某湿陷性黄土地区项目室外给水排水系统设计

Design of Outdoor Water Supply&Drainage System for Some Project in Collapsible Loess Area

为探讨地形复杂的湿陷性黄土地区室外给水排水系统的设计问题,通过对陕西省某文旅小镇项目室外给水排水系统的设计介绍,给出湿陷性黄土地区建设项目中可能遇到的特殊问题及解决方法。重点介绍自重湿陷性黄土地区的大型项目,有压管线系统宜设置综合管廊,或设置在综合管廊的设备夹层内;地下排水系统敷设在地下综合管廊内较为安全合理;寒冷地区因湿陷性黄土因素架空敷设的室外污水管线宜采用保温加电伴热自动控制其最小设计温度。因此,湿陷性黄土地区的室外给水排水系统设计,应根据项目特点及不同管线性质因地制宜地选择合适的设计方案。

To discuss the design of outdoor water supply&drainage system in collapsible loess area with complex terrain,it introduces the design of outdoor water supply&drainage system of a cultural tourism town project in Shaanxi Province,and gives the special problems&solutions that may be encountered in the construction project in collapsible loess area.It mainly introduces the large-scale projects in the self-weight collapsible loess area.The pressure pipeline system should be set up in the utility tunnel or in the equipment mezzanine of the utility tunnel.It is safe&reasonable for the underground drainage system to be laid in the underground utility tunnel.Outdoor sewage pipelines laid overhead due to collapsible loess in cold areas should adopt thermal insulation and electric heating to automatically control their minimum design temperature.Therefore,the design of outdoor water supply&drainage system in collapsible loess area should be based on the characteristics of the project and the nature of different pipelines to select appropriate design schemes according to local conditions.