CN113240999B - Test device and test method for improving muck synchronously during shield tunneling and soil cutting - Google Patents
Test device and test method for improving muck synchronously during shield tunneling and soil cutting Download PDFInfo
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- CN113240999B CN113240999B CN202110690425.XA CN202110690425A CN113240999B CN 113240999 B CN113240999 B CN 113240999B CN 202110690425 A CN202110690425 A CN 202110690425A CN 113240999 B CN113240999 B CN 113240999B
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- 239000002689 soil Substances 0.000 title claims abstract description 155
- 238000005520 cutting process Methods 0.000 title claims abstract description 64
- 230000005641 tunneling Effects 0.000 title claims abstract description 48
- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 238000010998 test method Methods 0.000 title claims abstract description 13
- 230000006872 improvement Effects 0.000 claims abstract description 38
- 230000001360 synchronised effect Effects 0.000 claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000004088 simulation Methods 0.000 claims abstract description 18
- 239000000654 additive Substances 0.000 claims abstract description 16
- 230000000007 visual effect Effects 0.000 claims abstract description 14
- 230000000996 additive effect Effects 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims description 40
- 239000002893 slag Substances 0.000 claims description 27
- 230000007246 mechanism Effects 0.000 claims description 25
- 238000010276 construction Methods 0.000 claims description 9
- 239000006260 foam Substances 0.000 claims description 7
- 229910000278 bentonite Inorganic materials 0.000 claims description 6
- 239000000440 bentonite Substances 0.000 claims description 6
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000005341 toughened glass Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 10
- 238000004140 cleaning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D9/0678—Adding additives, e.g. chemical compositions, to the slurry or the cuttings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
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Abstract
The invention belongs to the technical field of shield tests and discloses a synchronous muck improvement test device and a test method for shield tunneling and soil cutting, wherein the synchronous muck improvement test device for shield tunneling and soil cutting comprises a transparent soil bin, the transparent soil bin is arranged in and fixed on a steel outer cylinder, and a visible window is arranged on the steel outer cylinder; an additive inlet and a water inlet are arranged on the transparent soil bin, a driving piston is arranged at one end of the transparent soil bin, a cutter head is arranged at the other end of the transparent soil bin, the driving piston can push soil bodies to move towards the cutter head in the transparent soil bin, and the cutter head rotates and cuts the soil bodies. The invention simultaneously realizes the real working condition simulation and visual observation of the synchronous muck improvement process of shield tunneling and soil body cutting.
Description
Technical Field
The invention relates to the technical field of shield tests, in particular to a test device and a test method for improving muck synchronously in shield tunneling and soil body cutting.
Background
Along with the construction development of underground engineering, the quality requirement on shield construction is gradually improved. Due to the limit of the construction environment, the shield construction state is difficult to observe visually. In addition, along with shield tunneling, a large amount of muck can be discharged, and muck improvement is also the focus of current research. The conventional muck improvement test only aims at researching and improving soil bodies and cannot completely simulate real working conditions.
Disclosure of Invention
The invention aims to provide a test device and a test method for improving shield tunneling and soil cutting synchronous muck, and aims to solve the problem that the shield tunneling and soil cutting synchronous muck improving process cannot be simulated and visualized really.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention firstly provides a synchronous muck improvement test device for shield tunneling and soil cutting, which comprises:
the transparent soil bin is arranged in the steel outer cylinder and is fixed, and the steel outer cylinder is provided with a visible window; the soil cutting machine is characterized in that an additive inlet and a water inlet are formed in the transparent soil bin, an active piston is arranged at one end of the transparent soil bin, a cutter head is arranged at the other end of the transparent soil bin, the active piston can push a soil body in the transparent soil bin to move towards the cutter head, and the cutter head can rotate and cut the soil body.
Optionally, the synchronous muck improvement test device for shield tunneling and soil cutting further comprises a rotating support, and the steel outer cylinder is rotatably connected to the rotating support through a horizontal shaft.
