CN112483111A - Rock ridge-free rock breaking method based on inclined high-pressure water jet and scraper arrangement - Google Patents
Rock ridge-free rock breaking method based on inclined high-pressure water jet and scraper arrangement Download PDFInfo
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- CN112483111A CN112483111A CN202011214356.7A CN202011214356A CN112483111A CN 112483111 A CN112483111 A CN 112483111A CN 202011214356 A CN202011214356 A CN 202011214356A CN 112483111 A CN112483111 A CN 112483111A
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- scraper
- rock
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- pressure water
- water jet
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
- E21D9/087—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
Abstract
The invention discloses a rock ridge-free rock breaking method based on inclined high-pressure water jet and scraper arrangement. The method comprises the following steps: the high-pressure water jet sprayed by the high-pressure water jet structure is vertically jetted into the rock to form a high-pressure water cutting groove on the rock mass material; rolling the local rock blocks divided by two adjacent high-pressure water cutting grooves by a mechanical hob of a mechanical hob structure to form two main cracks, wherein a trapezoidal rock ridge appears below the mechanical hob; step two: the rock ridge is divided again by the high-pressure water jet jetted by the high-pressure water jet structure, and the residual rock mass and the divided rock ridge in the step one are removed by a mechanical scraper; or a modular scraper is adopted to directly remove the rock ridge. The invention overcomes the defects that the depth of the mechanical hob penetrating into the rock can not reach the depth of the high-pressure water cutting groove, so that the remained rock ridge needs to be removed in other modes, and the time and the labor are consumed; has the advantage of directly removing residual rock ridge.
Description
Technical Field
The invention relates to the field of tunnels and underground engineering, in particular to application of a high-pressure water jet rock breaking technology in the field of TBM tunnel construction, and more particularly relates to a rock ridge-free rock breaking method based on inclined high-pressure water jets and scraper arrangement.
Background
In the traditional sense, the original TBM mechanical cutter breaks rock and removes rock ridges in a mechanical hob rolling and scraper cutting mode. However, after combined rock breaking by high pressure water jet cutting, the height of the rock ridge below the hob is increased, and the bottom position of the hydraulic cutting is difficult to be reached by the original mechanical scraper, so that the remaining rock ridge needs to be removed by other means.
Disclosure of Invention
The invention aims to provide a rock ridge-free rock breaking method based on inclined high-pressure water jet and scraper arrangement, which is a rock ridge removing method under the pressure action of a mechanical hob under the combined rock breaking mode of high-pressure water jet and the mechanical hob, and can be directly used for flattening residual rock mass left after the action of the mechanical hob, flattening a tunnel face in front of tunneling and improving the combined rock breaking efficiency of the next stage; the defect that the depth of the mechanical hob penetrating into the rock cannot reach the depth of the high-pressure water cutting groove, so that the reserved rock ridge needs to be removed in other modes, and time and labor are consumed is overcome.
In order to achieve the purpose, the technical scheme of the invention is as follows: a rock ridge-free rock breaking method based on inclined high-pressure water jet and scraper arrangement is characterized in that: comprises the following steps of (a) carrying out,
the method comprises the following steps: the TBM cutterhead is aligned with the rock; firstly, vertically jetting high-pressure water jet sprayed by a high-pressure water jet structure into a rock to form a high-pressure water cutting groove on a rock material;
then, rolling the local rock blocks divided by the two adjacent high-pressure water cutting grooves by a mechanical hob of a mechanical hob structure, wherein after the rolling of the mechanical hob, the rectangular local rock blocks form two main cracks below the mechanical hob, and the main cracks penetrate through the local rock blocks from the lower part of the mechanical hob to the bottom position of the high-pressure water cutting grooves; so far, a trapezoidal rock ridge appears below the mechanical hob;
step two: the rock ridge is divided again by the high-pressure water jet jetted by the high-pressure water jet structure, and the residual rock mass and the divided rock ridge in the step one are removed by a mechanical scraper;
or a modular scraper is adopted to directly remove the rock ridge.
