Modulus anti-inference method for rock-fill roadbed

Modulus anti-inference method for rock-fill roadbed

  • CN 100,451,603 C
  • Filed: 09/07/2004
  • Issued: 01/14/2009
  • Est. Priority Date: 09/07/2004
  • Status: Active Grant
First Claim
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1. , a kind of method of definite rock-filling embankment construction quality is characterized in that, this method may further comprise the steps:

  • A, Falling Weight Deflectometer FWD test flexure data and time-histories data on rock-filling embankment;

    B, to the flexure data that structural parameters and FWD tested out and the time-histories data of modular inverse calculation system input rock-filling embankment;

    C, modular inverse calculation system determine the layer position and the Poisson ratio value of rock-filling embankment according to the structural parameters of the rock-filling embankment that is obtained, and according to the time-histories data that comprise in the FWD test data actual measurement flexure data are revised;

    D, modular inverse calculation system calculate one group of introductory die value according to the layer position and the Poisson ratio value of revised flexure data and fixed rock-filling embankment, with this group introductory die value of calculating as current modulus value;

    Deflection value calculates according to current modulus value in E, modular inverse calculation system, whether the difference between the actual measurement flexure data that comprise in the FWD test data that deflection value that judgement calculates and step B obtain satisfies the fitting precision requirement, if, then with current modulus value as the modular inverse calculation result, execution in step G, otherwise, execution in step F;

    F, modular inverse calculation system calculate one group of modulus value according to deflection value that calculates and the difference of surveying between the flexure data, and this group modulus value of calculating as current gained modulus value, is returned step e;

    G, modular inverse calculation system determine according to the modular inverse calculation result whether the construction quality of rock-filling embankment is qualified.

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