CN207161119U - A kind of symmetrical trouble hole supporting construction - Google Patents
A kind of symmetrical trouble hole supporting construction Download PDFInfo
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- CN207161119U CN207161119U CN201721098562.XU CN201721098562U CN207161119U CN 207161119 U CN207161119 U CN 207161119U CN 201721098562 U CN201721098562 U CN 201721098562U CN 207161119 U CN207161119 U CN 207161119U
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- shaped steel
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Abstract
The utility model discloses a kind of symmetrical trouble hole supporting construction, including main hole, first hole and second hole, the shaped steel arch of semi-arched first is provided with first hole, the shaped steel arch of semi-arched second is provided with second hole；The every Pin and the second shaped steel arch of first shaped steel arch every Pin are in one-to-one relation, and correspond docking and fix, and form the shaped steel arch of complete arch door shape；The setting area of first shaped steel arch and the second shaped steel arch from first hole, second hole and main hole connection to Cha Dong Cha Dangchu.The symmetrical 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, has reached good supporting effect.
Description
Technical field
The utility model belongs to underground engineering construction field, and in particular to a kind of symmetrical trouble hole supporting construction.
Background technology
During current tunnel engineering is built, symmetrical Cha Dong is excavated if needed, can typically select the good location of geological conditions
Excavated, get around the location of features as poor geologic condition as far as possible, in favor of ensureing Stability of Excavation Surrounding.Opened in the good location of geological conditions
Wa Cha holes, 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 symmetrical 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 symmetrical
Cha Dong carries out the structure of supporting.
The utility model solve problem technical scheme be：A kind of symmetrical trouble hole supporting construction, including main hole and main hole connect
Logical first hole and second hole, and first hole and second hole are symmetrical along main hole axis, and half is provided with first hole
The shaped steel arch of arch first, the shaped steel arch of semi-arched second is provided with second hole；
In first hole, the non-top arch abutment of every shaped steel archs of a Pin first is fixed on the bottom plate in first hole, each
The top of the shaped steel archs of Pin first is fixedly connected by anchor pole with country rock；
In second hole, the non-top arch abutment of every shaped steel archs of a Pin second is fixed on the bottom plate in second hole, each
The top of the shaped steel archs of Pin second is fixedly connected by anchor pole with country rock；
The every Pin and the second shaped steel arch of first shaped steel arch every Pin are in one-to-one relation, and are corresponded
Docking is fixed, and forms the shaped steel arch of complete arch door shape；
The setting area of first shaped steel arch and the second shaped steel arch connects from first hole, second hole with main hole
Place is refuted to Cha Dong Cha Dangchu.
The form that such scheme is connected using the first 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 symmetrical Cha Dong to be possibly realized in the location of features as poor geologic condition.
Further, it is sprayed with concrete between first shaped steel arch, the top of the second shaped steel arch and country rock.
Specifically, the shaped steel used in first shaped steel arch, the second shaped steel arch is I-steel, the anchor pole lower end folding
L-shaped is curved, horizontal component and the I-steel bottom flange of the bending of anchor pole lower end weld.
The end of every the first shaped steel archs of Pin free end is equipped with the first connecting plate, and every shaped steel archs of a Pin second are free
The end at end is equipped with the second connecting plate, the first connecting plate and the second connecting plate bolt connection, so that the first shaped steel arch
Fixation is docked with every Pin of the second shaped steel arch, forms the shaped steel arch of complete arch door shape.
Preferably, the every shaped steel archs of a Pin first and the second shaped steel arch be each perpendicular to Cha Dong fork angle angular bisector set
Put.It is that structure is most simple using this arrangement, the shaped steel arch arrangement form for most convenient of constructing.
For the stability of the first shaped steel arch of increase and Second-Type steel arch support, first shaped steel arch and Second-Type
The non-top arch abutment of steel arch-shelf is equipped with base, is fixed on by base support on bottom plate.
The utility model design symmetrical trouble hole supporting construction so that features as poor geologic condition location excavate Cha Dong turn into can
Energy.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 symmetrical trouble hole shaped steel arch horizontal layout schematic diagram.
Fig. 2 is shaped steel arch profile.
Fig. 3 is shaped steel arch joint detail drawing.
