穿越既有线超浅埋暗挖通道的质量监控

近年来,采用浅埋暗挖法修建的地下工程越来越多,它与明挖法、盾构法一样为地下工程的主要施工方法之一,而在超浅埋地层穿越既有线中采用暗挖法施工在国内是罕见的。本文重点介绍了我公司项目监理部在长春北站房地下通道的施工监理过程中,针对该工程超浅埋的特点,以新奥法的基本原理为基础,所采用的超浅埋暗挖法的控制重点及其质量监控措施。通过有效监控,既成功地保证了地下通道穿越了既有线路,保证了铁路运营的安全,同时也使该工程的质量达到优良标准,为今后穿越既有线超浅埋暗挖法施工的质量控制积累了经验。该工程的成功建成得到了业主及社会各方的高度评价。

THE QUALITY SUPERVISION OF PASSING THE EXITING LINE ADOPTED THE SUPER SHALLOW BURIED SUBSURFACE EXCAVATION METHOD

The shallow-depth subsurface excavation method used in recent years by more and more underground engineering projects. The cut -and -cover method and the shield method have become one of the main construction methods for underground projects, but it is rare at home to employ the subsurface method where the extra -shallow depth stratum passes through existing lines. This article emphatically introduces the focal control points and quality supervisory measures taken by the project supervision office of our corporation in adopting, based on the features of the project and the cardinal principle of the New Austrian Method, the extra -shallow depth subsurface excavation method during the supervision of construction of the underpass beneath the Changchun north station building. By way of the effective supervision and control, the underpass successfully runs through the existing lines, ensuring the safety of railway operation, and at the same time helping the project reach the standard of excellence in quality, which has accumulated experience in the quality control over the construction traversing exiting lines with the extra -shallow depth subsurface method. The completion of the project is highly spoken by the employer and people from all walks of life.