CN209523770U - A kind of slip casting combination of steel rope device - Google Patents
A kind of slip casting combination of steel rope device Download PDFInfo
- Publication number
- CN209523770U CN209523770U CN201920079591.4U CN201920079591U CN209523770U CN 209523770 U CN209523770 U CN 209523770U CN 201920079591 U CN201920079591 U CN 201920079591U CN 209523770 U CN209523770 U CN 209523770U
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- China
- Prior art keywords
- strand wires
- steel strand
- steel
- slip casting
- snorkel
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Abstract
The utility model belongs to underground coal mine large section roadway secondary supporting field, specifically related to a kind of slip casting combination of steel rope device, including guiding cap and steel strand wires, the fixed tail end for being connected to guiding cap of the head end of steel strand wires, that fixes on steel strand wires is equipped with multiple support frames, and support frame is uniformly distributed along steel strand wires length direction, and steel strand wires are divided into anchoring section and tensioning section, plastic flexible pipe is respectively installed in the tensioning section of steel strand wires, the head end of plastic flexible pipe is fixed on steel strand wires using tied silk；Snorkel is provided between steel strand wires, snorkel is more slightly longer than steel strand wires；Grouting Pipe is additionally provided between the steel strand wires of tensioning section.The technical solution of the utility model is by designing a kind of combination of steel rope, four steel strand wires are connected to guiding cap tail end simultaneously, substantially increase the stress intensity of combination of steel rope, snorkel is provided between four steel strand wires, the inner end of snorkel is located at guiding cap tail end, the air in drilling can be discharged when slip casting, while the instruction device that snorkel can also be completed as slip casting.
Description
Technical field
The utility model belongs to underground coal mine large section roadway secondary supporting field, and in particular to combines anchor to a kind of slip casting
Rope device.
Background technique
Currently, after single anchor cable loading drilling is usually used, being injected using high pressure in coal mine down-hole tunnel field of reinforcement
Cement slurry.Pretightning force is applied to anchor cable after the solidification of slip casting section, makes the multidirectional compression of country rock, improves stress state, improves country rock
Resistance to deformation damage capability；Meanwhile combination of steel rope plays suspention and combination beam action, and unstable formation around tunnel is anchored at depth
Stablize in rock stratum in portion.Grouting reinforcement technique is broken country rock consolidation to be got up, using the crack in slurries filling country rock to change
Kind surrounding rock structure strengthens Surrounding Rock Strength and improves its mechanical property keeping enclosing steady to increase the bearing capacity of country rock not holding any government official post
It is qualitative.
As coal mining depth increases, crustal stress is gradually increased, and fully-mechanized mining equipment size is also gradually increased, after equipment enters well
Solution body component increases, and underground assembles difficulty and increases, and dedicated big cross section assembling chamber need to be created, especially for support resistance
10000KN assembles chamber width in 6m or more, so big section adds 800m with deep buried depth again, commonly with upper bracket
Support pattern has been unable to maintain that stability of the roadway, needs multiple supporting that can make stability of the roadway.
Utility model content
The main purpose of the utility model is to provide a kind of slip casting combination of steel rope device, with solve existing technology because of anchor cable or
Roadway surrounding rock caused by grouting cable anchor anchorage depth is inadequate, anchor force is insufficient and deep rock stratum absciss layer, ultimately cause tunnel unstability
Property destroy the problem of.
To achieve the goals above, the utility model provides a kind of slip casting combination of steel rope device, including guiding cap and steel
Twisted wire, steel strand wires are fixed to be connected on the tail end of guiding cap, and the steel strand wires have at least three, what the head end of steel strand wires was fixed
It is connected to the tail end of guiding cap, that fixes on steel strand wires is equipped with multiple support frames, and support frame is equal along steel strand wires length direction
Cloth, steel strand wires are divided into anchoring section and tensioning section, are respectively installed with plastic flexible pipe in the tensioning section of every steel strand wires, plastic flexible pipe
Head end is fixed on steel strand wires using tied silk；Snorkel is provided between steel strand wires, snorkel is more slightly longer than steel strand wires；In tensioning
Grouting Pipe is additionally provided between the steel strand wires of section.
