铁路强烈发育岩溶路基注可控水泥浆处理技术

The well developed karst foundation which injected controlled cement paste under railway bed

以黔张常铁路路基工程为依托,在强烈发育区岩溶区,利用呈水平向和呈竖向发育的试验孔采用注可控水泥浆处理强烈发育区岩溶地基,通过控制可控水泥浆处理地基的扩散半径、环境影响可控,以充填为目的的岩溶区注浆技术应逐渐过渡到用可控水泥浆替代常规水泥浆。

The work concerned subgrade treatment of the Qianzhangchang railway. Controllable cement grout was injected into test holes running horizontally and vertically as an effort to treat foundations in a strongly developed karst zone. The environmental impact was controllable by controlling the diffusion radius of the controllable cement grout. It is thus desirable that conventional cement grouting with the aim of filling up in a karst zone should progressively give way to controllable cement grouting.