Optionally, the test device for improving the muck during shield tunneling and soil cutting synchronization further comprises a fixed support, the rotary support and the cutter head are fixed on the fixed support, and the cutter head is detachably connected with the transparent soil bin.
Optionally, the test device for improving the muck synchronously during shield tunneling and soil cutting further comprises a first driving mechanism, the first driving mechanism is fixed on the rotating support, and an output end of the first driving mechanism is connected with the driving piston to drive the driving piston to move in the transparent soil bin.
Optionally, the synchronous muck improvement test device for shield tunneling and soil cutting further comprises a second driving mechanism, the second driving mechanism is fixed on the fixed support, and the output end of the second driving mechanism is connected with the cutter head to drive the cutter head to rotate.
Optionally, the additive inlet comprises a compressed air inlet, a bentonite inlet and a foam inlet which are arranged on one side of the cutter head, and the water inlet is arranged on one side of the driving piston.
Optionally, the orientation in transparent soil storehouse one side of blade disc still is equipped with the slag notch, the slag notch is connected the muck pipe in order to discharge the dregs after the improvement, on the muck pipe with the position that the slag notch is connected is equipped with the visual window of second.
Optionally, last reaction frame, reaction frame bracing and the hydraulic telescoping rod of being equipped with of runing rest, during initial condition, two upper and lower reaction frames constitute the rectangular frame structure and fix with controlling two reaction frame bracing the steel urceolus, reaction frame bracing rotate connect in runing rest, hydraulic telescoping rod's stiff end is fixed on the runing rest, the expansion end is connected reaction frame bracing, hydraulic telescoping rod's concertina movement can drive reaction frame bracing for runing rest rotates.
Optionally, a reaction frame pull rod is further arranged on the rotating support, the reaction frame pull rod is crossed, and four end portions of the reaction frame pull rod are respectively connected to four top corners inside the rectangular frame structure.
The invention also provides a test method for improving the synchronous muck of shield tunneling and soil cutting, and according to the test device for improving the synchronous muck of shield tunneling and soil cutting, the test method for improving the synchronous muck of shield tunneling and soil cutting comprises the following steps:
adding a test soil body into the transparent soil bin, pushing the soil body by the driving piston towards the cutter head, and cutting the soil body by the rotation of the cutter head to perform tunneling cutting simulation; after cutting, adding an additive and water into the transparent soil bin and mixing to improve the residue soil; and adding pressurized water into the transparent soil bin to simulate shield construction in a pressure-bearing water layer.
The invention has the beneficial effects that:
according to the synchronous muck improvement test device for shield tunneling and soil body cutting, the transparent soil bin is arranged, so that the mixing condition and the cutting process in the transparent soil bin can be visually observed; the movable driving piston is arranged, so that the shield tunneling construction process can be simulated; by arranging the additive inlet and the water inlet on the transparent soil bin, muck improvement test simulation can be carried out according to freely proportioned additives, so that the invention can simultaneously realize real working condition simulation and visual observation of the muck improvement process of synchronous shield tunneling and soil body cutting.
According to the synchronous muck improvement test method for shield tunneling and soil cutting, disclosed by the invention, the synchronous muck improvement test device for shield tunneling and soil cutting is constructed in a mode of scaling the actual shield tunneling machine in an equal proportion, so that the real working condition simulation and visual observation of the synchronous muck improvement process of shield tunneling and soil cutting can be realized at the same time.
Drawings
Fig. 1 is a schematic overall structure diagram of a synchronous muck improvement test device for shield tunneling and soil cutting provided by an embodiment of the invention;
fig. 2 is a schematic end-side structure diagram of a synchronous muck improvement test device for shield tunneling and soil cutting provided by an embodiment of the invention.
In the figure:
1. a transparent soil bin; 11. a water inlet; 12. a compressed air inlet; 13. a bentonite inlet; 14. a foam inlet; 15. a slag outlet; 2. a steel outer cylinder; 3. an active piston; 31. a first drive mechanism; 4. a cutter head; 5. rotating the bracket; 51. a reaction frame; 52. a reaction frame inclined strut; 53. a hydraulic telescopic rod; 54. a reaction frame pull rod; 6. a fixed bracket; 7. and a feeding bin.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The following describes in detail a synchronous muck improvement test device and a synchronous muck improvement test method for shield tunneling and soil cutting provided by the invention with reference to fig. 1-2.
