Study on the Applicability of an Improved Pile-Beam-Arch Method of Metro Station Construction in the Upper-Soft and Lower-Hard Stratum by Xinping Guo, Annan Jiang, Shanyong Wang

“…Based on the characteristics of the upper-soft and lower-hard stratum in the Dalian city of China, a special structure with six pilot tunnels and three spans of the pile-beam-arch (PBA) method is proposed and applied to the construction of the Labor Park metro station. …”
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Observed Performance and FEM-Based Parametric Analysis of a Top-Down Deep Excavation in Soil-Rock Composite Stratum by Gang Lei, Panpan Guo, Fucai Hua, Xiaonan Gong, Lina Luo

“…This paper investigates the performance of a top-down deep excavation in soil-rock composite stratum. The behavior of the excavation bracing system, consisting of ground anchors and end-suspended piles, has not been well understood due to the lack of relevant research. …”
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Distribution Features of the Minimum Rock Cover Thickness of the Surrounding Rock Self-Stability of the Metro Tunnel in the Soil-Rock Dualistic Stratum by Ziguang Zhang, Tao Xu, Guangyong Cao, Xiaofeng Liu

“…Based on the maximum value of the self-stability of surrounding rock, the key issues affecting the distribution of the minimum mock cover thickness of the surrounding rock self-stability (MRCT-SRS) of the metro tunnel in the soil-rock dualistic stratum are discussed. The MRCT-SRS was studied for different soft stratum thicknesses Hs and excavation spans D based on cusp catastrophe theory. …”
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Characteristics of Stratum Structure and Fracture Evolution in Stratified Mining of Shallow Buried High-Gas-Thick Coal Seam by Similarity Simulation by Qin Guangpeng, Cao Jing, Wang Chao, Wu Shuo, Zhai Minghua

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Theoretical Analysis on Stress and Deformation of Overburden Key Stratum in Solid Filling Coal Mining Based on the Multilayer Winkler Foundation Beam Model by Chao Ma, Xiaoqian Guo, Lianying Zhang, Aihong Lu, Xianbiao Mao, Bing Li

“…The increase of mining height has little influence on the stress of key stratum that close to the coal seam (key stratum #1), but has a significant effect on the stress of key stratum that above the soft layers (key stratum #2). …”
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Whole-brain gray matter volume and fractional anisotropy of the posterior thalamic radiation and sagittal stratum in healthy adults correlate with the local environment by Keisuke Kokubun, Kiyotaka Nemoto, Toshiharu Ikaga, Yoshinori Yamakawa

“…Our findings reveal that a favorable environment is positively correlated with gray matter volume (GMV) in the frontal and occipital lobes, cerebellum, and whole brain, as well as with fractional anisotropy (FA) in the fornix (including the fornix stria terminalis), posterior thalamic radiation (PTR), sagittal stratum (SS), and whole brain. Among these, significant correlations between the local environment and whole-brain and cerebellar GMV, PTR, and SS FA remained after Bonferroni correction. …”
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The Mechanical Criterion of Activation and Instability of Normal Fault Induced by the Movement of Key Stratum and Its Disaster-Causing Mechanism of Rockburst in the Hanging Wall Mining by Lyu Pengfei, Lu Jiabin, Wang Eryu, Chen Xuehua

“…In this paper, based on the theory of key stratum, the mechanical model of fault slip instability in the normal fault during the hanging wall mining was established, and the instability criterion was derived. …”
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The Key Stratum Structure Morphology of Longwall Mechanized Top Coal Caving Mining in Extra-Thick Coal Seams: A Typical Case Study by Fulian He, Xiaobin Li, Wenrui He, Yongqiang Zhao, Zhuhe Xu, Quansheng Li

“…The results show that under the condition of LMTCCM in extra-thick coal seams, the key stratum forms the structure of low cantilever beam and high hinged rock beam. …”
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Numerical Simulation Study on Construction Effect of Top-Down Construction Method of Suspended Diaphragm Wall for Deep and Large Foundation Pit in Complex Stratum by Yunhui Zhu, Fuxue Sun, Mingqing Liu, Qifeng Liu, Xiaochun Li, Gang Ge

