Механические свойства опор подводных тоннелей в зоне разломов Mechanical Properties of Support Form for Fault Fracture Zone in Subsea Tunnel

Yiguo Xue, Binghua Zhou, Zhidong Wu, Haidong Gao, Daohong Qiu, Gang Li, Kang Fu

Аннотация


Зоны разлома являются основной проблемой при строительстве подводных тоннелей. Низкая прочность массива, слабая самостабилизация разрушенной окружающей породы и сложные геологические условия могут легко вызвать геологические катастрофы, такие как обвалы и значительное проникновение воды во время строительства. В работе предложена модель разломного слоя и тоннеля, а также смоделированы проходческие работы на участке, включающем зону разлома с учетом предварительно разработанных методов устройства опор для подводного тоннеля Xiamen Haicang. С целью оптимизации конструкции опор тоннеля, используя численное моделирование, сравниваются характеристики пластической зоны, деформации и распределение напряжений породы, окружающей тоннель.


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