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实用新型
CN209228390U 一种防水的隧道初期支护结构 失效 - 权利终止

一种防水的隧道初期支护结构
摘要：
本实用新型公开了一种防水的隧道初期支护结构，包括防水喷射混凝土层1、钢拱架2、遇水膨胀止水层3；所述遇水膨胀止水层3设置在防水喷射混凝土层1与钢拱架2之间，并与钢拱架2紧密贴敷。本实用新型结构简单，易于施工，能有效阻止由于钢拱架与喷射混凝土之间不密实引起的窜水，防止隧道渗漏水。
摘要（英）：

The utility model discloses a waterproof tunnel primary support structure which comprises a waterproof shotcrete layer 1, a steel arch frame 2 and a water-swelling water stop layer 3. And the water-swelling water-stopping layer 3 is arranged between the waterproof sprayed concrete layer 1 and the steel arch frame 2 and is tightly attached to the steel arch frame 2. The structure is simple, construction is easy, water channeling caused by incompactness between the steel arch frame and sprayed concrete can be effectively prevented, and water leakage of a tunnel is prevented.

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