CAJ | 학술논문

针对传统的重整化群方法不适合处理一般水工混凝土结构的问题，以正方体单元岩石破碎模型为基础，提出并建立了基于重整化群方法的三棱柱单元混凝土结构整体破坏概率模型，通过不动点计算分析，得到导致结构整体破坏的单元破坏概率临界值。迭代计算结果表明，原胞级数即迭代次数取3即可满足实际工程需要，若3次迭代后整体破坏概率仍较大，则说明单元破坏概率接近临界值，该概率模型可从定量的角度评价混凝土重力坝的整体安全性。
침대전통적중정화군방법불괄합처리일반수공혼응토결구적문제，이정방체단원암석파쇄모형위기출，제출병건립료기우중정화군방법적삼릉주단원혼응토결구정체파배개솔모형，통과불동점계산분석，득도도치결구정체파배적단원파배개솔림계치。질대계산결과표명，원포급수즉질대차수취3즉가만족실제공정수요，약3차질대후정체파배개솔잉교대，칙설명단원파배개솔접근림계치，해개솔모형가종정량적각도평개혼응토중력패적정체안전성。
The breakage of cube rock can be dealt from the renormalization group method. In general, the form of hydraulic concrete structure is not of the shape of a cube. Therefore, based on the model of cube rock breakage, a model of overall damage probability of triangular prism unit based on renormalization group method was established. The critical value of unit damage probability leading to the overall damage of structure was obtained by analyzing and calculating the fixed point. The results of iterative calculation show that when the number of times of iterative calculation is three,it can satisfy the need of practical engineering. If the probability of overall damage is still great after the third iteration, the unit damage probability is close to the critical value. The model of probability established in this paper can quantitatively evaluate the overall safety of concrete gravity dam.