Some problems such as concrete cracking, bigger deflection of span and abandoned beams caused by construction quality have appeared in the completed prestressed concrete voided slab Bridges.
在已建设的众多预应力混凝土空心板桥梁中，存在出现混凝土裂缝、跨中挠度过大及因施工质量问题而造成废梁等问题。
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。
Rotary grouting method for foundation consolidation under the runway beams of container storage yard is characterized with good reliability, high quality and little sedimentation after construction.
旋喷注浆法加固集装箱堆场跑道梁具有可靠性好，质量高，工后沉降量小的特点。
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