CN212027790U - Reusable shield starting reaction frame - Google Patents
Reusable shield starting reaction frame Download PDFInfo
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- CN212027790U CN212027790U CN202020644395.XU CN202020644395U CN212027790U CN 212027790 U CN212027790 U CN 212027790U CN 202020644395 U CN202020644395 U CN 202020644395U CN 212027790 U CN212027790 U CN 212027790U
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Abstract
The utility model relates to a shield constructs construction technical field, concretely relates to repeatedly usable's shield constructs reaction frame of starting. The reaction frame is used for solving the problems that the service life of the existing reaction frame is short, serious potential safety hazards exist, and repeated installation, disassembly and repeated use are not facilitated. The shield well structure comprises a reaction frame main body, a pre-buried steel plate and a supporting steel pipe, wherein the pre-buried steel plate is arranged on the shield well structure, and the reaction frame main body is fixed with the pre-buried steel plate through the supporting steel pipe. The utility model discloses simple structure, intensity are high, convenient and practical, simple to operate, reaction frame main part all adopt high strength bolted connection, repeatedly usable, shield for city subway and develop and provide the safety guarantee.
Description
Technical Field
The utility model relates to a shield constructs construction technical field, and more specifically the utility model relates to a repeatedly usable's shield constructs reaction frame of starting that says so.
Background
The shield reaction frame is a steel member for providing propelling force and positioning duct pieces for the shield tunneling machine during starting, and generally consists of a portal frame and a plurality of support rod pieces. After the hoisting of the shield main machine is completed, the installation of the reaction frame is started before the shield main machine is connected with the rear support. The reaction frame structure is designed according to a vertical shaft structure, and the reaction frame provides the required reaction force when the shield tunneling machine is propelled, so that the reaction frame has enough rigidity and strength. The general reaction frame supporting steel pipe and the reaction frame door frame are welded and fixed, the reaction frame is short in service life, serious potential safety hazards exist, repeated installation and disassembly are not facilitated, repeated use is achieved, and economic burden is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a repeatedly usable's shield constructs reaction frame of starting to the not enough that exists to solve the problem that provides among the above-mentioned background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a repeatedly usable's shield constructs reaction frame of starting, includes reaction frame main part, pre-buried steel sheet and support steel pipe, pre-buried steel sheet sets up in shield well structure, reaction frame main part is fixed with pre-buried steel sheet through supporting the steel pipe.
Furthermore, the reaction frame main body is of a door type structure formed by connecting a left vertical beam, a right vertical beam, an upper cross beam and a lower cross beam through 10.9-grade M30 high-strength bolts, the left vertical beam, the right vertical beam, the upper cross beam and the lower cross beam are welded into H-shaped steel with stiffening ribs by adopting steel plates with the thickness of 40mm, and the section size of the H-shaped steel is 1000mm multiplied by 1000 mm.
Furthermore, the left vertical beam, the upper cross beam and the lower cross beam are connected with an oblique beam, the right vertical beam, the upper cross beam and the lower cross beam are connected with an oblique beam, the oblique beam is formed by connecting H-shaped steel with stiffening ribs with a reaction frame main body through 10.9-level M30 high-strength bolts, and the H-shaped steel is formed by welding two steel plates with the thickness of 40 mm.
Furthermore, the support steel pipe is Q345 and the cross-sectional dimension is about 600mm, and upper and lower crossbeam equidistance respectively sets up 2 straight support steel pipes, and right vertical beam sets up 5 straight support steel pipes, and left vertical beam sets up 2 bearing steel pipes and two straight support steel pipes.
Furthermore, one end of the supporting steel pipe is connected with the reaction frame main body through a 10.9-grade M22 high-strength bolt, the other end of the supporting steel pipe is connected with the embedded steel plate through a 10.9-grade M30 high-strength bolt, and the included angles between the inclined supporting steel pipe and the reaction frame are 36 degrees and 31 degrees respectively.
Compared with the prior art, the utility model has the following beneficial effect: the utility model discloses simple structure, intensity are high, convenient and practical, simple to operate, reaction frame main part all adopt high strength bolted connection, repeatedly usable, shield for city subway and develop and provide the safety guarantee.
Drawings
Fig. 1 is a front view of a reusable shield launching reaction frame of the present invention.
Fig. 2 is a side view of a reusable shield launching reaction frame of the present invention.