In figure：The shaped steel archs of 1- first, 2- Cha Dong forks angle, the main holes of 3-, first hole of 4-, second hole of 5-, 6- second
Shaped steel arch, 7- anchor poles, 8- trouble crotch, 9- concrete, the 10- edges of a wing, the connecting plates of 11- first, the connecting plates of 61- second.
Embodiment
As shown in Figures 1 to 3, a kind of symmetrical trouble hole supporting construction, including main hole 3, first hole 4 being connected with main hole 3 and
Second hole 5, and first hole 4 and second hole 5 are along the main axisymmetrical of hole 3.
The first shaped steel arch of semi-arched 1 is provided with first hole 4, the shaped steel of semi-arched second is provided with second hole 5
Bow member 6.
In first hole 4, the non-top arch abutment of every the first shaped steel archs of a Pin 1 is fixed on the bottom plate in first hole 4, often
The top of one the first shaped steel archs of Pin 1 is fixedly connected by anchor pole 7 with country rock.
In second hole 5, the non-top arch abutment of every the second shaped steel archs of a Pin 6 is fixed on the bottom plate in second hole 5, often
The top of one the second shaped steel archs of Pin 6 is fixedly connected by anchor pole 7 with country rock.
Every Pin of first shaped steel arch 1 and every Pin of the second shaped steel arch 6 is in one-to-one relation, and one a pair
Fixation should be docked, forms the shaped steel arch of complete arch door shape.
The setting area of the shaped steel arch 6 of first shaped steel arch 1 and second is from first 4, second, hole hole 5 and main hole
At 3 connection to Cha Dong trouble crotch 8.
Concrete 9 is sprayed between first shaped steel arch 1, the top of the second shaped steel arch 6 and country rock.
Shaped steel used in first shaped steel arch 1, the second shaped steel arch 6 is I-steel, and the lower end of anchor pole 7 is bent into
L-shaped, the horizontal component of the lower end bending of anchor pole 7 weld with I-steel bottom flange 10.
The end of every free end of the first shaped steel archs of a Pin 1 is equipped with the first connecting plate 11, every the second shaped steel archs of a Pin 6
The end of free end is equipped with the second connecting plate 61, the first connecting plate 11 and the bolt connection of the second connecting plate 61, so that the
One shaped steel arch 1 docks fixation with every Pin of the second shaped steel arch 6, forms the shaped steel arch of complete arch door shape
Frame.
The angular bisector that every a Pin the first shaped steel archs 1 and the second shaped steel arch 6 are each perpendicular to Cha Dong forks angle 2 is set.
The non-top arch abutment of the shaped steel arch 6 of first shaped steel arch 1 and second is equipped with base, is supported and fixed by base
In on bottom plate.
Construction procedure is as follows：
（a）Excavated from main hole 3 to first hole 4, linked network and first shotcrete support are done after excavating shaping.
（b）At connection to Cha Dong trouble crotch 8 from first 4, second, hole hole 5 with main hole 3, by the first shaped steel arch
1 non-top arch abutment is fixed on the bottom plate in first hole 4.Coagulation is sprayed again between the first shaped steel arch 1 and first hole wall of hole 4
Soil, then by the more one end of L-shaped anchor pole 7 insertions, country rock is fixed, the other end is bent into horizontal part and the bottom of the first shaped steel arch 1
Weld on the portion edge of a wing 10.
（c）Second hole 5 of opposite side is excavated, linked network and first shotcrete support are done after excavating shaping.
（d）The non-top arch abutment of second shaped steel arch 6 is fixed on to the bottom plate in second hole 5, by the every of the second shaped steel arch 6
One Pin docks fixation with every Pin of the first shaped steel arch 1, forms the shaped steel arch of complete arch door shape.Second
Multiple pneumatically placed concrete between shaped steel arch 6 and second hole wall of hole 5, then, country rock is inserted into more one end of L-shaped anchor pole 7 and fixed, separately
One end is bent into horizontal part and welded with the bottom flange 10 of the second shaped steel arch 6.
The angular bisector that every a Pin the first shaped steel archs 1 and the second shaped steel arch 6 are each perpendicular to Cha Dong forks angle 2 is set.
The non-top arch abutment of the shaped steel arch 6 of first shaped steel arch 1 and second is welded with base, is supported by base solid
Due on bottom plate.
