Hydraulic-mechanical combined rock breaking TBM device and rock breaking method thereof

Abstract

The present invention discloses a hydraulic-mechanical combined rock-breaking TBM device. It includes a rotary drive, a propulsion cylinder, an outer frame, a hydraulic cylinder, a support shoe on the outer frame and a TBM cutter disc structure; the TBM cutter disc structure is installed at the front end of the rotary drive; the outer frame is located outside the rotary drive; the support shoe on the outer frame is located behind the outer frame and is connected to the outer frame through the propulsion cylinder; the TBM cutter disc structure includes a TBM cutter disc, a mechanical hob structure and a hydraulic cutting tool module; the mechanical hob structure and the hydraulic cutting tool module are both circumferentially installed on the TBM cutter disc; the hydraulic cutting tool module is installed between two adjacent mechanical hob structures. The present invention has the advantages of ensuring that the hydraulic cutting tool module is always in close contact with the rock face for water jet cutting, thereby improving the rock breaking efficiency. The present invention also discloses a rock breaking method of the hydraulic-mechanical combined rock-breaking TBM device.

Description

Technical Field

[0001] The present invention relates to the field of tunnel and underground engineering technology, in particular to the field of TBM tunnel construction under complex geological conditions, and more specifically to a hydraulic-mechanical combined rock-breaking TBM device. The present invention also relates to a rock-breaking method of the hydraulic-mechanical combined rock-breaking TBM device. Background Art

[0002] Traditional TBMs use mechanical cutters to break rocks. TBM cutters often have three states when breaking rocks, namely, too little penetration, appropriate penetration, and too much penetration. Under certain cutter spacing conditions, when the penetration is too little, the cracks generated under the cutter head will expand to the rock-breaking free surface (tunnel face) and form triangular rock chips, or the horizontal cracks generated by two adjacent cutters cannot intersect, and the rock ridges between the cutters cannot be cut and damaged. It takes many repeated rock breaking to achieve a good rock breaking effect, but this method will increase the energy consumption of rock breaking and affect the rock breaking efficiency; under certain cutter spacing conditions, when the penetration is too much, the rocks between adjacent cutters are cut into fine rock chips, particles, or even powder, and the rocks are over-broken, resulting in increased energy consumption and tool grinding; the appropriate penetration should form the largest rock breaking range with the minimum energy consumption and mechanism wear under certain cutter spacing conditions.

[0003] The rock-breaking penetration rate of conventional mechanical disc cutters with a constant cross-section is determined by TBM parameters and is adjusted for different face lithology types, but can only be adjusted for one type of face rock at a time. Due to the complex underlying geology and the staggered arrangement of rocks of various lithologies, the use of conventional machinery for rock breaking results in low efficiency, high energy consumption, and easy wear of the cutterhead. Furthermore, since it is difficult to find a suitable TBM penetration rate during construction, it is easy to cause loss of TBM cutting energy and wear of the cutterhead.

[0004] Conventional cutter structures used in existing TBM rock breaking methods include: the first rock breaking method is to use ordinary roller cutters to break rocks; the second rock breaking method is to randomly drill holes in the blank positions of the TBM cutter head and install water jet structures, so that the water jet structures and ordinary roller cutters are arranged at intervals, and hydraulic and mechanical combined rock breaking is adopted;

[0005] However, the first rock breaking method mentioned above requires a large maximum force to break the rock, and the cutter is easily worn, resulting in a low rock breaking efficiency.

[0006] The second rock breaking method mentioned above is used for rock breaking, such as the application number: 201310188881.X, and the patent name is "Arrangement method and structure of high-pressure water jets in the cutter head of a tunnel boring machine". On the basis of the main structure of the traditional TBM cutter head, a number of high-pressure water nozzles are randomly arranged at the blank positions of the TBM cutter head, which has the advantages of improving the rock breaking efficiency of the TBM, reducing the temperature of the cutter head, and preventing dust and cooling the environment. However, since it is necessary to specially open an opening on the TBM cutter head to install the high-pressure water jet, the structure is complex, and the mechanical roller cutter is randomly cooled, which is not targeted. Since it is in a normally open state, it is easy to cause waste of water resources, high energy consumption for rock breaking, and cannot achieve the expected effect.

[0007] For example, the application number is CN105736006A, and the patent name is "Design Method for High-Pressure Water Jet Full-Section Rock Tunneling Machine Cutter Head". The inventors Huo Junzhou, Zhu Dong and others changed the shape of the traditional circular cutter head and adopted a two-cross spoke layout. The rock is crushed by the impact of the water jet on the four spokes and the rotation and extrusion of the cutter, which reduces the energy consumption of rock crushing. However, the changes to the traditional TBM cutter head are relatively large, the cost is high, and it is not conducive to implementation and application.

[0008] With the development of society, the demand for the use of TBMs in tunnels and underground projects is getting higher and higher; therefore, there is an urgent need to develop a hydraulic-mechanical combined rock-breaking TBM excavation equipment and a rock-breaking method with high rock-breaking efficiency, low rock-breaking energy consumption, and low mechanical wear. Summary of the invention

[0009] The first purpose of the present invention is to provide a hydraulic-mechanical combined rock breaking TBM device to ensure that the hydraulic cutting tool module is always close to the rock face for water jet cutting, to ensure that the distance between the nozzle and the face is within the range of maximum nozzle injection force, to improve rock breaking efficiency, to reduce rock breaking energy consumption, and to reduce mechanical wear.

[0010] The second purpose of the present invention is to provide a rock breaking method for the hydraulic-mechanical combined rock breaking TBM device, so as to improve rock breaking efficiency, reduce rock breaking energy consumption, reduce mechanical wear, improve project progress and reduce project costs.

[0011] In order to achieve the first object of the present invention, the technical solution of the present invention is as follows: a hydraulic-mechanical combined rock breaking TBM device, including a rotary drive, a thrust cylinder, an outer frame, a hydraulic cylinder, a support shoe on the outer frame and a TBM cutterhead structure;

[0012] The TBM cutter disc structure is installed at the front end of the rotary drive and is located at the front side of the outer frame; the outer frame is located outside the rotary drive; the upper support shoe of the outer frame is located behind the outer frame and is connected to the outer frame through the propulsion cylinder; it is characterized in that: the TBM cutter disc structure includes a TBM cutter disc, a mechanical hob structure and a hydraulic cutting tool module;

[0013] The mechanical hob structure and the hydraulic cutting tool module are both circumferentially mounted on the TBM cutter disc and are arranged at intervals;

[0014] The hydraulic cutting tool module is installed between two adjacent mechanical hob structures.

