Research on Deformation Mechanisms of a High Geostress Soft Rock Roadway and Double-Shell Grouting Technology by Fengnian Wang, Shizhuang Chen, Pan Gao, Zhibiao Guo, Zhigang Tao

“…This technology can be useful when analyzing and preventing large deformation of soft rock roadways.…”
Get full text

“Relief-Retaining” Control Technology of Floor Heave in Mining Roadway with Soft Rock: A Case Study by Ai Chen, Xuebin Li, Xuesheng Liu, Yunliang Tan, Ke Xu, Honglei Wang

“…The floor heave problem is one of the important factors affecting the stability and safety of surrounding rocks of roadways, especially in deep high-stress mining roadway with soft rock. The return airway of no. 130203 working face in Zaoquan Coal Mine of Ningdong Mining Area in Northwest China is the research object in this study. …”
Get full text

Deformation and failure characteristics of soft rock tunnel surrounding rock under mining and water immersion conditions by XIE Panshi, FANG Jiarui, HU Bosheng, ZHANG Bo, ZHANG Xi, DUAN Siyu

Subjects: “…soft rock tunnel…”
Get full text

Numerical Studies of Floor Heave Control in Deep Mining Roadways with Soft Rocks by the Rock Bolts Reinforcement Technology by Ivan Sakhno, Svitlana Sakhno

“…The floor heave is one of the key factors that can restrict high-efficiency and safety mining, especially in the deep roadways with soft rock. Considering the influences of rock fracturing over time on rock mass properties, a case study of the floor heave evolution and rock bolts reinforcement technology was performed in this paper. …”
Get full text

Study on Roof Presplitting Mechanism and Deformation Control of Reused Roadway in Compound Soft Rock by Roof Presplitting Approach by Fuzhou Qi, Dangwei Yang, Xinming Li, Bin Li, Yingying Zhai, Shuisheng Yu

“…Based on the compound soft rock movement law, the rock formation structural features for a mining roadway were examined. …”
Get full text

Creep Energy Evolution of Red-Bed Soft Rocks in South China under Chemical-Stress-Seepage Coupling by Shuguang Zhang, Fanyao Peng, Yingbo Li, Zhifeng Liu, Wenbo Liu

“…The red-bed soft rocks in South China have obvious creep characteristics and are prone to engineering geological disasters such as landslide and foundation settlement under the action of rainfall, groundwater, and load. …”
Get full text

Collaborative control technology and application of support and modification for soft-rock roadway in a kilometer-deep coal mine by En Wang, Shuaifeng Yin, Xuexi Chen, Ze Gao, Aiguo Sun, Yitao Yan

“…Abstract The soft-rock roadways in kilometer-deep coal mines are often damaged by large deformation and have to be periodically expanded and repaired, which seriously restricts the safe and efficient production of coal mines. …”
Get full text

Deformation and Failure Evolution Law and Support Optimization of Gob-Side Entry in Weakly Cemented Soft Rock under the Influence of Fault by Chengfu Ma, Fenghai Yu, Kai Zhou, Xuerui Yang, Bo Sun, Xinyu Yao, Yani Chi, Yuanzhi Zhang

“…Under the condition of weakly cemented soft rock in Western China, the surrounding rock deformation of gob-side entry is obvious, especially under the influence of fault, and the problem of surrounding rock control becomes increasingly prominent. …”
Get full text

Analysis of Mechanical Properties and Slope Stability of Red Bed Soft Rock: A Case Study in Xinjiang Irrigation Diversion Channel by Da Liu, Jianglin Gao, Fang Chen, Songtao Hu, Xiaohua Zhao, Yan Li

“…The channel slope in the red-bed soft rock area is prone to instability and collapse due to the influence of the channel flow movement, rainfall, weathering, and other factors. …”
Get full text

Support System for Tunnelling in Squeezing Ground of Qingling-Daba Mountainous Area: A Case Study from Soft Rock Tunnels by Xiuling Wang, Jinxing Lai, Rodney Sheldon Garnes, Yanbin Luo

Get full text

Field Detection and Numerical Simulation Study on Roof Asymmetric Fracture Mechanism of Large-Span Soft Rock Roadway with Discontinuity Surface by Liang Chen, Shouyang Gao, Bin Miao, Nan Yao, Shizhong Zhang, Wei Zhang

“…Research results can provide an extremely important reference for the optimization and design of support scheme with discontinuity-thick soft rock roof-large span roadways.…”
Get full text

