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| Study on Application of Multiple － influence － factor － based Calculation Model in Monitoring Urban Ground Subsidence |
| HAO Ya － dong1，XU Jia － dong1，ZHANG Yong2 |
| 1． Yellow River Conservancy Vocational and Technical College，Kaifeng，Henan 475003，China; 2． Kaifeng City Water Supply Corporation，Kaifeng，Henan 475002，China |
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Abstract Research purposes: In recent years，with the urban development and utilization of underground water，a large number of underground water have been pumped out，and it will bring out the ground subsidence． This paper describes the influences of the changes of underwater level，pore water pressure and ground load on the ground subsidence and analyzes the influence mechanism of these factors． A calculation model was established for monitoring the ground subsidence with the principles of regression analysis，and the model accuracy was verified by using it to monitoring the ground subsidence． The model can be used for providing the scientific basis for determining the quantity and density of underground water pumping well and it is of great significance to predicting the ground subsidence in urban areas and along the transportation routes and prevention of the disasters．
Research conclusions: The calculation model of monitoring subsidence affected directly the calculation results of ground subsidence． Based on the relation between the groundwater table，pore water pressure，ground load and ground subsidence，this model established with the regression analysis principle is suitable for monitoring the ground subsidence in urban areas and along transportation routes．
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Received: 05 February 2011
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2011, Vol. 28 
