摘要
以新建汉巴南高速铁路玉龙山隧道弃渣场为工程背景,利用GeoStudio软件中的Slope/W模型,对拟建玉龙山隧道弃渣场的典型断面Ⅱ-Ⅱ段在各工况下进行弃渣场边坡稳定性估算,发现了边坡安全系数随降水过程的变化规律,同时还通过传递系数法测算了断面的整体稳定性系数。在天然或暴雨工况下,不论是沿弃渣体内部最不利位置处滑移的局部稳定性,还是沿弃渣场基础接触底面滑移的整体稳定性,其稳定系数都符合规范中的控制标准。因此弃渣场出现失稳破坏的可能性相对较小,并具备相应的安全储备。
Taking the newly built Yulongshan Tunnel spoil field of the Hanbannan high-speed railway as the engineering background,using the Slope/W model in GeoStudio software,the typical sectionⅡ-Ⅱsection of the proposed Yulongshan Tunnel spoil field is discarded under various working conditions.The slope stability of the slag yard is estimated,and the variation law of the slope safety factor with the precipitation process is found.At the same time,the overall stability factor of the section is calculated by the transfer coefficient method.Under natural or heavy rain conditions,whether it is the local stability of sliding along the most unfavorable position inside the spoil body,or the overall stability of sliding along the contact bottom surface of the foundation of the spoil field,the stability coefficients are all in line with the control in the specification standard.Therefore,the possibility of instability and damage in the spoil field is relatively small,and there are corresponding safety reserves.
作者
孙天煜
Sun Tianyu(China Railway Fifth Survey and Design Institute Group Co.,Ltd.,Beijing 102600,China)
出处
《山西建筑》
2023年第3期171-173,共3页
Shanxi Architecture
