This paper presents the principle, characteristics and construction process of the technique.

文章介绍了该技术的原理、特点、施工工艺流程。

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This paper introduces the principle and technique of river way immersed tube construction, and compare with traditional river way cofferdam construction.

介绍了河道沉管法施工原理和工艺，并与传统的河道围堰施工作了一定的比较。

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The principle and construction technique of horizontal frozen hole by pneumatic tamping pipe method were introduced in this paper.

介绍了气动夯管法施工水平冻结孔的工艺原理及施工工艺。

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