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在传统真空降水方法基础上增加注气加压措施,提高水力梯度,形成更多微裂隙为地下水流动提供更多流通通道,加快土体排水速度,具有很好的工程意义。目前,真空-注气降水方法在岩土工程中的应用鲜见报道,主要是因为对真空-注气降水的作用机理和工法研究不够成熟。文章通过真空-注气一维降水模型试验,探讨真空-注气降水工法在一维模型情况下的作用规律和效果,为研究真空-注气降水的机理提供参考。
Based on the traditional vacuum precipitation method, it is of great engineering significance to increase the gas injection pressure, increase the hydraulic gradient and form more micro-fractures to provide more circulation channels for groundwater flow and speed up the drainage speed of soil. At present, the application of vacuum-injection precipitation method in geotechnical engineering is rarely reported, mainly because of the lack of mature research on the mechanism and method of vacuum-injection gas precipitation. In this paper, the vacuum-injection one-dimensional precipitation model test is used to explore the law and effect of the vacuum-injection method in the one-dimensional model, which provides a reference for studying the mechanism of vacuum-gas injection.