| 刘晓敏,蔡勇平,蔡晓鸿.水工压力隧洞灌浆式预应力衬砌干缩应力与徐变应力计算[J].江西水利科技,2019,(6): |
| 水工压力隧洞灌浆式预应力衬砌干缩应力与徐变应力计算 |
| Shrinkage and creep stressful calculation of grouting-prestress-lining in water pressure tunnel |
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| DOI： |
| 中文关键词: 预应力 衬砌 隧洞 应力 |
| 英文关键词: Prestress Linling Tunnel Stress |
| 基金项目: |
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| 中文摘要: |
| 水工压力隧洞结构设计的理论基石是隧洞衬砌与围岩联合工作，为充分利用砼抗压强度高的优点和提高围岩的承载能力，采用灌浆式预应力衬砌是一种富具应用前景的技术方法.但灌浆式预应力衬砌隧洞，由于压浆环干缩硬化和砼徐变影响，使衬砌获得的预应力有所损失，笔者采用岩石力学中应用广泛的莫尔—库仑屈服条件，对水工压力隧洞灌浆式预应力衬砌干缩应力和徐变应力进行了系统分析，给出了相应的解析计算式. |
| 英文摘要: |
| The theoretical foundation of the structural design of hydraulic pressure tunnel is the combination of tunnel lining and surrounding rock.However，due to the influence of dry shrinkage and hardening of grouting ring and creep of concrete，the prestressed lining tunnel obtained by grouting has some losses.By using the mohr-coulomb yield condition widely used in rock mechanics，the author systematically analyzes the dry shrinkage stress and creep stress of grouting prestressed lining of hydraulic pressure tunnel，and gives the corresponding analytical formula. |
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