In the above technical solution, in the second step, when the rock ridge is re-segmented by the high-pressure water jet jetted by the high-pressure water jet structure, the rock ridge segmentation method is: the high-pressure water jet is obliquely injected into the rock ridge, the injection angle is degree, and the injection point is the middle point of the inclined edge of the rock ridge.
In the technical scheme, the high-pressure water jet structure is used for controlling the jet pressure and the cutting speed of the high-pressure water jet until the cutting depth of the high-pressure water jet reaches the bottom edge position of the rock ridge.
In the technical scheme, in the second step, when the modular scraper is used for directly removing the rock ridge, the modular scraper penetrates into the high-pressure water cutting groove and the residual rock ridge after rolling by the cutting mechanical hob, and the rock ridge is pushed to the bottommost position of the high-pressure water cutting groove.
In the technical scheme, the modularized scraper comprises a scraper cutter, a mechanical scraper frame, a mechanical scraper thrust oil cylinder and a mechanical scraper guiding connection oil cylinder;
the scraper cutter is arranged on the mechanical scraper frame through a mechanical scraper cutter middle shaft;
the mechanical scraper thrust oil cylinder is connected with the mechanical scraper frame;
the mechanical scraper guiding connection oil cylinder is connected with the mechanical scraper frame and is positioned at two sides of the mechanical scraper thrust oil cylinder;
and the mechanical scraper thrust oil cylinder and the mechanical scraper guiding connection oil cylinder are respectively connected with the TBM cutter head.
In the technical scheme, when the TBM cutter disc works, the mechanical scraper thrust oil cylinder applies thrust, the mechanical scraper guiding connection oil cylinder moves synchronously along with the mechanical scraper frame, and the application force of the mechanical scraper thrust oil cylinder acts on the mechanical scraper frame to further push the scraper cutter.
In the technical scheme, the mechanical hob structure comprises a mechanical hob, a mechanical hob frame and a mechanical hob thrust oil cylinder;
the mechanical hob is arranged on the mechanical scraper frame through a middle shaft of the mechanical hob;
the mechanical hob thrust oil cylinder is connected with the mechanical hob frame;
and the mechanical hob thrust oil cylinder is connected with the TBM cutter head.
In the technical scheme, the modularized scraper comprises two states, namely a scraper cutting rock ridge working state and a scraper contraction state;
when the mechanical scraper module is in a scraper contraction state, the length of the scraper cutter extending out of the plane of the TBM cutter head is equal to the length of the mechanical hob extending out of the plane of the TBM cutter head, the scraper cutter and the mechanical hob roll rock materials simultaneously,
when the mechanical scraper module is in a scraper cutting rock ridge working state, the scraper cutter penetrates into the high-pressure water cutting groove and cuts the residual rock ridge after rolling by the mechanical hob, and the rock ridge is pushed to the bottommost position of the high-pressure water cutting groove.
In the technical scheme, a high-pressure water jet structure, a mechanical hob structure and a modular scraper are arranged on the TBM cutter head;
the high-pressure water jet structure, the modular scraper and the mechanical hob structure are respectively arranged on the TBM cutter head to form a working group, wherein the high-pressure water jet structure, the modular scraper and the mechanical hob structure are arranged on the TBM cutter head according to a rock breaking sequence mode of water jet grooving, modular scraper widening deepening and mechanical hob rolling cutting.
In the technical scheme, on the traveling square of the TBM cutter head, the high-pressure water jet structure is positioned in front of the mechanical hob structure, and the mechanical hob structure is positioned in front of the modular scraper;
and a plurality of working groups are arranged on the TBM cutter head.
