首页|伊洛瓦底江河道水位及微型木桩对土质边坡变形和稳定的影响

伊洛瓦底江河道水位及微型木桩对土质边坡变形和稳定的影响

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结合饱和-非饱和渗流和固结理论,构建了伊洛瓦底江干流某土质边坡三维渗流分析模型,研究了不同水位降幅和降速工况下边坡稳定性变化规律,评价了微型木桩对边坡的加固效果.结果表明,河道水位降速越快、汛期水位越高时,水位下降过程中坡面附近的渗透坡降越大,安全系数越低.布设微型木桩群,当木桩群高度为2、4、6 m时,其边坡稳定安全系数相较无加固情况分别提高了 4.50%、9.00%、39.60%,说明微型木桩群的加固效果较好,具有一定推广价值.
Effects of water level in Irrawaddy River and micro wood piles on deformation and stability of soil slopes
Combined with saturated-unsaturated seepage and consolidation theories,a three-dimensional seepage analysis model of a soil slope in the main stream of the Irrawaddy River was established to investigate the change rule of slope stability under different water level reduction magnitude and reduction speed conditions,and to evaluate the reinforcement effect of the micro wood piles on the slope.The results show that the faster the river water level decreases and the higher the water level is during the flood season,the greater the permeation slope drop near the slope surface is during the water level decrease process,and the lower the safety coefficient is.By installing a group of micro wood piles,the slope stability safety coefficient increased by 4.50%,9.00%,and 39.60%,respectively,when the height of the wood pile group was 2,4,and 6 m compared with the case of no reinforcement,indicating that the reinforcement effect of micro wood pile group is good and has some popularization value.

micro wood pileriver water levelseepageslope stabilityIrrawaddy River

徐超群、甘磊、吴志刚、胡继峰、李健、齐建飞、甘元楠、刘源

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河海大学水利水电学院,江苏南京 210098

中国安能集团第二工程局有限公司,江西南昌 330095

微型木桩 河道水位 渗流 边坡稳定 伊洛瓦底江

国家自然科学基金中国安能集团自筹科技项目

52379123823166816

2024

水利水电科技进展
河海大学

水利水电科技进展

CSTPCD北大核心
影响因子:0.866
ISSN:1006-7647
年,卷(期):2024.44(3)
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