通常安装在减压阀，泄压阀、定水位阀或其它设备的进口端，用来消除介质中的杂质，以保护阀门及设备的正常使用。

Usually installed in the valve, pressure relief valves, water valves or other devices given the import side, the medium used to remove impurities, to protect the normal use of valves and equipment.

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在压桩过程中同时在桩侧注入浆液，桩尖达到设计深度后，浆液随着桩的沉入在桩端形成注浆扩大头。

In the time of pressing the pile, the grout are inject into the soil. When the pile tip reaches the design depth, then continue to inject grout into the pile, so that the pile head expand.

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通过对钻孔灌注桩地基处理的工作机理及桩端压浆技术在桥梁建设地基工程中的应用。

This paper expounds the application of the cast-in-place pile for its function and grouting technique in the foundation project of bridge construction.

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