Device and method for carrying TBM (tunnel boring machine) seismic wave advanced prediction instruments

Abstract

The invention discloses a device and a method for carrying TBM (tunnel boring machine) seismic wave advanced prediction instruments. The device for carrying the TBM seismic wave advanced prediction instruments comprises a seismic wave excitation machine carrying device and a seismic wave detector carrying device. The seismic wave excitation machine carrying device comprises bases, and the bases are arranged on slide rails axially arranged along tunnels, are connected with first driving mechanisms and can move along the slide rails under the driving effects of the first driving mechanisms; the first driving mechanisms are connected with a controller; an excitation machine is mounted at the tail end of a mechanical arm, the other end of the mechanical arm is mounted on the bases, the bases can move along the slide rails under the driving effects of the first driving mechanisms, and accordingly excitation can be carried out on different cross sections by the excitation machine; the mechanical arm is connected with second driving mechanisms, and angles of the excitation machine and angles of tunnel walls can be adjusted by the mechanical arm under the effects of the second driving mechanisms, so that excitation effects can be guaranteed; the first driving mechanisms and the second driving mechanisms are connected with the controller.

Description

technical field [0001] The invention relates to an automatic carrying device for a geological forecasting instrument used in a construction tunnel, in particular to a carrying device and method for a TBM seismic wave advanced forecasting instrument. Background technique [0002] With the continuous development of tunnel construction, TBM has been used more and more due to its advantages of "fast excavation speed, high hole quality and high economic benefit". However, TBM has poor adaptability to geological conditions. Under complex geological conditions, faults, broken zones, karst caves and other unfavorable geological factors are often encountered, which may easily cause major accidents such as TBM jamming or even machine crash. Therefore, it is extremely important to ascertain the geological conditions of the section where the tunnel passes. If it is known in advance whether there are faults, broken zones, karst caves and other adverse geological structures ahead of the e...

AI Technical Summary

Problems solved by technology

[0005] (1) The installation efficiency of the geophone is low: the installation of the geophone requires the connection of the transmission optical fiber, the fixed block, the geophone, etc., and the coupling with the wall. The existing common method uses a percussion drill to drill small holes on the wall to fix The blocks are fixed by metal rods and anchoring agents. This method is time-consuming and labor-intensive. It may also affect the coupling effect because the tunnel wall is soaked in water, and cannot obtain good detection data, which affects on-site construction. Therefore, there is an urgent need for a high-efficiency installation. , the automatic detector installation method with good coupling effect;

[0006] (2) The reusability of the acquisition system is poor: in the current tunnel detection method, the disassembly and recovery steps of the acquisition system are complicated, the fixed block that has been bonded for a long time is not easy to dismantle, and the cleaning of the anchoring agent takes a long time, so a convenient method is urgently needed Geophone installation method with fast and repeatable loading and unloading;

[0007] (3) The layout of the seismic source is inflexible: in the TBM tunnel, since the roadheader occupies most of the tunnel space, there is no condition for installing large-scale automation equipment. Limited installation range in vertical orientation

[0008] (4) It takes a long time to arrange the observation system: it takes a long time to manually arrange the observation system. Some patents have improved the automatic arrangement of the source and the receiver to a certain extent. However, due to the compact TBM process and the fast excavation speed, its automation level Still need to improve

Images