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Vacuum preloading consolidation method appliable to dredger soft soil foundation
The invention discloses a vacuum preloading consolidation method appliable to a dredger soft soil foundation. The vacuum preloading consolidation method appliable to the dredger soft soil foundation comprises the following steps: undisturbed soil is levelled, and a non-woven geotextile is laid; a lower horizontal drainage layer is laid, and comprises a vacuum pipe network on a lower layer and a sandbag layer on an upper layer; dredger fill is laid to reach a predetermined height; a drainage plate is drilled, the lower end of the drainage plate penetrates through the lower horizontal drainage layer to reach the undisturbed soil, the upper end of the drainage plate is reserved, and a non-woven geotextile is laid; an upper horizontal drainage layer is laid, and as the same as the lower horizontal drainage layer in structure, and the upper end of the drainage plate penetrates through the upper horizontal drainage layer; clay is laid to seal, and the upper end of the drainage plate is embedded into a position below the middle of the clay; and the number of invested vacuum pumps is selected according to a construction requirement, the vacuum pumps are started, and water in the soft soilflows out from the vacuum pumps through the drainage plate, the upper horizontal drainage layer and the lower horizontal drainage layer, and soft soil consolidation is realized. According to the method, the vacuum degree and the diffusion efficiency are increased, and the integrality and the sealing effects of the horizontal drainage layers are improved.
本发明公开了一种适用于吹填软土地基的真空预压加固方法，平整原状土，铺设无纺土工布；铺设下水平排水层，下水平排水层包括下层的真空管网和上层的沙袋层；铺设吹填土至预定高度；打设排水板，排水板下端穿过下水平排水层至原状土、上端预留，铺设无纺土工布；铺设上水平排水层，上水平排水层与下水平排水层结构相同，排水板上端穿过上水平排水层；铺设粘土进行密封，排水板上端埋入粘土中间以下位置；根据施工要求选择投入的真空泵的数量，开启真空泵，软土中的水通过排水板和上、下水平排水层至真空泵流出，实现软土固结。该方法提高了真空度扩散效率、水平排水层的整体性和密封效果。
Vacuum preloading consolidation method appliable to dredger soft soil foundation
The invention discloses a vacuum preloading consolidation method appliable to a dredger soft soil foundation. The vacuum preloading consolidation method appliable to the dredger soft soil foundation comprises the following steps: undisturbed soil is levelled, and a non-woven geotextile is laid; a lower horizontal drainage layer is laid, and comprises a vacuum pipe network on a lower layer and a sandbag layer on an upper layer; dredger fill is laid to reach a predetermined height; a drainage plate is drilled, the lower end of the drainage plate penetrates through the lower horizontal drainage layer to reach the undisturbed soil, the upper end of the drainage plate is reserved, and a non-woven geotextile is laid; an upper horizontal drainage layer is laid, and as the same as the lower horizontal drainage layer in structure, and the upper end of the drainage plate penetrates through the upper horizontal drainage layer; clay is laid to seal, and the upper end of the drainage plate is embedded into a position below the middle of the clay; and the number of invested vacuum pumps is selected according to a construction requirement, the vacuum pumps are started, and water in the soft soilflows out from the vacuum pumps through the drainage plate, the upper horizontal drainage layer and the lower horizontal drainage layer, and soft soil consolidation is realized. According to the method, the vacuum degree and the diffusion efficiency are increased, and the integrality and the sealing effects of the horizontal drainage layers are improved.
本发明公开了一种适用于吹填软土地基的真空预压加固方法，平整原状土，铺设无纺土工布；铺设下水平排水层，下水平排水层包括下层的真空管网和上层的沙袋层；铺设吹填土至预定高度；打设排水板，排水板下端穿过下水平排水层至原状土、上端预留，铺设无纺土工布；铺设上水平排水层，上水平排水层与下水平排水层结构相同，排水板上端穿过上水平排水层；铺设粘土进行密封，排水板上端埋入粘土中间以下位置；根据施工要求选择投入的真空泵的数量，开启真空泵，软土中的水通过排水板和上、下水平排水层至真空泵流出，实现软土固结。该方法提高了真空度扩散效率、水平排水层的整体性和密封效果。
Vacuum preloading consolidation method appliable to dredger soft soil foundation
适用于吹填软土地基的真空预压加固方法
KONG XIAOLONG (author) / CHEN SHIWEI (author) / ZHANG CHI (author) / DI HAO (author) / LI HONGYAN (author) / LI YAN (author) / LIU ZHI (author)
2020-08-04
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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