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发明公开
CN1815185A 工程岩体结构面抗剪强度取值方法 无效 - 驳回

工程岩体结构面抗剪强度取值方法
摘要：
本发明涉及工程岩体结构面抗剪强度取值方法，包含以下顺序步骤：在选取的结构面上标定试验方向，根据标定方向，分别选取五个尺寸为10cm×10cm的结构面试样和五个尺寸为30cm×30cm的结构面试样；沿标定方向对尺寸为10cm×10cm的结构面试样进行定向统计测量，求得第i个试样的粗糙度系数特征值JRC10i；在原位岩体结构面上，沿标定的方向均匀地布置多个长度为10cm的测量线段，进行定向统计测量，求得长度为10cm的原位岩体结构面粗糙度系数特征值JRC10*；根据所标定的方向，对尺寸为10cm×10cm的结构面试样和尺寸为30cm×30cm的结构面试样直剪试验，分别求得τ10i和五τ30i；由计算τ10*，由计算τ30*；代入JRC－JCS模型，求解得到τ10i*－τ10i模型：；尺寸为10cm×10cm的原位岩体结构面抗剪强度(τ实10*)：；实际工程岩体结构面的抗剪强度(τ实)：。
摘要（英）：

Present invention relates to engineering rock mass structure surface shearing strength value taking method. It includes following steps: calibrating test direction selected structural surface, according to calibrating direction respectively selecting five 10 cm X 10 cm structural surface test sample and five 30 cm X 30 cm structural surface test sample, to proceed orient statistics measuring to 10 cm X 10 cm structural surface test sample, to obtain number i test sample roughness coefficient eigenvalue JRC 10, uniformly distributing plurality of 10 cm length measuring line along calibrated direction on in situ rock mass structure surface, to proceed orient statistics measuring to obtain in situ rock mass structure surface roughness coefficient eigenvalue JRC 10 *, according to calibrated direction, to make direct shear test to 10 cm X 10 cm and 30 cm X 30 cm structural surface test sample, respectively obtaining in situ rock mass structure surface shearing strength and practical engineering rock mass structure surface shearing strength.

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