扣件式钢管支架在湿陷性黄土基坑群开挖支护中的应用  

Application of Fastener-style Steel Pipe Scaffold as Support for Foundation Excavation in Collapsible Loess Areas

作　　者：惠渊峰 梅源[2] 胡长明[2] 

机构地区：[1]陕西省建筑职工大学建筑工程系,陕西西安710068 [2]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《施工技术》2013年第11期24-26,共3页Construction Technology

基　　金：国家自然科学基金项目(50978289);陕西省教育厅专项科研计划项目(12JK0898)

摘　　要：以湿陷性黄土地区某集中供热项目管网工程施工为背景,介绍了扣件式钢管支架作为检查井基坑群支护体系的方案设计、安全性验算及施工要求。实践表明,由于黄土基坑稳定性好,因而可以采用扣件式钢管支架作为黄土地区深度<10m的基坑群开挖支护体系。扣件式钢管支护体系具有搭设灵活、施工速度快、能够较好适应基坑群尺寸多变的特点,且能够节约成本,保证施工安全。Based on a central heating pipe network project,this paper introduces the scheme design,safety assessment and construction requirement for the application of fastener-style steel pipe scaffold as support for inspection pits in collapsible loess areas.Practice shows that fastener-style steel pipe scaffolds can be used as supporting framework for excavations under 10m in loess areas because the loess pits have good stability.Fastener-style steel pipe scaffold is featured by flexibility and fast construction,which can adapt to frequent change of the pit dimensions,reduce the cost and ensure construction safety.

关 键 词：脚手架 扣件式钢管支架 湿陷性黄土 基坑 支护 施工技术 

分 类 号：TU731.2[建筑科学—建筑技术科学]