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.
涵顶垂直土压力系数随回填土高度的变化为先增后减的趋势； 填土中最大位移点随填土高度而变等。
The result involves the earth pressure on the top of culvert, the lateral earth pressure and the displacement of the earth with the different height of backfill.
待涵管道安装完成并经验收合格后，方可进行土方回填。
To pipe installation is complete and experience the qualified, conducted only after backfill earthwork.
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