CN203396588U - Miniature TBM excavation system for tunnel excavation in physical simulation test - Google Patents
Miniature TBM excavation system for tunnel excavation in physical simulation test Download PDFInfo
- Publication number
- CN203396588U CN203396588U CN201320473153.9U CN201320473153U CN203396588U CN 203396588 U CN203396588 U CN 203396588U CN 201320473153 U CN201320473153 U CN 201320473153U CN 203396588 U CN203396588 U CN 203396588U
- Authority
- CN
- China
- Prior art keywords
- cutterhead
- excavation
- transmission shaft
- lifting jack
- shield
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a miniature TBM excavation system for tunnel excavation in a physical simulation test and belongs to the technical filed of geotechnical engineering. The system comprises a cutterhead, a shield, a support boot, a transmission shaft, a pulling jack, a guide rail, a motor, a pedestal and the like. One end of the pulling jack is fixed with a support stand, a piston at the other end of the pulling jack pulls the pedestal and the motor to move forward or backward, the motor drives the transmission shaft to rotate, the cutterhead is pushed to cut tunnel face "rocks ", and jacks at two sides of the support boot can push support boot arms to apply assigned pressure on "surrounding rocks". According to the system, the rock breaking process of the cutterhead can be accurately simulated, interaction among the surrounding rocks-the support boot, the tunnel face-the cutterhead, the surrounding rocks-the shied is considered, the system can not only be applied to the common geomechanic model test simulation of excavation of soft rock tunnels, subways and the like by a TBM shield heading machine, but also be applied to the simulation of excavation of deeply-buried hard rock tunnels by a TBM heading machine, and the relation between rock-machine interaction and rock burst is researched.
Description
Technical field
The utility model relates to a kind of miniature TBM excavation system for physical simulation experiment tunnel excavation, belongs to Geotechnical Engineering field.
Background technology
Physical simulation experiment is to take similarity theory as basis, on the basis of preparation analog material, by to model test piece loading, excavation, supporting, monitoring etc., by model investigation subterranean tunnel, the destruction of factory building, the stability problem of reduced scale, a kind of research method of utilizing test findings to instruct on-the-spot construction, has formed four kinds of research methods of Geotechnical Engineering jointly with shop experiment, numerical analysis and field monitoring.The material character of model, test specimen structural attitude, loading method, excavation method etc. are more similar to prototype, and the reliability of test findings is higher, can be just larger for engineering staff's reference.
In model test, the excavation of tunnel mainly contains four kinds of methods:
(1) while making test specimen, at the pre-buried cylinder consistent with excavation hole shape of assigned address, after test specimen is dry, extract cylinder and make tunnel one-shot forming, reload.
(2) while making test specimen at the pre-buried cylinder consistent with excavating hole shape of assigned address, cylinder is comprised of several segments, and mechanical property (as played mould) is as far as possible consistent with test specimen, after test specimen is dry, is loaded on primary stress, again pre-buried segment cylinder is ejected successively to simulation excavation section by section.
(3) after the test specimen of making is dry, be loaded on the tunnel that definite shape is manually excavated out in primary stress ， precalculated position.
(4) after the test specimen of making is dry, being loaded on primary stress ， precalculated position utilizes rig or small-sized excavation equipment mechanical equivalent of light excavation to go out the tunnel of designated shape.
Mainly there is following shortcoming in above four kinds of digging modes:
(1) although the mode cavitation effect loading after first perforate is better, do not conform to actual digging process, on-the-spot excavation construction carries out in initial stress field, and therefore this method can not well be simulated cavern excavation process and stresses re-distribution feature.
(2) method that ejects successively pre-buried small column piece simulation step excavation after loading need to make the distortion of small column piece coordinate mutually with test piece deformation, consistent, cylinder can not affect the distortion of test specimen, and under high pressure, is also difficult for ejecting.
(3) manually the method for excavation is feasible to simple process of the test, but when tunnel excavation is long, while there is hidden excavation, and manual in narrow space to excavate difficulty larger.
