Results 21 to 30 of about 1,453 (122)

Strength degradation of soft interlayer under dry-wet cycles based on 3D printing technology [PDF]

open access: yes
Soft interlayers are critical geological formations that significantly impact the stability of slopes in water and hydropower engineering projects. This study investigated the shear mechanical characteristics and failure mechanism of the soft interlayer ...
Hao LIU, Lei LU, Wen ZHANG
core   +1 more source

Study on mechanical properties of coal before and after flooding considering bedding direction [PDF]

open access: yes, 2023
The weak bedding plane and the water-softening coal will lead to the decrease in mechanical properties, which has an important influence on the stability of underground reservoirs and the prevention and control of water inrush accidents in coal mine.
Huijie ZHAO   +4 more
core   +1 more source

China's Eco‐Civilisation, Climate Leviathan, and Hobbesian Energy Transition

open access: yesAntipode, Volume 57, Issue 3, Page 830-861, May 2025.
Abstract Scholars have hitherto tended to theorise China's ecological civilisation project either as a form of environmental authoritarianism or as a vision of eco‐socialism. This paper contributes to the conversation by conducting a textual analysis of Chinese scholarly discussions on eco‐civilisation.
David Chen
wiley   +1 more source

干湿循环下花岗岩残积土抗剪强度及边坡稳定性分析 [PDF]

open access: yes, 2019
为研究干湿循环对花岗岩残积土抗剪强度特性和抗剪强度参数的影响,分析花岗岩残积土边坡的稳定性,改进了常规的单元试验方法.以整个花岗岩残积土边坡为试验对象进行干湿循环模拟,在每次循环后直接在边坡坡面上切取花岗岩残积土试样进行直剪试验.在此基础上,利用有限元软件ABAQUS对一实际边坡进行了干湿循环的数值模拟,在每次循环模拟前对上一次模拟结果进行分析,将等效塑性应变较大区域的土体强度进行适当折减,分析每次循环后花岗岩残积土边坡的应力应变、稳定性以及塑性变形.试验结果表明:花岗岩残积土的抗剪强度随干湿循环次数 ...
于佳静, 张波, 王晖, 陈东霞
core  

Experimental study on optimizing ratio of EICP solution to reinforce red mudstone filler based on response surface method [PDF]

open access: yes
In order to explore the effects and mechanisms of the urease-induced calcium carbonate precipitation (EICP) technology on the solidification of red mudstone fillers, urease is extracted from soybean, and the ratio of EICP solution is optimized by the ...
YU Yunyan, GUO Qiuyue, CUI Wenhao, DING Xiaogang, DU Qianzhong, QI Guobin
core   +1 more source

Effects of drying-wetting cycle caused by rainfall on soil respiration: Progress and prospect [PDF]

open access: yes, 2018
Soil respiration is an important part of the carbon cycle in terrestrial ecosystems. The changes of soil respiration caused by rainfall directly affect global carbon balance.
朱连奇   +3 more
core   +1 more source

Mechanical Properties of Gangue-steel Slag-ore Powder Mixture [PDF]

open access: yes
In order to explore the mechanical properties of the coal gangue-steel slag-ore powder mixture without alkali initiator, the solid waste materials coal gangue, steel slag and mineral powder produced in Handan Area were taken as the research objects, and ...
Hanlong CUI   +4 more
core   +1 more source

Progress of the special-subjects study on the construction of comprehensive geological disaster prevention and control system in Yunnan Province [PDF]

open access: yes, 2023
The establishment of the comprehensive geological disaster prevention and control system in Yunnan province stands as China’s most extensive and grand-scale endeavor in safeguarding the prevention and control of geological disasters in China.
Cheng HUANG   +8 more
core   +1 more source

Study on the Corrosion and Protection of the Coated Steel Rebar in Concrete [PDF]

open access: yes, 2007
钢筋的腐蚀破坏是导致混凝土结构过早失效的首要因素,造成了巨大的经济损失。尽管已发展了多种涂层技术用于混凝土中钢筋的腐蚀防护,但其保护效果和保护机理仍然有争议。研究混凝土中钢筋的腐蚀与防护机理,探索先进、高效的钢筋混凝土保护方法成为一项重大而紧迫的任务。进一步发展用于表面有涂覆层的钢筋在混凝土中腐蚀防护行为的无损检测技术,评价钢筋混凝土结构的安全性和耐久性显得尤为重要。本论文主要针对表面有涂覆层的钢筋在混凝土中的腐蚀行为与防护效果,涂覆层机械损伤对其保护作用的影响 ...
赵冰
core  

Evolution law of mechanical properties of red mudstone fill material under long-term relative humidity cycles [PDF]

open access: yes
Red mudstone fill material (RMF) is highly sensitive to water content. Evolution on mechanical properties of RMF subgrade during long-term relative humidity cycles would be induced by the change of seasons.
CHEN Kang1, 2 , LIU Xianfeng1, 2 , JIANG Guanlu1, 2, YUAN Shengyang1, 2, MA Jie1, 2, CHEN Yihan1, 2
core   +1 more source

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