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露天矿斜坡和山坡滑坡移动的滑动面形状和位置是由一系列条件决定的,其中有决定意义的是工程地质条件。因此,确定这些面是阐明工程地质条件和评价防止滑坡措施的有效性和稳定性的关键。在深部滑坡时,主要是在页岩的岩体中存在顺向移动时,用钻探不容易得到关于滑坡过程性质的满意结果。在这种条件下,用仪器观测标石点和分析滑坡地段的测量结果,就有可能为我们提供滑坡过程的性质。有许多实践的例子所证实。沿东马里芝露天矿外部废石堆前的标石点剖面线进行了变形观测。沿沙高里芝河台阶高7～8米缓斜坡上的剖面线,从1972年6月13日到1973年2月19日对标石
The shape and location of the sliding surface of open pit slopes and hillside landslides are determined by a series of conditions, of which the decisive ones are the engineering geological conditions. Therefore, the identification of these surfaces is the key to clarifying the engineering geological conditions and evaluating the effectiveness and stability of landslide prevention measures. In deep landslides, where there is forward movement primarily in the shale mass, satisfactory results on the nature of the landslide process are not readily available for drilling. Under these conditions, observing the target points with instruments and analyzing the results of the landslide sites may provide us with the nature of the landslide process. There are many practical examples to confirm. The deformation observation was carried out along the section line of the standard stone point in front of the external waste rock pile in the East Malizhi Opencast Mine. Along the high Rizhe River step 7 to 8 meters high gentle slope of the section line, from June 13, 1972 to February 19, 1973 on the standard stone