摘要
隧道洞口山体是隧道施工顺利进行的关键,也是隧道工程灾害(如塌方、冒顶等)的频发地段,对其进行定量的观测研究和预报是防止灾害发生的重要措施。基于等维灰数递补数据处理技术,建立了等维灰数递补GM(1,1)模型,对洞口山体沉降进行了预测和模拟,以判定洞口山体的稳定性。结果表明:等维灰数递补数据处理技术充分利用了系统响应的最新信息,降低了预测系统的灰度,提高了模型的预测精度,预测结果可靠,与常规灰色预测模型相比该法更具有实用价值。
The slope of the tunnel outlet is not only essential to the tunnel construction but also a place where the disasters , such as tunnel collapse and roof fall, happen frequently . The observations studies and prediction of it is an important measure to prevent the disasters to happen. Base on the technique of the same dimension gray recurrence, the GM （ 1,1 ） model is established ,which is used to simulate and predict the slope settlement of the tunnel outlet ,so that the slope stability could be analyzed. The results indicated that not only the latest system response information is taken full advantage of but also the gray-level of the prediction system is decreased. The precision of model prediction is improved with considerable reliability. It has more practical value than the traditional grey model.
出处
《公路工程》
2008年第2期71-73,125,共4页
Highway Engineering
关键词
隧道工程
灰色理论
等维灰数递补技术
地表沉降
预测
Tunneling engineering
Grey theory
The technique of the same dimension gray recurrence
Settlement of ground surface
Prediction
