分别研究了钢筋混凝土桥梁在整体腐蚀和局部腐蚀同裂缝扩展的组合效应下截面刚度与服役时间关系。
The paper studies the relation between the section rigidity and the service time of the RC bridge under the composite effect of the expansion of cracks and the whole or local corrosion.
裂隙中的粘土充填物在地下水物理、化学的作用下，力学性能不断弱化，使岩体裂隙的临界应力强度因子不断降低，裂隙扩展具有时间效应，导致底板裂隙的滞后突水。
The mechanic capability of the crevice clay filling falls because the physiology and chemistry of the groundwater, which lags the crevice spreading and leads to the lagging floor water bursting.
亚临界裂纹扩展是岩体工程破坏时间效应的原因之一。
Subcritical crack growth is one of the main causes of time-induced failure in rock engineering.
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