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采用抽真空的办法将土孔隙中的部分水分抽出以加固软土,是很容易被人接受的一种概念。但是,如何得到实际的工程效果和如何在理论上对这一效果进行解释,从而在加固前能够进行预估这一效果,并采取有效措施来保证并加速这一效果,在国内外土力学与基础工程界都作了长时间的探索。一、真空预压法的实践瑞典的杰尔曼在进行现场探索性试验的基础上,于1952年首次发表了“利用大气压力的方法加固粘土”论文,文中介绍了他所进行的试验工作。
The use of vacuum to extract part of the water in the soil pores to reinforce the soft soil is a concept that is easily accepted. However, how to obtain the actual engineering effect and how to theoretically explain this effect, so that the effect can be estimated before reinforcement, and effective measures can be taken to ensure and accelerate this effect, both at home and abroad. The basic engineering community has made long-term explorations. First, the practice of vacuum preloading method Based on field exploratory experiments, Sweden’s Dyerman first published the paper “Using Atmospheric Pressure Methods to Reinforce Clay” in 1952. His experiments were introduced in this article.