| 注浆抬升在隧道穿越既有建筑物中的研究及应用 |
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| 引用本文： | 彭正勇.注浆抬升在隧道穿越既有建筑物中的研究及应用[J].岩石力学与工程学报,2011,30(Z1):2963-2969. |
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| 作者姓名： | 彭正勇 |
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| 作者单位： | (中铁隧道集团股份有限公司，河南 洛阳 471000) |
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| 摘 要： | 厦门机场路一期工程浦南段暗挖隧道具有浅埋、大跨、围岩软弱、周边施工环境复杂等显著特点，在隧道下穿的楼房中，34#楼房是工程中重点保护对象。根据34#楼房结构、地基岩层及周边环境等情况，经过对各种房屋保护方案的可靠性和可操作性等方面进行系统分析，施工中采取地表跟踪注浆施工方法对房屋进行保护。根据104#，105#楼房注浆试验研究效果，确定34#楼房以过程控制和工后恢复为核心的注浆抬升方案，采用袖阀管注浆工艺。为实时掌握34#楼房沉降及裂缝的发展情况，及时指导施工，布置房屋沉降及裂缝发展监测点，监测结果表明：注浆抬升能够有效地抑制房屋的沉降和裂缝的发展，最终房屋的各测点累计沉降值控制在25 mm之内，差异沉降控制在1‰之内，隧道穿越34#楼房的过程中结构安全处于可控状态。注浆抬升对于保护隧道穿越既有建筑物具有重要工程意义，该研究成果为类似的隧道穿越工程提供一定的借鉴。
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| 关 键 词： | 隧道工程浅埋大跨隧道注浆抬升房屋保护袖阀管注浆沉降控制 |
| 收稿时间： | 2010-03-04; |
STUDY OF GROUTING UPLIFTING FOR EXISTING BUILDINGS TRAVERSED BY TUNNEL AND ITS APPLICATION |
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| PENG Zhengyong.STUDY OF GROUTING UPLIFTING FOR EXISTING BUILDINGS TRAVERSED BY TUNNEL AND ITS APPLICATION[J].Chinese Journal of Rock Mechanics and Engineering,2011,30(Z1):2963-2969. |
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| Authors: | PENG Zhengyong |
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| Affiliation: | (China Railway Tunnel Stock Co.，Ltd.，Luoyang，Henan 471000，China) |
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| Abstract: | Subsurface excavation tunnel at Punan section of phase I project of Xiamen airport road is a shallow-buried,large-span and soft rock tunnel,the surrounding construction environment is complex.Building #34 is a key protection object during tunnel traverses buildings.According to the structures,foundation rocks and surrounding environment of building #34,the ground tracking grouting method is adopted to protect buildings during construction by systematically analyzing the reliabilities and operabilities of va... |
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| Keywords: | tunneling engineering shallow-buried and large-span tunnel grouting uplifting building protection sleeve valve pipe grouting settlement control |
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