CN109723448A - One kind promoting position adjustable mechanism for earth pressure balanced shield, EPBS - Google Patents
One kind promoting position adjustable mechanism for earth pressure balanced shield, EPBS Download PDFInfo
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- CN109723448A CN109723448A CN201910066356.8A CN201910066356A CN109723448A CN 109723448 A CN109723448 A CN 109723448A CN 201910066356 A CN201910066356 A CN 201910066356A CN 109723448 A CN109723448 A CN 109723448A
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- hydraulic cylinder
- shield
- epbs
- earth pressure
- pressure balanced
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Abstract
This application discloses the one kind for belonging to Tunnel Engineering technical field to promote position adjustable mechanism for earth pressure balanced shield, EPBS, the application is by N group hydraulic drive component, partition composition, each propelling hydraulic cylinder left end connects with partition, right end and support boots are hinged, support boots are withstood on corresponding section of jurisdiction, according to geology operating condition needs, the corresponding hydraulic cylinder regulating mechanism of each group hydraulic cylinder need to only be adjusted, change hydraulic cylinder in the position of slide opening, the force-bearing situation of i.e. changeable section of jurisdiction, to solve the problems, such as the unbalance loading of shield driving, the application compared with prior art its have the advantage that: regulating mechanism is simple, facilitate feasible, with more practicability；And shield propelling system can change the position of propelling hydraulic cylinder, optimization layout, to improve shield driving efficiency in due course in compound stratum tunneling process.
Description
Technical field
The invention belongs to Tunnel Engineering technical fields, in particular to a kind of to promote the adjustable machine in position for earth pressure balanced shield, EPBS
Structure.
Background technique
Earth pressure balanced shield, EPBS is unearthed and shield driving speed, easily because having no pollution to the environment according to soil pressure variation adjustment
The stabilization for reaching working face reduces earth's surface deformation, can form automatic control and management, mechanical automation degree to driving soil amount
High, the advantages that speed of application is fast, so being at present highest in all types of middle use ratios of China's shield.
Propulsion system is the key components of earth pressure balanced shield, EPBS, mainly carries the jacking task of entire shield, according to
It is pushed ahead by jack thrust.Existing shield propelling system will promote thousand to reduce the complexity of non-zoned system control
Jin top is divided into four groups or five groups, individually controls the pressure and speed of every area's hydraulic cylinder, turning, song in completion shield tunneling process
Line traveling, is rectified a deviation and is moved synchronously at gesture stability, is the important link in shield, plays certainly to shield tunnel construction quality
Qualitative effect.
But existing propulsion system cannot solve in most cases since the position of propelling hydraulic cylinder is fixed and invariable
Certainly shield unbalance loading phenomenon due to caused by special geologic condition or self weight, reversal load.Excessive unbalance loading will lead to section of jurisdiction stress not
The rupture of section of jurisdiction caused by, to influence the tunnel service life；Or because propulsion system structure is complicated, manufacture difficulty is big.
Summary of the invention
The invention aims to solve shield due to special geologic condition or self weight, unbalance loading caused by reversal load is existing
As that by the mobile advancing hydraulic pressure component of pulling rod adjusting mechanism to suitable position, can improve point according to shield specific works condition
The distribution of force of propelling hydraulic cylinder in area to improve the power uniform distribution properties of propulsion system, and then reduces unbalance loading.
The present invention provides a kind of for earth pressure balanced shield, EPBS propulsion position adjustable mechanism, including shield head (1), shield shell (2), N
Group hydraulic drive component (4), partition (3), which is characterized in that the left end of hydraulic drive component (4) is connected with partition (3), right end
Hingedly with support boots (9), support boots (9) is withstood on section of jurisdiction (10), and forward by the entire shield of reaction propulsion of section of jurisdiction (10)
Driving；The hydraulic drive component (4) is made of hydraulic cylinder (13) and hydraulic cylinder regulating mechanism (12).
Further, the hydraulic cylinder regulating mechanism (12) is by supporting member (5), only retainer (6), adjusting nut (7), lock
Strain at bar (8) and slide opening (11) composition.
Further, the cylinder body of hydraulic cylinder is entangled in locking pull rod (8) one end of the propulsion, and the other end is fixed on support structure
On part (5).
Further, the hydraulic cylinder (13) moves in the range of slide opening (11).
Further, according to geological conditions difference, hydraulic cylinder (13) position is adjusted in control locking pull rod (8), on ground
It, can be by unclamping one end adjusting nut (7), tightening the adjusting nut of the other end corresponding thereto under matter upper-soft lower-hard ground
(7), so that locking pull rod (8) controls the suitable position that hydraulic cylinder (13) is in slide opening (11), hydraulic cylinder (13) quantity as a result,
Each subregion is in successively to increase to integral layout from top to bottom；Also or, it is soft under hard in geology, then it is on the contrary.
Further, by above-mentioned adjusting to reach the uniform purpose of propulsion system thrust profiles, to reduce unbalance loading.