Further, the guiding cap includes tapered portion and cylindrical portion, and the tapered portion of guiding cap is head end, and cylindrical portion is tail
End.
Further, the anchoring depth of the steel strand wires is 2-2.3 times of tensioning segment length.
Further, the quantity identical as steel strand wires that support frame as described above includes center ring and is uniformly welded on center ring
Reinforcing bar, the reinforcing bar of steel strand wires and support frame fixed by tied silk.
A method of it is constructed using slip casting combination of steel rope device, comprising the following steps:
It drills in step 1, the lane wall between adjacent once supporting bar；
Combination of steel rope is placed in drilling by step 2, checks whether snorkel is unimpeded；
Step 3 is sealed hell, then injects the mixed liquor of cement and waterglass into drilling by Grouting Pipe
Slurry；
It is stood after the completion of step 4, slip casting, makes even on the lane wall after solidification at injected hole and anchor cable pallet is installed, and to anchor
Suo Jinhang tensioning.
Further, the diameter to drill in the step 1 is 75~94mm, and drilling depth is 12m~20m.
Further, the step 2 specifically: wash with water rock powder in hole, combination of steel rope is manually pushed into bottom hole, push
Exhaust pipe is not damaged in the process and covers the plastic flexible pipe in anchor element tensioning section, and combination of steel rope will check exhaust after being pushed into bottom hole
It whether unimpeded manages.
Further, it after the combination of steel rope promotes, is sealed around hell using cement slurry, snorkel and slip casting
The outer end indwelling of pipe is external in drilling；Cement uses 42.5 ordinary portland cements, and waterglass uses M=2.4~3.2, P=35-
45 ° of Be alkalinity waterglass, grouting pressure control stop slip casting in 4-8MP, when until slurries being discharged in exhaust pipe.
Further, the step 4 specifically: it is levelling and anchor cable pallet is installed around drilling after slip casting 7 days, then
Tensioning is carried out using jack pair combination of steel rope, tensioning should be grouped circulation by root and carry out, and the single final tensioning pretightning force of anchor cable is not
Less than 120KN.
Further, the anchor cable pallet is made of channel steel, and anchor cable pallet includes bottom plate and two side plates, anchor cable pallet
Bottom plate on be provided with anchor cable hole corresponding with combination of steel rope.
The beneficial effects of the utility model are: the technical solution of the utility model is by designing a kind of combination of steel rope, by four
Root steel strand wires are connected to guiding cap tail end simultaneously, substantially increase the stress intensity of combination of steel rope, are set in the tail end of steel strand wires
Have plastic flexible pipe, can effectively prevent steel strand wires in stretching process with damage caused by borehole friction, in four steel strand wires
Between be provided with snorkel, the inner end of snorkel is located at guiding cap tail end, can arrange the air in drilling when slip casting
Completely, while snorkel can also be as the instruction device of slip casting completion.
The slip casting combination of steel rope that the technical solution of the utility model is formed by using the high-strength anchor cable of 4 12~20m of root long degree
Deeper inside rock stress state can be improved, and roadway surrounding rock is closely anchored at deep and is stablized on rock stratum；Then pass through
Breaking surrounding rock is consolidated, increases country rock not holding any government official post bearing capacity by high-pressure slip-casting.Finally, roadway surrounding rock is reduced because breaking caused by unstability
It is bad, so that it is guaranteed that the stability in tunnel.
Detailed description of the invention
In the accompanying drawings:
Fig. 1 is the combination of steel rope side structure schematic diagram of the utility model；
Fig. 2 is the support frame structure diagram of the utility model；
Fig. 3 is the support frame side structure schematic view of the utility model；
Fig. 4 is the construction location structural schematic diagram of the utility model；
Fig. 5 is the anchor cable tray structure diagram of the utility model；
Fig. 6 is the combined lockset structural schematic diagram of the utility model；
In figure, 1 is guiding cap, and 2 be support frame, and 201 be center ring, and 202 be reinforcing bar, and 3 be steel strand wires, and 4 be snorkel, 5
It is Grouting Pipe for plastic flexible pipe, 6,7 be combination of steel rope, and 8 be lane wall, and 9 be once supporting bar, and 10 be ditch, and 11 be side plate, and 12 are
Anchor cable hole, 13 be bottom plate, and 14 be anchor cable lock, and 15 be lockset hole.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The application protection all should belong in technical staff's every other embodiment obtained without making creative work
Range.
