A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Soft foundation prefabricated side ditch construction method
The invention provides a soft foundation prefabricated side ditch construction method. The soft foundation prefabricated side ditch construction method comprises the following steps of construction preparation, surveying and setting out, foundation trench excavation, coarse sand cushion layer laying, geogrid laying, first fine sand cushion layer laying, composite geomembrane laying, second fine sand cushion layer laying, stacking and loading, prefabricated side ditch installation, prefabricated side ditch connecting and fixing, backfilling, acceptance check and maintenance. Geogrids are laid to enhance the bearing capacity of the groove, and a drainage channel is formed in the lower side of the composite geomembrane, so that water in soft soil pores is drained as soon as possible along the first fine sand cushion layer. The composite geomembrane isolates soft soil on the lower side of the foundation trench, protects the soft soil from being affected by water seepage of the upper portion, and enables the soft soil to be consolidated orderly. The composite geomembrane can be used for vacuum preloading, and it is guaranteed that the foundation is evenly solidified. The prefabricated side ditch is of a three-layer structure, the strength of the prefabricated side ditch is guaranteed, meanwhile, the weight of the prefabricated side ditch is reduced, and the possibility of sedimentation and slope instability is reduced.
本发明提供一种软地基预制边沟施工方法，包括以下步骤：施工准备，测量放线，基槽开挖，粗砂垫层，铺设土工格栅，第一层细砂垫层，铺设复合土工膜，第二层细砂垫层，堆载，安装预制边沟，连接和固定预制边沟，回填，验收与维护。铺设土工格栅增强沟槽的承载力，在复合土工膜下侧形成排水通道，使软土孔隙中的水沿第一细砂垫层尽快排出。复合土工膜将基槽下侧的软土隔离，保护软土不受上部渗水影响，使软土有序固结。可以利用复合土工膜进行真空预压，保证地基均匀固结。预制边沟采用三层结构在保证预制边沟强度的同时，降低预制边沟重量，减少发生沉降、边坡失稳的可能性。
Soft foundation prefabricated side ditch construction method
The invention provides a soft foundation prefabricated side ditch construction method. The soft foundation prefabricated side ditch construction method comprises the following steps of construction preparation, surveying and setting out, foundation trench excavation, coarse sand cushion layer laying, geogrid laying, first fine sand cushion layer laying, composite geomembrane laying, second fine sand cushion layer laying, stacking and loading, prefabricated side ditch installation, prefabricated side ditch connecting and fixing, backfilling, acceptance check and maintenance. Geogrids are laid to enhance the bearing capacity of the groove, and a drainage channel is formed in the lower side of the composite geomembrane, so that water in soft soil pores is drained as soon as possible along the first fine sand cushion layer. The composite geomembrane isolates soft soil on the lower side of the foundation trench, protects the soft soil from being affected by water seepage of the upper portion, and enables the soft soil to be consolidated orderly. The composite geomembrane can be used for vacuum preloading, and it is guaranteed that the foundation is evenly solidified. The prefabricated side ditch is of a three-layer structure, the strength of the prefabricated side ditch is guaranteed, meanwhile, the weight of the prefabricated side ditch is reduced, and the possibility of sedimentation and slope instability is reduced.
本发明提供一种软地基预制边沟施工方法，包括以下步骤：施工准备，测量放线，基槽开挖，粗砂垫层，铺设土工格栅，第一层细砂垫层，铺设复合土工膜，第二层细砂垫层，堆载，安装预制边沟，连接和固定预制边沟，回填，验收与维护。铺设土工格栅增强沟槽的承载力，在复合土工膜下侧形成排水通道，使软土孔隙中的水沿第一细砂垫层尽快排出。复合土工膜将基槽下侧的软土隔离，保护软土不受上部渗水影响，使软土有序固结。可以利用复合土工膜进行真空预压，保证地基均匀固结。预制边沟采用三层结构在保证预制边沟强度的同时，降低预制边沟重量，减少发生沉降、边坡失稳的可能性。
Soft foundation prefabricated side ditch construction method
一种软地基预制边沟施工方法
CAO JIANFENG (author) / ZHONG QIN (author) / GU YINHUA (author) / XIANG LIN (author) / ZHU CHUNLONG (author)
2024-07-02
Patent
Electronic Resource
Chinese
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