预注浆（ pre-grouting），工程开挖前使浆液预先充填围岩裂隙，达到堵塞水流、加固围岩目的所进行的注浆。可分为工作面预注浆，即超前预注浆；地面预注浆，包括骚井地面预注浆和平巷地面预注浆。
本文介绍了地面预注浆施工技术在杨柳煤矿副井中的应用。
The thesis presents the application of surface pre-grouting to construction of auxiliary shaft in Yangliu coalmine.
介绍了预注浆方案的设计及施工方法，并分析了注浆效果。
This paper introduces the design of the pre - injecting scheme and the construction method, and analyzes on the injecting results.
介绍了张集矿立井基岩段水文地质和基岩地面预注浆的有关情况。
Hydrogeology of the basement section and prior ground injection of pulp into it are described for the shafts of Zhangjimine.
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