Further, in compound stratum, according to the biggish principle of jacking force needed for harder side, by locking pull rod (8)
Suitable position is arrived to adjust hydraulic cylinder (13) top, so that harder side hydraulic cylinder (13) spacing of soil layer becomes smaller, softer side liquid
The spacing of cylinder pressure (13) becomes larger, to make section of jurisdiction (10) uniform force, reduces unbalance loading, and then improve drivage efficiency.
Beneficial effects of the present invention are that compared with prior art, earth pressure balanced shield, EPBS is moved using hydraulic cylinder regulating mechanism
Dynamic propelling hydraulic cylinder top is to suitable position, and regulating mechanism is simple, it is feasible to facilitate, with more practicability；And shield propelling system
The position that propelling hydraulic cylinder can be changed in due course in compound stratum tunneling process, reaches non-homogeneous layout, to realize that layout is excellent
Change, reduces unbalance loading, and then improve shield driving efficiency.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is main view of the invention；
Fig. 3 is uniform layout schematic diagram of the present invention in single stratum propulsion jack；
Fig. 4 is the non-homogeneous layout schematic diagram that the present invention promotes jack under the conditions of compound stratum；
In figure: 1- shield head, 2- shield shell, 3- partition, 4- hydraulic drive component, 5- supporting member, 6- stop retainer,
7- adjusting nut, 8- locking pull rod, 9- support boots, the section of jurisdiction 10-, 11- slide opening, 12- hydraulic cylinder regulating mechanism, 13- are hydraulic
Cylinder.
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, this example mainly includes including shield head (1), shield shell (2), N group hydraulic drive component (4), partition
(3) it forms, the left end of hydraulic drive component (4) is connected with partition (3), and hingedly, support boots (9) withstands on section of jurisdiction for right end and support boots (9)
(10) on, hydraulic cylinder (13) controls it in the range of slide opening (11) by hydraulic cylinder regulating mechanism (12) and moves.Wherein, hydraulic cylinder
Regulating mechanism 12 be by cover in propelling hydraulic cylinder close to top position and pass through a pair of of locking pull rod (8) of supporting member (5),
Only retainer (6) and adjusting nut (7) composition.Advancing hydraulic pressure component (4) left end is connected with partition (3), partition (3) and shield shell
(2) affixed, hingedly, support boots (9) is withstood on corresponding section of jurisdiction (10) for the right end of hydraulic drive component (4) and corresponding support boots (9), and
It is tunneled forward by the entire mechanism of reaction propulsion on section of jurisdiction (10).
As shown in Fig. 2, hydraulic cylinder (13) is circumferentially arranged on the slide opening (11) in partition (3), each hydraulic cylinder (13) two
End has corresponding a pair of supporting members (5), turns adjusting nut (7) and locking pull rod (8) at both ends, locks pull rod
(8) tube-in-tube structure of one end pulls propelling hydraulic cylinder (13), so that propelling hydraulic cylinder (13) moves in slide opening (11).
As shown in figure 3, when balancing earth-pressure shielding machine is under the conditions of single stratum, hydraulic drive component (4) uniform cloth
Office pushes shield machine to tunnel forward in slide opening (11).
As shown in figure 4, when balancing earth-pressure shielding machine is under the conditions of compound stratum, hydraulic drive component shown in Fig. 3
(4) it has been not suitable in the circumferential layout of partition (3), has passed through hydraulic cylinder regulating mechanism (12) mobile hydraulic cylinder (13) to Fig. 4 at this time
Shown position, allows the uniform layout of hydraulic cylinder shown in Fig. 3 (13) to become non-homogeneous layout shown in Fig. 4, and the transmitting of improved force is special
Property, so that the power for making to act on section of jurisdiction is uniform, reduce unbalance loading.
The present invention selects hydraulic cylinder (13) to close in slide opening (11) using hydraulic cylinder regulating mechanism (12) control hydraulic cylinder (13)
Right position is set, so that the jacking force that propulsion system acts on section of jurisdiction is evenly distributed, can solve shield due to complex geological condition
Or self weight, unbalance loading phenomenon caused by reversal load, while this method can flexibly arrange propulsive liquid for various Different Stratas
Propulsion system is improved to the adaptability on stratum in cylinder pressure (13) position.
Claims (7)
1. one kind promotes position adjustable mechanism, including shield head (1), shield shell (2), N group hydraulic drive structure for earth pressure balanced shield, EPBS
Part (4), partition (3), which is characterized in that the left end of hydraulic drive component (4) is connected with partition (3), right end and support boots (9) hinge
It connects, support boots (9) is withstood on section of jurisdiction (10), and is tunneled forward by the entire shield of reaction propulsion of section of jurisdiction (10)；Described
Hydraulic drive component (4) is made of hydraulic cylinder (13) and hydraulic cylinder regulating mechanism (12).
2. according to claim 1 a kind of for earth pressure balanced shield, EPBS propulsion position adjustable mechanism, which is characterized in that described
Hydraulic cylinder regulating mechanism (12) by supporting member (5), only retainer (6), adjusting nut (7), locking pull rod (8) and slide opening (11)
Composition.
