Results 61 to 70 of about 375 (181)

Marine Fish Passage—Underappreciated Threats to Connectivity Within the Marine Environment

Marine Ecology, Volume 46, Issue 1, January 2025.
ABSTRACT Habitat fragmentation is a major threat to aquatic biodiversity loss. However, much of the focus is on the connectivity of freshwaters, with much less attention given to marine ecosystems. We contend that coastal infrastructure including bridges, causeways, tidal turbines, land infilling and harbours, wharfs, quays, piers and docks have ...
Robert J. Lennox, Kim Birnie‐Gauvin, Caitlin Bate, Steven J. Cooke, Tormod Haraldstad, Saron Berhe, Heather D. Penney, Charles W. Bangley, Knut Wiik Vollset, Morgan L. Piczak   +9 more
wiley   +1 more source

Enhanced Stability and Liquefaction Resistance of Earth Dams With a Proposed Method of Geosynthetic Reinforcements

Advances in Civil Engineering, Volume 2025, Issue 1, 2025.
This study evaluates the static and seismic stability of the Narasimharaya Sagar (Gorukallu Balancing Reservoir) earthen dam, located in India’s seismically active Zone II. Using GeoStudio software, seepage, slope stability, and liquefaction analyses were conducted to assess the dam’s performance under static and dynamic conditions.
Chih-Wei Lu, Sufiyan Ahmad, Zaid Mohammad, Wei-Lin Lee, Hsiu-Chen Wen, Yu-Feng Lin, Arnab Biswas   +6 more
wiley   +1 more source

Stress-deformation behavior of a blast-fill dam

Shuili Shuiyun Gongcheng Xuebao, 2020
The stress-deformation behaviour of a blast-fill dam at different stages was examined based on in-situ monitoring data and finite element analysis (FEA).
HUANG Zhihong, YANG Jie, CHENG Lin, SUN Xiaoning, MA Chunhui   +4 more
doaj   +1 more source

Causes of Tensile Strain of Asphalt Concrete Core Wall of Rockfill Dam in High‐Cold Area During Construction

Advances in Civil Engineering, Volume 2025, Issue 1, 2025.
Asphalt concrete core rockfill dams, favored for their superior impermeability and adaptable deformation capacity (effectively accommodating uneven settlement), have been gaining increasing attention in Chinese engineering practice. However, ensuring safety during high‐temperature paving and subsequent cooling remains crucial.
Min Yuan, Lu Zhang, Jianqiao Wan, Yongfeng Qi, Zhiqiang Xie, Wenqiang Xu, Caihong Zhang, Yun Dong, Yi Shan   +8 more
wiley   +1 more source

New Type of Dam for Longitudinal Reinforced Rockfill Dam and Its Operation Safety Analysis

工程科学与技术, 2019
After a long time operation, a conventional earth rockfill dam (e.g. homogeneous dam or core wall dam) may suffer from a lot of dam diseases such as dam-break, overtopping, landslides and leakage. On the basis of a large number of practices of rebuilding
Jun LIANG
doaj  

Back analysis on damage mechanism of concrete face slab of JL CFRD

Yantu gongcheng xuebao
In this study, JL Concrete Faced-Rockfill Dam (CFRD) has a maximum height of 140.3 m and is constructed using granite and quartz porphyry rockfills. During its initial operation, the dam encountered issues such as water-stop damage, slab cracking, and ...
HUANG Wenbin1 , WU Junjie2, MI Zhankuan1, 3 , WEI Kuangmin1, 3, WANG Fang1
doaj   +1 more source

Scale effect of rockfill materials using super-large triaxial tests

Yantu gongcheng xuebao, 2019
A super-large triaxial apparatus and a common large triaxial apparatus are used to conduct triaxial tests on quarried rockfill materials with the maximum particle size dmax of 200 and 60 mm in parallel gradation. The study mainly focuses on the effect of
KONG Xian-jing 1, 2, NING Fan-wei 1, 2, LIU Jing-mao 1, 2, ZOU De-gao 1, 2, ZHOU Chen-guang 1, 2
doaj   +1 more source

Grouted rockfill a material between rockfill and concrete

Geotecnia, 1985
Define-se enrocamento argamassado e compara-se a sua composição, características e processo de execução com outros materiais afins, tais como o simples enrocamento, o betão injectado, o betão cilindrado, o betão ciclópico, o seixo-cimento, o solo-cimento e o macadame.
openaire   +1 more source

Filling standards and gradation optimization of rockfill materials

Yantu gongcheng xuebao, 2018
Based on the fractal theory, a large number of relative density tests, compression tests and triaxial tests on rockfill are carried out. The relationships among gradation, dry density, compressive modulus, failure strength and particle breakage of ...
ZHU Sheng 1,2, ZHONG Chun-xin 1, ZHENG Xi-lei 2, GAO Zhuang-pin 1, ZHAN Zhen-gang 3
doaj   +1 more source

Numerical simulation of size effect on shear strength and deformation behavior of rockfill materials

Yantu gongcheng xuebao, 2018
The scale effect of rockfill materials is crucial to predicting the strength and deformation of earth-rockfill dams. Due to their large particle size and the experimental restrictions, large triaxial tests on full scale samples are seldom conducted.
SHAO Xiao-quan 1,2, CHI Shi-chun 1,2, TAO Yong 3
doaj   +1 more source