邻近建筑物条件下西安地铁盾构施工风险评估及减灾技术
发布时间：2018-10-20 19:20
【摘要】：开展邻近建筑物条件下西安地铁盾构隧道施工风险评估及减灾技术具有重要的理论意义和工程应用价值。本文以西安地铁3号线某区间隧道工程为依托,对邻近建筑物条件下西安盾构隧道施工风险评估及减灾技术进行研究。主要结论有:(1)分析了邻近建筑物条件下西安地铁盾构施工风险的主要影响因素,包括工程地质因素、建筑物基础类型因素、建筑物与隧道相对位置因素及盾构施工工艺因素等4个一级影响因素和14个二级影响因素。(2)将邻近建筑物条件下西安地铁盾构施工风险划分为五个等级,在层次分析法和模糊综合评价法的基础上建立了邻近建筑物条件下西安地铁盾构施工风险评估体系,并提出了邻近建筑物条件下盾构隧道施工风险控制技术流程。(3)提出了邻近建筑物条件下西安地铁盾构隧道施工减灾技术措施,主要包括工程地质、建筑物基础类型、建筑物与隧道相对位置和盾构施工工艺减灾技术等四个方面。(4)基于模糊综合评估法,某区间建工金华酒店楼房附近盾构施工风险等级评估为三级风险,属于中度风险,需要采取措施将盾构施工风险等级降为一级。采用FLAC软件预测了盾构过程中该楼房地面沉降、基础变形及倾斜变形规律,结果表明隧道盾构过程中该楼房地面沉降、基础沉降都超过了警戒值,必须采取减灾措施确保盾构过程中建工金华酒店楼房的安全。(5)提出了建工金华酒店楼房附近盾构施工减灾措施并制定楼房变形监测方案。结合该楼房变形实测值可知,在采取减灾措施以后,楼房变形都在可控范围内,大大降低了盾构施工风险,确保了盾构施工过程中该楼房的安全,表明建工金华酒店楼房附近盾构施工减灾措施是合理有效的。
[Abstract]:It is of great theoretical significance and engineering application value to carry out risk assessment and disaster reduction technology of shield tunneling in Xi'an metro under the condition of adjacent buildings. Based on a section tunnel project of Xi'an Metro Line 3, this paper studies the risk assessment and mitigation technology of Xi'an shield tunnel under the condition of adjacent buildings. The main conclusions are as follows: (1) the main influencing factors of shield tunneling risk in Xi'an metro under the condition of adjacent buildings are analyzed, including engineering geological factors, building foundation type factors, The relative position of the building to the tunnel and the technical factors of shield construction are four first-order and fourteen second-order influencing factors. (2) the construction risk of Xi'an metro shield construction is divided into five grades under the condition of adjacent buildings. Based on the analytic hierarchy process (AHP) and fuzzy comprehensive evaluation method, a risk assessment system for shield tunneling construction of Xi'an metro is established under the condition of adjacent buildings. The technical process of risk control in shield tunnel construction under the condition of adjacent buildings is put forward. (3) the technical measures for disaster reduction of shield tunnel construction in Xi'an metro under the condition of adjacent buildings are put forward, which mainly include engineering geology, building foundation type, and so on. The relative position of the building to the tunnel and the technology of shield construction technology are four aspects. (4) based on the fuzzy comprehensive evaluation method, the risk grade of shield tunneling construction near the building of Jinhua Hotel is classified as three grade risk, which belongs to moderate risk. Measures need to be taken to reduce the risk level of shield construction to one level. The ground subsidence, foundation deformation and inclined deformation of the building during shield tunneling are predicted by FLAC software. The results show that the ground subsidence of the building and the foundation settlement exceed the warning value during shield tunneling. Disaster mitigation measures must be taken to ensure the safety of Jinhua hotel building during shield tunneling. (5) the mitigation measures of shield construction near the building of Jiangong Jinhua Hotel and the monitoring scheme of building deformation are put forward. Combined with the measured values of the deformation of the building, it can be seen that after the disaster reduction measures are taken, the deformation of the building is controlled, which greatly reduces the risk of shield construction and ensures the safety of the building in the course of shield construction. It shows that the shield construction disaster reduction measures near the building of Jinhua Hotel are reasonable and effective.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U455.43;U231.3
