CN204899933U - Shield constructs stage of starting and prevents that shield structure machine from planting first device - Google Patents
Shield constructs stage of starting and prevents that shield structure machine from planting first device Download PDFInfo
- Publication number
- CN204899933U CN204899933U CN201520647156.9U CN201520647156U CN204899933U CN 204899933 U CN204899933 U CN 204899933U CN 201520647156 U CN201520647156 U CN 201520647156U CN 204899933 U CN204899933 U CN 204899933U
- Authority
- CN
- China
- Prior art keywords
- backing plate
- landing leg
- rear support
- shield
- support leg
- 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.)
- Active
Links
Landscapes
- Transplanting Machines (AREA)
Abstract
The utility model provides a shield constructs stage of starting and prevents that shield structure machine from planting first device is including establishing before the portal steel is intra -annular support piece, establish the back support piece outside the portal steel loop, asks the rail to be connected preceding support piece and back support piece, preceding support piece include preceding landing leg, preceding landing leg backing plate, preceding track backing plate, preceding landing leg is established in the front between landing leg backing plate and the preceding track backing plate, preceding landing leg backing plate 5 contacts with portal steel loop inner wall, asks the rail to establish in the front on the track backing plate, back support piece is including back landing leg, back landing leg backing plate, back track backing plate, and back landing leg is established between back landing leg backing plate and back track backing plate, and back landing leg is greater than 45 degrees with acute angle contained angle between the landing leg backing plate of back and is lighter than 90 degrees, and the perpendicular bisector of back landing leg 2 landing leg backing plate acute angle contained angle and preceding landing leg backing plate 5 between 4 after and is equal with the acute angle contained angle of portal steel loop. The utility model has the advantages of, can prevent that the shield from constructing the stage shield structure machine that starts and planting the head.
Description
Technical field
The utility model is applicable to solve shield launching in shield method tunnel construction and appears and enter the soil body stage and occur the front end dip that serious sedimentation causes because of position, shield machine shield body front end.
Background technology
The fields such as shield method tunnel construction technology current subway market, municipal water-conveyance tunnel, electric power tunnel are at home widely used, in its quality control on construction, extremely important one is exactly control tunnel axis and the deviate designing axis, therefore in whole shield method tunnel construction process, attitude of shield machine controls to be crucial, and shield launching stage attitude of shield machine of appearing controls particularly important.But during practice of construction shield machine start the stage of appearing due to load basis built on the sand, shield machine driving speed is slow etc., and factor causes shield body head excessive settlement to occur front end dip.Traditional solutions is concreting guide table, pad sandbag etc. bottom portal ring.
Traditional solution such as bottom portal ring concreting guide table, pad sandbag etc. in practice of construction process, more or less there are some problems:
1, the method for concreting guide table bottom portal ring, must wait until concrete final set during construction and shield machine could start to start after possessing enough intensity, delays the duration;
2, bottom portal ring during the method for concreting guide table, the guide table height of building must precisely, too low, do not have load effect, high then needs to cut, construction trouble;
Although 3, adopt the method for pad sandbag to construct simple and convenient, basis is insecure, load DeGrain.
To sum up, although adopt the method load successful operation easier of concreting guide table comparatively large, the engineering time is longer, although and to pad the method for sandbag simple to operate, impracticable.Now the pluses and minuses of comprehensive said method are now invented a kind of steel structure device and fabrication and installation can either do not delayed the duration fast, possess again good load effect.
Summary of the invention
The utility model provide a kind of solve shield launching appear enter the soil body stage due to load basis built on the sand, the device of the front end dip that factor that shield machine driving speed is slow etc. causes shield body head excessive settlement to occur.
Realizing the technical solution of the utility model is, a kind of shield launching stage prevents shield machine cultivation head unit from comprising the front supporting member be located in portal steel loop, the rear support be located at outside portal steel loop, and front supporting member is connected with rear support by holder rail;
Described front supporting member comprises front leg strut, front leg strut backing plate, front track pad, and front leg strut is located between front leg strut backing plate and front track pad, and front leg strut backing plate 5 contacts with portal steel loop inwall, and holder rail is located on front track pad;
Rear support comprises rear support leg, rear support leg backing plate, rear track pad, and rear support leg is located between rear support leg backing plate and rear track pad, and the acute angle between rear support leg and rear support leg backing plate is greater than 45 degree and is less than 90 degree,
Between rear support leg 2 with rear support leg backing plate 4, acute angle is equal with the acute angle of portal steel loop with the perpendicular bisector of front leg strut backing plate 5.
Further, rail longitudinal grade is ask to be 1 ‰-3 ‰.
Further, be connected by front rail clip between front track pad with holder rail.
Further, be connected by rear rail clip between rear track pad with holder rail
Further, on the basis that rear support leg backing plate 4 is placed, the bearing capacity on basis is strengthened by bar planting.
