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非饱和膨胀土主动土压力的库仑解析解 被引量:3
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作者 胡晓军 吴延枝 《南水北调与水利科技》 CAS CSCD 北大核心 2016年第5期146-149,156,共5页
分析非饱和膨胀土的强度特性,考虑非饱和膨胀土含水量与强度的关系及相关影响因素,基于平面滑裂面假设,运用库仑理论,推得了计算非饱和膨胀土主动土压力的解析解公式,并用实际算例对公式进行检验。算例分析表明,随着含水量的增加,主动... 分析非饱和膨胀土的强度特性,考虑非饱和膨胀土含水量与强度的关系及相关影响因素,基于平面滑裂面假设,运用库仑理论,推得了计算非饱和膨胀土主动土压力的解析解公式,并用实际算例对公式进行检验。算例分析表明,随着含水量的增加,主动土压力增大,其变化幅度逐渐减小;若不考虑含水量的影响,结果偏于保守;应用本文建立的解析解公式,可直接得出膨胀土的主动土压力及填土滑裂面与水平面的夹角。 展开更多
关键词 非饱和膨胀土 含水量 基质吸力 主动土压力 库仑解析解
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Approximate Bound States Solution of the Hellmann Potential 被引量:3
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作者 M. Hamzavi K.E. Thylwe and A.A. Rajabi 《Communications in Theoretical Physics》 SCIE CAS CSCD 2013年第7期1-8,共8页
The Hellmann potential, which is a superposition of an attractive Coulomb potential -air and a Yutmwa potential b e-δr /r , is often used to compute bound-state normalizations and energy levels of neutral atoms. By u... The Hellmann potential, which is a superposition of an attractive Coulomb potential -air and a Yutmwa potential b e-δr /r , is often used to compute bound-state normalizations and energy levels of neutral atoms. By using the generalized parametric Nikiforov-Uvarov (NU) method, we have obtained the approximate analytical solutions of the radial Schr6dinger equation (SE) for the Hellmann potential. The energy eigenvalues and corresponding eigenfunctions are calculated in closed forms. Some numerical results are presented, which show good agreement with a numerical amplitude phase method and also those previously obtained by other methods. As a particular case, we find the energy levels of the pure Coulomb potential. 展开更多
关键词 Schrodinger equation Hellmann potential Nikiforov-Uvarov method
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