论文部分内容阅读
4021大桥12号墩,位于某河主流,水流湍急,深8～9米,为该桥唯一的深水施工的桥墩。墩位处河床复盖层为沙夹卵石,最厚不到1米。基岩坚硬,极限强度1200～1300公斤/平方厘米,无风化层。在伟大领袖毛主席“破除迷信,解放思想”的教导指引下,工人、革命干部与革命技术人员一道,经过反复研究,提出了一个较好的施工方案(图1)。其要点是: (一)采用方形钢钣桩围堰,用8个中——60型浮鲸拼成方框,作为围堰内部支撑。 (二)把浮鲸当作平台,在其上拼起重塔
Pier 4021 Bridge, located in the mainstream of a river, fast-flowing, deep 8 ~ 9 meters, the only deep-water bridge pier construction. Sand at the pier bed cover sand pebbles, the thickest less than 1 meter. Bedrock hard, the ultimate strength of 1200 ~ 1300 kg / cm, no weathering layer. Under the guidance and guidance of Chairman Mao, the great leader, “to get rid of superstition and emancipate the mind,” workers and revolutionary cadres, together with revolutionary technicians, have come up with a good construction plan after repeated studies (Figure 1). The main points are: (A) the use of square steel sheet pile cofferdam, with 8 medium -60 type floating whale spell into a box, as a cofferdam internal support. (2) Use the floating whale as a platform on which to spell the heavy tower