梯形背贴式止水带无中间接头安装工艺 若止水带施工时在其沿线的某一位置存在接头，则该位置容易出现渗漏水。
There is no intermediate joint installation technology for the trapezoidal back type water stop belt. If there is a joint at a certain position along the construction of the water stop belt, the leakage water is easy to appear in the position.
对于有排水系统的隧道，止水带无接头安装工艺与传统的止水带安装工艺不同，它事先在衬砌基础内按环向施工缝的间距预留止水带安装槽。
For the tunnel with drainage system, there is no joint installation technology for the water stop belt, which is different from the traditional installation process of the water stop belt. It is reserved the installation groove of the water stop belt in the lining foundation according to the spacing between the circumferential construction joints.
安装止水带时，用上述方法先通条将上部止水带固定在壁面上，止水带下端插入预留的安装槽内，并使梯形止水带的排水孔与下部的波纹排水管连通。然后用防水混凝土固定植入在安装槽内的止水带。后浇注衬砌混凝土。
Install sealing strip, using the above method to the upper water stop belt cleaner fixed on the wall surface, the waterstop is inserted into the installation slot reserved within the drainage drainage hole communicated with a corrugated and trapezoidal strip and the lower part of the tube. Then, the waterproof concrete is fixed and fixed into the water stop belt in the installation groove. Concrete pouring at the end of the lining.
这样，在衬砌混凝土施工结束后，每条止水带的中间均无接头，并且每条环向施工缝上都有一道通向隧道排水系统的排水孔。
Thus, after the construction of the lining concrete, there is no joint in the middle of each sealing strip, and each ring has a drainage hole leading to the drainage system of the tunnel on the construction joint.
梯形外贴式橡胶止水带规格
梯形外贴式橡胶止水带规格
（１ ）隧道衬砌施工缝梯形背贴排水止水带具有排水功能，在施工缝部位对渗水先排后堵，可实现“无压止水”。
(1) the trapezoidal back sticking drainage strip has the drainage function, and it can realize the water stop without pressure at the construction joint".
（２ ）梯形背贴式止水带保留了一般传统背贴式止水带的易安装性，梯形造型与合理的几何参数使其翼缘在混凝土浇筑工间与工后均能保持良好状态。
(2) the trapezoidal back type water stop strip retains the easy installation of the traditional back type water stop belt, and the trapezoidal shape and reasonable geometric parameters make the flange keep good condition in the concrete pouring workshop and after the construction.
（３ ）背贴式止水带适宜用于有拱架初期支护的二次衬砌施工缝防水，中埋式止水带适用于支护结束后壁面不规整的二次衬砌施工缝防水。设计与施工时可据实际条件灵活选用止水带形式。
(3) the back stick type waterstop is suitable for structure early two lining construction joints waterproof, suitable for medium buried waterstop supporting end wall irregular two waterproof lining construction joints. In the design and construction, the waterproof belt can be flexibly chosen according to the actual conditions.
（４ ）有拱架和喷射混凝土联合初期支护的二次衬砌施工中，假顶辅助安装技术有助于背贴式止水带在隧道顶部防水的可靠性。
(4) structure and concrete combined with initial support of the two lining construction, installation technology of false roof assist helps back stick type waterstop in the top of the tunnel waterproof reliability.
（５ ）采用在衬砌基础留槽埋管，可将止水带无中间接头工艺应用于梯形背贴排水止水带的安装。
(5) using the buried pipe in the lining foundation, the water stop belt without intermediate joint process can be applied to the installation of the trapezoidal back sticking drainage waterproof belt.