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为深入了解土工格室碎石基层上刚性路面的受力变形性能和破坏机理,在以往工作的基础上开展了进一步的模型试验,分别研究了该结构在静荷载作用下的荷载位移曲线和动荷载下的破坏模式,并且模拟了基层下土体被掏空时的工作情况,获得了大量的试验数据,试验结果表明该处治方法可大大提高路面整体的受力性能,加强路面板的协同工作能力,有效扩散上部荷载,从而可有效增大刚性路面板的破坏荷载,并且可以保证在严重板底脱空情况下的工作性能,将有效减少错台、唧泥等现象的发生。土工格室的加入使得碎石基层具有了半刚性基层的作用与功能,为长寿命水泥路面结构优化研究提供了一条新的思路。
In order to understand deeply the deformation and failure mechanism of rigid pavement on geocell macadam base, further model tests were carried out on the basis of the previous work, and the load displacement curves and dynamic behaviors of the structure under static load were studied respectively The results show that the treatment method can greatly improve the overall performance of the pavement and enhance the coordination work of pavement slabs Ability to effectively disperse the upper load, which can effectively increase the failure load of rigid pavement slabs, and can guarantee the working performance under the condition of severe slab void, which will effectively reduce the occurrence of faulty muds and muds. The addition of geocell makes the gravel base has the function and function of semi-rigid base, which provides a new idea for the optimization of long-life cement pavement structure.