It should be noted that term " level-one " in the specification and claims of the utility model and above-mentioned attached drawing,
" second level " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that in this way
The term used is interchangeable under appropriate circumstances, so as to the embodiments of the present invention described herein.In addition, term " packet
Include " and " having " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing series of steps
Or the process, method, system, product or equipment of unit those of are not necessarily limited to be clearly listed step or unit, but can wrap
Include other step or units being not clearly listed or intrinsic for these process, methods, product or equipment.
As shown in figs 1 to 6, by taking four steel strand wires as an example, a kind of slip casting combination of steel rope device, including guiding cap 1 and steel are twisted
Line 3, steel strand wires 3 are fixed to be connected on the tail end of guiding cap 1, and guiding cap 1 includes tapered portion and cylindrical portion, the cone of guiding cap 1
Shape portion is head end, and cylindrical portion is tail end.Steel strand wires 3 have four, and what the head end of four steel strand wires 3 was fixed is connected to guiding cap 1
Tail end, that fixes on four steel strand wires 3 is equipped with multiple support frames 2, and support frame 2 is uniformly distributed along steel strand wires length direction, is connected
Two support frames 2 between be spaced 2m, steel strand wires 3 divide for anchoring section and tensioning section, cover respectively in the tensioning section of four steel strand wires 3
Equipped with plastic flexible pipe 5, the head end of plastic flexible pipe 5 is fixed on steel strand wires 3 using tied silk；Ventilation is provided between steel strand wires 3
Pipe 4, snorkel 4 are arranged in parallel with steel strand wires 3, and snorkel 4 is more slightly longer than steel strand wires 3；It is also set up between the steel strand wires 3 of tensioning section
There is Grouting Pipe 6.
In the present embodiment, the anchoring depth of steel strand wires 3 is 2-2.3 times of tensioning segment length, here in embodiment,
A length of 16 meters of steel strand wires, a length of 11m of the anchoring section of steel strand wires 3, the length of tensioning section is 5m.Support frame 2 includes 201 He of center ring
Four reinforcing bars 202 being uniformly welded on center ring 201, steel strand wires 3 and the reinforcing bar 202 of support frame are fixed by tied silk.
17.8~21.8mm of diameter of steel strand wires 3, length 12m~20m of steel strand wires 3, the length and diameter root of steel strand wires 3
Stablize rock stratum according to roadway surrounding rock property, apart from deep depending on.Combination of steel rope further includes an anchor rope supporting plate, and anchor rope supporting plate is used
Steel strand wires 3 are fixed after to 3 tensioning section tensioning of steel strand wires.
A kind of construction method of slip casting combination of steel rope device, including on step 1, the lane wall between adjacent once supporting bar
It is drilled using hydraulic drill rig；Once supporting bar is made of high strength resin bolt in step 1, is consolidated to tunnel shallow-layer palisades
Fixed, once supporting bar can only safeguard the shallow rock stratum within 4m, and the diameter to drill in step 1 is 75~94mm, drilling depth 12m
The quantity of~20m, drilling are set according to demand, and a drilling or two are arranged between adjacent once supporting bar under normal circumstances
Drilling.
Combination of steel rope is placed in drilling by step 2, checks whether snorkel is unimpeded；Specifically: wash with water hole Nei Yan
Powder, is manually pushed into bottom hole for combination of steel rope, and the plastics that exhaust pipe is not damaged during push and is covered in anchor element tensioning section are soft
Pipe, combination of steel rope will check whether exhaust pipe is unimpeded after being pushed into bottom hole.
