工程地质学报2016，Vol.24Issue(5)：798-805,8.DOI:10.13544/j.cnki.jeg.2016.05.009
卵砾石下伏中等膨胀岩地层土压平衡盾构姿态演化规律
EVOLUTION LAWS OF EARTH PRESSURE BALANCE SHIELD ATTITUDE IN MEDIUM EXPANSIVE ROCK UNDERLYING GRAVEL-COBBLE LAYER
张亚男 1季昌 2周顺华 3张世荣3
作者信息
- 1. 中铁二院华东勘察设计有限责任公司 杭州 310004
- 2. 同济大学道路与交通工程教育部重点实验室 上海 201804
- 3. 同济大学道路与交通工程教育部重点实验室 上海 201804
- 折叠
摘要
Abstract
The Nanning metro line 1 partly passes through the complex strata of gravel-cobble and medium expansive rock.In order to obtain the evolution process of shield attitude when tunneling in this complex strata,the influence of water-swelling expansive rock on shield attitude is analyzed by measured data.The result shows that the mixture of water-swelling mudstone and synchronous grout can adhere under the shield when encountering water, and makes it difficult to control the shield attitude.The attitude in head part of shield can be descend by enlarge shield thrust in upper region when tunneling.But the attitude in postmedian of the shield can ascend.The water-swelling mudstone can raise the head part of shield when assembling shield segments.The thrust difference between upper and lower regions should be kept in a reasonable value when tunneling.Other control measures should be taken as well.关键词
盾构隧道/中等膨胀岩/盾构姿态/现场监测Key words
Shield tunnel/Medium expansive rock/Shield attitude/Field monitoring分类
天文与地球科学引用本文复制引用
张亚男,季昌,周顺华,张世荣..卵砾石下伏中等膨胀岩地层土压平衡盾构姿态演化规律[J].工程地质学报,2016,24(5):798-805,8.
