CN109026042A - A kind of propulsion system distributed automatically for shield anti-bias load - Google Patents
A kind of propulsion system distributed automatically for shield anti-bias load Download PDFInfo
- Publication number
- CN109026042A CN109026042A CN201811078397.0A CN201811078397A CN109026042A CN 109026042 A CN109026042 A CN 109026042A CN 201811078397 A CN201811078397 A CN 201811078397A CN 109026042 A CN109026042 A CN 109026042A
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- China
- Prior art keywords
- hydraulic cylinder
- shield
- propulsion system
- radian
- hydraulic
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- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0621—Shield advancing devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/093—Control of the driving shield, e.g. of the hydraulic advancing cylinders
Abstract
The invention discloses a kind of propulsion systems distributed automatically for shield anti-bias load for belonging to Tunnel Engineering technical field, circular bulkheads and shield body are affixed in system, cutterhead cutting rock and soil are transported out by screw conveyor, the right end of hydraulic jack is withstood on section of jurisdiction by supportting boots, and pushing entire shield to tunnel forward by reaction force on section of jurisdiction, all hydraulic cylinder is evenly arranged in propulsion system.The propulsion system of this novel shield anti-bias load of the present invention is that have hydraulic control system to calculate radian θ and the azimuth of propulsion system according to the collected data of pressure sensor being distributed in outside shield machineThus it annular is controlled, equidistant, the hydraulic cylinder group that is continuously arranged in propulsion system open or stops.The control method can adjust in real time the distribution of hydraulic cylinder, to solve the problems, such as the unbalance loading of shield driving.
Description
Technical field
The invention belongs to Tunnel Engineering technical field, specifically a kind of propulsion system distributed automatically for shield anti-bias load
System.The novel controllable propulsion system of applicable various complex geological conditions.
Background technique
Shield is a kind of large-scale engineering machinery for tunnel excavation, and having speed of application, fastly, climate and ground are handed over
The advantages that logical influence and a rapid shaping.The country one, tier 2 cities subway construction use shield to carry out tunnel substantially in recent years
Construction, shield are widely used in all kinds of cities in China and engineering tunnel construction.
Shield propelling system is the key subsystem of shield in the subsystems of shield, mainly carries entire shield
The propulsion task of structure, propelling hydraulic cylinder one end is acted on to overcome shield driving to load in shield body when shield-tunneling construction, other end top
It pushes away on rear mounted section of jurisdiction, realizes that entire shield is tunneled forward by the reaction force of section of jurisdiction.Existing shield driving
System is equidistantly evenly arranged by more than ten or tens hydraulic cylinders, to prevent bottom hydraulic cylinder in shield tunneling process from producing
Raw larger unbalance loading, currently used four zonal controls shield propelling system mostly use lower subregion in the distribution of hydraulic cylinder quantity
Hydraulic cylinder quantity than upper subregion quantity more than principle realize so that lower area's hydraulic cylinder is able to bear bigger pressure
The lower each hydraulic cylinder force in area is uniform.
Shield in the actual construction process, will obtain the construction sufficiently exact Mechanical Data information of ground object typically more
Difficulty, effect when driving between shield and stratum have randomness, and existing four subregions shield propelling system, due to each area
Hydraulic cylinder quantity is fixed, therefore cannot preferably be solved shield and be caused in face of real-time geological conditions, cutterhead self weight, correction and deflecting
Unbalance loading phenomenon.
Summary of the invention
In view of above-mentioned technical problem, the invention proposes a kind of propulsion system distributed automatically for shield anti-bias load,
Purpose is to solve unbalance loading phenomenon caused by shield system faces real-time geological conditions, cutterhead is self-possessed and deflecting.
The present invention includes cutterhead (1), shield body (2), circular bulkheads (3), hydraulic cylinder (5), hydraulicdirectional control valve (4) and hydraulic control
System processed is the main of driving system cutting ground it is characterized in that, the cutterhead (1) is mounted on the front end of shield body (2)
Component, the ground that cutterhead (1) is cut in driving are exported by screw conveyor (8)；Shield body (2) rear end and it is round every
The left end of plate (3) fixed-link, the hydraulic cylinder (5) pads, hydraulic cylinder affixed in pressure-resistant vulcanie block and circular bulkheads 3
(5) stretch is controlled by hydraulicdirectional control valve (4), and the hydraulicdirectional control valve (4) controls its threshold value by hydraulic control system；It is described
The right end of hydraulic cylinder (5) withstood on section of jurisdiction (7) by supportting boots (6), and entire shield is pushed by reaction force on section of jurisdiction (7)
It tunnels forward；In propulsion system in a ring, equidistantly, continuous uniform arrange several hydraulic cylinders (5), form hydraulic cylinder group.
