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2021-10

How to Lap the Starting Point of Lining of Tunnel Scar with Low Side Wall

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How the trolley overlaps with the low side wall is related to the specific construction technology of the construction unit. Generally speaking, the user needs to pour the low side wall first

How the trolley overlaps with the low side wall is related to the specific construction technology of the construction unit. Generally speaking, the user needs to pour the low side wall first, and the specific construction process will be clarified during the technical disclosure of the trolley. Therefore, corresponding marks will be made on the assembly drawing of the trolley. When pouring the low side wall, the user can refer to the assembly drawing of the trolley and construct it in place according to the size and position shown in the figure. During lining, the trolley shall move to the lining position and be positioned. The starting point of the side formwork of the trolley shall be closely attached to the pre-designed bonding jumper (surface).
In order to prevent the change of small-scale construction technology, the trolley is generally designed to overlap 5cm for adjustment. During the construction of some projects, the lining of the low side wall is poured together with the trolley, and the overlapping positioning is similar.

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