CN108691549A - A kind of experimental provision and its test method of simulation cutter head of shield machine cutting section of jurisdiction - Google Patents
A kind of experimental provision and its test method of simulation cutter head of shield machine cutting section of jurisdiction Download PDFInfo
- Publication number
- CN108691549A CN108691549A CN201810693880.3A CN201810693880A CN108691549A CN 108691549 A CN108691549 A CN 108691549A CN 201810693880 A CN201810693880 A CN 201810693880A CN 108691549 A CN108691549 A CN 108691549A
- Authority
- CN
- China
- Prior art keywords
- jurisdiction
- section
- shield
- pedestal
- frame
- 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.)
- Pending
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 40
- 238000004088 simulation Methods 0.000 title claims abstract description 30
- 238000010998 test method Methods 0.000 title claims abstract description 8
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 230000001737 promoting effect Effects 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses experimental provision and its test method that a kind of simulation cutter head of shield machine cuts section of jurisdiction, solve the problems, such as that simulation cutter head of shield machine cutting tunnel duct piece measured data of experiment accuracy is low in the prior art, experimentation is non-intuitive.The present invention includes pedestal, and the side of pedestal is equipped with reaction frame, and the other side of pedestal is equipped with section of jurisdiction holder, and the outside of section of jurisdiction is detachably equipped with native case, be equipped between reaction frame and section of jurisdiction holder be used to support shield model machine originate frame;The shield model machine includes cutterhead, shield body, main drive system and propulsion system, cutterhead is arranged in one end of shield body, and main drive system and propulsion system are arranged at the inside of shield body, and main drive system is connected with cutterhead, it originates frame and is used to support shield body, shield body is slided on originating frame.Whole process of the present invention is very intuitive, and convenient for observation, for experimental data close to practice of construction situation, data are accurate, provide secure support for the design and manufacture of shield machine, make up the market vacancy.
Description
Technical field
The present invention relates to tunnel construction simulation technical fields, particularly relate to a kind of reality of simulation cutter head of shield machine cutting section of jurisdiction
Experiment device and its test method.
Background technology
Construction of Urban Rail Traffic and Urban Underground piping lane development are swift and violent in recent years.It is adjacent when construction of underground tunnel
Service channel can be set between tunnel, and service channel can play the role of connection, draining fire prevention and as emergency escape channel.If with
Shield construction hole-throughs service channel, and shield machine injection tunnel and when being pierced by out of tunnel in tunnel, cutterhead is to arched tunnel
Section of jurisdiction cutting, match condition are emphasis of people's attention.Currently, not yet being capable of real simulation cutter head of shield machine cutting tunneltron
The device of piece, therefore design a kind of cutter head of shield machine that reference frame can be provided for the design and manufacture of shield machine equipment with shield-tunneling construction
The experimental provision for cutting section of jurisdiction is necessary.
Invention content
For the deficiency in above-mentioned background technology, the present invention proposes a kind of experiment dress of simulation cutter head of shield machine cutting section of jurisdiction
It sets and its test method, solves in the prior art that simulation cutter head of shield machine cutting tunnel duct piece experimental provision is deficient, measures number
, experimentation non-intuitive problem low according to accuracy.
The technical proposal of the invention is realized in this way:A kind of experimental provision of simulation cutter head of shield machine cutting section of jurisdiction, packet
Pedestal is included, the side of pedestal is equipped with the reaction frame that counter-force is provided for shield model machine, and the other side of pedestal is equipped with for section of jurisdiction to be clamped
Section of jurisdiction holder, the outside of section of jurisdiction is detachably equipped with native case, is equipped between reaction frame and section of jurisdiction holder and is used to support shield model machine
Originate frame;The shield model machine includes cutterhead, shield body, main drive system and propulsion system, and cutterhead is arranged in one end of shield body,
Main drive system and propulsion system are arranged at the inside of shield body, and main drive system is connected with cutterhead, and shield body is slided with frame is originated
Dynamic connection, propulsion system are connected by counter-force support column with reaction frame.
