CN214836354U - Shield split starting mobile reaction frame monitoring device - Google Patents
Shield split starting mobile reaction frame monitoring device Download PDFInfo
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- CN214836354U CN214836354U CN202120681909.3U CN202120681909U CN214836354U CN 214836354 U CN214836354 U CN 214836354U CN 202120681909 U CN202120681909 U CN 202120681909U CN 214836354 U CN214836354 U CN 214836354U
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- reaction frame
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- support body
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Abstract
The utility model discloses a shield constructs components of a whole that can function independently mobile reaction frame monitoring devices that starts to solve the inconvenient technical problem of current shield structure reaction frame monitoring. The utility model discloses a first percentage table, portable reaction frame, the platform of leading, the pre-buried steel sheet of portal wall of starting, portable reaction frame include support body, steel ring, stull, steel shotcrete, and support body and the platform sliding connection that leads that starts, steel ring are fixed in the shield and construct the tail portion, and steel ring and support body pass through stull fixed connection, and support body and the pre-buried steel sheet of portal wall of a hole pass through steel shotcrete fixed connection, and first percentage table sets up between steel shotcrete and the pre-buried steel sheet of portal wall of a hole. The beneficial effects of the utility model reside in that: can realize timely monitoring, and is accurate and high in safety.
Description
Technical Field
The utility model relates to a shield constructs the components of a whole that can function independently technical field that starts, concretely relates to shield constructs components of a whole that can function independently and starts portable reaction frame monitoring devices.
Background
In recent years, shield tunnel tunneling construction is increasingly applied to underground spaces, particularly urban subway engineering, hydraulic engineering, urban comprehensive pipe gallery engineering and the like. The shield originating working well is located in an urban area, and the area of the working well is limited due to the fact that buildings and personnel are dense, so that the shield originating mode has to be a split originating mode.
In order to further efficiently utilize the limited operation space of the working well, the reaction frame is often a movable reaction frame. Most of the movable reaction frames are in a combined steel structure form, and the movable reaction frames are stressed stably and anti-floating stably in the using process, and how to accurately judge the starting tunneling completion, are not stressed, so that the reaction frames are guided to be dismantled more importantly.
Disclosure of Invention
The utility model provides a shield constructs components of a whole that can function independently portable reaction frame of originating to solve the inconvenient technical problem of current shield structure reaction frame monitoring.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a shield constructs components of a whole that can function independently and starts portable reaction frame monitoring devices, includes first percentage table, portable reaction frame, the guide platform of starting, the pre-buried steel sheet of portal wall, portable reaction frame includes support body, steel ring, stull, steel shotcrete, the support body with guide platform sliding connection starts, the steel ring is fixed in the shield and constructs the tail portion, the steel ring with the support body passes through stull fixed connection, the support body with the pre-buried steel sheet of portal wall passes through steel shotcrete fixed connection, first percentage table set up in the steel shotcrete with between the pre-buried steel sheet of portal wall.
Furthermore, the first percentage table includes magnetic base, dial plate, probe needle, the magnetic base is fixed in on the pre-buried steel sheet of hole portal wall, the probe needle set up in on the dial plate and with the steel shotcrete contacts, the dial plate is fixed in through the connecting rod on the magnetic base.
Furthermore, a second dial indicator is arranged between the cross brace and the originating guide table, and a probe of the second dial indicator is perpendicular to the originating guide table.
Furthermore, a third dial indicator is arranged between the frame body and the originating guide table, and a probe of the third dial indicator is parallel to the originating guide table.
Furthermore, the starting guide platform is arranged below the movable reaction frame, 4 steel rails are arranged on the starting guide platform, and a frame body of the reaction frame is clamped on the steel rails and can slide on the steel rails.
Furthermore, the frame body of the movable reaction frame is in a frame shape, and the cross brace is clamped on the starting guide platform.
Furthermore, anchoring reinforcing steel bars are welded on the pre-buried steel plates of the portal wall.
