CN203362178U - Telescopic U-type steel support for high ground stress soft rock tunnel construction - Google Patents
Telescopic U-type steel support for high ground stress soft rock tunnel construction Download PDFInfo
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- CN203362178U CN203362178U CN 201320372913 CN201320372913U CN203362178U CN 203362178 U CN203362178 U CN 203362178U CN 201320372913 CN201320372913 CN 201320372913 CN 201320372913 U CN201320372913 U CN 201320372913U CN 203362178 U CN203362178 U CN 203362178U
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- curved beam
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- soft rock
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Abstract
The utility model discloses a telescopic U-type steel support for high ground stress soft rock tunnel construction. The telescopic U-type steel support for high ground stress soft rock tunnel construction comprises an arch crown arc beam, two arch waist arc beams symmetrically distributed below the left side and the right side of the arch crown arc beam, two upright arc beams symmetrically distributed below the left side and the right side of the arch waist arc beams and a bottom arc beam connected between the two upright arc beams. The arch crown arc beam is arranged over the bottom arc beam. The arch crown arc beam, the two arch waist arc beams, the two upright arc beams and the bottom arc beam are respectively made of U-type steel and are assembled to form a full-section supporting structure for supporting the full section of a constructed soft rock tunnel. The telescopic U-type steel support for high ground stress soft rock tunnel construction is simple in structure, reasonable in design, easy to machine, manufacture and install, convenient to use and operate, good in use effect and capable of deforming under the action of surrounding rock and being converted to a rigid support with extremely high pressure resistant capacity and extremely high torsion resistant capacity under the condition that deformation can not be conducted any more.
Description
Technical field
The utility model belongs to the tunnel support technical field, especially relates to scalable U-shaped steel bracket for a kind of high ground stress soft rock stress constructing tunnel.
Background technology
Along with the development of China railways highway construction, construction of tunnel, to the buried future development of growing up, is particularly passed through the severe weak surrounding rock of High Ground Stress Areas and geological environment, and lax large deformation very easily appears in construction.In the deep tunnel working design of the mountain ridge, generally only considered the relaxation pressure irrelevant with buried depth, but the weak surrounding rock under the high-ground stress effect also needs to consider " creeping pressure " effect, under this state, the weak surrounding rock self-stable ability is poor, the extruding large deformation easily occurs after cavitation, the heavy damage supporting and protecting system of tunnel, especially, under the impact of the factors such as buried or underground water, conventional supporting method can not effectively be contained its development of deformation.At present, not yet set up both at home and abroad tunnel control weak surrounding rock large deformation mechanism under the high ground stress soft rock stress geological conditions and theoretical research and the construction processing system for the treatment of Countermeasures.Therefore, nowadays lack a kind of simple in structure, reasonable in design, install to lay convenient and use scalable U-shaped steel bracket for high ground stress soft rock stress constructing tunnel easy and simple to handle, that result of use is good, can effectively control the middle and high earthquake intensity rock burst of high-ground stress section and soft rock extruding large deformation, the safety that has significantly increased high ground stress soft rock stress constructing tunnel process.
The utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, scalable U-shaped steel bracket for a kind of high ground stress soft rock stress constructing tunnel is provided, it is simple in structure, reasonable in design, processing and fabricating and install simple and use easy and simple to handle, result of use good, can issue living corresponding deformation at shoulder bed effects, and be converted to all very high rigid supports of resistance to compression and anti-twisting property after can not deforming.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: scalable U-shaped steel bracket for a kind of high ground stress soft rock stress constructing tunnel, it is characterized in that: comprise that a vault Curved beam that is laid in constructed soft rock tunnel vault, two symmetries are laid in the haunch Curved beam of below, the vault Curved beam left and right sides, two symmetries and are laid in the column Curved beam of below, the haunch Curved beam left and right sides and one and are connected in two bottom Curved beams between described column Curved beam, described vault Curved beam be laid in the bottom Curved beam directly over; Described vault Curved beam, haunch Curved beam, column Curved beam and bottom Curved beam are U-shaped steel; Described vault Curved beam, two described haunch Curved beams, two described column Curved beams and bottom Curved beam are assemblied to form a full section supporting and protection structure of constructed soft rock tunnel being carried out to full section supporting, the structure of described full section supporting and protection structure and size all with section structure and the consistent size of place, institute's supporting position construction soft rock tunnel.