[0015] In the above technical solution, the hydraulic cutting tool module includes a hydraulic cutting tool module frame, a thrust spring structure, a hydraulic cutting tool module thrust cylinder and a hydraulic cutting tool;

[0016] The thrust spring structure is located in the hydraulic cutting tool module frame;

[0017] The thrust cylinder of the hydraulic cutting tool module is located at the upper end of the thrust spring structure;

[0018] The hydraulic cutting tool is fixed to the lower end of the hydraulic cutting tool module frame.

[0019] In the above technical solution, the hydraulic cutting tool module also includes a hydraulic cutting tool module guide connecting cylinder and a fixing seat;

[0020] The hydraulic cutting tool module has multiple guide connecting cylinders;

[0021] The fixed ends of the hydraulic cutting tool module thrust cylinder and the hydraulic cutting tool module guide connection cylinder are both fixed on the fixed seat;

[0022] The telescopic end of the hydraulic cutting tool module thrust cylinder is connected to the upper plate of the thrust spring structure;

[0023] The lower plate of the thrust spring structure is fixed to the middle of the side wall of the hydraulic cutting tool module frame;

[0024] The telescopic end of the hydraulic cutting tool module guide connection cylinder is fixed to the upper end of the side wall of the hydraulic cutting tool module frame.

[0025] In the above technical solution, the water cutting tool comprises a high-pressure water pipeline, a high-pressure water cutting tool accompanying a rolling wheel and a tool center axis;

[0026] The two ends of the tool center axis are respectively fixed to the lower ends of the side walls of the hydraulic cutting tool module frame;

[0027] The high-pressure water cutting tool is accompanied by a rolling wheel sleeve on the center axis of the tool;

[0028] The high-pressure water pipeline passes vertically downward through the center axis of the tool and is fixed on the center axis of the tool;

[0029] The high-pressure water cutting tool is provided with a rolling bearing in the middle of the rolling wheel;

[0030] The rolling bearing is sleeved on the tool center shaft and is movably connected to the tool center shaft.

[0031] In the above technical solution, the high-pressure water cutting tool is accompanied by a plurality of rolling wheels;

[0032] The high-pressure water pipeline is located between the high-pressure water cutting tool and the accompanying rolling wheels which are arranged at intervals;

[0033] A fixing through hole is provided on the center axis of the tool;

[0034] A high-pressure water pipeline protection sleeve is provided on the outer periphery of the high-pressure water pipeline;

[0035] The high-pressure water pipe protection sleeve extends from the top to the bottom of the fixing through hole and is fixed on the fixing through hole;

[0036] The length of the lower end of the high-pressure water pipe protection sleeve extending out of the fixed through hole is less than the distance from the lower end of the roller accompanying the high-pressure water cutting tool to the center axis of the tool.

[0037] In the above technical solution, a nozzle is provided at the lower end of the high-pressure water pipe; the nozzle is located in the protective sleeve of the high-pressure water pipe;

[0038] An external interface of a high-pressure water pipeline is arranged on the outer side wall of the hydraulic cutting tool module frame;

[0039] The upper end of the high-pressure water pipeline passes through the side wall of the hydraulic cutting tool module frame and is connected to the external interface of the high-pressure water pipeline;

[0040] The high-pressure water pipeline protection sleeve is closely attached to the lower plate of the thrust spring structure.

[0041] In the above technical solution, the hydraulic cutting tool module is installed at the center between two adjacent mechanical hob structures;

[0042] When the TBM cutter disc is in an initial state, the length of the high-pressure water jet cutting tool and the rolling wheel extending out of the TBM cutter disc is greater than the length of the mechanical hob structure extending out of the TBM cutter disc;

[0043] When the TBM cutter disc is in working condition, the length of the high-pressure water cutting tool and the rolling wheel extending out of the TBM cutter disc is equal to the length of the mechanical hob structure extending out of the TBM cutter disc.

[0044] In the above technical solution, it also includes a water jet rotation adjustment part, a retractable water pipe, a water tank, a rear support, a shield, a bucket and a belt conveyor;

[0045] The water jet rotation regulating portion is located in front of the rotation drive and is coaxial with the rotation drive;

[0046] The water tank is located behind the rear support;

[0047] One end of the retractable water pipe is connected to the water jet rotation adjustment part, and the other end is connected to the water tank;

[0048] The external interface of the high-pressure water pipeline is connected to the water jet rotation regulating part through a connecting pipeline;

[0049] The shield is located at the side of the outer frame and is connected to the outer frame through the hydraulic cylinder; the rear support is located behind the support shoe on the outer frame; the belt conveyor is located on the inner side of the outer frame, and the bucket is located at the front end of the belt conveyor and at the front end of the outer frame.

[0050] In order to achieve the second object of the present invention, the technical solution of the present invention is: according to the rock breaking method of the hydraulic-mechanical combined rock breaking TBM device, it is characterized by:

[0051] Step 1: Align the TBM cutterhead structure to the position where the hole is to be excavated;

[0052] Step 2: Fix the outer frame, start the hydraulic-mechanical combined rock-breaking TBM device, and make the hydraulic-mechanical combined rock-breaking TBM device advance one stroke;

[0053] The support shoes on the outer frame hold the surrounding rock cave wall tightly and fix the frame of the hydraulic-mechanical combined rock-breaking TBM device;

[0054] The TBM cutterhead structure is rotated by the rotary drive, and the thrust cylinder applies thrust to the TBM cutterhead structure, and the TBM is pushed out and excavates forward, and the rear support provides support;

[0055] The hydraulic cutting tool module and the mechanical disc cutter structure rotate themselves and rotate with the TBM cutter head structure, breaking the rock mass synchronously;

[0056] The rock slag produced by the crushed rock mass is shoveled into the belt conveyor by the bucket and finally transported to the back of the machine for unloading; the thrust cylinder extends one stroke, and the TBM cutterhead structure and the components connected to the TBM cutterhead structure move forward one stroke accordingly;

[0057] Step 3: Repeat steps 1 to 2 to start the next trip operation until the specified distance is reached, that is, the excavation is completed.

[0058] In the above technical solution, in step 2, when the hydraulic cutting tool breaks the rock, the high-pressure water cutting tool is accompanied by a rolling wheel and is pressed against the tunnel surface under the action of the hydraulic cutting tool module thrust cylinder, the thrust spring structure and the hydraulic cutting tool module frame, and rolls on the tunnel surface, driving the high-pressure water pipeline to move, and the high-pressure water pipeline sprays a high-pressure water jet onto the tunnel surface to form the water jet cutting groove;

[0059] The mechanical roller cutter structure rolls on the rock of the tunnel face on both sides of the water jet cutting groove, causing the rock chips to collapse.

