Single-hole geological radar automatic drilling rig arranged at cutter head center of tunneling machine

Abstract

The invention discloses a single-hole geological radar automatic drilling rig arranged at the cutter head center of a tunneling machine. The single-hole geological radar automatic drilling rig comprises an equipment entrance and exit hole, a rapid drilling machine, a borehole geological radar detection device and a carrying device, wherein the equipment entrance and exit hole is located at the cutter head center of the tunneling machine, the rapid drilling machine for the synchronous operation of tunneling and drilling and the borehole geological radar detection device are arranged in the hole, the carrying device comprises a carrying device support and an initiative angle adjusting device for adjusting an included angle between a drill bit of the rapid drilling machine or a borehole radar antenna hydraulic expansion link and the rotating axis of a cutter head of the tunneling machine, and the rapid drilling machine and the borehole geological radar detection device move relative to the device support, and the carrying device support is connected to the cutter head of the tunneling machine by a spherical joint for an equipment entrance and exit pipeline. The single-hole geological radar automatic drilling rig has the beneficial effects that the synchronous operation of tunneling and drilling can be realized, and the included angle between the eccentric casing drilling bit or the borehole radar antenna hydraulic expansion link and the rotating axis of the cutter head of the tunneling machine is adjusted.

Description

technical field [0001] The invention relates to a single-hole geological radar automatic drilling device, in particular to a single-hole geological radar automatic drilling device installed in the center of a cutter head of a tunnel boring machine. Background technique [0002] After entering the 21st century, a large number of major infrastructure projects such as water conservancy and hydropower projects, railway and highway traffic projects, and municipal subway projects have been put on the construction agenda, which has greatly promoted the construction of tunnel (cave) projects. At present, my country has become the world's tunnel ( Tunnel) is the country with the largest construction scale and the most difficult construction, and the construction method of tunnel boring machine is the inevitable trend and development direction of tunnel (hole) construction in my country. Forecasting technology research and equipment development is an urgent need for roadheader construct...

AI Technical Summary

Problems solved by technology

However, there are two problems in the existing advanced drilling methods of tunnel boring machines: (1) the cross-hole geological radar needs two or more boreholes to be implemented, because multiple boreholes cannot be drilled at the same time as the excavation operation. , and the routine step-changing process time of the roadheader cannot complete multiple drilling operations, so this is unacceptable for tunnel boring machine construction; (2) Due to the structural limitations of the tunnel boring machine, the advanced drilling machine can only Due to the opening angle (greater than 7°), there is a large blind area when the heading machine is drilling obliquely in the forward direction, and the geological conditions cannot be accurately ascertained, and major disaster sources are easily missed

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