Connected positioning method for lining-built tunnel piping
A tunnel segment and segment technology, which is applied in the field of tunnels, can solve the problems of low stability of tunnel construction quality, high requirements on the accuracy of the covering position, and unsatisfactory stress state of the segment, so as to reduce unstable factors. , The effect of improving the quality of the construction ring and improving the stress state of the structure
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[0021] Embodiment: The method for assembling and positioning lining tunnel segments involved in this embodiment:
[0022] A. Segment prefabrication, in which a raised plane 8 with a height of 1-5mm is preset in the middle of the block surface at both ends of the segment 2 and 6, that is, the concrete in the middle of the block surface of the segment 2 and 6 is slightly higher than the surrounding corners Concrete 1-5mm, so that when the segments 2 and 6 are assembled, the surrounding concrete surfaces are not in direct contact, which can effectively prevent the corners of the segments 2 and 6 from being cracked due to stress concentration, replacing the existing technology on the block surface How to stick a cork cushion. Elongated grooves 4 and 7 are preset on the raised plane 8, and the end surfaces of the grooves 4 and 7 are in the shape of a semicircle, and traverse the block surfaces at both ends of the segments 2 and 6, the grooves 4 and the grooves 7 have the same shap...
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