The invention has the following advantages:
(1) the invention relates to a method for removing rock ridge under the pressure action of a mechanical hob under the combined rock breaking mode of high-pressure water jet and the mechanical hob, which can be directly used for flattening residual rock mass after the action of the mechanical hob, flattening the tunnel face in front of tunneling and improving the combined rock breaking efficiency of the next stage; the defects that the depth of the mechanical hob penetrating into the rock cannot reach the depth of the high-pressure water cutting groove, so that the reserved rock ridge needs to be removed in other modes, and time and labor are consumed are overcome;
(2) according to the invention, the novel scraper is adopted, so that the cutting depth of the scraper is deepened, the direct cutting of a rock ridge block body below the hob is promoted, and the working efficiency is improved; the method is suitable for the working condition that the water jet technology is possibly difficult to adapt to in the rock excavation engineering with more complex engineering environment;
(3) according to the invention, the high-pressure water jet is adopted to segment the residual rock ridge block again, and then the mechanical scraper is used for removing the residual rock ridge and the block, so that the organic combination of the grooving depth and the mechanical rock breaking depth which are matched is finally realized, the direct cutting of the rock ridge block below the hob is promoted, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a traditional mechanical hob rolling and scraper removal process involved in rock ridge breaking.
FIG. 2 is a schematic diagram of the sequential action of a high-pressure water jet structure, a mechanical hob structure, a modular scraper or a mechanical scraper in the present invention for breaking rock.
FIG. 3 is a schematic diagram of the water jet grooving combined with mechanical hob rock breaking in the present invention.
Fig. 4 is a schematic structural diagram of a residual rock ridge after rock breaking in fig. 3.
FIG. 5 is a schematic diagram of the present invention adopting a high pressure water jet structure to carry out hydraulic grooving and breaking on the residual rock mass, and adopting a scraper to remove the residual rock mass.
Fig. 6 is a working state diagram of the modular scraper and mechanical hob structure on the TBM cutterhead in a compressed state.
Fig. 7 is a state diagram of the modular scraper and mechanical hob structure of the TBM cutterhead after retraction.
Fig. 8 is a schematic structural diagram of a TBM cutterhead in the present invention.
In fig. 1, FN represents the urging force; FR represents the roll force; a represents the rock face before cutting; b represents residual rock ridge below the hob; c represents the rock surface after cutting; q1 indicates the direction of rotation of the mechanical hob.
In fig. 2, FN represents the urging force; FR represents the roll force; a represents the rock face before cutting; c represents the rock surface after cutting; q1 represents the direction of rotation of the mechanical hob; l denotes a high-pressure water jet injected by the high-pressure water jet structure.
In fig. 3, M denotes a compact core; w represents a secondary crack; and C represents the residual rock ridge after the rock is broken by the high-pressure water jet structure and the mechanical hob structure in sequence.
In fig. 4, C represents the residual rock ridge after the rock is successively broken by the high-pressure water jet structure and the mechanical hob structure; and E represents a hydraulic cutting bottom datum line.
In fig. 5, K1 is a first block; k2 is a second block; k3 is a third block; l is an inclined hydraulic grooving formed after the high-pressure water jet structure performs inclined cutting on the residual rock ridge; and E represents a hydraulic cutting bottom datum line.
In fig. 6 and 7, M denotes a TBM deck plane.
In fig. 8, Q2 represents the TBM rotation direction.
In the figure, 1-modular scraper, 1.1-scraper cutter, 1.2-mechanical scraper frame, 1.3-mechanical scraper thrust oil cylinder, 1.4-mechanical scraper guide connecting oil cylinder, 1.5-mechanical scraper cutter center shaft, 2-mechanical hob structure, 2.1-mechanical hob, 2.2-mechanical hob frame, 2.3-mechanical hob thrust oil cylinder, 2.4-mechanical hob cutter center shaft, 3-high pressure water jet structure, 4-TBM cutter head, 5-high pressure water cutting groove, 6-main crack, 7-rock ridge and 8-mechanical scraper.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be clear and readily understood by the description.
