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Seamless construction method for super-long and super-thick mass concrete
The invention discloses a super-long and super-thick mass concrete seamless construction method, and relates to the technical field of seamless construction, and the method comprises the following steps: S1, carrying out an expansion ratio mix proportion test: calculating a final deformation rate under the combined action of internal and external temperature difference, shrinkage deformation caused by dry shrinkage and a compensation expansion effect through concrete mix proportion design, and S2, crack checking calculation: when the final deformation rate is compared with the ultimate elongation capable of being borne by the concrete, if the final deformation rate under the comprehensive action is smaller than the ultimate elongation of the concrete, it is deduced that the concrete is safe and does not crack, if checking calculation is not qualified, the step S1 is repeated, and if checking calculation is qualified, the step S3 is executed. The feasibility of the concrete mix proportion can be verified through the expansion ratio mix proportion test, that is, the reasonable proportion of each component in the concrete is determined, and the expansion performance of the concrete under different mix proportions can be evaluated through the test, so that the optimal mix proportion scheme is selected.
本发明公开了一种超长超厚大体积混凝土无缝施工方法，涉及无缝施工技术领域，包括以下步骤：S1、进行膨胀率配合比试验：通过混凝土配合比设计、计算内外温差、干缩引起的收缩变形以及补偿膨胀效应综合作用下的最终变形率，S2、裂缝验算：将最终变形率与混凝土自身所能承受的极限延伸率进行比较时，若综合作用下的最终变形率小于混凝土的极限延伸率，则推断混凝土是安全的且不会发生裂缝，若验算不合格，则重复进行步骤S1，若验算合格，则进行步骤S3。本发明通过膨胀率配合比试验可以验证混凝土配合比的可行性，即确定混凝土中各成分的合理比例，通过试验可以评估不同配合比下混凝土的膨胀性能，从而选择最佳的配合比方案。
Seamless construction method for super-long and super-thick mass concrete
The invention discloses a super-long and super-thick mass concrete seamless construction method, and relates to the technical field of seamless construction, and the method comprises the following steps: S1, carrying out an expansion ratio mix proportion test: calculating a final deformation rate under the combined action of internal and external temperature difference, shrinkage deformation caused by dry shrinkage and a compensation expansion effect through concrete mix proportion design, and S2, crack checking calculation: when the final deformation rate is compared with the ultimate elongation capable of being borne by the concrete, if the final deformation rate under the comprehensive action is smaller than the ultimate elongation of the concrete, it is deduced that the concrete is safe and does not crack, if checking calculation is not qualified, the step S1 is repeated, and if checking calculation is qualified, the step S3 is executed. The feasibility of the concrete mix proportion can be verified through the expansion ratio mix proportion test, that is, the reasonable proportion of each component in the concrete is determined, and the expansion performance of the concrete under different mix proportions can be evaluated through the test, so that the optimal mix proportion scheme is selected.
本发明公开了一种超长超厚大体积混凝土无缝施工方法，涉及无缝施工技术领域，包括以下步骤：S1、进行膨胀率配合比试验：通过混凝土配合比设计、计算内外温差、干缩引起的收缩变形以及补偿膨胀效应综合作用下的最终变形率，S2、裂缝验算：将最终变形率与混凝土自身所能承受的极限延伸率进行比较时，若综合作用下的最终变形率小于混凝土的极限延伸率，则推断混凝土是安全的且不会发生裂缝，若验算不合格，则重复进行步骤S1，若验算合格，则进行步骤S3。本发明通过膨胀率配合比试验可以验证混凝土配合比的可行性，即确定混凝土中各成分的合理比例，通过试验可以评估不同配合比下混凝土的膨胀性能，从而选择最佳的配合比方案。
Seamless construction method for super-long and super-thick mass concrete
一种超长超厚大体积混凝土无缝施工方法
CAI JUN (author) / LIU YUNPENG (author) / WU XINPING (author) / LI NA (author) / CAO YANSONG (author)
2023-12-05
Patent
Electronic Resource
Chinese
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