Scalable U-shaped steel bracket for above-mentioned high ground stress soft rock stress constructing tunnel is characterized in that: the junction between the junction between the junction between described vault Curved beam and haunch Curved beam, haunch Curved beam and column Curved beam and column Curved beam and bottom Curved beam is provided with the lock foot anchoring stock anchored in rock stratum.
Scalable U-shaped steel bracket for above-mentioned high ground stress soft rock stress constructing tunnel is characterized in that: between described haunch Curved beam and column Curved beam and between described column Curved beam and bottom Curved beam, all by a plurality of clips, be connected.
Scalable U-shaped steel bracket for above-mentioned high ground stress soft rock stress constructing tunnel, it is characterized in that: between described vault Curved beam and two described haunch Curved beams, all by the structure that removably connects, be connected, the described structure that removably connects comprises two junction steel plates that are parallel laying, be fastenedly connected by a plurality of connecting bolts between two described junction steel plates, and all had a plurality of bolts hole of installing for a plurality of described connecting bolts respectively on two described junction steel plates; The two ends, left and right of described vault Curved beam and the upper end of two described haunch Curved beams are provided with a junction steel plate.
Scalable U-shaped steel bracket for above-mentioned high ground stress soft rock stress constructing tunnel is characterized in that: described clip comprises U font steel plate and be arranged on the high-strength bolt on U font steel plate, and described high-strength bolt is friction type high strength bolt; The equal lock ring of link between link between described haunch Curved beam and column Curved beam and column Curved beam and bottom Curved beam is between U font steel plate and described high-strength bolt.
Scalable U-shaped steel bracket for above-mentioned high ground stress soft rock stress constructing tunnel, it is characterized in that: described high-strength bolt comprises U-bolt and two nuts that respectively are arranged on U-bolt two ends of spiral-lock on U font steel plate, and the bolt mounting holes of installing for U-bolt is installed respectively at the two ends, left and right of described U font steel plate.
Scalable U-shaped steel bracket for above-mentioned high ground stress soft rock stress constructing tunnel is characterized in that: described haunch Curved beam is connected to form by a plurality of Curved beams one, and described bottom Curved beam is connected to form by a plurality of Curved beams two; Connected by the structure that removably connects between adjacent two described Curved beams one, connected by a plurality of described clips between adjacent two described Curved beams two.
Scalable U-shaped steel bracket for above-mentioned high ground stress soft rock stress constructing tunnel is characterized in that: the radius of described vault Curved beam and two described haunch Curved beams all identical and three forms a semi-circular arch; The radius of described column Curved beam is less than the radius of haunch Curved beam, and column Curved beam and haunch Curved beam phase inscribe; The radius of described bottom Curved beam is greater than the radius of haunch Curved beam, and bottom Curved beam and column Curved beam phase inscribe.
Scalable U-shaped steel bracket for above-mentioned high ground stress soft rock stress constructing tunnel is characterized in that: between described haunch Curved beam and column Curved beam and the lap length between described column Curved beam and bottom Curved beam be not less than 5cm.
Scalable U-shaped steel bracket for above-mentioned high ground stress soft rock stress constructing tunnel, it is characterized in that: the radius of described vault Curved beam and two described haunch Curved beams is 6.21m, the radius of two described column Curved beams is 2.71m, and the radius of described bottom Curved beam is 9.21m.
The utility model compared with prior art has the following advantages:
1, simple in structure and reasonable in design, it is convenient that processing and fabricating and installation are laid, and input cost is lower.
2, using method simple, operate simple and easy and realize convenient.
3, result of use is good, can effectively control the middle and high earthquake intensity rock burst of high-ground stress section and soft rock extruding large deformation.Scalability of the present utility model carries out regulation and control by the tightness of clip.In actual use procedure, carry out corresponding deformation under shoulder bed effects when the utility model, after the country rock geostatic stress reaches a certain degree, clip produces small relative slippage and makes the utility model integral body move down, thereby alleviate country rock to pressure of the present utility model, after scalability exhausts, the utility model becomes the rigid trestle carrying.To sum up, with other steelframe, compare, the utility model contractibility is large, processing and fabricating and simple installation, and, when it becomes rigid trestle, its resistance to compression, anti-twisting property are higher than common I-shaped steel frame.
4, popularizing application prospect is extensive, can effectively be suitable for to the constructing tunnel process of various high-ground stress area.