With reference to the accompanying drawings: a rock ridge-free rock breaking method based on inclined high-pressure water jet and scraper arrangement comprises the following steps,
the method comprises the following steps: the TBM cutter head 4 is aligned with the rock; firstly, high-pressure water jet jetted by a high-pressure water jet structure 3 is vertically jetted into rock, and a high-pressure water cutting groove 5 with certain width and depth is formed on rock mass materials;
then, rolling the local rock blocks divided by the two adjacent high-pressure water cutting grooves 5 by a mechanical hob of the mechanical hob structure 2, wherein after the rolling of the mechanical hob, the rectangular local rock blocks form two main cracks 6 below the mechanical hob, and the main cracks 6 penetrate through the local rock blocks from the lower part of the mechanical hob to the bottom position of the high-pressure water cutting grooves 5; so far, a trapezoidal-shaped rock ridge 7 with certain participation strength appears below the mechanical hob (as shown in fig. 2, 3 and 4);
step two: the rock ridge 7 is divided again by the high-pressure water jet jetted by the high-pressure water jet structure 3, a mechanical scraper is used for removing residual rock mass left after rolling through the passageway in the step one and three regular trapezoid boss rock masses in smaller areas divided by high-pressure water jet grooving in the step two, the cutting depth of the scraper is the bottom edge line of the trapezoid-like residual rock ridge block rock boss block, and finally organic combination of matching grooving depth and mechanical rock breaking depth is realized (as shown in fig. 2, 5 and 8);
or directly removing rock ridges by adopting the modular scraper 1; only when the penetration depth of the hob reaches a certain value and the rock breaking force is large enough, the rock ridge can be removed; the inclined high-pressure water jet grooving reaches a certain depth, a stress concentration area is formed at the bottom of the grooving, a mechanical hob is matched to roll and crush rock, a main crack can be stretched to the bottom of the grooving, and the main crack is cut off by a scraper subsequently, so that rock ridge-free rock breaking is realized.
Further, in the second step, when the rock ridge 7 is divided again by the high-pressure water jet jetted by the high-pressure water jet structure 3, the dividing manner of the rock ridge 7 is as follows: the high-pressure water jet obliquely jets into the rock ridge 7, the incident angle is 45 degrees, and the incident point is the middle point (shown in figure 5) of the oblique edge of the rock ridge 7 similar to the trapezoid shape, so that the rock ridge crushing effect is improved, the rock ridge strength is reduced, and the energy consumption of the scraper for removing the rock ridge is reduced.
Further, the high-pressure water jet structure 3 is used for controlling the jet pressure and the cutting speed of the high-pressure water jet until the cutting depth of the high-pressure water jet reaches the bottom edge position of the rock ridge 7 (namely the regular trapezoid boss); at this time, the residual trapezoid-like residual rock ridge 7 blocks after the mechanical hob rolling rock breaking are divided into three smaller rock regions, namely a first block K1, a second block K2 and a third block K3 (as shown in fig. 5) by high-pressure water jet. The high-pressure water jet structure 3 and the high-pressure water jet structure 3 are both in the prior art.
Further, in the second step, when the modular scraper 1 is used for directly removing the rock ridge 7, the modular scraper 1 penetrates into the high-pressure water cutting groove 5 and the residual rock ridge after rolling by the cutting mechanical hob, and the rock ridge is pushed to the bottommost position of the high-pressure water cutting groove 5, so that how deep cutting and how deep breaking are combined to break the rock.
Further, the modularized scraper 1 comprises a scraper cutter 1.1, a mechanical scraper frame 1.2, a mechanical scraper thrust oil cylinder 1.3 and a mechanical scraper guiding connection oil cylinder 1.4;
the scraper knife tool 1.1 is arranged on the mechanical scraper frame 1.2 through a mechanical scraper knife tool middle shaft 1.5;
the mechanical scraper thrust oil cylinder 1.3 is connected with the mechanical scraper frame 1.2;
the two mechanical scraper guiding connecting oil cylinders 1.4 are respectively positioned at two sides of the mechanical scraper thrust oil cylinder 1.3;
the mechanical scraper thrust oil cylinder 1.3 and the mechanical scraper guiding connection oil cylinder 1.4 are respectively connected with a TBM cutter head 4;
the mechanical scraper frame serves as a support for mounting the water jet cutting hob (see fig. 6 and 7). The mechanical scraper thrust oil cylinder is a pushing device of the whole mechanism and can apply thrust to enable a mechanical scraper cutter to be stressed; the mechanical scraper guiding connection oil cylinder plays a guiding connection role and is not stressed. During actual work, the mechanical scraper thrust oil cylinder applies thrust, the mechanical scraper guiding and connecting oil cylinder moves along with synchronization, and the applied force acts on the mechanical scraper frame to further push the cutter. The mechanical scraper module has two states, namely a scraper rock ridge cutting working state and a hob contraction state. The blade does not penetrate the rock material in the contracted state (as shown in fig. 7); in the cutting state, the scraper cuts the residual rock ridge rolled by the mechanical hob and pushes the rock ridge to the bottommost position of the high-pressure water jet cutting groove, so that how deep the rock is cut and how deep the rock is broken jointly are realized (as shown in fig. 6).
