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A platform for research: civil engineering, architecture and urbanism
Construction method for collapsible loess geology non-suitable material composite foundation
The invention provides a construction method for a collapsible loess geology non-suitable material composite foundation. The construction method comprises the following steps that S1, geological exploration data are analyzed, the thickness of the non-suitable materials at all positions in construction is extracted, a processing method is determined according to the thickness, if the thickness of the non-suitable materials at the current position is larger than the buried depth of a pipeline, the step S2 is carried out, and if the thickness of the non-suitable materials at the current positionis smaller than or equal to the buried depth of the pipeline, the step S3 is carried out; S2, PHC pipe piles are arranged at the positions where the thickness of the non-suitable materials is larger than the buried depth of the pipeline, and the step S4 is carried out; S3, the non-suitable materials are excavated; S4, a lime soil sealing layer is laid on the surface of a site; and S5, replacementfilling operation is carried out on the lime soil sealing layer. According to the construction method, the safety is improved, the construction progress is accelerated, the construction cost caused bya large amount of outward transported earthwork is reduced, the flying dust environment pollution caused by outward transported earthwork and backfill earthwork is inhibited, and the post-construction settlement caused by backfill is reduced.
本发明提供了一种湿陷性黄土地质非适宜材料复合地基施工工法，包括以下步骤：S1、分析地勘资料，提取非适宜材料在施工中各位置的厚度，根据厚度确定处理方法，若当前位置所述非适宜性材料厚度大于管道埋深则进行步骤S2；若当前位置所述非适宜性材料厚度小于等于管道埋深则进行步骤S3；S2、在所述非适应性材料厚度大于管道埋深的位置设置PHC管桩，进行步骤S4；S3、挖除非适应性材料；S4、在场地表面铺设石灰土封层；S5、在所述石灰土封层上进行换填作业。本发明增加了安全性、加快了施工进度，降低了因大量外运土方所带来的工程造价，抑制了因外运土方与回填土方所造成的扬尘环境污染，减少了因回填所造成的工后沉降。
Construction method for collapsible loess geology non-suitable material composite foundation
The invention provides a construction method for a collapsible loess geology non-suitable material composite foundation. The construction method comprises the following steps that S1, geological exploration data are analyzed, the thickness of the non-suitable materials at all positions in construction is extracted, a processing method is determined according to the thickness, if the thickness of the non-suitable materials at the current position is larger than the buried depth of a pipeline, the step S2 is carried out, and if the thickness of the non-suitable materials at the current positionis smaller than or equal to the buried depth of the pipeline, the step S3 is carried out; S2, PHC pipe piles are arranged at the positions where the thickness of the non-suitable materials is larger than the buried depth of the pipeline, and the step S4 is carried out; S3, the non-suitable materials are excavated; S4, a lime soil sealing layer is laid on the surface of a site; and S5, replacementfilling operation is carried out on the lime soil sealing layer. According to the construction method, the safety is improved, the construction progress is accelerated, the construction cost caused bya large amount of outward transported earthwork is reduced, the flying dust environment pollution caused by outward transported earthwork and backfill earthwork is inhibited, and the post-construction settlement caused by backfill is reduced.
本发明提供了一种湿陷性黄土地质非适宜材料复合地基施工工法，包括以下步骤：S1、分析地勘资料，提取非适宜材料在施工中各位置的厚度，根据厚度确定处理方法，若当前位置所述非适宜性材料厚度大于管道埋深则进行步骤S2；若当前位置所述非适宜性材料厚度小于等于管道埋深则进行步骤S3；S2、在所述非适应性材料厚度大于管道埋深的位置设置PHC管桩，进行步骤S4；S3、挖除非适应性材料；S4、在场地表面铺设石灰土封层；S5、在所述石灰土封层上进行换填作业。本发明增加了安全性、加快了施工进度，降低了因大量外运土方所带来的工程造价，抑制了因外运土方与回填土方所造成的扬尘环境污染，减少了因回填所造成的工后沉降。
Construction method for collapsible loess geology non-suitable material composite foundation
一种湿陷性黄土地质非适宜材料复合地基施工工法
XIE JINGHUA (author) / NIU XIN (author) / CAI HAO (author) / YU HAI (author)
2021-03-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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