| 无衬砌水工压力隧洞围岩破坏机理研究 |
| |
| 引用本文： | 方延强.无衬砌水工压力隧洞围岩破坏机理研究[J].铜业工程,2011(5):11-13. |
| |
| 作者姓名： | 方延强 |
| |
| 作者单位： | 林同棪国际工程咨询(中国)有限公司四川分公司,成都,610065 |
| |
| 摘 要： | 基于Kiersch导出的在连续、均质和各向同性岩体中开挖圆形隧洞平面问题应力解以及Mohr-Cou-lomn屈服准则,分别研究了圆形有压输水隧洞在施工期和运行期围岩的破坏规律,并根据不同侧压系数,分别推导出了各种情况下洞室围岩的破坏规律,得到了不同侧压系数条件下洞室围岩产生塑性变形的临界内水压力,可以有效地预防无衬砌洞室渗漏水问题,为水工无衬砌有压输水隧洞的设计提供参考。
|
| 关 键 词： | 圆形 无衬砌压力隧洞 围岩 破坏 侧压系数 |
Research on the Surrounding Rock Failure Mechanics of Unlined Pressure Tunnels |
| |
| FANG Yan-qiang.Research on the Surrounding Rock Failure Mechanics of Unlined Pressure Tunnels[J].Copper Engineering,2011(5):11-13. |
| |
| Authors: | FANG Yan-qiang |
| |
| Affiliation: | FANG Yan-qiang(T.Y.LIN SC.,Chengdu,China 610065) |
| |
| Abstract: | Based on the plane problem stress analytical during circular tunnel excavation in continuous homogeneous isotropic rock and Mohr-Coulomn criterion,the paper analyses the surrounding rock failure regularity of round water tunnel during construction and operation period.According to the difference of lateral pressure coefficients,the failure regularity of surrounding rock of round water tunnel under various conditions are derived,and the critical internal water pressures data are also obtained.These can be us... |
| |
| Keywords: | circular unlined pressure tunnel surrounding rock failure lateral pressure coefficient |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
