CN204903189U - Cutting of class rectangular shield impels analogue test system - Google Patents
Cutting of class rectangular shield impels analogue test system Download PDFInfo
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- CN204903189U CN204903189U CN201520429611.8U CN201520429611U CN204903189U CN 204903189 U CN204903189 U CN 204903189U CN 201520429611 U CN201520429611 U CN 201520429611U CN 204903189 U CN204903189 U CN 204903189U
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Abstract
The utility model provides a cutting of class rectangular shield impels analogue test system, including a mold box, horizontal advancing device, a motor and a type rectangular shield simulation blade disc, the motor is installed on horizontal guide rail, horizontal advancing device can promote the motor on horizontal guide rail linear motion with the simulation ahead running, the output shaft and two the cutting tool bits transmission in type rectangle simulation blade disc of motor are connected, it rotates with simulation cutting motion to drive the cutting tool bit, class rectangle simulation blade disc and two cutting tool bits are arranged in the mold box by embedded in model soil, the cutting tool bit is done in the mold box that is equipped with model soil and is impeld cutting motion to make the model local products give birth to the motion. Be provided with the transparent and survey the wall on the mold box, the mold box is outside to be provided with the motion condition that the model soil in the mold box was surveyd to the observation device with surveing the wall relatively to this simulation type propulsive operating mode of rectangular shield cutting.
Description
Technical field
The utility model relates to a kind rectangular shield and cuts propelling simulation experiment system.
Background technology
The raising that the quickening of building along with municipal traffic and surrounding enviroment protection require, in the construction of the engineerings such as soft clay area Urban Underground Passage, has higher requirement to trenchless technology, to reduce environmental impact, adapt to the execution conditions of shallow embedding.Class rectangular shield tunnel, because of features such as its scetion utilization are high, construction cost is low, Land-Subsidence Control is effective, receives and pays close attention to widely, is trend of the times to its research application.Along with the successful implementation of big cross section rectangular top pipe case, extremely urgent especially to the research in class rectangular shield tunnel.In the current period being in China's underground space develop rapidly, contain huge potentiality.The research of class rectangular shield correlation technique, greatly can improve the competitive edge of China in international tunnel piercing industry, China's class rectangular shield equipment and operating technique is risen to a brand-new level.Also will class rectangular shield be driven to be correlated with the development of auxiliary products simultaneously, and then drive the development of whole industrial chain, to aiming international most advanced level, carry out tunneling shield cutting edge technology, Key Common Technologies research, promote the industrialization of research findings, realize sustainable development and keep economic stability to increase, there is important strategic importance.
Class rectangular shield machine often has multiple cutterhead, is different from the hilted broadsword dish of traditional circular shield, even has little eccentric cutterhead.Because this type of rectangular shield tunnel is cutting in the process advanced, owing to influencing each other between cutterhead, excavation face exists uncertain greatly, needs its stability problem of special concern.Meanwhile, the impact that the stability problem due to excavation face causes environment, also should give enough attention, and correlative study shows that one, class rectangular shield tunnel major issue is exactly the stable problem of face of tool.The domestic research about class rectangular shield is less at present, and also not having can the pilot system of simulate class rectangular shield cutterhead work.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is that providing a kind rectangular shield to cut advances simulation experiment system, cut the duty in promotion process with the cutterhead can simulating class rectangular shield, provide a kind of simulation experiment system for class rectangular shield cuts the research advanced.
For achieving the above object and other relevant objects, the utility model provides a kind rectangular shield to cut and advances simulation experiment system, it is characterized in that, comprise with lower part: model casing, loaded with dielectric soil in model casing, model casing is surrounded by multiple sidewall, and one of them sidewall is the observation wall be made up of transparent material; Class rectangular shield simulation cutterhead, is positioned at described model casing; Described class rectangular shield simulation cutterhead is provided with two cutter tips; Motor, is arranged on a horizontal guide rail movably, and the output shaft of motor and two cutter tips are in transmission connection; Horizontal propulsion device, is connected with motor and promotes motor rectilinear motion on described horizontal guide rail; Observation device, is arranged on model casing outside and relative with described observation wall.
Further, on described observation wall draw have grid line.
Preferably, described horizontal propulsion device is a lifting jack.
Further, sidewall relative with observation wall on described model casing is abutment wall, and the output shaft of motor is in transmission connection through abutment wall and two cutter tips.
