距离线 meaning in English
range line
Examples
- All the results can be utilized by engineers , during the designing and construction . the main conclusions are listed as follows : ( 1 ) based on the shortest line between weak interbed and limit of excavation and the location of point of intersection between limit of excavation , classification of weak interbed distribution is set up , and the distance of distribution is defined ; ( 2 ) according to the strength and deformation equivalent principle , influence zone of weak interbed is introduced , and a new method to simulating the weak interbed with thickness is built ; ( 3 ) some quantificational results on influence of weak interbed respectively at crown , right shoulder and right wall are summarized ; ( 4 ) some quantificational results on influence of weak interbed with the distance between weak interbed and limit of excavation 0 . 2d , 0 . 5d , l . od are gained ; ( 5 ) some quantificational results on influence of weak interbed in the rock mass with confining coefficient 0 . 38 , 1 . 0 , 1 . 5 , 2 . 0 , 3 . 0 are summed up ; ( 6 ) some quantificational results are summarized on influence of the underground surrounding rock mass stability with weak interbed , in the representational surrounding rock mass graded ii , iii , iv ; ( 7 ) according to the studying results some advices are suggested on designing of underground engineering
主要结论如下： ( 1 )以软弱夹层到开挖轮廓线最短距离和最短距离线与开挖轮廓线的交点位置为指标对软弱夹层的分布部进行了分类，并确定了软弱夹层分布距离； ( 2 )根据强度等效和变形等效的原则，引入了软弱夹层影响带的概念，建立了模拟软弱夹层厚度的一种新方法； ( 3 )总结出了软弱夹层分布在拱顶、右拱肩、右边墙时对地下洞室稳定性影响的量化指标； ( 4 )分析出了软弱夹层距开挖轮廓线0 . 2d 、 0 . 5d 、 1 . 0d三种情况对地下洞室稳定性影响的量化指标； ( 5 )总结出了在不同的侧压力系数( 0 . 38 、 1 . 0 、 1 . 5 、 2 . 0 、 3 . 0 )地应力场中软弱夹层对稳定性影响的量化指标； ( 6 )得出了在、 、代表性围岩中软弱夹层对稳定性影响量化结果； ( 7 )根据数值试验成果提出了在有软弱夹层围岩中地下洞室设计原则的几点新内容。