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- Joint Roughness Coefficient (JRC ) is an equivalent index which describes mechanical effect of rock joint surface angle of ascent. JRC是反映爬坡角力学效应的岩体结构面表面形态等效描述指标。
- This paper first reviews the various methods for determining the joint roughness coefficient (JRC) of rock masses. These include Barton profile method, direct investigation method, roughness parameter method,size range rate method,and telescopic method. 本文首先评述了现有确定岩体结构面粗糙度系数JRC的各种方法;如Barton经典剖面法、直接量测法、表面粗糙参数法、伸长率法、幅度法等.
- After that,the authors take Beishan of Gansu province for the HLW disposal area as the example,and measure the joint roughness coefficient(JRC) of surface rock mass and cores of borehole. 文章评述了现有岩体结构面粗糙度系数(JRC)的各种测定方法及存在的问题,分析了在高放废物处置库预选场址甘肃北山花岗岩地区,用"简易纵剖面仪"进行地表岩体及钻孔岩心裂隙结构面JRC的测量结果。
- THE STATISTICAL ESTIMATION OF ROCK JOINT ROUGHNESS COEFFICIENT 岩体结构面粗糙度系数的统计估测
- Recent development of the joint roughness coefficient (JRC) 岩体结构面粗糙度系数JRC的研究现状
- Fractal research of joints roughness coefficient of rock 节理粗糙度与分维
- joint roughness coefficient 粗糙度系数
- joints roughness coefficient 节理粗糙度系数
- The amplitude frequencies and distribution interval of power spectrum density of road surface depend on the roughness coefficient. 路面不平度系数的大小决定了幅值频次和路面功率谱密度的分布区间。
- This paper analyzes the roughness coefficient of the downriver section in Wutong River,basing on the practical survey flood imprint materials in 1994. 采用1994年实测洪痕资料对梧桐河下游段糙率系数进行了分析。
- A simplified model based on drag concepts is developed to evaluate the roughness coefficient for unsubmerged vegetation. 并基于阻力的概念，建立了一个简化的模型来估计菖蒲的曼宁糙率系数。
- It mainly produces the left and weaves rough printing and doubles rough printing and seersucker printing, besides bamboo joint rough and doubles rough. 主要生产经营左织麻印花和双打麻印花外加泡泡纱印花，此外还经营染色的竹节麻、双打麻。
- It is also found that, when the water depth is fixed, the Manning roughness coefficient increases as the longitudinal pier spacing increases up to approximately the pier width. 值得一提的是，当水深维持不变时，曼宁粗糙系数也会持续增加直至纵向基桩间距与其宽度相同为止。
- Roughness coefficients are closely related to Reynolds number,but the tendencies are quite different. 在坡度较缓的坡面上，阻力系数随雷诺数的增大而减小。
- The Manning roughness coefficients for the multi-pier are evaluated for the various cases of longitudinal and lateral pier spacing and water depth. 对于不同形状的多排基桩及其配置的水力试验,该试验结果仍然可用于计算隧道排水系统的排水能力,进而可总结出一条经验公式。
- equivalent roughness coefficient 等值糙率系数
- Manning ' s roughness coefficient 糙率系数
- The delays put the whole schedule out of joint. 一再的拖延打乱了全部安排。
- The roughness coefficients are inverse proportional to Reynolds number on gentle slopes, and on the contrary,they are direct proportional to Reynolds number on steeper slopes. 在坡度较陡的坡面上，由于水流侵蚀作用强度的变化及重力影响作用的渐趋显著，阻力系数又会随雷诺数的增大而变大。
- Manning' s roughness coefficient 糙率系数
