综合管廊内各管线安全距离的理论研究  

Theoretical Study on Safety Distance of Pipelines in Utility Tunnel

作　　者：杨秋侠[1] 冯彦妮 Yang Qiuxia;Feng Yanni(xi＇ an University of Architecture and Technology, Xi ＇ an 710055, P.R. China)

机构地区：[1]西安建筑科技大学土木工程学院,西安710055

出　　处：《地下空间与工程学报》2018年第2期293-298,共6页Chinese Journal of Underground Space and Engineering

基　　金：陕西省自然科学基金(2016JM5096);国家自然科学基金面上基金(E080510);国家自然科学基金青年基金(51408460)

摘　　要：综合管廊作为城市地下空间开发利用的重要研究内容,是保障城市可持续发展的重要基础设施之一,我国已在全国各城市广泛开展城市地下综合管廊的规划与设计。笔者在总结国内外综合管廊布置现状的基础上,根据每种市政管线自身的特点和属性,初步分析了综合管廊内各管线间安全距离的四大影响因素,即管径、管压、管材和管内输送介质危害程度等,以及这四大影响因素与安全距离的逻辑关系。结合空间作用模型,运用负幂律距离衰减曲线,建立了管廊内各管线间的安全距离模型。并将此模型应用到某市华贯路管廊工程实例中,验证了该模型的实用性。其结果可以作为综合管廊是否分舱室布置的参考依据,以达到优化综合管廊截面形式的目的。Utility tunnel,as an important research of the urban underground space exploitation which has become one of critical infrastructures for guaranteeing the sustainable urban development,has gradually become an important project in municipal engineering. The planning and design of urban underground utility tunnel has been widely carried out in various cities in China. Based on the present situation of utility tunnel layout at home and abroad,and according to the characteristics and attributes of each pipeline,four internal factors that influenced the safe distance between pipelines in the utility tunnel are analyzed quantitatively and qualitatively： that is diameter,pressure,material of pipeline and transmission medium degree of hazard in pipeline and so on. While the logical relationship between four factors and safety distance is analyzed. By combining the spatial interaction model and utilizing the Negative power-law curve of distance attenuation,this paper discusses the formula describing the safe distance between pipelines in the utility tunnel,and further apply it into the engineering practice of Huaguan Road,Qingdao to verity the applicability of this model. The results can be used as a reference that whether utility tunnel need to divide cabins or not,in order to optimize the cross section of utility tunnel.

关 键 词：综合管廊 空间作用模型 管线安全距离 相互影响强度 

分 类 号：TU924[建筑科学—建筑设计及理论]