利用灰色模型预测打桩噪声和振动的传播

Prediction of Constructional Noise and Vibration by Grey System Theory

建筑打桩施工的噪声和振动，由于在实际传播过程中的未知因素很多，难以建立较高精度的物理预测模型。该文利用灰色系统理论建立ＧＭ（１，１）预测模型，用现场实测数据构成原始序列，以原始数据进行累加生成，计算打桩施工噪声级和振动级按坐标分布的预测值，其结果与实测基本相符，预测精度达到一级。

Physical prediction model is difficult to establish for noise and vibration in building construction due to unknown factors encountered in the actual propagation process.Using grey system theory,we set up a GM(1,1) prediction model,construct an original sequence by onsite data,and calculate the theoretical values of noise and vibration grade along axle.The predication results obtained are in close agreement with the measurement data,with prediction precision achieving one grade.