本文编号：2284137
[Abstract]:It is of great theoretical significance and engineering application value to carry out risk assessment and disaster reduction technology of shield tunneling in Xi'an metro under the condition of adjacent buildings. Based on a section tunnel project of Xi'an Metro Line 3, this paper studies the risk assessment and mitigation technology of Xi'an shield tunnel under the condition of adjacent buildings. The main conclusions are as follows: (1) the main influencing factors of shield tunneling risk in Xi'an metro under the condition of adjacent buildings are analyzed, including engineering geological factors, building foundation type factors, The relative position of the building to the tunnel and the technical factors of shield construction are four first-order and fourteen second-order influencing factors. (2) the construction risk of Xi'an metro shield construction is divided into five grades under the condition of adjacent buildings. Based on the analytic hierarchy process (AHP) and fuzzy comprehensive evaluation method, a risk assessment system for shield tunneling construction of Xi'an metro is established under the condition of adjacent buildings. The technical process of risk control in shield tunnel construction under the condition of adjacent buildings is put forward. (3) the technical measures for disaster reduction of shield tunnel construction in Xi'an metro under the condition of adjacent buildings are put forward, which mainly include engineering geology, building foundation type, and so on. The relative position of the building to the tunnel and the technology of shield construction technology are four aspects. (4) based on the fuzzy comprehensive evaluation method, the risk grade of shield tunneling construction near the building of Jinhua Hotel is classified as three grade risk, which belongs to moderate risk. Measures need to be taken to reduce the risk level of shield construction to one level. The ground subsidence, foundation deformation and inclined deformation of the building during shield tunneling are predicted by FLAC software. The results show that the ground subsidence of the building and the foundation settlement exceed the warning value during shield tunneling. Disaster mitigation measures must be taken to ensure the safety of Jinhua hotel building during shield tunneling. (5) the mitigation measures of shield construction near the building of Jiangong Jinhua Hotel and the monitoring scheme of building deformation are put forward. Combined with the measured values of the deformation of the building, it can be seen that after the disaster reduction measures are taken, the deformation of the building is controlled, which greatly reduces the risk of shield construction and ensures the safety of the building in the course of shield construction. It shows that the shield construction disaster reduction measures near the building of Jinhua Hotel are reasonable and effective.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U455.43;U231.3
【参考文献】
相关期刊论文 前10条
1 白伟;;地铁施工场地规划需要注意的几个问题[J];中华建设;2014年12期
2 张昌新;余志江;郑太航;;基于半定量法的地铁工程地面塌陷风险评估[J];铁道工程学报;2014年12期
3 付款峰;;地铁盾构工程穿越市政设施风险源施工控制技术[J];铁道建筑技术;2014年09期
4 杜德平;应国柱;;基于层次分析和集对分析的地铁施工风险评估[J];合肥工业大学学报(自然科学版);2014年08期
5 魏纲;周琰;;邻近盾构隧道的建筑物安全风险模糊层次分析[J];地下空间与工程学报;2014年04期
6 胡静;;地铁施工邻近管线安全风险管理研究[J];江西建材;2014年09期
7 张常光;赵均海;张庆贺;;盾构通过矿山法隧道复合支护的管片内力解析解及应用[J];现代隧道技术;2014年02期
8 张辉;;地铁施工对邻近建筑物安全风险管理[J];黑龙江科学;2014年04期
9 余宏亮;;基于FMEA的地铁盾构始发与到达施工风险识别及评估[J];价值工程;2014年10期
10 刘新社;韩同银;;地铁盾构施工安全风险预警警兆指标设计探讨[J];建筑经济;2014年04期
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