As shown in fig. 1, the synchronous muck improvement test device for shield tunneling and soil cutting provided by the invention comprises a transparent soil bin 1, wherein the transparent soil bin 1 is arranged in and fixed on a steel outer cylinder 2, and a first visible window is arranged on the steel outer cylinder 2; an additive inlet and a water inlet 11 are arranged on the transparent soil bin 1, one end of the transparent soil bin 1 is provided with a driving piston 3, the other end of the transparent soil bin 1 is provided with a cutter head 4, the driving piston 3 can push soil bodies to move towards the cutter head 4 in the transparent soil bin 1, and the cutter head 4 can rotate and cut the soil bodies.
As shown in fig. 1, a transparent soil bin 1 is made of transparent organic glass, a steel inner cylinder 2 is fixed on the left side of the transparent soil bin 1 to fix the transparent soil bin 1, and a first visible window is arranged on the steel outer cylinder 2, so that the mixing condition and the cutting process in the transparent soil bin 1 can be visually observed; the cutter head 4 is arranged on the right side of the transparent soil bin 1 and is in sealing connection with the transparent soil bin 1, and the cutter head 4 is arranged on the cutter head to rotate so as to simulate cutting of a shield segment; the driving piston 3 is arranged on the left side of the transparent soil bin 1 and is in sliding connection with the inner side wall of the transparent soil bin 1, when the driving piston 3 pushes the soil body to move towards the cutter head 4, the cutter head 4 and the soil body move relatively, and the simulation of the shield tunneling construction process is realized; by arranging the additive inlet and the water inlet 11 on the transparent soil bin 1, the muck improvement test simulation can be carried out according to the freely proportioned additives, and the invention can realize the real working condition simulation and the visual observation of the synchronous muck improvement process of shield tunneling and soil cutting.
Optionally, the synchronous muck improvement test device for shield tunneling and soil cutting further comprises a rotating bracket 5, and the steel outer cylinder 2 is rotatably connected to the rotating bracket 5 through a horizontal shaft.
In the embodiment shown in fig. 1 and 2, the rotating bracket 5 provides a favorable support for the steel outer cylinder 2 to drive the transparent soil bin 1 to synchronously rotate, and the rotating bracket 5 is provided with a horizontal shaft, so that when the steel outer cylinder 2 rotates around the horizontal shaft, one side provided with the driving piston 3 rotates downwards, and the other side rotates upwards to form an opening, thereby facilitating charging or discharging materials into the transparent soil bin 1 and improving the test efficiency. It can be understood that transparent soil storehouse 1's top sets up adds feed bin 7, and the export that adds feed bin 7 just can be aimed at to the opening of transparent soil storehouse 1 after the rotation is in order to carry out quick reinforced, add the storage test soil body in the feed bin 7, including simulation materials such as bulk ground and coarse grain soil body.
Optionally, the test device for improving muck during shield tunneling and soil cutting synchronization further comprises a fixed support 6, the rotary support 5 and the cutter head 4 are fixed on the fixed support 6, and the cutter head 4 is detachably connected with the transparent soil bin 1.
It should be explained that the cutter head 4 is detachably connected to the transparent soil bin 1, when the transparent soil bin 1 and the steel inner cylinder 2 are rotated to feed or discharge material, the cutter head 4 and the transparent soil bin 1 need to be detached first, and only the transparent soil bin 1 and the steel outer cylinder 2 rotate, so that the connection between the cutter head 4 and the transparent soil bin 1 needs to be sealed, for example, the air cushion bin is used. The rotating bracket 5 is fixedly connected with the fixed bracket 6, and provides favorable support for the rotation of the steel outer cylinder 2 and the transparent soil bin 1.
