Results 31 to 40 of about 19,955 (232)

Creep behavior of rockfill with soft rock under different relative densities

Yantu gongcheng xuebao, 2020
When soft rock is used as the dam embankment materials for high earth-rock dams, large creep deformation may occur, which is very unfavorable to the long-term stability of high earth-rock dams.
CHEN Xiu-ji 1, CHEN Qun 1, ZHOU Cheng-jing 2, LI Jian-guo 3
doaj   +1 more source

Interactions between maternal provisioning and natural selection on seed mass fluctuate across heat waves

American Journal of Botany, EarlyView.
Abstract Premise Changing climates are leading to more frequent and severe heat waves, potentially threatening plant populations. Both acclimation to stress and selection for heat‐escape or heat‐resistance phenotypes occur during heat waves. However, plastic responses and selection do not necessarily interact cohesively—even producing trait responses ...
Lana F. Gaspard, Elissa Harb, Stacy D. Holt Jr., Courtney M. Patterson, Nicholas J. Kooyers   +4 more
wiley   +1 more source

Intelligent Monitoring System for Roller-Compacted Earth-Rock Dam Construction Process

Journal of Physics: Conference Series
The conventional quality control method of earth-rock dam is insufficient to meet the requirements of intelligent and fine management of dam filling construction in the new stage.
Biao Liu, Feng Gao, Baoming Tian, Xiaohui Gong, Haotian Zhu, Yufei Zhao   +5 more
semanticscholar   +1 more source

Poseidon's Sanctuary at Samikon—The Discovery of an Ancient Temple Through an Integrated Geophysical and Geoarchaeological Survey Approach for Lagoonal and Swampy Environments

Archaeological Prospection, EarlyView.
ABSTRACT Below the classical fortress of Samikon at the coast of the western Peloponnese, ancient writer Strabo mentioned a sanctuary of Poseidon which served as the centre of the religious association of the Triphylian cities. In this paper, we describe the discovery and investigation of a building structure by means of geophysical and ...
Dennis Wilken, Birgitta Eder, Sarah Bäumler, Elena Appel, Peter Fischer, Tina Georg, Federica Iannone, Lena Slabon, Timo Willershäuser, Erofili‐Iris Kolia, Andreas Vött   +10 more
wiley   +1 more source

Optimizing Strategies for Non‐Invasive Prospection of Settlements in the Intertidal Zone: A Case Study From the Centre of the Drowned Medieval Village of Tolsende (Scheldt Estuary, the Netherlands)

Archaeological Prospection, EarlyView.
ABSTRACT Medieval and early modern drowned villages in the intertidal zone of the Scheldt estuary (the Netherlands) constitute intriguing yet largely understudied components of north‐western Europe's underwater cultural heritage. Despite their high archaeological potential as time capsules of past settlement landscapes, research has remained limited ...
Jan Trachet, Sarah Bäumler, Stefan Krojer, Jeroen Verhegge, Wim De Clercq, Philippe De Smedt, Wouter H. Maes, Bente S. Majchczack, Immo Trinks, Dennis Wilken   +9 more
wiley   +1 more source

Broad Skills, Smaller Footprints? Generalist CEOs and Firm Biodiversity Exposure

Business Strategy and the Environment, EarlyView.
ABSTRACT We examine whether CEO generalist skills predict firm‐level biodiversity risk exposure, an emerging strategic and financial concern. Using the biodiversity indicator developed based on textual analysis and the General Ability Index, we find that firms led by generalist CEOs are associated with significantly lower disclosed biodiversity risk ...
Hafiz Hoque, Saadia Irfan, Linh Thi Tue Tran   +2 more
wiley   +1 more source

Experiment study on shear-seepage coupling of clayey soil-structure interface considering contact deformation

Yantu gongcheng xuebao, 2022
Aiming at the shear-seepage problem on the interface between the contact clayey soil and the concrete base at the bank slope of a high clay-core dam, a new complete set of shear-seepage test system for clayey soil-structure interface is developed to ...
TAN Jia-cheng 1, SHEN Zhen-zhong 1, 2, ZHANG Hong-wei 1, XU Li-qun 1, LI Guo-hui 1
doaj   +1 more source

Study on safety evaluation model of small and medium-sized earth-rock dam based on BP - AdaBoost algorithm

IOP Conference Series: Materials Science and Engineering, 2019
The security characteristics of the small and medium-sized earth-rock dam was analysed, the dominant factors which were significant and high contribution on dam safety evaluation were selected by Delphi method combined with grey relational analysis, then
Haoping Li, J. Ouyang, Feng Li, Xueyu Xie   +3 more
semanticscholar   +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

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