SPR工法是东京都下水道服务中心、积水化学工业和足立建设三家企业,在东京都下水道局的指导下新开发的施工技术。 该施工技术的特点①不用开挖管沟就能进行施工,把安装管就位;②不损伤地面建筑物施工;③不影响下水道系统的使用。见图示。 该方法的施工情况是:在沙井中安置制管 The SPR method is a newly-developed construction technology under the guidance of the Tokyo Metropolitan Government’s Sewerage Bureau, the Tokyo Metropolitan Government’s Sewerage Service Center, Sekisui Chemical Industry, and Adachi Construction. The characteristics of the construction technology 1 can be carried out without excavating the trench, and the installation pipe is in place; 2 it does not damage the construction of the ground structure; 3 it does not affect the use of the sewer system. See illustration. The construction of the method is: placing the pipe in the manhole