排架结构码头阶梯形岸坡桩土相互作用模型试验研究
发布时间：2019-03-28 08:12
【摘要】：为研究排架结构码头阶梯形岸坡桩土相互作用以及水位变化对桩土作用的影响,进行了大型模型试验模拟。根据试验数据,对排架结构桩周土体的侧向应力分布、排架桩身的受力特性以及水位变化的影响进行了讨论。结果表明:水平荷载作用下,排架各桩桩周土体侧向应力分布相似,呈三角形分布。桩周土体侧向应力随荷载的增加而增大;排架结构对岸坡有遮帘效应,起到一定的抗滑作用;排架桩身弯矩值随荷载的增加逐渐增大,桩身弯矩的大小与桩所处的位置有很大关系;水位越高,桩周土体侧向应力越大,桩身弯矩也越大,码头整体稳定性越差。
[Abstract]:In order to study the effect of pile-soil interaction on stepped bank slope and the effect of water level on pile-soil interaction, a large-scale model test was carried out to simulate the pile-soil interaction. According to the experimental data, the lateral stress distribution of the soil around the row-framed pile, the stress characteristics of the pile body and the influence of the water level change are discussed. The results show that the lateral stress distribution of the piles around the piles is similar to that of the piles under horizontal load, showing a triangular distribution. The lateral stress of the soil around the pile increases with the increase of the load, and the sheltering structure has a curtain effect on the bank slope, which plays a certain role of anti-sliding. The moment value of pile body increases with the increase of load, and the bending moment of pile is related to the position of pile, and the higher the water level, the greater the lateral stress of soil around the pile, the greater the moment of pile body, and the worse the stability of wharf as a whole, the higher the water level, the greater the lateral stress of soil around the pile and the greater the moment of pile body.
【作者单位】： 重庆交通大学国家内河航道整治工程技术研究中心;重庆交通大学水利水运工程教育部重点试验室;
【基金】：“十二五”国家科技支撑计划课题(2012BAB05B04)资助
【分类号】：U656.1
本文编号：2448690
[Abstract]:In order to study the effect of pile-soil interaction on stepped bank slope and the effect of water level on pile-soil interaction, a large-scale model test was carried out to simulate the pile-soil interaction. According to the experimental data, the lateral stress distribution of the soil around the row-framed pile, the stress characteristics of the pile body and the influence of the water level change are discussed. The results show that the lateral stress distribution of the piles around the piles is similar to that of the piles under horizontal load, showing a triangular distribution. The lateral stress of the soil around the pile increases with the increase of the load, and the sheltering structure has a curtain effect on the bank slope, which plays a certain role of anti-sliding. The moment value of pile body increases with the increase of load, and the bending moment of pile is related to the position of pile, and the higher the water level, the greater the lateral stress of soil around the pile, the greater the moment of pile body, and the worse the stability of wharf as a whole, the higher the water level, the greater the lateral stress of soil around the pile and the greater the moment of pile body.
【作者单位】： 重庆交通大学国家内河航道整治工程技术研究中心;重庆交通大学水利水运工程教育部重点试验室;
【基金】：“十二五”国家科技支撑计划课题(2012BAB05B04)资助
【分类号】：U656.1
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