CN206972266U - A kind of tunnel arch heavy in section junction steel plate structure with ribbing - Google Patents
A kind of tunnel arch heavy in section junction steel plate structure with ribbing Download PDFInfo
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- CN206972266U CN206972266U CN201720572809.0U CN201720572809U CN206972266U CN 206972266 U CN206972266 U CN 206972266U CN 201720572809 U CN201720572809 U CN 201720572809U CN 206972266 U CN206972266 U CN 206972266U
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- steel plate
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- section steel
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Abstract
A kind of tunnel arch heavy in section junction steel plate structure with ribbing, adjacent two section bow members（1）Tip side is respectively arranged with heavy in section steel plate（3）Or any of which section bow member（1）Tip side is provided with heavy in section steel plate（3）Another section bow member（1）Tip side is provided with generic connectivity steel plate（4）, two heavy in section steel plates（3）Between or heavy in section steel plate（3）With generic connectivity steel plate（4）Between pass through connecting bolt（5）It is connected, heavy in section steel plate（3）Length is not less than bow member（1）The 1/2 of spacing, and heavy in section steel plate（3）Stretch out bow member（1）The length of the left and right sides is consistent.Heavy in section steel plate（3）Plate face compared with it is long, lifting surface area is big, so as to effectively constrain bow member（1）Sinking.
Description
Technical field
A kind of tunnel junction steel plate is the utility model is related to, more specifically to a kind of tunnel arch heavy in section company with ribbing
Steel plate structure is connect, belongs to tunnel steelframe technical field of construction.
Background technology
Preliminary bracing is to ensure adjoining rock stability and the important means of control deformation after tunnel excavation, therefore in work progress
The quality and effect of preliminary bracing are must assure that, to ensure construction safety and reduce surrouding rock deformation.At present, generally using grille arch
The primary structure of frame and shaped steel arch as Tunnel；Because the factors such as tunnel excavation method, installation operation influence, tunnel
Road bow member needs segmented making, and junction steel plate is generally set in every section termination and is connected by screw bolts；Therefore bow member joint is
The weak link of total, ensure that its connection effect tool is of great significance.
In weak surrounding rock, because basal plane bearing capacity is weak, there is problems with existing tunnel arch joint：First, it is common
Junction steel plate stress surface is narrow, and uncontrollable bow member arch springing sinks, and then easily causes Vault settlement, cracking.2nd, got out of a predicament or an embarrassing situation in excavation
Afterwards, bow member arch springing is hanging, and first branch bow member easily produces moderate finite deformation because stress is mutated, or even has the risk of unstability.3rd, bow member encircles
For pin by the easy run-off the straight of lateral pressure, generic connectivity steel plate resistivity is weak, or even gross distortion or warpage therewith, causes up and down
It can not be connected by screw bolts between adjacent steelframe section at step, and have to use and be welded to connect, on the one hand, influence bow member
It is overall smoother, it is unfavorable for stress, still further aspect, may causes gap be present between bow member joint, weaken bow member joint
Intensity.
The content of the invention
The purpose of this utility model is easily to produce because stress is mutated for bow member existing for existing tunnel arch joint
Raw moderate finite deformation, the problems such as bow member joint intensity is smaller, there is provided a kind of tunnel arch heavy in section junction steel plate structure with ribbing.
To achieve the above object, technical solution of the present utility model is：A kind of tunnel arch heavy in section connection with ribbing
Steel plate structure, adjacent two section bow member tip sides are respectively arranged with heavy in section steel plate or any of which section bow member tip side is set
It is equipped with another section bow member tip side of heavy in section steel plate and is provided with generic connectivity steel plate, between described two heavy in section steel plates,
Or be connected between heavy in section steel plate and generic connectivity steel plate by connecting bolt, described heavy in section steel plate length is not less than
The 1/2 of bow member spacing, and the length that heavy in section steel plate is stretched out at left and right sides of bow member is consistent.
The bow member tip side both sides for being provided with heavy in section steel plate are welded with along between web center line and heavy in section steel plate center line
Straight triangular stall board.
Described straight triangular stall board inclination angle is 45~60 degree, and straight two right angle edge lengths of triangular stall board are not less than heavy in section
The 1/3 of steel plate length, the straight right-angle side of triangular stall board one and wire bonding in bow member web, straight another right-angle side of triangular stall board are cut with big
Wire bonding in the steel plate of face.
Forward direction is provided with pre-embedded bolt on the inside of described heavy in section steel plate, and one end sealing is stamped in described pre-embedded bolt termination
PVC sleeve pipes.
