进行了过特厚粘土地层外层混凝土井壁施工安全技术研究。
The research of external concrete sidewall security technique in extra-thickness clay blanket is also gived in this paper.
营子闸交通桥是一座钢筋混凝土井柱桩式桥梁，桥梁状况较差。
The traffic bridge on the Yingzi Floodgate is a reinforced concrete well-pile bridge of poor safety.
目前，采用泵送法预制高强度混凝土井壁，在国内尚无成功的先例。
Currently, the method of prefabricating concrete high strength wall by pump transporting is still without successful precedent in our country.
深冻结井高强混凝土井壁作为一种施工方便、经济的井壁结构被广泛得到应用。
Due to its convenience and economical efficiency, the high-strength concrete shaft lining has been widely used in deep shaft sinking by freezing method.
利用地震振动台对大跨预应力混凝土井式梁空间框架结构的抗震性能进行了实验研究。
The shaking table test was conducted to gain an insight into the earthquake resistant performance of a large-span prestressed concrete grillage girder space frame structure.
王艳丽，张云龙，费以原钢筋混凝土井式梁在屋面和非承墙、板荷载的楼面结构多有出现。
Derrick-type reinforced concrete beam often appears in the framework of house walls and building walls that don't support the weight of walls, boards and so on.
裙房大跨度屋盖采用了后张有粘接预应力混凝土井字梁楼盖结构，设计时考虑了次弯矩的影响。
The post tensioned bonded prestressed square-crossing beams are applied in larger span roof design of podium, and secondary moments are considered in design.
他们的作业工具是：挖土用的手工泥铲、浇筑混凝土井壁用的胶合板模板、还有手工制作摇杆。摇杆将一个人送到井底，那个人就在井底一点点挖土然后再通过摇杆把沙子一桶桶送到地面。
They worked with hand trowels, a plywood form for lining the shaft with concrete, inch by inch, and a sturdy hand-built crank for lowering a man to the bottom and sending up buckets of sand.
他们的作业工具是：挖土用的手工泥铲、浇筑混凝土井壁用的胶合板模板、还有手工制作摇杆。摇杆将一个人送到井底，那个人就在井底一点点挖土然后再通过摇杆把沙子一桶桶送到地面。
They worked with hand trowels, a plywood form for lining the shaft with concrete, inch by inch, and a sturdy hand-built crank for lowering a man to the bottom and sending up buckets of sand.
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