高密度电法在西岭雪山蓄水池稳定性探测中的应用

APPLICATIONS OF STABILITY EXPLORATION WITH HIGH -DENSITY ELECTRICAL METHOD IN THE XILING SNOW MOUNTAIN RESERVOIR

通过对待建西岭雪山蓄水池工区进行的浅层勘测,对工区覆盖层与基岩电性差异和裂隙异常特征研究,并与钻孔资料进行比对、校正。结果表明,工区范围内的覆盖层与基岩,以及裂隙与围岩存在明显电性差异。经过软件反演后的测线视电阻率异常特征和断面,清晰地反映出地下基岩起伏和裂隙地下延展分布、地下埋深情况,进而可圈定不良地质体规模,为待建蓄水池提供了地质依据。

According to the shallow survey on the constructing working area in Snow Mountain reservoir, the study on the covering layer of working area and the electrical differences of bedrock, the abnormal characteristics of fracture and some comparing and correcting are carried out based on borehole data. The results show that there is obvious electrical differences among the bedrock, overburden rock and cracks and surrounding rock in working area. After the test line inversion of apparent resistivity anomalies and crosssection, a clear reflection of the up and down of bedrock and extension distribution of fracture underground rock and underground depth of the situation are showed, and thus the adverse geological scale can be delineated, and geological condition is provided to reservoir constructions.