CN203783594U - U-type steel-anchor cable collaborative support structure used for deep large-deformation tunnel - Google Patents
U-type steel-anchor cable collaborative support structure used for deep large-deformation tunnel Download PDFInfo
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- CN203783594U CN203783594U CN201420189798.4U CN201420189798U CN203783594U CN 203783594 U CN203783594 U CN 203783594U CN 201420189798 U CN201420189798 U CN 201420189798U CN 203783594 U CN203783594 U CN 203783594U
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- shaped steel
- type steel
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- anchor cable
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Abstract
The utility model discloses a U-type steel-anchor cable collaborative support structure used for a deep large-deformation tunnel. The U-type steel-anchor cable collaborative support structure used for the deep large-deformation tunnel comprises a first U-type steel section, a second U-type steel section, an anchor cable, a channel steel block and a base plate, wherein one end of the first U-type steel section and the two ends of the second U-type steel section are provided with rectangular holes of he same specifications; the middle of the channel steel block and the middle of the base plate are provided with round holes which are the same as the anchor cable in diameter; the first U-type steel section and the second U-type steel section are stacked; the rectangular hole in one end of the first U-type steel section and the rectangular hole in one end of the second U-type steel section are overlapped; the first U-type steel section and the second U-type steel section are fixed through clamping cables; the opening of the channel steel block is reversely buckled on the opening in the overlapped position of the first U-type steel section and the second U-type steel section; the anchor cable penetrates through the channel steel block, the first U-type steel section, the second U-type steel section and the base plate to be fixed. The U-type steel-anchor cable collaborative support structure used for the deep large-deformation tunnel not only is simple in structure and convenient to use, but also improves the intensity of a support, is not prone to being damaged on the whole and is long in service life.
Description
Technical field
The utility model belongs to engineering construction and application, particularly the collaborative supporting and protection structure of a kind of U-shaped steel-anchor cable for deep, mine roadway with large deformation.
Background technology
U-shaped steel bracket refers to that multiple U-shaped steel sections interconnect by metal connecting piece each other, forms half (entirely) closed metal support matching with cross-section shape of roadway.Simple in structure because of it, functional, convenient and practical, moderate and be widely used.
At present, in roadway and geotechnical engineering supporting construction, by U-shaped steel metal connecting device, the U-shaped steel section that head and the tail stack has between two been overlapped is formed by fixedly connecting, and this support pattern has stronger compliance in well lane engineering., along with the continuous increase of mining depth, deep tunnel country rock presents the feature of large deformation, and this large deformation is mainly because the pernicious expansion of the creep expansion of border, roadway surrounding rock plastic zone and plastic zone under high stress causes.Traditional support pattern, as inadequate in support pattern or the supporting intensity of anchor pole, anchor cable, U-shaped steel and combination thereof, or be to be not suitable with surrouding rock deformation, yielding property can be not, and major part ends in failure.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of a kind of U-shaped steel-anchor cable for deep roadway with large deformation simple in structure, esy to use, safe and reliable to work in coordination with supporting and protection structure.
The technical scheme that the utility model addresses the above problem is: comprise the first U-shaped steel section, the second U-shaped steel section, anchor cable, card cable, channel-section steel piece, backing plate, the two ends of one end of described the first U-shaped steel section and the second U-shaped steel section have the rectangular opening of same specification, described channel-section steel piece, the middle part of backing plate has and the isodiametric circular port of anchor cable, the first U-shaped steel section and the second U-shaped steel section are stacked, the rectangular opening of the rectangular opening of first U-shaped steel section one end and second U-shaped steel section one end is overlapping, fix the first U-shaped steel section and the second U-shaped steel section with card cable, channel-section steel piece opening left-hand thread is on the opening of the first U-shaped steel section and the second U-shaped steel section overlapping, anchor cable is passed to channel-section steel piece, the first U-shaped steel section, the second U-shaped steel section and backing plate are also fixing.
The collaborative supporting and protection structure of the above-mentioned U-shaped steel-anchor cable for deep roadway with large deformation, described channel-section steel piece inside groove is than the wide 50-80mm of U-shaped steel opening.
The beneficial effects of the utility model are:
One, one section of channel-section steel is placed in the first U-shaped steel section, the second UXing Gangduan lap-joint by the utility model, and anchor cable enters boring through rectangular steel plates, support rectangular opening and channel-section steel to carry out anchoring and form supporting and protection structure.That the supporting and protection structure forming has is simple in structure, cost is low, processing and the feature such as easy to use;
Two, the utility model has not only ensured the retractility of U-shaped steel bracket, is also used in conjunction with high strength anchor cable, has given full play to the advantage separately of U-shaped steel section and anchor cable, has both brought into play that U-shaped steel can contract and the effect of high rigidity, has embodied again the effect of the high supporting power of anchor cable.Therefore, the supporting intensity that the utility model obtains is higher, is a kind of support form reliably to deep roadway with large deformation;
Three, the utility model combines channel-section steel, U-shaped steel, flat plate steel form a kind of brute force and can allow the effect member of pressing, first, the use of channel-section steel both can increase support action area, simultaneously, when anchor cable bearing capacity exceedes the load that U-shaped steel bracket cross-sectional direction can bear, U-shaped steel both sides can be from line slip.And when U-shaped steel both sides slide past the prevention that distance exceedes certain distance and can be subject to channel-section steel both wings, the phenomenon such as can stop U-shaped steel that splitting occurs under high stress or to crush; Secondly, the cooperation of channel-section steel piece has improved the resistance to overturning of U-shaped steel, has improved the stress of anchor cable.Therefore, this U-shaped steel-cable bolting has formed the forceful action of inside and outside carrying, has greatly improved the intensity of supporting, is not easy to produce entirety and damages, long service life.