(4) time saving and energy saving while adopting rig or miniature excavation equipment excavation, efficiency is higher, but also there is bigger difference in the Simple mechanical excavation method adopting and the cutterhead rock breaking mechanism in on-the-spot mechanical equivalent of light excavation, the interaction of rock-machine etc., cannot accomplish accurate simulation.
TBM tunnel boring machine has been widely applied to tunnel, in the excavation of buried hard rock tunnel, the huge thrust of cutterhead to face rock mass, support boots all produce inhibiting effect to the generation of rock burst to the powerful supporting role of country rock etc., therefore develop a set of simple in structure but can accurately simulate cutterhead rock break-off process, can take into full account cutterhead, the interaction of shield and support boots and rock mass, thereby research TBM rate of excavation, cutterhead thrust, moment of torsion, support boots pressure, the interaction mechanism of shield pressure and rock burst, to improve excavation efficiency and the science of analog result and the necessary condition of accuracy.
Summary of the invention
The purpose of this utility model is to provide a kind of interactional miniature TBM of rock-machine complicated between cutterhead rock break-off process similarity and cutterhead, shield and support boots and rock mass that can consider for physical simulation experiment tunnel excavation to excavate system.
To achieve these goals, the utility model is achieved through the following technical solutions:
Miniature TBM excavation system for physical simulation experiment tunnel excavation, described miniature TBM excavation system is by cutterhead, shield, support boots, transmission shaft, pulling force lifting jack, guide rail, motor, base, support stand forms, on described support stand, be symmetrically arranged with along its length guide rail, being placed on guide rail of base activity, pulling force lifting jack one end is fixedly connected on support stand one side, the piston termination of pulling force lifting jack is fixedly connected on base, the axis of pulling force lifting jack is parallel to guide rail, be positioned on the center line of support stand, motor is fixedly mounted on base top, the rotating shaft of motor is connected by flange with transmission shaft one end, the axis of the axis of transmission shaft and pulling force lifting jack is parallel and be positioned at same perpendicular, the other end of transmission shaft is set with shield, shield is fixedly connected with transmission shaft, the termination of transmission shaft is installed with cutterhead, cutter diameter equates with shield external diameter, being sleeved on transmission shaft of support boots activity.
Described support boots are by boots cover, and lifting jack, supports boots arm and form, and boots cover is hollow cylindrical, and lifting jack symmetry is arranged on Xue Tao both sides, and the piston termination of lifting jack is installed with support boots arm, the curved shape of support boots arm.
Described cutterhead is circular, and cutterhead end face central authorities cross the center of circle and are radially furnished with a fish tail cutter, and fish tail cutter symmetria bilateralis is inlayed two above carbide buttons, has scum hole on cutterhead, and scum hole axis is parallel to transmission shaft.
Described shield is annular hollow structure near cutterhead one end, and on other end, center surrounding symmetry has isodiametric circular hole.
Owing to having adopted above technical scheme, miniature TBM excavation system for physical simulation experiment tunnel excavation of the present utility model, pulling force lifting jack provides the thrust of the broken rock of cutterhead, motor provides the moment of torsion of the broken rock of cutterhead, support boots can apply predetermined pressure by jack pair " country rock ", and the fish tail cutter on cutterhead and embedded alloy tooth can be pressed into face cutting " rock mass ".The utility model is country rock-support boots in the on-the-spot TBM tunneling process of model engineering accurately, face-cutterhead, the interaction of country rock-shield, make cutterhead to the pressure of country rock and moment of torsion and the pressure quantification of support boots to country rock, both general geomechanical model test simulation TBM shield excavation machine excavation soft rock tunnel, subway etc. can be applied to, also can be applicable to simulate the excavation of buried hard rock tunnel TBM development machine, primary study support boots pressure, cutterhead thrust is the destruction to shield to the inhibiting effect of rock burst and rock burst.The utility model both can improve the tunnel excavation efficiency in physical simulation experiment and excavate the accuracy of simulation, and the interaction mechanism that can be again research TBM rate of excavation, cutterhead thrust, moment of torsion, support boots pressure, shield pressure and rock burst provides support.The utility model is reasonable in design, simple in structure, easy to use, can be widely used in the excavation experiment of tunnel (tunnel, tunnel, Power House etc.) of geomechanical model test.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is the structural representation of cutterhead.
