论文部分内容阅读
文章以西安市为例 ,根据西安市地质技工学校地裂差异沉降动态特征 ,利用承压水位动态资料及地裂差异沉降资料建立了灰色模型 ,对承压水位下降及地裂差异沉降进行预测。首先采用费尔哈斯特 (Verhulst)生物繁殖模型 ,以过去几十年的地裂差异沉降速率的监测资料为背景予以灰色系统理论处理和进行沉降旋回期或寿命预测 ,进而根据预测的地裂差异沉降速率算出未来 5 0 a的累计地裂差异沉降量。其次采用灰色模型预测西安市地质技工学校承压水位变化 ,进而根据用线性回归方程所得的承压水位变化与地裂差异沉降的关系方程 ,预测其今后 5 0 a的地裂差异沉降量
Taking Xi’an City as an example, a gray model was established based on dynamic subsidence characteristics of ground fissures in Xi’an Geotechnical Engineering School. Based on the dynamic pressure data and the differential settlement data of ground fissures, the authors made a prediction of the decrease of confined water level and the differential settlement of ground fissures. Firstly, the Verhulst biological propagation model was used to deal with the gray system theory and the subsidence cycle or life prediction based on the monitoring data of the differential settlement rate of ground fissures over the past decades. Based on the predicted ground fissures Difference sedimentation rate calculated the next 50 a cumulative differential settlement of ground fissures. Secondly, the gray model is used to predict the change of pressure water level in Xi’an Geological Technical School. Based on the equation of the relationship between the change of bearing water level and the differential settlement of ground fissure obtained from the linear regression equation, the differential settlement of ground-crack in the next 50 years is predicted