
2017年4月下第46卷第8期
D0I:10. 7672/sgjs2017080049
施工技术
CONSTRUCTION TECHNOLOGY
浅埋暗挖法在雨水调蓄系统建设中的应用
解晓忧,王东清,宋晓龙
100088)
(北京城建集团有限贵任公司土本工程总承包部,北京
【摘要】近年来随着我国城市基础设施建设的不断提速,施工技术的综合运用水平也取得了飞速发展。目前北京市区建筑林立、路网密布,交通流量与日俱增,传统的明挖技术受到了地域环境的严重制约,非开挖技术由于自身的较大优势逐渐取得了很大的市场占有率。在建设过程中不断探索优化竖井结构、调番池一次和二次衬翻断面形
式、支撑体系转换等关键技术,形成了一套较完备的南水调荐池浅埋暗挖综合施工技术。[关键调】地下工程;浅理埋暗挖法;调蓄池;施工技术;应用
【中图分类号】TU992
【文献标识码】A
【文章编号】1002-8498(2017)08-0049-03
ApplicationofShallowBuriedCoveredExcavationinthe
ConstructionofRainwaterStorageSystem XIE Xiaochen,WANG Dongqing,SONG Xiaolong
(Cieil Engineering General Contracting Department,Beijing Urban Construction Group Co. ,Lad. ,Beijing 100088, China) Abstract: With the rapid development of urban infrastructure construction in our country, the comprehensive utilization level of construction technology has also made rapid development. At present, the buildings are built greatly, road network distributes intensively, traffic flow increases with each passing day, the traditional digging technology has been severely restricted by the regional environment, and the trenchless technology has made a great market share because of its own advantages. In the construction process to continuously explore the key technologies of the optimization of shaft structure, storage tank once and secondary lining section, support system conversion, a complete set of rainwater storage tanks shallow comprehensive construction technology formed.
Key words:underground; shallow buried excavation; storage tant; construction; application
0引言
北京市政府拟定了《北京城区雨水泵站系统升级改造及雨洪控制利用三年工作计划(2012一2014 年)》,分三期完成北京市下凹式立交桥的提标改造工作。我集团累计参与建设41项,修建大型雨水调蓄池共计33座,其中浅埋暗挖法调蓄池22座,累计蓄水量达到约6.7万m,如折算成3m×3m标准断面,浅埋暗挖累计里程达到约9.5km。本文以较典型的小红门桥区积水治理工程为例,浅谈浅理暗挖工法在雨水调蓄建设中的应用情况。
1案例分析 1.1工程概况
小红门桥区积水治理工程位于小红门路与南四环路交汇处西南侧。现况泵站内场地空间极有【作者简介】解晓忧,工程师,E-mail;415246173@qq.com
【收稿日期】2016-04-18 万方数据
49
限,如在泵站南侧进行土地征用,将涉及大量的拆迁项目(如绿化带、树木、道路等),为确保按期达到泵站设计使用功能,最终方案确定为在现况泵站内设置竖井,向南开挖调蓄池(见图1)。
山
雨水泵站调蓄池整井暗挖雨水调蓄池
图1调蓄池与泵站相对位置关系 Fig.1The relative position between the storage tank and pump station
本次实施的暗挖调蓄池长度为48.5m,覆土深度