Mechanical-hydraulic combined rock breaking TBM tunneling equipment and tunneling method thereof

Abstract

The invention discloses mechanical-hydraulic combined rock breaking TBM tunneling equipment. The mechanical-hydraulic combined rock breaking TBM tunneling equipment includes a cutter head, a rotary driving device, a propulsion cylinder, a hydraulic cutter rotation adjustment part and hydraulic cutting hob cutters; the hydraulic cutting hob cutters are disposed on the cutter head along the circumference; the hydraulic cutter rotation adjustment part is located at a front portion of the rotary driving device; an outer frame is located outside the rotary driving device; an outer frame upper supporting shoe is located behind the outer frame; a rear support and a water tank are located behind the outer frame upper supporting shoe, and the rear support is located between the outer frame upper supporting shoe and the water tank; a hydraulic cutter external water pipe is arranged on the water tank; and the water tank and the hydraulic cutting hob cutters are connected through the hydraulic cutter external water pipe and the hydraulic cutter rotation adjustment part. The mechanical-hydraulic combined rock breaking TBM tunneling equipment has the advantages of suitable penetration degree, high rock breaking efficiency and less energy consumption of rock breaking. The invention also discloses a tunneling method of the mechanical-hydraulic combined rock breaking TBM tunneling equipment.

Description

technical field [0001] The invention relates to the field of tunnels and underground engineering, in particular to the field of TBM tunnel construction under complex geological conditions. More specifically, it is mechanical-hydraulic combined rock-breaking TBM tunneling equipment. The invention also relates to a tunneling method of TBM tunneling equipment for combined mechanical-hydraulic rock breaking. Background technique [0002] The traditional TBM uses a mechanical hob to break rock, and the TBM hob often has three states when breaking rock, namely, small penetration, proper penetration and excessive penetration. [0003] Under the condition of a certain hob spacing, if the penetration is too small, the cracks generated under the cutter head will expand to the free surface of the broken rock (hole face) and form triangular rock slag flakes, or the cracks formed by two adjacent hobs. The generated horizontal cracks cannot intersect, and the rock ridge between the hobs...

AI Technical Summary

Problems solved by technology

[0008] However, if the above-mentioned first rock-breaking method is used to break rocks, the maximum force required to break rocks is relatively large, and the hob is easy to wear, so the rock-breaking efficiency is low;

[0009] Use the above-mentioned second rock-breaking method to break rocks. For example, the application number is: 201310188881.X, and the patent name is "Arrangement Method and Structure of High-Pressure Water Jet in TBM Cutterhead"; it is in the main structural form of traditional TBM cutterhead Basically, a number of high-pressure water nozzles are randomly arranged in the blank positions of the TBM cutter head, which can improve the rock-breaking efficiency of the TBM, reduce the temperature of the cutter head, and prevent dust and cool the environment; however, because it needs to be specially installed on the TBM cutter head The opening of the water knife has a complex structure, and the random cooling of the mechanical hob is not targeted. Because it is in the normal open state, it is easy to cause waste of water resources, high energy consumption for rock breaking, and the expected effect cannot be achieved.

[0010] For example, the application number is CN105736006A, and the patent name is "High Pressure Water Jet Full-Section Rock Tunneling Machine Cutter Design Method". The inventors Huo Junzhou and Zhu Dong changed the shape of the traditional circular cutter head and adopted two cross-shaped spoke layouts. , through the impact of water jets on the four spokes and the rotary extrusion of the cutter to break rocks, which reduces the energy consumption of rock breaking; but it has a large change to the traditional TBM cutter head, and the cost is high, which is not conducive to realization and application

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