Taking Ning-An railway engineering as an example, the paper studies different karst grouting construction technology schemes of high speed railway subgrade, introduces the grouting construction technology, and implements some measures of preventing grouting waste and investment control. Through scientific management, it ensures the quality security and reduces the investment cost as well.%以宁安铁路工程为例,研究了高速铁路路基不同岩溶注浆施工技术方案,介绍了注浆施工工艺,实施了防止浆液浪费与投资控制措施。通过科学管理,确保了质量安全,降低了投资成本。
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