Further, bearing is provided with between the output shaft of described motor and abutment wall.
Further, described motor has two, and described two cutter tips are respectively connected with the output shaft of a motor.
Preferably, stress, strain and displacement transducer is buried underground in described model clay.
Further, the bottom of described cutterhead is provided with soil outlet.
Preferably, the top of described cutterhead is provided with multiple conical protrusions.
Preferably, described observation device is video camera.
As mentioned above, a kind rectangular shield of the present utility model cuts and advances simulation experiment system, there is following beneficial effect: the technical scheme involved by the utility model provides a kind of class rectangular shield of can simulating and advances the pilot system of duty when cutting, pilot system configuration observation device, can observe and advance soil body motion conditions in working angles to carry out analysis of experiments, this test system architecture is comparatively simple, and test is convenient.
Accompanying drawing explanation
Fig. 1 is that the class rectangular shield of the utility model embodiment cuts propelling simulation experiment system schematic diagram.
Fig. 2 is that the class rectangular shield of the utility model embodiment cuts the schematic diagram advancing class rectangular shield simulation cutterhead in simulation experiment system.
Fig. 3 is that the class rectangular shield of the utility model embodiment cuts the grid schematic diagram advancing in simulation experiment system and observe on wall.
Fig. 4 is that the class rectangular shield of the utility model embodiment cuts the scheme schematic diagram advancing simulation experiment system employing two motors to drive two cutter tips respectively.
Piece mark explanation
1 horizontal guide rail 42 conical protrusions
2 lifting jack 43 soil outlets
3 motor 5 model casings
31 installing plate 51 abutment wall
Wall observed by 4 class rectangular shield simulation cutterheads 52
41 cutter tip 6 video cameras
Embodiment
Below by way of specific instantiation, embodiment of the present utility model is described, those skilled in the art the content disclosed by this instructions can understand other advantages of the present utility model and effect easily.The utility model can also be implemented or be applied by embodiments different in addition, and the every details in this instructions also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present utility model.
Fig. 1 cuts to the kind rectangular shield that Figure 2 shows that involved by the utility model and advances simulation experiment system, comprise a model casing 5, horizontal propulsion device, motor 3 and class rectangular shield simulation cutterhead 4, motor 3 is arranged on horizontal guide rail 1, horizontal propulsion device can promote motor 3 on horizontal guide rail 1 rectilinear motion to simulate ahead running, two cutter tips 41 that the output shaft of motor 3 and class rectangular shield are simulated in cutterhead 4 are in transmission connection, drive cutter tip 41 to rotate to move with simulation cutting, class rectangular shield simulation cutterhead 4 and two cutter tips 41 are arranged in model casing 5 and are embedded in model clay, cutter tip 41 does and advances cutting movement to make model clay produce motion in the model casing 5 that model clay is housed.
Horizontal propulsion device can provide ahead running and propelling power, in the present embodiment, as shown in Figure 1 and Figure 4, horizontal propulsion device is lifting jack 2, adopt hydraulic-driven, relatively between lifting jack 2 with horizontal guide rail 1 to fixedly mount, the push rod of lifting jack 2 is connected with the casing rear end of motor 3, the bottom of shell of motor 3 is provided with the guide rail matching mechanism coordinated with horizontal guide rail 1, such as slide block or roller, make motor 3 can do rectilinear motion along horizontal guide rail 1 under the effect of horizontal propulsion device.When lifting jack 2 push rod jacking or retract time, lifting jack 2 can driving electric machine 3 along horizontal guide rail 1 jacking or retraction.
Class rectangular shield simulation cutterhead 4 comprises two cutter tips 41, and two cutter tips 41 that the output shaft of motor 3 and class rectangular shield simulate cutterhead 4 are in transmission connection.Two cutter tips 41 can be driven to rotate by gear train with a motor 3, such as adopt gear drive to drive two cutter tips 41 to rotate, two motors 3 also can be adopted to drive two cutter tips 41 to rotate respectively.As shown in Figure 4, drive respectively in the embodiment of two cutter tips 41 at use two motors 3, the output shaft of each motor 3 connects a cutter tip 41, and two motors 3 drives two cutter tips 41 to rotate respectively.When adopting two motors 3 to drive two cutter tips 41 to rotate respectively, can be that two motors 3 configures a horizontal jacking mechanism respectively, in the present embodiment, adopt two lifting jack 2 jacking two motors 3 respectively, two hydraulic jack 2 are all relative with horizontal guide rail 1 to be fixedly mounted, the push rod of two lifting jack 2 is connected with the casing rear end of two motors 3 respectively, the bottom of shell of two motors 3 is provided with installing plate 31, installing plate 31 is provided with the roller coordinated with horizontal guide rail 1, horizontal guide rail 1 is steel guide rail, motor 3 can do rectilinear motion along horizontal guide rail 1 under the effect of horizontal propulsion device.When adopting two motors 3 to drive two cutter tips 41 to rotate respectively, also can be fixedly connected with by the casing of fixed connecting plate by two motors 3, be connected with fixed connecting plate by a lifting jack 2, lifting jack 2 makes two motors together along horizontal guide rail 1 moving linearly by jacking web joint.