[0060] The present invention has the following advantages:

[0061] (1) The present invention innovates a new arrangement of the cutterhead of a hydraulic-mechanical combined rock-breaking TBM. A new hydraulic cutting tool module is installed at the center of the mechanical cutter spacing on the cutterhead to replace the simple superposition and combination of the existing TBM cutterhead high-pressure water jet nozzle and the mechanical cutter on the cutterhead. Without changing the existing TBM support and propulsion method, the adaptability of the hydraulic pipeline is adjusted to improve the rock-breaking ability of the high-pressure water jet, thereby redefining the excavation working method of the hydraulic-mechanical combined rock-breaking TBM.

[0062] (2) The hydraulic cutting tool module of the present invention is a modular roller cutter; the guide connecting cylinder of the hydraulic cutting tool module of the present invention plays a guiding and connecting role and is not subject to force; during actual operation, the thrust cylinder of the hydraulic cutting tool module of the present invention applies thrust, and the guide connecting cylinder of the hydraulic cutting tool module moves synchronously, and the applied force acts on the hydraulic cutting tool module frame through the thrust spring, thereby pushing the hydraulic cutting tool module of the present invention; the hydraulic cutting tool module of the present invention has two states, namely, an initial state and a rolling state; when the hydraulic cutting tool module of the present invention is in the initial state, the thrust spring is in a state without force and only plays a connecting role; when the hydraulic cutting tool module of the present invention is in a rolling state, the thrust spring is compressed and subjected to force, and plays a role in connecting and transmitting force;

[0063] (3) When the hydraulic cutting tool module and the mechanical hob structure of the present invention are in a non-working state on the TBM cutter disc, the hydraulic cutting tool module is in an initial stress-free state, and the high-pressure water cutting tool accompanying rolling wheel and the high-pressure water pipe nozzle are ahead of the TBM cutter disc plane and the mechanical hob module by a certain distance; when it is in a working state on the TBM cutter disc, the hydraulic cutting tool module first contacts the rock face and is subjected to the reaction force of the face, and the thrust spring contracts until the hydraulic cutting tool module and the mechanical hob are in the same plane, that is, the TBM cutter disc plane, and the high-pressure water cutting tool accompanying rolling wheel is always kept in a compressed rolling state in the working state; the high-pressure water cutting tool accompanying rolling wheel of the present invention is subjected to a small force, the purpose of which is to ensure that the hydraulic cutting tool module is always close to the rock face for water jet cutting; the hydraulic cutting tool module of the present invention shortens the distance between the tool and the rock wall, thereby improving the rock breaking efficiency; the high-pressure water cutting tool accompanying rolling wheel does not play a mechanical rolling role, but plays a rolling role and a role of protecting and driving the nozzle, and only bears part of the self-gravity and the reaction force borne by the close contact with the rock surface during water jetting;

[0064] (4) The hydraulic cutting tool module of the present invention only serves as a high-pressure water jet injection device, which reduces the functional complexity;

[0065] (5) The high-pressure water jet nozzle and pipeline of the present invention are provided with a protective mechanism, which can play a role in reducing nozzle wear;

[0066] (6) The high-pressure water jet nozzle of the present invention can be replaced, thereby extending the service life of the tool;

[0067] (7) The present invention can improve rock breaking efficiency, reduce rock breaking energy consumption, and reduce mechanical wear, which is of great significance to improving project progress and reducing project costs;

[0068] (8) The present invention can be implemented without major changes to the existing TBM cutterhead, and has a higher degree of industrial feasibility.

[0069] The hydraulic cutting tool module of the present invention is a more independent module (the high-pressure water cutting tool accompanying rolling wheel of the hydraulic cutting tool does not play the role of fracturing rocks, but only plays a rolling role), and its high-pressure water pipeline layout is simpler and can better protect the injection nozzle; the present invention can ensure that the accompanying cutting roller and the high-pressure water pipeline nozzle below can be closer to the rock, achieve a better injection effect, and better realize its water cutting function. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1 It is a schematic diagram of the working structure of the hydraulic-mechanical combined rock breaking TBM device of the present invention.

[0071] Figure 2 It is a schematic diagram of the top view of the structure of the hydraulic-mechanical combined rock-breaking TBM cutterhead of the present invention.

[0072] Figure 3 It is a schematic diagram of the top view of the water jet rotation adjustment part of the present invention.

[0073] Figure 4 This is a schematic diagram of the cross-sectional structure of the high-pressure water pipe docking interface of the water jet rotation adjustment part of the present invention.

[0074] Figure 5 This is a schematic diagram of rock breaking according to the present invention.

[0075] Figure 6 This is a schematic diagram of rock breaking using an existing mechanical cutter structure.

[0076] Figure 7 This is a schematic diagram of rock breaking by the hydraulic cutting tool module of the present invention.

[0077] Figure 8 It is a schematic diagram of the hydraulic cutting tool module of the present invention breaking rocks on the tunnel face.

[0078] Fig. 9 This is a schematic diagram of the main structure of the hydraulic cutting tool module in the initial state of the present invention.

[0079] Fig.10 This is a schematic diagram of the main structure of the hydraulic cutting tool module of the present invention in working state.

[0080] Fig.11 It is a schematic structural diagram of the initial state of the hydraulic-mechanical combined rock-breaking TBM cutterhead and the mechanical cutter structure of the hydraulic-mechanical combined rock-breaking TBM of the present invention.

[0081] Fig.12 The present invention is a schematic structural diagram of the working states of the hydraulic-mechanical combined rock-breaking TBM cutterhead and the mechanical cutter structure of the hydraulic-mechanical combined rock-breaking TBM cutterhead of the present invention.

[0082] Fig.13 This is a schematic diagram of a partial perspective structure of a hydraulic cutting tool according to the present invention.

[0083] Fig.14 for Fig.13 Enlarged view of point A.

[0084] Fig.15 for Fig.14 Schematic diagram of the top view structure.

[0085] Fig.16 It is a schematic diagram of the top view of the structure of the hydraulic cutting tool of the present invention.

[0086] Fig.17 It is a schematic diagram of a partial perspective structure of a hydraulic cutting tool of the present invention from the left side.

[0087] Fig.18This is a comparison chart of the injection efficiency of the nozzles of the present invention.

