This results in alternating periods of quiescence and activity - remarkably like the build-up and collapse of a sand pile.
这会导致变换的静止和活动的周期-与沙堆的堆砌和崩塌非常相像。
Such a family resembles a house built on sand, likely to collapse at any moment.
这家庭有如一栋以沙为根基的房子，随时会倒塌。
They could see the grass-thatched shed lift and collapse, while a froth of foam cleared the crest of the sand and ran down to the lagoon.
他们瞧见那棚屋的草顶往上一掀，坍塌下来，一道溅着白沫的波浪越过沙堤，流进湖内。
A series of measures such as open caisson, thickening protective wall and decreasing length, etc. are taken to overcome problems of sand drafting, collapse and water gushing, which get better effect.
施工中采用沉井法、增加护壁厚度、减小长度等一系列措施，克服了流砂、坍孔、涌水等难点，取得了较好的效果。
Two practical problems in the petroleum exploitation about casing collapse and sand production are taken as examples to make some explication.
就该理论在石油开发领域注水引致的套管损坏及产层出砂问题的具体应用进行了简单的讨论。
To ensure the quality of the deck, the quality of sand gravel aggregate, cement, additives, leveling of slope face and erection of lateral forms, and the collapse degree were controlled strictly.
为保证面板的质量，对砂石骨料、水泥、外加剂和坡面平整度、侧模安装质量及混凝土的塌落度等进行了严格的控制。
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.
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。
And the characteristics of collapse deformation by wetting are also revealed. It is proposed that it is the granule composition of silt-sand that mainly causes the collapse deformation by wetting.
揭示了粉土的湿陷变形特性，提出了粉土成分含量是引起粉土湿陷变形的主要因素。
And the characteristics of collapse deformation by wetting are also revealed. It is proposed that it is the granule composition of silt-sand that mainly causes the collapse deformation by wetting.
揭示了粉土的湿陷变形特性，提出了粉土成分含量是引起粉土湿陷变形的主要因素。
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