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滑坡推力计算中,如何确定滑带土强度指标内摩擦角φ、粘聚力c是关键问题。目前确定滑带土的强度指标主要有3种方法:①试验方法;②经验方法;③反算方法(反算综合摩擦系数f值或综合粘聚力c值)。反算滑带土综合f值(或c值)法,在实际工作中是常用的方法。通常当滑带土含较多的碎石、砾石或角砾时,采用综合f值;当滑带土为粘性土或虽有碎石,但含量不多时,采用
In landslide thrust calculation, how to determine the slip angle soil strength index φ and cohesion c are the key issues. At present, there are three main methods to determine the strength index of sliding zone soil: ① test method; ② empirical method; ③ inverse calculation method (inverse total friction coefficient f value or comprehensive cohesion c value). Calculating the integrated f-value (or c-value) method of sliding-zone soil is a commonly used method in practical work. Usually slippery soil with more gravel, gravel or breccia, the use of integrated f value; when the slippery soil is clay or gravel, but the content is small, the use of