[0088] Figure 1 In the figure, E represents the rock surface before cutting (i.e., the tunnel face; the tunnel face only represents a surface, which is the rock surface exposed in front of the TBM (the rock wall facing before the tunnel is opened), and E is the rock mass to be excavated in the direction of the TBM's advance).

[0089] Figure 5 In the figure, S represents the mechanical hob trajectory.

[0090] Figure 6 In the figure, A represents the rock surface before cutting; B represents the rock surface after cutting; and M represents the rotation direction of the disc cutter.

[0091] Figure 7 In the diagram, A indicates the rock surface before cutting; B indicates the rock surface after cutting; M indicates the rotation direction of the roller cutter; FN indicates the push preload force; T indicates the water jet impact force; H indicates the cutting depth; and G indicates the cutting depth line.

[0092] Figure 6 This is a schematic diagram of the cutting effect of a traditional mechanical hob; Figure 6 This shows that the traditional mechanical roller cutter plays the role of both cutting and fracturing the rock when breaking the rock;

[0093] Figure 7 It is a schematic diagram of the effect of a roller carrying a high-pressure water jet pipe to spray out a water tank of a certain depth; Figure 7 This indicates that the high-pressure water jet cutting tool accompanied by the rolling wheel does not play the role of fracturing rocks, but plays the role of protecting the high-pressure water pipeline and cutting water jet grooves.

[0094] Figure 8 In the figure, M represents the rotation direction of the TBM; T1 represents the water jet cutting trace and direction behind the first hydraulic cutting tool module (i.e., the water jet cutting trace and direction formed by the first hydraulic cutting tool module using high-pressure water jet to cut rock); S1 represents the first hydraulic cutting tool module; T2 represents the water jet cutting trace and direction behind the second hydraulic cutting tool module; S2 represents the second hydraulic cutting tool module; T3 represents the water jet cutting trace and direction behind the third hydraulic cutting tool module; S3 represents the third hydraulic cutting tool module; T4 represents the water jet cutting trace and direction behind the fourth hydraulic cutting tool module; S4 represents the fourth hydraulic cutting tool module; T5 represents the water jet cutting trace and direction behind the fifth hydraulic cutting tool module; S5 represents the fifth hydraulic cutting tool module; T6 represents the water jet cutting trace and direction behind the sixth hydraulic cutting tool module; S6 represents the sixth hydraulic cutting tool module. Fig.11 A in the figure represents the plane of the TBM cutterhead structure 23; Fig.12A in FIG. 2 represents the plane of the TBM cutter head structure 23 .

[0095] Fig.18 The figure shows the comparison diagram of the utilization efficiency of the high-pressure water sprayed by the nozzle of the present invention; wherein, L represents the core section of the jet; M represents the transition section; A represents the initial section; and B represents the basic section. When the hydraulic cutting tool module 7 of the present invention is in working state on the TBM cutter head, the hydraulic cutting tool module first contacts the rock face and is subjected to the reaction force of the face. The thrust spring contracts until the hydraulic cutting tool module and the mechanical hob structure are in the same plane, i.e., the TBM cutter head plane. In the working state, the hydraulic cutting tool module always keeps the high-pressure water cutting tool accompanying rolling wheel in a compressed rolling state; the high-pressure water cutting tool accompanying rolling wheel is subjected to a small force, in order to ensure that the hydraulic cutting tool module is always close to the rock face for water jet cutting; therefore, 90% of the high-pressure water jet sprayed by the present invention during rock breaking is in the core section of the jet, and the high-pressure water jetting utilization efficiency of the present invention is relatively high.

[0096] In the prior art, the high-pressure water jet nozzle of the TBM cutterhead is simply superimposed on the cutterhead. The high-pressure water jet nozzle is installed on the plane of the TBM cutterhead. Since there is a distance of half the blade of the mechanical cutter between the high-pressure water jet nozzle and the rock face, the distance before the high-pressure water jet reaches the rock face is relatively large, and the water jet pressure drops significantly. The distance of the high-pressure water jet in the initial section, that is, the effective jet section, is relatively small, resulting in energy consumption.

[0097] The hydraulic cutting tool module adopted in the present invention can roll on the tunnel face like a mechanical hob through the high-pressure water cutting tool accompanied by a rolling wheel, and the nozzle of the high-pressure water jet channel can be close to the tunnel face during the rolling process of the tool, which can more effectively cut the rock tunnel face, thereby achieving the purpose of improving rock breaking efficiency and reducing rock breaking energy consumption.

[0098] In the figure, 1-hydraulic cutting tool module frame, 2-thrust spring structure, 3-hydraulic cutting tool module thrust cylinder, 4-hydraulic cutting tool module guide connecting cylinder, 5-fixed seat, 6.1-high-pressure water pipeline, 6.2-high-pressure water cutting tool accompanying rolling wheel, 6.21-rolling bearing, 6.3-tool center axis, 6.31-fixed through hole, 6.4-high-pressure water pipeline protection sleeve, 6.5-nozzle, 6.6-high-pressure water pipeline external interface, 7-hydraulic cutting tool module, 9-mechanical hob structure, 10-TBM cutter head, 11-water jet rotary adjustment Section, 11.1-high-pressure water pipe docking interface, 11.11-front-end module of high-pressure water pipe docking interface, 11.12-rear-end module of high-pressure water pipe docking interface, 11.2-water jet rotary adjustment disc, 12-rotation drive, 13-thrust cylinder, 14-rear support, 15-retractable water pipe, 16-water tank, 17-outer frame, 18-shield, 19-hydraulic cylinder, 20-support shoe on outer frame, 21-bucket, 22-belt conveyor, 23-TBM cutter disc structure, 25-hydraulic-mechanical combined rock breaking TBM device, 26-water jet grooving. DETAILED DESCRIPTION

[0099] The following is a detailed description of the implementation of the present invention in conjunction with the accompanying drawings, but they do not constitute a limitation of the present invention and are only used as examples. At the same time, the advantages of the present invention are made clearer and easier to understand through the description.

