Results 51 to 60 of about 503 (252)

A rock brittleness index based on the postpeak energy release rate and damage surface characteristics for brittle hard rock

Deep Underground Science and Engineering, EarlyView.
This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang, Zaobao Liu, Jing Xue, Bo Lu, Wei Zeng, Dengke Zhang   +5 more
wiley   +1 more source

Centrifuge modelling of monotonic and cyclic lateral responses of monopiles in quartz and carbonate sands [PDF]

E3S Web of Conferences
This study evaluates the soil-structure interaction of monopiles subjected to monotonic and cyclic lateral loading by means of centrifuge modelling. The monopile were installed in two types of dense sands: quarts and carbonate. To evaluate the static and
Soares de Almeida Márcio de Sousa, Wamser Barra Maria Fernanda, Gomes Naiala Fidelis, Pereira Gomes José Wedney, Ferreira de Almeida Maria Cascão, Futai Marcos Massao   +5 more
doaj   +1 more source

Gaborlet‐guided sparse filtering: A novel intelligent method for lithology identification by vibration signals while drilling

Deep Underground Science and Engineering, EarlyView.
The flowchart illustrates rock specimen testing, vibration signal acquisition, and feature extraction with Gaborlet and sparse filtering for classification. Abstract Traditional lithology identification methods mainly rely on core sampling and well‐logging data.
Jian Hao, Danqi Zhang, Zhenqi Song, Jinrui Wang, Qi Wang, Heqing Liu   +5 more
wiley   +1 more source

Analysis of crack development in loess deep filled ground based on physical modelling tests

Zhongguo dizhi zaihai yu fangzhi xuebao
Cracks are a common issue in deep filled construction projects, and conventional methods often struggle to accurately predict their development. To guide the anti-crack design for deep-filled loess projects, a prototype of a typical gully section from a ...
Jingyuan CAO, Jianguo ZHENG, Yongtang YU, Jie CAO   +3 more
doaj   +1 more source

Geotechnical centrifuge under construction

Eos, Transactions American Geophysical Union, 1982
Modifications are underway at the National Aeronautics and Space Administration (NASA) Ames Research Center in California to transform a centrifuge used in the Apollo space program to the largest geotechnical centrifuge in the free world. The centrifuge, to be finished in August and opened next January, following check out and tuning, will enable ...
openaire   +1 more source

Strengthening urban resilience in China through underground infrastructures management: Addressing global climate challenges with technological solutions

Deep Underground Science and Engineering, EarlyView.
This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh, Tonni Agustiono Kurniawan, Christia Meidiana, Abdelkader Anouzla, Faissal Aziz, Imran Ali, Joan Cecilia C. Casila, M. Imran Khan, Dongdong Zhang, Meihui Jiang, Mohd Hafiz Dzarfan Othman, Md Munir Hayet Khan, Kasun Kumara Dissanayake   +12 more
wiley   +1 more source

Calibration method and effect factors of miniature pore water pressure transducer for geotechnical centrifuge modelling

Yantu gongcheng xuebao, 2020
Accurate measurement of pore water pressure is one of key technologies in geotechnical centrifugal modelling. Aiming at noticeable scatter of dynamic pore pressure measuring results in the recently repeated dynamic centrifugal liquefaction tests at home ...
TANG Zhao-guang 1, WANG Yong-zhi 1, SUN Rui 1, WANG Ti-qiang 1, DUAN Xue-feng 1, WANG Hao-ran1
doaj   +1 more source

Modeling and experimental validation of bolt–grout bond–slip behavior for deep underground excavation support

Deep Underground Science and Engineering, EarlyView.
A novel shear‐lag model, validated by pull‐out tests, incorporates a constant bond stress stage to predict the complete load–displacement response of grouted rock bolts, providing a new tool for optimizing anchorage length and material toughness in deep underground engineering. Abstract The stability of rock masses in deep underground excavations, such
Wenhui Bian, Xiaohui He, Kexue Wang, Yufei Wu, Guoxin Wang, Shaochen Zhang, Jun Yang   +6 more
wiley   +1 more source

Centrifuge modelling of a soil nail retaining wall

Journal of the South African Institution of Civil Engineers, 2013
This paper describes a physical model of a soil nail retained excavation face which was tested in the new geotechnical centrifuge at the University of Pretoria.
S W Jacobsz
doaj  

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