Salinized soil soft foundation reinforcement treatment method based on saturated brine: Fid-Bau Portal

Salinized soil soft foundation reinforcement treatment method based on saturated brine

HUANG MING

The invention discloses a saline soil soft foundation reinforcement treatment method based on saturated brine, and the foundation treated by the reinforcement treatment method comprises a plurality of drainage wrapped gravel piles arranged on the saline soil soft foundation containing the saturated brine, geogrids arranged on the tops of the drainage wrapped gravel piles, and a gravel hardcore, the drainage wrapped gravel pile comprises a high-permeability wrapped container, a gravel filling body arranged in the high-permeability wrapped container, a drainage pipe with one end arranged in the gravel filling body and a drainage screen pipe arranged at the lower end of the drainage pipe. The reinforcement treatment method comprises the steps of pile hole construction, high-permeability wrapped container installation, drainage pipe installation, gravel filling, underground water forced drainage and mattress layer construction. According to the method, the speed of discharging pore water to the foundation soil can be increased, the foundation is in a negative pressure state, the pores of the foundation soil are closed, the shear strength and the vertical bearing capacity of the soil between the piles and the gravel pile bodies are improved, and the shear strength and the bearing capacity of the foundation are rapidly improved.

本发明公开了一种基于饱和卤水的盐渍土软弱地基加固处理方法，经该加固处理方法处理的地基包括设置在含有饱和卤水的盐渍土软弱地基上的若干个排水裹体碎石桩、设置在排水裹体碎石桩顶部上的土工格栅及碎石垫层，排水裹体碎石桩包括高渗透裹体容器、设置在高渗透裹体容器内的碎石填充体、一端设置在碎石填充体内的排水管和设置在排水管下端的排水筛管；加固处理方法包括施工桩孔、安装高渗透裹体容器、安装排水管、填充碎石、强排地下水和施工褥垫层。该方法能够加快对地基土排出孔隙水的速度，且使地基出现负压状态，地基土孔隙出现闭合，提高了桩间土和碎石桩体的抗剪强度和竖向承载力，实现较快地提高地基抗剪强度和承载力。

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