土钉加固高液限土路堑边坡的支护参数优化
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摘要
土钉支护已广泛应用于边坡工程,但至今对土钉支护参数的选取尚无规范可依。基于有限差分法软件FLAC,利用正交试验设计进行数值模拟,得到一定坡高土钉支护参数的合理取值范围,并选取典型工点对土钉的支护效果进行稳定性评价,对比处治前后边坡的安全系数及最大水平位移,结果表明,在正交试验基础上选取合理的土钉支护参数,边坡的稳定性大大提高。计算结果可为土钉支护定量化设计提供参考。
Soil nailing has been widely used in slope engineering,but so far there are no norms that the soil nailing parameter selection can conform to.Based on the finite difference method FLAC software,orthogonal design for numerical simulation is used to get a reasonable range of soil nailing parameters under a certain slope height,and the example of typical soil nailing is selected to evaluate the supporting effect,and then the slope safety coefficient and the largest horizontal displacement before and after treatment are compared.The test results show that slope stability has been greatly increased by selecting the reasonable supporting parameters of soil nailing based on the orthogonal test.The results of soil nailing can be used as references for quantitative design of soil nailing.
Soil nailing has been widely used in slope engineering,but so far there are no norms that the soil nailing parameter selection can conform to.Based on the finite difference method FLAC software,orthogonal design for numerical simulation is used to get a reasonable range of soil nailing parameters under a certain slope height,and the example of typical soil nailing is selected to evaluate the supporting effect,and then the slope safety coefficient and the largest horizontal displacement before and after treatment are compared.The test results show that slope stability has been greatly increased by selecting the reasonable supporting parameters of soil nailing based on the orthogonal test.The results of soil nailing can be used as references for quantitative design of soil nailing.
引文
[1]秦四清.深基坑工程优化设计[M].北京:地震出版社,1998.
[2]陈肇元,崔京浩.土钉支护在基坑工程中的应用(2版)[M].北京:中国建筑工业出版社,2000.
[3]孙荣恒,伊享云,刘琼荪.数理统计[M].重庆:重庆大学出版社,2002.
[4]李志刚,秦四清.土钉支护现场测试及三维数值模拟[J].工程地质学报,2004,12(1):69-73.
[5]崔岩,赵国景.土钉支护参数的研究[J].特种结构,2001,18(4):36-38.
[6]王子胜.公路边坡土钉支护结构设计方法研究[J].城市道桥与防洪,2005,5(3):27-29.
[7]建设部学部委员会.土钉支护设计与施工技术条例(讨论稿)[M].北京:建筑工业出版社,1996.
[8]尉希成,周美玲.支挡结构设计手册[M].北京:中国建筑工业出版社,2004.
[2]陈肇元,崔京浩.土钉支护在基坑工程中的应用(2版)[M].北京:中国建筑工业出版社,2000.
[3]孙荣恒,伊享云,刘琼荪.数理统计[M].重庆:重庆大学出版社,2002.
[4]李志刚,秦四清.土钉支护现场测试及三维数值模拟[J].工程地质学报,2004,12(1):69-73.
[5]崔岩,赵国景.土钉支护参数的研究[J].特种结构,2001,18(4):36-38.
[6]王子胜.公路边坡土钉支护结构设计方法研究[J].城市道桥与防洪,2005,5(3):27-29.
[7]建设部学部委员会.土钉支护设计与施工技术条例(讨论稿)[M].北京:建筑工业出版社,1996.
[8]尉希成,周美玲.支挡结构设计手册[M].北京:中国建筑工业出版社,2004.
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