Reaction shield structure with high stabilizing effect for tunneling works

Abstract

The invention relates to a reaction shield structure with a high stabilizing effect for tunneling works. The reaction shield structure comprises a shield protective frame and an expanding plate; a buffer layer is arranged on the inner wall in the shield protective frame, a rotating shaft is connected to the upper end of the outer wall of the top of the buffer layer, a first protective plate is arranged on the outer wall of the rotating shaft, and fixing clamps are connected to the top of the outer wall of the first protective plate. The reaction shield structure has the advantages that a movable block can move left and right under interaction of a slide way and a second hydraulic cylinder, and friction resistance can be reduced during moving through the arrangement of the slide way, so that both time and labor are saved; besides, the expanding plate can be moved from the inside of a support under action of the second hydraulic cylinder to support walls of tunnels when the reaction shield structure is used for supporting the tunnels in different width, collapse of the tunnels during heading is avoided, and the reaction shield structure can create time for heading workers to escape in accident collapse of the tunnels.

Description

technical field [0001] The invention relates to the technical field of reaction shield devices, in particular to a reaction shield structure with strong stabilizing effects for tunnel excavation engineering. Background technique [0002] Tunnels refer to passages dug out of existing buildings or earth-rock structures for three-dimensional traffic, crossing mountains and ridges, underground passages, crossing rivers, crossing seas, pipeline transportation, underground cables, water conservancy projects, etc. Tunnels are not necessarily all Underground passages, which are only located under the ground, are called underground tunnels. In Taiwan, China, they are sometimes called underground passages. Tunnels are engineering buildings buried in the ground. They are a form of human use of underground space. There will be work when digging tunnels When personnel entered, a counter force shield structure for protecting staff attracted people's attention. [0003] A new type of shie...

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