A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Soft soil foundation layer drainage reinforcement treatment method
The invention provides a drainage reinforcement treatment method for a soft soil foundation layer, which comprises the following steps of: performing underground enclosure on a stratum with better water permeability through high-pressure jet grouting, and then applying a load on the ground to promote water in the soft clay stratum to flow to a vertical drainage channel which is arranged in advance; water in the vertical drainage channel is collected into the stratum with good water permeability under the action of gravity, and finally the water is pumped out of the stratum with good water permeability through the water pumping pipe. Through the jet grouting pile underground enclosure structure, a high-permeability stratum can be isolated from surrounding underground water, the water content of the high-permeability stratum is reduced, then drainage of soil within a certain range adjacent to the low-permeability stratum is accelerated, the strength of the deep part of the low-permeability stratum is directly enhanced, and the construction efficiency is improved. Water discharged through consolidation is collected to the lower permeable layer along the vertical drainage channel through a lower water pumping method and then pumped out through the water pump in a unified mode, and the problems that the consolidation drainage flow of the low-permeability stratum is generally small, and the direct pumping efficiency is poor are solved.
本发明提供一种软土地基底层排水加固处理方法，通过高压喷射注浆对透水性较好的地层进行地下围护，然后，在地面施加荷载以促进软黏土地层中的水流向提前布设的竖向排水通道，竖向排水通道的水在重力作用下汇集至透水性较好的地层中，最后，由抽水管将水从透水性较好的地层中抽出。通过旋喷桩地下围护结构可将高渗透性地层与周边地下水隔离，降低高渗透性地层的含水率，进而加快邻近低渗透性地层一定范围内土体的排水，直接增强了低渗透性地层深部的强度，通过下部抽水法将固结排出的水沿竖向排水通道汇集至下部透水层，再由水泵统一抽出，解决了低渗透性地层固结排水流量一般较小，直接抽取效率不佳的问题。
Soft soil foundation layer drainage reinforcement treatment method
The invention provides a drainage reinforcement treatment method for a soft soil foundation layer, which comprises the following steps of: performing underground enclosure on a stratum with better water permeability through high-pressure jet grouting, and then applying a load on the ground to promote water in the soft clay stratum to flow to a vertical drainage channel which is arranged in advance; water in the vertical drainage channel is collected into the stratum with good water permeability under the action of gravity, and finally the water is pumped out of the stratum with good water permeability through the water pumping pipe. Through the jet grouting pile underground enclosure structure, a high-permeability stratum can be isolated from surrounding underground water, the water content of the high-permeability stratum is reduced, then drainage of soil within a certain range adjacent to the low-permeability stratum is accelerated, the strength of the deep part of the low-permeability stratum is directly enhanced, and the construction efficiency is improved. Water discharged through consolidation is collected to the lower permeable layer along the vertical drainage channel through a lower water pumping method and then pumped out through the water pump in a unified mode, and the problems that the consolidation drainage flow of the low-permeability stratum is generally small, and the direct pumping efficiency is poor are solved.
本发明提供一种软土地基底层排水加固处理方法，通过高压喷射注浆对透水性较好的地层进行地下围护，然后，在地面施加荷载以促进软黏土地层中的水流向提前布设的竖向排水通道，竖向排水通道的水在重力作用下汇集至透水性较好的地层中，最后，由抽水管将水从透水性较好的地层中抽出。通过旋喷桩地下围护结构可将高渗透性地层与周边地下水隔离，降低高渗透性地层的含水率，进而加快邻近低渗透性地层一定范围内土体的排水，直接增强了低渗透性地层深部的强度，通过下部抽水法将固结排出的水沿竖向排水通道汇集至下部透水层，再由水泵统一抽出，解决了低渗透性地层固结排水流量一般较小，直接抽取效率不佳的问题。
Soft soil foundation layer drainage reinforcement treatment method
软土地基底层排水加固处理方法
ZENG ZHUO (author) / RUAN BO (author) / LIU JIANGPENG (author) / LI QIN (author)
2023-05-05
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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