可控土层挤密非开挖管线铺设方法及应用

Controllable Soil Displacement No-dig Pipeline Installing Methods and Their Applications

摘要:

介绍了4种方向可控的土层挤密式非开挖管线铺设方法：可控冲击矛挤密工法、可控冲击矛水平钻进技术、先导式土层挤密施工技术和土层挤密式微型隧道施工技术。同时，还对各种施工方法的使用条件和应用情况作了简要论述。

关键词:非开挖施工技术;管线铺设;土层挤密;方向可控;冲击矛;先导式;微型隧道

Abstract:

This paper presents four kinds of direction controllable trenchless techniques for pipeline installation. The principle of these techniques, including controllable impact moling, horizontal drilling with controllable pneumatic hammer, soil displacement pilot hole drilling technique and soil displacement micro-tunneling, is that the soils are displaced to the hole wall rather than removed to the ground surface during construction. In addition, the suitable conditions for each method are introduced.

Key words:trenchless technology; pipeline installation; soil displacement; direction controllable; impact moling; pilot hole; micro-tunneling