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A platform for research: civil engineering, architecture and urbanism
Construction method of small-spacing unsymmetrical pressure tunnel portal protection structure
The invention relates to the technical field of tunnel portal protection, and discloses a construction method of a small-spacing unsymmetrical pressure tunnel portal protection structure, a first tunnel and a second tunnel penetrate through a mountain, a first secondary lining is arranged in the first tunnel, and a second secondary lining is arranged in the second tunnel; a retaining wall is arranged on the side, close to the mountain body, of the first tunnel, a plurality of anchoring piles are arranged on the two sides of the first tunnel, and a backfill concrete layer is arranged on the base of the portal section of the second tunnel. According to the construction method of the small-spacing unsymmetrical pressure tunnel portal protection structure, the anchoring piles, the backfill concrete layer and the slope protection structure are arranged, and the anchoring piles and the backfill concrete layer improve the stability of the structure between the first tunnel and the second tunnel and the stability of the structures of the first tunnel and the second tunnel correspondingly; and meanwhile, the stability of the mountain slope is improved through the slope protection structure, and tunnel damage is avoided.
本发明涉及隧道洞口防护技术领域，且公开了一种小间距偏压隧道洞口防护结构的施工方法，穿过山体的第一隧道和第二隧道，所述第一隧道内设置有第一二次衬砌，所述第二隧道内设置有第二二次衬砌；所述第一隧道的靠近山体的一侧设置有挡墙，所述第一隧道的两侧均设置有多个锚固桩，所述第二隧道的洞口段基底设有回填混凝土层。该小间距偏压隧道洞口防护结构的施工方法，通过设置锚固桩、回填混凝土层和边坡防护结构，锚固桩和回填混凝土层分别提高第一隧道和第二隧道之间结构的稳定性以及第一隧道和第二隧道自身结构的稳定性，同时通过边坡防护结构提高山体边坡的稳定性，避免隧道损坏。
Construction method of small-spacing unsymmetrical pressure tunnel portal protection structure
The invention relates to the technical field of tunnel portal protection, and discloses a construction method of a small-spacing unsymmetrical pressure tunnel portal protection structure, a first tunnel and a second tunnel penetrate through a mountain, a first secondary lining is arranged in the first tunnel, and a second secondary lining is arranged in the second tunnel; a retaining wall is arranged on the side, close to the mountain body, of the first tunnel, a plurality of anchoring piles are arranged on the two sides of the first tunnel, and a backfill concrete layer is arranged on the base of the portal section of the second tunnel. According to the construction method of the small-spacing unsymmetrical pressure tunnel portal protection structure, the anchoring piles, the backfill concrete layer and the slope protection structure are arranged, and the anchoring piles and the backfill concrete layer improve the stability of the structure between the first tunnel and the second tunnel and the stability of the structures of the first tunnel and the second tunnel correspondingly; and meanwhile, the stability of the mountain slope is improved through the slope protection structure, and tunnel damage is avoided.
本发明涉及隧道洞口防护技术领域，且公开了一种小间距偏压隧道洞口防护结构的施工方法，穿过山体的第一隧道和第二隧道，所述第一隧道内设置有第一二次衬砌，所述第二隧道内设置有第二二次衬砌；所述第一隧道的靠近山体的一侧设置有挡墙，所述第一隧道的两侧均设置有多个锚固桩，所述第二隧道的洞口段基底设有回填混凝土层。该小间距偏压隧道洞口防护结构的施工方法，通过设置锚固桩、回填混凝土层和边坡防护结构，锚固桩和回填混凝土层分别提高第一隧道和第二隧道之间结构的稳定性以及第一隧道和第二隧道自身结构的稳定性，同时通过边坡防护结构提高山体边坡的稳定性，避免隧道损坏。
Construction method of small-spacing unsymmetrical pressure tunnel portal protection structure
一种小间距偏压隧道洞口防护结构的施工方法
YUAN WEIMING (author) / ZENG QINGSHENG (author) / CAI WENWU (author) / HUANG PEICHENG (author) / HAO PANPAN (author)
2024-12-06
Patent
Electronic Resource
Chinese
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