The section of jurisdiction holder includes body frame, and the side of body frame is equipped with the L-type support arm of clamping section of jurisdiction, and the upper end of body frame, which is equipped with, hangs
Ear, body frame are connected by pillar with reaction frame.
The body frame is detachably connected with pedestal, and pedestal is stretched out in the lower end of body frame, and L-type support arm is symmetricly set on body frame.
The counter-force support column is arranged on reaction frame in a ring, and reaction frame is connected by reinforcing prop with pedestal.
A kind of test method of the experimental provision of simulation cutter head of shield machine cutting section of jurisdiction, including shield model machine is in main tunnel
It is pierced by the cutting section of jurisdiction course of work and the shield model machine injection cutting section of jurisdiction course of work;Wherein, shield model machine is worn in main tunnel
Go out to cut the section of jurisdiction course of work to include the following steps:S1:Section of jurisdiction front is mounted on the holder of section of jurisdiction, will be managed by handling apparatus
Plate rack is lifted on pedestal;S2:Native case is lifted on pedestal, the rear-face contact of native case and section of jurisdiction, and native case and section of jurisdiction it
Between have certain pressure;S3:Start shield model machine, shield model machine edge under the action of propulsion system and counter-force support column originates frame
It pushes ahead, cutterhead carries out simulation cutting to section of jurisdiction;S4:Shield model machine is pierced by section of jurisdiction, completes simulation cutting;
The shield model machine injection cutting section of jurisdiction course of work includes the following steps:a:Native case is unloaded from pedestal, while making shield
Model machine is in original state;b:Section of jurisdiction holder is unloaded from pedestal, then new section of jurisdiction reverse side is mounted on pedestal, is passed through
Section of jurisdiction holder is lifted on pedestal by handling apparatus;c:Start shield model machine, shield model machine is in propulsion system and counter-force support column
Under the action of push ahead along originating frame, cutterhead carries out simulation cutting to section of jurisdiction;d:Shield model machine is pierced by section of jurisdiction, completes simulation and cuts
It cuts.
The present invention can be utilized for shield machine and dig poling piece and two kinds of shapes when injection tunnel duct piece out of tunnel when originating
The simulated experiment of state, the truth of cutting power and the practical shield-tunneling construction of grasp for detecting knife disc tool, whole process
Very intuitive, convenient for observation, for experimental data close to practice of construction situation, data are accurate, and for the design and manufacture of shield machine, provide can
By support, the market vacancy is made up, there is higher promotional value and market value.
Description of the drawings
In order to illustrate the embodiments of the present invention more clearly, attached drawing makees letter needed in being described below to embodiment
Singly introduce, it should be apparent that, drawings in the following description are only some embodiments of the invention, for the common skill in this field
For art personnel, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is that shield model machine of the present invention is pierced by section of jurisdiction Initial condition structural schematic diagram in main tunnel.
Fig. 2 is that shield model machine of the present invention is pierced by cutting tube piece state structural schematic diagram in main tunnel.
Fig. 3 is shield model machine injection section of jurisdiction of the present invention Initial condition structural schematic diagram.
Fig. 4 is that section of jurisdiction primary state structural schematic diagram is cut in shield model machine injection of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of not making the creative labor
Embodiment shall fall within the protection scope of the present invention.
