For the practical slope design, the angle of adjacent natural slope is often used as reference to design a cutting engineering slope, which is called as engineering analogical method. Based on the method, the profiles of 51 loess limit state slopes with the height of 40-150 m were surveyed in Tianshui area of Gansu, and the height, width and angle of the slopes were measured; the relationship between height and width of slope was double logarithmic linear, and the correlation equation was built; and then, the slope height was divided at intervals of 10 m, and three heights of limit state slopes for each interval were collected to calculate the strength parameters of cohesion and internal friction angle with Morgenstern-Price method. The inversion results showed that synthetically cohesion of loess increased, and internal friction angle decreased with the height of slope increasing, which was in accordance with the relationship between the strength parameters of loess and depth. Based on the inversive strength parameters and the regression equation of the height and width of limit state slope, the relationship curves between the height and width of slope were calculated with different stability coefficients, and the curves were drawn as a chart, which was used to determine the stability coefficient of a known slope and to confirm the angle of designed cutting slope.
[1] 苏永华,赵明华,李志勇,等.基于虚拟试验的边坡失稳概率分析方法[J].中国公路学报,2008,21(6):14-19.
[2] 张旭辉,龚晓南,徐日庆.边坡稳定影响因素敏感性的正交法计算分析[J].中国公路学报,2003,16(1):37-40.
[3] 康亚明,杨明成,胡艳香,等.基于重度增加法的边坡稳定性三维有限元分析[J].建筑科学与工程学报,2006,23(4):49-53.
[4] 徐世强,折学森,刘怡琳,等.公路黄土坝式路堤稳定性计算方法[J].交通运输工程学报,2006,6(3):42-46.
[5] 杨伟,黄俊生,余海生.公路边坡稳定性评价方法及滑坡防治措施[J].筑路机械与施工机械化,2007,24(4):1-4.
[6] 孔纪名,韩培峰,张引.基于地球多传感器网络信息的潜在滑坡判识模型[J].地球科学与环境学报,2013,35(1):97-102.
[7] 罗丽娟,赵法锁,胡江洋,等.基于剩余推力法的黄土高边坡稳定性可靠度分析[J].长安大学学报:自然科学版,2008,28(4):27-31.
[8] 罗丽娟,赵法锁,蔡志勇.基于剩余推力法和复形优化的边坡稳定性分析[J].长安大学学报:自然科学版,2009,29(5):47-53.
[9] 刘海松,倪万魁,颜斌.地质结构模型在公路黄土边坡设计中的作用[J].中国公路学报,2007,20(5):1-6.
[10] 张亚国,张波,李萍,等.基于点估计法的黄土边坡可靠度研究[J].工程地质学报,2011,19(4):615-619.
[11] 李同录,王刘华,张常亮,等.土质边坡空间临界滑动面搜索的优化算法[J].地球科学与环境学报,2011,33(3):300-305.
[12] 高江平,李芳.黄土邓肯张模型有限元计算参数的试验[J].长安大学学报:自然科学版,2006,26(2):10-13.
[13] 雷晓峰,肖曼,张林,等.公路黄土边坡强度参数的选取及应用[J].长安大学学报:自然科学版,2011,31(4):27-33.
[14] SASSA K.Geotechnical Model for the Motion of Landslides[C]∥BONNARD C.Proceeding of the 5th International Sympsium on Landslides.Rotterdam:Balkema,1988:37-56.
[15] HSU K J.Catastrophic Debris Streams (Sturzstroms) Generated by Rockfalls[J].GSA Bulletin,1975,86(1):129-140.
[16] OKUDA S.Features of Debris Deposits of Large SlopeFailures Investigated from Historical Records[R].Kyoto:Kyoto University,1984.
[17] 李萍,张波,李同录.黄土高原边坡特征与破坏规律的分区研究[J].地球科学与环境学报,2012,34(3):89-98.
