Shield construction method of tunnel penetrating shallow-buried water

Abstract

The invention disclose a shield construction method of a tunnel penetrating a shallow-buried water to implement the shield construction in a shield tunneling strata of a shallow-buried water with burial depth less than one times shield tunnel diameter. The shield construction method comprises the following steps that before a shield device penetrates through the shield tunneling strata of the shallow-buried water with tunnel burial depth less than one times shield tunnel diameter, the earth filling and construction are performed on the position above the shield tunneling strata of the shallow-buried water, and an artificial island is formed; the building materials of the artificial island are clayey soil. When the clayey soil is used for filling, the clayey soil is compacted in layers, andthe compaction degree is no less than 95%; the shield device drives through the shallow-buried water; and green landscape treatment is carried out on the artificial island. According to the shield construction method of the tunnel penetrating the shallow-buried water, risks of site construction is lowered; the structure is safe and economic requirements of the project are met; and the construction speed is high and construction period is shortened.

Description

technical field

[0001] The invention relates to the field of tunnel construction, in particular to a shield construction method for tunnels passing through shallow buried waters. Background technique

[0002] At present, the domestic transportation field is booming, and the construction of railways, highways, and urban rail transit in various places is in full swing. The use of shield tunneling in these fields is becoming more and more common, and shield tunneling has become the mainstream. In these projects, shield tunnels often pass through waters such as rivers, rivers, and lakes. In recent years, there have been some shallow buried shield tunnels passing through waters, and these shallow tunnels are even buried less than twice the diameter of the shield tunnel.

[0003] To sum up, if the buried depth is less than twice the diameter of the shield tunnel, there may be insufficient vertical pressure during operation, and the shield tunnel will float up, endangering the safe...

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