Further, the geological conditions mechanics ginseng when unlatching for being characterized in that the hydraulicdirectional control valve is according to shield driving
Number, calculates radian θ and azimuthIt thereby determines that, the quantity of a continuous arrangement inoperative hydraulic cylinder and position in propulsion system
It sets, wherein the size of radian θ determines the quantity of inoperative hydraulic cylinder, azimuthIt determines the position of inoperative hydraulic cylinder, promotes
Hydraulic cylinder outside system radian θ range is in normal operating conditions.
Further, it is characterized in that the hydraulic cylinder (5) is controlled by hydraulicdirectional control valve (4), is obtained by calculation in difference
Radian θ and azimuth under geological conditionsThus the threshold value of hydraulicdirectional control valve (4), the radian under different geological conditions are controlled
Angle θ and azimuthBe it is different, being located at Suporting structure, geology soft or hard gap is bigger up and down, and the value of radian θ is bigger；Instead
It, then the value of radian θ is with regard to smaller.
Further, the hydraulicdirectional control valve (4) described in being characterized in that is under complex geological condition, according to shield driving geology
Difference controls hydraulic cylinder (5) in radian θ and does not work, and under common upper-soft lower-hard ground, hydraulic cylinder (5) is in radian θ
Off working state, remaining hydraulic cylinder are automatically separated into five areas A, B, C, D, E, due to soft lower hard in geology, so each from top to bottom
A subregion hydraulic cylinder quantity successively increases；By above-mentioned layout to reach the uniform purpose of propulsion system thrust profiles, to subtract
Few unbalance loading.
According to shield driving geomechanics parameter, the different external load of shield is obtained, well-established mathematical modulo is substituted into
Type, by calculating it can be concluded that radian θ and azimuthAnd 5 partition datas, send its data information to hydraulic control system
The working condition of system control hydraulic cylinder, can therefrom adjust the distribution of force of shield hydraulic cylinder in tunneling process in real time, thus
Improve the stress of shield propelling system, uniform distribution properties.
Being established using Soildworks has specific arc angle θ, azimuthShield threedimensional model, import respective external
Load carries out dynamics simulation to shield into ADAMS, and shield can be corrected in time really by demonstrating this new type of control method
The unbalance loading that progradation generates.
The beneficial effect of the present invention compared with prior art is:
First, a kind of propulsion system distributed automatically for shield anti-bias load, controls hydraulic cylinder using hydraulicdirectional control valve, changes
Kind thrust transmission characteristic solves caused unbalance loading when shield system changes in face of load such as real-time geological conditions, self weight, deflectings
Phenomenon increases the geology scope of application of shield.
Second, this system, compared with traditional propulsion system, shield system can flexibly cope with different geology items in driving
Part, the propulsion system thrust hydraulic cylinder in shield system more evenly effectively avoid section of jurisdiction from rupturing.
Third, propulsion system can achieve utmostly by control section hydraulic cylinder inoperative in shield systematic procedure
Energy saving purpose.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is main view of the invention；
Structural schematic diagram when Fig. 3 is driving of the invention；
Fig. 4 is tunneling process main view of the present invention；
In figure: 1- cutterhead, 2- shield body, 3- circular bulkheads, 4- hydraulicdirectional control valve, 5- hydraulic cylinder, 6- support boots, the section of jurisdiction 7-, 8-
Screw conveyor, 9- inoperative hydraulic cylinder group, 10- hydraulic cylinder for working group.
Specific embodiment
Below with reference to example and attached drawing, the technical scheme of the present invention will be further described.
As shown in Figure 1, mainly including cutterhead 1, shield body 2, circular bulkheads 3, hydraulic control valve 4, hydraulic cylinder 5, circular bulkheads 3
On to have pressure-resistant vulcanie block, hydraulic cylinder 5 to be controlled by hydraulicdirectional control valve 4 flexible, 5 left end of hydraulic cylinder pads pressure-resistant vulcanie block
Affixed with circular bulkheads 3, right end is withstood on section of jurisdiction (7) by supportting boots (6), and cutterhead 1 cuts rock and soil passes through helical feed
Machine 8 transfers out, and the right end of hydraulic cylinder 5 is withstood on section of jurisdiction 7 by supportting boots 6.
