1·An analysis study was conducted on the strength and safety of the backfill material based on the engineering mechanics.
并基于工程力学对充填体强度及其安全性进行了分析研究。
2·According to the research, the natural graded gravel is the best backfill material of graded crushed stone, grit, lime stabilized soil and rock chips.
研究表明，在连续级配碎石、砂砾、石灰稳定土、石屑几种回填材料中以自然级配砂砾石为最佳台背回填材料。
3·This paper studied the mechanical properties, expansion and contraction and road performance of backfill material made by waste gypsum from TiO 2 production and fly ash.
通过对钛石膏-粉煤灰复合路基回填材料的物理力学性能、胀缩性及路用工程性能的试验研究，探索了钛石膏-粉煤灰回填材料的工程性质和性能。
4·The present situation of the sandpit backfill in Beijing has been introduced, and the pollution characteristics of the backfill material have been analyzed in this paper.
本文介绍了北京砂石坑回填现状，分析了回填物的污染组分特征。
5·The quality control aims to make backfill body meet its strength requirements and allow backfill material to have a low lost and a good fluidity and dehydrate a little or not.
填充体质量控制的目标是：填充体具有一定强度、充填材料成本低、流动性好、不脱水或少量脱水。
6·Successful practice shows the application of such backfill material to abandoned roadway is a good solution to ensure the working face pass through abandoned roadway quickly, sa...
实践证明，采用高水速凝材料充填空巷是综放工作面快速、安全、经济地推过空巷的有效途径。
7·Lime-fly ash loess, composed of fly ash, lime and loess, is a new material in subgrade backfill to take the place of the (traditional) lime soil.
二灰黄土是利用石灰、粉煤灰与土料混合作为回填土的一种新型材料，用以代替传统的灰土或素填土。
8·Secondly, models with different backfill-material such as argil fly-ash concrete, soil, sand, grit and lime-stabilized soil were experimented.
其次，进行了陶粒粉煤灰混凝土、粘性土、风积砂、砂砾和石灰土等几种材料的台背回填离心模型试验。
9·On the basis of the uniaxial SHPB experiments, the typical impact waves are obtained about the high water material solidifying backfill body.
在高水固结充填体单轴SHPB 冲击实验的基础上， 得出了充填体的的典型冲击波形；