论帷幕注浆施工中的压力管理

Introduction of the Pressure Control in Curtain Grouting Construction

在帷幕注浆施工中,注浆压力是一个重点控制的内容,通过注浆压力的分析、研究,可以判别浆液在岩石裂隙中充填、扩散、挤密过程,从而调节浆液浓度变化、控制注浆量,在很大程度上能控制帷幕注浆治水效果及经济成本。结合赵家湾铜矿帷幕灌浆治水工程,分析了帷幕注浆施工中浆液在岩石裂隙中充填、扩散、挤密过程注浆压力的变化规律,为注浆施工的压力控制提供依据。

Grouting pressure control is an important step in curtain grouting, by the analysis on the grouting pressure, the process of grouting filling, diffusion and compaction in rock fissures can be distinguished to regulate the slurry concentra-tion, control the grouting volume, and further more to control the water control effects in curtain grouting and the grouting construction cost to a large extent.According to a curtain grouting water control project in Zhaojiawan copper mine, analysis is made on the variation of grouting pressure during the process of grouting filling, diffusion and compaction in rock fis-sures, which can be the reference to the pressure control of grouting construction.