[0100] Referring to the attached drawings, it can be seen that the hydraulic-mechanical combined rock breaking TBM device includes a rotary drive 12, a thrust cylinder 13, a rear support 14, an outer frame 17, a shield 18, a hydraulic cylinder 19, a support shoe 20 on the outer frame, a bucket 21, a belt conveyor 22 and a TBM cutter head structure 23;

[0101] The TBM cutter disc structure 23 is installed at the front end of the rotary drive 12 and is located in front of the outer frame 17; the outer frame 17 is located outside the rotary drive 12; the shield 18 is located on the side of the outer frame 17 and is connected to the outer frame 17 through the hydraulic cylinder 19; the outer frame upper support shoe 20 is located behind the outer frame 17 and is connected to the outer frame 17 through the propulsion cylinder 13; the rear support 14 is located behind the outer frame upper support shoe 20; the belt conveyor 22 is located inside the outer frame 17, and the bucket 21 is located at the front end of the belt conveyor 22 and at the front end of the outer frame 17; the TBM cutter disc structure 23 includes a TBM cutter disc 10, a mechanical hob structure 9 and a hydraulic cutting tool module 7;

[0102] The mechanical hob structure 9 and the hydraulic cutting tool module 7 are both circumferentially mounted on the TBM cutter head 10 and are arranged at intervals;

[0103] The hydraulic cutting tool module 7 is installed at the center position between two adjacent mechanical hob structures 9 (such as Figure 1 , Figure 2 shown).

[0104] The rotary drive is located behind the combined rock-breaking TBM cutterhead, and the propulsion cylinder is located outside the TBM frame and behind the outer frame, and is used to propel the TBM; the rotation adjustment unit is located in front of the rotary drive and can rotate synchronously with the rotary drive device; the combined rock-breaking TBM working system includes a transmission box and a hydraulic feed system; the rotary drive is equipped with a motor, a torque speed sensor, and a reducer, and the two ends of the torque speed sensor are respectively connected to the motor and the reducer to control the rotation of the combined rock-breaking TBM cutterhead. The hydraulic feed system includes a propulsion cylinder, which is hinged to the thrust rod and connected to the pressure sensor to realize cutting in and out (such as Figure 1 , Figure 2 as shown).

[0105] Furthermore, it also includes a water jet rotation adjustment part 11, a retractable water pipe 15 and a water tank 16;

[0106] The water jet rotation regulating part 11 is located in front of the rotation drive 12 and is coaxial with the rotation drive 12; the high-pressure water pipeline docking interface of the water jet rotation regulating part is a connection structure for external high-pressure water and rock-breaking high-pressure water; the water jet rotation regulating part of the TBM includes a high-pressure water pipeline docking interface and a water jet rotation regulating part disc, which is located in front of the rotation drive and is coaxial with the rotation drive; the high-pressure water pipeline docking interface of the water jet rotation regulating part is a connection structure for external high-pressure water and rock-breaking high-pressure water; the high-pressure water pipeline docking interface corresponds to the water jet position on the combined rock-breaking TBM cutterhead one by one; when the TBM is working, the water jet external water pipeline can be docked with the high-pressure water pipeline docking interface to achieve synchronous rotation with the TBM cutterhead;

[0107] The water tank 16 is located behind the rear support 14; the water tank is located on the laid track at the rear end of the TBM to ensure water supply; there are pressurizing devices and regulating devices in the water tank, which can provide high-pressure water for hydraulic cutting and control the flow rate of high-pressure water by adjusting the water pressure of the high-pressure water;

[0108] One end of the retractable water pipe 15 is connected to the water jet rotation adjustment part 11, and the other end is connected to the water tank 16; the retractable water pipe can freely adjust the length of the water pipe as the TBM advances to meet the working requirements;

[0109] The high-pressure water pipe external interface 6.6 is connected to the water jet rotation regulating part 11 through a connecting pipe (such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Fig. 9as shown).

[0110] Furthermore, the water jet rotation regulating part 11 comprises a high-pressure water pipe docking port 11.1 and a water jet rotation regulating part disc 11.2;

[0111] The high-pressure water pipe docking port 11.1 is located on the water jet rotating adjustment part disc 11.2;

[0112] The high-pressure water pipe docking interface 11.1 corresponds to the position of the high-pressure water pipe external interface 6.6. When the TBM is working, the external water pipe of the water jet can be connected to the high-pressure water pipe docking interface to achieve synchronous rotation with the TBM cutterhead. The water jet rotation adjustment part disc is a hole-opening mechanism of the high-pressure water pipe docking interface, and the water jet rotation adjustment part disc can rotate synchronously with the TBM roller cutter. It can ensure the synchronization of high-pressure water rotation and water inlet.

[0113] The high-pressure water pipe docking interface 11.1 comprises a high-pressure water pipe docking interface front-end module 11.11 and a high-pressure water pipe docking interface rear-end module 11.12;

[0114] The high-pressure water pipeline external interface 6.6 is connected to the high-pressure water pipeline interface front-end module 11.11 through a connecting pipeline;

[0115] One end of the retractable water pipe 15 is connected to the water tank 16, and the other end is connected to the high-pressure water pipe docking interface rear end module 11.12 ( Figure 3 , Figure 4 As shown); the rear end of the high-pressure water pipe docking interface is used to connect the external high-pressure water inlet pipe, which is a fixing device; the front end of the high-pressure water pipe docking interface is used to connect the TBM cutter disc high-pressure water jet, the front end of the high-pressure water pipe docking interface rotates synchronously with the water jet rotation adjustment part, and further, the front end of the high-pressure water pipe docking interface rotates synchronously with the TBM cutter disc; when working, the external high-pressure water pipe is docked with the rear end of the high-pressure water pipe docking interface, and the water jet water flow channel is docked with the front end of the high-pressure water pipe docking interface, which can ensure the synchronization of high-pressure water rotation and water inlet.

[0116] Further, the hydraulic cutting tool module 7 comprises a hydraulic cutting tool module frame 1, a thrust spring structure 2, a hydraulic cutting tool module thrust cylinder 3, a hydraulic cutting tool module guide connecting cylinder 4, a fixing seat 5 and a hydraulic cutting tool;

[0117] The fixed ends of the hydraulic cutting tool module thrust cylinder 3 and the hydraulic cutting tool module guide connecting cylinder 4 are both fixed on the fixing seat 5;

[0118] The thrust spring structure 2 is located in the hydraulic cutting tool module frame 1;

[0119] The thrust cylinder 3 of the hydraulic cutting tool module is located at the upper end of the thrust spring structure 2;

[0120] The hydraulic cutting tool is fixed to the lower end of the hydraulic cutting tool module frame 1 (such as Fig. 9 , Fig.10 , Fig.11 , Fig.12 As shown); when the hydraulic cutting tool module is not in working state on the TBM cutter disc, the hydraulic cutting tool module is in an initial stress-free state, and the high-pressure water cutting tool accompanying rolling wheel and the high-pressure water pipe nozzle are ahead of the TBM cutter disc plane and the mechanical roller cutter module by a certain distance; when the hydraulic cutting tool module is in working state on the TBM cutter disc, the hydraulic cutting tool module first contacts the rock face and is subjected to the reaction force of the face. The thrust spring contracts until the hydraulic cutting tool module and the mechanical roller cutter structure are in the same plane, that is, the TBM cutter disc plane. In the working state, the hydraulic cutting tool module always keeps the high-pressure water cutting tool accompanying rolling wheel in a compressed rolling state; the high-pressure water cutting tool accompanying rolling wheel is subjected to a small force, in order to ensure that the hydraulic cutting tool module is always close to the rock face for water jet cutting. The high-pressure water cutting tool accompanying rolling wheel is used to drive the hydraulic cutting tool to move and does not play a mechanical rolling role (such as Fig.11 , Fig.12 as shown).

