期刊论文

Jiang, J.

中文

中国铁道科学

1001-4632

2009

30

1

36-40

10.3321/j.issn:1001-4632.2009.01.007

基金项目：湖南省教育厅科研项目（08C199） 湖南城市学院青年项目（0713023） 湖南省交通厅科技项目（200612）

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根据加筋土挡墙分层填筑、分层加筋、分层压实成水平成层土体的特点,针对加筋材料的不可延展性和可延展性2种情况,采用不同的形状简化破裂面,并将加筋体划分成一定数量水平土条,提出分析加筋土挡墙地震稳定性的水平条分方法.导出筋材拉力和所需筋材长度的计算公式,分析填土内摩擦角、水平和竖向地震加速度系数对筋材拉力及所需筋材长度的影响.结果表明:随着填土内摩擦角的减小、地震加速度系数的增加,加筋土挡墙内部稳定性变差,需要筋材的强度更大、长度更长;当填土内摩擦角及地震加速度系数相同时,可延展性筋材所需长度比不可延展性筋材大.与其他方法的比较分析表明,采用简化破裂面比采用对数螺...

Based on the layer-filled, layer-reinforced, layer-compacted construction characteristics of reinforced retaining wall, and the assumption of difform rupture shape of the wall which is directed toward the extensibility and inextensibility of the reinforcements, a limit equilibrium method identified as horizontal slice method was presented to analyze the internal stability of the reinforced retaining wall subjected to horizontal and vertical seismic loads. Formulas about the required tensile force and length of reinforcements to maintain the internal stability of the wall were deduced. In this ...