Results 71 to 80 of about 181,167 (285)

Creep properties and constitutive model of diabase in deep water conveyance tunnels

Deep Underground Science and Engineering, EarlyView.
The axial and lateral creep characteristics of diabase were analyzed based on compression creep tests. The nonlinear viscoelastic‐plastic model capable of describing the whole creep process was established based on the fractional derivative and damage theories.
Zhigang Tao, Pengxiao Guan, Xiaojie Yang, Keyuan Liu, Mingjiu Cai, Hong Yang   +5 more
wiley   +1 more source

Failure characteristics and the energy criterion of rock with a through‐going joint under true‐triaxial unloading conditions: Insights from the DEM model

Deep Underground Science and Engineering, EarlyView.
The rock failure mode is significantly influenced by the contributing factors, such as the joint inclination, the initial confining pressure, and the unloading point. We found six typical rock failure modes after a large number of numerical tests. Abstract Excavation unloading damages rock masses, with preferential failure along geological defects in ...
Fei Liu, Changhui Liang, Sijia Liu, Yongjun Zhang, Luo Wang   +4 more
wiley   +1 more source

Mechanical Behavior and Damage Evolution for Granite Subjected to Cyclic Loading

Advances in Materials Science and Engineering, 2018
This paper focuses on the mechanical behavior and damage evolution of Huashan granite subjected to cyclic loading. Four levels of confining pressure (0, 15, 25, and 35 MPa) were applied during cyclic axial loading by using a Rock Test System (MTS815 ...
Zhiliang Wang, Jikang Yao, Nuocheng Tian, Jingbin Zheng, Peng Gao   +4 more
doaj   +1 more source

PRENOLIN project. Results of the validation phase at sendai site [PDF]

, 2017
One of the objectives of the PRENOLIN project is the assessment of uncertainties associated with non-linear simulation of 1D site effects. An international benchmark is underway to test several numerical codes, including various non-linear soil ...
Amorosi, Angelo, Arduino, Pedro, Assimaki, Dominiki, Atsushi, Nozu, Boldini, Daniela, Chen, Long, Chiaradonna, Anna, Deborah, Sicillia, Demartin, Florent, di Lernia, Annamaria, Diego Mercerat, E., Ebrille, Marco, Etienne, Bertrand, Fabrice, Hollender, Falcone, Gaetano, Foerster, Evelyne, Foti, Sebastiano, Garini, Evangelia, Gazetas, George, Ghofrani, Alborz, Gingery, Jim, Glinsky, Nathalie, Gélis, Céline, Harmon, Joseph, Hashash, Youssef, Hirosho, Kawase, Iai, Susumu, Jeremić, Boris, Julie, Régnier, Kontoe, Stavroula, Kramer, Steve, Kristek, Jozef, Lanzo, Giuseppe, Lopez-Caballero, Fernando, Luis-Fabian, Bonilla, Marot, Marianne, Mcallister, Graeme, Moczo, Peter, Montoya-Noguera, Silvana, Musgrove, Michael, Nieto-Ferro, Alex, Pagliaroli, Alessandro, Paola Santisi d'Avila, Maria, Pierre-Yves, Bard, Pisanò, Federico, Richterova, Aneta, Sajana, Suwal, Shi, Jian, Silvestri, Francesco, Taiebat, Mahdi, Tropeano, Giuseppe, Verrucci, Luca, Watanabe, Kohei   +52 more
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Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

Undrained deformation characteristic of saturated soft clay under traffic loading

Shuiwen dizhi gongcheng dizhi
Previous studies on the undrained deformation behavior of saturated soft clay under traffic loading usually ignored the effect of cyclic confining pressure.
Lei SUN, Yuke WANG
doaj   +1 more source

Evaluation of Liquefaction Potential in Barandouz Dam based on Cone Penetration Test (CPT) [PDF]

رویکردهای نوین در مهندسی عمران, 2019
One of the important problems in earthquake geotechnical engineering is liquefaction phenomenon that happens in loose saturated granular soils. Liquefaction resistance of soils can be evaluated with using laboratory tests such as cyclic simple shear test,
Tahmineh Sheikhbaglou, Mohammad Hasanpour Sedghi, Naser Abdi   +2 more
doaj   +1 more source

Analytical stress solution framework for lined compressed air energy storage chambers and its application to safe burial depth determination and supporting effectiveness evaluation

Deep Underground Science and Engineering, EarlyView.
An analytical framework delivers a closed‐form stress solution for lined compressed air energy storage chambers, enabling the determination of the minimum safe burial depth. The solution quantitatively evaluates lining support effectiveness, offering a reliable tool for chamber design and optimization.
Zeyuan Sun, Cheng Zhao, Jinquan Xing, Qinyuan Luo   +3 more
wiley   +1 more source

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

Deep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza, Hendrik Grobler, Peter Apata Olubambi, Moshood Onifade, Manoj Khandelwal   +4 more
wiley   +1 more source

Energy Dissipation and Damage Evolution Characteristics of Shale under Triaxial Cyclic Loading and Unloading

Advances in Materials Science and Engineering, 2022
Rock engineering is highly susceptible to cyclic loads resulting from shale gas exploitation; it is very important to study the failure mechanism of underground rock mass under cyclic load.
Ziyun Li, Song Xie, Qianghui Song, Peiyong Wang, Dongyan Liu, Baoyun Zhao, Wei Huang   +6 more
doaj   +1 more source