抗滑桩阻力上下限解法 English Version
An analytical method of the stabilizing force of piles for landslide control using Janbu’s generalized procedure of slices
-
摘要: 基于工程上常用的Janbu普遍条分法(GPS)和剩余推力法,提出了确定单排或多排抗滑桩抗滑阻力的上、下限计算方法。该法假定桩前、桩后滑动土体具有不同的稳定性系数,或假定桩前、桩后滑动土体具有不同的剩余推力,并且抗滑桩承受的下滑力是水平距离的函数。对于单排桩,借助于下限法可以通过试算确定其设桩范围;对于多排桩,借助于上限法可以通过有限的组合枚举确定其最佳的配置。上、下限法的结合可以巨大降低计算量,同时又能满足工程精度要求。运用该方法还可以确定不宜设置抗滑桩的位置范围。文中的算例展示了该方法的具体运用过程。Abstract: Based on Janbu’s generalized procedure of slices (GPS) and the residual thrust method,this paper has presented a simplified calculation procedure, including upper bound method and lower bound method, for estimating the deterrent force induced by stabilizing piles in a landslide. The lower bound method assumed that sliding masses above and below each row of piles are allowed to have different values of residual thrust force or the factor of safety, and that the thrust force is a function of horizontal position. For a single row of piles, the optimization position for pile to be exerted in can be obtained by the lower bound method by trial calculation; for multiple rows of piles, the optimization configuration of the stabilizing piles can be determined by the upper bound method by limited enumeration. The combination of the two methods is greatly able to reduce computational effort for estimating the stabilizing effect without losing largely computational accuracy. It has been illustrated through an example problem that it will have better effect to using multiple rows of piles than single rows to control a large landslide. The presented systematic method can account for all available information of different stabilizing measures in an uniform frame using Janbu’s GPS.
-
期刊类型引用(10)
1. 凌建明，张玉，钱劲松，吴振吉，郑纯宇. 冻融条件下路基温度场和湿度场分布式感知试验. 同济大学学报(自然科学版). 2024(04): 582-591 . 
百度学术
2. 寇玉冬，张利伟. 城市浅层土体水热耦合数值模拟分析. 工程与建设. 2024(06): 1249-1252+1257 . 百度学术
3. 高磊，曹阳，赵子鑫，叶永锋，张纶钊. 海岛环境条件下超长灌注桩温度光纤监测研究. 防灾减灾工程学报. 2023(04): 674-681 . 百度学术
4. 焦卫国，林长松，庹斌，贺明卫，刘振男，张玥. 半湿润地区毛细阻滞覆盖层长期防渗性能评价与渗漏气象机制分析. 土木工程学报. 2023(10): 118-126 . 百度学术
5. 赵志鹏，景明，黄亚军，吕志强. 基于模型试验的边坡二、三层毛细屏障导流长度分析. 矿产勘查. 2023(09): 1722-1730 . 百度学术
6. 焦卫国，庹斌，张松，贺明卫，林长松，刘振男. 西北非湿润区毛细阻滞覆盖层防渗性能验证与长期服役高危易渗气象段分析. 岩土力学. 2023(S1): 539-547 . 百度学术
7. 马朝阳，任杰，南胜豪，徐松. 土石堤坝渗漏病险试验装置的研制及初步应用. 岩土工程学报. 2023(11): 2268-2277 . 本站查看
8. 朱武，张勤，朱建军，黄观文，王彦平，朱鸿鹄，胡伟，胡俊. 特大滑坡实时监测预警与技术装备研发. 岩土工程学报. 2022(07): 1341-1350 . 本站查看
9. 刘喜凤，朱鸿鹄，王家琛，李杰，王静，曹鼎峰，施斌. 非饱和土水分迁移感测的主动加热光纤光栅法试验研究. 岩土工程学报. 2022(08): 1443-1452 . 本站查看
10. 刘喜凤，朱鸿鹄，王家琛，吴冰，李杰，曹鼎峰，施斌. 基于神经网络的改进型土壤水分光纤感测技术研究. 岩土工程学报. 2022(09): 1721-1729+11 . 本站查看
其他类型引用(2)
计量
- 文章访问数: 1324
- HTML全文浏览量: 1
- PDF下载量: 490
- 被引次数: 12
下载:
