The paper expounds the controlling methods of steam maintenance temperature for beam slab precasting.
就如何控制梁板预制的蒸气养护温度进行了阐述。
2
The paper analyzes the factors causing the cracks happened during highway culvert pipe precasting, and brings forward the control measures accordingly.
分析了公路涵管预制裂缝产生的因素，提出了相关的控制措施。
3
The results and suggestions concluded in this thesis, is good to promote the precasting technology in the design and construction works of railway tunnel.