特长水工隧洞衬砌混凝土配合比的优化研究

Optimizing Study on Lining Concrete' Mix Proportion in Construction Of Longer Hydraulic Tunnel

隧洞施工中,混凝土衬砌是制约工期和保证质量最为关键的一道工序,对于特长隧洞尤为重要。以某重点供水工程为研究背景,着重对水工隧洞衬砌混凝土的配合比进行优化研究,通过设计、调整、试配和优化,配制出了满足施工技术指标要求的混凝土,确保了隧洞衬砌混凝土的质量。同时,通过优化有效地节约了水泥等胶凝材料用量,节省了工程成本。

In the construction of hydraulic tunnel,concrete lining is the most critical process,which restricts the construction period and guarantees construction quality.And it ＇ s especially important for the longer hydraulic tunnel.In this paper,it focuses on studying mix proportion of concrete based on the background of a water supply project.Through more than once concrete tests and optimization experiments,it gets the final mix proportion of concrete.The mix proportion of concrete not only meets the requirement of construction technical index,but also effective saves the amount of gelation material and project cost.