老城区复杂环境下综合管廊深基坑支护施工技术

Construction Technology of Deep Foundation Pit Support in Utility Tunnel under Complex Environment of Old City

在老城区综合管廊基坑支护施工需要充分考虑周边环境及不良地质情况,比如附近山体、建构筑物、地下管线、既有道路及不良地质条件等因素。防止采用的深基坑支护形式不当,对周边建构筑物、既有道路及地下管线带来危害,以及由于附近山体、既有道路荷载及不良地质条件等对深基坑支护结构带来影响。采用合理的深基坑支护形式,并采用科学的基坑监控量测,可有效的减少综合管廊深基坑施工对周边环境的影响,以及周边环境荷载、不良地质等因素对深基坑支护结构的影响。

In the construction of foundation pit support of comprehensive pipe gallery in the old city,the surrounding environment should be fully considered,such as nearby mountains,buildings,existing roads and adverse geological conditions.To prevent the improper form of deep foundation pit support,which will bring harm to the surrounding buildings and existing roads,as well as the influence of the nearby mountains,existing road load and adverse geological conditions on the deep foundation pit support structure.Adopting reasonable deep foundation pit support form and adopting scientific foundation pit monitoring measurement can effectively reduce the impact of comprehensive pipe gallery deep foundation pit construction on the surrounding environment,as well as the impact of surrounding environmental load and adverse geology on the deep foundation pit support structure.