[0121] Furthermore, there are two hydraulic cutting tool module guide connecting cylinders 4; the two hydraulic cutting tool module guide connecting cylinders 4 are arranged at intervals; the hydraulic cutting tool module guide connecting cylinder plays a guiding and connecting role and is not subjected to force; in actual operation, the hydraulic cutting tool module thrust cylinder applies thrust, and the hydraulic cutting tool module guide connecting cylinder moves synchronously, and the applied force acts on the hydraulic cutting tool module frame through the thrust spring, thereby pushing the hydraulic cutting tool module;

[0122] The hydraulic cutting tool module thrust cylinder 3 is located between the two hydraulic cutting tool module guide connection cylinders 4;

[0123] The telescopic end of the hydraulic cutting tool module thrust cylinder 3 is connected to the upper plate of the thrust spring structure 2; the hydraulic cutting tool module thrust cylinder is a driving device of the entire mechanism, which can apply thrust to make the high-pressure water cutting tool accompanied by the rolling wheel bear force; the thrust spring is a connecting mechanism between the hydraulic cutting tool module thrust cylinder and the hydraulic cutting tool module frame, and the thrust applied by the hydraulic cutting tool module thrust cylinder is transmitted through the deformation of the thrust spring;

[0124] The lower plate of the thrust spring structure 2 is fixed to the middle of the two side walls of the hydraulic cutting tool module frame 1; the hydraulic cutting tool module has two states, namely the initial state and the rolling state; when the hydraulic cutting tool module is in the initial state, the thrust spring is in a state without force and only plays a connecting role; when the hydraulic cutting tool module is in a rolling state, the thrust spring is compressed and stressed, playing a role of connecting and transmitting force, and the thrust applied by the thrust cylinder of the hydraulic cutting tool module acts on the hydraulic cutting tool module frame through the thrust spring, thereby pushing the hydraulic cutting tool module;

[0125] The telescopic end of the hydraulic cutting tool module guide connection cylinder 4 is fixed to the upper end of the two side walls of the hydraulic cutting tool module frame 1; the hydraulic cutting tool module guide connection cylinder 4 plays a guiding connection role and is not subjected to force.

[0126] Furthermore, the hydraulic cutting tool comprises a high-pressure water pipe 6.1, a high-pressure water cutting tool accompanying rolling wheel 6.2 and a tool center axis 6.3; both ends of the tool center axis 6.3 are respectively fixed to the lower ends of the two side walls of the hydraulic cutting tool module frame 1; the high-pressure water cutting tool accompanying rolling wheel 6.2 is sleeved on the tool center axis 6.3 and movably connected to the tool center axis 6.3;

[0127] The high-pressure water pipe 6.1 vertically passes through the tool center axis 6.3 and is fixed on the tool center axis 6.3; the tool center axis 6.3 supports and fixes the high-pressure water pipe 6.1 and the high-pressure water pipe protection sleeve 6.4; the high-pressure water cutting tool is accompanied by a rolling wheel 6.2 for driving the high-pressure water pipe 6.1 and the nozzle 6.5 to move;

[0128] Furthermore, a rolling bearing 6.21 is provided in the middle of the high-pressure water cutting tool accompanying rolling wheel 6.2; the rolling bearing 6.21 is sleeved on the tool center axis 6.3; the high-pressure water cutting tool accompanying rolling wheel 6.2 rotates along the tool center axis 6.3 with the rolling bearing 6.21 as the center, and can provide motion power for the high-pressure water pipe 6.1 and the nozzle 6.5; the nozzle 6.5 is arranged vertically downward;

[0129] The center line of the high-pressure water cutting tool accompanied by the rolling wheel 6.2, the rolling bearing 6.21 and the center axis 6.3 of the tool is the same, so as to ensure the structural stability of the present invention.

[0130] Furthermore, there are two high-pressure water cutting tool accompanying rolling wheels 6.2; the two high-pressure water cutting tool accompanying rolling wheels 6.2 are arranged at intervals; the high-pressure water pipeline 6.1 is located between the two high-pressure water cutting tool accompanying rolling wheels 6.2 arranged at intervals; the structural stability of the present invention is ensured; a fixed through hole 6.31 is provided on the tool center axis 6.3; a high-pressure water pipeline protection sleeve 6.4 is provided on the outer periphery of the high-pressure water pipeline 6.1; the high-pressure water pipeline protection sleeve 6.4 extends from the top to the bottom of the fixed through hole 6.31 and is fixed on the fixed through hole 6.31;

[0131] The length of the lower end of the high-pressure water pipe protection sleeve 6.4 extending out of the fixed through hole 6.31 is less than the distance from the lower end of the high-pressure water cutting tool accompanying rolling wheel 6.2 to the tool center axis 6.3; ensuring that during rock breaking, the distance between the nozzle 6.5 and the face is within the maximum working efficiency range of the nozzle 6.5; the high-pressure water cutting tool accompanying rolling wheel 6.2 is used to protect the high-pressure water pipe protection sleeve 6.4, the high-pressure water pipe 6.1 and the nozzle 6.5.

[0132] Furthermore, a nozzle 6.5 is provided at the lower end of the high-pressure water pipe 6.1; the nozzle 6.5 is located in the high-pressure water pipe protection sleeve 6.4;

[0133] A high-pressure water pipeline external interface 6.6 is provided on the outer side wall of the hydraulic cutting tool module frame 1; the high-pressure water pipeline external interface is connected to external high-pressure water to inject water into the hydraulic cutting tool module;

[0134] The upper end of the high-pressure water pipe 6.1 passes through the side wall of the hydraulic cutting tool module frame 1 and is connected to the high-pressure water pipe external interface 6.6; the high-pressure water pipe external interface is connected to external high-pressure water, and water is injected into the hydraulic cutting tool module through the high-pressure water pipe external interface 6.6 and the high-pressure water pipe 6.1;

[0135] The upper end of the high-pressure water pipe protection sleeve 6.4 is located on the inner wall of the hydraulic cutting tool module frame 1 and is close to the lower plate of the thrust spring structure 2 (such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 , Fig.16 , Fig.17 As shown); the high-pressure water pipe protection sleeve 6.4 is used to protect the high-pressure water pipe 6.1 to prevent the high-pressure water pipe 6.1 from being exposed and easily damaged (such as Fig. 9 , Fig.10 , Fig.11 , Fig.12 Fig.13 , Fig.14 , Fig.15 , Fig.17 as shown).

