某盾构隧道三重管高压旋喷桩施工技术

Construction Technology of Triple-Tube High Pressure Rotary-Jet Pile in a Shield Tunnel

高压喷射注浆法作为一种常用的地基处理技术,以其设备简单、施工方便、适用于特殊和复杂地基处理、无环境污染等特点而得到广泛应用。结合工程实例,介绍了用三重管高压旋喷桩加固盾构始发及到达区土体的方法,阐述了三重管高压旋喷注浆法的施工工艺,提出了质量控制措施。

The high pressure rotary-jet grouting technology is a common ground treatment technology, which was widely used for its simple equipment, convenient construction, adapted for solving the peculiar foundation and complex project problems, and no pol- lution to the environment. Combined with the project, the Triple-tube high pressure rotary-jet pile was used to consolidate the soil from the shield launching area to arriving area is introduced, and its construction technology is stated. The quality control measures are also proposed.