[18] 李萍,王秉纲,李同录.自然类比法在黄土路堑边坡设计中的应用研究[J].公路交通科技,2009,26(2):1-5.
[19] 李萍,王秉纲,李同录,等.陕西地区黄土路堑高边坡可靠度研究[J].中国公路学报,2009,22(6):18-25.
[20] 谢星,赵法锁,王东红.西安地区Q2黄土非线性流变模型[J].长安大学学报:自然科学版,2009,29(5):41-46.
[21] 雷胜友,李志远,王吉庆,等.含水量对非饱和黄土强度的影响[J].交通运输工程学报,2012,12(1):1-5.
[22] 彭小云,叶万军,折学森,等.黄土沟壑区湿软路基沉降预测模型[J].交通运输工程学报,2007,7(2):70-75.
[23] 谢永利,胡晋川,王文生.黄土公路路堑边坡稳定性状离心模型试验[J].中国公路学报,2009,22(5):1-7.
[24] 王福恒,李家春,田伟平.黄土边坡降雨入渗规律试验[J].长安大学学报:自然科学版,2009,29(4):20-24.
[25] 韩佳明,苏三庆.降雨入渗下渭北地坑黄土窑洞稳定性分析[J].建筑科学与工程学报,2012,29(3):104-110.
[26] 张岳桥,马寅生,杨农,等.西秦岭地区东昆仑—秦岭断裂系晚新生代左旋走滑历史及其向东扩展[J].地球学报,2005,26(1):1-8.
[27] 袁宝印,郭正堂,郝青振,等.天水—秦安一带中新世黄土堆积区沉积-地貌演化[J].第四纪研究,2007,27(2):161-171.
[28] 方小敏,李吉均,朱俊杰,等.甘肃临夏盆地新生代地层绝对年代测定与划分[J].科学通报,1997,42(14):1457-1471.
[29] 李吉均,方小敏,马海洲,等.晚新生代黄河上游地貌演化与青藏高原隆起[J].中国科学:D 辑,1996,26(4):136-146.
[30] 刘小丰,潘保田,高红山,等.天水黄土沉积特征与环境变化[J].中国沙漠,2007,27(3):373-378.
[31] 杨永红,王选仓,韩国杰,等.甘肃黄土地区土基回弹模量[J].长安大学学报:自然科学版,2005,25(3):7-10.
[32] 李萍,黄丽娟,李振江,等.甘肃黄土高边坡可靠度研究[J].岩土力学,2013,34(3):811-817.
[33] 陈春利,邢鲜丽,李萍,等.甘肃黑方台黄土边坡稳定性的可靠度分析[J].工程地质学报,2011,19(4):550-554.
[34] 刘庆雪,刘晓玲,李明,等.某煤矿工业场地黄土高边坡稳定设计分析[J].西安科技大学学报,2012,32(3):314-319.
[35] 郑明新.论滑带土强度特征及强度参数的反算法[J].岩土力学,2003,24(4):528-532.
[36] 王慧婷,臧运民,刘军熙.马钢新区土坡力学参数的反演及边坡稳定性分析[J].岩土工程界,2008,11(6):58-60.
[37] 扈胜霞,周云东,陈正汉.非饱和原状黄土强度特性的试验研究[J].岩土力学,2005,26(4):660-663.
[38] 李保雄,苗天德.黄土抗剪强度的水敏感性特征研究[J].岩石力学与工程学报,2006,25(5):1003-1008.
[39] 王阿丹,王昌业,李萍.西安白鹿塬北缘黄土边坡稳定的可靠度分析[J].地球科学与环境学报,2012,34(1):104-110.
[40] 李萍,赵纪飞,李同录.山西乡宁—吉县地区黄土高边坡可靠度研究[J].地球科学与环境学报,2012,34(2):81-89.
[41] 李文,龙建辉,李同录,等.陕西泾阳南塬黄土滑坡滑带土残余剪切强度特性[J].地球科学与环境学报,2012,34(4):95-101.