Tunnel construction method capable of protecting existing building
A technology for the construction of existing buildings and tunnels. It is used in tunnels, tunnel linings, and earth-moving drilling. It can solve problems such as the inability to penetrate existing buildings and the impact of normal use of buildings, so as to increase overall stiffness and reduce effect of influence
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[0028] A tunnel construction method for protecting existing buildings, the specific operation steps are as follows figure 1 Sequence shown:
[0029] 1. Reinforcement construction of vertically arranged soil outside the tunnel;
[0030] 2. Reinforcement construction of horizontal row soil outside the tunnel;
[0031] 3. Use the grouting small conduit construction method for advanced support construction;
[0032] 4. Carry out tunnel excavation and support construction away from the side of existing buildings;
[0033] 5. Carry out tunnel excavation and support construction near the side of the existing building;
[0034] 6. Dismantling and doing secondary lining construction.
[0035] The entire construction plan and facade layout is as follows: figure 2 and image 3 shown;
[0036] Steps 1 and 2 as in Figure 4 As shown, firstly, the soil is reinforced downward from the depth of the tunnel in the corresponding interval 1m outside the tunnel. The width of the reinforce...
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