Compared with prior art, the beneficial effects of the utility model are：
1st, two section bow member tip sides adjacent in the utility model are respectively arranged with heavy in section steel plate or any of which section
Bow member tip side is provided with another section bow member tip side of heavy in section steel plate and is provided with generic connectivity steel plate；Heavy in section steel plate with it is existing
Generic connectivity steel plate compare, its plate face compared with it is long, lifting surface area is big, so as to effectively constrain the sinking of bow member.
2nd, the bow member tip side both sides of heavy in section steel plate are provided with the utility model along web center line and heavy in section steel plate
Straight triangular stall board is welded between center line；Reinforced by straight triangular stall board, it is tight can to prevent that the lower heavy in section steel plate of external force effect from occurring
Deform again, bow member of being got out of a predicament or an embarrassing situation in influenceing docking；And heavy in section steel plate combines with straight triangular stall board, the bending resistance of bow member can be effectively improved
Ability, so as to increase the stability of first branch bow member.
3rd, forward direction is provided with pre-embedded bolt on the inside of the steel plate of heavy in section in the utility model, and one end envelope is stamped in pre-embedded bolt termination
The PVC sleeve pipes of mouth；By the positive setting pre-embedded bolt on the inside of the steel plate of bow member heavy in section and the form of PVC casing protections is utilized,
The close of bow member connection up and down is ensured, it is firm.
Brief description of the drawings
Fig. 1 is that the section bow member tip side of the utility model two sets heavy in section steel plate and generic connectivity steel plate structure schematic diagram.
Fig. 2 is Fig. 1 side views.
Fig. 3 is that the section bow member tip side of the utility model two sets two pieces of heavy in section steel plate structure schematic diagrames respectively.
Fig. 4 is the utility model generic connectivity steel plate top view.
Fig. 5 is the utility model heavy in section steel plate top view.
In figure, bow member 1, triangular stall board 2, heavy in section steel plate 3, generic connectivity steel plate 4, connecting bolt 5, PVC sleeve pipes 6, in advance
Bury bolt 7, nut 8, bolt hole 9, the bow member edge of a wing 10, bow member web 11.
Embodiment
The utility model is described in further detail below in conjunction with brief description of the drawings and embodiment.
Referring to Fig. 1 to Fig. 5, a kind of tunnel arch heavy in section junction steel plate structure with ribbing, the adjacent two section tip sides of bow member 1
It is respectively arranged with heavy in section steel plate 3 or the tip side of any of which section bow member 1 is provided with another section bow member 1 of heavy in section steel plate 3 and connect
Head end is provided with generic connectivity steel plate 4；Adjacent two section bow members 1 herein suitable for up/down steps or bow member 2 of getting out of a predicament or an embarrassing situation apply
Work.Pass through connecting bolt between described two heavy in section steel plates 3 or between heavy in section steel plate 3 and generic connectivity steel plate 4
5 are connected, and bolt hole sets corresponding with generic connectivity steel plate 4；And the described length of heavy in section steel plate 3 is not less than the spacing of bow member 1
1/2, and heavy in section steel plate 3 stretch out the left and right sides of bow member 1 length it is consistent；The spacing of bow member 1 herein refers to adjacent two Pin
Distance between bow member 1.I.e. it changes the generic connectivity steel plate 4 that the arch springing two of tunnel arch 1 is saved between the tip side of bow member 1 into two pieces big
Section steel plate 3 or one block of heavy in section steel plate and one block of generic connectivity steel plate 4, the specific size combination bow member 1 of the heavy in section steel plate 3
Model, the spacing of bow member 1, construction environment etc. consider.
Referring to Fig. 1 to Fig. 5, the tip side both sides of bow member 1 of heavy in section steel plate 3 are provided with along web center line and heavy in section steel plate
Straight triangular stall board 2 is welded between 3 center lines.Straight triangular stall board 2 can be formed using generic connectivity steel plate 4 to cutting.Further, institute
The inclination angle of straight triangular stall board 2 stated is 45~60 degree, and straight 2 two right angle edge lengths of triangular stall board are grown not less than heavy in section steel plate 3
The 1/3 of degree, the straight right-angle side of triangular stall board 2 one and wire bonding, straight 2 another right-angle side of triangular stall board and heavy in section in the web of bow member 1
Wire bonding in steel plate 3；The inclination angle of straight triangular stall board 2 herein is the α angles in Fig. 1.
Referring to Fig. 2, the described inner side forward direction of heavy in section steel plate 3 is provided with pre-embedded bolt 7, the described termination of pre-embedded bolt 7
It is stamped the PVC sleeve pipes 6 of an end closure.The described hot melt of PVC sleeve pipes 6 is fixed, and prevents the foreign matters such as gunite concrete from invading.
