杭新景高速公路岩溶路基土洞注浆处理施工探讨

Discuss the Subgrade Soil Karst Hole Grouting Treatment Construction of Hangzhou Xinjing Highway

在杭新景高速公路中遇到的岩溶路基土洞采用了注浆法进行处理，本文对注浆法的施工工艺、成孔技术和施工过程中的注意事项进行了总结。注浆法在为预防路基塌陷失稳，保证路基的稳定性和安全性方面，取得了预期的效果。

The subgrade soil karst hole grouting of Hangzhou Xinjing highway adopted the grouting method for processing. This article summaries the announcements of grouting method in the process of construction technology, pore forming tech-nology and construction. The grouting method has achieved expected results in the roadbed subsidence instability, the sta-bility and safety of roadbed.