张勇, 聂德新, 刘彬, 魏玉峰. 2011: 下卧软弱岩带变形模量取值研究. 工程地质学报, 19(1): 99-102.
    引用本文: 张勇, 聂德新, 刘彬, 魏玉峰. 2011: 下卧软弱岩带变形模量取值研究. 工程地质学报, 19(1): 99-102.
    ZHANG Yong, NIE Dexin, LIU Bin, WEI Yufeng. 2011: NEW EVALUATION METHOD FOR DEFORMATION MODULUS OF UNDERLAIN WEAK ROCK ZONE. JOURNAL OF ENGINEERING GEOLOGY, 19(1): 99-102.
    Citation: ZHANG Yong, NIE Dexin, LIU Bin, WEI Yufeng. 2011: NEW EVALUATION METHOD FOR DEFORMATION MODULUS OF UNDERLAIN WEAK ROCK ZONE. JOURNAL OF ENGINEERING GEOLOGY, 19(1): 99-102.

    下卧软弱岩带变形模量取值研究

    NEW EVALUATION METHOD FOR DEFORMATION MODULUS OF UNDERLAIN WEAK ROCK ZONE

    • 摘要: 软弱岩带的变形模量对于工程建设意义重大,当前变形试验方法难以表征原位条件下软弱岩带的变形模量,导致取值偏于保守。本文基于弹性力学推导了下卧软弱岩带变形模量的解析解,建立了一种新的软弱岩带变形模量的取值方法。在现场试验成果的基础上,采用有限元反演,数值模拟成果与试验计算成果较为吻合,证明该计算方法合理可行,较常规方法直接在软弱岩带上开展的试验成果大幅提高。

       

      Abstract: Deformation modulus of the weak rock zone has a great significance on the project construction. It is difficult for the current deformation test methods to characterize deformation modulus of the in-situ weak rock zone, which results in conservative values. In this paper, on the basis of theory of elasticity, analytical solution of deformation modulus of underlain weak rock belts is deduced. A new evaluation method of deformation modulus of weak rock zone is established. On the basis of field test and finite element inversion, it is shown that the calculation method is reasonably practicable between the results of numerical simulation and experiment calculation. It can greatly improve the test results that are conventionally and directly carried out on weak rock zone.

       

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