桥涵的台背回填是一道至关重要的工序。
It is an important procedure of re-fill up at platform back in bridge opening.
砂砾是台背回填工程常用的回填材料之一。
The gravel is one of the most common materials for abutment backfilling.
高速公路构造物台背回填质量关系到高速公路整体质量。
The quality of freeway structure retailing backwall refilling concerns the freeway global quality.
桥涵台背回填，由于其位置特殊，往往辗压不实，发生沉降是一种常见病害。
The fill back of the bridge and culvert, because of its especial position, has compressed not very close-grained sometimes. The sinking is a familiar disease.
结合实际情况，提出了较好的桥头搭板的设置方案及台背回填应注意的几个问题，供设计施工参考。
Based on actual conditions, the paper proposes better designing of transition slabs and problems in abutment backfilling for reference of the construction of the same kind.
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。
Secondly, models with different backfill-material such as argil fly-ash concrete, soil, sand, grit and lime-stabilized soil were experimented.
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。
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.
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。
According to the research, the natural graded gravel is the best backfill material of graded crushed stone, grit, lime stabilized soil and rock chips.
介绍了采用10%水泥碎石稳定集料挤密桩加固已施工结束的台背回填土体的挤密原理、设计方案、施工要求及质量控制。
The compaction principle, design scheme, construction demand and quality control of bridge abutment backfill reinforcement using compaction piles that are stabilized with10%cement are introduced.
一条公路的建设或某个项目的实施，都可能由于台背回填不理想而给公路带来意想不到的破坏，因此必须重视台背回填工作。
If it did not too good, it would bring the highway construction or items some un-expect wrecks. So, we must pay more attention to the working procedure in filling up back.
针对公路工程中的桥涵结构物台背回填从材料选择、回填范围、回填顺序及回填工艺、质量控制等方面进行论述，并说明台背回填重要性。
This paper specified the material filling, range filling, sequence construct technique, and quality control on back - filling at abutment , and the importance of it.
冲夯机适用于公路建造中台背处回填土砂石压实；
HCR Tamping rammer, is used to compact the gravel, sand in road construction;
冲夯机适用于公路建造中台背处回填土砂石压实；
HCR Tamping rammer, is used to compact the gravel, sand in road construction;
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