As shown in Figs 1-4, embodiment 1, a kind of experimental provision of simulation cutter head of shield machine cutting section of jurisdiction, including pedestal 1, base
The side of frame 1 is equipped with provides the reaction frame 4 of counter-force for shield model machine 2, and in experimentation, reaction frame is fixed, is shield sample
Machine provides counter-force support.The other side of pedestal 1 is equipped with the section of jurisdiction holder 6 for section of jurisdiction 5 to be clamped, and section of jurisdiction holder and pedestal are detachable
Connection, is lifted by handling apparatus;The outside of section of jurisdiction 5 is detachably equipped with native case 7, and native case is in contact with section of jurisdiction, using native case
It is close to section of jurisdiction and provides extruding force using the soil body in native case for section of jurisdiction, for simulating the actual loading feelings of subterranean tunnel section of jurisdiction
Condition.Be equipped between reaction frame 4 and section of jurisdiction holder 6 be used to support shield model machine 2 originate frame 3, in the process of shield model machine driving
In, shield model machine edge originates frame and moves, and shield model machine generation level in tunneling process is avoided to turn on one's side.The shield model machine 2 wraps
Cutterhead 2-1, shield body 2-2, main drive system 2-3 and propulsion system 2-4 are included, and practical shield machine operation principle having the same,
It is connected with external power supply and hydraulic power source.Cutterhead 2-1 is arranged in one end of shield body 2-2, main drive system 2-3 and propulsion system 2-
4 are arranged at the inside of shield body 2-2, and main drive system 2-3 is connected with cutterhead 2-1, and shield body 2-2 is slidably connected with frame 3 is originated,
Shield body is connected by counter-force support column 8 with reaction frame 4 along frame sliding, propulsion system 2-4 is originated in tunneling process.It is described anti-
Power support column 8 is arranged in a ring on reaction frame 4, is connected one by one with the propelling cylinder of propulsion system 2-4, and reaction frame 4 is by adding
Strong column 9 is connected with pedestal 1, plays the role of reaction of bearing frame.
Further, the section of jurisdiction holder 6 includes body frame 6-1, and the side of body frame 6-1 is equipped with the L-type support arm 6- of clamping section of jurisdiction 5
The outer end of 2, L-type support arm 6-2 are for being clamped section of jurisdiction.The upper end of body frame 6-1 is equipped with lifting lug 6-3, is used for the handling of section of jurisdiction holder.
Body frame 6-1 is connected by pillar 6-4 with reaction frame 4, plays the role of supporting body frame.The body frame 6-1 is detachable with pedestal 1
Connection realizes that pedestal 1 is stretched out in the handling installation of section of jurisdiction holder, the lower end of body frame 6-1, the clamping convenient for section of jurisdiction and section of jurisdiction holder
Installation, L-type support arm 6-2 are symmetricly set on body frame 6-1, and two-part clamping up and down is formed to section of jurisdiction, it is ensured that section of jurisdiction consolidates.
A kind of test method of the experimental provision of simulation cutter head of shield machine cutting section of jurisdiction, including shield model machine is in main tunnel
It is pierced by the cutting section of jurisdiction course of work and the shield model machine injection cutting section of jurisdiction course of work;Wherein, shield model machine is worn in main tunnel
Go out to cut the section of jurisdiction course of work to include the following steps:S1:Section of jurisdiction front is mounted on the holder of section of jurisdiction, i.e. the concave surface of section of jurisdiction and shield
Structure model machine is corresponding, and then section of jurisdiction holder is lifted on pedestal by handling apparatus;S2:Native case is lifted on pedestal, soil
The rear-face contact of case and section of jurisdiction, the i.e. arc convex surface of section of jurisdiction are in contact with native case, and have certain pressure between native case and section of jurisdiction,
It is close to section of jurisdiction using native case and provides extruding force using the soil body in native case for section of jurisdiction, for simulating the reality of subterranean tunnel section of jurisdiction
Stressing conditions;S3:Start shield model machine, shield model machine is under the action of propulsion system and counter-force support column along originating frame to being pushed forward
Into cutterhead carries out simulation cutting to section of jurisdiction;S4:Shield model machine is pierced by section of jurisdiction, completes simulation cutting.
