CN213235088U - Connecting device of soft rock deformation tunnel steel arch frame - Google Patents
Connecting device of soft rock deformation tunnel steel arch frame Download PDFInfo
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- CN213235088U CN213235088U CN202021158011.XU CN202021158011U CN213235088U CN 213235088 U CN213235088 U CN 213235088U CN 202021158011 U CN202021158011 U CN 202021158011U CN 213235088 U CN213235088 U CN 213235088U
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- steel
- steel arch
- bow member
- soft rock
- arch
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 172
- 239000010959 steel Substances 0.000 title claims abstract description 172
- 239000011435 rock Substances 0.000 title claims abstract description 22
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 230000002787 reinforcement Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims 2
- 238000000429 assembly Methods 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 12
- 210000003205 muscle Anatomy 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 6
- 101150097977 arch-1 gene Proteins 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a soft rock warp tunnel steel bow member's connecting device, including many pin steel bow member, many longitudinal connection muscle and coupling assembling, many pins all set up the connecting hole of a plurality of symmetric distributions on the steel bow member, many longitudinal connection muscle is worn to locate many pins between the steel bow member and is passed through coupling assembling connects and constitutes the steel bow member unit. The connecting device can effectively improve the torsional rigidity of the steel arch frame, and meanwhile, the longitudinal connection of a plurality of groups of steel arch frames is realized by longitudinally arranging the connecting sleeve, so that the overall longitudinal stability of the steel arch frame is greatly improved, the risk of instability and deformation of the steel arch frame is reduced, and the field construction difficulty is greatly simplified.
Description
Technical Field
The utility model relates to a tunnel underground works excavates the field, concretely relates to soft rock warp connecting device of tunnel steel bow member.
Background
At present, with the continuous promotion of the construction of the traffic infrastructure in China, the large deformation of soft rock is a great technical problem in the construction process of the tunnel and underground engineering at present, and more large deformation problems of soft rock are frequently encountered in the construction process of roads and railways. In a large deformation tunnel, due to overlarge deformation of surrounding rocks, the primary support is often damaged, particularly the steel arch is damaged, and the primary support is mainly characterized by the distortion deformation of the steel arch. The field practice shows that the steel arch in the large deformation tunnel is damaged mainly because the torsional rigidity and the longitudinal stability of the steel arch are not enough, so that the torsional rigidity and the longitudinal stability of the steel arch are ensured, and the method has important significance for ensuring the integrity of the steel arch of the large deformation tunnel.
At present, steel bars are welded between steel arch frames in engineering as an important means for ensuring the longitudinal stability of the steel arch frames. For example, chinese patent application No. CN201310563096.8 discloses a longitudinal connection device for tunnel steel arch centering, which improves the longitudinal integrity by welding horizontal and oblique connection ribs. In the prior art, longitudinal connection of the steel arch is realized by welding longitudinal and oblique connecting ribs, the problem of insufficient longitudinal stability of the steel arch can be solved to a certain extent by the connection mode, but the problem of insufficient torsional rigidity cannot be solved, so that the problem of distortion of the steel arch cannot be solved well. Meanwhile, the existing connecting technology can only realize the connection of adjacent steel arches, and cannot realize the longitudinal connection of a plurality of steel arches, so that the improvement degree of the longitudinal stability is limited. In the prior art, a welding connection mode is often adopted, the influence of an operation space and an operation environment is often caused during field construction, great difficulty is brought to construction, and the welding quality is difficult to guarantee.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a connecting device of soft rock deformation tunnel steel bow member can strengthen steel bow member longitudinal stability and torsional rigidity to solve the technical problem who mentions in the background art.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a connecting device of soft rock tunnel steel bow member, includes many pin steel bow members, many longitudinal connecting muscle and coupling assembling, many pin all seted up a plurality of symmetric distribution's connecting hole on the steel bow member, many longitudinal connecting muscle is worn to locate many pin between the steel bow member and is passed through coupling assembling connects and constitutes the steel bow member unit.
Further, the steel bow member is the I shape bow member, the steel bow member includes first horizontal steel sheet, connecting steel plate and the horizontal steel sheet of second, first horizontal steel sheet with the horizontal steel sheet parallel arrangement of second, connecting steel plate's first end with first horizontal steel sheet is connected, connecting steel plate's second end with the horizontal steel sheet of second is connected.
Further, the lengths of the first transverse steel plate, the connecting steel plate and the second transverse steel plate are equal.
Furthermore, a plurality of the connecting holes are formed in the connecting steel plate.
Further, the number of the connecting holes is 6, and the 6 connecting holes are divided into 3 groups which are respectively parallel and evenly distributed between the two ends of the connecting steel plate.
Further, longitudinal tie bar is the connecting reinforcement, the first end and the second end of connecting reinforcement all are equipped with the external screw thread.
Further, coupling assembling includes steel adapter sleeve, adapter sleeve be equipped with the external screw thread fit internal thread of connecting reinforcement.