Claims (6)
1. a kind of symmetrical trouble hole supporting construction, including main hole（3）And main hole（3）First hole of connection（4）With second hole
（5）, and first hole（4）With second hole（5）Along main hole（3）Axisymmetrical, it is characterised in that：In first hole（4）Inside set
There is the shaped steel arch of semi-arched first（1）, in second hole（5）It is interior to be provided with the shaped steel arch of semi-arched second（6）；
In first hole（4）It is interior, every shaped steel archs of a Pin first（1）Non-top arch abutment be fixed on first hole（4）Bottom plate on,
Every shaped steel archs of a Pin first（1）Top pass through anchor pole（7）It is fixedly connected with country rock；
In second hole（5）It is interior, every shaped steel archs of a Pin second（6）Non-top arch abutment be fixed on second hole（5）Bottom plate on,
Every shaped steel archs of a Pin second（6）Top pass through anchor pole（7）It is fixedly connected with country rock；
First shaped steel arch（1）Every a Pin and the second shaped steel arch（6）Every Pin be in one-to-one relation, and one a pair
Fixation should be docked, forms the shaped steel arch of complete arch door shape；
First shaped steel arch（1）With the second shaped steel arch（6）Setting area from first hole（4）, second hole（5）With
Main hole（3）Connection to Cha Dong trouble crotch（8）Place.
2. symmetrical trouble hole supporting construction according to claim 1, it is characterised in that：First shaped steel arch（1）, second
Shaped steel arch（6）Top and country rock between be sprayed with concrete（9）.
3. symmetrical trouble hole supporting construction according to claim 2, it is characterised in that：First shaped steel arch（1）, second
Shaped steel arch（6）Shaped steel used is I-steel, the anchor pole（7）Lower end bending is L-shaped, anchor pole（7）The level of lower end bending
Part and I-steel bottom flange（10）Welding.
4. symmetrical trouble hole supporting construction according to claim 3, it is characterised in that：Every shaped steel archs of a Pin first（1）From
First connecting plate is equipped with by the end held（11）, every shaped steel archs of a Pin second（6）The end of free end is equipped with the second company
Fishplate bar（61）, the first connecting plate（11）With the second connecting plate（61）Bolt connection, so that the first shaped steel arch（1）With second
Shaped steel arch（6）Every Pin correspond docking and fix, form the shaped steel arch of complete arch door shape.
5. symmetrical trouble hole supporting construction according to claim 1, it is characterised in that：Every shaped steel archs of a Pin first（1）With
Second shaped steel arch（6）It is each perpendicular to Cha Dong forks angle（2）Angular bisector set.
6. symmetrical trouble hole supporting construction according to claim 1, it is characterised in that：First shaped steel arch（1）With
Two shaped steel archs（6）Non-top arch abutment be equipped with base, by base support be fixed on bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721098562.XU CN207161119U (en) | 2017-08-30 | 2017-08-30 | A kind of symmetrical trouble hole supporting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721098562.XU CN207161119U (en) | 2017-08-30 | 2017-08-30 | A kind of symmetrical trouble hole supporting construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207161119U true CN207161119U (en) | 2018-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721098562.XU Active CN207161119U (en) | 2017-08-30 | 2017-08-30 | A kind of symmetrical trouble hole supporting construction |
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| CN (1) | CN207161119U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313790A (en) * | 2017-08-30 | 2017-11-03 | 中国电建集团中南勘测设计研究院有限公司 | A kind of symmetrical trouble hole supporting construction and its construction method |
| CN109853494A (en) * | 2019-03-12 | 2019-06-07 | 中国电建集团中南勘测设计研究院有限公司 | Cha Dong and surge-chamber integral structure and its construction method |
-
2017
- 2017-08-30 CN CN201721098562.XU patent/CN207161119U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313790A (en) * | 2017-08-30 | 2017-11-03 | 中国电建集团中南勘测设计研究院有限公司 | A kind of symmetrical trouble hole supporting construction and its construction method |
| CN109853494A (en) * | 2019-03-12 | 2019-06-07 | 中国电建集团中南勘测设计研究院有限公司 | Cha Dong and surge-chamber integral structure and its construction method |
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