Stress analysis of crack characteristic of anthracite under dynamic loading
Yun Bai, Feng Gao, Ning Luo, Zhizhen Zhang, Yue Niu, Shanjie Su
发布时间：2025-02-28
关键词：Stress analysis of crack characteristic anthracite under dynamic loading
摘要：AbstractThe coal dynamic characteristic stress identification under dynamic load is important for guiding underground mineral mining and predicting underground dynamic disasters. In this article, the dynamic compression test of anthracite under five strain rates is carried out, the evolution law of three kinds of crack characteristic stress is analyzed, and a prediction model of the crack chara...
阅读全文 PDF 引用A novel construction approach for the pore structure model principally focuses on the controllable roundness of rock particles
Jiabin Dong, Ning Yang, Yi Jin, Ying Wu, Dandan Liu, Junling Zheng, Jingyan Zhao
发布时间：2025-02-28
关键词：A novel construction approach for the pore structure model principally focuses on controllable roundness of rock particles
摘要：AbstractPores among particles provide the main space for the storage and migration of deep underground fluids (such as oil, gas, groundwater, and unconventional natural gas). The pores form a pore structure with complex morphology which is mainly dominated by the shape and distribution of particles. Therefore, the reconstruction of the pore structure or granular porous media and the evaluation ...
阅读全文 PDF 引用Experimental and constitutive modeling investigations on marble in Jinping Underground Laboratory
Susheng Wang, Qiang Zhang, Hao Luo, Zhinan Lin
发布时间：2025-02-28
关键词：Experimental and constitutive modeling investigations on marble in Jinping Underground Laboratory
摘要：AbstractThe Jinping Underground Laboratory is the deepest and largest underground laboratory in the world, with a maximum buried depth of approximately 2400 m. The objective is to study the brittle-ductile transition of marble through a combination of experimental research and constitutive modeling. Triaxial compression and triaxial cyclic loading tests are initially conducted to explore the a...
阅读全文 PDF 引用Fracturing behaviors of flawed granite induced by dynamic loadings: A study based on DIP and PFC
Xiao Wang, Wenbin Sun, Changdi He, Wei Yuan, Vahab Sarfarazi, Haozheng Wang
发布时间：2024-05-07
关键词：Fracturing behaviors of flawed granite induced by dynamic loadings A study based on DIP and PFC
摘要：AbstractThis study explored the dynamic behaviors and fracturing mechanisms of flawed granite under split-Hopkinson pressure bar testing, focusing on factors like grain size and flaw dimensions. By means of digital image processing and the discrete element method, Particle Flow Code 2D (PFC2D) models were constructed based on real granite samples, effectively overcoming the limitations of prior...
阅读全文 PDF 引用Application of integrated geophysical techniques in geothermal exploration in Binhai County, Jiangsu Province
Juncheng Wang, Shiyin Gao, Jianguo Wang, Lin Li, Xiaoyan Gong, Jinbao Su
发布时间：2024-03-07
关键词：controlled source audio frequency magnetotelluric method (CSAMT), geothermal exploration,integrated geophysical technology, micromotion detection technology
摘要： geothermal geological model was established for the BinhaiCounty of Jiangsu Province in China and potential geothermal well locationswere identified. On this basis, a geothermal well was drilled nearly 3000 mdeep, with a daily water volume of over 2000 m3/day and a geothermal watertemperature of 51°C at the well head. It is found that predictions using the aboveintegrated geophysical exploration technology are in good agreement with thewell geological formation data. This integrated geophysical technology can beeffectively applied for geothermal exploration with high precision and reliability
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