CN207093102U - A kind of asymmetric trouble hole supporting construction - Google Patents
A kind of asymmetric trouble hole supporting construction Download PDFInfo
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- CN207093102U CN207093102U CN201721097322.8U CN201721097322U CN207093102U CN 207093102 U CN207093102 U CN 207093102U CN 201721097322 U CN201721097322 U CN 201721097322U CN 207093102 U CN207093102 U CN 207093102U
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Abstract
The utility model discloses a kind of asymmetric trouble hole supporting construction, including main hole, branch hole, in branch hole, from the side wall of branch hole one to another side wall across provided with complete first shaped steel arch；At branch hole and main hole boundary line the single shaped steel archs of a Pin second are provided with along intersection direction；The shaped steel arch of semi-arched the 3rd is provided with main hole, positioned at main hole and branch hole intersection；In main hole, the non-top arch abutment of every shaped steel archs of a Pin the 3rd is fixed on the bottom plate in main hole, and the crown end of every shaped steel archs of a Pin the 3rd is vertical with the second shaped steel arch to be fixedly connected；Region in main hole, outside main hole and branch hole intersection scope, from the main side wall of hole one to another side wall across provided with complete 4th shaped steel arch.The asymmetric trouble hole supporting construction of the utility model design so that excavate Cha Dong in the location of features as poor geologic condition and be possibly realized.Using the form of shaped steel arch supporting, arrangement is simple, easy for construction, and supporting effect is good.
Description
Technical field
The utility model belongs to underground engineering construction field, and in particular to a kind of asymmetric trouble hole supporting construction.
Background technology
In current tunnel construction project, asymmetric Cha Dong is excavated if needed, can typically select the good ground of geological conditions
Duan Jinhang is excavated, and gets around the location of features as poor geologic condition as far as possible, in favor of ensureing adjoining rock stability.Excavated in the good location of geological conditions
Cha Dong, typically only need to take combined bolting and shotcrete to maintain adjoining rock stability.
But inevitably existing in Practical Project needs to excavate Cha Dong feelings in the position of features as poor geologic condition
Condition, in this case traditional bolt-spary supports be difficult to ensure that adjoining rock stability, the actual requirement of engineering can not be met, it is therefore desirable to one
Kind can excavate the structure that asymmetric Cha Dong carries out supporting to the location of features as poor geologic condition.
Utility model content
In view of the above-mentioned problems, the utility model aim to provide it is a kind of the location of features as poor geologic condition can be excavated it is asymmetric
Cha Dong carries out the structure of supporting.
The utility model solve problem technical scheme be：A kind of asymmetric trouble hole supporting construction, including main hole, in main hole
The branch hole that bifurcated connects in side wall, in branch hole, encircle from the side wall of branch hole one to another side wall across provided with complete first shaped steel
Frame；
At branch hole and main hole boundary line the single shaped steel archs of a Pin second are provided with along intersection direction；
The shaped steel arch of semi-arched the 3rd is provided with main hole, positioned at main hole and branch hole intersection；
In main hole, the non-top arch abutment of every shaped steel archs of a Pin the 3rd is fixed on the bottom plate in main hole, every types of a Pin the 3rd
The top of steel arch-shelf is fixedly connected by anchor pole with country rock, the crown ends of every shaped steel archs of a Pin the 3rd with Second-Type steel arch
Frame is vertically fixedly connected；
Region in main hole, outside main hole and branch hole intersection scope, it is horizontal from the main side wall of hole one to another side wall
Have complete 4th shaped steel arch.
The form that such scheme is connected using the 3rd shaped steel arch and the second shaped steel arch, overcome main hole and branch hole and intersect
The problem of mouth supporting so that set asymmetric Cha Dong to be possibly realized in the location of features as poor geologic condition.
Further, first shaped steel arch, the second shaped steel arch, the 3rd shaped steel arch, the top of the 4th shaped steel arch
Concrete is sprayed between portion and country rock；
The top of every shaped steel archs of a Pin second is fixedly connected by anchor pole with country rock.
Specifically, used in first shaped steel arch, the second shaped steel arch, the 3rd shaped steel arch, the 4th shaped steel arch
Shaped steel is I-steel, and anchor pole lower end bending is L-shaped, and horizontal part and the I-steel bottom flange of the bending of anchor pole lower end weld.
The edge of a wing of the edge of a wing at the crown end of every shaped steel archs of a Pin the 3rd with the second shaped steel arch is by being connected crab bolt
Connection.
Generally, angle between the branch hole and main hole be present, first shaped steel arch is radially set；
3rd shaped steel arch and the 4th shaped steel arch are arranged perpendicular to main hole axis.
