CN203822315U - Shield starting reaction frame - Google Patents
Shield starting reaction frame Download PDFInfo
- Publication number
- CN203822315U CN203822315U CN201420200492.4U CN201420200492U CN203822315U CN 203822315 U CN203822315 U CN 203822315U CN 201420200492 U CN201420200492 U CN 201420200492U CN 203822315 U CN203822315 U CN 203822315U
- Authority
- CN
- China
- Prior art keywords
- loop body
- steel loop
- reaction frame
- shield
- plate
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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.)
- Expired - Lifetime
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 47
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 74
- 239000010959 steel Substances 0.000 claims abstract description 74
- 239000006185 dispersion Substances 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims description 3
- 239000003351 stiffener Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 16
- 238000009434 installation Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000011378 shotcrete Substances 0.000 abstract 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000013585 weight reducing agent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a shield constructs reaction frame of starting, be favorable to originating for the shield constructs the machine and provide the reaction force in fashioned circular tunnel through the annular steel ring body of circle, fine improvement reaction frame force environment, the transmission route of transform reaction force sets up 16 steel shotcrete on the steel ring body, the steel shotcrete acts on the steel ring body simultaneously, the holistic intensity of reinforcing reaction frame, rigidity and stability reduce reaction frame stress, the steel ring body is formed by a plurality of segmental arcs concatenation simultaneously, make things convenient for the construction and installation of reaction frame in the tunnel, reduce the construction operation risk, improve the shield and construct the tunnelling security. The utility model discloses can be applied to circular tunnel's shield construction.
Description
Technical field
The utility model relates to tunneling shield construction, particularly relates to a kind of shield launching reaction frame.
Background technology
In shield launching when driving,, shield machine is pushed ahead reaction frame that need be by below and is provided reaction force to the driving of shield machine.Reaction frame is generally supported on the reinforced concrete frame of shield launching active well bottom, and considers easy construction, and shield launching active well is all regular rectangular configuration under normal conditions, to adapt to the supporting surface that counter-force is provided.
But, when if shield machine need to start in the circular tunnel inside of mining method construction, because in type tunnel is circular, so can only lean on the anchor ring structure in molded tunnel to provide support counter-force for shield launching tunnels, if so still use rectangle reaction frame structure, the counter-force providing for shield machine so can only be transmitted by four bights of rectangle reaction frame structure, can not give full play to the functional performance of reaction frame, and the transmission of counter-force is too concentrated, counter-force can not be divided and dissipated, this is to providing the inevitable raising greatly of technical requirements of the structural plane of counter-force, increase work risk.
Utility model content
In order to overcome above-mentioned technical problem, the purpose of this utility model is to provide a kind of shield launching reaction frame, to adapt to the shield launching requirement of circular tunnel.
The technical scheme that the utility model adopts is:
A kind of shield launching reaction frame, comprise the circular steel loop body being spliced by several segmental arcs, described steel loop body comprises towards the positive of shield machine with back to the back side of shield machine, the back side of described steel loop body is along the circumferential direction connected to 16 steel and supports, described steel supports and comprises three horizontal supports and the bearing diagonal above horizontal support that is positioned at steel loop body bottom, described horizontal support is perpendicular to steel loop body place plane, and described bearing diagonal is dispersion shape.Circular steel loop body is conducive in the circular tunnel of moulding for shield launching provides reaction force, well improve reaction frame force environment, the pipeline of conversion counter-force, a plurality of steel that arrange on steel loop body support and act on steel loop body simultaneously, the intensity, rigidity and the stability that strengthen reaction frame integral body, reduce reaction frame stress, and steel loop body is spliced by a plurality of segmental arcs simultaneously, reduce construction operation risk, improve shield driving safety.
Further improvement as technique scheme, described steel loop body is hollow frame shape structure, it comprises the front plate and the backplate that are parallel to each other, is connected to inner ring plate and outer ring plate between front plate and backplate, described front plate and backplate form respectively the front and back of steel loop body, and described inner ring plate and outer ring plate form respectively inner ring surface and the outer ring surface of annulus.Therefore, the cross section of steel loop body is the structure of approximate rectangular frame shape, is conducive to weight reduction, also facilitates its assembling moulding simultaneously.
