Results 181 to 190 of about 208,504 (261)

Water saturation effects on dynamic fracture behavior of sandstone

International Journal of Rock Mechanics And Mining Sciences, 2019
To understand combined effects of water saturation and loading rate on the fracture behavior of rock materials, dynamic notched semi-circular bending (NSCB) tests were conducted on dry and saturated sandstone specimens under a wide range of loading rates
Zilong Zhou, Xin Cai, D. Ma, Xueming Du, Lu Chen, Hai-quan Wang, Haizhi Zang   +6 more
semanticscholar   +1 more source

Role of Alkali Type in Chemical Loss and ASP-Flooding Enhanced Oil Recovery in Sandstone Formations

SPE Reservoir Evaluation and Engineering, 2020
Chemical combination flooding techniques, particularly alkali/surfactant/polymer (ASP) flooding, have proved to be effective in enhanced oil recovery (EOR).
H. Zhong, Tingbao Yang, H. Yin, Jun Lu, Kai Zhang, Chun-quan Fu   +5 more
semanticscholar   +1 more source

Study on the mechanical properties and damage constitutive model of frozen weakly cemented red sandstone

Cold Regions Science and Technology, 2020
The freezing method is an effective method for shaft construction in water-rich strata. To determine the mechanical properties of frozen walls that contain ice, study the fracture and instability of frozen rock walls, and solve ice-rock coupling problems,
Bai Yao, Shan Renliang, Y. Ju, Yongxin Wu, Peng Sun, Zhien Wang   +5 more
semanticscholar   +1 more source

Mechanical properties and fracture evolution of sandstone specimens containing different inclusions under uniaxial compression

International Journal of Rock Mechanics And Mining Sciences, 2019
To investigate the effects of inclusions filled in holes, including inclusion strength, stiffness and shape, on the mechanical properties and fracture evolution of rock, a series of uniaxial compression tests were conducted on prismatic sandstone ...
Quanqi Zhu, Diyuan Li, Zhenyu Han, Xibing Li, Zilong Zhou   +4 more
semanticscholar   +1 more source

The influence of salinity and mineral components on spontaneous imbibition in tight sandstone

, 2020
Spontaneous imbibition is one of the fundamental mechanisms to understand the complicated liquid-formation interaction during hydraulic fracturing operations in tight sandstone formation.
Jianchao Cai, Caoxiong Li, Kaoping Song, Shuangmei Zou, Zhengming Yang, Yinghao Shen, Qingbang Meng, Yang Liu   +7 more
semanticscholar   +1 more source

Fracture analysis of sandstone with a single filled flaw under uniaxial compression

Engineering Fracture Mechanics, 2018
Natural rock joints with infilling materials such as clay, broken rock fragments, or even cement mortar infusion material are common in the field of rock engineering.
Shuting Miao, P. Pan, Zhenhua Wu, Shao-jun Li, Shankun Zhao   +4 more
semanticscholar   +1 more source

Temperature-induced deformational responses and microstructural alteration of sandstone

, 2020
The high-temperature response of rock is quite useful for successful exploration and exploitation of various conventional as well as unconventional energy systems such as underground coal gasification, and geothermal energy, where the associated rocks ...
B. Mahanta, P. Ranjith, V. Vishal, T. Singh   +3 more
semanticscholar   +1 more source

The effect of water on the creep behavior of red sandstone

Engineering Geology, 2019
Water is an important factor influencing the long-term stability of underground construction. In the present work, a series of uniaxial compressive strength tests and multistage creep tests were performed on red sandstone specimens under different water ...
Chaoyun Yu, S. B. Tang, Chun’an Tang, D. Duan, Yongjun Zhang, Zhengzhao Liang, Ke Ma, T. Ma   +7 more
semanticscholar   +1 more source

Mechanical, acoustic, and fracture behaviors of yellow sandstone specimens under triaxial monotonic and cyclic loading

International Journal of Rock Mechanics And Mining Sciences, 2020
The mechanical, acoustic, and fracture behaviors of sandstone play important roles in design and stability analysis in rock engineering applications. In this research, a series of triaxial monotonic and cyclic tests was conducted on yellow sandstone. The
Shengqi Yang, Yan‐Hua Huang, Jingzhou Tang   +2 more
semanticscholar   +1 more source

Cracking process and acoustic emission characteristics of sandstone with two parallel filled-flaws under biaxial compression

, 2020
Discontinuities widely exist in natural rocks. To investigate the progressive micro-cracking process and failure mechanism of fissured rocks, a series of biaxial compression tests were conducted on sandstone specimens containing two parallel filled flaws
Ruide Lei, Zhenyu Zhang, F. Berto, P. Ranjith, Li Liu   +4 more
semanticscholar   +1 more source