TangTiantian.Layout and Excavation Design of a Fully Underground Sewage Treatment Plant in Sanya[J].China Water & Wastewater,2026,42(16):76-81.
三亚某全地下式污水处理厂平面布置及基坑设计
- Title:
- Layout and Excavation Design of a Fully Underground Sewage Treatment Plant in Sanya
- Keywords:
- fully underground sewage treatment plant; layout; excavation design; fire compartment; prefabricated design; BIM technology; multi-disciplinary collaboration
- 摘要:
- 为缓解三亚市现有污水处理能力与中心城区人口增长之间的矛盾，本项目于城市核心区域建设三亚市首座全地下式污水处理厂。工程分近远期实施，近期处理规模5.0万m3/d，远期提升至10.0万m3/d。通过合理的平面布置降低工程造价，并确定三亚地区全地下污水处理厂防火分区的设计原则。在基坑设计方面，针对滨海区域砂土地质及高地下水位的特点，选用二次高压旋喷注浆预应力锚索与钻孔灌注桩相结合的基坑围护体系，并通过护坡、坡顶止水帷幕等措施应对极端降雨天气。此外，项目还应用了装配式设计与建筑信息模型（BIM）技术：采用叠合构件提高预制结构的整体性，大幅减少现场模板用量，降低施工对环境的影响；依托BIM三维可视化模型实现多专业协同，提升施工效率，降低项目风险。本项目的实施为同类地质条件及空间限制下的全地下式污水处理厂建设提供了可借鉴的设计经验与实践参考。
- Abstract:
- To alleviate the contradiction between the existing sewage treatment capacity and the population growth in the central urban area of Sanya, the first fully underground sewage treatment plant was constructed in the core urban zone of Sanya. The project is being implemented in two phases, with an initial treatment capacity of 50 000 m3/d and a long-term capacity of 100 000 m3/d. Through a well-planned layout, the construction cost was effectively optimized, and the fire compartment design principles for fully underground sewage treatment plants in Sanya were established. In terms of excavation design, given the sandy soil conditions and high groundwater levels in coastal areas, an excavation support system combining secondary high-pressure rotary jet grouting prestressed anchors with bored piles was adopted. Additionally, measures such as slope protection and waterproof curtains at the slope crest were implemented to cope with extreme rainfall events. Furthermore, prefabricated design and BIM technology were applied in this project. The use of composite components enhanced the integrity of the prefabricated structure,significantly reduced on-site formwork usage, and minimized environmental pollution during construction. The BIM-based 3D visualization model facilitated multi-disciplinary collaboration, improved construction efficiency, and reduced project risks. This project provides valuable design experience and practical references for the construction of fully underground sewage treatment plants under similar geological conditions and space constraints.
相似文献/References:
[1]周建忠,胡晓,王麒麟,等.多段多级AO工艺用于全地下式陡沟河污水处理厂二厂[J].中国给水排水,2022,38(20):48.
ZHOUJian-zhong,HUXiao,WANGQi-lin,et al.Application of Multi-stage AO Process in Dougouhe No.2 Underground Wastewater Treatment Plant[J].China Water & Wastewater,2022,38(16):48.
[2]郑玢,杨涛,何帅.全地下式污水处理厂地下箱体室内消火栓设计探讨[J].中国给水排水,2023,39(18):84.
ZHENGBin,YANGTao,HEShuai.Discussion on the Design of Indoor Fire Hydrant in Underground Structural Box of Underground Wastewater Treatment Plant[J].China Water & Wastewater,2023,39(16):84.
[3]杜立刚,石亚军,吴志高,等.全地下式污水处理厂站防淹方法及应用实例[J].中国给水排水,2024,40(20):59.
DULi-gang,SHIYa-jun,WUZhi-gao,et al.Flood Prevention Design Method and Application Case of Underground Sewage Treatment Plant （Station）[J].China Water & Wastewater,2024,40(16):59.