本文介绍了钢筋混凝土预制方桩制作过程各工序的质量控制，对同类工程的施工有一定的借鉴。
但由于其构件形式的多样，加之施工控制的不规范，这些板梁在预制阶段或使用中出现了各种问题。
1·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 introduces quality control technologies for concreting work, curing of beams, stretching and pressure grouting in the course of bridge precasting in the frigid plateau region.
介绍了高原高寒地区预制桥梁施工过程中混凝土施工、梁体养护、张拉压浆等的质量控制技术。
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.
文中获得的一些结论和建议，对在铁路隧道中推广预制技术是有益的。
4·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。
5·With the example of replacement for the bow "HUI XING", this paper introduces how to shorten repair period and raise efficiency by precasting large parts of projection and sectional hoisting.
文中以“汇兴”轮的整个船艏换新为例 ，介绍通过预制大型分段进行吊装来缩短修复周期 ，提高修船效率。