Advantage of the present utility model, design concept and concreting bottom portal ring or to pad the methods such as sandbag obviously different, concreting bottom portal ring, concrete final set must be waited until during construction and shield machine could start to start after possessing enough intensity, construct consuming time, delay the duration, and the height that guide table is built must be precisely, too low, do not have load effect, high then need to cut, construction trouble.And although it is succinct convenient to adopt the mode of pad sandbag to operate, basis is insecure, load DeGrain.These methods are all carry out implementation and operation bottom portal ring, and starting, shield machine between pedestal and portal ring still has part shield body to be in vacant state, so be difficult to fundamentally solve plant head problem.
In addition, in fact this device can regard a kind of extension apparatus of shield launching pedestal as, the holder rail installed on timer docks with the holder rail straight line on shield launching pedestal, and weld together by connecing, and extend to portal ring inside always and direct reach the soil body, when adopting this device to construct, shield machine shield body is on solid load basis always, there will not be front end dip.
It is strong that this device had both possessed portal ring concreting guide table method load ability, possesses again the operation of pad sandbag method fast
Victory is advantage easily, avoids portal ring concreting guide table method constructional difficulties length consuming time simultaneously, the shortcoming that pad sandbag method load ability is weak, with the obvious advantage.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the A-A schematic cross-section of Fig. 1.
Fig. 3 is the B-B schematic cross-section of Fig. 1.
Fig. 4 is the utility model scheme of installation.
Fig. 5 is the C directional diagram of Fig. 4.
Fig. 6 is the D directional diagram of Fig. 4.
As figure, 1, holder rail, 2, rear support leg, 3, front leg strut, 4, rear support leg backing plate, 5, front leg strut backing plate, 6, rear track pad, 7, rear rail clip, 8, front rail clip, 9, front track pad, 10, bar planting, 11, tunnel machine, 12, portal steel loop, 13, front supporting member, 14, rear support, 15, tunnel machine outer contour.
Detailed description of the invention
As in Fig. 1,4, a kind of shield launching stage prevents shield machine cultivation head unit from comprising the front supporting member be located in portal steel loop 12, the rear support be located at outside portal steel loop 12, and front supporting member is connected with rear support by holder rail 1;
As in Fig. 2, front supporting member comprises front leg strut 3, front leg strut backing plate 5, front track pad 9, front leg strut 3 is located between front leg strut backing plate 5 and front track pad 9, front leg strut backing plate 5 contacts with portal steel loop inwall, and holder rail is located at front track pad 9 and goes forward to be connected by front rail clip 8 between track pad 9 with holder rail 1.
As in Fig. 3, rear support comprises rear support leg 2, rear support leg backing plate 4, rear track pad 6, rear support leg 2 is located between rear support leg backing plate 4 and rear track pad 6, acute angle between rear support leg 2 and rear support leg backing plate 4 is greater than 45 degree and is less than 90 degree, is connected between rear track pad 6 with holder rail 1 by rear rail clip 7.
Between rear support leg 2 with rear support leg backing plate 4, acute angle is equal with the acute angle of portal steel loop with the perpendicular bisector of front leg strut backing plate 5.
Preferably, holder rail 1 longitudinal grade is 1 ‰-3 ‰, and further preferably, holder rail 1 longitudinal grade is 2 ‰.
As in Fig. 4, during use, arrange two shield launching stages be parallel to each other prevent shield machine plant head unit, the track of tunnel machine 11 is connected with holder rail 1, as in Fig. 6, rear support 14 is located at outside portal steel loop 12, on the basis that rear support leg backing plate 4 is placed, the bearing capacity on basis is strengthened by bar planting 10, two shield launching stages prevent the holder rail 1 of shield machine cultivation head unit tangent with tunnel machine outer contour 15, just in time can walk on holder rail 1 when tunnel machine 11 enters, as in Fig. 5, front supporting member 13 is located in portal steel loop 12, front leg strut backing plate 5 and portal steel loop 12 phase-contact surface are preferably arc.
This device is all formed by steel processing and fabricating, and the physical dimension of device is through in-site measurement and calculate.
Claims (5)
1. a shield launching stage prevents shield machine from planting head unit, it is characterized in that: described cultivation head unit comprises the front supporting member be located in portal steel loop (12), is located at portal steel loop (12) rear support outward, front supporting member is connected with rear support by holder rail (1);
Described front supporting member comprises front leg strut (3), front leg strut backing plate (5), front track pad (9), front leg strut (3) is located between front leg strut backing plate (5) and front track pad (9), front leg strut backing plate (5) contacts with portal steel loop inwall, and holder rail is located on front track pad (9);
Described rear support comprises rear support leg (2), rear support leg backing plate (4), rear track pad (6), rear support leg (2) is located between rear support leg backing plate (4) and rear track pad (6), acute angle between rear support leg (2) and rear support leg backing plate (4) is greater than 45 degree and is less than 90 degree
Between rear support leg (2) with rear support leg backing plate (4), acute angle is equal with the acute angle of portal steel loop with the perpendicular bisector of front leg strut backing plate (5).
