某膨胀土挖方边坡的综合处治
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摘要
结合膨胀土挖方边坡治理实例,对包括膨胀土边坡支护理念问题、膨胀土强度取值问题、边坡稳定性分析及优化设计问题、扩底锚杆工艺及其试验研究问题、坡面防护问题等进行研究,其中对膨胀土地层扩底锚杆试验研究表明,浇筑完毕后未经降雨影响的试验锚杆,扩底锚杆比非扩底锚杆锚固力提高不多;但降雨浸泡后,非扩底锚杆锚固力会大幅度下降,扩底锚杆锚固力下降不明显,说明扩底锚杆在膨胀土地层中的应用是成功的。
The relative researches are carried out with a case of cut slope treatment engineering of expansive soils.It is involved that the shoring idea of expansive soils slope,the strength value of expansive soils,the slope stability analysis and its optimizing design,the technics of anchor bar with expanding root and its test study,the protection of sloping surface,and so on.And the anchor bar with expanding root test study indicated in expansive soils area that anchorage forces of the expanding roots are not obviously different from the those of non-expanding roots when the tests has been done before raining,but after raining the non-expanding roots' anchorage force will decrease to a large extent but the expanding roots' decreasing extent is little.Such data indicates that the applications of anchored bars with expanding roots in expansive soils are successful.
The relative researches are carried out with a case of cut slope treatment engineering of expansive soils.It is involved that the shoring idea of expansive soils slope,the strength value of expansive soils,the slope stability analysis and its optimizing design,the technics of anchor bar with expanding root and its test study,the protection of sloping surface,and so on.And the anchor bar with expanding root test study indicated in expansive soils area that anchorage forces of the expanding roots are not obviously different from the those of non-expanding roots when the tests has been done before raining,but after raining the non-expanding roots' anchorage force will decrease to a large extent but the expanding roots' decreasing extent is little.Such data indicates that the applications of anchored bars with expanding roots in expansive soils are successful.
引文
1廖世文.膨胀土与铁路工程.北京:中国铁道出版社,1984
2包承纲.非饱和土的性状及膨胀土边坡稳定性分析.岩土工程学报,2004,26(1):1-15
3刘松玉,季鹏,方磊.击实膨胀土的循环膨胀特性研究.岩土工程学报,1999,21(1):9-13
4王文生,谢永利,梁军林.膨胀土路堑边坡的破坏形式和稳定性.长安大学学报,2005,25(1):20-24
5计雅筠,张季历.膨胀土路堑边坡整治理方法研究.西铁科技,1993,71(3):1-5
6 JTGD 30-2004公路路基设计规范
7 TB 10035-2002铁路特殊路基设计规范
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10郑颖人,沈珠江,龚晓南.岩土塑性力学原理.北京:中国建筑工业出版社,2002
11徐干成,郑颖人.岩土工程中屈服准则应用的研究.岩土工程学报,1990,12(2):93-99
12龚晓南.土工计算机分析.北京:中国建筑工业出版社,2000
13张鲁渝,时卫民,郑颖人.平面应变条件下土坡稳定有限元分析.岩土工程学报,2002,24(4):487-490
14程良奎,张作楣,杨志银.岩土加固实用技术.北京:地震出版社,1994
15张公政.MRA-2型锚杆扩底钻头的研制.探矿工程,1997(增刊):75-76
16耿卫红,罗春华.岩土锚固技术及其应用.探矿工程,1997(4):8-10
17张乐文,刘传波.新型锚杆及岩土锚固新技术.公路交通科技,2004,21(7):26-29
18童吉元,王靖涛.土层锚杆技术问题探讨.土工基础,2004,18(1):41-43
19吴俐萍,梁文洲.永久性锚杆在膨胀土中的应用.广西城镇建设,2004(12):20-21
20刘克文,吴蔚.对发展我国岩土锚固的几点意见.西部探矿工程,2005(10)
21张贵忠.铁路绿色通道喷射混凝土植生技术.西北水资源与水工程,2003,14(4):33-36
2包承纲.非饱和土的性状及膨胀土边坡稳定性分析.岩土工程学报,2004,26(1):1-15
3刘松玉,季鹏,方磊.击实膨胀土的循环膨胀特性研究.岩土工程学报,1999,21(1):9-13
4王文生,谢永利,梁军林.膨胀土路堑边坡的破坏形式和稳定性.长安大学学报,2005,25(1):20-24
5计雅筠,张季历.膨胀土路堑边坡整治理方法研究.西铁科技,1993,71(3):1-5
6 JTGD 30-2004公路路基设计规范
7 TB 10035-2002铁路特殊路基设计规范
8廖济川.膨胀土抗剪强度的研究概况//全国首届膨胀土科学研讨会论文集.成都:西南交通大学出版社,1990
9赵尚毅.有限元强度折减法及其在土坡与岩坡中的应用:[博士学位论文].重庆:后勤工程学院,2004
10郑颖人,沈珠江,龚晓南.岩土塑性力学原理.北京:中国建筑工业出版社,2002
11徐干成,郑颖人.岩土工程中屈服准则应用的研究.岩土工程学报,1990,12(2):93-99
12龚晓南.土工计算机分析.北京:中国建筑工业出版社,2000
13张鲁渝,时卫民,郑颖人.平面应变条件下土坡稳定有限元分析.岩土工程学报,2002,24(4):487-490
14程良奎,张作楣,杨志银.岩土加固实用技术.北京:地震出版社,1994
15张公政.MRA-2型锚杆扩底钻头的研制.探矿工程,1997(增刊):75-76
16耿卫红,罗春华.岩土锚固技术及其应用.探矿工程,1997(4):8-10
17张乐文,刘传波.新型锚杆及岩土锚固新技术.公路交通科技,2004,21(7):26-29
18童吉元,王靖涛.土层锚杆技术问题探讨.土工基础,2004,18(1):41-43
19吴俐萍,梁文洲.永久性锚杆在膨胀土中的应用.广西城镇建设,2004(12):20-21
20刘克文,吴蔚.对发展我国岩土锚固的几点意见.西部探矿工程,2005(10)
21张贵忠.铁路绿色通道喷射混凝土植生技术.西北水资源与水工程,2003,14(4):33-36
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