Laboratory and Centrifuge Model Tests on Influence of Swelling Rock with Drying-Wetting Cycles on Stability of Canal Slope by Chen Zhang, Zheng-yin Cai, Ying-hao Huang, Hao Chen

“…Meanwhile, the failure mechanism of soft rock slope induced by D-W was discussed.…”
Get full text

Research on the Disintegration Characteristics of Carbonaceous Mudstone and Properties of Modified Materials by Xinxi Liu, Yu Li, Shengnan Li, Yanming Zhou

“…The results may provide a reference for the prevention and control of soft rock slopes.…”
Get full text

Vs30 Mapping and Soil Classification in Tiznit Region Based On H/V Spectral Ration Method by Cherki Fadoua, Tadili Mehdi, Tadili Benaissa, Mhammdi Nadia

“…The results show that the soil in the study area is divided into two classes according to the National Earthquake Hazards Reduction Program (NEHRP) classification: Class C refers to soft rock and very dense soils with VS30 greater than 360 m/s, while Class D represents stiff soils with VS30 values between 180 m/s and 360 m/s.…”
Get full text

Research on Shield Tunnelling Parameters Correlation in Composite Strata by Ziqi Guo, Huipeng Zhang, Xiaoyang Shi, Zhi Huang, Yiyong Xu, Zhiqiang Zhang

“…The complex formation has complicated geological changes, including soft rock, hard rock, and soft and hard inhomogeneous formation. …”
Get full text

Experiment and Numerical Simulation on Creep Mechanical Behaviors of Mudstone under Unloading Condition by Xudong Feng

“…The deep soft rock with complex occurrence conditions is easy to produce significant creep deformation under the influence of high in situ stress, high temperature, and disturbance, which has a great influence on the safety and long-term stability of structures with long service life, such as underground chambers and nuclear waste storage rooms. …”
Get full text

Characterization of Soil Properties and the Implications for Landslide Occurrence in Rubanda District. by Ainamaani, Samuel

“…And from the plasticity charts the PI and LL results reveals that the soils are clay of high plasticity and this signals chances of landslides Soil particle distribution The clay fraction for the soil were above 10% threshold identified from the analysis of the soil samples from the respective test pits as shown in the table below, this explains higher possibilities of extreme expansion potential and hence susceptible to land slides The bearing capacity of soil was determined as 250.825 kN/M3.When compared with the safe Safe/allowable bearing capacity of Soft rock 440kN/M3, the bearing capacity of soil is too low indicating high chance of collapsible soil.…”
Get full text

Particle Flow Analysis of Mechanical Properties and Failure Behaviour in Composite Rock Strata with Holes by Chuanwei Zang, Hongmo Zhu, Miao Chen, Shuo Yang, Liu Yang, Jia Zhou, Zuoru Zhang, Yang Chen

“…It shows that the first area to be damaged in composite rock strata transfers from soft rock to hard rock with the increase in dip angle. …”
Get full text

An Experimental Study on the Water-Induced Strength Reduction in Zigong Argillaceous Siltstone with Different Degree of Weathering by Yu-chuan Yang, Jia-wen Zhou, Fu-gang Xu, Hui-ge Xing

“…The water-softening property of soft rocks is a key problem in geotechnical engineering. …”
Get full text

Study on Seepage Simulation of High Pressure Grouting in Microfractured Rock Mass by Kai Wang, Lianguo Wang, Bo Ren, Hao Fan

“…Along with the large deformation and continuous rheology of the soft rock roadway, the fractures in the surrounding rock are likely to be compressed and closed, forming undeveloped microfractures, which hinder conventional grouting support methods. …”
Get full text

Experimental Study of the Creep Disturbance Effect and Acoustic Emission Characteristics of Mudstone with Different Moisture Contents by Yongjiang Yu, Pengbo Wang, Shipeng Zhang, Jingjing Liu

“…It is important to have a clear understanding of the creep characteristics of water-rich soft rocks under a dynamic load and the evolution of cracks because soft rock roadways in deep mines are very sensitive to disturbances, and instability and damage can easily occur under the impact of disturbances such as mining and blasting. …”
Get full text