[0136] Referring to the attached drawings, it can be seen that: the rock breaking method of the hydraulic-mechanical combined rock breaking TBM device includes the hydraulic-mechanical combined rock breaking TBM device 25;

[0137] The rock breaking method comprises the following steps:

[0138] Step 1: Align the TBM cutterhead structure 23 with the position where the hole is to be excavated (i.e., the tunnel face);

[0139] Step 2: fix the outer frame 17, start the hydraulic-mechanical combined rock-breaking TBM device 25, and make the hydraulic-mechanical combined rock-breaking TBM device 25 advance one stroke;

[0140] The support shoe 20 on the outer frame supports the surrounding rock cave wall and fixes the frame of the hydraulic-mechanical combined rock breaking TBM device 25;

[0141] The TBM cutterhead structure 23 is driven to rotate by the rotary drive 12, and the thrust cylinder 13 applies thrust to the TBM cutterhead structure 23, so that the TBM is slowly pushed out and excavated forward, and the rear support 14 provides support;

[0142] The hydraulic cutting tool module 7 and the mechanical hob structure 9 rotate themselves and rotate with the TBM cutter head structure 23 to break the rock mass synchronously;

[0143] The rock slag produced by the crushed rock mass is shoveled into the belt conveyor 22 by the bucket 21 and finally transported to the back of the machine for unloading; the thrust cylinder 13 extends a stroke, and the TBM cutterhead structure 23 and the components connected to the TBM cutterhead structure 23 move forward a stroke accordingly;

[0144] Step 3: Repeat steps 1 to 2 to start the next trip operation until the specified distance is reached, that is, the excavation is completed (such as Fig.11 As shown); The combined rock-breaking TBM is used for tunnel excavation. When the TBM is working, workers install the mechanical roller cutter and high-pressure hydraulic cutting tool module on the combined rock-breaking TBM cutterhead. The cutters on the TBM cutterhead have sufficient strength and rigidity to withstand the huge reaction force and shear stress generated by the rotation and propulsion of the cutterhead when the main engine is excavating. The rotary drive controls the rotation of the combined rock-breaking TBM cutterhead, and the thrust cylinder pushes the TBM cutterhead forward to excavate. During the excavation process, the support shoes on the external frame are used to support the surrounding rock cave wall and fix the TBM frame. The rear support is used to support the combined rock-breaking TBM to facilitate excavation. The bucket is used to shovel up the rock debris crushed by the cutterhead and transport it to the outside of the cave by a belt conveyor (such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 as shown).

[0145] During the above-mentioned excavation process, the support device behind the TBM cutterhead tightly connects the tunnel segments with the surrounding rock mass through methods such as shotcrete anchoring, forming a complete support system.

[0146] Further, in step 2, the hydraulic cutting tool module 7 and the mechanical roller cutter structure 9 break the rock synchronously, as follows:

[0147] The high-pressure water pipeline 6.1 hydraulically fractures the rock and produces a water-jet cut groove 26; the mechanical roller cutter structure 9 rolls over the rock on the tunnel face on both sides of the water-jet cut groove 26 to cause the rock debris to collapse.

[0148] Furthermore, in step 2, when the hydraulic cutting tool breaks the rock, the high-pressure water cutting tool is accompanied by the rolling wheel 6.2, which is pressed against the tunnel surface and rolls on the tunnel surface under the action of the hydraulic cutting tool module thrust cylinder 3, the thrust spring structure 2 and the hydraulic cutting tool module frame 1, driving the high-pressure water pipeline 6.1 to move, and the high-pressure water pipeline 6.1 sprays a high-pressure water jet onto the tunnel surface to form the water jet cutting groove 26 (such as Figure 1 , Figure 5 , Figure 8 , Fig.11 , Fig.12 as shown).

[0149] In order to more clearly illustrate the advantages of the hydraulic-mechanical combined rock-breaking TBM device and its rock-breaking method described in the present invention compared with the existing TBM excavation equipment system and its rock-breaking method, the staff compared the two technical solutions, and the comparison results are shown in the following table:

[0150]

[0151] It can be seen from the above table that the hydraulic-mechanical combined rock-breaking TBM device and its rock-breaking method described in the present invention can improve rock-breaking efficiency, reduce rock-breaking energy consumption, reduce mechanical wear, improve project progress, and reduce project costs compared with the existing TBM excavation equipment system and its rock-breaking method.

[0152] Other parts not described belong to the prior art.