In the figure: 1-reaction frame main body, 2-embedded steel plate, 3-support steel pipe, 4-10.9 grade M30 high-strength bolt, 5-10.9 grade M22 high-strength bolt, 11-left vertical beam, 12-right vertical beam, 13-upper cross beam, 14-lower cross beam, 15-oblique beam, 31-straight support steel pipe and 32-oblique support steel pipe.
Detailed Description
In the following, the technical solutions in the embodiments of the present invention are clearly and completely described with reference to the drawings in the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without any creative work belong to the protection scope of the present invention.
A reusable shield starting reaction frame is shown in a figure 1 and a figure 2 and comprises a reaction frame main body, an embedded steel plate and a supporting steel pipe, wherein the reaction frame main body comprises an upper cross beam, a lower cross beam, a left vertical beam and a right vertical beam, the upper cross beam and the lower cross beam are connected through 10.9-grade M30 high-strength bolts to form a portal structure, the left vertical beam, the right vertical beam, the upper cross beam and the lower cross beam are welded into H-shaped steel with stiffening ribs by adopting steel plates with the thickness of 40mm, and the cross section of the H-shaped steel is 1000mm multiplied by 1000 mm.
The utility model discloses a horizontal beam, including the left side erect roof beam, the crossbeam is connected with the crossbeam, the crossbeam is installed to the left side, and the crossbeam is erected on the right side, and the crossbeam is installed to the crossbeam, crossbeam junction, and the crossbeam is erected on the right side, and the crossbeam is welded into the H shaped steel that the cross-sectional dimension is 1000mm by two 40mm thick steel sheets and is passed through 10.9 grades of M30 high-strength bolt and.
The supporting steel pipes are Q345 and the section size is about phi 600mm, 2 straight supporting steel pipes are respectively arranged on the upper cross beam and the lower cross beam at equal intervals, 5 straight supporting steel pipes are arranged on the right vertical beam, and two inclined supporting steel pipes and two straight supporting steel pipes are arranged on the left vertical beam.
One end of the supporting steel pipe is connected with the reaction frame main body through a 10.9-grade M22 high-strength bolt, the other end of the supporting steel pipe is connected with the embedded steel plate through a 10.9-grade M30 high-strength bolt, and the included angles between the inclined supporting steel pipe and the reaction frame are 36 degrees and 31 degrees respectively.
The utility model discloses a theory of operation is:
the center position is accurately found on an embedded steel plate arranged on a shield well structure, a cross mark is made, a left upright post is installed, the left upright post is conveyed to the position of the fixed embedded steel plate by a winch matched with a guide chain according to the site and space, the upper stress position of the left upright post is tied by the guide chain, the upper end of the upright post is uniformly lifted, meanwhile, the middle lower part of the upright post is well supported and protected, the upper end of the upright post is slightly deviated to the west side, so that the safety and the reliability of the upright post in the lifting process are ensured, after the upright post is righted, a scaffold is immediately erected to stabilize the upright post, then a jack is used for jacking the bottom of the upright post to move the left upright post to be in place to the cross line position of the embedded steel plate, the left upright post is in place and then is connected with the embedded steel plate by a high-strength bolt, and meanwhile, two inclined support steel pipes and two straight support steel pipes are installed, so that the stand column is stable and safe, and the scaffold is dismantled to install the lower cross beam of the reaction frame.
And moving the cross beam at the lower part of the reaction frame to the mounting position, pulling the cross beam to the position connected with the left upright post by using the guide chain, and then tightening the bolt to connect the lower cross beam and the left upright post into a whole.
After the lower cross beam is installed, the upper stress position of the right side upright post is bound by a guide chain, the right side upright post is positioned in the same way as the left side upright post, after being positioned in the right side upright post, the right side upright post is connected with the lower cross beam through bolts, and then is connected with the embedded steel plate through bolts, and 2 straight support steel pipes of the lower cross beam and 5 straight support steel pipes of the right vertical beam are connected;
after the right side upright post is installed, the lower oblique beam of the left side upright post is in place by using a guide chain, and is connected with the left side upright post and the lower cross beam by using bolts, and the lower oblique beam of the right side upright post is installed by the same method.
And installing the upper cross beam of the reaction frame by using bolts, positioning the upper oblique beam at the same time, installing the lower oblique beam by using the installation method, and installing 2 straight supporting steel pipes on the upper cross beam at equal intervals.