Compared with the prior art, the utility model has the beneficial technical effects of:
1. the utility model discloses a can monitor the atress change of portable reaction frame, warp and the displacement condition at portable reaction frame atress key position installation pointer formula percentage table, according to the quantitative reaction of the monitoring numerical value that acquires out portable reaction frame atress change, warp and the displacement condition, and then judge portable reaction frame atress size and the state of locating, ensure the safe in utilization of portable reaction frame.
2. The utility model discloses use pointer type percentage table, not only simple to operate, swift, with low costs, it is more nimble moreover, can select the mounted position as required.
3. The utility model discloses an at portable reaction frame and between the platform installation percentage table of starting leading, can not only monitor reaction frame support body and receive 0 ring canal piece thrust condition, the ration reflects portable reaction frame atress change curve moreover, judges when reaching atress zero point, and then confirms the section end time of starting, guides, confirms the demolish time of portable reaction frame.
Drawings
Fig. 1 is a schematic diagram of installation of a pointer type dial indicator.
Fig. 2 is a cross-sectional view a-a of fig. 1.
Fig. 3 is a schematic view of the installation of the first percentile table.
Fig. 4 is a schematic view of the installation of a second dial indicator.
Fig. 5 is an installation schematic diagram of a third dial indicator.
Number in the figure: 1. the hydraulic support comprises a steel support, 2 a side support, 3 a conical head support, 4 a stepping oil cylinder base, 5 a reaction frame, 6 an adjusting screw, 7 a steel ring support, 8 a steel ring, 9 an oil cylinder base, 10 an assembling supporting leg, 11 a bolt, 12 a hydraulic system, 13 a pin, 14 a pump station platform, 15 a hole door wall embedded steel plate, 16 a pointer type dial indicator, 17 a starting guide platform.
Detailed Description
The following embodiments are only intended to illustrate the present invention in detail, and do not limit the scope of the present invention in any way.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present application. References to "first," "second," etc. in this application are intended to distinguish between similar items and not necessarily to describe a particular order or sequence.
Example 1: a shield split starting movable reaction frame monitoring device is shown in figures 1 to 5 and comprises a pointer type dial indicator 16, a reaction frame 5, a starting guide platform 17 and a tunnel portal wall embedded steel plate 15, wherein the pointer type dial indicator 16 is a wide-range high-precision dial indicator and can accurately monitor deformation between structures. Reaction frame 5 comprises support body, anterior preceding steel ring, the steel shotcrete 1 triplex at rear portion, and it is fixed by side bearer 2 between the steel shotcrete 1, passes through bolt 11 fixed step-by-step hydro-cylinder seat 4 at the front end of steel shotcrete 1, utilizes hydraulic system 12 to provide drive power for reaction frame 5 forward movement, sets up adjusting screw 6 between reaction frame 5 and tunnel, guarantees that reaction frame 5 is perpendicular. And a pump station platform 14 is arranged on the reaction frame 5 through a pin 13 to control the hydraulic system 12. Anterior preceding steel ring is through the steel shotcrete 1 cantilever of the interior steel ring welding round on the support body 5 in the shield tail, and 1 one end of steel shotcrete at rear portion supports 3 tops on the support body of reaction frame 5 through the conical head, and the other end welding is on the pre-buried steel sheet 15 of portal wall. The pre-buried steel plate 15 of the portal wall is 2cm thick, 80cm is multiplied by 80cm in size, and is pre-buried on the portal wall. The starting guide platform 17 is positioned below the movable reaction frame 5, 4 steel rails are arranged at the upper part, and the frame body of the reaction frame 5 is clamped on the steel rails and can slide on the steel rails.
The range of the pointer type dial indicator is 0-20 mm, and the precision is 0.01 mm. The probe is a high-hardness steel probe, and is wear-resistant, durable and corrosion-resistant. The pointer type dial indicator can accurately monitor the deformation condition between structures.
