Equipped device and method for seismic wave advanced prediction for double-shield rock boring machine

Abstract

The invention discloses a seismic wave advanced prediction carrying device and method for a double-shield rock tunneling machine. The device comprises an automatic hydraulic shock device carried on afront shield of the tunneling machine and a movable detector arranging device arranged on an equipment bridge platform, the automatic hydraulic shock device comprises a control module, a hydraulic oilway and a shock execution module, the hydraulic oil way provides driving force for the shock execution module, and the shock execution module is arranged in a containing bin of the front shield of the tunneling machine and strikes a front shield reservation hole; the movable detector arranging device comprises a plurality of detectors, a sliding rail and a mechanical arm, the sliding rail is carried on the equipment bridge platform, one end of the mechanical arm is slidably connected with the sliding rail while the other end of the same is provided with an extensible rod, a detector is arranged at the end of the extensible rod, and the extensible rod is used for feeding the detector into a grouting hole; the control module receives information collected by the detector and sends a drivingcontrol order to the shock execution module, the mechanical arm and the detectors to realize seismic wave advanced prediction.

Description

technical field [0001] The invention relates to a seismic wave advanced forecasting device and method for a double-shield rock boring machine. Background technique [0002] In recent years, with the rapid development of my country's infrastructure construction, water conservancy and hydropower, traffic engineering, subway engineering, municipal engineering and other fields urgently need to excavate a large number of underground tunnel (hole) projects. The TBM (Tunnel Boring Machine) construction method has gradually replaced the traditional drilling and blasting method and has become the construction method with the highest priority in the construction of tunnels (caves) in my country by virtue of its high excavation efficiency, high construction safety and high quality. Among them, the double-shield TBM realizes one-time hole formation during tunnel construction (excavation, slag removal, lining grouting, etc.), effectively uses the tunnel space, and can well solve complex ...

AI Technical Summary

Problems solved by technology

[0007] (2) Shocking the segment directly will damage it and affect the lining effect, and the segment and the rock wall may not fit closely, so good detection data cannot be obtained; and the cutter head is double shield The key part of TBM equipment has a complex structure, and direct vibration on the cutter head may affect its construction performance, reduce the speed and efficiency of tunneling, and cause economic losses

[0008] (3) The layout of the geophone is not flexible enough

At present, the common practice is to manually use a drill to drill holes in the wall to arrange the geophones. This method is inefficient and will easily affect the TBM construction period.

[0009] At the same time, because the structure of the double-shield TBM is more complicated than that of the open TBM and the single-shield TBM, including the shortcomings of the inner available detection space being narrower, and the detection device is difficult to directly contact the tunnel wall under the influence of the lining segment, etc., It brings great difficulties to the advance prediction of seismic wave method

[0010] 1. Affected by the segment, the existing method cannot directly shock the rock mass around the tunnel, which affects the detection quality

Explosive sources have potential safety hazards and are easy to damage segments; hammering sources can only be used to excite vibrations by beating segments, and the energy is weak, and the contact between segments and rock mass is not dense, and there is a strong reflection interface, which seriously affects the vibration quality, resulting in the inability to obtain good detection data

[0011] 2. Lack of an automatic installation device and method for geophones suitable for segmental environments

At present, the common method is to manually open holes in the lining to arrange the geophones, which is inefficient and easy to cause damage to the segment

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