Further, when the TBM cutter head 4 works, the mechanical scraper thrust oil cylinder 1.3 applies thrust, the mechanical scraper guiding connection oil cylinder 1.4 moves synchronously along with the mechanical scraper frame 1.2, and the application force of the mechanical scraper thrust oil cylinder 1.3 acts on the mechanical scraper frame 1.2 to further push the scraper cutter 1.1 to remove rock ridges.
Further, the mechanical hob structure 2 comprises a mechanical hob 2.1, a mechanical hob frame 2.2 and a mechanical hob thrust oil cylinder 2.3;
the mechanical hob 2.1 is arranged on the mechanical scraper frame 1.2 through a mechanical hob cutter middle shaft 2.4;
the mechanical hob thrust oil cylinder 2.3 is connected with the mechanical hob frame 2.2;
the mechanical hob thrust cylinder 2.3 is connected to the TBM cutterhead 4 (as shown in fig. 6, 7 and 8).
Further, the modularized scraper 1 comprises two states, namely a scraper rock ridge cutting working state and a scraper contraction state;
when the mechanical scraper module is in a scraper contraction state, the length of the scraper cutter 1.1 extending out of the plane of the TBM cutter head 4 is equal to the length of the mechanical hob extending out of the plane of the TBM cutter head 4, the scraper cutter 1.1 and the mechanical hob roll the rock material simultaneously (as shown in figure 7),
when the mechanical scraper module is in a scraper cutting rock ridge working state, the scraper cutter 1.1 penetrates into the high-pressure water cutting groove 5 and cuts the residual rock ridge 7 after rolling by the mechanical hob, and the rock ridge 7 is pushed to the bottommost position of the high-pressure water cutting groove 5 (as shown in fig. 6).
Further, a high-pressure water jet structure 3, a mechanical hob structure 2 and a modular scraper 1 are arranged on the TBM cutter head 4;
the high-pressure water jet structure 3, the modular scraper 1 and the mechanical hob structure 2 are respectively arranged on a TBM cutter head 4 at different phases to form a working group; the high-pressure water jet structure 3, the modular scraper 1 and the mechanical hob structure 2 are arranged on a TBM cutter head 4 in a rock breaking sequence mode of grooving of the high-pressure water jet structure 3, widening and deepening of the modular scraper 1 and rolling cutting of the mechanical hob (as shown in figure 8) to form a working group.
Further, on the traveling square of the TBM cutter head 4, the high-pressure water jet structure 3 is positioned in front of the mechanical hob structure 2, and the mechanical hob structure 2 is positioned in front of the modular scraper 1;
the TBM cutterhead 4 for combined rock breaking is circumferentially provided with a plurality of working groups (as shown in figure 8).
The inclination angle of the inclined high-pressure water jet is adjusted according to the rock strength and the cutter, and the optimal water jet cutting effect is achieved.
In order to more clearly illustrate the advantages of the rock ridge-free rock breaking method based on the inclined high-pressure water jet and the scraper arrangement, compared with the prior art, the two technical schemes are compared by workers, and the comparison results are as follows:
as can be seen from the above table, compared with the prior art, the rock ridge-free rock breaking method based on the inclined high-pressure water jet and the scraper arrangement is simple and convenient in rock ridge removing method, high in working efficiency and low in construction cost.