The movable reaction frame 5 is frame-shaped, a steel ring is arranged in the frame, telescopic steel ring supports 7 are arranged on the left side and the right side of the lower portion of the inner steel ring and serve as cross braces between the reaction frame 5 and the shield tunneling machine, and the steel ring supports 7 are ejected by an oil cylinder and then clamped on a starting guide table and supported by assembly supporting legs 10. Preceding steel ring is through along the inside steel ring welding round of steel shotcrete 1 cantilever of reaction frame 5 support body in the shield tail, and 1 one end of steel shotcrete at rear portion supports the top on reaction frame 5 through the bulb, and the other end welding is on the pre-buried steel sheet of portal wall. The tail of the shield machine and the position corresponding to the steel ring support 7 are fixed with the steel ring 8, and the connecting oil cylinder seat 9 provides power for the shield machine.
9 anchoring steel bars with the diameter of 20 are welded on the pre-buried steel plate 15 of the door wall. The door wall is a reinforced concrete wall, and the outer vertical surface is vertical to the axis of the tunnel body. The surface of the pre-buried steel plate is flush with the side surface of the portal wall and is vertical to the axis of the steel support 1.
The starting guide platform 17 is integrally U-shaped, 2 guide rails are arranged at the bottom, 1 guide rail is respectively arranged on the top surfaces of the protruding parts on the two sides, and the bottom of the frame body of the reaction frame 5 is clamped on the 4 guide rails. The guide rail is required to be horizontal, the surface is smooth, and butter is coated to ensure that the frame body of the reaction frame 5 can smoothly slide on the guide rail.
In the embodiment, the outer diameter of the shield interval lining segment is 8.3m, the inner diameter is 7.5m, the ring width is 1.6m, and the thickness is 400 mm. Each ring consists of 7 pipe pieces, wherein 4 standard blocks, 2 connecting blocks and 1F block are arranged. The lining ring is a universal ring, and the double-faced wedge amount is 46 mm. The shield machine adopts a dial indicator to monitor the use of the shield split starting movable reaction frame 5 in the split starting tunneling stage.
The concrete construction process flow and the construction key points are as follows:
(1) manufacturing and installing of pre-buried steel plate of tunnel portal wall
A steel plate with the thickness of 20mm is purchased, and a machining worker draws lines on the steel plate by using a pencil according to a design drawing of the pre-buried steel plate and cuts the steel plate according to the drawn lines by using gas cutting. The cut embedded steel plate is 80cm long and 80cm wide. 9 small holes are cut in the embedded steel plate, and the embedded steel plate is provided with 3 rows in the length direction and 3 rows in the width direction. The hole interval is 300mm in length direction, and outside hole apart from steel sheet edge 100mm, and the hole interval is 300mm in width direction, and outside hole apart from steel sheet edge 100 mm. The steel bar with the length of 0.8m phi 20 penetrates through the small hole and is welded with the steel plate. After the construction of the reinforcing steel bars of the portal wall is finished, the position of the embedded steel plate is released by the measuring group, and the embedded steel plate is welded in place by an electric welder. The surface of the embedded steel plate is flush with the side surface of the portal wall, and the embedded steel plate is poured into a whole along with the portal wall.
(2) Originating console assembly
The originating guide commissions the outside process and completes the assembly in the originating well. The whole originating guide platform is U-shaped, 2 guide rails are arranged at the bottom, 1 guide rail is respectively arranged on the top surfaces of the protrusions on the two sides, and the bottom of the frame body of the reaction frame 5 is clamped on the 4 guide rails. The 4 guide rails are welded by an electric welder according to the point positions set by the measuring group, and the welding line is fully welded. The welded guide rail is required to be horizontal, the surface of the guide rail is polished smooth, and butter is coated to ensure that the frame body of the reaction frame 5 can smoothly slide on the guide rail.
(3) Movable reaction frame assembly
The movable reaction frame is subjected to outsourcing processing and assembled in the originating work well. The installation sequence is as follows: the vertical support and the horizontal support are installed. Secondly, the reaction frame 5 and the steel ring bottom block are hung in place and connected by the steel support 1. Thirdly, the reaction frame 5 is sequentially lifted and connected with the left block, the right block and the top block of the steel ring by the steel support 1. And fourthly, installing an anti-tilting horizontal support at the bottom of the reaction frame 5. Installing a conical head support 3. Sixthly, installing an anti-floating, stepping and wedge oil cylinder. And seventhly, stepping the steel ring to the inner part of the shield tail, adjusting the gap between the steel ring and the shield tail, and dismantling the anti-toppling support. Exchanging the steel support 1 with the diameter of 1.6m with the steel support 1 with the diameter of 3.2m, and continuing to step to the position of the tail shield shoe.
