本工程防渗墙在富含水砂卵砾石地层施工中，由于各种因素引起严重塌孔，施工中采用了深井井上降水措施。
The impervious wall of this project is located in water bearing sand and gravel, the collapse hole takes place due to some factor affect, the deep well lower water level measures are adopted.
通过室内岩心流动试验，研究了毛管力、含水饱和度对岩石出砂规律的影响。
The effect of capillary pressure and water saturation on sand production has been researched through the core flow test in this paper.
混砂时如果型砂的含水量较低，更回显得相当干散和硬脆。
If the moisture content of molding sand with low sand, more very dry bulk and hard brittle.
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