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发明授权
CN100516825C 非均一性结构面抗剪强度取值方法 失效 - 权利终止

非均一性结构面抗剪强度取值方法
摘要：
本发明涉及一种非均一性结构面抗剪强度取值方法，包含以下顺序步骤：在选取的结构面试样上标定试验方向，使结构面试样和原位岩体结构面的粗糙度系数测量方向保持一致；根据确定的试验方向，对结构面试样进行粗糙度系数定向统计测量，求得第i个试样的粗糙度系数特征值JRC0i；在原位岩体结构面上，沿标定的方向，按照结构面试样的长度均匀地布置不少于30条的测量线段，进行粗糙度系数的定向统计测量，求得试样尺寸的原位岩体结构面粗糙度系数特征值JRC0*；分别代入JRC-JCS模型，得见右式1；最后由公式见右式2，即可求得试样尺寸的原位岩体结构面抗剪强度τ*，式中，N为直剪试验的试样个数。
摘要（英）：

Present invention relates to a nonuniformity structural plane shearing strength value taking method. It includes following steps: calibrating test direction on selected structure surface test sample and to make rock mass structure surface test sample direction concordance with in situ rock mass structure surface roughness coefficient measurement, to proceed orient statistics measuring to rock mass structure surface test sample according to calibrating direction to obtain number i rock mass structure surface test sample roughness coefficient eigenvalue JRC 0 i , uniformly distributing not less than 30 strips measuring lines along calibrating direction according to rock mass structure surface test sample length, to proceed orient statistics measuring to obtain sample size in situ rock mass structure surface roughness coefficient eigenvalue JRC 0 *, respectively substituting pattern JRC-JCS, to obtain sample size in situ rock mass structure surface shearing strength.

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