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

Inactive Publication Date: 2013-06-05
SHANDONG UNIV OF SCI & TECH
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  • Claims
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Problems solved by technology

Therefore, the technical measures adopted in the existing construction methods for protecting the existing adjacent buildings are all passive, and cannot form a comprehensive protection for the existing buildings that pass through the side. Once an accident occurs, it will cause adverse effects on the normal use of the building. Impact

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  • Tunnel construction method capable of protecting existing building
  • Tunnel construction method capable of protecting existing building
  • Tunnel construction method capable of protecting existing building

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Embodiment Construction

[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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Abstract

The invention discloses a tunnel construction method capable of protecting the existing building. The method comprises the steps: reinforcing a plurality of vertical rows of soil bodies out of a tunnel; reinforcing a plurality of transverse rows of soil bodies out of the tunnel; forward supporting; tunneling and supporting far away from one side of the existing building; tunneling and supporting close to one side of the existing building; and secondly lining. The tunnel construction method is a systematical and complete comprehensive protective measure adopted in the whole construction process, so that the complete protection effect to the existing building at the opposite side can be achieved, and the influence to the existing building at the opposite side can be furthest reduced during tunneling.

Description

technical field [0001] The invention relates to construction engineering, in particular to a tunnel construction method. Background technique [0002] With the rapid development of underground transportation, urban underground tunnels have formed a huge network. The underground tunnel network is quite dense in some parts of large cities, and it is inevitable to pass under or sideways through existing buildings. Due to the large scale and depth of excavation in tunnel engineering, it will cause redistribution of internal stress in the surrounding soil. The side penetration of existing buildings has strict requirements on deformation (absolute settlement, uneven settlement, etc.), excessive deformation will affect the normal use of existing buildings, and even pose a huge threat to life and property. Therefore, how to reduce the impact on existing buildings during tunnel construction and how to protect existing buildings after completion is a problem that people have always w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/00E21D11/00E21D11/10
Inventor 王渭明高盟王磊王智福李川尹子山
Owner SHANDONG UNIV OF SCI & TECH
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