Abstract: By the engineering case, the paper introduced the selection of drill ship & equipment, drill ship assembling & anchoring positioning, drilling technology & calculation method of kelly overstand and footage per run for river drilling of bridge foundation investigation in flood season. The attentions on river drilling construction were emphasized.
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In comparison with the membrane theory, we proved that approximate computation by the membrane theory was adapted for engineering computations and the error in this case is not more than 5%.
比较了有矩理论和无矩理论解之后，指出：在工程实用中可用无矩理论近似求解，误差不大于5%。
In the case of beinginformed in advance, F&B director and executive chief are to rectify orcancel the working arrangement after confirmation of the cutting-offinformation by engineering department.
在预先获知信息的情况下，经工程部确认，由餐饮总监和行政总厨负责安排调整或取消工作计划。
The paper expounds the significance of optimizing design on foundation pit supporting by a certain engineering case study in Wuhan.
通过对武汉某一工程实例的分析，阐述了深基坑支护优化设计的重要性。
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