Failure Mechanism Analysis and Support Design for Deep Composite Soft Rock Roadway: A Case Study of the Yangcheng Coal Mine in China by Bangyou Jiang, Lianguo Wang, Yinlong Lu, Shitan Gu, Xiaokang Sun

“…This paper presented a case study of the failure mechanisms and support design for deep composite soft rock roadway in the Yangcheng Coal Mine of China. …”
Get full text

Study on Zonal Cooperative Control Technology of Surrounding Rock of Super Large Section Soft Rock Chamber Group Connected by Deep Vertical Shaft by Shengrong Xie, Zaisheng Jiang, Dongdong Chen, En Wang

“…Aiming at solving the problem of asymmetric deformation, failure, and stability control of surrounding rock caused by the excavation of deep super large section soft rock chamber group passing through multilayer strata, taking super large section soft rock chamber group connected by deep vertical shaft in Wuyang Coal Mine as the engineering background, the deformation development mode of surrounding rock, the expansion situation of loosening range, and the plastic failure response characteristics in chamber group under the disturbance influence are monitored and numerically analyzed. …”
Get full text

Study on the Constant Resistance Coupling Support Technology for Rock Column at the Intersection Point of Deep Soft Rock Large Section Roadway: A Case Study in China by Huichen Xu, Yong Zhang, Jinkun Yang, Jiangbing Li, Xiaoming Sun, Cheng Xie

“…The field engineering practice and field monitoring data show that the dual-control constant resistance coupling support control technology has a good control effect on the deformation of the rock column at the large cross section intersection of the deep soft rock roadway and can be effectively used in the engineering practice.…”
Get full text

Macroscopic and microscopic characteristics of nanosilica sol-based composite grout in sealing fractured argillaceous rock: A comparative study with silica sol and cement slurry by Zhe Xiang, Nong Zhang, Dongjiang Pan, Zhengzheng Xie, Peng Wang, Dongxu Liang

Subjects: “…Argillaceous soft rock…”
Get full text

Calculation Method of Overburden Damage Height Based on Fracture Mechanics Analysis of Soft and Hard Rock Layers by Liang Chen, Shaowu Fan, Can Zhao, Lang Zhang, Zhiheng Cheng

“…In view of the lack of soft rock fracture mechanics analysis and the improper calculation of the damage height of overburden rock caused by constant rock residual bulking coefficient to be used regularly in the analysis, in this paper, we constructed a fracture model of soft and hard strata by giving a quantitative classification criterion of soft and hard rocks and introducing a fracture failure criterion of soft rock strata and the space constraint condition of broken-expansion rock formation. …”
Get full text

Experimental Study on Load Bearing Characteristics of Steel Fiber Reinforced Concrete Lining in the Soft Surrounding Rock Tunnel by Guang-yao Cui, Jia-suo Qi, Dao-yuan Wang

“…Tunnels in soft rock with high ground stress will encounter the problem of large deformation of surrounding rock. …”
Get full text

Study on Mechanical Response and Stability Algorithm of Soft and Hard Rock Interbedded Slope Excavation by Qingyang Ren, Xin Meng

“…According to the relative position of the soft rock layer and the toe of the slope, the sliding surface of soft and hard rock interbedded slope can be divided into two types, namely, circular-straight sliding surface and circular-straight-circular sliding surface. …”
Get full text

Formation Mechanism and Stability Analysis of the Hejia Landslide by Hao Zhang, Zaiqiang Hu, Xingzhou Chen, Hongru Li

“…Through field investigation and analysis of regional geological conditions, it is concluded that Hejia landslide is a large-scale landslide, through long-term sliding-bending deformation; it is generated from the external hard rock with thick layers and sliding zone for layered soft rock; the formation mechanism of landslide is as follows: (1) high-steep and hard-soft layered slope is the slope structure condition that caused the large landslide; (2) the existence of thick soft rock belt provides material conditions for the formation of slip surface; (3) certain air conditions provide displacement space for the separation and disintegration of the sliding body, and the landslide is stable at present. …”
Get full text

A Theoretical Calculation Method of the Unsupported Span for the Shallow Tunnel in the Soft Stratum by Xiaoxu Tian, Zhanping Song, Guannan Zhou, Xiaowei Zhang

“…The unsupported span of the shallow buried tunnel in the soft rock stratum is a linear function of the support pressure. …”
Get full text