Results 1 to 10 of about 1,499 (122)

Comparative Analysis on Engineering Performance of Stabilized Soil with Curing Agent and Glutinous Rice Slurry [PDF]

open access: yes, 2022
[Objective] The a curing test of industrial waste iron tailings sand and loess mixed soil by adding an ionic curing agent or a glutinous rice slurry was conducted, and the curing effects of the two curing agents on the target soil sample were compared in
Chang Yu   +4 more
core   +1 more source

Effects on Atmospheric Influence Depth for an Anchored Vegetation Reinforcement System to Protect Newly Excavated Expansive Soil Slopes [PDF]

open access: yes, 2022
[Objective] The data that could provide a reference basis for the application of an anchor-reinforced vegetation system (ARVS) were obtained to protect newly excavated slopes with expansive soil.
Chen Junting, Tang Linqiang, Xu Yingzi
core   +1 more source

Mechanistic analysis of loess landslide reactivation in northern Shaanxi based on coupled numerical modeling of hydrological processes and stress strain evolution: A case study of the Erzhuangkelandslide in Yan’an [PDF]

open access: yes, 2023
The Erzhuangke landslide is a typical landslide affected by the rainy season. Rainfall changes the seepage pattern with the pre-existing landslide, weakening matric suction and soil shear strength, leading to the formation of tension cracks internally ...
Hui LIU   +5 more
core   +1 more source

Fractal characteristics of fiber lithium slag concrete cracks under sulfate attack [PDF]

open access: yes, 2022
Natural corrosion of concrete structure due to sulfate poses a serious threat to people's lives and property. Therefore, it is of great practical significance to study the phenomenon of sulfate corrosion on concrete.
Guang-tai ZHANG   +3 more
core   +1 more source

Ultrasonic velocity and acoustic emission properties of concrete eroded by sulfate and its damage mechanism [PDF]

open access: yes, 2016
Simulation experiment was performed on the performance of concrete exposed to sulfate attack and dry-wet cycles. Changes in ultrasonic velocity and acoustic emission activities for concrete at different erosion periods were tested by uniaxial compression
JI Hong-guang   +3 more
core   +1 more source

干湿循环下崩岗土体裂隙发育对其渗透性能的影响

open access: yesShuitu Baochi Xuebao, 2021
渗透是崩壁降雨重分布的关键且直接影响其重力侵蚀过程。试验设计6次干湿循环,通过进行崩壁4层土壤的饱和渗透试验并结合数字图像处理技术,研究了干湿循环效应下崩壁4层土的裂隙演化规律及其对各层土饱和渗透性能的影响。结果表明:(1)随干湿循环次数的增加,表土层和红土层裂隙发育明显,裂隙率逐渐增加后趋于稳定,过渡层和砂土层几乎没有产生裂隙;表土层在第3次循环后裂隙几乎发育完全,裂隙率达到3.50%,形态纤细且破碎,而红土层在第1次循环后裂隙骨架基本定型,随着干湿循环的进行,裂隙宽度不断增大至一定程度时不再发生变化;
王佳妮, 马戌, 张晓明
doaj  

干湿效应下崩岗土体的裂隙演化及收缩变形规律

open access: yesShuitu Baochi Xuebao, 2022
为提高崩岗土体稳定性,抑制崩壁崩塌。试验共设计6次干湿循环,利用工业相机对脱湿过程中崩岗4层土进行定时定点拍照并结合数字图像处理技术,研究干湿效应下崩岗土体的裂隙演化及收缩变形规律。结果表明:(1)脱湿过程中土体形态变化顺序为轴向收缩、径向收缩和裂隙发育;(2)表面裂隙率与 液限、塑性指数、黏粒含量呈显著正相关关系,4层土中表面裂隙率最大值为过渡层18.78%,最小值为砂土层5.41%,崩岗土体剖面上两者为相邻土层,较大差异性会严重破坏崩岗的稳定性;(3)随干湿循环的进行,径向收缩不再发生,轴向收缩 ...
王佳妮   +5 more
doaj  

Energy storage via storing flood in abandoned mines and low temperature heat energy utilization from mine water [PDF]

open access: yes, 2023
The utilization of underground space in abandoned mines is a key direction supported by the coal industry. By combining underground space utilization, flood storage, and heat supply in winter, this paper proposes a comprehensive utilization model of ...
Hongwei ZHANG   +3 more
core   +1 more source

圈养野生动物发酵床构建及技术应用——以山魈为例

open access: yes野生动物学报, 2021
以上海动物园圈养的山魈(Mandrillus sphinx)为例,利用绿化修剪的树干等制作发酵床垫料,构建动物展区发酵床模型。通过比较普通饲养环境与发酵床饲养环境中山魈健康状况和笼舍的温湿度、有毒有害气体、日劳动量、能源消耗等,探讨发酵床技术在野生动物饲养管理中的构建及其应用模式。研究发现:生活在有发酵床与无发酵床笼舍的山魈的血常规、血清等健康指标无显著差异。发酵床技术的应用可以代替传统取暖方式为笼舍供暖,同时也大大节省了饲养员劳动量和笼舍耗水量。该技术是将树枝、树干等绿化垃圾作为发酵床垫料 ...
耿广耀朱迎娣王爱善
doaj  

Research on the time-dependent stability of filling paste under the action of different concentrations of chloride salts [PDF]

open access: yes
In order to study the time-dependent characteristics of filling paste under the action of mine water, chloride salt solutions with mass fraction of 0%, 5%, 10%, and 15% were prepared, and chloride salt dry wet cycle tests with erosion cycles of 4, 8, 12,
Shuaiqian LI, Zhaowen DU, Zhuoyue WEN
core   +1 more source

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