论文部分内容阅读
喷射混凝土是将水泥、砂、石和速凝剂的混凝土料,通过喷射机以较高的压力喷向受喷面,形成与围岩结构面紧密结合的混凝土护面,是一种施工速度较快的支护形式。本文主要介绍河南省燕山水库输水洞工程喷射混凝土配合比设计、选定及施工工艺。
Sprayed concrete is the concrete material of cement, sand, stone and quick-setting admixture, which is sprayed to the sprayed surface with high pressure through the jetting machine to form the concrete protective surface which is closely combined with the surrounding rock structure surface. It is a quick construction speed Support form. This article mainly introduces the mix design, selection and construction technology of shotcrete for water conveyance tunnel project of Yanshan Reservoir in Henan Province.