Claims

1. A hydraulic-mechanical combined rock-breaking TBM device, comprising a rotary drive (12), a thrust cylinder (13), an outer frame (17), a hydraulic cylinder (19), a support shoe (20) on the outer frame and a TBM cutterhead structure (23); The TBM cutterhead structure (23) is installed at the front end of the rotary drive (12) and is located at the front side of the outer frame (17); the outer frame (17) is located outside the rotary drive (12); the outer frame upper support shoe (20) is located behind the outer frame (17) and is connected to the outer frame (17) through the propulsion cylinder (13); Features: The TBM cutterhead structure (23) comprises a TBM cutterhead (10), a mechanical hob structure (9) and a hydraulic cutting tool module (7); The mechanical hob structure (9) and the hydraulic cutting tool module (7) are both circumferentially mounted on the TBM cutter disc (10) and are arranged at intervals; The hydraulic cutting tool module (7) is installed between two adjacent mechanical hob structures (9); The hydraulic cutting tool module (7) comprises a hydraulic cutting tool module frame (1), a thrust spring structure (2), a hydraulic cutting tool module thrust cylinder (3) and a hydraulic cutting tool; The thrust spring structure (2) is located inside the hydraulic cutting tool module frame (1); The hydraulic cutting tool module thrust cylinder (3) is located at the upper end of the thrust spring structure (2); The hydraulic cutting tool is fixed to the lower end of the hydraulic cutting tool module frame (1); The hydraulic cutting tool module (7) also includes a hydraulic cutting tool module guide connecting cylinder (4) and a fixing seat (5); The hydraulic cutting tool module has a plurality of guide connecting cylinders (4); The fixed ends of the hydraulic cutting tool module thrust cylinder (3) and the hydraulic cutting tool module guide connection cylinder (4) are both fixed on the fixed seat (5); The telescopic end of the hydraulic cutting tool module thrust cylinder (3) is connected to the upper plate of the thrust spring structure (2); The lower plate of the thrust spring structure (2) is fixed to the middle of the side wall of the hydraulic cutting tool module frame (1); The telescopic end of the hydraulic cutting tool module guide connecting cylinder (4) is fixed to the upper end of the side wall of the hydraulic cutting tool module frame (1); The water cutting tool comprises a high-pressure water pipeline (6.1), a high-pressure water cutting tool accompanying rolling wheel (6.2) and a tool center axis (6.3); The two ends of the tool center axis (6.3) are respectively fixed to the lower ends of the side walls of the hydraulic cutting tool module frame (1); The high-pressure water cutting tool is accompanied by a rolling wheel (6.2) which is sleeved on the tool center axis (6.3); The high-pressure water pipeline (6.1) passes vertically downward through the tool center axis (6.3) and is fixed on the tool center axis (6.3); The high-pressure water cutting tool is accompanied by a rolling wheel (6.2) with a rolling bearing (6.21) in the middle thereof; The rolling bearing (6.21) is sleeved on the tool center axis (6.3) and is movably connected to the tool center axis (6.3); The tool center axis (6.3) is provided with a fixing through hole (6.31); A high-pressure water pipeline protection sleeve (6.4) is provided on the outer periphery of the high-pressure water pipeline (6.1); The high-pressure water pipe protection sleeve (6.4) extends from the top to the bottom of the fixing through hole (6.31) and is fixed on the fixing through hole (6.31); The length of the lower end of the high-pressure water pipe protection sleeve (6.4) extending out of the fixed through hole (6.31) is less than the distance from the lower end of the high-pressure water cutting tool accompanying the rolling wheel (6.2) to the tool center axis (6.3); The lower end of the high-pressure water pipeline (6.1) is provided with a nozzle (6.5); the nozzle (6.5) is located inside the high-pressure water pipeline protection sleeve (6.4); An external interface (6.6) for a high-pressure water pipeline is arranged on the outer side wall of the hydraulic cutting tool module frame (1); The hydraulic cutting tool module (7) is installed at the center position between two adjacent mechanical hob structures (9); When the TBM cutter disc (10) is in an initial state, the length of the high-pressure water jet cutting tool and the rolling wheel (6.2) extending out of the TBM cutter disc (10) is greater than the length of the mechanical hob structure (9) extending out of the TBM cutter disc (10); When the TBM cutter disc (10) is in a working state, the length of the high-pressure water jet cutting tool and the rolling wheel (6.2) extending out of the TBM cutter disc (10) is equal to the length of the mechanical hob structure (9) extending out of the TBM cutter disc (10); It also includes a water jet rotation adjustment part (11), a retractable water pipe (15), a water tank (16), a rear support (14), a shield (18), a bucket (21) and a belt conveyor (22); The water jet rotation adjustment part (11) is located in front of the rotation drive (12) and is coaxial with the rotation drive (12); The water tank (16) is located behind the rear support (14); One end of the retractable water pipe (15) is in communication with the water jet rotation regulating portion (11), and the other end is in communication with the water tank (16); The high-pressure water pipeline external interface (6.6) is connected to the water jet rotation regulating part (11) via a connecting pipeline; The shield (18) is located on the side of the outer frame (17) and is connected to the outer frame (17) through the hydraulic cylinder (19); the rear support (14) is located behind the support shoe (20) on the outer frame; the belt conveyor (22) is located on the inner side of the outer frame (17), and the bucket (21) is located at the front end of the belt conveyor (22) and at the front end of the outer frame (17).

2. The hydraulic-mechanical combined rock-breaking TBM device according to claim 1, Features: The high-pressure water cutting tool is accompanied by a plurality of rolling wheels (6.2); The high-pressure water pipeline (6.1) is located between the high-pressure water cutting tool and the accompanying rolling wheels (6.2) which are arranged at intervals.

3. The hydraulic-mechanical combined rock-breaking TBM device according to claim 1, Features: The upper end of the high-pressure water pipeline (6.1) passes through the side wall of the hydraulic cutting tool module frame (1) and is connected to the external interface (6.6) of the high-pressure water pipeline; The high-pressure water pipeline protection sleeve (6.4) is in close contact with the lower plate of the thrust spring structure (2).

4. The rock breaking method of the hydraulic-mechanical combined rock breaking TBM device according to any one of claims 1 to 3, Features: The following steps are included: Step 1: Align the TBM cutterhead structure (23) to the position of the hole to be excavated; Step 2: fix the outer frame (17), start the hydraulic-mechanical combined rock-breaking TBM device (25), and make the hydraulic-mechanical combined rock-breaking TBM device (25) advance one stroke; The support shoe (20) on the outer frame supports the surrounding rock cave wall and fixes the frame of the hydraulic-mechanical combined rock breaking TBM device (25); The TBM cutterhead structure (23) is driven to rotate by the rotary drive (12), and the thrust cylinder (13) applies thrust to the TBM cutterhead structure (23), so that the TBM is pushed out and excavates forward, and the rear support (14) provides support; The hydraulic cutting tool module (7) and the mechanical roller cutter structure (9) rotate themselves and rotate along with the TBM cutter head structure (23) to break the rock mass synchronously; The rock slag produced by the crushed rock mass is shoveled into the belt conveyor (22) by the bucket (21) and finally transported to the rear of the machine for unloading; the thrust cylinder (13) is extended by one stroke, and the TBM cutterhead structure (23) and the components connected to the TBM cutterhead structure (23) move forward by one stroke accordingly; Step 3: Repeat steps 1 to 2 to start the next trip operation until the specified distance is reached, that is, the excavation is completed.

5. The rock breaking method of the hydraulic-mechanical combined rock breaking TBM device according to claim 4, Features: In step 2, when the hydraulic cutting tool breaks rock, the high-pressure water cutting tool is accompanied by a rolling wheel (6.2) which is pressed against the tunnel surface and rolls on the tunnel surface under the action of the hydraulic cutting tool module thrust cylinder (3), the thrust spring structure (2) and the hydraulic cutting tool module frame (1), thereby driving the high-pressure water pipeline (6.1) to move, and the high-pressure water pipeline (6.1) sprays a high-pressure water jet onto the tunnel surface to form a water jet cutting groove (26); The mechanical roller cutter structure (9) rolls on the rocks of the tunnel face on both sides of the water jet cutting groove (26) to cause the rock slag to collapse.

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