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A platform for research: civil engineering, architecture and urbanism
Soft soil foundation treatment method
The invention discloses a soft soil foundation treatment method. The method comprises the following steps that sand blasting is conducted in a soft soil foundation; a sand cushion layer is laid on themud surface; a drainage channel is laid, wherein the drainage channel penetrates through a sand blasting layer to discharge water in the soft soil foundation; a film pressing ditch is dug along the periphery of the sand cushion layer, a sealing film is laid on the sand cushion layer, and the corners of the sealing film are folded into the film pressing ditch to ensure that the sealing film and the sand cushion layer are in a sealed state; a vacuum pump is connected with a drain pipe, vacuumizing is conducted on the soft soil foundation by the vacuum pump, and the foundation is pre-pressed until the unloading standard is met. Filling of sand grains is achieved through air pressure, the water permeability of the soft soil foundation is improved, then vacuum preloading is conducted, the drainage efficiency of the soft soil foundation during vacuum preloading is improved, and the construction time is greatly shortened.
本发明公开了一种软土地基处理方法，本方法包括如下步骤：在软土地基中喷砂；在泥面上铺设砂垫层；铺设排水通道，排水通道贯穿喷砂层将软土地基中含水排出；沿砂垫层周缘挖设压膜沟，并在砂垫层外铺设密封膜，密封膜的边角折入压膜沟内以保证与砂垫层之间呈密封态；在排水管外连真空泵，真空泵对软土地基内抽真空，预压地基至满足卸载标准。通过气压填充砂粒，提高软土地基的透水能力，再真空预压，加快真空预压时软土地基的排水效率，极大的缩短施工时间。
Soft soil foundation treatment method
The invention discloses a soft soil foundation treatment method. The method comprises the following steps that sand blasting is conducted in a soft soil foundation; a sand cushion layer is laid on themud surface; a drainage channel is laid, wherein the drainage channel penetrates through a sand blasting layer to discharge water in the soft soil foundation; a film pressing ditch is dug along the periphery of the sand cushion layer, a sealing film is laid on the sand cushion layer, and the corners of the sealing film are folded into the film pressing ditch to ensure that the sealing film and the sand cushion layer are in a sealed state; a vacuum pump is connected with a drain pipe, vacuumizing is conducted on the soft soil foundation by the vacuum pump, and the foundation is pre-pressed until the unloading standard is met. Filling of sand grains is achieved through air pressure, the water permeability of the soft soil foundation is improved, then vacuum preloading is conducted, the drainage efficiency of the soft soil foundation during vacuum preloading is improved, and the construction time is greatly shortened.
本发明公开了一种软土地基处理方法，本方法包括如下步骤：在软土地基中喷砂；在泥面上铺设砂垫层；铺设排水通道，排水通道贯穿喷砂层将软土地基中含水排出；沿砂垫层周缘挖设压膜沟，并在砂垫层外铺设密封膜，密封膜的边角折入压膜沟内以保证与砂垫层之间呈密封态；在排水管外连真空泵，真空泵对软土地基内抽真空，预压地基至满足卸载标准。通过气压填充砂粒，提高软土地基的透水能力，再真空预压，加快真空预压时软土地基的排水效率，极大的缩短施工时间。
Soft soil foundation treatment method
软土地基处理方法
JIANG XUELIANG (author) / QIAN YONGHUI (author) / YANG HUI (author) / ZHU YINGBO (author) / SUN GUANGCHEN (author) / FAN WENCHEN (author) / ZHANG CONG (author)
2020-10-30
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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