The paper points out the sedimentation of pipelines in silt soil could lead to the destruction of the pipeline, analyzes the pipeline sedi- mentation in different circumstances, and points out the respective methods to solve the pipeline sedimentation by combining with respective theoretic calculation and factual projects, so it achieves better effect in factual projects.%指出敷设于淤泥质土中的管道容易产生一定程度的沉降，导致管道损坏，通过对不同情况的管道沉降进行分析，结合相应的理论计算和实际工程，提出相应方法来解决污水厂的管道沉降问题，在实际工程中取得良好效果。
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