Results 31 to 40 of about 1,083 (153)
Open-pit mine soft rock slope internal row tracking pressure side control engineering：A case study at the south side of the first mining area of Hesigewula south open-pit coal mine [PDF]
Slope stability control is crucial for safe and efficient coal mining in open-pit mines with soft rock. To address the challenge of stabilizing dip soft rock slope rock slopes, the treatment engineering of inner row tracking pressure side of dip soft ...
Dong WANG +6 more
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Application of multiple InSAR techniques and SAR data from multi-sources to landslide deformation monitoring: A case study of the Zhixincun landslide in Jilin Province [PDF]
In order to realize effective monitoring of Zhixincun landslide, this paper selected 27 sentinel-1A data in 2017, and conducted deformation monitoring of Zhixincun landslide based on small baseline radar interferometry technology (SBAS-InSAR), and ...
Haiming YU +5 more
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Dizhen xuebao, 2020 本文采用隐式动力有限单元法研究了不同的边坡角度和边坡高度对地形放大效应的影响，并以位移峰值放大系数为衡量地震动放大效应的标准，计算了不同边坡角度和边坡高度条件下的地震响应，在此基础上对模型关键监测点的输出波形以及位移峰值放大系数的变化趋势进行了分析，获得了不同监测点处的地震动时程曲线，揭示了坡角和坡高对单体边坡地震动放大效应的定量作用规律。数值结果表明，相同高度处坡面监测点的水平向位移峰值放大系数大于坡内监测点的，地形放大效应在水平方向具有趋表效应。由于坡面存在入射波和反射波的叠加 ...
Peng Deng
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Shuitu Baochi Xuebao, 2022 退耕还林(草)工程的深入实施有效遏制了黄土高原水土流失,但以浅层滑坡和崩塌为主的重力侵蚀在黄土高原广泛分布,且已成为小流域侵蚀泥沙主要来源之一。为探究黄土丘陵沟壑区浅层滑坡和崩塌的形态特征和发育临界地形,在陕西省安塞区纸坊沟小流域调查了53处浅层滑坡和40处崩塌,记录其植被特征,同时进行无人机摄影测量。结果表明:浅层滑坡的规模通常大于崩塌,且形态变化范围更大;浅层滑坡长度、宽度、周长和面积与沟壑密度呈显著负相关(P120.0%)、地形湿度指数和径流流路长度较小(
邢书昆 +3 more
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Shuitu Baochi Xuebao, 1995 伴随着黄土坡面上的产流产沙过程，黄土坡面形态亦在经历一个迅速变化的过程。该文主要研究坡面平面形态及其剖面形态的变化与侵蚀类型及微地貌形态的关系。对于 具有特殊意义的平衡状态下的坡面侵蚀机理之探讨，该文结合前文听阁类过程对面蚀与沟蚀机理分别进行了研究，从而初步提示了黄土坡面侵蚀过程中坡面形态变化的机理。
徐为群 金德生
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Characteristics and causes analysis of Nandianzi landslide in Lingtai County, Gansu Province [PDF]
, 2023 On October 3, 2021, a large landslide occurred at the loess-mudstone interface in Nandianzi, Lingtai, its successful early warning measures preventing casualties.
Chaodong WAN +7 more
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Near-natural ecological restoration in open-pit mine area [PDF]
Ecological restoration in open-pit mining areas faces some problems such as low self-sustaining capacity and high maintenance costs, especially obvious mining traces after restoration.
Jianan XIA +3 more
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Shuitu Baochi Xuebao, 2005 退耕还林还草是目前黄土高原整治生态环境和控制水土流失的主体政策。为使生态退耕政策得到有效落实,本文基于WIN-YIELD软件,以延安燕沟流域为例,利用19972002年延安站的逐日气象数据和燕沟流域地貌、土壤及土地利用等资料,模拟分析了不同地形高程、坡度和坡向条件下坡耕地种植不同作物可能产生的水土流失量及其地形分异特征。结果表明:地形坡度是影响径流和泥沙产生的重要因素,产生径流和泥沙的模拟值随地形坡度的增大而增大,地形坡度15°是坡耕地土壤侵蚀模数的相对质变点;地形高程和坡向对产生径流和泥沙的影响不大。
徐勇 田均良 刘普灵 徐学选
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Shuitu Baochi Xuebao, 2022 探究黄土高原坡耕地土壤物理结皮对坡面产流产沙的影响和作用机理, 为黄土高原坡耕地水土流失防治提供科学依据。通过室内人工模拟降雨试验, 研究坡耕地沉积结皮和翻耕以后形成的击溅结皮对坡面产流产沙过程的影响。根据研究区坡耕地结皮形成的特点, 试验共设计5个处理, 分别为裸地、沉积结皮、沉积结皮破坏、翻耕和翻耕击溅结皮, 每个处理对应2个重复, 以安塞黄绵土25°坡面为例, 设置雨强为120 mm/h, 降雨历时为1 h。结果表明: (1)坡耕地沉积结皮促进坡面产流、抑制坡面产沙, 打破结皮后 ...
马金龙 +4 more
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Failure mechanism and controlling measures of cut slope instability at Shouling temple, Luhuo County, Sichuan Province [PDF]
The Shouling temple in Luhuo County, Sichuan faces an urgent situation due to the construction of the Future Hall. A five-level excavation slope with a height of 21.8 m and a slope angle of 55° to 75° was formed on the northwest side of the site, leading
Gang LUO, Heming REN, Xingzheng WANG
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