摘要
根据天津地区的地理地质条件,天津中心庄路跨津滨高速上承式拱桥产生的水平推力需要通过设置在承台上的一组水平拉索进行平衡,为保证拉索不受外力作用,在拉索外设置钢套管,且要求精确定位。通过经济技术比选,采用水平定向钻机进行铺管作业,取得了较好的社会效益和经济效益,在工程实践中极具推广价值。
According to the geography geology condition of Tianjin area ,the horizontal thrust which the deck arched bridge of ZhongrSnzhuang road in Tianjin above Jinbin expressway produces, needs to balance by a group of horizontal guys set in pile caps. To guarantee them against exogenous action, the steel sleeves must be installed outside the guys with aeeurate location .Through economic and technical comparison ,it can obtain good social and economic benefits, and extremely has promoting value in projects to use the horizontal directional driller to carry out the pipelaying work.
出处
《安徽建筑》
2006年第2期96-99,共4页
Anhui Architecture
关键词
水平定向钻机
铺管作业
精确定位
horizontal directional driller
pipelaying work
accurate locating
