在地质勘查或勘探工作中,为了揭露被覆盖的岩层或矿体,在地表挖掘的沟槽。坑探工程之一。探槽一般采用与岩层或矿层走向近似垂直的方向,长度可根据用途和地质情况决定。断面形状一般呈梯形,槽底宽0.6米,通常要求槽底应深入基岩约0.3米,探槽最大深度一般不超过3米。
n. coastean
misc. trial trench ; exploratory trench
利用该技术圈定的异常,经探槽揭露证实为矿化异常。
The Sn, Pb, and Ag anomalies delineated with the technology have been identified by trenching.
对探槽揭露的断层分析表明,这些断层自晚更新世以来未发生新活动。
The data on test trenches reveal that these thrusts have had not any activity since the late Pleistocene.
本文以东大井滑坡为例,依据地面调查、坑槽探及钻探等成果资料,客观地分析和评价滑坡的成因、稳定性与失稳的危害性;
This paper take Dongdajing Landslide as an example; on the basis of ground survey, pitting, trenching and drilling etc. achievements and materials;
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