结合广州地铁和深圳地铁的盾构工程实例，介绍盾构施工中的管片壁后回填注浆的多种类型并作了比较分析。
Based on shield construction in Guangzhou Metro and Shenzhen Metro, an introduction is given to various types of backfilling grouting behind segment, and a comparison was made.
实践证明采用注浆技术比采用回填等方法加固具有质量好，效率高、成本低等特点。
The fact shows that grouting technique has characters of better quality, higher efficiency and less cost compared with refilling method.
实践证明采用注浆技术比采用回填等方法加固具有质量好，效率高、成本低等特点。
The fact shows that grouting technique has characters of better quality, higher efficiency and less cost compared with refilling method.
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