论文部分内容阅读
路堤边坡的变形甚至破坏是山区公路建设和运营过程中面临的严峻问题,若能在路堤边坡破坏前进行方便、准确的预测和预报,则可以有效避免人员伤亡与财产损失。引入声发射技术进行路堤边坡稳定性监测,进行室内相似模拟试验,分析讨论了不同波导杆杆径与碎石粒径条件下的声发射特征,提出了将声发射分形维数大幅度下降作为路堤边坡破坏的前兆特征,从而为预测、预报路堤边坡破坏提供了一种监测分析手段。
The deformation or even destruction of the embankment slope is a serious problem in the construction and operation of the mountainous highway. If it is convenient and accurate to predict and forecast the embankment slope failure, the casualties and property losses can be effectively avoided. Acoustic emission technique was used to monitor the stability of embankment slope. Similar simulation experiments were carried out in the interior of the embankment. The characteristics of acoustic emission under different guide rod diameters and gravel diameters were discussed. The acoustic emission fractal dimension was greatly reduced as The precursor features of embankment slope failure provide a monitoring and analysis method for forecasting and forecasting embankment slope failure.