In sum, the utility model is simple in structure, reasonable in design, processing and fabricating and install simple and use easy and simple to handle, result of use good, can issue living corresponding deformation at shoulder bed effects, and be converted to all very high rigid supports of resistance to compression and anti-twisting property after can not deforming.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The connection status schematic diagram that Fig. 2 is the utility model clip.
The A-A sectional view that Fig. 3 is Fig. 2.
Fig. 4 is the removably connect connection status schematic diagram of structure of the utility model.
The syndeton schematic diagram that Fig. 5 is the utility model junction steel plate and U-shaped steel.
Description of reference numerals:
1-vault Curved beam; 2-haunch Curved beam; 3-column Curved beam;
4-bottom Curved beam; 5-clip; 5-1-U font steel plate;
5-2-U-bolt; 5-3-nut; 6-structure removably connects;
6-1-junction steel plate; 6-2-connecting bolt; 6-3-bolt hole;
7-lock foot anchoring stock; 8-U-shaped steel.
The specific embodiment
As shown in Figure 1, the utility model comprises that a vault Curved beam that is laid in constructed soft rock tunnel vault 1, two symmetries are laid in the haunch Curved beam 2 of vault Curved beam 1 below, the left and right sides, two symmetries and are laid in the column Curved beam 3 of haunch Curved beam 2 belows, the left and right sides and one and are connected in two bottom Curved beams 4 between described column Curved beam 3, described vault Curved beam 1 be laid in bottom Curved beam 4 directly over.Described vault Curved beam 1, haunch Curved beam 2, column Curved beam 3 and bottom Curved beam 4 are U-shaped steel 8.The described haunch Curved beam of described vault Curved beam 1, two 2, two described column Curved beams 3 and bottom Curved beam 4 are assemblied to form a full section supporting and protection structure of constructed soft rock tunnel being carried out to full section supporting, the structure of described full section supporting and protection structure and size all with section structure and the consistent size of place, institute's supporting position construction soft rock tunnel.
In the present embodiment, the junction between the junction between the junction between described vault Curved beam 1 and haunch Curved beam 2, haunch Curved beam 2 and column Curved beam 3 and column Curved beam 3 and bottom Curved beam 4 is provided with the lock foot anchoring stock 7 anchored in rock stratum.
During actual installation, between described haunch Curved beam 2 and column Curved beam 3 and between described column Curved beam 3 and bottom Curved beam 4, all by a plurality of clips 5, be connected, referred to Fig. 2 and Fig. 3.
In the present embodiment, the quantity of a plurality of described clips 5 is two.During practice of construction, can be according to specific needs, the quantity of clip 5 is adjusted accordingly.
During actual the connection, between described haunch Curved beam 2 and column Curved beam 3 and the lap length between described column Curved beam 3 and bottom Curved beam 4 be not less than 5cm.
In the present embodiment, between described haunch Curved beam 2 and column Curved beam 3 and the lap length between described column Curved beam 3 and bottom Curved beam 4 be 5cm.Actually add man-hour, can be according to specific needs, between described haunch Curved beam 2 and column Curved beam 3 and the lap length between described column Curved beam 3 and bottom Curved beam 4 adjust accordingly.
In the present embodiment, described clip 5 comprises U font steel plate 5-1 and be arranged on the high-strength bolt on U font steel plate 5-1, and described high-strength bolt is friction type high strength bolt.The equal lock ring of link between link between described haunch Curved beam 2 and column Curved beam 3 and column Curved beam 3 and bottom Curved beam 4 is between U font steel plate 5-1 and described high-strength bolt.
Described high-strength bolt comprises U-bolt 5-2 and two the nut 5-3s that respectively are arranged on U-bolt 5-2 two ends of spiral-lock on U font steel plate 5-1, and the bolt mounting holes of installing for U-bolt 5-2 is installed respectively at the two ends, left and right of described U font steel plate 5-1.During actual the use, the connected mode of described high-strength bolt is friction-type connection.
In the present embodiment, in described clip 5, the quantity of included described high-strength bolt is two.
In conjunction with Fig. 4, Fig. 5, in the present embodiment, between described vault Curved beam 1 and two described haunch Curved beams 2, all by the structure 6 that removably connects, be connected, the described structure 6 that removably connects comprises two junction steel plate 6-1 that are parallel laying, be fastenedly connected by a plurality of connecting bolt 6-2 between two described junction steel plate 6-1, and all had a plurality of bolt hole 6-3 that install for a plurality of described connecting bolt 6-2 respectively on two described junction steel plate 6-1.The two ends, left and right of described vault Curved beam 1 and the upper end of two described haunch Curved beams 2 are provided with a junction steel plate 6-1.
