控制爆破沉井与工程实例  

Controlled Blasting Open Caisson and Case Study

作　　者：吴绵拔[1] 杨传嘉[1] 

机构地区：[1]中国科学院武汉岩土力学研究所

出　　处：《土工基础》1996年第4期36-40,49,共6页Soil Engineering and Foundation

摘　　要：详述在不良基岩进行控制爆破沉井的基本原理和方法。并介绍一个内径为１．７４ｍ，外径１９．６ｍ，高１５ｍ的钢筋砼筒体，在较为破碎的基岩上，经１１次控制爆破沉井，使筒体下沉１２．７ｍ且安全、准确到位的实例。这表明控制爆破沉井是一种快速、安全可靠的沉井方法。Focused on the basic principles and methods of Controlled Blasting Open Caisson(CBOC) on weak rock mass, a case study is shown in the paper. A rein-forced concrete cylinder with 17. 5 meters of inier and 19. 6m of outer diameter. 15 meters high and about 23,000kN in weight, is successfully settled down to the right location for 12.75m through the fractured rock mass by the method of CBOC, which is desired using it for 11 times. This is shown that CBOC is one of the fast, safe and reliable methods in the installation of caisson.

关 键 词：控制爆破 沉井 混凝土筒体 

分 类 号：TU473.2[建筑科学—结构工程]