The utility model relates to a subway shield segment, which is composed of an arc-shaped plate made of an inner corrugated steel plate and an outer corrugated steel plate connected by a connecting bolt and used as a framework to cast high-strength concrete. The two sides of the wave valley of the inner corrugated steel plate and the outer corrugated steel plate are provided with studs; the axial ends of the plate are provided with L-shaped splicing notches; the radial ends of the plate are provided with rubber butt plates, and the radial ends of the plate are provided with rubber butt plates There are two bolt slots and arc bolt holes at the end for installing arc connecting bolts connecting adjacent pieces. The advantages of the shield segment are that it does not need to bind the reinforcement cage manually, so it is easy to make and convenient for industrial production; the stress characteristics of the corrugated steel plate are good, which can effectively disperse the stress concentration of the load, so that the shield segment is not easy to be damaged; the gap of the corrugated steel plate skeleton is large, which is easy to be tamped during the concreting; the splicing groove butt joint is adopted between the shield tube ring and the ring, and the butt joint is added with sealing waterproof materials, which can be lifted The overall strength and waterproof performance of the shield pipe of high speed railway.
【技术实现步骤摘要】
一种地铁盾构管片
本技术涉及地铁隧道建筑,特别是一种地铁盾构管片。
技术介绍
目前,地铁隧道一般采用盾构施工,盾构管片是盾构施工的主要装配构件,是隧道的最内层屏障,承担着抵抗土层压力、地下水压力及一些特殊荷载的作用。盾构管片是盾构法隧道的永久衬砌结构,直接关系到隧道的整体质量和安全,影响着隧道的防水性能及耐久性能。目前的地铁隧道由圆弧形片状钢筋混凝土构成的盾构管片对接构成。盾构管片片与片之间和环与环之间采用通缝对接,对接处用密封条密封防水。这种盾构管片的缺点是:①以钢筋笼作骨架,结构复杂,绑扎钢筋笼费工费时,不利于工厂批量化生产;②受人为因素限制,钢筋笼在混凝土中的位置不易摆放精准,导致预制的盾构管片在轴向和径向同时分布荷载时,应力和应变不均匀,盾构管片容易受损;③在预制过程中混凝土不易振捣密实,影响盾构管片的强度;④盾构管环与环之间采取齐头对接,密封防水性能不易保持持久。
技术实现思路
为克服上述现有地铁盾构管片的缺陷,本技术提供一种结构简单、强度高、预制效率高、密封防水性能持久的地铁盾构管片。为实现上述目的,本技术提供的地铁盾构管片,由波峰通过连接螺栓固定连接的内波纹钢板和外波纹钢板作骨架浇筑高强混凝土制成的圆弧形片体构成;内波纹钢板和外波纹钢板的波谷两侧面上布有栓钉;片体的轴向两端有“L”形拼接企口;片体的径向两端粘附有橡胶对接板,片体的径向两端有两个安装连接相邻片体的弧形螺栓所用的螺栓槽和弧形螺栓孔。与现有地铁盾构管片相比,本技术具有以下优点:1、本技术地铁盾构 ...
【技术保护点】
1.一种地铁盾构管片,其特征在于,由波峰通过连接螺栓(9)固定连接的内波纹钢板(2)和外波纹钢板(10)作骨架浇筑高强混凝土(11)制成的圆弧形片体(3)构成;内波纹钢板(2)和外波纹钢板(10)的波谷两侧面上布有栓钉(1);片体的轴向两端有“L”形拼接企口(8);片体的径向两端粘附有橡胶对接板(6),片体的径向两端有两个安装连接相邻片体的弧形螺栓(7)所用的螺栓槽(5)和弧形螺栓孔(4)。/n
【技术特征摘要】
1.一种地铁盾构管片,其特征在于,由波峰通过连接螺栓(9)固定连接的内波纹钢板(2)和外波纹钢板(10)作骨架浇筑高强混凝土(11)制成的圆弧形片体(3)构成;内波纹钢板(2)和外波纹钢板(10)...
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