Results 241 to 250 of about 233,189 (354)

Geological mapping and structural interpretation using a virtual outcrop digitiser, examples from the Lurestan province of the Zagros Range (Iran)

, 2010
Emilio Casciello, Eduard Saura, I. Romaire, Naiara Fernández, Jaume Vergés, John B. Thurmond, Dave Hunt   +6 more
openalex   +1 more source

Study on the failure mechanism of the shield excavation face in the sandy cobble stratum under different buried depths

Deep Underground Science and Engineering, EarlyView.
Abstract One of the significant challenges faced in shield tunnel construction is the risk of collapse resulting from abrupt changes in soil conditions in advance of the working face, particularly within the sandy cobble stratum. This study aims to effectively manage these sudden variations and to further investigate the failure mechanisms associated ...
Hua Jiang, Chongyang Liu, Ao Zhang, Xiaoyan Zhang, Yuhang Li   +4 more
wiley   +1 more source

Wireline‑log prediction of drilling‑induced fractures in the Woodford shale. [PDF]

Sci Rep
Chehadeh AH, Dewangan SK, Jaiswal P.
europepmc   +1 more source

Investigation of the failure characteristics of fissure tunnels under dynamic and static combinations

Deep Underground Science and Engineering, EarlyView.
This article aims to investigate the dynamic fracture response of fractured tunnel models under zero geological stress through physical experiments and numerical simulations. It further simulates the dynamic fracture characteristics of fractured tunnel models under geological stress ranging from 0 to 2.5 MPa using the numerical software AUTODYN ...
Peng Ying, Yu Ying, Xiaohan Li, Han Zhao, Kewei Yu, Zheming Zhu, Lei Zhou, Xibin Li   +7 more
wiley   +1 more source

Cooling artifacts in ex-situ pore characterization of thermally stimulated low-maturity shale: an in-situ SEM imaging reassessment. [PDF]

Sci Rep
Cheng L, Xu X, Gou J, Liu C, Han K, Jiang C, Liu N, Meng C, Liu J.   +8 more
europepmc   +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

Optimization of cut‐hole layout under high in situ stress based on numerical simulation and field tests

Deep Underground Science and Engineering, EarlyView.
This study investigates the blast‐induced rock damage patterns under different cut‐hole layouts and ground stress conditions through numerical simulations and field tests. The findings in this study provide valuable insights for similar underground engineering applications.
Junjie Zhao, Diyuan Li, P. G. Ranjith, Xinxin Lü, Yanliang Li, Xiaoli Su   +5 more
wiley   +1 more source

Analyzing water recharge mechanisms and predicting water inflow in deep mining based on hydrogeological structures: a case study. [PDF]

Sci Rep
Yuan S, Han G, Liu D, Li G, Zhang A, Li W.   +5 more
europepmc   +1 more source

Data‐driven analysis of the spatial dependence of grouting efficiency during tunnel excavation

Deep Underground Science and Engineering, EarlyView.
Prediction of grouting efficiency using machine learning is enhanced by adopting a training strategy that accounts for the grouting process across multiple rounds. Abstract Grouting with water–cement mixtures is the most widely used and cost‐effective method for managing excess water inflow during tunnel construction.
Huaxin Liu, Xunchang Fei, Wei Wu
wiley   +1 more source

Multifunctional GO-Based Hydrogels with Various Inorganic Additives for Oral Health and Photodynamic Activation. [PDF]

Gels
Sarosi C, Moldovan M, Petean I, Filip M, Furtos G, Balint S, Carpa R, Ionescu AC.   +7 more
europepmc   +1 more source