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.
出处
《土工基础》
1996年第4期36-40,49,共6页
Soil Engineering and Foundation
关键词
控制爆破
沉井
混凝土筒体
controlled blastings
open caisson
cylinder of concrete
