盾构掘进数字化实验平台研究与应用

Research and Application of a Digital Experimental Platform for Shield Tunnelling

针对数字化实验技术在我国盾构装备设计与施工管理过程中应用不足的现状,文章以开发盾构掘进数字化实验平台为出发点,在论述盾构掘进数字化实验技术重难点及其研究现状的基础上,对其所涉及的参数化地质力学建模、参数化刀盘刀具建模与分析、盾构掘进总载荷分析、界面支护力与岩土变形分析、刀盘系统掘进过程全物理数字化仿真等五大关键技术进行了系统分析。最后,结合工程实例对比分析数字化实验结果与工程实测数据,验证了模型的科学性与合理性,能够为盾构设计、制造及施工提供参考。

In light of the inadequate application of digital experimental techniques in China′s shield design andconstruction management, and in order to develop a digital experimental platform for shield tunnelling, a systemanalysis was carried out for the five key techniques involved（i.e., geomechanics parametric modeling, parametricmodeling and analysis of cutters and the cutterhead, total load analysis for shield tunnelling, analysis of interfacesupport force and rock-soil deformation and physical digital simulation of the cutterhead driving process） based onthe key and challenging points as well as the research status regarding digital experimental techniques. This paperalso verifies the scientificity and rationality of this model by comparing the calculated and measured results basedon one project case and provides a reference for the design, manufacture and construction of shield machines.