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A platform for research: civil engineering, architecture and urbanism
Waterproof structure suitable for underground tunnel with span and height larger than or equal to 20 m and construction method
The invention discloses a waterproof structure suitable for an underground tunnel with the span and the height larger than or equal to 20 m and a construction method. The method comprises the steps that anchor rods are inserted into tunnel wall rocks in the circumferential direction of a tunnel; a nanometer steel-imitating fiber concrete layer for primary support is formed on the inner surface of the tunnel wall rock through nanometer steel-imitating fiber concrete, and the anchor rod penetrates through the nanometer steel-imitating fiber concrete layer; a waterproof structure layer at least covering the nanometer steel-imitating fiber concrete layer is arranged on the side, away from the hole wall rock, of the nanometer steel-imitating fiber concrete layer, the waterproof structure layer is provided with a drainage structure, and the anchor rod penetrates through the waterproof structure layer and is in water-tight connection with the waterproof structure layer; a steel reinforcement framework at least comprising the waterproof structure layer is arranged on the side, away from the nanometer imitation steel fiber concrete layer, of the waterproof structure layer in the circumferential direction of the tunnel, and the steel reinforcement framework is connected with the anchor rods; and at least part of the steel reinforcement framework is contained in cellulose-doped concrete for calendaring and leveling, so that a cellulose concrete layer for secondary supporting is formed.
本申请公开了适用于跨度和高度均≥20米的地下隧道防水结构及施工方法。方法包括沿隧道周向的洞壁岩石插入锚杆；在隧道洞壁岩石内表面使用纳米仿钢纤维混凝土形成用于初期支护的纳米仿钢纤维混凝土层，锚杆穿过纳米仿钢纤维混凝土层；在纳米仿钢纤维混凝土层背离洞壁岩石的一侧设置至少覆盖纳米仿钢纤维混凝土层的防水结构层，防水结构层设置排水结构，锚杆穿过防水结构层并与防水结构层水密性连接；在防水结构层背离纳米仿钢纤维混凝土层的一侧沿隧道周向设置至少包含防水结构层的钢筋骨架，钢筋骨架与所述锚杆连接；使用掺纤维素混凝土将至少部分钢筋骨架包含在内压光找平，以形成二次支护用的纤维素混凝土层。
Waterproof structure suitable for underground tunnel with span and height larger than or equal to 20 m and construction method
The invention discloses a waterproof structure suitable for an underground tunnel with the span and the height larger than or equal to 20 m and a construction method. The method comprises the steps that anchor rods are inserted into tunnel wall rocks in the circumferential direction of a tunnel; a nanometer steel-imitating fiber concrete layer for primary support is formed on the inner surface of the tunnel wall rock through nanometer steel-imitating fiber concrete, and the anchor rod penetrates through the nanometer steel-imitating fiber concrete layer; a waterproof structure layer at least covering the nanometer steel-imitating fiber concrete layer is arranged on the side, away from the hole wall rock, of the nanometer steel-imitating fiber concrete layer, the waterproof structure layer is provided with a drainage structure, and the anchor rod penetrates through the waterproof structure layer and is in water-tight connection with the waterproof structure layer; a steel reinforcement framework at least comprising the waterproof structure layer is arranged on the side, away from the nanometer imitation steel fiber concrete layer, of the waterproof structure layer in the circumferential direction of the tunnel, and the steel reinforcement framework is connected with the anchor rods; and at least part of the steel reinforcement framework is contained in cellulose-doped concrete for calendaring and leveling, so that a cellulose concrete layer for secondary supporting is formed.
本申请公开了适用于跨度和高度均≥20米的地下隧道防水结构及施工方法。方法包括沿隧道周向的洞壁岩石插入锚杆；在隧道洞壁岩石内表面使用纳米仿钢纤维混凝土形成用于初期支护的纳米仿钢纤维混凝土层，锚杆穿过纳米仿钢纤维混凝土层；在纳米仿钢纤维混凝土层背离洞壁岩石的一侧设置至少覆盖纳米仿钢纤维混凝土层的防水结构层，防水结构层设置排水结构，锚杆穿过防水结构层并与防水结构层水密性连接；在防水结构层背离纳米仿钢纤维混凝土层的一侧沿隧道周向设置至少包含防水结构层的钢筋骨架，钢筋骨架与所述锚杆连接；使用掺纤维素混凝土将至少部分钢筋骨架包含在内压光找平，以形成二次支护用的纤维素混凝土层。
Waterproof structure suitable for underground tunnel with span and height larger than or equal to 20 m and construction method
适用于跨度和高度均≥20米的地下隧道防水结构及施工方法
HU YINGXIN (author) / SONG TAO (author) / TANG QIANG (author) / YE JI (author) / WANG YUNYANG (author) / TIAN LEI (author) / SHEN ZHIQIANG (author)
2024-01-19
Patent
Electronic Resource
Chinese
IPC:
E21D
SHAFTS
,
Schächte
/
C04B
Kalk
,
LIME
/
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C09D
Überzugsmittel, z.B. Anstrichstoffe, Firnisse oder Lacke
,
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS
/
E21F
Sicherheitsvorrichtungen, Förderung, Auffüllen oder Bergversatz, Rettungswesen, Bewetterung oder Entwässerung in oder von Gruben oder Tunnels
,
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
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