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A platform for research: civil engineering, architecture and urbanism
Shallow-buried small-spacing rock-soil tunnel construction method
The invention relates to the technical field of tunnel construction, and discloses a shallow-buried small-spacing rock-soil tunnel construction method which is characterized in that the stability of a front rock mass is greatly improved through an advance support method that advance large pipe sheds and advance middle pipe sheds are arranged in a staggered manner on front surrounding rock before construction; the safety during excavation is ensured; compared with the prior art, disturbance to a rock stratum is greatly reduced, deformation and sinking of weak surrounding rock are effectively controlled in time, the safety of ultra-shallow buried section tunnel excavation is improved, the construction progress is accelerated, the construction quality is improved, although large investment exists in materials, layer-by-layer protection enables construction to be in a safe and controllable range all the time, and the construction efficiency is improved. Vibration of blasting to surrounding rock outside the pipe shed is reduced, the overall construction progress is accelerated, the overall construction quality is well controlled, high-risk construction links are reduced, the overall pipe shed has good economic benefits, construction safety is improved, and high application and popularization value is achieved.
本发明涉及隧道施工技术领域，公开了一种浅埋小间距岩土隧道施工方法，本发明浅埋小间距岩土隧道施工方法，通过在施工前对前方围岩进行了超前大管棚加超前中管棚交错布置的超前支护方法，大大提高了前方岩体的稳定性，确保了开挖时的安全；大大降低了对岩层的扰动，使软弱围岩的变形和下沉得到及时有效地控制，提高了超浅埋地段隧道开挖的安全性，加快了施工进度，提高了施工质量，虽在材料上有较大投入，但层层保护使施工始终处于安全可控的范围，减小了爆破对管棚外部围岩的震动，提高了整体施工进度，控制好了整体施工质量，减少了高危的施工环节，整体具有很好的经济效益，且提高了施工安全，具有较高的推广使用价值。
Shallow-buried small-spacing rock-soil tunnel construction method
The invention relates to the technical field of tunnel construction, and discloses a shallow-buried small-spacing rock-soil tunnel construction method which is characterized in that the stability of a front rock mass is greatly improved through an advance support method that advance large pipe sheds and advance middle pipe sheds are arranged in a staggered manner on front surrounding rock before construction; the safety during excavation is ensured; compared with the prior art, disturbance to a rock stratum is greatly reduced, deformation and sinking of weak surrounding rock are effectively controlled in time, the safety of ultra-shallow buried section tunnel excavation is improved, the construction progress is accelerated, the construction quality is improved, although large investment exists in materials, layer-by-layer protection enables construction to be in a safe and controllable range all the time, and the construction efficiency is improved. Vibration of blasting to surrounding rock outside the pipe shed is reduced, the overall construction progress is accelerated, the overall construction quality is well controlled, high-risk construction links are reduced, the overall pipe shed has good economic benefits, construction safety is improved, and high application and popularization value is achieved.
本发明涉及隧道施工技术领域，公开了一种浅埋小间距岩土隧道施工方法，本发明浅埋小间距岩土隧道施工方法，通过在施工前对前方围岩进行了超前大管棚加超前中管棚交错布置的超前支护方法，大大提高了前方岩体的稳定性，确保了开挖时的安全；大大降低了对岩层的扰动，使软弱围岩的变形和下沉得到及时有效地控制，提高了超浅埋地段隧道开挖的安全性，加快了施工进度，提高了施工质量，虽在材料上有较大投入，但层层保护使施工始终处于安全可控的范围，减小了爆破对管棚外部围岩的震动，提高了整体施工进度，控制好了整体施工质量，减少了高危的施工环节，整体具有很好的经济效益，且提高了施工安全，具有较高的推广使用价值。
Shallow-buried small-spacing rock-soil tunnel construction method
一种浅埋小间距岩土隧道施工方法
HE YONGHONG (author) / JIN PENGWEI (author)
2024-05-24
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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