CAJ | 학술논문

以 FLAC3D为平台，建立了加筋格宾挡墙数值分析模型，研究了加筋格宾挡墙的土压力、挡墙变形、筋材拉应力等特征参数的分布规律，并分析了加筋间距、格宾箱宽和筋材长度对挡墙的影响。研究表明：加筋格宾挡墙的土压力分布规律与经典土压力理论的计算值有较大差异；直立面墙加筋格宾挡墙上部变形大，下部变形小，整体上呈向临空侧倾覆；筋材拉应力在筋长方向为非线性分布；随着加筋间距减小，挡墙的侧向变形减小，筋材受到的拉应力减小，但加筋间距分别为0.7、0.8、0.9m时，墙内最大拉应力基本相同。加筋格宾挡墙的格宾箱面墙本身就相当于一座重力式挡土墙。随着格宾箱宽度增加，挡墙变形减小，筋材受到的拉应力也减小。随着筋材长度增加，挡墙侧向变形减小，但当筋长超过0.67倍墙高后，挡墙的侧向变形和筋材最大拉应力不再变化。
이 FLAC3D위평태，건립료가근격빈당장수치분석모형，연구료가근격빈당장적토압력、당장변형、근재랍응력등특정삼수적분포규률，병분석료가근간거、격빈상관화근재장도대당장적영향。연구표명：가근격빈당장적토압력분포규률여경전토압력이론적계산치유교대차이；직립면장가근격빈당장상부변형대，하부변형소，정체상정향림공측경복；근재랍응력재근장방향위비선성분포；수착가근간거감소，당장적측향변형감소，근재수도적랍응력감소，단가근간거분별위0.7、0.8、0.9m시，장내최대랍응력기본상동。가근격빈당장적격빈상면장본신취상당우일좌중력식당토장。수착격빈상관도증가，당장변형감소，근재수도적랍응력야감소。수착근재장도증가，당장측향변형감소，단당근장초과0.67배장고후，당장적측향변형화근재최대랍응력불재변화。
Based on FLAC3D ,a numerical model of reinforced gabion retaining wall has been built, the distribution lows of its earth pressure,deformation,reinforcement tensile stress have been studied,and the influence of reinforced spacing,gabion box width and reinforcement length to the retaining wall have been analyzed.Research shows that:the earth pressure distribution rule is different to the classical earth pressure theory calculation value;the deformation on the upper of wall is bigger than that on the lower;the tensile stress of geosynthetics distributes nonlinearly in the band long direction,with the reinforcement spacing decreases,the lateral deformation of retaining wall is reduced,the tensile stress of reinforcement decreased,but when the distance are respectively 0.7 m,0.8 m,0.9 m,the maximum tensile stress of re-inforcements is basically the same;the gabion box wall itself is the equivalent of a gravity retaining wall, and with gabion box width increases,the deformation of retaining wall and the tensile stress is re-duced.With the increase of reinforcement length,the lateral deflection of wall decreases,but when the band length is more than 0.67 times of wall height,the lateral deformation of retaining wall and reinforced material maximum tensile stress changes no longer.