Results 1 to 10 of about 29,969 (311)

Study on the Division of the Affected Zone under Construction Unloading and Its Construction Sequence of the Multiline Parallel River-Crossing Pipe Jacking

Advances in Civil Engineering, 2023
There are many advantages of reasonably determining the affected zone and its construction sequence for the multiline parallel pipe-jacking construction, such as convenient to reasonably arrange the pipeline section distribution mode, reducing the ...
Zhang Ziguang, Mao Ruijin, Zhang Jiesheng, Wang Xuefeng, Zhang Mengqing   +4 more
doaj   +1 more source

The Deformation, Failure Mechanisms, and Stability Control of the Surrounding Rock of Deep Cross-Measure Roadway: A Case Study

Advances in Civil Engineering, 2023
In view of the difficulty in controlling the surrounding rock stability of deep cross-measure roadways, a deep cross-measure roadway of the Wanfu coal mine, a typical high-stress mine, was monitored on site and analyzed under the original support scheme.
Wenzheng Du, Rui Pan, Hongjin Sun
doaj   +1 more source

Study on the Nonlinear Permeability Mechanism and Pore Structure Characteristics of Deep Confined Aquifers

Applied Sciences, 2023
The study of deep soil mechanics is the basis of deep shaft construction. Exploring the nonlinear permeability mechanism of deep confined aquifers in depth is the prerequisite and foundation for carrying out calculations of the hydrophobic consolidation ...
Shilong Peng, Zhijun Li, Yuhao Xu, Guangyong Cao   +3 more
doaj   +1 more source

Research on the Elastoplastic Theory and Evolution Law of Plastic Zone Contours of Horizontal Frozen Walls under Nonuniform Loads

Applied Sciences, 2023
The study of the changes in stress and deformation of frozen walls during excavation has always been a hot topic in underground freezing engineering, and the size of the plastic zone is an important basis for evaluating the stability of frozen walls.
Shilong Peng, Yuhao Xu, Guangyong Cao, Lei Pei   +3 more
doaj   +1 more source

Macro-Micro Study on Mechanical Properties of Frozen Fine Sandstone Based on DEM Mathematical Model

Journal of Function Spaces, 2022
The study of freezing rock mechanical properties is getting more and more urgent because of coal mine construction in western China. Particle discrete element method (DEM) can describe discontinuous medium problem mathematically.
Maoyan Ma, Min You, Shuguang Peng, Biao Zhang, Yuan Lin   +4 more
doaj   +1 more source

Field Test and Numerical Simulation of a New Layered Structure

Buildings, 2023
To study the attenuation and dispersion effect of a new protective structure distribution layer constructed with a hollow particle composite material on the shock wave, a similar model field explosion test was carried out in this paper.
Ying-Qi Hao, Zhong-Bao Ye, Xin-Gui Zhou
doaj   +1 more source

Preparation and Performance Characterization of Zinc Silicate-Potassium Silicate Waterborne Anticorrosive Paint [PDF]

Cailiao Baohu, 2023
In order to solve the problems of volatile organic compounds (VOC) and easy aging of organic solvent based anti-corrosion coatings commonly used for reinforcing steel bars in autoclaved aerated concrete (AAC) plates，waterborne inorganic silicate anti ...
SHAN Qingting, XU Rongsheng, ZHANG Miaomiao, LIN Jian
doaj   +1 more source

Study on the Characteristics of Self-Stabilizing Height Distribution for Deep Foundation Pit Vertical Sidewall in Binary Strata of Upper Soil and Lower Rock

Advances in Civil Engineering, 2021
The self-stability height of the foundation pit sidewall is an important criterion for evaluating the safety degree and designing the supporting structure.
Zhang Ziguang, Yihang Li, Jiesheng Zhang, Tao Xu, Guangyong Cao, YiKang Xu   +5 more
doaj   +1 more source

In-structure shock of underground structures: A theoretical approach [PDF]

Engineering Structures, 2010
Abstract When an underground structure is subjected to a subsurface explosion, an in-structure shock occurs. The in-structure shock can be a major cause of disruption and even damage to the instruments and equipment contained in the structure if the detonation is relatively distant. For this reason, an appropriate analysis and prediction of explosion-
Ma, Guowei, Zhou, Hongyuan, Lu, Yong, Chong, Karen   +3 more
openaire   +2 more sources

Study on Mechanical Behavior of Jurassic Frozen Sandstone in Western China Based on NMR Porosity

Journal of Chemistry, 2020
Study of frozen rock mechanical properties is necessary for safe application of the artificial ground freezing method in excavation of Chinese western water-rich soft rock layers.
Maoyan Ma, Yishun Huang, Guangyong Cao, Jian Lin, Shiliang Xu   +4 more
doaj   +1 more source