Other parts not described belong to the prior art.
Claims (10)
1. A rock ridge-free rock breaking method based on inclined high-pressure water jet and scraper arrangement is characterized in that: comprises the following steps of (a) carrying out,
the method comprises the following steps: the TBM cutter head (4) is aligned to the rock; firstly, high-pressure water jet jetted by a high-pressure water jet structure (3) vertically shoots into rock, and a high-pressure water cutting groove (5) is formed on rock mass materials;
then, rolling the local rock blocks divided by the two adjacent high-pressure water cutting grooves (5) by a mechanical hob of the mechanical hob structure (2), wherein after the rolling by the mechanical hob, two main cracks (6) are formed on the rectangular local rock blocks below the mechanical hob, and the main cracks (6) penetrate through the local rock blocks from the lower part of the mechanical hob to the bottom position of the high-pressure water cutting grooves (5); so far, a trapezoidal rock ridge (7) appears below the mechanical hob;
step two: the rock ridge (7) is divided again by the high-pressure water jet jetted by the high-pressure water jet structure (3), and a mechanical scraper (8) is used for removing the residual rock mass and the divided rock ridge in the step I;
or directly removing the rock ridge by adopting the modular scraper (1).
2. The rock ridge-free rock breaking method based on the inclined high-pressure water jet and scraper arrangement as claimed in claim 1, wherein: in the second step, when the rock ridge (7) is divided again by the high-pressure water jet jetted by the high-pressure water jet structure (3), the dividing mode of the rock ridge (7) is as follows: the high-pressure water jet is obliquely injected into the rock ridge (7), the injection angle is 45 degrees, and the injection point is the middle point of the inclined edge of the rock ridge (7).
3. The rock ridge-free rock breaking method based on the inclined high-pressure water jet and scraper arrangement as claimed in claim 2, wherein: the high-pressure water jet structure (3) is used for controlling the jet pressure and the cutting speed of the high-pressure water jet until the cutting depth of the high-pressure water jet reaches the bottom edge position of the rock ridge (7).
4. The rock ridge-free rock breaking method based on the inclined high-pressure water jet and scraper arrangement as claimed in claim 1, wherein: in the second step, when the modular scraper (1) is used for directly removing the rock ridge (7), the modular scraper (1) penetrates into the high-pressure water cutting groove (5) and cuts the residual rock ridge after rolling by the mechanical hob, and the rock ridge is pushed to the bottommost position of the high-pressure water cutting groove (5).
5. The rock ridge-free rock breaking method based on the inclined high-pressure water jet and scraper arrangement as claimed in claim 4, wherein: the modularized scraper (1) comprises a scraper cutter (1.1), a mechanical scraper frame (1.2), a mechanical scraper thrust oil cylinder (1.3) and a mechanical scraper guiding connection oil cylinder (1.4);
the scraper cutter (1.1) is arranged on the mechanical scraper frame (1.2) through a mechanical scraper cutter middle shaft (1.5);
the mechanical scraper thrust oil cylinder (1.3) is connected with the mechanical scraper frame (1.2);
the mechanical scraper guiding connecting oil cylinder (1.4) is connected with the mechanical scraper frame (1.2) and is positioned at two sides of the mechanical scraper thrust oil cylinder (1.3);
and the mechanical scraper thrust oil cylinder (1.3) and the mechanical scraper guiding connection oil cylinder (1.4) are respectively connected with the TBM cutter head (4).
6. The rock ridge-free rock breaking method based on the inclined high-pressure water jet and scraper arrangement as claimed in claim 5, wherein: when a TBM cutter head (4) works, a mechanical scraper thrust oil cylinder (1.3) applies thrust, a mechanical scraper guide connecting oil cylinder (1.4) moves synchronously along with a mechanical scraper frame (1.2), and the application force of the mechanical scraper thrust oil cylinder (1.3) acts on the mechanical scraper frame (1.2) to further push a scraper cutter (1.1).
