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1 工程简介淇河盘石头水库工程是河南省重点建设项目,总投资9.98亿元。坝址位于河南省鹤壁市西南15km处盘石头村附近。输水洞工程是枢纽工程的主要组成部分,由河南省水利第一工程局承建。洞身位于大坝左坝肩下,为圆型有压供水、灌溉、发电洞。主洞直径3.50m,长310.00m,为钢筋混凝土结构。输水洞洞身混凝土衬砌厚80cm,设计混凝土标号C30 S8D150,钢筋保护层5cm。洞室开挖最大允许超挖20cm,考虑施工条件、施工工艺及施工成本,采用每仓分两次浇筑方式较为
1 Project Profile Qihepan stone reservoir project is a key construction project in Henan Province, with a total investment of 998000000 yuan. The dam site is located near Panshitou 15 km southwest of Hebi City, Henan Province. Water tunnel project is the main component of the hub project, contracted by the Henan Provincial Water Resources Engineering Bureau. The cave body is located under the dam abutment and is provided with pressurized water supply, irrigation and power generation holes. The main hole diameter of 3.50m, length 310.00m, for the reinforced concrete structure. Water tunnel concrete body thickness of 80cm, design of concrete label C30 S8D150, steel protective layer 5cm. Excavation of the maximum allowable excavation of tunnel 20cm, consider the construction conditions, construction technology and construction costs, the use of each bunk twice pouring more