论文部分内容阅读
土钉墙面层受不受力一直存在着争议。根据规程可知土钉面层不受力,所以喷射混凝土面层一般按构造进行设计。但实际上土钉墙面层土压力对基坑变形及墙体的应力分布有重要影响,特别是在软弱土地层深基坑中,面层受力较大。在提出有效下滑力概念的前提下,并结合增量法,对滑楔平衡法进行了改进。通过这种复合型算法计算得出土钉面层是受力的,并和实测值进行了比较,结果表明这种计算方法贴近实际情况。
Soil nail wall has been subject to unbearable controversy. According to the rules we can see that soil nailing surface is not force, so the spray concrete surface layer is generally designed according to the structure. However, in fact, the soil pressure on the soil nail wall has an important influence on the deformation of the foundation pit and the stress distribution of the wall, especially in the deep foundation pit of the soft soil layer. On the premise of putting forward the concept of effective sliding force, combined with incremental method, the sliding wedge balance method is improved. The soil nailing surface is calculated by this composite algorithm, and compared with the measured value, the results show that this method is close to the actual situation.