3. one kind described according to claim 1~one of 2 promotes position adjustable mechanism for earth pressure balanced shield, EPBS, feature exists
In the cylinder body of hydraulic cylinder is entangled in locking pull rod (8) one end of the propulsion, and the other end is fixed on supporting member (5).
4. one kind described in one of claim requirement 1~2 promotes position adjustable mechanism for earth pressure balanced shield, EPBS, feature exists
In the hydraulic cylinder (13) moves in the range of slide opening (11).
5. one kind described according to claim 1~one of 2 promotes position adjustable mechanism for earth pressure balanced shield, EPBS, feature exists
According to geological conditions difference, hydraulic cylinder (13) position is adjusted in control locking pull rod (8), the soft lower hard place in geology
It, can be by unclamping one end adjusting nut (7), tightening the adjusting nut (7) of the other end corresponding thereto, so that locking is drawn under layer
Bar (8) controls the suitable position that hydraulic cylinder (13) is in slide opening (11), as a result, hydraulic cylinder (13) quantity integral layout from up to
Under each subregion in successively increasing；Also or, it is soft under hard in geology, then it is on the contrary.
6. according to claim 5 a kind of for earth pressure balanced shield, EPBS propulsion position adjustable mechanism, which is characterized in that pass through
Above-mentioned adjusting is to reach the uniform purpose of propulsion system thrust profiles, to reduce unbalance loading.
7. according to claim 5 a kind of for earth pressure balanced shield, EPBS propulsion position adjustable mechanism, which is characterized in that multiple
It closes in stratum, according to the biggish principle of jacking force needed for harder side, hydraulic cylinder (13) top is adjusted by locking pull rod (8) and is arrived
Suitable position, so that harder side hydraulic cylinder (13) spacing of soil layer becomes smaller, the spacing of softer side hydraulic cylinder (13) becomes larger, from
And make section of jurisdiction (10) uniform force, unbalance loading is reduced, and then improve drivage efficiency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910066356.8A CN109723448A (en) | 2019-01-24 | 2019-01-24 | One kind promoting position adjustable mechanism for earth pressure balanced shield, EPBS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910066356.8A CN109723448A (en) | 2019-01-24 | 2019-01-24 | One kind promoting position adjustable mechanism for earth pressure balanced shield, EPBS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109723448A true CN109723448A (en) | 2019-05-07 |
Family
ID=66299868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910066356.8A Pending CN109723448A (en) | 2019-01-24 | 2019-01-24 | One kind promoting position adjustable mechanism for earth pressure balanced shield, EPBS |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273689A (en) * | 2019-06-24 | 2019-09-24 | 湖南科技大学 | A kind of propelling hydraulic cylinder adjusting method for realizing rectangular shield anti-bias load |
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|---|---|---|---|---|
| JPH10131642A (en) * | 1996-10-31 | 1998-05-19 | Shimizu Corp | Differential pressure adjusting window |
| CN101406920A (en) * | 2008-11-21 | 2009-04-15 | 马鞍山市恒兴实业有限公司 | Former of adjustable wire pole anchor ear |
| CN101649743A (en) * | 2009-09-09 | 2010-02-17 | 清华大学 | Adjustable propulsion mechanism for soil pressure balance type shield |
| CN106624690A (en) * | 2016-07-08 | 2017-05-10 | 北京卫星环境工程研究所 | Butt joint auxiliary positioning device for satellite solar wing |
| CN206346748U (en) * | 2016-12-28 | 2017-07-21 | 中铁工程装备集团有限公司 | A kind of circumferential adjusting apparatus in propelling cylinder cylinder barrel end |
| CN210003278U (en) * | 2019-01-24 | 2020-01-31 | 湖南科技大学 | mechanism for adjusting propelling position of earth pressure balance shield |
-
2019
- 2019-01-24 CN CN201910066356.8A patent/CN109723448A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10131642A (en) * | 1996-10-31 | 1998-05-19 | Shimizu Corp | Differential pressure adjusting window |
| CN101406920A (en) * | 2008-11-21 | 2009-04-15 | 马鞍山市恒兴实业有限公司 | Former of adjustable wire pole anchor ear |
| CN101649743A (en) * | 2009-09-09 | 2010-02-17 | 清华大学 | Adjustable propulsion mechanism for soil pressure balance type shield |
| CN106624690A (en) * | 2016-07-08 | 2017-05-10 | 北京卫星环境工程研究所 | Butt joint auxiliary positioning device for satellite solar wing |
| CN206346748U (en) * | 2016-12-28 | 2017-07-21 | 中铁工程装备集团有限公司 | A kind of circumferential adjusting apparatus in propelling cylinder cylinder barrel end |
| CN210003278U (en) * | 2019-01-24 | 2020-01-31 | 湖南科技大学 | mechanism for adjusting propelling position of earth pressure balance shield |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273689A (en) * | 2019-06-24 | 2019-09-24 | 湖南科技大学 | A kind of propelling hydraulic cylinder adjusting method for realizing rectangular shield anti-bias load |
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