funding from the National Natural Science Foundation of China (Grant No.42277175);the pilot project of cooperation between the Ministry of Natural Resources and Hunan Province“Research and demonstration of key technologies for comprehensive remote sensing identification of geological hazards in typical regions of Hunan Province” (Grant No.2023ZRBSHZ056);the National Key Research and Development Program of China-2023 Key Special Project (Grant No.2023YFC2907400).
Joint roughness coefficient(JRC)is the most commonly used parameter for quantifying surface roughness of rock discontinuities in practice.The system composed of multiple roughness statistical parameters to measure JRC...
supported by the National Natural Science Foundation of China(No.42207175)。
The joint roughness coefficient(JRC) is one of the key parameters for evaluating the shear strength of rock joints.Because of the scale effect in the JRC,reliable JRC values are of great importance for most rock engin...
financially supported by the National Natural Science Foundation of China(Grant Nos.52225904 and 52039007);the Fundamental Research Funds for the Central Universities,CHD(Grant No.300102212207).
In order to improve the accuracy of the photogrammetric joint roughness coefficient(JRC)value,the present study proposed a novel method combining an autonomous shooting parameter selection algorithm with a composite e...
financially supported by the National Natural Science Foundation of China(Nos.U20A20266 and 12302503);the Scientific and Technological Research Projects in Sichuan Province(Nos.2024NSFSC0973,2024YFHZ0286,and 2023YFH0005)。
There is limited applicability to the current method for testing the direct tensile strength of rocks because it places stringent requirements on the testing equipment.This work suggests a universal method based on th...