Further improvement as technique scheme, described backplate is provided with the stiffener of butt outer ring plate, the hollow parts of described steel loop body is provided with some interior muscle, and described inner reinforced plate is towards four sides difference butt front plate, backplate, inner ring plate and outer ring plates of the annulus center of circle and inner reinforced plate.The opposite force needing due to shield launching is larger, in order further to guarantee the structural strength of steel loop body to prevent its distortion.
As the further improvement of technique scheme, the backplate of the both sides, junction of described adjacent segmental arc is provided with screw, and the junction plate that bolt is connected on screw connects location by adjacent segmental arc.Junction plate is used for positioning before adjacent segmental arc is welded into integral body, thereby guarantees that the stress that segmental arc is welded into after steel loop body reduces.
Further improvement as technique scheme, described steel loop body is spliced by 5 segmental arcs, described segmental arc comprise bottom sole piece, be positioned at left of sole piece both sides and right, be positioned at the upper left piece of left top and be positioned at the upper right piece of right top, on described sole piece, be connected to supporting leg, described horizontal support is all positioned on sole piece.Steel loop body is reasonably divided into 5 makes reaction frame easier for installation at underground construction.
The beneficial effects of the utility model are: circular steel loop body of the present utility model is conducive in the circular tunnel of moulding for shield launching provides reaction force, well improve reaction frame force environment, the pipeline of conversion counter-force, a plurality of steel that arrange on steel loop body support and act on steel loop body simultaneously, strengthen the intensity of reaction frame integral body, rigidity and stability, reduce reaction frame stress, steel loop body is spliced by a plurality of segmental arcs simultaneously, facilitate the installation of reaction frame in tunnel, reduce construction operation risk, improve shield driving safety.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram of each segmental arc;
Fig. 3 is the A-A sectional drawing in Fig. 2;
Fig. 4 is the enlarged diagram of I position in Fig. 2;
Fig. 5 is the installation site schematic diagram of the utility model reaction frame;
Fig. 6 is that the utility model reaction frame is installed longitudinally figure.
The specific embodiment
Shield launching reaction frame as shown in Fig. 1 and Fig. 5 and Fig. 6, comprises the circular steel loop body 1 being spliced by several segmental arcs.This steel loop body 1 just facing to shield machine, the back side is towards secondary lining 17 and back to shield machine.The back side of steel loop body 1 is along the circumferential direction connected to 16 steel and supports, comprise three horizontal supports 2 and the bearing diagonal above horizontal support 23 that are positioned at steel loop body 1 bottom, horizontal support 2 is perpendicular to steel loop body 1 place plane, bearing diagonal 3 is dispersion shape, and each bearing diagonal 3 axially has angle with steel loop body 1.Circular steel loop body 1 is conducive in the circular tunnel of moulding for shield launching provides reaction force, well improve reaction frame force environment, the pipeline of conversion counter-force, a plurality of steel that arrange on steel loop body 1 support and act on steel loop body 1 simultaneously, the intensity, rigidity and the stability that strengthen reaction frame integral body, reduce reaction frame stress, and steel loop body 1 is spliced by a plurality of segmental arcs simultaneously, reduce construction operation risk, improve shield driving safety.
In horizontal support 2, one of lowermost end is positioned at 6 o ' clock positions of steel loop body 1 with base company's contact of steel loop body 1, all the other tie points of two are symmetrically distributed in 18 ° of positions of base company's contact both sides, take base company's contact as 0 ° of position also in the counterclockwise direction, 45 °, 67.5 °, 90 °, 111.56 °, 135.21 °, 161.48 °, 176.96 °, 204.95 °, 224.92 °, 248.29 °, 270 °, 292.5 °, the 315 ° tie points that are bearing diagonal 3 and steel loop body 1.Through the analysis of finite element software, the tie point that each steel supports all can meet diameter, reaction frame structure that size is different in above-mentioned angle, meets shield launching requirement.