In the present embodiment, described haunch Curved beam 2 is connected to form by a plurality of Curved beams one, and described bottom Curved beam 4 is connected to form by a plurality of Curved beams two.Connected by the structure 6 that removably connects between adjacent two described Curved beams one, connected by a plurality of described clips 5 between adjacent two described Curved beams two.During actual installation, the lap length between adjacent two described Curved beams two is not less than 5cm.
Actually add man-hour, the radius of described vault Curved beam 1 and two described haunch Curved beams 2 all identical and three forms a semi-circular arch.The radius of described column Curved beam 3 is less than the radius of haunch Curved beam 2, and column Curved beam 3 and haunch Curved beam 2 phase inscribes; The radius of described bottom Curved beam 4 is greater than the radius of haunch Curved beam 2, and bottom Curved beam 4 and column Curved beam 3 phase inscribes.
In the present embodiment, the radius of described vault Curved beam 1 and two described haunch Curved beams 2 is 6.21m, and the radius of two described column Curved beams 3 is 2.71m, and the radius of described bottom Curved beam 4 is 9.21m.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification of above embodiment being done according to the utility model technical spirit, change and equivalent structure change, and all still belong in the protection domain of technical solutions of the utility model.
Claims (10)
1. a scalable U-shaped steel bracket for the high ground stress soft rock stress constructing tunnel, it is characterized in that: comprise that a vault Curved beam (1) that is laid in constructed soft rock tunnel vault, two symmetries are laid in column Curved beam (3) and a bottom Curved beam (4) be connected between two described column Curved beams (3) that the haunch Curved beam (2) of below, vault Curved beam (1) left and right sides, two symmetries are laid in below, haunch Curved beam (2) left and right sides, bottom described vault Curved beam (1) is laid in Curved beam (4) directly over; Described vault Curved beam (1), haunch Curved beam (2), column Curved beam (3) and bottom Curved beam (4) are U-shaped steel (8); Described vault Curved beam (1), two described haunch Curved beams (2), two described column Curved beams (3) and bottom Curved beam (4) are assemblied to form a full section supporting and protection structure of constructed soft rock tunnel being carried out to full section supporting, the structure of described full section supporting and protection structure and size all with section structure and the consistent size of place, institute's supporting position construction soft rock tunnel.
2. according to scalable U-shaped steel bracket for high ground stress soft rock stress constructing tunnel claimed in claim 1, it is characterized in that: the junction between the junction between the junction between described vault Curved beam (1) and haunch Curved beam (2), haunch Curved beam (2) and column Curved beam (3) and column Curved beam (3) and bottom Curved beam (4) is provided with the lock foot anchoring stock (7) anchored in rock stratum.
3. according to claim 1 or 2 scalable U-shaped steel bracket for described high ground stress soft rock stress constructing tunnel, it is characterized in that: between described haunch Curved beam (2) and column Curved beam (3) and between described column Curved beam (3) and bottom Curved beam (4), all by a plurality of clips (5), be connected.
4. according to scalable U-shaped steel bracket for high ground stress soft rock stress constructing tunnel claimed in claim 3, it is characterized in that: between described vault Curved beam (1) and two described haunch Curved beams (2), all by the structure that removably connects (6), be connected, the described structure that removably connects (6) comprises two junction steel plates (6-1) that are parallel laying, between two described junction steel plates (6-1), by a plurality of connecting bolts (6-2), be fastenedly connected, and all have a plurality of bolts hole (6-3) that supply respectively a plurality of described connecting bolts (6-2) to install on two described junction steel plates (6-1), the upper end of the two ends, left and right of described vault Curved beam (1) and two described haunch Curved beams (2) is provided with a junction steel plate (6-1).
5. according to scalable U-shaped steel bracket for high ground stress soft rock stress constructing tunnel claimed in claim 3, it is characterized in that: described clip (5) comprises U font steel plate (5-1) and is arranged on the high-strength bolt on U font steel plate (5-1), and described high-strength bolt is friction type high strength bolt; The equal lock ring of link between link between described haunch Curved beam (2) and column Curved beam (3) and column Curved beam (3) and bottom Curved beam (4) is between U font steel plate (5-1) and described high-strength bolt.
