| 危岩主控结构面的冻胀力计算公式研究 |
| |
| 引用本文： | 赵鹏,唐红梅.危岩主控结构面的冻胀力计算公式研究[J].重庆交通大学学报(自然科学版),2008,27(3):420-423,445. |
| |
| 作者姓名： | 赵鹏 唐红梅 |
| |
| 作者单位： | 重庆交通大学,岩土工程研究所,重庆,400074;重庆交通大学,岩土工程研究所,重庆,400074 |
| |
| 摘 要： | 主控结构面的形成和扩展是研究危岩发育机理的核心。基于损伤力学、断裂力学、弹性力学等理论,对冻融循环条件下主控结构面的产生和扩展进行了研究。提出了主控结构面损伤扩展的条件,建立了冻结状态下作用在主控结构面上的冻胀力计算公式,通过工程实例给出了公式的运用方法,分析了影响主控结构面冻胀力大小的因素,为危岩发育机理的深入研究奠定了理论基础。
|
| 关 键 词： | 危岩 主控结构面 冻融循环 冻胀力 计算方法 |
| 文章编号： | 1674-0696(2008)03-0420-04 |
| 修稿时间： | 2007年5月15日 |
Research on the Damage Mechanism due to Freezing and Thawing Force of Control Fissure in Perilous Rock |
| |
| ZHAO Peng,TANG Hong-mei.Research on the Damage Mechanism due to Freezing and Thawing Force of Control Fissure in Perilous Rock[J].Journal of Chongqing Jiaotong University,2008,27(3):420-423,445. |
| |
| Authors: | ZHAO Peng TANG Hong-mei |
| |
| Abstract: | The formation and expanding of control fissure is the core of mechanism for perilous rock to develop.Based on the theory of damage mechanics,fracture mechanics and elastic mechanics,the formation and expanding of control fissure were researched under the condition of cycle of freezing and thawing.The precondition of control fissure to be damaged and expanded was put forward,and the calculation formulation of frost force on control fissure under freezing condition was established.The applicative method of the calculation formulation has been introduced through an engineering example,and several factors influencing the frost force on control fissure were analyzed.A theoretic foundation for deeper research on the mechanism of perilous rock to develop is established. |
| |
| Keywords: | perilous rock control fissure cycle of freezing and thawing frost force calculation methods |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