Preferably, as shown in Figure 3 and Figure 4, steel loop body 1 is hollow frame shape structure, it comprises the front plate 4 and the backplate 5 that are parallel to each other, is connected to inner ring plate 6 and outer ring plate 7 between front plate 4 and backplate 5, front plate 4 and backplate 5 form respectively the front and back of steel loop body 1, and inner ring plate 6 and outer ring plate 7 form respectively inner ring surface and the outer ring surface of annulus.Therefore, the cross section of steel loop body 1 is the structure of approximate rectangular frame shape, is conducive to weight reduction, also facilitates its assembling moulding simultaneously.
Backplate 5 is provided with the stiffener 8 of butt outer ring plate 7, and the hollow parts of steel loop body 1 is provided with some interior muscle 9, and inner reinforced plate 9 is towards the annulus center of circle and four sides of inner reinforced plate 9 butt front plate 4, backplate 5, inner ring plate 6 and outer ring plates 7 respectively.The opposite force needing due to shield launching is larger, in order further to guarantee the structural strength of steel loop body 1 to prevent its distortion.
Preferably, the backplate 5 of the both sides, junction of adjacent segmental arc is provided with screw, and the junction plate 10 that bolt is connected on screw connects location by adjacent segmental arc.Junction plate 10 is for positioning before adjacent segmental arc is welded into integral body, thereby guarantees that the stress that segmental arc is welded into after integral body reduces.
As depicted in figs. 1 and 2, in the present embodiment, steel loop body 1 is spliced by 5 segmental arcs, comprise bottom sole piece 11, be positioned at left 12 of sole piece 11 both sides and right 13, be positioned at the upper left piece 14 of left 12 tops and be positioned at the upper right piece 15 of right 13 tops, on sole piece 11, be connected to supporting leg 16, horizontal support 2 is all positioned on sole piece 11.Sole piece 11, left 12 and right 13 arc angle is 90 °, and the arc angle of upper left piece 14 is 48 °, and the arc angle of upper right piece 15 is 42 °.By being reasonably divided into 5, steel loop body 1 make reaction frame easier for installation at underground construction.
The installation and application of above-mentioned reaction frame, comprises the following steps:
(1) steel loop body 1 splicing.In order to prevent that the bad steel loop bodies 1 that cause of 5 segmental arc contrapositions from causing stress to concentrate at the joint of segmental arc, adjacent segmental arc is adjusted circle at joint each other by junction plate 10 location, then is welded into integral body in joint.
(2) construction that steel supports, steel loop body 1 is vertically fixed on secondary lining 17 the place aheads, and the other end of three horizontal supports 2 is connected on the section of jurisdiction 19 of being fixed on secondary lining 17 bottoms, and each bearing diagonal 3 butts are fixed on secondary lining 17.Due in actual use, the diameter of secondary lining 17 profiles generally all can be greater than the size of reaction frame, therefore bearing diagonal 3 butt secondary linings 17 are used in most of region of steel loop body 1, and horizontal support 2 is stressed the most stable, therefore be arranged on steel loop body 1 bottom, with secondary lining 17 section of jurisdiction, bottom 19 butts.Each steel supports the sequence of construction that employing gets on, get off, left and right replaces, is arranged symmetrically with: for easy construction, first install three horizontal supports 2 in bottom, by first stressed below steel loop body 1, reduce inhomogeneous stress; The bearing diagonal 3 of top is installed afterwards; Then the bearing diagonal 3 of arranged on left and right sides replaces symmetrical construction, is all conducive to reduce stress.
(3) as shown in Figure 6, the front of steel loop body 1 connects shield machine by negative ring 18, starts shield-tunneling construction.
The above be the utility model preferred embodiment, it does not form the restriction to the utility model protection domain.
Claims (5)
1. a shield launching reaction frame, it is characterized in that: comprise the circular steel loop body (1) being spliced by several segmental arcs, described steel loop body (1) comprises towards the positive of shield machine with back to the back side of shield machine, the back side of described steel loop body (1) is along the circumferential direction connected to 16 steel and supports, described steel supports and comprises three horizontal supports (2) and the bearing diagonal (3) above horizontal support (2) that is positioned at steel loop body (1) bottom, described horizontal support (2) is perpendicular to steel loop body (1) place plane, and described bearing diagonal (3) is dispersion shape.
