厚壁取土器在底质取样中的改进应用  

Improved application of bed material sampler with thick wall

作　　者：冯建军 朱承英 

机构地区：[1]中交上海航道勘察设计研究院有限公司,上海200120

出　　处：《水运工程》2012年第12期215-217,224,共4页Port & Waterway Engineering

基　　金：国家高技术研究发展计划(863计划)项目(2012AA112509)

摘　　要：以连云港港徐圩航道先导试挖阶段航道回淤观测工程为契机,以提高表层底质样取样精度为目标,在观测海域采用拖罐法、钻杆薄壁取样法及厚壁取样法进行对比试验。通过现场可操作性和室内试验成果的比较,提出改良的厚壁取样法,在满足取样要求的前提下大幅度提高取样效率,劳动强度低,在本地区后期的回淤物采样中广泛应用。In order to improve the sampling accuracy of bed materials, we carry out a contrast test in siltation observation of Xuwei test channel among three methods including sampling by dragging dustpan, sampling by thin-walled drill pipe dragging and sampling by thick wall. Based on the comparison and analysis of the field and lab results, we propose the improved sampling method for bed materials with thick wall, which can not only raise the sampling efficiency greatly but also reduce the labor intensity under the prerequisite of satisfying the sampling requirement. The method is widely used in the siltation sampling of the region.

关 键 词：底质取样 厚壁取样 柱状样 

分 类 号：U65[交通运输工程—港口、海岸及近海工程]