论文部分内容阅读
针对目前边坡开挖研究中离心场开挖模拟技术的不足,在清华大学土工离心机上开发了一种可在离心模型试验过程中模拟边坡开挖的有效设备。该设备利用两个电机和滑轨模拟边坡开挖过程中的下切和推拉两个过程,结合现有的离心场图像采集和位移测量系统即可实现离心机运行过程中的实时开挖和多次开挖,并通过试验验证了该开挖设备的有效性和可靠性。利用该设备进行了土坡开挖的离心模型试验,再现并记录了边坡开挖后的变形破坏过程。
Aimed at the deficiency of simulation technology of centrifugal field excavation in slope excavation research, an effective device for simulating slope excavation in centrifugal model test was developed on the geocentrifuge of Tsinghua University. The device uses two motors and sliding rails to simulate the process of undercut and push-pull in the process of slope excavation. In combination with the existing centrifugal field image acquisition and displacement measurement system, real-time excavation and multi- Excavation, and verified the validity and reliability of the excavation equipment through experiments. Centrifuge model tests of soil excavation were carried out by using this equipment, and the deformation and failure process after slope excavation was reproduced and recorded.