【摘要】 为提高粉质黏土暗挖施工中地表沉降预测的精确性与计算速度,基于Peck公式计算原理,提出了预测地表沉降的二维形态修正公式,将对地铁隧道断面各点的沉降量计算转换为对若干参数的率定,大幅提高了计算效率.最后,选择厦门市轨道交通某地铁站工程作为实例工程进行了验证.结果表明:修正Peck公式计算精度较高,可在类似工程中应用推广.更多还原

【Abstract】 In the underground construction, in order to improve accuracy and computing speed in surface subsidence in silty clay and based on Peck formula, two-dimension shape correction formula for surface subsidence is proposed to convert the calculation of the settlement of each point in the section of subway tunnel into the calculation of several parameters, thus the computational efficiency is greatly improved. At last, a subway station project in Xiamen city is selected as a project to be verified. The results show that the proposed method can be used in similar projects.更多还原