standing for a period of time; drilling is conducted on the ground, the inner wall of a drilled hole is coated with powdery calcium acetate and urea after drilling is completed, and sufficient bacterial liquid is injected into the inner wall through the inserting needle. And the supporting pipe is positioned in the drill hole, the fine-grained soil obtained after standing and the bacterial liquid are fully stirred, and after stirring is completed, the fine-grained soil and the bacterial liquid are gradually filled and compacted between the supporting pipe and the inner wall. And finally, the inner wall and the compacted fine-grained soil are solidified into an integrated structure to jointly support and position the supporting pipe. According to the foundation construction method based on the microorganism solidified fine-grained soil, the maximum bearing capacity of the pile is improved, stability of structures and the like on the ground is guaranteed, safety is guaranteed, and sedimentation is reduced.
本发明提供了一种基于微生物固化细粒土的地基施工方法，属于土体固化技术领域，包括：将细粒土与粉状乙酸钙和尿素进行拌合，在拌合完成后覆盖密封膜静置一段时间；在地面进行钻孔，钻孔完成之后向钻孔的内壁涂覆粉状乙酸钙和尿素，通过插针向内壁内注入足量的菌液。将支撑管定位在钻孔内，将静置完成后的细粒土与菌液进行充分的搅拌并且在搅拌完成之后逐步的填充并压实在支撑管与内壁之间。向支撑管内进行注浆，最终内壁以及压实的细粒土固化为一体结构共同支撑并定位支撑管。本发明提供的一种基于微生物固化细粒土的地基施工方法提高了桩最大的承载力，确保地面上构筑物等的稳定，保证了安全降低了沉降。
Foundation construction method based on microorganism solidified fine-grained soil
一种基于微生物固化细粒土的地基施工方法
GENG HUILING (author) / JIANG XIAOHONG (author) / AN YUMIN (author) / ZHAO WEIQUAN (author) / WAN WENXIN (author) / WANG YOUHONG (author) / LIU WENHUA (author) / WANG HENG (author) / YANG YANG (author) / YU FAN (author)
2024-11-19
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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