Optionally, the test device for improving the muck synchronously during shield tunneling and soil cutting further comprises a first driving mechanism 31, the first driving mechanism 31 is fixed on the rotating bracket 5, and the output end of the first driving mechanism 8 is connected with the driving piston 3 to drive the driving piston 3 to move in the transparent soil bin 1.
As shown in fig. 1, in this embodiment, the first driving mechanism 31 employs an oil cylinder, a piston of the oil cylinder is connected to the driving piston 3, and the driving piston 3 can be driven to move in a telescopic manner to push the soil body, so as to realize relative movement between the soil body and the cutter head 4, and perform shield tunneling cutting simulation. It should be noted that the first visual window on the steel inner cylinder 2 is arranged at a position corresponding to the cutting of the cutter head 4, so that the movement condition of the soil body in the cutting process of the cutter head 4 can be observed conveniently, and the development state in the residue soil improvement process can be observed.
Optionally, the synchronous muck improvement test device for shield tunneling and soil cutting further comprises a second driving mechanism, the second driving mechanism is fixed on the fixed support 6, and the output end of the second driving mechanism is connected with the cutter head 4 to drive the cutter head 4 to rotate.
It can be understood that the cutter head 4 is provided with blades for cutting according to the real working condition so as to realize the soil cutting simulation of the real geological condition. In this embodiment, the cutter head 4 is made of tempered glass so as to observe the cutting process, and the cutter head 4 rotates in a vertical plane to realize cutting. The second driving mechanism selects a speed reducing motor, the output end of the speed reducing motor is provided with a rotating wheel, and the rotating wheel is connected with the cutter head 4 to rotate synchronously. When the connection is installed, attention needs to be paid to sealing.
Optionally, the additive inlet comprises a compressed air inlet 12, a bentonite inlet 13 and a foam inlet 14 arranged on the side of the cutter head 4, and the water inlet 11 is arranged on the side of the driving piston 3.
As shown in fig. 1, a compressed air inlet 12 is provided at the top of the transparent soil silo 1 for passing compressed air into the transparent soil silo 1. The bentonite inlet is arranged between the compressed air inlet 12 and the foam inlet 14, the foam inlet 14 is arranged at the central shaft of the transparent soil bin 1, and the slag soil improvement additive proportion free adjustment and control capacity can be realized by inputting and adjusting the dosage of additives such as compressed air, foam, bentonite and the like and the dosage of pressurized water, so that slag soil improvement simulation is realized and an excellent slag soil improvement effect is obtained.
Optionally, one side of the transparent soil bin 1 facing the cutter head 4 is further provided with a slag hole 15, the slag hole 15 is connected with a slag pipe 16 to discharge improved slag soil, and a second visual window is arranged at a position on the slag pipe 16, which is connected with the slag hole 15.
As shown in fig. 1, in the portion that slag tapping pipe 16 and slag tapping hole 15 are connected, be equipped with one section transparent visual section on the slag tapping pipe 16, be the second visual window promptly, in this embodiment, cutting, the real-time condition of mixing and dregs improvement condition can be observed to first visual window and second visual window department by naked eye, simultaneously, also can catch the real-time condition through coming the electron such as setting up CCD camera, the later stage of being convenient for is analyzed, summarized and is contrasted etc.. The other end of the slag discharging pipe 16 is connected with a slag car, and the improved slag can be directly recycled. The slag pipe 16 is provided with a shield screw conveyor which can discharge soil materials such as improved slag soil in the transparent soil bin 1.
Optionally, a reaction frame 51, a reaction frame diagonal brace 52 and a hydraulic telescopic rod 53 are arranged on the rotating bracket 5, in an initial state, the upper and lower reaction frames 51 and the left and right reaction frame diagonal braces 52 form a rectangular frame structure and fix the steel outer cylinder 2, the reaction frame diagonal brace 52 is rotatably connected to the rotating bracket 5, a fixed end of the hydraulic telescopic rod 53 is fixed on the fixed bracket 6, a movable end of the hydraulic telescopic rod is connected with the reaction frame diagonal brace 52, and telescopic motion of the hydraulic telescopic rod 53 can drive the reaction frame diagonal brace 52 to rotate relative to the rotating bracket 5.
