小浪底水利枢纽地下工程设计综述  

A summary of the design of the underground works in Xiaolangdi Multipurpose Project

作　　者：齐震明[1] 于立新[1] 

机构地区：[1]黄委会勘测规划设计研究院

出　　处：《水力发电》1996年第7期12-16,共5页Water Power

摘　　要：黄河小浪底水利枢纽是治理黄河的特大型控制工程，为了满足枢纽总布置的要求，在左岸相对较单薄的山体内布置有：３条孔板泄洪洞（由导流洞改建而成）、３条排沙泄洪洞、３条明流泄洪排漂排污洞、６条发电洞、３条尾水洞、１条龙溉洞和典型的三洞室布置的地下厂房，形成了小浪底枢纽洞室群的独特布置格局。小浪底枢纽地下工程规模浩大，其地下洞室的设计各具特点，孔板洞内采用多级孔板消能，排沙洞采用后张法预应力混凝土衬砌结构，不设刚性支护的大跨度地下厂房，这些新技术的采用，为今后高土石坝导流、泄洪、发电问题的处理开创了新路。Xiaolangdi Multipurpose Project in the Yellow River is a special large-sized control project for harnessing the Yellow River. In order to meet the requirements of the general porject layout, the following items have been arranged in the relative thin mountain in the left bank: three orifice-plate flood releasing tunnels (rebuilt from diversion tunnels), three sand flushing and flood releasing tunnels, three free-flow tunnels for flood releasing, floating ndebris and trash cleaning, six power generation tunnels, three tailwater tunnels, one irrigation tunnel, and ee-cavern layout, which forms a particular layout pattern of cavern group. the scale of underground works of Xiaolangdi Multipurpose Project is grand and the design of underground caverns hastheir own feaures. The energy dissipation by multi-stage orifice-plate has been adopted in orifice-plate tunnel. The lining structure by post-tensioned prestressed concrete has been used in sand flushing tunnel. Large-span underground powerhouse without rigid support has been adopted. The application of these new technologies will create a new way for solving water diversion, flood releasing and power generation for high earth-rock dam from now on.

关 键 词：水利枢纽工程 地下工程 地下洞群 设计 

分 类 号：TV61[水利工程—水利水电工程]