Shield equipment and construction method for isolated rock geology in shield tunnel settlement area
By using a combination method of detectors and airbags in shield tunnel construction, the solitary stone can settle by itself, solving the problem of blade wear or stuck caused by the shroud machine due to the solitary stone, and improving the construction continuity and efficiency.
CN114922644BActive Publication Date: 2025-03-25ANHUI HIGHWAY BRIDGE ENG CO LTD
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Patent Information
- Application Number
- CN202210739240.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-06-28
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2042-06-28
AI Technical Summary
Technical Problem
During the construction of the shield tunnel, when encountering lonely stones, the cutter plate of the shield machine is easily worn or stuck, resulting in the inability to dig normally.
Method used
A shield equipment and construction method for geology of lonely stones in shield tunnel settlement are used to detect the soil layer around the lonely stone through a detector, and the soil layer is expanded and compressed by airbags, so that the lonely stone can be subsided by itself into a predetermined cavity.
Benefits of technology
It effectively solves the problem that the shield machine cannot be dug normally, reduces production costs, improves work efficiency, and uses the self-weight of the lonely stone to support the equipment above.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention discloses a shield equipment for rock geology at the settlement site of a shield tunnel, comprising a geological soil layer, a shield machine is horizontally arranged in the geological soil layer, an outer shield is arranged around the outer side of the shield machine, a large cutter disc is installed on the front shield surface of the shield machine, an inner opening door is arranged at the bottom of the front shield of the shield machine, and the front shield includes a cylinder inside, the lifting rod of the cylinder is connected to an L-shaped lever arm through a connecting sleeve, a double-headed cutter disc drive device is installed on the L-shaped lever arm, and a longitudinal small cutter disc is installed at the front end of the double-headed cutter disc drive device. The shield equipment and construction method for rock geology at the settlement site of a shield tunnel described in the present invention utilizes the sedimentation method to process the rock, and utilizes the deadweight of the rock to settle into the artificially opened cavity below, thereby solving the technical problem that the shield machine cannot excavate normally, and the rock plays a role of supporting the upper machine after being filled, which is suitable for different working conditions and brings better use prospects.
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