大岗山水电站棱子坝人工骨料场勘察

Exploration on Lengziba artificial aggregate field of Dagangshan Hydropower Station

大岗山水电站位于高山峡谷地区,坝址附近缺乏满足筑坝要求的砂砾石料。工程前期对坝址上下游若干人工骨料场开展了普查工作,初步确定了若干个人工料场,经综合比选,最终选择了棱子坝和雨洒河两个料场开展了详查勘测工作。主要阐述了棱子坝料场的勘察过程,对料源质量和储量状态进行了检测分析与评估,重新确定了料场的开采范围,提出了具体开采时应注意的问题和建议。

There is a dearth of qualified sand and gravel material near the Dagangshan Hydropower Station that is located in valley area,so geological survey searching for artificial aggregate fields has been conducted near the dam site. Through comprehensive comparison and selection,two aggregate filed of Lengziba and Yusahe were chosen,and the specific survey was carried out. The survey of Lengziba was introduced. The quality of the material source and the storage state were tested,analyzed and evaluated,and the area for mining was re-determined. The problems that should pay attention to and suggestions in mining were proposed.