Preferably, the non-top arch abutment of every shaped steel archs of a Pin the 3rd is equipped with base, is fixed on main hole by base support
On bottom plate.
The asymmetric trouble hole supporting construction of the utility model design so that excavating Cha Dong in the location of features as poor geologic condition turns into
May.Using the form of shaped steel arch supporting, arrangement is simple, easy for construction, has reached good supporting effect.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is asymmetric trouble hole shaped steel arch horizontal layout schematic diagram.
Fig. 2 is main hole and branch hole intersection shaped steel arch connection diagram.
In figure：The main holes of 1-, 2- branch hole, the shaped steel archs of 3- first, the shaped steel archs of 4- the 4th, the shaped steel archs of 5- the 3rd, 6-
Two shaped steel archs, 7- connecting plates, 9- anchor poles, 10- concrete, the 11- edges of a wing.
Embodiment
As shown in Fig. 1~2, a kind of asymmetric trouble hole supporting construction, including main hole 1, the bifurcated connection in the main side wall of hole 1
Branch hole 2.Angle be present between the branch hole 2 and main hole 1.
In branch hole 2, from the side wall of branch hole 2 one to another side wall across provided with complete first shaped steel arch 3.Described first
Shaped steel arch 3 is radially set.
At branch hole 2 and the main boundary line of hole 1 single the second shaped steel archs of a Pin 6 are provided with along intersection direction.
The shaped steel arch 5 of semi-arched the 3rd is provided with main hole 1, positioned at main hole 1 and the intersection of branch hole 2.
In main hole 1, the non-top arch abutment of every shaped steel archs 5 of a Pin the 3rd is equipped with base, every shaped steel archs 5 of a Pin the 3rd
Non-top arch abutment be fixed on the bottom plate in main hole 1, the top of every shaped steel archs 5 of a Pin the 3rd is fixed by anchor pole 9 with country rock
Connection, the crown ends of every shaped steel archs 5 of a Pin the 3rd is vertical with the second shaped steel arch 6 to be fixedly connected.
Region in main hole 1, outside main hole 1 and the intersection scope of branch hole 2, from the main side wall of hole 1 one to opposite side
Wall is across provided with complete 4th shaped steel arch 4.
First shaped steel arch 3, the second shaped steel arch 6, the 3rd shaped steel arch 5, the top of the 4th shaped steel arch 4 are with enclosing
Concrete 10 is sprayed between rock.
The top of every the second shaped steel archs of a Pin 6 is fixedly connected by anchor pole 9 with country rock.
First shaped steel arch 3, the second shaped steel arch 6, the 3rd shaped steel arch 5, the shaped steel used in the 4th shaped steel arch 4
For I-steel.The lower end bending of anchor pole 9 is L-shaped, and the horizontal component of the lower end bending of anchor pole 9 welds with I-steel bottom flange 11
Connect.
The edge of a wing 11 at the crown end of every shaped steel archs 5 of a Pin the 3rd passes through with the edge of a wing 11 of the second shaped steel arch 6 to be connected
The bolt connection of plate 7.
3rd shaped steel arch 5 and the 4th shaped steel arch 4 are arranged perpendicular to the main axis of hole 1.
Construction procedure is as follows：
（a）Branch hole 2 is excavated, linked network and first shotcrete support are done after excavating shaping.
（b）In branch hole 2, from the side wall of branch hole 2 one to another side wall radially across the complete first shaped steel arch of erection
Frame 3, until the intersection in branch hole 2 and main hole 1, and coagulation is sprayed again between the first shaped steel arch 3 and the hole wall of branch hole 2 simultaneously
Soil.（c）At the intersection boundary line in branch hole 2 and main hole 1 single the second shaped steel archs of a Pin 6 are set up along intersection direction.So
Concrete 10 is inserted into the one end of anchor pole 9 afterwards until being welded in the top girth rock of branch hole 2, at the top of the other end and the second shaped steel arch 6.
（d）Main hole 1 is excavated, linked network and first shotcrete support are done after excavating shaping.
（e）In main hole 1, in the range of main hole 1 and the intersection of branch hole 2 the 3rd shaped steel is set up perpendicular to the main axis of hole 1
Bow member 5.The non-top arch abutment of every shaped steel archs 5 of a Pin the 3rd is fixed on the bottom plate in main hole 1.And by every shaped steel archs of a Pin the 3rd
5 crown end is vertical with the second shaped steel arch 6 to be fixedly connected.It is that both edges of a wing 11 are passed through into company when being vertically fixedly connected
The bolt connection of fishplate bar 7.Meanwhile the multiple pneumatically placed concrete between the 3rd shaped steel arch 5 and the hole wall of main hole 1.Then the one end of anchor pole 9 is inserted
Enter concrete 10 until being welded in the main top girth rock of hole 1, at the top of the other end and the 3rd shaped steel arch 5.