2. shield launching reaction frame according to claim 1, it is characterized in that: described steel loop body (1) is hollow frame shape structure, it comprises the front plate (4) and the backplate (5) that are parallel to each other, is connected to inner ring plate (6) and outer ring plate (7) between front plate (4) and backplate (5), described front plate (4) and backplate (5) form respectively the front and back of steel loop body (1), and described inner ring plate (6) and outer ring plate (7) form respectively inner ring surface and the outer ring surface of annulus.
3. shield launching reaction frame according to claim 2, it is characterized in that: described backplate (5) is provided with the stiffener (8) of butt outer ring plate (7), the hollow parts of described steel loop body (1) is provided with some interior muscle (9), and described inner reinforced plate (9) is towards the annulus center of circle and four sides of inner reinforced plate (9) butt front plate (4), backplate (5), inner ring plate (6) and outer ring plates (7) respectively.
4. according to the shield launching reaction frame described in claim 2 or 3, it is characterized in that: the backplate (5) of the both sides, junction of described adjacent segmental arc is provided with screw, the junction plate (10) that bolt is connected on screw connects location by adjacent segmental arc.
5. shield launching reaction frame according to claim 1, it is characterized in that: described steel loop body (1) is spliced by 5 segmental arcs, described segmental arc comprise bottom sole piece (11), left (12) being positioned at sole piece (11) both sides and right (13), be positioned at the upper left piece (14) of left (12) top and be positioned at the upper right piece (15) above right (13), on described sole piece (11), be connected to supporting leg (16), described horizontal support (2) is all positioned on sole piece (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420200492.4U CN203822315U (en) | 2014-04-23 | 2014-04-23 | Shield starting reaction frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420200492.4U CN203822315U (en) | 2014-04-23 | 2014-04-23 | Shield starting reaction frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822315U true CN203822315U (en) | 2014-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420200492.4U Expired - Lifetime CN203822315U (en) | 2014-04-23 | 2014-04-23 | Shield starting reaction frame |
Country Status (1)
| Country | Link |
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| CN (1) | CN203822315U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953353A (en) * | 2014-04-23 | 2014-07-30 | 中铁十五局集团有限公司 | Shield starting reaction frame and mounting and using method thereof |
| CN108457662A (en) * | 2018-02-05 | 2018-08-28 | 浙江大学城市学院 | A kind of control of weak soil shield launching and reinforcement means |
| CN108867968A (en) * | 2018-07-24 | 2018-11-23 | 南京慢城光电科技有限公司 | The steel frame construction of domed base |
| CN110454178A (en) * | 2019-09-05 | 2019-11-15 | 中铁隧道局集团有限公司 | It is originated in large-diameter shield auger with counter-force structure production method and counter-force structure |
-
2014
- 2014-04-23 CN CN201420200492.4U patent/CN203822315U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953353A (en) * | 2014-04-23 | 2014-07-30 | 中铁十五局集团有限公司 | Shield starting reaction frame and mounting and using method thereof |
| CN108457662A (en) * | 2018-02-05 | 2018-08-28 | 浙江大学城市学院 | A kind of control of weak soil shield launching and reinforcement means |
| CN108867968A (en) * | 2018-07-24 | 2018-11-23 | 南京慢城光电科技有限公司 | The steel frame construction of domed base |
| CN108867968B (en) * | 2018-07-24 | 2024-01-30 | 南京慢城光电科技有限公司 | Steel frame structure of dome base |
| CN110454178A (en) * | 2019-09-05 | 2019-11-15 | 中铁隧道局集团有限公司 | It is originated in large-diameter shield auger with counter-force structure production method and counter-force structure |
| CN110454178B (en) * | 2019-09-05 | 2021-08-31 | 中铁隧道局集团有限公司 | Method for manufacturing reaction structure for starting in large-diameter shield tunneling machine tunnel and reaction structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140910 Effective date of abandoning: 20151223 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |