Mechanical Characteristic and Rapid Construction of the Steel Arch Frame in Tunnel Shaft Initial Support
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摘要: 公路隧道钢拱架的架设方式以及受力特征是公路隧道竖井初期支护建设的关键。以云南省墨江至临沧高速公路泰和隧道为研究对象，提出采用开口箱型挂钩安装钢拱架的快速施工方法，研究楔形块对控制围岩变形的作用，研究结果表明：采用开口箱型挂钩安装钢拱架，提高了竖井施工的工作效率，降低了施工的时间成本，楔形块能够较好地控制围岩的变形。研究结果为竖井初期支护钢拱架快速施工提供了参考。Abstract: The erection mode and stress characteristics of steel arch frame in highway tunnel are the key points of initial support construction of highway tunnel shaft. Taking the Taihe tunnel of the Expressway from Mojiang to Lincang in Yunnan Province as the research object, the rapid construction method of installing steel arch frame with open-box hook was proposed, and the effect of wedge blocks on controlling surrounding rock deformation was studied. The analysis results show that: the using of opening box hook improves the working efficiency of shaft construction and reduces the time cost of construction in installing the steel arch. The deformation of surrounding rock could be controlled better by using wedge block. The research results provide a reference for the rapid construction of steel arch support in the initial stage of shaft.
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Key words:
- tunnel engineering /
- shaft /
- initial support /
- steel arch frame /
- construction method optimization
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[1] 李明洪. 公路隧道大直径深竖井开挖施工技术应用实践[J]. 公路交通科技(应用技术版),2018,14(5):214-217. [2] 刘 伟,熊富有. 竖井开挖支护及混凝土衬砌施工工法技术[J]. 水利建设与管理,2017,37(10):95-100,105. [3] 孔 科,易文明,汤 雷,等. 软岩中竖井开挖的支护体系研究[J]. 人民黄河,2018,40(2):131-134. doi: 10.3969/j.issn.1000-1379.2018.02.028 [4] 王颂翔, 张珑腾, 沈 明, 等. 软土地层大断面深竖井开挖支护设计[C]//抽水蓄能电站工程建设文集, 2021. [5] 孙希波,侯效毅,徐 阳,等. 地铁施工竖井装配式钢结构初衬的受力分析[J]. 地下空间与工程学报,2022,18(1):281-289. doi: 10.3969/j.issn.1673-0836.2022.1.dxkj202201032 [6] 徐 冲. 巨厚砂卵层中钢格构柱–桩基顶托下超大深竖井逆作设计与建造方案探讨[J]. 北京交通大学学报,2020,44(3):109-117. doi: 10.11860/j.issn.1673-0291.20190081 [7] 朱文敏. 深竖井反井法先导孔偏斜控制研究[J]. 中国金属通报,2020,(8):16-18. doi: 10.3969/j.issn.1672-1667.2020.08.009 [8] 濮奇浩,骆晓锋,徐 磊,等. 复杂支护结构软弱地层深竖井施工过程仿真分析[J]. 人民黄河,2022,44(3):144-148,159. doi: 10.3969/j.issn.1000-1379.2022.03.028 [9] 宗露丹,王卫东,徐中华,等. 软土地区56 m超深圆形竖井基坑支护结构力学分析[J]. 隧道建设(中英文),2022,42(7):1248-1256. [10] 冯 玲. 地铁施工倒挂井壁法竖井扩挖施工技术分析[J]. 建筑技术开发,2018,45(21):27-28. doi: 10.3969/j.issn.1001-523X.2018.21.014 [11] 青 刚,张小青. 竖井施工爆破工艺优化研究与实践[J]. 冶金管理,2019,(17):20,22. [12] 王 志. 伞钻凿井技术在水封石油洞库竖井开挖施工中的应用[J]. 人民黄河,2022,44(S1):271-272,274. [13] 赵兴东,武 桐,李文光,等. 2000 m大直径超深竖井新型凿岩提升悬吊系统设计[J]. 有色金属(矿山部分),2022,74(5):155-159. [14] 丁张飞. 全断面竖井掘进机关键技术[J]. 建筑机械化,2022,43(11):11-15. doi: 10.13311/j.cnki.conmec.2022.11.008 [15] 郑康泰,贾连辉,牛梦杰,等. 全断面竖井掘进机研制及关键系统试验[J]. 隧道建设(中英文),2021,41(10):1794-1800. [16] 刘芳明,蒋 漫. 抽水蓄能电站深竖井预制件快速吊装施工技术[J]. 云南水力发电,2022,38(10):111-115. -
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