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地下水位的变化是影响真空联合堆载预压加固效果的重要因素之一。本文对浃里陈大桥试验段的地下水位测试方法与监测成果进行了分析 ,分析结果表明用水位计所测得的地下水位基本能反映真空状态下的地基中的实际水位情况 ;地下水位的变化与抽真空的作用时间、距真空泵的距离、与塑排的间距、堆载以及降水渗漏等因素相关。水位在抽真空的初始阶段下降较快 ,在路基堆载阶段有所上升 ,联合堆载预压阶段逐渐下降至基本稳定状态 ,形成一个稳定的渗流场。
The change of groundwater level is one of the important factors that affect the consolidation effect of vacuum combined with surcharge preloading. This paper analyzes the test methods and monitoring results of the groundwater level in the test section of Chenli Bridge in Yali. The results show that the groundwater level measured by the water level meter can basically reflect the actual water level in the foundation under vacuum; the change of groundwater level And the role of vacuum time, distance from the vacuum pump, and the platoon spacing, stacking and precipitation leakage and other factors. The water level decreased rapidly in the initial stage of vacuum pumping and increased in the subgrade loading stage. The joint preloading stage gradually decreased to the basic steady state, forming a stable seepage field.