As shown in Fig. 2, several hydraulic cylinders in a ring, equidistantly, continuous uniform be arranged in system, the liquid in radian θ
Cylinder pressure is in off working state, remaining hydraulic jack is divided into five subregions of A, B, C, D, E, and propulsion system individually controls each point
The hydraulic cylinder group in area works.
As shown in Figures 2 and 3, shield machine is under upper soft lower hard bad ground and tunnels, hydraulic cylinder group 9 in radian θ, not by
Activation is in off working state, and the outer hydraulic cylinder group 10 of radian θ is activated in normal operating conditions, entire propulsion system is removed
Hydraulic cylinder does not work in radian θ, remaining hydraulic cylinder is divided into 5 areas' work, under the upper soft lower hard formation condition, Ge Gefen
Hydraulic cylinder quantity successively increases in area, herein under controllable propulsion system layout, can solve in tunneling process by geological conditions, shield
The phenomenon that self weight and deflecting generate unbalance loading.
As shown in figure 4, there are different external loads under different geology when shield driving, the number having had built up is substituted into
Model is learned, section hydraulic cylinder is controlled and does not work, is i.e. not hydraulic cylinder for working among the above, the range of hydraulic cylinder for working group is not by radian
Angle θ indicates that position is by azimuthIt indicates.
The present invention controls propelling hydraulic cylinder using hydraulicdirectional control valve, by calculating it can be concluded that radian 0 and azimuth
And 5 partition datas, send hydraulic control system, the working condition of the hydraulic cylinder of control system to.It can therefrom adjust in real time
The distribution of force of shield hydraulic cylinder in tunneling process, to improve the stress of shield propelling system, uniform distribution properties are improved
Adaptability of the shield system to stratum.
On the basis of based on the embodiments of the present invention, those skilled in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic belongs to the range that the present invention is protected.
Claims (4)
1. a kind of propulsion system distributed automatically for shield anti-bias load, including cutterhead (1), shield body (2), circular bulkheads (3), liquid
Pressure reversal valve (4), hydraulic cylinder (5) and pressure sensor, hydraulic control system are it is characterized in that, the cutterhead (1) is mounted on
The front end of shield body (2), is the main member of driving system cutting ground, and the ground that cutterhead (1) is cut in driving passes through spiral shell
Revolve conveyer (8) output；Shield body (2) rear end and circular bulkheads (3) fixed-link, the left end of the hydraulic cylinder (5)
, the stretching by hydraulicdirectional control valve (4) control of hydraulic cylinder (5) affixed in pressure-resistant vulcanie block and circular bulkheads 3 is padded, it is described
Hydraulicdirectional control valve (4) controls its threshold value by hydraulic control system；The pressure sensor acquires data, sends hydraulic control to
System calculates and obtains current geology condition data；The right end of the hydraulic cylinder (5) withstands on section of jurisdiction (7) by supportting boots (6)
On, and push entire shield to tunnel forward by reaction force on section of jurisdiction (7)；In propulsion system in a ring, equidistantly, continuous uniform
It arranges several hydraulic cylinders (5), forms hydraulic cylinder group.
2. a kind of propulsion system distributed automatically for shield anti-bias load according to claim 1, which is characterized in that described
Hydraulicdirectional control valve unlatching be according to pressure sensor acquire data, send hydraulic control system to and calculate current shield
The radian θ of geological conditions and azimuth when drivingThereby determine that, in automatic distribution control propulsion system one continuously arrange it is non-
The quantity of hydraulic cylinder for working and position, wherein the size of radian θ determines the quantity of inoperative hydraulic cylinder, azimuthIt determines non-
The position of hydraulic cylinder for working, the hydraulic cylinder outside propulsion system radian θ range are in normal operating conditions.