（f）Region in main hole 1, outside main hole 1 and the intersection of branch hole 2, from the main side wall of hole 1 one to another side wall
Perpendicular to the main axis of hole 1 across setting up complete 4th shaped steel arch 4, and simultaneously the 4th shaped steel arch 4 and the main hole wall of hole 1 it
Between multiple pneumatically placed concrete.
The sequence of construction of above-mentioned steps is（a）—（b）—（c）—（d）—（e）—（f）, or（d）—（c）—（e）—
（f）—（a）—（b）；Wherein step（e）And step（f）Sequencing can exchange.
First shaped steel arch 3, the second shaped steel arch 6, the 3rd shaped steel arch 5, the shaped steel used in the 4th shaped steel arch 4
For I-steel, the lower end bending of anchor pole 9 is L-shaped, and the horizontal part of the lower end bending of anchor pole 9 welds with I-steel bottom flange 11.
Claims (6)
1. a kind of asymmetric trouble hole supporting construction, including main hole（1）, in main hole（1）The branch hole that bifurcated connects in side wall（2）, its
It is characterised by：In branch hole（2）It is interior, from branch hole（2）One side wall is to another side wall across provided with complete first shaped steel arch（3）；
In branch hole（2）With main hole（1）At boundary line the single shaped steel archs of a Pin second are provided with along intersection direction（6）；
In main hole（1）It is interior, positioned at main hole（1）With branch hole（2）Intersection is provided with the shaped steel arch of semi-arched the 3rd（5）；
In main hole（1）It is interior, every shaped steel archs of a Pin the 3rd（5）Non-top arch abutment be fixed on main hole（1）Bottom plate on, every Pin
Three shaped steel archs（5）Top pass through anchor pole（9）It is fixedly connected with country rock, every shaped steel archs of a Pin the 3rd（5）Crown end
With the second shaped steel arch（6）Vertically it is fixedly connected；
In main hole（1）It is interior, in main hole（1）With branch hole（2）Region outside the scope of intersection, from main hole（1）One side wall is to separately
One side wall is across provided with complete 4th shaped steel arch（4）.
2. asymmetric trouble hole supporting construction according to claim 1, it is characterised in that：First shaped steel arch（3）,
Two shaped steel archs（6）, the 3rd shaped steel arch（5）, the 4th shaped steel arch（4）Top and country rock between be sprayed with concrete
（10）；
Every shaped steel archs of a Pin second（6）Top pass through anchor pole（9）It is fixedly connected with country rock.
3. asymmetric trouble hole supporting construction according to claim 2, it is characterised in that：First shaped steel arch（3）,
Two shaped steel archs（6）, the 3rd shaped steel arch（5）, the 4th shaped steel arch（4）Shaped steel used is I-steel, the anchor pole（9）Under
Hold bending L-shaped, anchor pole（9）The horizontal part of lower end bending and I-steel bottom flange（11）Welding.
4. asymmetric trouble hole supporting construction according to claim 3, it is characterised in that：Every shaped steel archs of a Pin the 3rd（5）
Crown end the edge of a wing（11）With the second shaped steel arch（6）The edge of a wing（11）Pass through connecting plate（7）Bolt connection.
5. asymmetric trouble hole supporting construction according to claim 1, it is characterised in that：The branch hole（2）With main hole（1）It
Between angle, first shaped steel arch be present（3）Radially set；
3rd shaped steel arch（5）With the 4th shaped steel arch（4）Perpendicular to main hole（1）Axis is arranged.
6. asymmetric trouble hole supporting construction according to claim 1, it is characterised in that：Every shaped steel archs of a Pin the 3rd（5）
Non-top arch abutment be equipped with base, by base support be fixed on main hole（1）On bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721097322.8U CN207093102U (en) | 2017-08-30 | 2017-08-30 | A kind of asymmetric trouble hole supporting construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721097322.8U CN207093102U (en) | 2017-08-30 | 2017-08-30 | A kind of asymmetric trouble hole supporting construction |
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| CN207093102U true CN207093102U (en) | 2018-03-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387131A (en) * | 2017-08-30 | 2017-11-24 | 中国电建集团中南勘测设计研究院有限公司 | A kind of asymmetric trouble hole supporting construction and its construction method |
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2017
- 2017-08-30 CN CN201721097322.8U patent/CN207093102U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387131A (en) * | 2017-08-30 | 2017-11-24 | 中国电建集团中南勘测设计研究院有限公司 | A kind of asymmetric trouble hole supporting construction and its construction method |
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