A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dewatering construction method for soil layer with poor permeability of silty clay in deep foundation pit
The invention provides a deep foundation pit silty clay poor permeability soil layer dewatering construction method, and relates to the technical field of deep foundation pit construction.The deep foundation pit silty clay poor permeability soil layer dewatering construction method comprises the following steps that preliminary dewatering is conducted; excavating a foundation pit; digging a water collecting pit; excavating a deep excavation layer; local earthwork replacement filling is conducted, specifically, the sump is deeply excavated, and the deeply excavated part of the sump is subjected to replacement filling through a permeable material; secondary precipitation of the aqueduct; pouring foundation bed concrete; constructing a waterproof layer; constructing a waterproof protective layer; binding foundation steel bars; pouring foundation concrete; stopping precipitation; the deep digging part of the water collecting pit is filled with the permeable material twice, and one part of the water collecting pipe in the water guide pipe is buried in the permeable material, so that underground water in the water collecting pit is guided out to a municipal pipe network for dewatering, the water seepage speed of soil can be increased through the permeable material, and water and soil loss in the drainage process can be reduced; and the water guide pipe is positioned below the foundation bed and does not need secondary treatment.
本发明提供深基坑粉质粘土渗透性较差土层降水施工方法，涉及深基坑施工技术领域，该深基坑粉质粘土渗透性较差土层降水施工方法，包括以下步骤：初步降水；基坑开挖；集水坑开挖；深挖层开挖；局部土方换填，对集水坑进行深挖，并使用透水材料对集水坑深挖部分进行换填；导水管二次降水；基础垫层混凝土浇筑；防水层施工；防水保护层施工；基础钢筋绑扎；基础混凝土浇筑；停止降水；通过在集水坑深挖部分进行两次透水材料填充，将导水管中的集水管的一部分埋设于透水材料中，以将集水坑内的地下水导出至市政管网进行降水，不仅能够通过透水材料增加土壤的渗水速度和减少排水过程中水土的流失，而且导水管位于基础垫层之下无需二次处理。
Dewatering construction method for soil layer with poor permeability of silty clay in deep foundation pit
The invention provides a deep foundation pit silty clay poor permeability soil layer dewatering construction method, and relates to the technical field of deep foundation pit construction.The deep foundation pit silty clay poor permeability soil layer dewatering construction method comprises the following steps that preliminary dewatering is conducted; excavating a foundation pit; digging a water collecting pit; excavating a deep excavation layer; local earthwork replacement filling is conducted, specifically, the sump is deeply excavated, and the deeply excavated part of the sump is subjected to replacement filling through a permeable material; secondary precipitation of the aqueduct; pouring foundation bed concrete; constructing a waterproof layer; constructing a waterproof protective layer; binding foundation steel bars; pouring foundation concrete; stopping precipitation; the deep digging part of the water collecting pit is filled with the permeable material twice, and one part of the water collecting pipe in the water guide pipe is buried in the permeable material, so that underground water in the water collecting pit is guided out to a municipal pipe network for dewatering, the water seepage speed of soil can be increased through the permeable material, and water and soil loss in the drainage process can be reduced; and the water guide pipe is positioned below the foundation bed and does not need secondary treatment.
本发明提供深基坑粉质粘土渗透性较差土层降水施工方法，涉及深基坑施工技术领域，该深基坑粉质粘土渗透性较差土层降水施工方法，包括以下步骤：初步降水；基坑开挖；集水坑开挖；深挖层开挖；局部土方换填，对集水坑进行深挖，并使用透水材料对集水坑深挖部分进行换填；导水管二次降水；基础垫层混凝土浇筑；防水层施工；防水保护层施工；基础钢筋绑扎；基础混凝土浇筑；停止降水；通过在集水坑深挖部分进行两次透水材料填充，将导水管中的集水管的一部分埋设于透水材料中，以将集水坑内的地下水导出至市政管网进行降水，不仅能够通过透水材料增加土壤的渗水速度和减少排水过程中水土的流失，而且导水管位于基础垫层之下无需二次处理。
Dewatering construction method for soil layer with poor permeability of silty clay in deep foundation pit
深基坑粉质粘土渗透性较差土层降水施工方法
WANG CAIFENG (author) / ZHANG LIWEI (author) / WU DONGCHANG (author) / ZHANG RUIBING (author) / JIN TIAN (author) / SHAN YONGSHENG (author) / GENG XUEJIE (author) / XIA FENG (author)
2023-09-05
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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