backfiller

Application of Lime-flyash Material to Backfilling Approach Embankment;

石灰粉煤灰在台背回填中的应用研究

Study on Properties and Application of Fly Ash Backfill;

粉煤灰回填材料性能与应用研究

Experimental study on durability of shell sand backfill;

回填贝壳砂耐久性试验研究

Study on the kind of filling and disposing the back of abutment;

台背处理及回填类型研讨

Construction Control Me-thod for Backfilling on the Culvert Top of Village Roads;

农村公路涵背回填施工控制方法

The application of fly-ash for backfilling in retaining wall.;

粉煤灰在挡墙回填方面的应用

Based on constructing experience of backfilling foundation pit and back of bridge abutment in Hebei section of Qingdao-Yinchuan expressway,the construction technology,allocation of the mechanical equipment and construction technique of fluidized fly ash in backfilling foundation pit and back of bridge abutment are discussed.

阐述了流态粉煤灰的作用机理,并以青银高速公路河北段结构物基坑与台背回填为背景,探讨了流态粉煤灰在基坑与台背回填中的施工工艺、机械设备配备和施工技术。

Analiysising to physical mechanics property,particle composition,chemical analysis of iron tailings,theoretical inference and necessary bench test and comercial test,the reliabitity has been proved by theoretical and practice on road surface material,insteading riversand concrete,and roadbase backfill material,as technology dates of application.

通过对铁尾矿物理力学性质、颗粒组成、化学成分分析、理论推断和必要的实验室及小规模工业试验,证明铁尾矿在路面材料、替代河砂混凝土和路基回填料等方面应用的可靠性和技术要求。