3. a kind of propulsion system distributed automatically for shield anti-bias load, feature described according to claim 1~one of 2 exist
In the hydraulic cylinder (5) is controlled by hydraulicdirectional control valve (4), is acquired data by pressure sensor, is sent hydraulic control system to
Radian θ and azimuth are calculated after systemThus the threshold value of hydraulicdirectional control valve (4), the radian under different geological conditions are controlled
θ and azimuthBe it is different, being located at Suporting structure, geology soft or hard gap is bigger up and down, and the value of radian θ is bigger；Instead
It, then the value of radian θ is with regard to smaller.
4. a kind of propulsion system distributed automatically for shield anti-bias load, feature described according to claim 1~one of 2 exist
In the hydraulicdirectional control valve (4), according to shield driving Geological Differences, controls hydraulic in radian θ under complex geological condition
Cylinder (5) does not work, and under common upper-soft lower-hard ground, hydraulic cylinder (5) is in off working state, remaining hydraulic cylinder in radian θ
Five areas A, B, C, D, E are automatically separated into, due to soft lower hard in geology, so each subregion hydraulic cylinder quantity successively increases from top to bottom
It is more；By above-mentioned layout to reach the uniform purpose of propulsion system thrust profiles, to reduce unbalance loading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811078397.0A CN109026042B (en) | 2018-09-14 | 2018-09-14 | Propulsion system for shield anti-unbalance-loading automatic distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811078397.0A CN109026042B (en) | 2018-09-14 | 2018-09-14 | Propulsion system for shield anti-unbalance-loading automatic distribution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109026042A true CN109026042A (en) | 2018-12-18 |
| CN109026042B CN109026042B (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811078397.0A Active CN109026042B (en) | 2018-09-14 | 2018-09-14 | Propulsion system for shield anti-unbalance-loading automatic distribution |
Country Status (1)
| Country | Link |
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| CN (1) | CN109026042B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707392A (en) * | 2019-03-13 | 2019-05-03 | 江苏建筑职业技术学院 | Shield machine tunnels angle vernier device |
| CN110130907A (en) * | 2019-05-21 | 2019-08-16 | 湖南科技大学 | A method of for measuring propulsion system unbalance loading |
| CN111810174A (en) * | 2020-07-24 | 2020-10-23 | 上海隧道工程有限公司 | Method for calculating jacking force distribution of shield propulsion system in push-splicing synchronization mode |
| CN112593959A (en) * | 2020-11-18 | 2021-04-02 | 浙大宁波理工学院 | Impedance control-based shield tunneling machine compliance control method |
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| DE202004020397U1 (en) * | 2004-10-20 | 2005-05-19 | Hochtief Construction Ag | Arrangement to be used during start-up of forward thrust of tunneling device, comprising pressure ring held by threaded bars |
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| CN104196540A (en) * | 2014-05-04 | 2014-12-10 | 中铁工程装备集团有限公司 | Automatic and random grouping push control system of shield tunneling machine |
| CN108316935A (en) * | 2018-02-02 | 2018-07-24 | 中铁隧道局集团有限公司 | A kind of shield machine attitude adjusting method of complex controll |
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| JP4206054B2 (en) * | 2004-04-14 | 2009-01-07 | 飛島建設株式会社 | Shield drilling assembly simultaneous construction method |
| DE202004020397U1 (en) * | 2004-10-20 | 2005-05-19 | Hochtief Construction Ag | Arrangement to be used during start-up of forward thrust of tunneling device, comprising pressure ring held by threaded bars |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707392A (en) * | 2019-03-13 | 2019-05-03 | 江苏建筑职业技术学院 | Shield machine tunnels angle vernier device |
| CN110130907A (en) * | 2019-05-21 | 2019-08-16 | 湖南科技大学 | A method of for measuring propulsion system unbalance loading |
| CN110130907B (en) * | 2019-05-21 | 2020-10-02 | 湖南科技大学 | Method for measuring unbalanced load of propulsion system |
| CN111810174A (en) * | 2020-07-24 | 2020-10-23 | 上海隧道工程有限公司 | Method for calculating jacking force distribution of shield propulsion system in push-splicing synchronization mode |
| CN111810174B (en) * | 2020-07-24 | 2021-11-19 | 上海隧道工程有限公司 | Method for calculating jacking force distribution of shield propulsion system in push-splicing synchronization mode |
| CN112593959A (en) * | 2020-11-18 | 2021-04-02 | 浙大宁波理工学院 | Impedance control-based shield tunneling machine compliance control method |
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| Publication number | Publication date |
|---|---|
| CN109026042B (en) | 2020-07-10 |
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