高崖跨断层短水准异常变化机理分析

2017-01～2018-04高崖水准的观测结果出现异常，为研究该异常的机理，本文基于对二维不规则载荷模型的定量模拟和库容、降水量、地下水位等影响因子的定性、定量分析，得到如下认识：1）高崖水库库容载荷变化对高崖水准的影响微弱，基本可忽略不计；2）高崖水准异常变化的主要原因是地下水位变化通过水-岩作用造成水准两端岩体的不一致变形。通过跟踪观测资料的后续变化，验证了水准异常变化机理的合理性。

Mechanism Analysis of Anomaly Change of Gaoya Short Cross-Fault Leveling

The observation results of Gaoya leveling is abnormal from January 2017 to April 2018. In order to study the mechanism of this anomaly, based on the quantitative simulation by 2-D irregular load model and the qualitative and quantitative analysis of impact factors such as reservoir capacity, precipitation and underground water level, the following understanding is obtained: 1) The change of Gaoya reservoir capacity load has a weak influence on the Gaoya leveling, which is not the main interference factor of the Gaoya leveling. 2) The deeper reason for the abnormal change of Gaoya leveling is that the change of underground water level affects the inconsistent deformation of rock mass at both ends of the level through water-rock action. The subsequent changes of observation verify the rationality of the new understanding about the mechanism of the abnormal changes.