| 盾构施工对已有建筑物基础沉降的影响分析 |
| |
| 引用本文： | 刘婷,赵明月,孙会杰,李璐,刘忠玉. 盾构施工对已有建筑物基础沉降的影响分析[J]. 河南科学, 2012, 30(8): 1096-1099 |
| |
| 作者姓名： | 刘婷 赵明月 孙会杰 李璐 刘忠玉 |
| |
| 作者单位： | 郑州大学土木工程学院,郑州,450001 |
| |
| 基金项目： | 郑州大学创新创业训练计划项目（2011CXSY077） |
| |
| 摘 要： | 以郑州市盾构施工区实际土质情况为背景,采用数值仿真分析软件FLAC 3D,就盾构隧道对邻近已有建筑的影响进行数值模拟分析,从而讨论隧道与建筑物间距及埋深等因素对基础差异沉降的影响.计算结果表明,当隧道近距离穿过筏基下的土层时,隧道中心偏离筏基下中心线越远,不均匀沉降差越大,但超过一定范围,又逐渐减小.同时,考虑沉降量和整体倾斜两个特征变形允许值给出了可以忽略盾构施工对建筑物沉降影响的隧道位置范围.
|
| 关 键 词： | 隧道工程 盾构施工 不均匀沉降 FLAC 3D 数值模拟 |
Analysis of the Settlement of Existing Building Foundations Caused by the Shield Construction |
| |
| Liu Ting , Zhao Mingyue , Sun Huijie , Li Lu , Liu Zhongyu. Analysis of the Settlement of Existing Building Foundations Caused by the Shield Construction[J]. Henan Science, 2012, 30(8): 1096-1099 |
| |
| Authors: | Liu Ting Zhao Mingyue Sun Huijie Li Lu Liu Zhongyu |
| |
| Affiliation: | (School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China) |
| |
| Abstract: | The subsidence of existing building＇s foundation caused by the shield construction is simulated with FLAC 3D which is based on the engineering situation of Zhengzhou subway. The actual soil condition of Zhengzhou is taken as background to discuss the impact of the tunnel depth and spacing on the settlement of the foundation. The computed result shows that, the farther the tunnel deviates from the center of the raft foundation, the larger the uneven settlement difference is,but when the former exceeds a certain extent,the latter gradually decreases. In addition, the range of the shield construction site where the impact on the foundation can be ignored, according to the two characteristics which are the settlements and the uneven settlement differences, can be found. |
| |
| Keywords: | tunnelling engineering shield construction uneven settlement FLAC 3D numerical simulation |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
