水泥注浆引发砂层地下水环境劣化试验研究

郑浩博; 钱自卫; 姜春露; 张改玲

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中国环境科学 ›› 2026, Vol. 46 ›› Issue (2) : 821-832.

水污染与控制

水泥注浆引发砂层地下水环境劣化试验研究

郑浩博, 钱自卫, 姜春露, 张改玲

作者信息 +

Experimental study on the deterioration of groundwater environment in sand layers caused by cement grouting

ZHENG Hao-bo, QIAN Zi-wei, JIANG Chun-lu, ZHANG Gai-ling

Author information +

文章历史 +

摘要

通过搭建动态试验系统开展长期恒流渗滤柱试验,并结合水质检测与水化学分析发现:水泥基材料注浆显著劣化地下水水质.注浆体渗析出的过量离子(Ca²⁺、OH⁻等)及液相产物,致使水体pH值大幅升高(初始值达13左右)、总溶解固体(TDS)等水质指标严重超标(初始值达3000mg/L左右),显著提升了水体硬度与碱度等,增强了其还原性,并改变了水化学类型;水泥注浆的残留污染会对水体的离子平衡造成剧烈冲击,且不同类型水泥注浆会导致水质发生不同程度的聚类恶化;水泥中硅铝相熟料水化、外加掺料二次水化及调控填料矿物溶解,是造成注浆污染的核心驱动因素.

Abstract

A dynamic experimental system was employed to conduct long-term constant-flow leaching column tests, combined with water quality testing and hydrochemical analysis, and it was found that groundwater quality was significantly degraded by cement-based grouting materials. Excess ions (Ca²⁺, OH⁻, etc.) and liquid-phase products leached from the grouting body caused a marked rise in water pH and severe exceedances of water quality indicators such as total dissolved solids (TDS). This led to a significant increase in water hardness and alkalinity, enhanced its reducibility, and altered its hydrochemical type. Residual pollution from cement grouting resulted in severe disruption to the ion balance of the water body, and varying degrees of clustered deterioration in water quality were induced by different types of cement grouting. The hydration of silica-alumina phase clinker in cement, secondary hydration of added admixtures, and dissolution of controlled filler minerals were confirmed as the core driving factors causing grouting pollution.

导出引用

郑浩博, 钱自卫, 姜春露, 张改玲. 水泥注浆引发砂层地下水环境劣化试验研究[J]. 中国环境科学. 2026, 46(2): 821-832

ZHENG Hao-bo, QIAN Zi-wei, JIANG Chun-lu, ZHANG Gai-ling. Experimental study on the deterioration of groundwater environment in sand layers caused by cement grouting[J]. China Environmental Science. 2026, 46(2): 821-832

中图分类号： X703.5

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