Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Combined drainage device based on soft soil foundation and reinforcing method of combined drainage device
The invention discloses a combined drainage device based on a soft soil foundation. The combined drainage device comprises a drainage strip and a sand cushion laid on the upper surface of the soft soil foundation. A sealing film is laid on the upper surface of the sand cushion, sealing ditches are formed in the periphery of the soft soil foundation, the sealing film stretches into the sealing ditches downwards, and the positions, above the sealing film, in the sealing ditches are densely filled with clay. Water and gas in the soft soil foundation are discharged to a vacuum preloading dischargesystem. A pressurized drainage system is further included. The invention further discloses a method for reinforcing the soft soil foundation through the combined drainage device. Airbags are transversely pressurized in soil mass to form lateral pressurization, lateral pressurization cooperates with vacuum preloading to form a combined three-dimensional solidification manner, on one hand, dissipation of super-static-hole pressure can be accelerated by increasing the pressure difference, drainage of pore water in the soil mass and soil body solidification are accelerated, the vacuum preloadingreinforcing time is shortened, on the other hand, holes formed after the airbags expand are back-filled with gravel after reinforcing is completed, a composite foundation is formed, and the bearing force of the foundation can be advantageously improved.
本发明公开了一种基于软土地基的联合排水装置，包括排水带，铺设在软土地基上表面的砂垫层；砂垫层的上表面铺设有密封膜，在软土地基的四周开设有密封沟，密封膜下延至密封沟内，在密封沟内，密封膜的上方密实填充有粘土；将软土地基内的水分和气体排放真空预压排放系统；还包括有加压排水系统。本发明还公开利用上述联合排水装置对软土地基加固的方法；本发明采用气囊横向加压在土体内形成侧向加压，与真空预压配合形成联合三维固结模式，一方面可以通过增加压差，加速超静孔压的消散，加快土体内孔隙水的排出和土体固结，缩短真空预压加固时间，另一方面加固结束后在气囊膨胀形成的孔洞内回填砂石料形成复合地基，有利于提高地基承载力。
Combined drainage device based on soft soil foundation and reinforcing method of combined drainage device
The invention discloses a combined drainage device based on a soft soil foundation. The combined drainage device comprises a drainage strip and a sand cushion laid on the upper surface of the soft soil foundation. A sealing film is laid on the upper surface of the sand cushion, sealing ditches are formed in the periphery of the soft soil foundation, the sealing film stretches into the sealing ditches downwards, and the positions, above the sealing film, in the sealing ditches are densely filled with clay. Water and gas in the soft soil foundation are discharged to a vacuum preloading dischargesystem. A pressurized drainage system is further included. The invention further discloses a method for reinforcing the soft soil foundation through the combined drainage device. Airbags are transversely pressurized in soil mass to form lateral pressurization, lateral pressurization cooperates with vacuum preloading to form a combined three-dimensional solidification manner, on one hand, dissipation of super-static-hole pressure can be accelerated by increasing the pressure difference, drainage of pore water in the soil mass and soil body solidification are accelerated, the vacuum preloadingreinforcing time is shortened, on the other hand, holes formed after the airbags expand are back-filled with gravel after reinforcing is completed, a composite foundation is formed, and the bearing force of the foundation can be advantageously improved.
本发明公开了一种基于软土地基的联合排水装置，包括排水带，铺设在软土地基上表面的砂垫层；砂垫层的上表面铺设有密封膜，在软土地基的四周开设有密封沟，密封膜下延至密封沟内，在密封沟内，密封膜的上方密实填充有粘土；将软土地基内的水分和气体排放真空预压排放系统；还包括有加压排水系统。本发明还公开利用上述联合排水装置对软土地基加固的方法；本发明采用气囊横向加压在土体内形成侧向加压，与真空预压配合形成联合三维固结模式，一方面可以通过增加压差，加速超静孔压的消散，加快土体内孔隙水的排出和土体固结，缩短真空预压加固时间，另一方面加固结束后在气囊膨胀形成的孔洞内回填砂石料形成复合地基，有利于提高地基承载力。
Combined drainage device based on soft soil foundation and reinforcing method of combined drainage device
基于软土地基的联合排水装置及其加固方法
LIU TIANYUN (Autor:in) / ZHUGE AIJUN (Autor:in) / YU ZHIFA (Autor:in) / LI LIXIN (Autor:in) / LIU HONGLIANG (Autor:in) / LIU WENBIN (Autor:in) / YUAN FANGLONG (Autor:in)
19.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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