古洞口工程坝体填筑料一次成型上坝技术研究

针对开采条件恶劣的5#料场，提出了几种开采方案进行分析比选，由于采用最优开采方案——坝体填筑料一次成型上坝施工技术，不仅解决了施工中存在的多种问题，满足了施工需要，而且缩短了工期、节省了投资、获得了较好的经济效益，同时，还对该方案的开采爆破进行了设计。对于拟定的爆破经验参数，通过爆破试验进行了验证，两者吻合较好，并比计算参数略偏保守，实践表明，该技术在古洞口工程上的应用获得了成功，值得推广。

Research on Technique of Digging Rock as Filling-Stuff for Embankment with One-Step Forming Embankment at Gudongkou Hydroelectric Project

In allusion to zone of rock material No. 5, a few schemes of the rock mining were brought forward in order to make analysis and contrast and choice. Because the best scheme of the rock mining is adopted, namely the construction technique of digging rock as filling-stuff for embankment is with one-step forming to fit the criterion of filling embankment; not only much existent problem were resolved during construction, and satisfied construction demands, but also the construction period was shortened; and the investment was saved;and better economic benefit is obtained. At the same time, the mining and demolishing for this construction scheme has been designed yet. Empirical parameters of the dynamite for the imagining were validated by demolishing trial, both are better inosculated, and these are slightly much more than calculating parameters. The practice proves that the application of this technology to the project is successful and will be spreaded.