Fig. 4 is the B-B view of Fig. 1.
Fig. 5 is the C-C view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
See accompanying drawing.
Miniature TBM excavation system for physical simulation experiment tunnel excavation, described miniature TBM excavation system is by cutterhead 1, shield 2, support boots 7, transmission shaft 10, pulling force lifting jack 11, guide rail 13, motor 15, base 17, support stand 18 forms, on described support stand 18, be symmetrically arranged with along its length guide rail 13, being placed on guide rail 13 of base 17 activities, pulling force lifting jack 11 one end are fixedly connected on support stand 18 1 sides, piston 12 terminations of pulling force lifting jack 11 are fixedly connected on base 17, the axis of pulling force lifting jack 11 is parallel to guide rail 13, be positioned on the center line of support stand 18, the external hydraulic control device of pulling force lifting jack 11, motor 15 is fixedly mounted on base 17 tops, pulling force lifting jack 11 can haul the base 17 that motor 15 is installed and slide along guide rail 13 front and back, the rotating shaft 16 of motor 15 is connected by flange 14 with transmission shaft 10 one end, the axis of the axis of transmission shaft 10 and pulling force lifting jack 11 is parallel and be positioned at same perpendicular, the other end of transmission shaft 10 is set with shield 2, shield 2 is fixedly connected with transmission shaft 10, transmission shaft 10 termination is installed with cutterhead 1, cutterhead 1 diameter equates with shield 2 external diameters, motor 15 can drive transmission shaft 10 to rotate, promote cutterhead 1 rotation, cutting face " rock mass ", being sleeved on transmission shaft 10 of support boots 7 activities.
Described support boots 7 are by boots cover 19, and lifting jack 8, supports boots arm 9 and form, and boots cover 19 is hollow cylindrical, and lifting jack 8 is symmetricly set on boots Tao19 both sides, and the piston termination of lifting jack 8 is installed with support boots arm 9, support boots arm 9 curved shapes.Lifting jack 8 is connected with the hydraulic control device of outside, controls the turnover of hydraulic oil in jack cylinder control the size that both sides circular arc supports the flexible of boots arm 9 and is applied to the support boots pressure on " country rock " by hydraulic control device.
Described cutterhead 1 is circular, and cutterhead 1 end face central authorities cross the center of circle and are radially furnished with a fish tail cutter 6, and fish tail cutter 6 symmetria bilateralis are inlayed two above carbide buttons 5, have scum hole 4 on cutterhead 1, and scum hole 4 axis are parallel to transmission shaft 10.First cutter is pressed in face " rock mass " under pressure, rotary cutting under torsional interaction " rock mass ", and cutter is cut the dregs falling and can be driven by the scum hole 4 on cutterhead 1 along going out to enter in the cavity in shield 2 at fish tail cutter 6.
Described shield 2 is annular hollow structure near cutterhead 1 one end, on other end, center surrounding symmetry has isodiametric circular hole 3, the conduit of suction cleaner can, from the tunnel bottom of excavation along entering to shield 2 front ends, pass through circular hole 3 sucking-offs on shield 2 by the dregs of cutting.