The shield model machine injection cutting section of jurisdiction course of work includes the following steps:a:Native case is unloaded from pedestal, is made simultaneously
Shield model machine is in original state;b:Section of jurisdiction holder is unloaded from pedestal, then new section of jurisdiction reverse side is mounted on pedestal,
I.e. the arc convex surface of section of jurisdiction is corresponding with shield model machine, and section of jurisdiction holder is lifted on pedestal by handling apparatus;c:Start shield
Structure model machine, shield model machine edge under the action of propulsion system and counter-force support column originate frame and push ahead, and cutterhead carries out section of jurisdiction
Simulation cutting;d:Shield model machine is pierced by section of jurisdiction, completes simulation cutting.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (5)
1. a kind of experimental provision of simulation cutter head of shield machine cutting section of jurisdiction, it is characterised in that:Including pedestal(1), pedestal(1)One
It is shield model machine that side, which is equipped with,(2)The reaction frame of counter-force is provided(4), pedestal(1)The other side be equipped with for section of jurisdiction to be clamped(5)Pipe
Plate rack(6), section of jurisdiction(5)Outside be detachably equipped with native case(7), reaction frame(4)With section of jurisdiction holder(6)Between be equipped with for branch
Pole structure model machine(2)Originate frame(3);The shield model machine(2)Including cutterhead(2-1), shield body(2-2), main drive system(2-
3)And propulsion system(2-4), cutterhead(2-1)It is arranged in shield body(2-2)One end, main drive system(2-3)And propulsion system(2-
4)It is arranged at shield body(2-2)Inside, main drive system(2-3)With cutterhead(2-1)It is connected, shield body(2-2)With originate frame
(3)It is slidably connected, propulsion system(2-4)Pass through counter-force support column(8)With reaction frame(4)It is connected.
2. the experimental provision of simulation cutter head of shield machine cutting section of jurisdiction according to claim 1, it is characterised in that:The section of jurisdiction
Holder(6)Including body frame(6-1), body frame(6-1)Side be equipped with clamping section of jurisdiction(5)L-type support arm(6-2), body frame(6-1)'s
Upper end is equipped with lifting lug(6-3), body frame(6-1)Pass through pillar(6-4)With reaction frame(4)It is connected.
3. the experimental provision of simulation cutter head of shield machine cutting section of jurisdiction according to claim 2, it is characterised in that:The body frame
(6-1)With pedestal(1)It is detachably connected, body frame(6-1)Lower end stretch out pedestal(1), L-type support arm(6-2)It is symmetricly set on master
Frame(6-1)On.
4. the experimental provision of simulation cutter head of shield machine cutting section of jurisdiction according to claim 1 or 3, it is characterised in that:It is described
Counter-force support column(8)It is arranged in a ring in reaction frame(4)On, reaction frame(4)Pass through reinforcing prop(9)With pedestal(1)It is connected.
5. a kind of test method of the experimental provision of simulation cutter head of shield machine cutting section of jurisdiction as described in claim 1, feature
It is:The cutting section of jurisdiction course of work is pierced by main tunnel and shield model machine injection cutting section of jurisdiction is worked including shield model machine
Journey;Wherein, shield model machine is pierced by the cutting section of jurisdiction course of work in main tunnel and includes the following steps:S1:Section of jurisdiction front is installed
On the holder of section of jurisdiction, section of jurisdiction holder is lifted on pedestal by handling apparatus;S2:Native case is lifted on pedestal, native case with
The rear-face contact of section of jurisdiction, and there is certain pressure between native case and section of jurisdiction;S3:Start shield model machine, shield model machine is promoting system
Edge originates frame and pushes ahead under the action of system and counter-force support column, and cutterhead carries out simulation cutting to section of jurisdiction;S4:Shield model machine is pierced by
Simulation cutting is completed in section of jurisdiction;
