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当前位置: 首页 > 文章 > 青藏铁路K1533路基风蚀防治措施效益研究 水土保持学报 2007,21 (5) 68-71
Position: Home > Articles > Studies on Efficiency of Wind Erosion Controlling Measures at K1533 of Qinghai-Tibet Railway Journal of Soil and Water Conservation 2007,21 (5) 68-71

青藏铁路K1533路基风蚀防治措施效益研究

作  者：
刘世海;冯玲正;许兆义
单  位：
青海省水利水电科学研究所;北京交通大学土建学院
关键词：
青藏铁路;风蚀防治措施;高立式沙障;石方格沙障
摘  要：
对青藏铁路K1533处高立式沙障和石方格沙障防风固沙的效益进行了研究,结果表明:高立式沙障可有效地降低防护区的风速,风速降幅范围在第1沙障后为14.63%~86.15%,第2沙障后为41.93%~97.91%,第3沙障后为22.80%~87.40%;同时降低了防护区的侵蚀量,高立式沙障后的侵蚀量和对照区相比,第1沙障后的侵蚀量仅占对照区的21.75%,第2,3沙障后的侵蚀量和对照区相比,其值缩小了数十倍到数百倍。石方格区的侵蚀量减幅更大,和对照区相比,相同高度的侵蚀量缩小了数十倍到数百倍甚至数千倍。高立式沙障、石方格沙障措施相结合使用,对于防治风蚀具有十分显著的作用,对保护风沙区铁路工程免遭风沙危害具有非常重要的作用。
译  名：
Studies on Efficiency of Wind Erosion Controlling Measures at K1533 of Qinghai-Tibet Railway
作  者：
LIU Shi-hai1,FENG Ling-zheng2,XU Zhao-yi1(1.School of Civil Engineering and Architecture,Beijing Jiaotong University, Beijing 100044;2.Institute of Water Resources and Hydropower Research of Qinghai Province,Xining 810001)
关键词：
Qinghai-Tibet railway;wind erosion controlling measure;upright sand fence;stone checkerboard sand barrier
摘  要：
Based on the study of wind controlling measures efficiency at the K1533 of Qinghai-Tibet railway,the results show that the upright sand fence decreased the wind velocity in the protection area,behind the first piece upright sand fence,it reduced wind velocity by rate 14.63%~86.15% as compared to the control,41.93%~97.91 % behind second piece,and 22.80%~87.40 % behind third piece,respectively.The wind erosion modulus decreased greatly behind the upright sand fence,after the first piece of upright sand fence,the wind erosion modulus just occupying about 21.75% of the control wind erosion modulus.Wind erosion rate behind second and third piece upright sand fence,it reduced range from several ten fold to hundred fold as compared to the control.The same trends appears in the stone checkerboard sand barrier protection area,wind erosion modulus reduced range from several ten fold to hundred fold,even to thousand fold as compared to the control in the same monitoring height.Upright sand fence and stone checkerboard sand-barrier have the greatly effect on the wind erosion control of the railway,their protected that the railway suffered from the wind erosion hazards.

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