As shown in Figure 1 and Figure 4, model casing 5 is fixedly placed on ground, and in model casing 5, be filled with the model clay of test, the dielectric material of model clay is selected as required, to simulate different soil body conditions.Model casing 5 comprises multiple sidewall, one of them sidewall is made up of transparent material, such as organic glass, transparent sidewall is observation wall 52 so that observe and record by observation wall 52 the model clay motion conditions surveyed in model casing 5, in the outside of model casing 5, be relatively set with observation device with observation wall 52, observation device can adopt video camera 6, through the motion conditions of observation wall 52 observation model case 5 inner model soil, test overall process can be observed by video camera 6.
Sidewall relative with observation wall 52 on model casing 5 is abutment wall 51, and the output shaft of motor 3 is in transmission connection through abutment wall 51 and two cutter tips 41.Abutment wall 51 can adopt the higher material of strength and stiffness to make, dead eye can be arranged in the hole that abutment wall 51 upper motor 3 output shaft passes, bearing is installed in dead eye and carrys out supporting motor output shaft, to improve the radial force that motor output shaft bears at working angles and the degree of disturbing produced.The output shaft of motor 3 can move by bearing rotary relatively, can also relatively axially move by bearing.Can with stainless steel base plate as the bottom of model casing 5, to make test model case 5, there are good strength and stiffness as the seamed edge of model casing 5 with angle steel, prevent the distortion of model casing 5.
On the observation wall 52 of model casing 5, the gridline pulled can be provided with, observation device can be made to distinguish sedimentation or the protuberance situation of the earth's surface soil body well by gridline, as shown in Figure 3, grid can be set to the grid that many horizontal and vertical straight lines divide, the size of grid and density can be arranged according to actual needs.Can in conjunction with the motion conditions of model clay in PIV Technical Analysis Model case 5, simulate sedimentation on class rectangular shield earth's surface in work progress or protuberance situation with this, the impact of assessment Construction on Environment.In order to can more perspective to soil in model casing in process of the test 5 emotionally condition observe, other sidewalls of model casing 5 also employing transparent material can be made, and configure observation device to the soil in model casing 5 emotionally condition to observe and in conjunction with the motion conditions of model clay in PIV Technical Analysis Model case 5.
As shown in Figure 2, in order to better simulate the working angles of class rectangular shield simulation cutterhead 4, multiple conical protrusions 42 can be set at the top of class rectangular shield simulation cutterhead 4, collide to not make conical protrusions 42 and cutter tip 41, conical protrusions 42 is arranged on the region of circumscribed circle on class rectangular shield simulation cutterhead 4 backboard beyond view field of two cutter tips 41, the soil block started in working angles when cutter tip 41 is larger, not easily during fragmentation, the soil block started is expressed to attrition crushing in conical protrusions 42 by cutter tip 41.The bottom of class rectangular shield simulation cutterhead 4 is provided with soil outlet 43, cutter tip 41 can be cut broken soil by soil outlet 43 and discharge.
More metrical information is tested in order to obtain, can in model clay pre-buried stress, strain and displacement transducer, monitored by sensor and advance stress in working angles in model clay and deformation at cutter tip 41, simulation class rectangular shield to the disturbance situation of the soil body, makes assessment to construction quality and environmental impact in work progress.
In order to simulate the working condition of class rectangular shield under different fltting speed and different cutting speed situation, class rectangular shield involved by the utility model cuts and advances simulation experiment system also to comprise control system, control system comes the fltting speed of level of control propulsion plant and the cutting speed of motor 3 by control program, by setting different fltting speeds and cutting speed simulates different Cutting tools, the operating mode that the various types of rectangular shield of simulate advances.