2. a kind of shield launching stage prevents shield machine from planting head unit according to claim 1, it is characterized in that: described holder rail (1) longitudinal grade is 1 ‰-3 ‰.
3. a kind of shield launching stage prevents shield machine from planting head unit according to claim 1, it is characterized in that: be connected by front rail clip (8) between described front track pad (9) with holder rail (1).
4. a kind of shield launching stage prevents shield machine from planting head unit according to claim 1, it is characterized in that: be connected by rear rail clip (7) between described rear track pad (6) with holder rail (1)
5. a kind of shield launching stage prevents shield machine from planting head unit according to claim 1, it is characterized in that: on the basis that support leg liner plate (4) is placed in the rear, is strengthened the bearing capacity on basis by bar planting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520647156.9U CN204899933U (en) | 2015-08-26 | 2015-08-26 | Shield constructs stage of starting and prevents that shield structure machine from planting first device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520647156.9U CN204899933U (en) | 2015-08-26 | 2015-08-26 | Shield constructs stage of starting and prevents that shield structure machine from planting first device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204899933U true CN204899933U (en) | 2015-12-23 |
Family
ID=54922119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520647156.9U Active CN204899933U (en) | 2015-08-26 | 2015-08-26 | Shield constructs stage of starting and prevents that shield structure machine from planting first device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204899933U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219658A (en) * | 2019-07-25 | 2019-09-10 | 中建八局轨道交通建设有限公司 | Prevent shield machine from planting the device and its application method of head |
| CN112780283A (en) * | 2021-01-26 | 2021-05-11 | 三一重型装备有限公司 | Rear support structure and heading machine |
| CN113047850A (en) * | 2021-03-31 | 2021-06-29 | 中国水利水电第一工程局有限公司 | Short-interval shield construction head-planting processing method |
-
2015
- 2015-08-26 CN CN201520647156.9U patent/CN204899933U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219658A (en) * | 2019-07-25 | 2019-09-10 | 中建八局轨道交通建设有限公司 | Prevent shield machine from planting the device and its application method of head |
| CN110219658B (en) * | 2019-07-25 | 2024-04-12 | 中建八局轨道交通建设有限公司 | Device for preventing shield tunneling machine from head planting and use method thereof |
| CN112780283A (en) * | 2021-01-26 | 2021-05-11 | 三一重型装备有限公司 | Rear support structure and heading machine |
| CN113047850A (en) * | 2021-03-31 | 2021-06-29 | 中国水利水电第一工程局有限公司 | Short-interval shield construction head-planting processing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204899933U (en) | Shield constructs stage of starting and prevents that shield structure machine from planting first device | |
| CN204357127U (en) | The monolateral formwork erecting structure of a kind of ultra-deep pre-buried Screw arbor with nut at both-ends of outer wall of basement narrow space | |
| CN207538841U (en) | A kind of hydraulic tunnel inverted arch cambered surface slip form construction device | |
| CN104372923A (en) | Scaffold | |
| CN204920962U (en) | Guide rail for shield construction | |
| CN204899108U (en) | Node structure is hung futilely to marble | |
| CN104929285B (en) | A kind of cladding component construction technology suitable for aerated concrete block work matter | |
| CN204109125U (en) | The shaped device of channel concrete prefabricated component | |
| CN217481307U (en) | Grouting equipment for secondary grouting of shield tunnel | |
| CN204899949U (en) | Bow -shaped steel pipe back up support | |
| CN201214898Y (en) | Low beam template reinforcement machine | |
| CN203034455U (en) | Hoop component for preventing tubular pile from slipping | |
| CN204212158U (en) | A kind of Grouting Pipe with well | |
| CN204225491U (en) | The support chock of formwork keel | |
| CN105317216A (en) | Wall body reversed construction method and wall body and concrete framework casting structure | |
| CN204024054U (en) | Construction formwork piece sealer | |
| CN203769789U (en) | In-hole starting counter force device of shield tunneling machine | |
| CN206539105U (en) | A kind of Novel light high-strength degree FRP electric poles | |
| CN205012638U (en) | Scaffold chuck | |
| CN207079839U (en) | A kind of cobble metope structure | |
| CN205822799U (en) | A kind of electric power raceway groove transformation grouting chute frame | |
| CN204163358U (en) | Scaffold | |
| CN203920973U (en) | A kind of Multi-functional transporting chassis for large-scale penstock installation in tunnel | |
| CN214658978U (en) | Device for building wall body pointing | |
| CN209725488U (en) | A kind of built-in pipe structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |