土石混合邊坡塊石隨機(jī)生成方法與穩(wěn)定性分析
[Abstract]:The traditional method of slope stability analysis does not take into account the shortage of rock block inside the soil and rock mixed slope. The corresponding program of MATLAB is used to generate certain gradation random block rock data, and then the data file is transformed into a graphic interactive file through AutoCAD. The corresponding grid model of rock slope is established by introducing Midas. Finally, through Midas_to_Flac3d interface program, the Flac3d model is generated, and the stability analysis of block rock slope is carried out by using the finite difference strength reduction method embedded in Flac3d, and the influence of key parameters such as soil-rock interface strength on the stability of soil-rock mixed slope is discussed. The calculation results show that ignoring the existence of massive rock will cause great difference in the calculation results of slope stability, and the plastic zone in the slope is not the regular circular arc like the homogeneous soil slope. However, under the comprehensive action of various extension paths of plastic zones, there is a phenomenon of multiple slip zones. The slip zone has obvious rock wrapping effect in the process of transfixion, and the length of the slip zone is obviously longer than that of the equivalent homogeneous soil slope. In the range of selected contact surface parameters, the influence of contact surface stiffness parameters (normal stiffness, tangential stiffness) on slope safety factor is small, while contact surface strength parameters (friction angle, cohesion force) have significant influence on slope safety factor.
【作者單位】: 中南大學(xué)土木工程學(xué)院;
【基金】:國家自然科學(xué)基金資助項目(51208522) 貴州省交通運輸廳科技項目(2012122033,2014122006)~~
【分類號】:U416.14
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 吳正寧;;邊坡的防治[J];江西建材;2011年04期
2 崔凌秋,李勁松;延圖高速公路K324+720-K324+810段邊坡破裂特征分析[J];東北公路;2001年04期
3 于海;侯曉斌;;分析公路邊坡常見問題及對策[J];中國新技術(shù)新產(chǎn)品;2011年03期
4 薛新峰;;公路黃土高邊坡動力穩(wěn)定性分析[J];中國水運(下半月);2014年03期
5 陳國俊;王浩;泮俊;趙耀;陳秀暉;;大型土坡寬平臺優(yōu)化設(shè)計研究[J];鐵道建筑;2014年01期
6 彭慧;龔臣;;山區(qū)公路邊坡地質(zhì)災(zāi)害類型快速識別方法研究[J];城市道橋與防洪;2010年03期
7 鄧宗偉;冷伍明;李志勇;岳志平;;噴混凝土邊坡溫度場與應(yīng)力場耦合的有限元時效分析[J];巖土力學(xué);2009年04期
8 趙超;樊敬亮;孟娟;;貴州北盤江大橋高邊坡特征及其工程效應(yīng)研究[J];地質(zhì)學(xué)刊;2009年03期
9 楊育;阮建軍;;高邊坡病害處治[J];中國公路;2003年12期
10 胡志毅;賀健;;宜春鉭鈮礦公路邊坡滑坡分析及綜合治理[J];金屬礦山;2007年11期
相關(guān)會議論文 前2條
1 陳莉;田濤;紀(jì)春源;;噴射厚層種植基材綠化技術(shù)的應(yīng)用——以勉寧高速公路高邊坡為例[A];第八次全國巖石力學(xué)與工程學(xué)術(shù)大會論文集[C];2004年
2 王洪輝;庹先國;張貴宇;張兆義;鐘佳迅;蒲建華;;山區(qū)高速公路施工期邊坡失穩(wěn)災(zāi)害監(jiān)測預(yù)警技術(shù)及應(yīng)用研究[A];中國地球物理學(xué)會第二十七屆年會論文集[C];2011年
相關(guān)重要報紙文章 前1條
1 杜立洪 溫泉公路段;對公路邊坡穩(wěn)定與防護(hù)的一些淺見[N];博爾塔拉報;2008年
,本文編號:2177431
本文鏈接:http://sikaile.net/kejilunwen/daoluqiaoliang/2177431.html