玛尔挡改线公路高边坡稳定性分析及生态治理
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摘要
通过对玛尔挡改线公路高边坡工程地质及水文地质条件调绘探查、岩层节理裂隙统计,采用赤平极射投影法对边坡进行稳定性分析。分析结果显示,高边坡整体处于稳定状态,但如果不采取防护措施,边坡岩土层经过长期的风化剥蚀,边坡局部会逐渐趋于欠稳定状态。根据该地区气候、环境及以往经验,提出采用锚拉式混凝土挡墙结合柔性防护网的生态防护措施对边坡进行防护,实施效果良好。
Based on the survey of engineering geology and hydrogeological conditions, statistics of joints and fissures of Maerdang highway slope, the stability analysis of rock slope stability is carried out by the method of hemispherical projection method. The results show that the whole slope is stable. But if no protective measures are taken, after a long period of weathering and erosion of rock and soil, the slope will gradually be in less stable state. According to the climatic environment and the past experiences, this paper puts forward the ecological protective measures of slope protection with anchor pull type concrete retaining wall combined with flexible protective net, and the implementation effect is good.
Based on the survey of engineering geology and hydrogeological conditions, statistics of joints and fissures of Maerdang highway slope, the stability analysis of rock slope stability is carried out by the method of hemispherical projection method. The results show that the whole slope is stable. But if no protective measures are taken, after a long period of weathering and erosion of rock and soil, the slope will gradually be in less stable state. According to the climatic environment and the past experiences, this paper puts forward the ecological protective measures of slope protection with anchor pull type concrete retaining wall combined with flexible protective net, and the implementation effect is good.
引文
[1]程江涛,晏鄂川,尹锡杰,等.基于赤平投影的岩质边坡稳定性分析及其程序化实现[C]//第六届全国地面岩石工程学术会议暨第二届岩土力学与工程前沿论坛论文集,2007.
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[6]赵志明,吴光,王喜华.工程边坡绿色防护机制研究[J].岩土力学与工程学报,2006,25(2):299–305.ZHAO Zhiming,WU Guang,WANG Xihua.Research on greening protection mechanism for engineering slope[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(2):299–305.
[7]刘成清,陈林雅.被动柔性防护网在边坡防护中的工程应用与研究[J].公路,2015,22(6):44–50.LIU Chengqing,CHEN Linya.Application and study of passive flexible protective net in slope protection[J].Highway,2015,22(6):44–50.
[8]马惠民,吴红刚.山区高速公路高边坡病害防治实践[J].铁道工程学报,2011,28(7):34–41.MA Huimin,WU Honggang.Practices on high slope disease control of highways in mountainous area[J].Journal of Railway Engineering Society,2011,28(7):34–41.
[9]何建军.岩质边坡生态防护技术研究[D].长沙:中南大学,2005.
[2]祁生文,伍法权,严福章,等.岩质边坡动力反应分析[M].北京:科学出版社,2007.
[3]谷飞宏,王亮清,刘庆涛,等.赤平投影法确定边坡稳定性系数[J].华北水利水电学院学报,2011,32(4):119–121.GU Feihong,WANG Liangqing,LIU Qingtao,et al.Determination of slope stability coefficient by hemispherical projection method[J].Journal of North China Institute of Water Conservancy and Hydroelectric Power,2011,32(4):119–121.
[4]姜彤,杜国倩,李海华.赤平投影在某边坡稳定分析中的应用[J].华北水利水电大学学报(自然科学版),2011,32(6):110–112.JIANG Tong,DU Guoqian,LI Haihua.Application of the stereographic projection in a rock slope stability analysis[J].Journal of North China Institute of Water Conservancy and Hydroelectric Power,2011,32(6):110–112.
[5]张俊云,周德培.红层泥岩边坡生态防护机制研究[J].岩土力学与工程学报,2006,25(2):250–256.ZHANG Junyun,ZHOU Depei.Study on ecological protection mechanism of red bed mudstone slope[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(2):250–256.
[6]赵志明,吴光,王喜华.工程边坡绿色防护机制研究[J].岩土力学与工程学报,2006,25(2):299–305.ZHAO Zhiming,WU Guang,WANG Xihua.Research on greening protection mechanism for engineering slope[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(2):299–305.
[7]刘成清,陈林雅.被动柔性防护网在边坡防护中的工程应用与研究[J].公路,2015,22(6):44–50.LIU Chengqing,CHEN Linya.Application and study of passive flexible protective net in slope protection[J].Highway,2015,22(6):44–50.
[8]马惠民,吴红刚.山区高速公路高边坡病害防治实践[J].铁道工程学报,2011,28(7):34–41.MA Huimin,WU Honggang.Practices on high slope disease control of highways in mountainous area[J].Journal of Railway Engineering Society,2011,28(7):34–41.
[9]何建军.岩质边坡生态防护技术研究[D].长沙:中南大学,2005.