运用静力触探技术探求水坠坝流态区位置的研究——以陕西省志丹县前拐沟淤地坝为例

Seeking the Flow Condition Location of Sluicing-siltation Earth Dam with Cone Penetration Test——A Case Study of Qianguaigou Sluicing-siltation Earth Dam in Zhidan County of Shaanxi Province

水坠法修筑淤地坝技术近年来得到了广泛的应用和推广,但流态区的存在使得该技术具有一定的安全隐患,对于流态区位置的探求,常规的土钻法费时费力。以陕西省志丹县前拐沟淤地坝为研究对象,运用静力触探技术,结合SURFER软件作图探求流态区位置,并验证坝体稳定性。采用该方法探求水坠坝流态区位置,具有操作简单、快速精确的特点。

Building check dams with sluicing-siltation method was widely used and generalized in recent years. However, there existed potential risk for the existence of flow condition. Much time was wasted to seek the flow condition location with regular soil drilling method. Taking Qianguaigou warping dam in Zhidan County of Shaanxi Province as research object, the cone penetration test was used to seek the flow condition location and verify the stability of dam with the SURFER software. The method adopted in this study is easy to control, quick and accurate.