During jacking construction, the bolt connection stress of the segments displays a continuous V-shaped spatial pattern along the circumferential direction, with a decreasing trend during the jacking stage and an increasing trend during the unloading stage.
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Response characteristic of bolt connection stress to jacking effect in prefabricated assembled utility tunnel in Xiong'an New Area, China.
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The sentences
The bolt connection stress show an increasing trend during the unloading phase, reflecting an enhancement in the bolt clamping effect.