1. Short construction period

The reinforcement and reconstruction of old factory construction tend to be strictly limited, generally the workshop are high output production tasks need to retrofit, can not stop when strengthening the old plant, that is reinforcement and production are carried out simultaneously. Even if stop production, the production time is very short, generally not more than a month, therefore short terms is an important factor for the renovation of the plant.

2. Many obstacles of strengthening design 

The original plant reinforcement of old equipment foundation of old pipeline equipment crane even products such as facilities, equipment and many products can not move, the construction of various types of objects often meet each other, so the design and construction of several times before further carefully to the scene observation records find feasible reinforcement design and reinforcement.

3. More difficulty in construction

There will be three dimensional crossover operations and parallel flow operations among all kinds of professional works, and there will be workers in the workshop. The working face is narrow, the operation space is tight, and the construction is very difficult.

4. High security requirements

If the building can not be stopped, the construction and production are carried out at the same time. The production equipment and products in the workshop have many valuable and precise equipment, so we must pay attention to fire protection and falling objects in the construction, so as to protect the safety of the equipment and personnel.