初勘是在场址经确定后进行。为了对场地内各建筑地段的稳定性做出评价，初勘的任务之一就在于查明建筑场地不良地质现象的成因、分布范围、危害程度及其发展趋势，以便使场地主要建筑物的布置避开不良地质现象发育的地段，为建筑总平面布置提供依据。
经现场初步勘察，倒塌事故可能是由违章施工所致。
According to an initial investigation, the accident may have been caused by a violation of construction procedures.
结合宁波市常洪隧道岩土工程勘察实例分析，对软土地基沉管隧道工程的岩土工程勘察方案设计进行了初步探讨。
Based upon the exploration and analysis of Changhong immersed tube tunnel, Ningbo, the paper makes a preliminary study on the geotechnical exploration scheme of immersed tube tunnel in soft ground.
实践证明，在合芜高速公路软土地区公路工程地基勘察中初步应用静力触探的效果是显著的。
The static cone penetration test is applied here to the investigation of the ground of HefeiWuhu Expressway in the soft soil area.
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