The shield model machine injection cutting section of jurisdiction course of work includes the following steps:a:Native case is unloaded from pedestal, while making shield
Model machine is in original state;b:Section of jurisdiction holder is unloaded from pedestal, then new section of jurisdiction reverse side is mounted on pedestal, is passed through
Section of jurisdiction holder is lifted on pedestal by handling apparatus;c:Start shield model machine, shield model machine is in propulsion system and counter-force support column
Under the action of push ahead along originating frame, cutterhead carries out simulation cutting to section of jurisdiction;d:Shield model machine is pierced by section of jurisdiction, completes simulation and cuts
It cuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810693880.3A CN108691549A (en) | 2018-06-29 | 2018-06-29 | A kind of experimental provision and its test method of simulation cutter head of shield machine cutting section of jurisdiction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810693880.3A CN108691549A (en) | 2018-06-29 | 2018-06-29 | A kind of experimental provision and its test method of simulation cutter head of shield machine cutting section of jurisdiction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108691549A true CN108691549A (en) | 2018-10-23 |
Family
ID=63850428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810693880.3A Pending CN108691549A (en) | 2018-06-29 | 2018-06-29 | A kind of experimental provision and its test method of simulation cutter head of shield machine cutting section of jurisdiction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108691549A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909847A (en) * | 2019-03-18 | 2019-06-21 | 上海隧道工程有限公司 | For being ground the grinding attachment of concrete pipe sheet |
| CN113605910A (en) * | 2021-08-25 | 2021-11-05 | 中国铁建重工集团股份有限公司 | Full-rotation construction equipment and construction method for communication channel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644467A (en) * | 2012-04-27 | 2012-08-22 | 上海隧道工程股份有限公司 | Tunnel connecting passage construction method for directly cutting segment rings through pipe jacking machine |
| CN107123359A (en) * | 2017-07-12 | 2017-09-01 | 四川汇智众创科技有限公司 | A kind of test-type shield machine Promoting Experiment platform |
| CN108005669A (en) * | 2018-02-02 | 2018-05-08 | 中铁隧道局集团有限公司 | A kind of balancing earth-pressure shielding machine analogue experiment installation |
| CN208441844U (en) * | 2018-06-29 | 2019-01-29 | 中铁工程装备集团有限公司 | A kind of experimental provision of simulation cutter head of shield machine cutting section of jurisdiction |
-
2018
- 2018-06-29 CN CN201810693880.3A patent/CN108691549A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644467A (en) * | 2012-04-27 | 2012-08-22 | 上海隧道工程股份有限公司 | Tunnel connecting passage construction method for directly cutting segment rings through pipe jacking machine |
| CN107123359A (en) * | 2017-07-12 | 2017-09-01 | 四川汇智众创科技有限公司 | A kind of test-type shield machine Promoting Experiment platform |
| CN108005669A (en) * | 2018-02-02 | 2018-05-08 | 中铁隧道局集团有限公司 | A kind of balancing earth-pressure shielding machine analogue experiment installation |
| CN208441844U (en) * | 2018-06-29 | 2019-01-29 | 中铁工程装备集团有限公司 | A kind of experimental provision of simulation cutter head of shield machine cutting section of jurisdiction |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909847A (en) * | 2019-03-18 | 2019-06-21 | 上海隧道工程有限公司 | For being ground the grinding attachment of concrete pipe sheet |
| CN113605910A (en) * | 2021-08-25 | 2021-11-05 | 中国铁建重工集团股份有限公司 | Full-rotation construction equipment and construction method for communication channel |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20221214 Address after: 450016 No. 99 Sixth Avenue, Zhengzhou economic and Technological Development Zone, Henan Applicant after: CHINA RAILWAY ENGINEERING EQUIPMENT GROUP Co.,Ltd. Applicant after: Ningbo Rail Transit Group Co.,Ltd. Address before: 450016 No. 99 Sixth Avenue, Zhengzhou economic and Technological Development Zone, Henan Applicant before: CHINA RAILWAY ENGINEERING EQUIPMENT GROUP Co.,Ltd. |
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| TA01 | Transfer of patent application right |