地应力观测

我国地应力观测与地震预报

Earth Stress Observation and Earthquake Prediction

嵩明台电感地应力观测装置，能感受到距测孔100米处抽水的影响。

The observation equipment with inductance type installed at Songming station is sensitive to the water-pumping influence 100 meters away .

在土层地应力观测预报的实践中，提出对观测资料异常进行综合识别的原则，并获得较理想的对应结果。

In the practice of soil layer terrestrial stress observation , the comprehensive distinguishing principle for the observational data anomalies has been presented and the relatively ideal corresponding result has been obtained .

地应力相对观测的现状及发展方向

Present state of relative field stress observation and its prospects

邢台等四台站地应力近期观测结果的特征与分析

Analysis of the characteristics of recent observation results of earth stress at Xingtai and other stations

由此可见地应力-应变观测的重要性。

Thus it can be seen that stress strain observations are important .

根据隧道开挖后其周围地应力变化的观测数据，建立了基于优化算法的岩体初始应力场识别方法。

The optimal algorithm is applied to determine the initial stress field of rock mass according to the stress changes around tunnel after excavation .

作者通过对地质构造、地应力和地形变观测资料及震源机制解等的综合分析认为，无论在地质历史时期还是近代，地块受力方式、方向是有变化的。

Basing on synthetical analysis for a lot of geological structures , observation of ground-stress and ground distortion , and explanations of focal mechanism , the author considers that forced form and forced direction of land mass are changed in both geological age and recent time .