Miniature TBM excavation system for physical simulation experiment tunnel excavation of the present utility model specific operation process is in test: first model test piece is loaded on after the primary stress of appointment, miniature TBM excavation system of the present utility model is fixedly mounted on to assigned address, require transmission shaft 10 axis and intend tunnel excavation dead in line, the boots cover 19 of support boots 7 is enclosed within on transmission shaft 10.During excavation, motor 15 drives transmission shaft 10 to rotate with certain speed, pulling force lifting jack 11 pulls the base 17 that motor 15 is installed along guide rail 13 to front slide, transmission shaft 10 drives fixing with it cutterhead 1 and shield 2 rotations, fish tail cutter 6 and carbide button 5 on cutterhead 1 are pushed down in model test piece in thrust, at the broken rock of torsional interaction bottom tool rotary cutting.Excavate after a small step pitch, the hydraulic control device that utilization is connected with support boots 7 is conveyed into hydraulic oil in the oil cylinder of support boots 7 both sides lifting jack 8 by oil pipe, the circular arc support boots arm 9 of both sides is propped up simultaneously, with identical pressure, press to " country rock ", support boots 7, in balance and stability state, then continue excavation.The dregs of cutterhead 1 cutting is taken up by the fish tail cutter 6 on cutterhead 1 and goes out to enter in the cavity in shield 2 by the scum hole 4 on cutterhead 1 is suitable, the suction pipe of suction cleaner is reached to shield 2 front sides along tunnel floor, by dregs sucking-off.After an excavation step pitch finishes, stop creeping into, utilization is laid down the oil pressure in both sides lifting jack 8 with the hydraulic control device that support boots 7 are connected, circular arc support boots arm 9 is retracted, support boots 7 are moved forward to the process of a bit of range simulation working-yard TBM development machine support boots reach along transmission shaft 10, then to lifting jack 8 oil-feeds of support boots 7 both sides, pressurization, stable, continue afterwards excavation, slag tap, circulation and so forth, until excavated.
Claims (4)
1. the miniature TBM for physical simulation experiment tunnel excavation excavates system, it is characterized in that: described miniature TBM excavation system is by cutterhead (1), shield (2), support boots (7), transmission shaft (10), pulling force lifting jack (11), guide rail (13), motor (15), base (17), support stand (18) forms, on described support stand (18), be symmetrically arranged with along its length guide rail (13), what base (17) was movable is placed on guide rail (13), pulling force lifting jack (11) one end is fixedly connected on support stand (18) one sides, piston (12) termination of pulling force lifting jack (11) is fixedly connected on base (17), the axis of pulling force lifting jack (11) is parallel to guide rail (13), be positioned on the center line of support stand (18), motor (15) is fixedly mounted on base (17) top, the rotating shaft (16) of motor (15) is connected by flange (14) with transmission shaft (10) one end, the axis of the axis of transmission shaft (10) and pulling force lifting jack (11) is parallel and be positioned at same perpendicular, the other end of transmission shaft (10) is set with shield (2), shield (2) is fixedly connected with transmission shaft (10), the termination of transmission shaft (10) is installed with cutterhead (1), cutterhead (1) diameter equates with shield (2) external diameter, what support boots (7) were movable is sleeved on transmission shaft (10).
2. the miniature TBM for physical simulation experiment tunnel excavation as claimed in claim 1 excavates system, it is characterized in that: described support boots (7) are by boots cover (19), lifting jack (8), support boots arms (9) form, boots cover (19) is hollow cylindrical, lifting jack (8) is symmetricly set on boots cover (19) both sides, and the piston termination of lifting jack (8) is installed with support boots arms (9), the curved shape of support boots arms (9).
3. the miniature TBM for physical simulation experiment tunnel excavation as claimed in claim 1 excavates system, it is characterized in that: described cutterhead (1) is for circular, cutterhead (1) end face central authorities cross the center of circle and are radially furnished with a fish tail cutter (6), fish tail cutter (6) symmetria bilateralis is inlayed two above carbide buttons (5), on cutterhead (1), have scum hole (4), scum hole (4) axis is parallel to transmission shaft (10).