Furthermore, the number of the steel arches is four, the four steel arches form a steel arch unit, the interval between the adjacent steel arches is 50cm, and the length of the longitudinal connecting rib is greater than that of the steel arch unit.
The utility model has the advantages that:
the utility model discloses a connecting device of soft rock deformation tunnel steel bow member, its many pin connect through between the steel bow member constitute the steel bow member unit, compare the current mode through welding horizontal and oblique connecting rib, not only greatly improved the whole longitudinal stability of steel bow member, reduced the risk of single pin steel bow member unstability deformation, be favorable to controlling soft rock large deformation, also greatly simplified the site operation degree of difficulty simultaneously; the steel arch frame is provided with a plurality of symmetrically distributed connecting holes for longitudinal connecting ribs to pass through and connected with each steel arch frame through the connecting component, and compared with the prior art, the mode can effectively improve the torsional rigidity of the steel arch frame; the connecting assembly and the longitudinal connecting ribs are installed in a threaded fit mode, construction is simple and rapid, and construction efficiency is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the soft rock deformed tunnel steel arch of the utility model;
FIG. 2 is a schematic structural view of a steel arch unit according to the present invention;
FIG. 3 is a schematic view of the installation structure of the steel arch and the longitudinal connecting rib of the present invention;
fig. 4 is a schematic structural view of the connecting assembly and the longitudinal connecting rib of the present invention;
in the figure, 1-steel arch, 101-first transverse steel plate, 102-connecting steel plate, 103-second transverse steel plate, 2-longitudinal connecting rib, 201-external thread, 3-connecting component, 301-steel connecting sleeve, 302-internal thread and 4-connecting hole.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-4, the present invention provides a technical solution:
referring to fig. 1-2, a connecting device for steel arches of a soft rock deformation tunnel includes a plurality of steel arches 1, a plurality of longitudinal connecting ribs 2 and a connecting assembly 3, wherein the plurality of steel arches 1 are respectively provided with a plurality of connecting holes 4 which are symmetrically distributed, and the plurality of longitudinal connecting ribs 2 are arranged between the plurality of steel arches 1 in a penetrating manner and connected through the connecting assembly 3 to form a steel arch unit.
In the utility model, the steel arch frames 1 are connected through the connecting component 3 to form a steel arch frame unit, and compared with the mode of welding horizontal and oblique connecting ribs, the longitudinal stability of the whole steel arch frame 1 is greatly improved, the risk of instability and deformation of the single steel arch frame 1 is reduced, the large deformation of soft rock is favorably controlled, and the difficulty of site construction is greatly simplified; a plurality of symmetrically distributed connecting holes 4 are formed in the steel arch 1 and used for allowing the longitudinal connecting ribs 2 to penetrate through and connecting the steel arch 1 through the connecting component 3, and compared with the prior art, the mode can effectively improve the torsional rigidity of the steel arch 1.
Referring to fig. 3, the steel arch 1 is an i-shaped arch, the steel arch 1 includes a first transverse steel plate 101, a connecting steel plate 102 and a second transverse steel plate 103, the first transverse steel plate 101 and the second transverse steel plate 103 are arranged in parallel, a first end of the connecting steel plate 102 is connected to the first transverse steel plate 101, and a second end of the connecting steel plate 102 is connected to the second transverse steel plate 103.
The utility model discloses first horizontal steel sheet 101, steel linkage 102 and the horizontal steel sheet 103 of second adopt interconnect's mode, and the overall structure's of multiplicable steel bow member 1 stability is convenient for install the connection installation of longitudinal tie muscle 2 and coupling assembling 3 moreover.
Referring to fig. 3, the first transverse steel plate 101, the connecting steel plate 102 and the second transverse steel plate 103 have the same length.
The utility model discloses a three component part of I-shaped steel bow member, first horizontal steel sheet 101, steel connection plate 102 and the horizontal steel sheet 103's of second length equals promptly, can guarantee the stability when connecting the installation between each pin I-shaped steel bow member, and steel connection plate 102 can strengthen the intensity of single pin I-shaped steel bow member itself.
Referring to fig. 3, a plurality of connection holes 4 are opened in the connection steel plate 102.
The utility model discloses an inside and outside bilateral symmetry of I-steel pterygoid lamina is hugged closely to a plurality of connecting holes 4 to longitudinal tie muscle 2 and coupling assembling 3's connection, and then realize many pin connection between the steel bow member 1 to improve the torsional rigidity of steel bow member 1.
Referring to fig. 3, the number of the connection holes 4 is 6, and the 6 connection holes 4 are divided into 3 groups and are respectively and uniformly distributed between two ends of the connection steel plate 102.
The utility model discloses the quantity of connecting hole 4 can be 6 to divide into three groups, first group distributes at the first end of binding steel plate 102, and second group distributes at the second end of binding steel plate 102, and third group distributes at the middle part of binding steel plate 102, adopts the mode of symmetry parallel to distribute, is favorable to improving many pin the stability of connecting between the steel bow member 1 and the torsional rigidity who improves steel bow member 1.