As shown in fig. 1, it can be understood that the movable end of the hydraulic telescopic rod 53 is hinged to the reaction frame diagonal brace 52, when the hydraulic telescopic rod 53 contracts, the reaction frame diagonal brace 52 is driven to rotate, the rotation direction is that one side of the driving piston 3 rotates downwards until the opening of the other side of the driving piston faces upwards, the driving piston is opposite to the feeding bin 7, and the feeding bin 7 opens a valve to feed soil, specifically, test soil. After the feeding is finished, the hydraulic telescopic rod 53 is extended, the steel inner cylinder 2 drives the transparent soil bin 1 to synchronously rotate to a working position, the cutter head 4 is connected, corresponding shield tunneling and soil body cutting synchronous muck improvement simulation are carried out, after the simulation test is finished, the cutter head 4 is disassembled again, the steel inner cylinder 2 and the transparent soil bin 1 are driven to rotate again through the contraction of the hydraulic telescopic rod 53, and the cleaning and other works are carried out. The hydraulic telescopic rods 53 are symmetrically arranged on two sides of the steel outer barrel 2, and are driven by hydraulic pressure, so that the driving speed is stable, the hydraulic driving can be stabilized and maintained at a telescopic position, and the test safety is ensured.
Optionally, the rotating bracket 5 is further provided with a reaction frame pull rod 54, the reaction frame pull rod 54 is criss-cross, and four ends of the reaction frame pull rod 54 are respectively connected to four top corners inside the rectangular frame structure.
As shown in fig. 2, the reaction frame pull rod 54 is used for increasing the connection strength between the reaction frame 51 and the reaction frame diagonal brace 52, and during the working process, a fixed installation position can be provided for the first driving mechanism 31, so that when cleaning is performed, the first driving mechanism 31 can drive the driving piston 3 to move upwards to clean the redundant muck out of the transparent soil silo 1, and the cleaning efficiency and effect are improved.
The invention also provides a synchronous muck improvement test method for shield tunneling and soil cutting, which comprises the following steps of:
adding a test soil body into the transparent soil bin 1, pushing the soil body towards the direction of the cutter head 4 by the driving piston 3, and cutting the soil body by rotating the cutter head 4 to carry out tunneling cutting simulation; after cutting, adding an additive and water into the transparent soil bin 1 and mixing to improve the residue soil; pressurized water is added into the transparent soil bin 1 to simulate shield construction in a confined water layer.
According to the test method for improving the shield tunneling and soil cutting synchronous muck, the test device for improving the shield tunneling and soil cutting synchronous muck is constructed in a mode of scaling the actual shield machine in an equal proportion, the real working condition simulation and the visual observation of the process of improving the shield tunneling and soil cutting synchronous muck can be realized through one test device, the universality is high, and the simulation effect is real and effective.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (3)
1. The utility model provides a shield constructs synchronous dregs improvement test device of tunnelling and soil body cutting, its characterized in that includes:
the soil bin comprises a transparent soil bin (1), wherein the transparent soil bin (1) is arranged in a steel outer cylinder (2) and is fixed, a first visible window is arranged on the steel outer cylinder (2), and the first visible window is arranged at a position corresponding to the cutting position of a cutter head (4) so as to observe the soil motion condition in the cutting process of the cutter head (4); an additive inlet and a water inlet (11) are formed in the transparent soil bin (1), one end of the transparent soil bin (1) is provided with a driving piston (3), the other end of the transparent soil bin is provided with a cutter head (4), the driving piston (3) can push soil to move towards the cutter head (4) in the transparent soil bin (1), the cutter head (4) can rotate and cut the soil, and the cutter head (4) is made of toughened glass;
the additive inlet comprises a compressed air inlet (12), a bentonite inlet (13) and a foam inlet (14) which are arranged on one side of the cutter head (4), and the water inlet (11) is arranged on one side of the driving piston (3);
