Geomechanics and Engineering

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A mathematical model to recover missing monitoring data of foundation pit

  • Liu, Jiangang (School of Earth Science and Engineering, Hohai University) ;
  • Zhou, Dongdong (School of Earth Science and Engineering, Hohai University) ;
  • Liu, Kewen (School of Earth Science and Engineering, Hohai University)
  • Received : 2014.10.20
  • Accepted : 2015.04.18
  • Published : 2015.09.25
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Abstract

A new method is presented to recover missing deformation data of lateral walls of foundation pit when the monitoring is interrupted; the method is called Dynamic Mathematical Model - Parameter Interpolation. The deformation of lateral walls of foundation pit is mainly affected by the type of supporting structure and the situation of constraints, therefore, this paper mainly studies the two different kinds of variation law of deep horizontal displacement when the lateral walls are constrained or not, proposes two dynamic curve models of normal distribution type and logarithmic type, deals with model parameters by interpolating and obtains the parameters of missing data, then missing monitoring data could be Figured out by these parameters. Compared with the result from the common average method which is used to recover missing data, in the upper 2/3 of the inclinometer tube, the result by using this method is closer to the actual monitoring data, in the lower 1/3 part of the inclinometer tube, the result from the common average method is closer to the actual monitoring data.

Keywords

References

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