Referring to fig. 4, the longitudinal connecting bar 2 is a connecting bar, and the first end and the second end of the connecting bar are both provided with external threads 201.
Referring to fig. 4, the connection assembly 3 includes a steel connection sleeve 301, and the connection sleeve is provided with an internal thread 302 matching with the external thread 201 of the connection steel bar.
The utility model adopts the installation mode of screw thread fit between the connecting component 3 and the longitudinal connecting bar 2, the construction is simple and rapid, and the construction efficiency is improved; the length of the longitudinal connecting rib 2 can be determined according to the footage of each excavation and the distance between the steel arches 1, and various sizes can be selected, so that the longitudinal connecting rib can penetrate through all the steel arches 1 erected in each cycle.
Preferably, the number of the steel arches 1 is four, the four steel arches 1 form a steel arch unit, the interval between the adjacent steel arches 1 is 50cm, and the length of the longitudinal connecting rib 2 is greater than that of the steel arch unit.
The utility model discloses a quantity of single pin steel bow member 1 among the steel bow member unit can be four, and is adjacent interval between the steel bow member 1 is preferred 50 centimetres, and quantity and interval can have multiple choice according to the construction demand. When the steel arch support is used, the steel arch supports 1 are installed firstly, if 2m is excavated every time and the distance between the steel arch supports 1 is 50cm, 4 steel arch supports 1 are installed in each cycle, after the steel arch supports 1 are installed, the longitudinal connecting ribs 2 are installed in sequence through the connecting holes 4, the length of each connecting rib is 2.1m, the rear ends of the connecting ribs are provided with connecting sleeves, and the connecting sleeves are connected with the connecting ribs in the previous cycle until the steel arch supports 1 are connected.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (8)
1. The utility model provides a connecting device of soft rock deformation tunnel steel bow member which characterized in that: the steel arch comprises a plurality of steel arches (1), a plurality of longitudinal connecting ribs (2) and connecting assemblies (3), wherein the steel arches (1) are provided with a plurality of connecting holes (4) which are symmetrically distributed, and the longitudinal connecting ribs (2) penetrate through the steel arches (1) and are connected through the connecting assemblies (3) to form steel arch (1) units.
2. The soft rock deformation tunnel steel arch connecting device of claim 1, wherein: steel bow member (1) is the I shape bow member, steel bow member (1) includes first horizontal steel sheet (101), binding steel sheet (102) and the horizontal steel sheet of second (103), first horizontal steel sheet (101) with the horizontal steel sheet of second (103) parallel arrangement, binding steel sheet (102) first end with first horizontal steel sheet (101) are connected, binding steel sheet (102) the second end with the horizontal steel sheet of second (103) are connected.
3. The soft rock deformation tunnel steel arch connecting device of claim 2, wherein: the lengths of the first transverse steel plate (101), the connecting steel plate (102) and the second transverse steel plate (103) are equal.
4. The soft rock deformation tunnel steel arch connecting device of claim 2, wherein: the plurality of connecting holes (4) are formed in the connecting steel plate (102).
5. The soft rock deformation tunnel steel arch connecting device of claim 4, wherein: the number of the connecting holes (4) is 6, and the 6 connecting holes (4) are divided into 3 groups which are respectively parallel and evenly distributed between two ends of the connecting steel plate (102).
6. The soft rock deformation tunnel steel arch connecting device of claim 1, wherein: longitudinal direction splice bar (2) are the splice bar, the first end and the second end of splice bar all are equipped with external screw thread (201).
7. The soft rock deformation tunnel steel arch connecting device of claim 6, wherein: coupling assembling (3) include steel adapter sleeve (301), adapter sleeve be equipped with external screw thread (201) cooperation internal thread (302) of connecting reinforcement.
8. The soft rock deformation tunnel steel arch connecting device of claim 1, wherein: the number of the steel arch frames (1) is four, the four steel arch frames (1) form a steel arch frame (1) unit, the interval between the adjacent steel arch frames (1) is 50cm, and the length of the longitudinal connecting rib (2) is greater than that of the steel arch frame (1) unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021158011.XU CN213235088U (en) | 2020-06-19 | 2020-06-19 | Connecting device of soft rock deformation tunnel steel arch frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021158011.XU CN213235088U (en) | 2020-06-19 | 2020-06-19 | Connecting device of soft rock deformation tunnel steel arch frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213235088U true CN213235088U (en) | 2021-05-18 |
Family
ID=75885429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021158011.XU Expired - Fee Related CN213235088U (en) | 2020-06-19 | 2020-06-19 | Connecting device of soft rock deformation tunnel steel arch frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213235088U (en) |
-
2020
- 2020-06-19 CN CN202021158011.XU patent/CN213235088U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210518 |