Shield method tunnel lining structure pre-buried groove connecting element and installing method thereof

Abstract

The invention relates to a shield method tunnel lining structure pre-buried groove connecting element and an installing method thereof. The equipment installation after the shield method tunnel communication becomes an important limitation factor for influencing the long-term durability of the tunnel, and a method of additionally installing connecting elements for artificial pick drilling causes the problem that the stability and the durability of the connecting elements cannot conform to the existing design standard. A stripped sliding groove is annularly pre-buried in a lining structure, the cross section of the sliding groove is in a rectangular shape, a stripped notch with the smaller outer side and the greater inner side is formed inside a tunnel, the groove bottom is fixedly arranged on the lining structure through a double-head anchor nail, a plurality of T-shaped screw bolts capable of freely sliding are arranged in the sliding grooves, the end part enlarging heads of the T-shaped screw bolts are clamped and embedded in the sliding grooves, and the exposed parts of the T-shaped screw bolts inside the tunnel are fixed with a gasket through screw bolts. The groove connecting element and the installing method provided by the invention have the advantages that the groove connecting elements are pre-buried inside the shield method tunnel lining structure, the T-shaped screw bolts can freely slide in the pre-buried groove, and the exposed parts of the T-shaped screw bolts inside the tunnel can meet the equipment installing requirements in any positions.

Description

technical field [0001] The invention belongs to the technical field of tunnel engineering, and in particular relates to a pre-embedded groove connector of a shield tunnel lining structure and an installation method thereof. Background technique [0002] For the current rail transit projects in major cities in China, shield tunnels account for an increasing proportion. Under the premise that project quality and construction safety are the primary goals, various new materials, new processes, and new construction methods are constantly emerging. It has greatly promoted the construction benefits of the shield tunneling method, but the installation of various equipment after the tunnel is penetrated has become an important restrictive factor affecting the long-term durability of the tunnel. The stability and durability of the connectors are difficult to meet the current design standards, let alone the design goals of the century-old project. [0003] The connectors of relevant ...

AI Technical Summary

Problems solved by technology

[0002] For the current rail transit projects in major cities in China, shield tunnels account for an increasing proportion. Under the premise that project quality and construction safety are the primary goals, various new materials, new processes, and new construction methods are constantly emerging. It has greatly promoted the construction benefits of the shield tunneling method, but the installation of various equipment after the tunnel is penetrated has become an important restrictive factor affecting the long-term durability of the tunnel. The stability and durability of the connectors are difficult to meet the current design standards, let alone the design goals of the century-old project

[0003] The connectors of relevant equipment in the tunnel should have the characteristics of flexible installation position, simple operation, convenient maintenance or replacement, safe and reliable use, and the traditional manual pneumatic pick drilling method is difficult to meet these basic requirements

Images