【作者】 王健；

【导师】 侍克斌；

【作者基本信息】 新疆农业大学 ， 水利工程， 2007， 硕士

【摘要】 斜墙复合防渗体(含苯板防冻层)近年来广泛应用于土石坝建设中。复合防渗体在坝体中起着举足轻重的作用,其稳定性直接了影响整个坝体的稳定。砼板、土工膜、苯板相互结合作为坝体的复合防渗体的一种型式,目前仍缺乏可靠的理论依据。本文对土石坝斜墙复合防渗体(含苯板防冻层)在水库不同运行状态下进行了结构稳定分析和应力分析,为新材料(土工膜和苯板)在水利工程中的广泛应用提供理论分析依据。本文充分利用新疆恰拉水库运行经验进行分析论证,提出理论依据,为指导土石坝合理采用新型防渗、保温材料提供了经验。随着复合防渗、保温材料在寒冷地区土石坝护坡中的应用,将大大节省建筑材料及工程投资,增强水库坝体安全稳定。此研究填补了国内寒冷地区平原水库砼板护坡复合防渗体的稳定计算空白,必将为指导新型材料在土石坝护坡设计中的应用发挥积极作用。更多还原

【Abstract】 Vertical bearing capacity of single pile relate to the important question whether the design is safe and economical or not in the pile foundation construction. There are many methods in the world, which can calculate the vertical bearing capacity of single pile. But all these methods aren’ t perfect, scientific or economical. For this reason,the load-displacement curve is made use of in this paper when a pile is bore vertical load ,and the curve is applied for cusp catastrophe theory. As a result, the formulation of vertical bearing capacity of single pile is deduced, meanwhile, the dividing line between ductility failure and brittle failure is demarcated. The deduced formulation of vertical bearing capacity of single pile is performed on the practical construction and receive results, then the results is compared with the practical results, a satisfied conclusion is got.更多还原