Results 71 to 80 of about 33,876 (253)

Resilient Modulus of Recycled Aggregates Obtained by Means of Dynamic Tests in a Triaxial Apparatus

Procedia - Social and Behavioral Sciences, 2012
AbstractThe main objective of this experimental research is to prove the hypothesis of the use of recycled materials (C&D) in building road subbases by means of a comparative study which investigates the resilient behaviour of unbound aggregate blends.The results given by the investigation clearly prove that the blend made of recycled materials has ...
Cerni G, COLAGRANDE, SANDRO
openaire   +1 more source

Effect of confining pressure on fracture characteristics and mineralogical behavior of tight sandstone specimens after hydraulic fracturing

Deep Underground Science and Engineering, EarlyView.
Hydraulic fracturing in tight sandstone and fracture propagation characteristics using backscattered electron‐scanning electron microscope (BSE‐SEM) images. Abstract This study focuses on hydraulic fracturing experiments conducted under triaxial conditions on tight sandstone specimens from Shivpuri district, Madhya Pradesh, India.
Pankaj Rawat, Narendra Kumar Samadhiya
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

A review on rockburst prediction and prevention to shape an ontology‐based framework for better decision‐making for underground excavations

Deep Underground Science and Engineering, EarlyView.
A scientometric analysis of 2449 journal articles and a comprehensive review of 336 papers were conducted, discussing and identifying challenges and research gaps in rockburst prediction and prevention and proposing an ontology‐based framework for better decision‐making in underground excavations. Abstract With underground engineering projects becoming
Hongchuan Yan, Haijiang Li, Hongqiang Xie, Mingli Xiao, Jianliang Pei, Huaizhong Liu, Jiangda He   +6 more
wiley   +1 more source

Triaxial Simple Shear test: TxSS [PDF]

E3S Web of Conferences, 2019
This paper presents a combined triaxial simple shear (TxSS) apparatus developed by the Research Institute of Hydro-Québec (IREQ) in collaboration with the soil dynamics and geotechnical engineering group of the Université de Sherbrooke (Québec, Canada ...
Karray Mourad, Chekired Mohamed
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
core  

How terrestrial planets traverse spin-orbit resonances: A camel goes through a needle's eye

, 2012
The dynamical evolution of terrestrial planets resembling Mercury in the vicinity of spin-orbit resonances is investigated using comprehensive harmonic expansions of the tidal torque taking into account the frequency-dependent quality factors and Love ...
Danby, Efroimsky, Murray, Valeri V. Makarov, Williams   +4 more
core   +1 more source

Permeability of granite from a shallow buried mountain pipe gallery tunnel under unloading confining pressure

Deep Underground Science and Engineering, EarlyView.
Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang, Yonghua Ye, Jianping Zuo, Baojiang Han, Weigang Jiao   +4 more
wiley   +1 more source

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

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