水工压力隧洞结构限裂设计研究现状  

Review on Crack Limiting Design of High Pressure Tunnel in Hydraulic Project

作　　者：沈威[1] 徐世烺[1] 

机构地区：[1]大连理工大学建设工程学部,辽宁大连116024

出　　处：《水电能源科学》2010年第3期84-87,共4页Water Resources and Power

基　　金：国家自然科学基金资助重点项目(50438010)

摘　　要：针对限裂设计为水工高压隧洞设计的核心问题,基于钢筋混凝土结构裂缝计算理论的研究现状,分析比较了衬砌结构的裂缝计算公式,并探讨了水工隧洞衬砌试验研究现状。结果表明,裂缝宽度计算理论并未取得共识,计算公式均有不足,不能完全满足衬砌结构设计的实际需求,还有待于进一步改进和完善。Design of limiting crack is a key problem for design of high pressure tunnel in hydraulic project. Based on the current situation of structure crack calculation theory of reinforced concrete, crack calculation formula of the lining structure is analyzed. The current situation of hydraulic tunnel lining test is discussed. The result shows that the computation theory of crack width does not reach an agreement and computation formula has some drawbacks. Therefore, it can not meet the requirements of the lining structure design and need more improvements.

关 键 词：水工压力隧洞 衬砌 围岩 裂缝宽度 限裂设计 

分 类 号：TV732.3[水利工程—水利水电工程]