Influence of Elevation on Slake Durability Index of Quartz Mica Schist: A Case Study of East Slope of Manjiazhai Open Pit by Yongfeng Lu, Kepeng Hou, Huafen Sun, Wei Sun, Shengyou Zhang, Jun Jiang

“…This study provides a new idea for guiding the research on the disintegration characteristics of similar soft rock slopes in the elevation direction.…”
Get full text

Nonlinear Dynamic Constitutive Model of Frozen Sandstone Based on Weibull Distribution by Lei Wang, Hongming Su, Shiguan Chen, Yue Qin

“…Furthermore, the fitting results serve as reference for the study of the constitutive model of weakly cemented soft rock and the construction of roadway freezing methods.…”
Get full text

Constitutive Model of Swelling Gypsum Rock by Chongbang Xu, Xiaojing Gao, Kaishun Zhang, Zhiguo Liu, Fan Zhao

“…Swelling of soft rock, such as gypsum rock, is one of the major threats in tunnel engineering, causing structure damages such as floor heave and inward movement of sidewalls during construction and operation. …”
Get full text

Strength and Deformation of Carbonaceous Shale Fillers Subjected to Water Content Fluctuation by Yafei Huang, Junyong Liu, Qian Wu, Lihua Yin, Xuesong Mao, Weipeng Ge

“…Carbonaceous shale is a dark, soft rock with poor water stability. To evaluate the feasibility of using this rock as a filler material for highway embankments, the scanning electron microscopy (SEM) test, the particle size analysis before and after vibration compaction, the California bearing ratio (CBR) test of repeated dry–wet alternation, the compression tests with different moisture, and the resilience modulus test of in-site infiltration were conducted. …”
Get full text

Failure Analysis of Deep Composite Roof Roadway and Support Optimization of Anchor Cable Parameters by Chen Li, Wenlong Zhang, Tianhong Huo, Rui Yu, Xidong Zhao, Ming Luo

“…The key points of stability of the roadway surrounding rock of soft rock composite laminated roof are obtained by theoretical analysis, i.e., improving the effective stress diffusion efficiency of the anchor cable through the reasonable arrangement of the anchor cable. …”
Get full text

Influence of Moisture Content on the Structural Characteristics of Argillaceous Weakly Consolidated Rock Caused by Dynamic Loading in the Coal Mine by Lingdong Meng, Lijun Han, Hexuan Zhu, Wenlong Dong, Wei Li

“…The argillaceous weakly consolidated rock is a kind of soft rock that will bring great difficulties in the construction process. …”
Get full text

Research on Anchor Cable and C-Shaped Tube Support Method in Deep Layers Roadway, Experimental Study, and Numerical Simulation by Renliang Shan, Shupeng Zhang, Shengchao Xiao, Junqi Liang

“…Results show that ACC and concrete spraying layer can form a stable extruded arch structure, so that the broken and soft rock within the loosen zone is in three-dimensional-stress state, effectively improving surrounding rock properties and controlling its deformation size. …”
Get full text

Quantitative Precursory Information of Weak Shocking Failures of Composite Soft Roof by Lihua Wang, Zenghui Zhao, Zhongxi Tian, Wei Sun

“…To reveal the mechanism of weak roof shocking in mine roadway arranged in weakly consolidated soft rock strata commonly observed in western China, a bearing system of composite roof composed of weakly consolidated soft rocks and coal layers was proposed. …”
Get full text

Determination of Shape Coefficient in Elastic Modulus Estimation with Penetration Test by Tongbin Zhao, Rui Mao, Kai Fang, Biwen Zhang, Fenghai Yu

“…The shape coefficient of hard rock is higher than that of soft rock. Shape coefficient should be selected reasonably according to the penetration depth in practical application, and the reason, furthermore, why back-calculated shape coefficient deviates from the theoretical value is also discussed.…”
Get full text

Can laser irradiation improve the strength of weak rock mass? by Xiaowei Feng, Peng Huang, Valter Carvelli, Gongshun Lin, Chuankai Zhu, Fengzhen He

“…The results showed that, in addition to the effects already demonstrated, laser irradiation can improve the strength of the soft rock, especially in the saturated state. The process involved a complicated phase change including melting and evaporation of the matrix under high-temperature and high-pressure to form a glassy high strength silicate material. …”
Get full text