某高填方机场块石填料强夯质量评价及检测方法试验研究

作者:王家磊 吴帅峰
单位:民航机场规划设计研究总院有限公司 中国水利水电科学研究院
摘要:为研究块石填料的强夯质量评价及检测方法,在某高填方机场飞行区开展块石填料填筑强夯试验。对各夯点及其周边标记点变形,各夯点强夯前后的颗分、干密度、固体体积率、动力触探及波速值等多种试验检测数据进行综合分析,综合评价强夯质量。确定最佳强夯击数为9次,强夯水平和竖向影响距离为4,3m。强夯块石填料检测方法推荐优先采用动力触探,其次采用干密度及固体体积率检测方法;颗分试验和面波测试可作为辅助手段进行定性检测。
关键词:高填方强夯试验质量评价变形检测
作者简介:王家磊,工程师,E-mail:wjlcacc@163.com。
基金: -页码-:80-84
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Experimental Research on Quality Evaluation and Detection Method of Dynamic Compaction of Block Rock Filler in a High-fill Airport
WANG Jialei WU Shuaifeng
(China Airport Planning & Design Institute Co., Ltd. China Institute of Water Resources and Hydropower Research)
Abstract: In order to study the quality evaluation and detection method of dynamic compaction of block rock filler, a dynamic compaction test of block rock filler was carried out in the flight area of a high-fill airport. The deformation of each point and its surrounding marking points, grain-size analysis before and after the dynamic compaction of each point, dry density, solid volume rate, power detection and wave velocity value and other experimental test data were analyzed comprehensively to make thorough evaluation of dynamic compaction quality. The optimal number of strong strikes is found to be 9 times, and the horizontal impact distance of dynamic compaction is 4 m, and the vertical impact distance is 3 m. Power detection is given priority in all recommended detection methods of dynamic compaction block rock filler, followed by the detection method of dry density and solid volume rate, and grain-size analysis. And surface wave can be used as an auxiliary means to carry out qualitative detection.
Keywords: high fill; dynamic compaction; testing; quality evaluation; deformation; detection
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