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The construction of the Steel Suspension Box Cofferdam (SSBC) is an important procedure for constructing the pile cap. In this paper, a safety analysis is carried out based on the construction of Chongqi Yangtze River bridge primary NO.2 pier SSBC. First, all calculation construction conditions and the corresponding loads are clarified. Second, with the use of ANSYS finite element analysis software,...
In this paper, we aim at obtaining the deformation law and the mechanics characteristic of the supporting structure of ∞-Shaped super deep foundation pit, including the deformation law and the plastic zone of the soil outside the structure. Based on the example of ∞-Shaped super deep foundation pit for South Anchor of the Fourth Nanjing Yangtze River Bridge construction, the full three-dimensional...
In order to avoid earthwork imbalance and relevant destroy on airfield surroundings, the influencing factors and adjusting method on how to control airfield earthwork balance was studied. According to analysis on method and result of geological reconnaissance, computing method of excavation and filling amount of earth, and quality control in construction procedure, the reason how airfield earthwork...
An adaptive Predicted Mean Vote model of thermal comfort based on “Black Box” theory is proposed, which takes into account factors such as culture, indoor climate, social, physiological, psychological and behavioral adaptations, which have an impact on the senses used to detect thermal comfort. By applying the cybernetics concept, the aPMV model shows that the Predicted Mean Vote (PMV) is greater...
Shafts are channels linking the surface part and underground part of mines or hydropower stations, while the numerical simulation of super-deep shafts under construction is scarcely done. In order to promote the construction technology of shafts, a three dimensional FE analysis with surveillance records verification is carried out to simulate the full process of construction to analyze the stress...
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