真空预压联合戗灰拌合法加固新吹填超软土地基技术

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采用真空预压法加固新近吹填的超软土地基时,尽管地基沉降量很大,含水率也有大幅度的降低,但有时加固后表层土的十字板剪切强度仍然较低,不能满足工程需要。这主要是由于这类土颗粒中黏粒甚至胶粒的含量较大且土的固结快剪内摩擦角较小所造成的。对于真空预压后不能满足工程需要的表层土,可进一步采用戗灰拌合的方法进行处理。 When using the vacuum preloading method to reinforce newly-infilled ultra-soft soil foundation, although the ground settlement amount is very large and the water content is also greatly reduced, sometimes the shear strength of the top soil is still low and can not meet the engineering need. This is mainly due to the clay particles in this type of particles or even a large amount of particles and soil consolidation faster shear caused by smaller internal friction angle. After the vacuum preloading can not meet the engineering needs of the surface soil, ash can be further mixed with the method of processing.
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