Step 3 is sealed hell, then utilizes high-pressure injection pump, and cement and waterglass are injected into drilling
Mix slurry；Specifically: after combination of steel rope promotes, it is sealed around hell using cement slurry, snorkel and Grouting Pipe
Outer end indwelling is external in drilling；Cement uses 42.5 ordinary portland cements, and waterglass uses M=2.4~3.2, P=35-45 ° of Be
Alkaline waterglass, grouting pressure control stop slip casting in 4-8MP, when until slurries being discharged in exhaust pipe.
7 days are stood after the completion of step 4, slip casting, makes even on the lane wall after standing at injected hole and anchor cable pallet is installed, and benefit
Tensioning is carried out with jack pair anchor cable；Specifically: it is levelling and anchor cable pallet is installed around drilling after slip casting 7 days, then utilize
Jack pair combination of steel rope carries out tensioning, and tensioning should be grouped circulation by root and carry out, and the single final tensioning pretightning force of anchor cable is not less than
120KN。
Anchor cable pallet is made of channel steel, and anchor cable pallet includes bottom plate 13 and two side plates 11, the bottom plate 12 of anchor cable pallet
On be provided with anchor cable hole 12 corresponding with combination of steel rope, anchor cable lock 14 is installed on anchor cable pallet, anchor cable lock 14 is used for
Four steel strand wires after tensioning are fixed.
The application is described in detail above, it is used herein can principle and embodiment party of the specific case to the application
Formula is expounded, the description of the example is only used to help understand the method for the present application and its core ideas, meanwhile, it is right
In those of ordinary skill in the art, according to the thought of the application, change is had in specific embodiments and applications
Place, in conclusion the contents of this specification should not be construed as limiting the present application.
Claims (4)
1. a kind of slip casting combination of steel rope device, including guiding cap and steel strand wires, the fixed tail end for being connected to guiding cap of steel strand wires
On, it is characterised in that: the steel strand wires have at least three, the fixed tail end for being connected to guiding cap of the head end of steel strand wires, in steel
That fixes on twisted wire is equipped with multiple support frames, and support frame is uniformly distributed along steel strand wires length direction, and steel strand wires are divided into anchoring section and open
Section is drawn, plastic flexible pipe is respectively installed in the tensioning section of every steel strand wires, the head end of plastic flexible pipe is fixed on steel strand using tied silk
On line；Snorkel is provided between steel strand wires, snorkel is more slightly longer than steel strand wires；It is additionally provided between the steel strand wires of tensioning section
Grouting Pipe.
2. slip casting combination of steel rope device according to claim 1, it is characterised in that: the guiding cap includes tapered portion and column
The tapered portion in shape portion, guiding cap is head end, and cylindrical portion is tail end.
3. slip casting combination of steel rope device according to claim 1, it is characterised in that: the anchoring depth of the steel strand wires is
2-2.3 times of tensioning segment length.
4. slip casting combination of steel rope device according to claim 1, it is characterised in that: support frame as described above include center ring and
The reinforcing bar of the reinforcing bar of the even quantity identical as steel strand wires being welded on center ring, steel strand wires and support frame is fixed by tied silk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920079591.4U CN209523770U (en) | 2019-01-17 | 2019-01-17 | A kind of slip casting combination of steel rope device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920079591.4U CN209523770U (en) | 2019-01-17 | 2019-01-17 | A kind of slip casting combination of steel rope device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209523770U true CN209523770U (en) | 2019-10-22 |
Family
ID=68229499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920079591.4U Expired - Fee Related CN209523770U (en) | 2019-01-17 | 2019-01-17 | A kind of slip casting combination of steel rope device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209523770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681252A (en) * | 2019-01-17 | 2019-04-26 | 平顶山平煤设计院有限公司 | A kind of slip casting combination of steel rope device and construction method |
-
2019
- 2019-01-17 CN CN201920079591.4U patent/CN209523770U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681252A (en) * | 2019-01-17 | 2019-04-26 | 平顶山平煤设计院有限公司 | A kind of slip casting combination of steel rope device and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191022 Termination date: 20210117 |