6. according to scalable U-shaped steel bracket for high ground stress soft rock stress constructing tunnel claimed in claim 5, it is characterized in that: described high-strength bolt comprises U-bolt (5-2) and two nuts (5-3) that respectively are arranged on U-bolt (5-2) two ends of spiral-lock on U font steel plate (5-1), and the bolt mounting holes of installing for U-bolt (5-2) is installed respectively at the two ends, left and right of described U font steel plate (5-1).
7. according to scalable U-shaped steel bracket for high ground stress soft rock stress constructing tunnel claimed in claim 4, it is characterized in that: described haunch Curved beam (2) is connected to form by a plurality of Curved beams one, and described bottom Curved beam (4) is connected to form by a plurality of Curved beams two; Connected by the structure that removably connects (6) between adjacent two described Curved beams one, connected by a plurality of described clips (5) between adjacent two described Curved beams two.
8. according to claim 1 or 2 scalable U-shaped steel bracket for described high ground stress soft rock stress constructing tunnel, it is characterized in that: the radius of described vault Curved beam (1) and two described haunch Curved beams (2) all identical and three forms a semi-circular arch; The radius of described column Curved beam (3) is less than the radius of haunch Curved beam (2), and column Curved beam (3) and haunch Curved beam (2) phase inscribe; The radius of described bottom Curved beam (4) is greater than the radius of haunch Curved beam (2), and bottom Curved beam (4) and column Curved beam (3) phase inscribe.
9. according to scalable U-shaped steel bracket for high ground stress soft rock stress constructing tunnel claimed in claim 3, it is characterized in that: between described haunch Curved beam (2) and column Curved beam (3) and the lap length between described column Curved beam (3) and bottom Curved beam (4) be not less than 5cm.
10. according to scalable U-shaped steel bracket for high ground stress soft rock stress constructing tunnel claimed in claim 8, it is characterized in that: the radius of described vault Curved beam (1) and two described haunch Curved beams (2) is 6.21m, the radius of two described column Curved beams (3) is 2.71m, and the radius of described bottom Curved beam (4) is 9.21m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320372913 CN203362178U (en) | 2013-06-27 | 2013-06-27 | Telescopic U-type steel support for high ground stress soft rock tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320372913 CN203362178U (en) | 2013-06-27 | 2013-06-27 | Telescopic U-type steel support for high ground stress soft rock tunnel construction |
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| Publication Number | Publication Date |
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| CN203362178U true CN203362178U (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320372913 Expired - Lifetime CN203362178U (en) | 2013-06-27 | 2013-06-27 | Telescopic U-type steel support for high ground stress soft rock tunnel construction |
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| CN (1) | CN203362178U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953360A (en) * | 2014-04-18 | 2014-07-30 | 湖南科技大学 | U-shaped steel and anchor cable collaborated support structure for laneway with large-deformation deep part |
| CN105604583A (en) * | 2016-03-07 | 2016-05-25 | 河南理工大学 | Contractible mining U-shaped steel support couplable to anchor bolts |
| CN105888700A (en) * | 2016-06-16 | 2016-08-24 | 中交四航局第二工程有限公司 | Telescopic steel frame joint suitable for large tunnel deformation |
| CN106837372A (en) * | 2017-03-16 | 2017-06-13 | 中铁二院工程集团有限责任公司 | It is a kind of quickly repaired suitable for tunnel and large deformation tunnel flexible support system |
-
2013
- 2013-06-27 CN CN 201320372913 patent/CN203362178U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953360A (en) * | 2014-04-18 | 2014-07-30 | 湖南科技大学 | U-shaped steel and anchor cable collaborated support structure for laneway with large-deformation deep part |
| CN103953360B (en) * | 2014-04-18 | 2016-06-29 | 湖南科技大学 | A kind of U-shaped steel for deep roadway with large deformation and the collaborative supporting construction of anchor cable |
| CN105604583A (en) * | 2016-03-07 | 2016-05-25 | 河南理工大学 | Contractible mining U-shaped steel support couplable to anchor bolts |
| CN105888700A (en) * | 2016-06-16 | 2016-08-24 | 中交四航局第二工程有限公司 | Telescopic steel frame joint suitable for large tunnel deformation |
| CN105888700B (en) * | 2016-06-16 | 2018-06-19 | 中交第四航务工程局有限公司 | A kind of scalable steelframe connector suitable for serious deformation |
| CN106837372A (en) * | 2017-03-16 | 2017-06-13 | 中铁二院工程集团有限责任公司 | It is a kind of quickly repaired suitable for tunnel and large deformation tunnel flexible support system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20131225 |