摘要
为保障腰口隔堤安全稳定运行的目的,对乌林互通涉水大桥桥墩跨越的腰口隔堤采用瑞典圆弧法分析计算,分别计算设计洪水位下稳定渗流期的背水侧堤坡稳定、设计洪水位骤降期的临水侧堤坡稳定2种工况。工程前稳定渗流期背水侧计算值为2.61,骤降期临水侧为2.77;工程后稳定渗流期背水侧计算值为2.58,骤降期临水侧为2.73;工程前后腰口隔堤抗滑稳定安全系数均大于允许值1.15。计算结果表明,堤防在修建桥墩前后抗滑稳定性变化甚小。腰口隔堤抗滑稳定性满足要求,建议采取防洪补救措施。
In order to ensure the saf e and stable operation of the waist dike,the Swedish circular arc method is used to analyze and calculate the waist dike spanned by the piers of the Wulin Interchange Wading Bridge,the backwater side dikes in the stable seepage period under the design flood level are calculated respectively,the stability of the dike slope near the water side in the period of sudden drop of flood water level is designed under two working conditions.The calculated value of the leeward side during the stable seepage period before the project is 2.61,and that ofthe waterfront side during the slump period is2.77.After the project is completed,the calculated value of the back water side in the stable seepage period is 2.58,and that of the water side in the sudden drop period is 2.73.The anti-sliding stability safety coefficient of the waist dike before and after the project is greater than the allowable value of 1.15.The calculation results show that the anti-sliding stability of the dike changes little before and after the construction of piers.The anti-sliding stability of waist dike meets the requirements,and flood control remedial measures are suggested.
出处
《科技创新与应用》
2023年第4期82-85,共4页
Technology Innovation and Application
基金
2022年度湖北省职业技术教育学会科学研究课题“高职院校与驻地龙头企业共建师资培养基地问题研究”(ZJGB2022099)。
关键词
三维模型
腰口隔堤
抗滑稳定
稳定分析
安全分析
three-dimensional model
waist dike
anti-sliding stability
stability analysis
safety analysis