(4) Pointer type dial indicator
The dial indicators are installed at three positions, after an originating guide platform and a movable reaction frame are installed, the pointer type dial indicators are installed between a steel support 1 of the movable reaction frame and a tunnel door wall embedded steel plate, between a telescopic cross brace at the bottom of the movable reaction frame and the originating guide platform, between the movable reaction frame and the originating guide platform and between the movable reaction frame and the originating guide platform before the movable reaction frame is subjected to shield originating tunneling thrust, after 0 ring of pipe sheets are assembled and pushed to a reaction frame 5, between the movable reaction frame and the originating guide platform before the movable reaction frame is subjected to 0 ring of thrust, and the reading of the dial indicators is read in the using process of the movable reaction frame, and the recording and the analysis are well performed.
While the present invention has been described in detail with reference to the drawings and examples, it will be understood by those skilled in the art that various changes in the specific parameters of the embodiments described above may be made or equivalents may be substituted for elements, structures and materials without departing from the spirit of the invention to form various specific embodiments, which are intended to be within the scope of the invention and not be described in detail herein.
Claims (7)
1. The utility model provides a shield constructs components of a whole that can function independently and starts portable reaction frame monitoring devices which characterized in that: including first percentage table, portable reaction frame, originating guide platform, the pre-buried steel sheet of portal wall, portable reaction frame includes support body, steel ring, stull, steel shotcrete, the support body with originating guide platform sliding connection, the steel ring is fixed in the shield and constructs the tail portion, the steel ring with the support body passes through stull fixed connection, the support body with the pre-buried steel sheet of portal wall passes through steel shotcrete fixed connection, first percentage table set up in the steel shotcrete with between the pre-buried steel sheet of portal wall.
2. The shield split starting mobile reaction frame monitoring device according to claim 1, characterized in that: the first dial indicator comprises a magnetic seat, a dial plate and a probe needle, the magnetic seat is fixed on the pre-buried steel plate of the hole door wall, the probe needle is arranged on the dial plate and is in contact with the steel support, and the dial plate is fixed on the magnetic seat through a connecting rod.
3. The shield split starting mobile reaction frame monitoring device according to claim 1, characterized in that: and a second dial indicator is arranged between the cross brace and the originating guide table, and a probe of the second dial indicator is vertical to the originating guide table.
4. The shield split starting mobile reaction frame monitoring device according to claim 1, characterized in that: and a third dial indicator is arranged between the frame body and the originating guide platform, and a probe of the third dial indicator is parallel to the originating guide platform.
5. The shield split starting mobile reaction frame monitoring device according to claim 1, characterized in that: the starting guide platform is arranged below the movable reaction frame, 4 steel rails are arranged on the starting guide platform, and a frame body of the reaction frame is clamped on the steel rails and can slide on the steel rails.
6. The shield split starting mobile reaction frame monitoring device according to claim 1, characterized in that: the frame body of portable reaction frame is the frame type, the stull joint is in on the platform is led to the originated.
7. The shield split starting mobile reaction frame monitoring device according to claim 1, characterized in that: and the pre-buried steel plate of the door wall is welded with an anchoring steel bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120681909.3U CN214836354U (en) | 2021-04-02 | 2021-04-02 | Shield split starting mobile reaction frame monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120681909.3U CN214836354U (en) | 2021-04-02 | 2021-04-02 | Shield split starting mobile reaction frame monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214836354U true CN214836354U (en) | 2021-11-23 |
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ID=78761700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120681909.3U Active CN214836354U (en) | 2021-04-02 | 2021-04-02 | Shield split starting mobile reaction frame monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214836354U (en) |
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2021
- 2021-04-02 CN CN202120681909.3U patent/CN214836354U/en active Active
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