| 倾斜式预应力锚索格构梁支护效果分析 |
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| 引用本文： | 何艳平, 沈宇鹏, 陈默, 黄昌乾. 2015: 倾斜式预应力锚索格构梁支护效果分析. 工程地质学报, 23(s1): 362-367. DOI: 10.13544/j.cnki.jeg.2015.s1.056 |
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| 作者姓名： | 何艳平 沈宇鹏 陈默 黄昌乾 |
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| 作者单位： | 1.上海海洋地质勘察设计有限公司 上海 200120;;2.北京交通大学土木建筑工程学院 北京 100044;;3.中航勘察设计研究院有限公司 北京 100098 |
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| 摘 要： | 针对墙背倾斜预应力锚索格构梁的受力规律成果较少的现状, 论文采用Midas/GTS软件, 建立北京门头沟锚索格构梁倾斜的三维实体模型, 对比分析了直立、墙背倾斜80和70时的墙背应力、弯矩及水平变形, 以及墙背的侧向土压力变化规律。结果表明倾角70断面的锚索轴力、水平位移和弯矩都最大, 直立断面最小。建议在预应力锚索格构梁尽量选取直立断面。
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| 关 键 词： | 倾斜式墙背 预应力锚索 格构梁 数值仿真 |
| 收稿时间： | 2015-02-25 |
| 修稿时间： | 2015-05-20 |
PITCHED STRESSED ANCHOR ROPE LATTICE BEAM SUPPORT EFFECT ANALYSIS |
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| HE Yanping, SHEN Yupeng, CHEN Mo, HUANG Changqian. 2015: PITCHED STRESSED ANCHOR ROPE LATTICE BEAM SUPPORT EFFECT ANALYSIS. JOURNAL OF ENGINEERING GEOLOGY, 23(s1): 362-367. DOI: 10.13544/j.cnki.jeg.2015.s1.056 |
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| Authors: | HE Yanping SHEN Yupeng CHEN Mo HUANG Changqian |
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| Affiliation: | 1.Shanghai Marine Geological Exploration and Design Co., Ltd., shanghai 200120;;2.School of Civil Engineering, Beijing Jiaotong University, Beijing 100044;;3.AVIC.Geotechnical Engineer Institute. Co., Ltd., Beijing 100098 |
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| Abstract: | According to the current situation that there are few research results about the mechanics regularity of prestressed anchor cable and lattice beam at the wall in tilted back, the tilted three-dimensional model of anchor cable and lattice beam at Beijing Mentougou are built using Midas/GTS.And the stress, bending moment, horizontal deformation and the variation of lateral earth pressure at the wall in tilted back which is upright or tilted with 80 and 70 are analyzed. The results shows that the axial force of anchor rope, bending moment and horizontal deformation are the largest in the section with the angle of 70, while those are the smallest in the vertical section. So we suggest that the upright section should be chosen for the prestressed anchor cable and lattice beam. |
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| Keywords: | Wall in tilted back Prestressed anchor cable Lattice beam Numerical simulation |
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