Figures of the Article
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Geological profile of main line tunnel[17]
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Structural design of Guanyinyan tunnel [17]
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Design of composite linings of left auxiliary and main tunnels under surrounding rock of grade V [17]
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Diagram of construction sequences for Guanyinyan tunnel
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Typical construction stages of section K0+418
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Profile of test section and layout of strain gauges
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Time-history curves of stress of steel arches of left main tunnel
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Time-history curves of stress of steel arches of right main tunnel
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Stress-time curves of steel arches of left auxiliary tunnel
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Distribution of internal force of steel arches of section K0+418
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Time-history curves of stress of secondary linings of left main tunnel
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Time-history curves of stress of secondary linings of right main tunnel
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Distribution of internal force of secondary linings of section K0+418
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Safety factors of secondary linings of section K0+418
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Increments of internal force at various stages of steel arches of left main tunnel
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Increments of internal force at various stages of secondary.linings of left main tunnel
Tables of the Article
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衬砌
类型层数 喷射混凝土厚度/cm 工字钢钢拱架
(型号,间距/cm)钢筋网 二次衬砌厚度/cm 中空注浆锚杆 预留变形量/
cmLGZ-Ⅴ 第1层 C30,28 I22b,50 20 cm×20 cm
ϕ8 mmC35,60 ϕ25 mm,长度4 m,间距100 cm×50 cm(环×纵) 12 第2层 C30,26 I20b,50 LGF-Ⅴ — C30,28 I22b,50 10 LGZ-Ⅳ 第1层 C30,26 I20b,75 C35,55 ϕ25 mm,长度3.5 m,间距100 cm×75 cm
(环×纵)8 第2层 I20a,75 LGF-Ⅳ — I20b,75 7 -
编号 典型工序 时间节点 1-1 左主洞上台阶开挖 2020-11-10 1-2 左主洞二衬施作完成 2020-12-16 2-1 右主洞上台阶开挖 2021-03-11 2-2 右主洞二衬施作完成 2021-04-14 3-1 左辅洞上台阶开挖 2021-03-13 3-2 左辅洞二衬施作完成 2021-04-19 4-1 右辅洞上台阶开挖 2021-05-15 4-2 右辅洞二衬施作完成 2021-06-22 -
位置 左主洞第一层(Kgy) 左主洞第二层(Kgy) 右主洞第二层(Kgy) 左辅洞(Kgy) 右辅洞(Kgy/Kgl) 左墙脚 — 6.21 14.52 — — 左边墙 — 9.97 48.76 — — 左拱脚 2.98 6.10 8.13 25.75 18.20(Kgl) 左拱肩 6.72 6.80 5.19 16.65 14.48(Kgl) 拱顶 16.07 5.48 3.97 12.08 8.92 右拱肩 2.56 3.70 4.72 5.73 8.64 右拱脚 8.98 2.41 2.76 4.88 27.86 右边墙 — 5.25 5.19 — — 右墙脚 — 5.58 4.53 — — 注:加下划线数据为元器件破坏前最后一次测得应力数据。