7. The rock ridge-free rock breaking method based on the inclined high-pressure water jet and scraper arrangement as claimed in claim 6, wherein: the mechanical hob structure (2) comprises a mechanical hob (2.1), a mechanical hob frame (2.2) and a mechanical hob thrust oil cylinder (2.3);
the mechanical hob (2.1) is arranged on the mechanical scraper frame (1.2) through a mechanical hob cutter middle shaft (2.4);
the mechanical hob thrust oil cylinder (2.3) is connected with the mechanical hob frame (2.2);
and the mechanical hob thrust oil cylinder (2.3) is connected with a TBM cutter head (4).
8. The rock ridge-free rock breaking method based on the inclined high-pressure water jet and scraper arrangement as claimed in claim 7, wherein: the modularized scraper (1) comprises two states, namely a scraper rock ridge cutting working state and a scraper contraction state;
when the mechanical scraper module is in a scraper contraction state, the length of the scraper cutter (1.1) extending out of the plane of the TBM cutter head (4) is equal to the length of the mechanical hob extending out of the plane of the TBM cutter head (4), the scraper cutter (1.1) and the mechanical hob roll rock materials simultaneously,
when the mechanical scraper module is in a scraper cutting rock ridge working state, a scraper cutter (1.1) penetrates into the high-pressure water cutting groove (5) and cuts residual rock ridges (7) after rolling by the mechanical hob, and the rock ridges (7) are pushed to the bottommost position of the high-pressure water cutting groove (5).
9. The rock ridge-free rock breaking method based on the inclined high-pressure water jet and scraper arrangement as claimed in claim 8, wherein: a TBM cutter head (4) is provided with a high-pressure water jet structure (3), a mechanical hob structure (2) and a modular scraper (1);
the high-pressure water jet structure (3), the modular scraper (1) and the mechanical hob structure (2) are respectively arranged on the TBM cutter head (4) to form a working group, wherein the high-pressure water jet structure (3), the modular scraper (1) and the mechanical hob structure (2) are arranged on the TBM cutter head (4) according to a rock breaking sequence mode of water jet grooving, modular scraper (1) widening deepening and mechanical hob rolling cutting.
10. The rock ridge-free rock breaking method based on the inclined high-pressure water jet and scraper arrangement as claimed in claim 9, wherein: on the moving square of a TBM cutter head (4), a high-pressure water jet structure (3) is positioned in front of a mechanical hob structure (2), and the mechanical hob structure (2) is positioned in front of a modular scraper (1);
and a plurality of working groups are arranged on the TBM cutter head (4).
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| CN210685990U (en) * | 2019-07-02 | 2020-06-05 | 中国科学院武汉岩土力学研究所 | Hydraulic-mechanical combined rock breaking TBM cutter head and TBM device thereof |
| CN110529134A (en) * | 2019-10-17 | 2019-12-03 | 黄河勘测规划设计研究院有限公司 | High-pressure hydraulic auxiliary driving cutterhead for balancing earth-pressure shielding machine |
| CN110593888A (en) * | 2019-10-25 | 2019-12-20 | 中铁工程装备集团有限公司 | Heading machine with high-pressure water jet-mechanical coupling integrated disc-shaped hob |
| CN110847926A (en) * | 2019-10-25 | 2020-02-28 | 中国科学院武汉岩土力学研究所 | Hydraulic cutting tool module and combined rock breaking TBM device and method |
| CN211648175U (en) * | 2019-10-25 | 2020-10-09 | 中国科学院武汉岩土力学研究所 | Hydraulic cutting tool module and hydraulic-mechanical combined rock breaking TBM device |
| CN110700849A (en) * | 2019-11-21 | 2020-01-17 | 黄河勘测规划设计研究院有限公司 | Tunnel hard rock heading machine and heading machine cutter head thereof |
| CN110805447A (en) * | 2019-11-21 | 2020-02-18 | 黄河勘测规划设计研究院有限公司 | High-pressure water jet double-slit coupling rock breaking heading machine |
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