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高速铁路简支箱梁施工有架桥机架设、膺架法现浇、造桥机(现浇)施工等几种施工技术方案。经过技术经济比选,得到以下结论:1)在不考虑前期投入的情况下,架桥机架设简支箱梁费用最省,工期最省,且施工质量最能得到保证,此施工方案应优先选用;2)造桥机(现浇)与脚架法现浇相比,在扣除造桥机拼装费用后,造价基本相当,但工期略省,且在质量控制方面略优。
Construction of high-speed railway with simple box girder construction of bridge frame, casting method of cast-in-place, bridge construction (cast-in-place) construction and several other construction technology programs. After technical and economic comparison, the following conclusions can be obtained: 1) Without considering the prior investment, the cost of constructing the simple support girder with bridging frame is the lowest, the construction period is the most province, and the construction quality can be guaranteed the best, the construction scheme should be prioritized Selection; 2) bridge machine (cast) compared with the cast-in-place method, after deducting the cost of assembling the bridge machine, the cost is basically the same, but the construction period is slightly less, and the quality control is slightly superior.