And integrally checking whether the bolts of the reaction frame are tightly supported or not and whether the back support of the reaction frame is stable or not, and then polishing the surface of the reaction frame by using a polishing machine to enable the surface to be flat.
The utility model discloses when using, adopt 10.9 level M30 high strength bolt to connect between the upper and lower crossbeam of reaction frame and left and right upright beam and the sloping, support the steel pipe and adopt 10.9 level M22 high strength bolt to connect with reaction frame main part and need not the welding, simple to operate dismantles the convenience, can use repeatedly, and convenient construction is safe, practices thrift the cost, has increased economic benefits.
The technical principle of the present invention has been described above with reference to specific embodiments, which are merely preferred embodiments of the present invention. The utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongings the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. Those skilled in the art will appreciate that other embodiments of the invention can be devised which do not require inventive effort and which fall within the scope of the present invention.
Claims (9)
1. The utility model provides a repeatedly usable's shield constructs initial reaction frame, its characterized in that, includes reaction frame main part (1), pre-buried steel sheet (2) and support steel pipe (3), pre-buried steel sheet (2) set up in shield well structural, reaction frame main part (1) is fixed through supporting steel pipe (3) and pre-buried steel sheet (2).
2. The reusable shield initial reaction frame according to claim 1, characterized in that the reaction frame body (1) is a portal structure formed by connecting a left vertical beam (11), a right vertical beam (12), an upper beam (13) and a lower beam (14) through 10.9-grade M30 high-strength bolts (4).
3. The reusable shield initial reaction frame according to claim 2, wherein the left vertical beam (11), the right vertical beam (12), the upper cross beam (13) and the lower cross beam (14) are all welded into an H-shaped steel with stiffening ribs by adopting steel plates with the thickness of 40mm, and the cross-sectional dimension of the H-shaped steel is 1000mm x 1000 mm.
4. The reusable shield initial reaction frame according to claim 2, wherein the left vertical beam (11) and the upper beam (13) and the lower beam (14) are connected by an oblique beam (15), and the right vertical beam (12) and the upper beam (13) and the lower beam (14) are connected by an oblique beam (15).
5. A reusable shield initial reaction frame according to claim 4, characterized in that said oblique beams (15) are connected to the reaction frame body (1) by H-shaped steel with stiffening ribs welded by two steel plates 40mm thick through 10.9 grade M30 high strength bolts (4).
6. The reusable shield initial reaction frame according to claim 1, characterized in that said supporting steel tube (3) is a Q345 steel tube with a cross-sectional dimension of around 600mm, the supporting steel tube (3) comprises a straight supporting steel tube (31) and an oblique supporting steel tube (32).
7. The reusable shield initial reaction frame according to claim 6, characterized in that the upper cross beam (13) is provided with 2 straight supporting steel pipes (31) at equal intervals, the lower cross beam (14) is provided with 2 straight supporting steel pipes (31) at equal intervals, the right vertical beam (12) is provided with 5 straight supporting steel pipes (31), and the left vertical beam (11) is provided with two inclined supporting steel pipes (32) and two straight supporting steel pipes (31).
8. The reusable shield initial reaction frame as claimed in claim 7, wherein one end of the straight supporting steel tube (31) is connected to the reaction frame body (1) through 10.9 grade M22 high strength bolt (5), and the other end is connected to the embedded steel plate (2) through 10.9 grade M30 high strength bolt (4).
9. The reusable shield initial reaction frame as claimed in claim 8, wherein one end of the diagonal bracing steel tube (32) is connected with the reaction frame main body (1) through a 10.9-grade M22 high-strength bolt (5), the other end is connected with the embedded steel plate (2) through a 10.9-grade M30 high-strength bolt, and the included angles between the diagonal bracing steel tube and the reaction frame are 36 ° and 31 ° respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020644395.XU CN212027790U (en) | 2020-04-24 | 2020-04-24 | Reusable shield starting reaction frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020644395.XU CN212027790U (en) | 2020-04-24 | 2020-04-24 | Reusable shield starting reaction frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212027790U true CN212027790U (en) | 2020-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020644395.XU Active CN212027790U (en) | 2020-04-24 | 2020-04-24 | Reusable shield starting reaction frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212027790U (en) |
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2020
- 2020-04-24 CN CN202020644395.XU patent/CN212027790U/en active Active
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