Cutting the class rectangular shield involved by the utility model below advances the general using method of simulation experiment system to be described:
1. install test unit, test model case 5 organic glass baffle plate pulls grid.
2. to loaded with dielectric soil in chamber subsystem, pre-buried good stress, strain and displacement transducer etc.
3. after model casing 5 loaded with dielectric soil, calibration guide rail levelness, setting motor 3 rotating speed, lifting jack 2 stroke and move speed.
4. first open observation device, and then open motor 3, lifting jack 2, now observation device has started shooting, records the motion conditions of the soil body in native cabin in working angles.
After battery of tests, obtain every data of sensor, in conjunction with record data, the characteristics of motion of the comprehensive analysis classes rectangular shield cutting progradation soil body and work progress are on the impact of environment.
By setting different cutting rotational speeds, propelling stroke, the fltting speed cutterhead form different from replacing, simulate various different operating mode.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (10)
1. a kind rectangular shield cuts and advances simulation experiment system, it is characterized in that, comprises with lower part:
Model casing (5), loaded with dielectric soil in model casing (5), model casing (5) is surrounded by multiple sidewall, and one of them sidewall is the observation wall (52) be made up of transparent material;
Class rectangular shield simulation cutterhead (4), is positioned at described model casing (5), and described class rectangular shield simulation cutterhead (4) is provided with two cutter tips (41);
Motor (3), is arranged on a horizontal guide rail (1) movably, and output shaft and two cutter tips (41) of motor (3) are in transmission connection;
Horizontal propulsion device, is connected with motor (3) and promotes motor (3) at the upper rectilinear motion of described horizontal guide rail (1);
Observation device, is arranged on model casing (5) outside and relative with described observation wall (52).
2. simulation experiment system according to claim 1, is characterized in that, upper the drawing of described observation wall (52) has grid line.
3. simulation experiment system according to claim 1, is characterized in that, described horizontal propulsion device is a lifting jack (2).
4. simulation experiment system according to claim 1, it is characterized in that, the upper sidewall relative with observation wall (52) of described model casing (5) is abutment wall (51), and the output shaft of motor (3) is in transmission connection through abutment wall (51) and two cutter tips (41).
5. simulation experiment system according to claim 4, is characterized in that, is provided with bearing between the output shaft of described motor (3) and abutment wall (51).
6. simulation experiment system according to claim 1, is characterized in that, described motor (3) has two, and described two cutter tips (41) are respectively connected with the output shaft of a motor (3).
7. simulation experiment system according to claim 1, is characterized in that, buries stress, strain and displacement transducer in described model clay underground.
8. simulation experiment system according to claim 1, is characterized in that, the bottom of described class rectangular shield simulation cutterhead (4) is provided with soil outlet (43).
9. simulation experiment system according to claim 1, is characterized in that, the top of described class rectangular shield simulation cutterhead (4) is provided with multiple conical protrusions (42).
10. simulation experiment system according to claim 1, is characterized in that, described observation device is video camera (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520429611.8U CN204903189U (en) | 2015-06-19 | 2015-06-19 | Cutting of class rectangular shield impels analogue test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520429611.8U CN204903189U (en) | 2015-06-19 | 2015-06-19 | Cutting of class rectangular shield impels analogue test system |
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| Publication Number | Publication Date |
|---|---|
| CN204903189U true CN204903189U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520429611.8U Expired - Fee Related CN204903189U (en) | 2015-06-19 | 2015-06-19 | Cutting of class rectangular shield impels analogue test system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949851A (en) * | 2015-06-19 | 2015-09-30 | 同济大学 | Cutting propulsion simulation test system for quasi-rectangular shielding |
| CN106289829A (en) * | 2016-07-25 | 2017-01-04 | 同济大学 | A kind of small-sized TBM Tunnel Gushing model test model casing |
-
2015
- 2015-06-19 CN CN201520429611.8U patent/CN204903189U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949851A (en) * | 2015-06-19 | 2015-09-30 | 同济大学 | Cutting propulsion simulation test system for quasi-rectangular shielding |
| CN106289829A (en) * | 2016-07-25 | 2017-01-04 | 同济大学 | A kind of small-sized TBM Tunnel Gushing model test model casing |
| CN106289829B (en) * | 2016-07-25 | 2018-10-26 | 同济大学 | A kind of small-sized TBM Tunnel Gushings model test model casing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20190619 |