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Brief description of the drawings
Fig. 1 is explosive view of the present utility model.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is construction schematic diagram of the present utility model.
Fig. 4 is complete support form schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1, the utility model comprises channel-section steel piece 1, the first U-shaped steel section 2, the second U-shaped steel section 3, card cable 4, anchor cable 5, backing plate 6.In described the first U-shaped steel section 2 and the second U-shaped steel section 3, corresponding position offers rectangular opening 21,31, pass through for anchor cable 5, with card cable 6, by the first U-shaped steel section 1 and the second U-shaped steel section 2 fixations, channel-section steel piece 1 is placed in rectangular opening behind, and backing plate 6 is positioned at U-shaped steel and anchor cable 5 lockset contact positions.
As shown in Figure 3, the middle part of channel-section steel piece 1 and backing plate 6 has and the isodiametric circular port 11,61 of anchor cable, channel-section steel piece 1 opening left-hand thread is on the opening of the first U-shaped steel section 2 and the second U-shaped steel section 3 overlappings, U-shaped steel opening two outers and channel-section steel two joints, bottom, outer, channel-section steel piece 1 inside groove is than the wide 50-80mm of first and second U-shaped steel section opening.
Implementation process of the present utility model is as follows:
The first step: channel-section steel is processed into the piece of moderate length, then according to anchor cable diameter, at middle position, bottom surface making circular hole;
Second step: rectangular opening (hole width is suitable with anchor cable diameter) is opened in first U-shaped steel section one end, and the rectangular opening with the first U-shaped steel section same specification is all offered at the second U-shaped steel section two ends;
The 3rd step: in the installation process of down-hole, first the section of stack is superposeed mutually, the fixation of card cable, is then put into position by channel-section steel piece, backing plate, runs through fixation immediately with anchor pole rope.
The utility model is fully coupled the advantage of anchor cable, U-shaped steel, the forceful action of (anchor end of anchorage cable) outer (forceful action member that channel-section steel, U-shaped steel, flat plate steel and lockset form) carrying in having formed, can utilize high strength, high pretightning force anchor cable active support restriction tunnel initial deformation at the roadway excavation initial stage, coordination stress is adjusted, effectively bring into play early the effect of the Rigidity and strength of U-shaped steel bracket, keep the stable of roadway surrounding rock.This support not only has the advantages such as simple in structure, easy to use and long service life, and this U-shaped steel bracket can make full use of channel-section steel section waste and old in Mineral Engineering.The channel-section steel section that these are waste and old, after simple and easy perforate, gets final product practical application, without other complicated procedures.
Claims (2)
1. the collaborative supporting and protection structure of the U-shaped steel-anchor cable for deep roadway with large deformation, it is characterized in that: comprise the first U-shaped steel section, the second U-shaped steel section, anchor cable, card cable, channel-section steel piece, backing plate, the two ends of one end of described the first U-shaped steel section and the second U-shaped steel section have the rectangular opening of same specification, described channel-section steel piece, the middle part of backing plate has and the isodiametric circular port of anchor cable, the first U-shaped steel section and the second U-shaped steel section are stacked, the rectangular opening of the rectangular opening of first U-shaped steel section one end and second U-shaped steel section one end is overlapping, fix the first U-shaped steel section and the second U-shaped steel section with card cable, channel-section steel piece opening left-hand thread is on the opening of the first U-shaped steel section and the second U-shaped steel section overlapping, anchor cable is passed to channel-section steel piece, the first U-shaped steel section, the second U-shaped steel section and backing plate are also fixing.
2. the collaborative supporting and protection structure of the U-shaped steel-anchor cable for deep roadway with large deformation as claimed in claim 1, is characterized in that: described channel-section steel piece inside groove is than the wide 50-80mm of U-shaped steel opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420189798.4U CN203783594U (en) | 2014-04-18 | 2014-04-18 | U-type steel-anchor cable collaborative support structure used for deep large-deformation tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420189798.4U CN203783594U (en) | 2014-04-18 | 2014-04-18 | U-type steel-anchor cable collaborative support structure used for deep large-deformation tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783594U true CN203783594U (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420189798.4U Withdrawn - After Issue CN203783594U (en) | 2014-04-18 | 2014-04-18 | U-type steel-anchor cable collaborative support structure used for deep large-deformation tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783594U (en) |
Cited By (1)
| 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 |
-
2014
- 2014-04-18 CN CN201420189798.4U patent/CN203783594U/en not_active Withdrawn - After Issue
Cited By (2)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140820 Effective date of abandoning: 20160629 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |