共查询到19条相似文献,搜索用时 156 毫秒
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通过对高速公路边坡水土保持的研究,主要论述边坡水土保持植物防护设计的应用,从高速公路水路流失的特点出发,指出边坡为公路水土流失重灾区。进行植物防护设计不仅能够达到防护效果,还有利于恢复植被,改善生态环境,有效地防止水土流失,并介绍了高速公路边坡水土流失植物防护技术设计原则。最后通过实践分析,对植物防护做出具体设计,为今后同类工程的水土保持措施布局提供参考和借鉴。 相似文献
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高速公路路基边坡稳定性与交通安全有着直接关联,为做好高速公路路基边坡防护与支护施工,对高速公路路基边坡滑塌形式及原因、防护及支护施工、施工质量控制等进行探讨,并结合实际工程实践进行分析,以期为高速公路路基边坡防护及支护施工提供参考。 相似文献
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厚层基材植被护坡是一种值得推广的高速公路上边坡防护绿化形式。文章结合浙江省诸永高速公路挖方路堑边坡防护绿化工程,介绍了厚层基材植被护坡施工方法,为高速公路边坡防护提供参考。 相似文献
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Runoff and water erosion on road side-slopes: Effects of rainfall characteristics and slope length 总被引:2,自引:0,他引:2
Xian-Li Xu Wen Liu Ya-Ping Kong Ke-Li Zhang Bofu Yu Ji-Ding Chen 《Transportation Research Part D: Transport and Environment》2009,14(7):497-501
To investigate the effects of rainfall and slope length on water erosion on road side-slopes, runoff and soil loss are measured from natural runoff plots along the Qinghai-Tibet highway near Tuotuo River. Rainfall erosivity used in the revised universal soil loss equation is a good predictor for runoff and soil loss from road side-slopes. Runoff depth, sediment concentration and soil loss decreases as slope length increases. 相似文献
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在今后的数十年里,在复杂地形条件下修建公路的情况会越来越多,高填深挖、开山通路是难以避免的;同时工程建设所面对的气候、地质状况也更加复杂,工程建设对环境的影响越来越大,而环境的反作用也越来越明显。工程建设破坏沿线生态系统、植物覆盖层消失、边坡裸露在大气环境中,不仅可引起水土流失,还能引发滑坡、泥石流等地质灾害,危及行车安全。采用植被固坡可以弥补传统工程措施的不足,在实现固土护坡的同时,还能恢复生态环境。本文针对公路边坡的植被防护技术展开研究,介绍植被防护技术理念、技术的发展,提出植被防护的基本原则,并结合工程提出边坡植被防护设计具体方案。 相似文献
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文章首先对高速公路边坡生态防护中常见质量问题的探讨,指出植物生长基层滑塌、坡面冲蚀等常见质量问题,并对其补救措施进行简要分析,重点研究高速公路边坡生态防护施工工艺与质量控制,通过直接喷播植草绿化与CF网绿化两种防护方式从深入分析,以确保高速公路边坡生态防护质量。 相似文献
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文章针对公路建设项目的水土流失特点,从监测时段、范围、内容、测点布置、工作流程及方法、制度、实施保障等方面入手,对公路水土保持监测技术进行了详细介绍。 相似文献
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Runoff and soil erosion from highway construction spoil deposits: A rainfall simulation study 总被引:3,自引:0,他引:3
Jianzhi DongKeli Zhang Zhongling Guo 《Transportation Research Part D: Transport and Environment》2012,17(1):8-14
To measure soil loss from these road construction spoils, 30 rainfall simulations involving five rainfall intensities were conducted to study runoff and soil erosion processes on a road in China. Twenty-five of the rainfall simulations were carried out on loose materials five different slopes. Another five rainfall simulations were conducted on compacted road materials with a slope of 30.6%. The results show that soil bulk density has a positive effect on runoff rate, and the effect of slope on runoff rate changes with rainfall intensity. Higher soil bulk density increases soil loss under low rainfall intensity, but decreases soil loss when rainfall intensity is high. Soil loss is positively related to slope, but the relationship differs from that in prior studied of croplands and disturbed lands. Equations for predicting soil erosion from loose materials and compacted road are developed. 相似文献