| 摘要: |
| 本文推导了地下高压管道中钢衬、衬砌混凝土和围岩在施加内压的各个阶段中应力和位移的计算公式，这些公式适用于不同层间缝隙以及衬砌混凝土与围岩存在不同径向裂缝的情况，亦可应用这些公式计算混凝土与围岩产生径向裂缝时的临界内水压力和裂缝的开裂区半径，与同类计算公式相比，其精确性更高，适用性更广。 |
| 关键词: 高压管道,钢衬,混凝土衬砌,围岩 |
| DOI： |
| 分类号:U173 |
| 基金项目: |
|
| The calculation for the combined pressure bearing of high pressure underground conduit |
|
Chen Zhongxian, Li Hong
|
|
Nanjing Hydraulic Research Institute
|
| Abstract: |
| In this paper, derived the formulas for calculating the stresses and deformations of concrete lining,steel lining and surrounding rock of high pressure underground conduit in which internal pressures are applied during different stages. These formulas are applicable to the cracks in different layers or different radial cracks in concrete lining and surrounding rock, also to the calculation of critical internal water pressure causing radial cracks in concrete and surrounding rock,and to the calculation of the radii within crack area. Compared with other similar ones,these formulas have higher precision and more extensive application. |
| Key words: high pressure conduit,steel lining,concrete lining,surrounding rock |
