超前小导管注浆加钢支撑是隧道工程辅助开挖的一种施工工艺，特别适用于地质条件不良的隧道施工。
The pump pouring liquid with the supporting of steel by a small pipe is one of the add craft in tunnel construction and it is fit for tunnel project in bad geology condition.
介绍用小导管预注浆法加固地基技术及其在旧楼下建新基础的施工实例。
This paper presents the foundation soil strengthening by small tremie pre -grouting methods and an example of construction of new foundation to be built under an old building.
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