“…The research results of this article can guarantee the safety of diaphragm wall construction of deep and large foundation pit in complex stratum.…”
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Experimental Study of the Influence of Excavation Surface Stability and Sand Flowability Caused by Dense Slurry–Earth Pressure Balance Shield Tunneling in Silty Sand Stratum by Yongjin Qian, Fanlu Min, Zhenze Mo, Xihui Fan

“…To ensure the stable and efficient construction of the Earth pressure balance (EPB) shield in silt stratum, it is necessary to reduce the disturbance to the stratum during tunneling and reduce the risk of spewing and blocking during soil discharge. …”
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Research on Numerical Simulation of Top-Down Construction Effect of Diaphragm Wall of Deep and Large Foundation Pit under Different Working Conditions in Complex Stratum by Fuxue Sun, Mingqing Liu, Yunhui Zhu, Xiaochun Li, Gang Ge

“…In order to study the construction effect of deep and large foundation pit excavation and its impact on the surrounding environment under complex stratum conditions, the deep and large foundation pit of the top-down construction method of shield exit shaft of S2 line of Wenzhou City railway is taken as the research object in this paper. …”
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Blasting for Fracturing and Improving the Permeability of Deep, Soft, Outburst Prone Coal Seams Using Blasthole and Relief Hole Drilled into the Underlying Stratum: Optimal Hole Distance by Jianyu Zhang, Xingguo Zhao, Shigui Fu, Guodong Qiao, Xin Zhang, Shuai Yang

“…To address the problems with deep-hole presplit blasting intended to fracture and improve the permeability of deeply buried, soft, high-gas-content coal seams, a method using a blasthole and a relief hole drilled into the underlying rock stratum was proposed. By establishing a theoretical model for this purpose, the stress wave propagation characteristics during the blasting process were analyzed, and the working mechanisms of the relief hole and the stress transmission characteristics were investigated. …”
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Shield Equipment Optimization and Construction Control Technology in Water-Rich and Sandy Cobble Stratum: A Case Study of the First Yellow River Metro Tunnel Undercrossing by Fei Ye, Nan Qin, Xiang Gao, Xue-yong Quan, Xian-zhuo Qin, Bing Dai

“…It was completed after successfully overcoming several construction challenges, including strata with a high proportion of large-sized sandy cobble stratum being saturated, large-scale sand pits along the bank of the Yellow River, and a combination of boulders and erratic blocks of rock. …”
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Overlying strata movement law and rockburst prevention & control for fully mechanized top coal caving face in extra-thick coal seams by Hai Rong, Longyue He, Yadi Wang, Xiangzhi Wei, Shilong Wei, Suihan Yang, Jincheng Li, Linlin Chen

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PEASANTS AND LANDLORDS IN THE SYSTEM OF SERFDOM RELATIONS IN PRE-PETRINE RUSSIA by O. Yu. Yakhshiyan

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Research on blow-out of shield tunnel in sandy soil with shallow burial by Yong-Xiang Shi, Yong-Xiang Shi, Bao-Ping Xi, Qi-Guang Di, Feng-Nian Wang, Feng-Nian Wang

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Clinical application of hempseed or flaxseed oil-based lyotropic liquid crystals: Evaluation of their impact on skin barrier function by Vitek Mercedes, Matjaž Mirjam Gosenca

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Failure and development height of overlying rock of a water flowing fracture in goaf under a karst aquifer by Lulin Zheng, Xiong Liu, Qing Qiu, Youwen Tian, Weide Ren, Jin Xu, Xiaokun Wang

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Study on the Stability and Control of Gob-Side Entry Retaining in Paste Backfill Working Face by Changtao Xu, Xiangyu Wang, Dingchao Chen, Guanghui Wang, Zhenpeng Niu, Huixing Lu

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Disaster-inducing mechanism of the movement of high-position combination cantilever plate structures in non-uniform and extra-thick coal seam mining by ZHU Weibing, GUO Chunlei, LUO Xun, CHAI Faying, XIE Jianlin, CHAI Yi

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