The construction method of this kind of tunnel arch heavy in section junction steel plate structure with ribbing, comprises the following steps：
Step 1: process outside the venue：According to design drawing, satisfactory bow member 1, heavy in section steel plate 3 and straight three are produced
Angle side bracket 2, and it is firm three is welded each other, in heavy in section, the inner side of steel plate 3 is positive sets pre-embedded bolt 7, and in pre-buried spiral shell
The PVC sleeve pipes 6 of a side seal mouth on the termination point casing of bolt 7, fix the hot melt of PVC sleeve pipes 6.
Step 2: upper section bow member 1 is installed：Substrate void slag is cleaned out, it is smooth in place, make the accurate positioning of bow member 1, fixation
It is firm, and wrapped the arch springing heavy in section steel plate 3 of bow member 1 with non-woven fabrics, prevent the foreign matters such as gunite concrete from invading.
Step 3: lower section bow member 1 docks：Non-woven fabrics in removal step two, and the end face of heavy in section steel plate 3 is cleared up and done
Only, expose inner side pre-embedded bolt 7；Between the heavy in section steel plate 3 of two section bow members 1 or heavy in section steel plate 3 and generic connectivity steel
Bolt hole docking between plate 4 is accurate, and the connecting bolt 5 in outside is reversely installed, and the connecting bolt 5 in outside refers to herein
Connecting bolt 5 away from country rock side；All connecting bolts 5 are fastened again.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace, said structure can also be made
The scope of protection of the utility model should be all considered as belonging to.
Claims (4)
- A kind of 1. tunnel arch heavy in section junction steel plate structure with ribbing, it is characterised in that：Two adjacent section bow members（1）Tip side point Heavy in section steel plate is not provided with（3）Or any of which section bow member（1）Tip side is provided with heavy in section steel plate（3）Another section arch Frame（1）Tip side is provided with generic connectivity steel plate（4）, described two heavy in section steel plates（3）Between or heavy in section steel plate （3）With generic connectivity steel plate（4）Between pass through connecting bolt（5）It is connected, described heavy in section steel plate（3）Length is not less than arch Frame（1）The 1/2 of spacing, and heavy in section steel plate（3）Stretch out bow member（1）The length of the left and right sides is consistent.
- A kind of 2. tunnel arch heavy in section junction steel plate structure with ribbing according to claim 1, it is characterised in that：It is provided with Heavy in section steel plate（3）Bow member（1）Tip side both sides are along web center line and heavy in section steel plate（3）Straight triangle is welded between center line Floor（2）.
- A kind of 3. tunnel arch heavy in section junction steel plate structure with ribbing according to claim 2, it is characterised in that：Described Straight triangular stall board（2）Inclination angle is 45~60 degree, straight triangular stall board（2）Two right angle edge lengths are not less than heavy in section steel plate（3） The 1/3 of length, straight triangular stall board（2）One right-angle side and bow member（1）Wire bonding in web, straight triangular stall board（2）Another right-angle side With heavy in section steel plate（3）Middle wire bonding.
- A kind of 4. tunnel arch heavy in section junction steel plate structure with ribbing according to claim 1, it is characterised in that：Described Heavy in section steel plate（3）Inner side forward direction is provided with pre-embedded bolt（7）, described pre-embedded bolt（7）It is stamped the PVC of one end sealing in termination Sleeve pipe（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720572809.0U CN206972266U (en) | 2017-05-22 | 2017-05-22 | A kind of tunnel arch heavy in section junction steel plate structure with ribbing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720572809.0U CN206972266U (en) | 2017-05-22 | 2017-05-22 | A kind of tunnel arch heavy in section junction steel plate structure with ribbing |
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| Publication Number | Publication Date |
|---|---|
| CN206972266U true CN206972266U (en) | 2018-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720572809.0U Active CN206972266U (en) | 2017-05-22 | 2017-05-22 | A kind of tunnel arch heavy in section junction steel plate structure with ribbing |
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| CN (1) | CN206972266U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612323A (en) * | 2018-05-22 | 2018-10-02 | 江苏省交通工程集团有限公司 | A kind of I-steel steelframe junction steel plate auxiliary locator and its construction method |
| CN114135322A (en) * | 2021-11-22 | 2022-03-04 | 中铁十六局集团第三工程有限公司 | Reinforcing method for preventing steel frame from being twisted in large-deformation tunnel |
-
2017
- 2017-05-22 CN CN201720572809.0U patent/CN206972266U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612323A (en) * | 2018-05-22 | 2018-10-02 | 江苏省交通工程集团有限公司 | A kind of I-steel steelframe junction steel plate auxiliary locator and its construction method |
| CN114135322A (en) * | 2021-11-22 | 2022-03-04 | 中铁十六局集团第三工程有限公司 | Reinforcing method for preventing steel frame from being twisted in large-deformation tunnel |
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