4. the miniature TBM for physical simulation experiment tunnel excavation as claimed in claim 1 excavates system, it is characterized in that: described shield (2) is annular hollow structure near cutterhead (1) one end, and on other end, center surrounding symmetry has isodiametric circular hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473153.9U CN203396588U (en) | 2013-08-05 | 2013-08-05 | Miniature TBM excavation system for tunnel excavation in physical simulation test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473153.9U CN203396588U (en) | 2013-08-05 | 2013-08-05 | Miniature TBM excavation system for tunnel excavation in physical simulation test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203396588U true CN203396588U (en) | 2014-01-15 |
Family
ID=49908112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320473153.9U Expired - Fee Related CN203396588U (en) | 2013-08-05 | 2013-08-05 | Miniature TBM excavation system for tunnel excavation in physical simulation test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203396588U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776324A (en) * | 2014-01-15 | 2014-05-07 | 中国葛洲坝集团国际工程有限公司 | Device and method for performing tunnel drilling and blasting hole arrangement and rapid lofting and positioning |
| CN105545316A (en) * | 2016-01-29 | 2016-05-04 | 天津大学 | Model test device for simulating shield tunneling machine tunneling in sandy soil |
| CN106121665A (en) * | 2016-07-20 | 2016-11-16 | 中铁工程装备集团有限公司 | The TBM of novel mode of slagging tap and slag tapping method thereof |
-
2013
- 2013-08-05 CN CN201320473153.9U patent/CN203396588U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776324A (en) * | 2014-01-15 | 2014-05-07 | 中国葛洲坝集团国际工程有限公司 | Device and method for performing tunnel drilling and blasting hole arrangement and rapid lofting and positioning |
| CN103776324B (en) * | 2014-01-15 | 2015-12-09 | 中国葛洲坝集团国际工程有限公司 | A kind of tunnel bores quick-fried cloth hole speedy lofting positioner and method |
| CN105545316A (en) * | 2016-01-29 | 2016-05-04 | 天津大学 | Model test device for simulating shield tunneling machine tunneling in sandy soil |
| CN105545316B (en) * | 2016-01-29 | 2017-10-10 | 天津大学 | Model test apparatus for simulating shield machine driving in sand |
| CN106121665A (en) * | 2016-07-20 | 2016-11-16 | 中铁工程装备集团有限公司 | The TBM of novel mode of slagging tap and slag tapping method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103364218A (en) | Miniature TBM (Tunnel Boring Machine) excavation system for tunnel excavation in physical simulation test | |
| CN108802808B (en) | Seismic wave advanced prediction loading device and method for double shield rock rippers | |
| CN205690998U (en) | Simulation tunnel drilling and blasting method excavation bores big gun hole and powder charge integrated apparatus | |
| CN201307365Y (en) | Simulating shield machine for tunnel boring test | |
| CN203396588U (en) | Miniature TBM excavation system for tunnel excavation in physical simulation test | |
| CN209011836U (en) | A kind of rock tunnel(ling) machine and its forward probe and suspension roof support complex conversion mechanism | |
| CN110656949B (en) | Profiling tunneling system and method for model test tunnel excavation of any shape | |
| CN104833569B (en) | Suitable for the excavation relief arrangement of geomechanical model test | |
| CN113833487B (en) | Flexible rock drilling robot capable of penetrating through rock and rock breaking method thereof | |
| CN108414128B (en) | Device and method for monitoring soil loading pressure of excavation face of model shield tunneling machine | |
| CN103075160A (en) | Visual micro tunnel driving system suitable for model testing | |
| CN110261151A (en) | A kind of pipe jacking tunnel method for analog construction and model equipment | |
| CN110673203B (en) | TBM tunnel advance forecast collection system | |
| CN110552711A (en) | Variable cross-section tunnel excavation test device and test excavation method thereof | |
| CN109083648B (en) | Model test intersects hidden cavern excavation manipulator and method | |
| CN204536039U (en) | Automatic sampling visits shovel | |
| CN210123360U (en) | Mine geology rock sampling device | |
| CN208537201U (en) | Test device for simulating shield tunneling machine tunneling | |
| CN202467847U (en) | Center shaft type pre-grooving device | |
| CN110836118A (en) | Equipment and method for rapid and safe tunnel construction under high ground stress and high geological hazards | |
| CN209067208U (en) | Casing guide type is oriented to spiral push pipe drilling machine | |
| CN208223959U (en) | Two-way confining pressure hobboing cutter invades broken rock imitative experimental appliance | |
| CN108286430B (en) | A kind of accurate numerical control automatic excavating device for model test shaft excavation | |
| CN215910133U (en) | Deep soil body drilling device for geotechnical engineering investigation | |
| CN109141949A (en) | Test device for simulating shield tunneling machine tunneling |
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 |
Granted publication date: 20140115 Termination date: 20180805 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |