CN114320378A - Broken belt supporting tunnel top-lifting rapid construction device and method - Google Patents
Broken belt supporting tunnel top-lifting rapid construction device and method Download PDFInfo
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- CN114320378A CN114320378A CN202111544699.4A CN202111544699A CN114320378A CN 114320378 A CN114320378 A CN 114320378A CN 202111544699 A CN202111544699 A CN 202111544699A CN 114320378 A CN114320378 A CN 114320378A
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 56
- 238000010276 construction Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000000875 corresponding effect Effects 0.000 description 6
- 230000003139 buffering effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention relates to the technical field of supporting hole and top raising construction, in particular to a device and a method for quickly constructing a broken belt supporting hole and top raising, wherein the device comprises a main hole arch frame, a supporting hole arch frame and a hyperbolic arch frame which are arranged at the intersection of a supporting hole and a main hole; the branch arch center comprises an arch foot and an arch beam, and a support column is arranged on the side wall of the arch foot along the circumferential direction; two ends of the hyperbolic arch are respectively connected with corresponding supporting columns, and the supporting columns are used for supporting the hyperbolic arch; an auxiliary mechanism is also arranged between the branch tunnel arch frame and the hyperbolic arch frame; the number of the arch centering of the main tunnel is multiple, and an arch foot at one end of the arch centering of the main tunnel, which is close to the branch tunnel, is connected with the hyperbolic arch centering; the method is realized based on the device. The invention can better realize the rapid construction of the supporting hole and the top.
Description
Technical Field
The invention relates to the technical field of supporting hole and top raising construction, in particular to a device and a method for quickly constructing a broken belt supporting hole and top raising.
Background
The branch tunnel-to-main tunnel top raising is widely applied to building engineering such as railway tunnels and the like due to the characteristics of strong adaptability, high bearing capacity, simple and convenient construction and the like.
In the prior art, a main arch, a branch arch and a hyperbolic arch are connected to support; because the hyperbolic arch is directly welded on the branch tunnel arch in an oblique angle usually, when the pressure on the hyperbolic arch is higher or the worker is not completely welded, the welding part of the hyperbolic arch and the branch tunnel arch is unstable, and the hyperbolic arch is supported at a certain risk while the hyperbolic arch cannot be well supported.
Disclosure of Invention
Aiming at the defects of unstable connection and poor supporting effect between a hyperbolic arch center and a supporting arch center in the prior art, the invention provides a broken belt supporting and jacking quick construction device. It can be connected hyperbolic bow member and branch tunnel bow member better, improves hyperbolic bow member ground stability, improves the support effect.
In order to solve the above technical problems, the present invention is solved by the following technical solutions.
The crushing zone branch tunnel top-lifting rapid construction device comprises a main tunnel arch frame, a branch tunnel arch frame and a hyperbolic arch frame which are arranged at the intersection of a branch tunnel and a main tunnel; the main arch, the branch arch and the double-curved arch are tightly connected into a whole;
the branch arch comprises an arch foot and an arch beam connected with the arch foot, and a supporting column is arranged on the side wall of the arch foot along the circumferential direction; two ends of the hyperbolic arch are respectively connected with corresponding supporting columns, and the supporting columns are used for supporting the hyperbolic arch; an auxiliary mechanism is also arranged between the branch tunnel arch frame and the hyperbolic arch frame;
the number of the front arch is multiple, and an arch foot at one end of the front arch, which is close to the branch tunnel, is connected with the hyperbolic arch.
Through the arrangement of the supporting columns, on one hand, the hyperbolic arch is fixed on the supporting columns, so that the acting force of the hyperbolic arch directly acts on the supporting columns, and the hyperbolic arch can be better supported; on the other hand, because the end surfaces of the hyperbolic arch center and the supporting columns are in direct contact, the contact surface is increased, and the supporting strength of the hyperbolic arch center can be effectively improved.
Preferably, the end face of the support column, which is in contact with the hyperbolic arch, is inwards recessed to form a connecting hole, and a connecting column which can extend into the connecting hole is arranged at the position of the hyperbolic arch, which corresponds to the connecting hole; the connecting column is used for being in clamping fit with the connecting hole so as to fix the lower part of the hyperbolic arch on the supporting column.
According to the invention, through the arrangement of the connecting holes and the connecting columns, when the double-curved arch frame is used, the connecting columns are directly inserted into the connecting holes, so that the double-curved arch frame and the supporting columns can be connected, and the operation is convenient and fast; and through mutual extrusion between the hole wall of the connecting hole and the connecting column, the lower part of the hyperbolic arch frame is fixed on the supporting column, meanwhile, the connection stability between the hyperbolic arch frame and the supporting column can be better improved, and the stability and the strength of the support of the hyperbolic arch frame can be effectively improved.
Preferably, the auxiliary mechanism comprises a first mounting groove formed by inwards recessing the end surface of the arched beam close to the hyperbolic arch centering, and a second mounting groove is formed in the position of the hyperbolic arch centering corresponding to the first mounting groove; a fixing rod is arranged between the double-curved arch frame and the arched beam, one end of the fixing rod extends into the first mounting groove, the other end of the fixing rod extends into the second mounting groove, and the fixing rod is used for connecting the double-curved arch frame and the arched beam so as to fix the upper portion of the double-curved arch frame and the arched beam.
According to the invention, the fixing between the upper part of the double-curved arch and the arched girder can be better realized through the arrangement of the fixing rod, and after the upper part and the lower part of the double-curved arch are respectively fixed, the stability of fixing the double-curved arch can be better improved, so that the strength of supporting the double-curved arch is further improved, and the safe construction is ensured.
Preferably, the fixing rod includes a first connecting rod and a second connecting rod; one end of the first connecting rod extends into the first mounting groove, and the other end face of the first connecting rod is recessed inwards to form a first channel; a second connecting rod is movably arranged in the first road, one end of the second connecting rod is positioned in the first road, and the other end of the second connecting rod extends into the second mounting groove; an elastic piece is arranged between one end of the second connecting rod and the inner end of the first runner and used for keeping the trend that the second connecting rod moves towards the inside of the first runner.
Preferably, the elastic member is a spring.
According to the invention, through the arrangement of the first connecting rod, the second connecting rod and the elastic piece, when the hyperbolic arch is under pressure, the first connecting rod is firstly pulled, so that the elastic piece can be stretched under the combined action of the first connecting rod and the second connecting rod, and a buffering effect is achieved to a certain extent, so that the hyperbolic arch can be buffered under the action of the spring when suddenly under pressure, the impact force is slowly decomposed, and the damage to the hyperbolic arch is avoided; and through this kind of cushioning effect, can improve the function of strut ground betterly, further improve the security.
Preferably, a first limiting ring extends inwards from the outer port of the first road; one end of the second connecting rod is provided with a second limiting ring matched with the first limiting ring, and the second limiting ring is used for extruding with the first limiting ring to limit the stroke of the second connecting rod.
According to the invention, through the arrangement of the first limiting ring and the second limiting ring, the separation of the first connecting rod and the second connecting rod can be better avoided, and the safety can be better improved.
Preferably, one end of the first connecting rod is connected with the first mounting groove through a bolt; the other end of the second connecting rod is connected with the second mounting groove through a bolt.
Through the structure of the invention, the connection between the first connecting rod and the first mounting groove and the connection between the second connecting rod and the second mounting groove can be better realized.
In addition, the invention also provides a rapid construction method for the broken belt supporting hole top lifting, which adopts any one of the rapid construction devices for the broken belt supporting hole top lifting to carry out construction.
Drawings
FIG. 1 is a schematic view of a construction apparatus in example 1;
FIG. 2 is a schematic view of the arch of the branch tunnel according to embodiment 1;
FIG. 3 is a schematic view of the hyperbolic arch in embodiment 1;
FIG. 4 is a schematic view of a first connecting rod in embodiment 1;
fig. 5 is a schematic view of the second connecting rod and the elastic member in embodiment 1.
Fig. 6 is a flowchart of a method for performing a quick top-lifting construction with a broken tunnel in embodiment 1.
The names of the parts indicated by the numerical references in the drawings are as follows:
110. a main arch frame; 120. supporting a tunnel arch center; 121. an arch springing; 122. an arched beam; 130. a hyperbolic arch frame; 140. a support pillar; 150. fixing the rod; 151. a first connecting rod; 152. a second connecting rod; 210. connecting holes; 220. a first mounting groove; 310. connecting columns; 320. a second mounting groove; 410. a first lane; 420. a first limit ring; 510. a second stop collar; 520. an elastic member.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention and not limiting.
Example 1
As shown in fig. 1-5, the present embodiment provides a broken zone branch tunnel roof-lifting rapid construction device, which includes a main tunnel arch 110, a branch tunnel arch 120 and a hyperbolic arch 130, which are arranged at the intersection of a branch tunnel and a main tunnel; the main arch 110, the branch arch 120 and the hyperbolic arch 130 are tightly connected into a whole;
the branch arch 120 comprises an arch foot 121 and an arch beam 122 connected with the arch foot 121, and supporting columns 140 are arranged on the side wall of the arch foot 121 along the circumferential direction; two ends of the hyperbolic arch 130 are respectively connected with corresponding supporting columns 140, and the supporting columns 140 are used for supporting the hyperbolic arch 130; an auxiliary mechanism is also arranged between the branch arch 120 and the hyperbolic arch 130;
the number of the front arch 110 is multiple, and an arch foot at one end of the front arch 110 close to the branch tunnel is connected with the hyperbolic arch 130;
the end face of the support column 140 contacting with the hyperbolic arc frame 130 is recessed inwards to form a connecting hole 210, and a connecting column 310 which can extend into the connecting hole 210 is arranged at the position of the hyperbolic arc frame 130 corresponding to the connecting hole 210; the connecting column 310 is used for clamping and matching with the connecting hole 210 to realize the fixation of the lower part of the hyperbolic arch center 130 on the supporting column 140;
the auxiliary mechanism comprises a first mounting groove 220 formed by inwards recessing the end surface of the arched beam 122 close to the hyperbolic arch 130, and a second mounting groove 320 is arranged at the position of the hyperbolic arch 130 corresponding to the first mounting groove 220; a fixing rod 150 is arranged between the double curved arch 130 and the arched beam 122, one end of the fixing rod 150 extends into the first mounting groove 220, the other end extends into the second mounting groove 320, and the fixing rod 150 is used for connecting the double curved arch 130 and the arched beam 122 so as to fix the upper part of the double curved arch 130 and the arched beam 122.
In this embodiment, the hyperbolic arch 130 is fixed on the supporting column 140, so that the acting force of the hyperbolic arch 130 directly acts on the supporting column 140, and the hyperbolic arch 130 can be supported better; because the end surfaces of the hyperbolic arch 130 and the supporting columns 140 are in direct contact, the contact surface is increased, and the supporting strength of the hyperbolic arch 130 can be effectively improved;
through the arrangement of the connecting holes 210 and the connecting columns 310, when the hyperbolic arch 130 and the supporting columns 140 are connected, the connecting columns 310 are directly inserted into the connecting holes 210, and the operation is convenient and fast; by mutual extrusion between the hole wall of the connecting hole 210 and the connecting column 310, the lower part of the hyperbolic arch 130 is fixed on the supporting column 140, meanwhile, the stability of connection between the hyperbolic arch 130 and the supporting column 140 can be improved better, and the stability and strength of support of the hyperbolic arch 130 can be effectively improved;
by the arrangement of the fixing rod 150, the upper part of the double-curved arch 130 can be preferably fixed with the arched beam 122, and after the upper part and the lower part of the double-curved arch 130 are respectively fixed, the stability of fixing the double-curved arch 130 can be preferably improved, so that the supporting strength of the double-curved arch 130 is further improved, and the safe construction is ensured; the fixing rod 150, the hyperbolic arch 130 and the branch arch 120 form a supporting whole at the same time, so that a better supporting effect can be achieved; because the hyperbolic arc 130 is connected to the supporting column 140 in an angle, when the hyperbolic arc 130 is pressed, the fixing rod 150 can also play a role in pulling, so that the stability and strength of the support of the hyperbolic arc 130 can be better improved; through the combined action of the fixing rod 150 and the supporting column 140, the stability and the supporting strength of the hyperbolic arch center 130 can be greatly improved, and the safe and efficient construction is ensured.
In this embodiment, the fixing rod 150 includes a first connecting rod 151 and a second connecting rod 152; one end of the first connecting rod 151 extends into the first mounting groove 220, and the other end is recessed inwards to form a first channel 410; the second connecting rod 152 is movably arranged in the first runner 410, one end of the second connecting rod 152 is positioned in the first runner 410, and the other end extends into the second mounting groove 320; an elastic member 520 is arranged between one end of the second connecting rod 152 and the inner end of the first track 410, and the elastic member 520 is used for maintaining the tendency of the second connecting rod 152 to move towards the first track 410; the elastic member 520 is a spring; a first limiting ring 420 extends inwards from the outer port of the first road 410; a second limit ring 510 matched with the first limit ring 420 is arranged at one end of the second connecting rod 152, and the second limit ring 510 is used for extruding with the first limit ring 420 to limit the stroke of the second connecting rod 152; one end of the first connecting rod 151 is connected with the first mounting groove 220 through a bolt; the other end of the second connecting rod 152 is connected to the second mounting groove 320 by a bolt.
In this embodiment, through the arrangement of the first connecting rod 151, the second connecting rod 152 and the elastic element 520, when the hyperbolic arch 130 is under pressure, the first connecting rod 151 is pulled first, so that the elastic element 520 is stretched under the combined action of the first connecting rod 151 and the second connecting rod 152, and thus plays a role in buffering to a certain extent, so that the hyperbolic arch 130 is buffered under the action of a spring when suddenly under pressure, and thus the impact force is slowly dissolved, and the damage to the hyperbolic arch 130 is avoided; by the buffer action, the function of the support can be better improved, and the safety is further improved;
through the arrangement of the first and second position-limiting rings 420 and 510, the first and second connecting rods 151 and 152 can be prevented from being separated, and the safety can be improved.
Referring to fig. 6, based on the device for quickly constructing a broken roof with a branch hole in this embodiment, this embodiment further provides a method for quickly constructing a broken roof with a branch hole. The method specifically comprises the following steps:
step S1, branch tunnel construction;
step S2, construction of an intersection door frame;
and step S3, constructing the main hole.
In the above step S1, a branch hole can be formed by using the existing construction process;
in the step S2, an intersection on the path between the end of the branch tunnel and the main tunnel can be formed through the step S1, and then an intersection door frame is formed by using the crushing and supporting rapid construction device in the embodiment, so that the construction of the intersection door frame is completed.
After the step S2 is completed, the construction of the main hole can be completed by the existing construction process.
By the method in the embodiment, construction of the intersection door frame at the intersection between the branch hole and the main hole can be better realized, so that the method has corresponding effects.
However, when step S2 is performed, the following steps may be performed:
firstly, after the tunnel construction is completed, the installation of the tunnel arch 120 is completed;
then, the assembly between the hyperbolic arch 130 and the branch arch 120 is completed, and in this step, the assembly of the fixing rod 150 is completed;
then, the construction at the main tunnel is performed, thereby completing the assembly of the main tunnel arch 110.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.
Claims (8)
1. Broken area tunnel is chosen a top and is constructed device fast, its characterized in that: comprises a main tunnel arch (110), a branch tunnel arch (120) and a hyperbolic arch (130) which are arranged at the intersection of a branch tunnel and a main tunnel; the main arch (110), the branch arch (120) and the hyperbolic arch (130) are tightly connected into a whole;
the branch arch center (120) comprises an arch foot (121) and an arch beam (122) connected with the arch foot (121), and supporting columns (140) are arranged on the side wall of the arch foot (121) along the circumferential direction; two ends of the hyperbolic arch centering (130) are respectively connected with corresponding supporting columns (140), and the supporting columns (140) are used for supporting the hyperbolic arch centering (130); an auxiliary mechanism is also arranged between the branch tunnel arch frame (120) and the hyperbolic arch frame (130);
the number of the front arch centering (110) is multiple, and an arch foot at one end of the front arch centering (110) close to the branch tunnel is connected with the hyperbolic arch centering (130).
2. The broken belt branch tunnel top-lifting rapid construction device of claim 1, characterized in that: the end face of the support column (140) contacting with the hyperbolic arc frame (130) is inwards recessed to form a connecting hole (210), and a connecting column (310) which can extend into the connecting hole (210) is arranged at the position of the hyperbolic arc frame (130) corresponding to the connecting hole (210); the connecting column (310) is used for being in clamping fit with the connecting hole (210) so as to fix the lower part of the hyperbolic arch center (130) on the supporting column (140).
3. The broken belt branch tunnel top-lifting rapid construction device of claim 1, characterized in that: the auxiliary mechanism comprises an arch beam (122), a first mounting groove (220) is formed by inwards sinking the end face of the arch beam (122) close to the hyperbolic arch center (130), and a second mounting groove (320) is formed in the position of the hyperbolic arch center (130) corresponding to the first mounting groove (220); a fixing rod (150) is arranged between the double-curved arch frame (130) and the arched beam (122), one end of the fixing rod (150) extends into the first mounting groove (220), the other end of the fixing rod extends into the second mounting groove (320), and the fixing rod (150) is used for connecting the double-curved arch frame (130) and the arched beam (122) so as to fix the upper portion of the double-curved arch frame (130) and the arched beam (122).
4. The broken quick construction device of taking a tunnel to ram of claim 3, characterized by: the fixing rod (150) comprises a first connecting rod (151) and a second connecting rod (152); one end of the first connecting rod (151) extends into the first mounting groove (220), and the other end surface of the first connecting rod is inwards recessed to form a first channel (410); a second connecting rod (152) is movably arranged in the first channel (410), one end of the second connecting rod (152) is positioned in the first channel (410), and the other end of the second connecting rod extends into the second mounting groove (320); an elastic piece (520) is arranged between one end of the second connecting rod (152) and the inner end of the first moving channel (410), and the elastic piece (520) is used for keeping the tendency that the second connecting rod (152) moves towards the inside of the first moving channel (410).
5. The broken quick construction device of taking a tunnel to ram of claim 4, characterized by: the elastic member (520) is a spring.
6. The broken quick construction device of taking a tunnel to ram of claim 4, characterized by: a first limiting ring (420) extends inwards from the outer port of the first road (410); one end of the second connecting rod (152) is provided with a second limiting ring (510) matched with the first limiting ring (420), and the second limiting ring (510) is used for being extruded with the first limiting ring (420) to limit the stroke of the second connecting rod (152).
7. The broken quick construction device of taking a tunnel to ram of claim 4, characterized by: one end of the first connecting rod (151) is connected with the first mounting groove (220) through a bolt; the other end of the second connecting rod (152) is connected with the second mounting groove (320) through a bolt.
8. A method for rapidly constructing a broken belt branch tunnel top, which adopts the device for rapidly constructing a broken belt branch tunnel top as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111544699.4A CN114320378A (en) | 2021-12-16 | 2021-12-16 | Broken belt supporting tunnel top-lifting rapid construction device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111544699.4A CN114320378A (en) | 2021-12-16 | 2021-12-16 | Broken belt supporting tunnel top-lifting rapid construction device and method |
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| CN114320378A true CN114320378A (en) | 2022-04-12 |
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| CN202111544699.4A Pending CN114320378A (en) | 2021-12-16 | 2021-12-16 | Broken belt supporting tunnel top-lifting rapid construction device and method |
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Effective date of registration: 20231211 Address after: 230601 north of Fanhua Avenue West of Furong Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: THE THIRD CONSTRUCTION Co.,Ltd. Applicant after: CHINA RAILWAY DEVELOPMENT INVESTMENT GROUP Co.,Ltd. Applicant after: China Railway Tenth Group Co.,Ltd. Address before: 230601 north of Fanhua Avenue West of Furong Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant before: THE THIRD CONSTRUCTION Co.,Ltd. Applicant before: China Railway Tenth Group Co.,Ltd. |
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