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1·Backfilling, ensure no groove before in the water.

回填前，确保沟槽内无积水。

2·The backfilling cost is high if cement is used as a cemented material.

采用水泥作为矿山充填胶结材料，充填成本高。

3·Therefore, the upward drift stoping with backfilling is decided to use.

为此决定采用上向进路充填法进行回采。

4·The gravel is one of the most common materials for abutment backfilling.

砂砾是台背回填工程常用的回填材料之一。

5·Not backfilling silt, corruption and graft, permafrost soil organic matter.

不得回填淤泥、腐植土、冻土及有机物质。

6·Please clearly indicate the final clearance area and backfilling area for the foundation.

请明确基础的最终清理范围及回填范围。

7·For the safety of mining underground, the tailings must be solidified before backfilling.

为了保证地下采矿的安全，尾砂须先固化后充填。

8·In recent years, whole tailings backfilling has become the main development trend for underground mining.

近年来，全尾砂充填已成为地下采矿主要的发展趋势。

9·Through the experiments, the mixture ratio of cemented crushed stone backfilling materials was optimized.

通过试验，优化了碎石胶结充填料配比。

10·Whether you're digging, trenching, backfilling or handling material, the Backhoe Loader will meet your needs.

不论您是需要挖掘，开渠，回填还是处理材料。我们的反铲装载机均可以满足您的应用需求。

回填

1·Its capacity of resisting large external load enables it not to rely on lateral support of the soil, therefore its requirements on backfilling soil is lower than on flexible tubes.

由于它本身能抵抗较大的外荷载，使其不须依赖土壤的侧向支撑，因而对回填土要求较柔性管低。

2·Consequently the bedding and backfilling of the trench need special attention to provide the required lateral support.

其后，管道沟的垫土和回填需要特别注意，应提供所需要的水平支撑。

3·Based on shield construction in Guangzhou Metro and Shenzhen Metro, an introduction is given to various types of backfilling grouting behind segment, and a comparison was made.

结合广州地铁和深圳地铁的盾构工程实例，介绍盾构施工中的管片壁后回填注浆的多种类型并作了比较分析。

4·At the same time, liquid coal ash is used in backfilling of abutment, so as to reduce the load and basic stress, reduce settlement and increase the dense of fillings.

同时，为降低桥头地基的荷载和基础应力，减少沉降并增加填料的密实度，台背回填采用液态粉煤灰填筑。

5·However, in large open pits, traditional methods such as planting, slope cutting and backfilling are not suitable for restoring the ecological environment.

对于在生产、规模较大的露天采场，不能采用削坡回填、覆土种植等简单的传统方法恢复矿山生态环境。

(1)backfill material回填物料；填充料