梯段高度 meaning in English

stair rise
step height

Under the consideration of the engineering geological condition of dahuashui hydropower station , the pre - splitting blasting technology and reasonable construction method are adopted for the excavation of the dam foundation in accordance with the analysis on the rock strata therein , in which the design of the blasting parameters and powder charging structure as well as the angle control and the height of the excavating steps are particularly determined , and then better splitting effect is got for the slope excavation and the quality requirement of the construction is satisfied as well
摘要结合大花水水电站大坝工程地质条件，通过分析岩层具体情况，采用预裂爆破施工技术，合理施工方法进行坝基开挖，并对爆破参数和装药结构的设计，钻孔的角度控制和梯段高度精心确定，使该边坡开挖预裂取得良好的效果，保证了坝基开挖的质量要求。