a slag hole (15) is further formed in one side, facing the cutter head (4), of the transparent soil bin (1), the slag hole (15) is connected with a slag pipe (16) to discharge improved slag soil, and a second visible window is formed in the position, connected with the slag hole (15), of the slag pipe (16);
the synchronous muck improvement test device for shield tunneling and soil body cutting further comprises a rotary support (5), a fixed support (6) and a first driving mechanism (31), wherein the steel outer cylinder (2) is rotationally connected to the rotary support (5) through a horizontal shaft, the rotary support (5) and the cutter head (4) are fixed on the fixed support (6), the first driving mechanism (31) is fixed on the rotary support (5), and the output end of the first driving mechanism (31) is connected with the driving piston (3) to drive the driving piston (3) to move in the transparent soil bin (1); the cutter head (4) is detachably connected with the transparent soil bin (1); the steel outer cylinder is characterized in that a reaction frame (51), a reaction frame inclined strut (52) and a hydraulic telescopic rod (53) are arranged on the rotating support (5), when the steel outer cylinder is in an initial state, the upper reaction frame (51), the lower reaction frame (51), the left reaction frame inclined strut and the right reaction frame inclined strut (52) form a rectangular frame structure and fix the steel outer cylinder (2), the reaction frame inclined strut (52) is rotatably connected to the rotating support (5), the fixed end of the hydraulic telescopic rod (53) is fixed on the fixed support (6), the movable end of the hydraulic telescopic rod is connected with the reaction frame inclined strut (52), the telescopic motion of the hydraulic telescopic rod (53) can drive the reaction frame inclined strut (52) to rotate relative to the rotating support (5), the rotating direction is that one side of the driving piston (3) rotates downwards until the opening of the other side of the driving piston upwards and the opening of the other side of the driving piston is opposite to the feeding bin (7), and the feeding bin (7) opens a valve to feed materials; the first visual window and the second visual window are provided with CCD cameras; still be equipped with reaction frame pull rod (54) on runing rest (5), reaction frame pull rod (54) are the cross, and four tip are connected respectively four apex angle departments of the inside of rectangular frame structure, reaction frame pull rod (54) can be for first actuating mechanism (31) provide the fixed mounting position, when the clearance, first actuating mechanism (31) can drive initiative piston (3) rebound is in order to clear up unnecessary dregs out transparent soil storehouse (1).
2. The synchronous muck improvement testing device for shield tunneling and soil cutting according to claim 1, further comprising a second driving mechanism, wherein the second driving mechanism is fixed on the fixed support (6), and the output end of the second driving mechanism is connected with the cutter head (4) to drive the cutter head (4) to rotate.
3. A shield tunneling and soil cutting synchronous muck improvement test method, which is characterized in that according to the shield tunneling and soil cutting synchronous muck improvement test device of claim 1 or 2, the shield tunneling and soil cutting synchronous muck improvement test method comprises the following steps:
adding a test soil body into the transparent soil bin (1), pushing the soil body by the driving piston (3) towards the cutter head (4), and cutting the soil body by the rotation of the cutter head (4) to carry out tunneling cutting simulation; after cutting, adding an additive and water into the transparent soil bin (1) and mixing to improve the residue soil; and then adding pressurized water into the transparent soil bin (1) to simulate shield construction in a pressurized water layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110690425.XA CN113240999B (en) | 2021-06-22 | 2021-06-22 | Test device and test method for improving muck synchronously during shield tunneling and soil cutting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110690425.XA CN113240999B (en) | 2021-06-22 | 2021-06-22 | Test device and test method for improving muck synchronously during shield tunneling and soil cutting |
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| CN113240999A CN113240999A (en) | 2021-08-10 |
| CN113240999B true CN113240999B (en) | 2023-03-14 |
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|---|---|---|---|---|
| CN114047317A (en) * | 2021-11-03 | 2022-02-15 | 腾达建设集团股份有限公司 | Slurry balance shield test device and test method |
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