河道整治中关于水下爆破相关工艺及其造价的研究与推广

Research on Technique and Cost of Sub-explode in Realignment of Rivers

经对横山、毛山、吴沈门、小东山、枯柏树等五个试验河段的科学实践,研制成功了一套适用于5 m内深以下的升降式浮筒型水上钻孔作业平台和配套的清碴、运碴的作业船只;提出了一整套适用于我国东部沿海和长三角地区平原河道水下钻孔爆破的施工工艺和作业指导书;通过对不同岩质河段实际发生的各种主要施工成本、造价参数进行分析验算后,成功地引入了综合难度系数的概念,大大简化了造价分析和有关计算程序,填补了国内水利工程概算水下钻孔爆破部分的缺失和空白.

The article introduces a set of comprehensive constructing techniques and assignment guiding on plain channel sub-explode in Changjiang Delta and Eastern China, with 5-metre hoistable floating borehole sub-explode platform and corresponding purging and transferring boats as well. It puts forward the conception of comprehensive difficulty index to simples the process of cost analysis and calculation based on the constructing cost and index in different rocky channel such as Hengshan, Maoshan, Wushenmen, Xiaodongmen and Kubaishu.