CN106014450B - A kind of steel pipe concrete hollow bracket and its construction method - Google Patents
A kind of steel pipe concrete hollow bracket and its construction method Download PDFInfo
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- CN106014450B CN106014450B CN201610533640.8A CN201610533640A CN106014450B CN 106014450 B CN106014450 B CN 106014450B CN 201610533640 A CN201610533640 A CN 201610533640A CN 106014450 B CN106014450 B CN 106014450B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 308
- 239000010959 steel Substances 0.000 title claims abstract description 308
- 239000004567 concrete Substances 0.000 title claims abstract description 147
- 238000010276 construction Methods 0.000 title claims abstract description 18
- 229920001971 elastomer Polymers 0.000 claims abstract description 95
- 125000006850 spacer group Chemical group 0.000 claims abstract description 25
- 239000000843 powder Substances 0.000 claims abstract description 20
- 239000002131 composite material Substances 0.000 claims abstract description 6
- 239000011083 cement mortar Substances 0.000 claims abstract description 5
- 239000000758 substrate Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 62
- 238000000034 method Methods 0.000 claims description 20
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 239000008107 starch Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 13
- 239000011150 reinforced concrete Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010920 waste tyre Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 229920002209 Crumb rubber Polymers 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 210000000003 hoof Anatomy 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000010092 rubber production Methods 0.000 description 1
- 239000010117 shenhua Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a kind of steel pipe concrete hollow bracket and its construction methods, belong to geotechnical engineering field, be able to ascend antidetonation, allow compressive strain and bear dynamic load ability, and reduce concrete usage amount.The steel pipe concrete bracket includes: the connecting sleeve of steel tube component, rubber concrete and the connection steel tube component, and the steel pipe concrete bracket is equipped with gas vent and injected hole；Wherein, the steel tube component includes support arm steel pipe and hollow inner support steel pipe, and the support arm steel pipe is connected with the inner support steel pipe by one or more spacer bars, and the support arm steel pipe and the inner support steel pipe are maintained at concentric relative position；The rubber concrete is uniformly to mix various discrete rubber powders or rubber grain and the cement-base composite material that is formed, and between the support arm steel pipe being placed in the steel tube component and inner support steel pipe using concrete or cement mortar as substrate.The present invention is for carrying out supporting.
Description
Technical field
The present invention relates to geotechnical engineering field, in particular to a kind of steel pipe concrete hollow bracket and its construction method.
Background technique
In existing underground engineering support mode, steel pipe concrete bracket as a kind of highly effective supporting construction,
New river in Shangdong Province Hua Feng coal mine, Longkou Bei Zaokuang, Xingtai Xing Dong Kuang, Tonghua eight treasures (choice ingredients of certain special dishes) mine, new Ji Kou throws in Hai Miao Chang Chengkuang, Huainan state on Inner Mongol
The peaceful coal clear water of diligent Dong Kuang, Shenhua is sought in tunnel, chamber or the tunnel support of the mines such as mine, Pingliang, Gansu Xin'an colliery, excellent branch
Shield performance engineering in practice to fully examining.
But it is big for pressure from surrounding rock, deflection is big, deformation time is long, there are the tunnel of dynamic pressure, oil cellar, water seals
Cave depot and chamber, if steel pipe concrete bracket does not have antidetonation or allows pressure function, in bracket and country rock interaction process, when
Load be more than bracket bearing capacity when, bracket will unstable failure and lose bearing capacity.Especially there are dynamic pressure or hairs
In the case that Radix Rehmanniae shakes, the probability of concrete filled steel tube overall collapse is greatly increased.And existing steel pipe concrete bracket consumption
Concrete it is often more, be unfavorable for reducing cost.
Summary of the invention
The embodiment of the invention provides a kind of steel pipe concrete hollow brackets, are able to ascend the anti-of steel pipe concrete bracket
Shake, allow compressive strain and bear dynamic load ability, and reduce concrete usage amount.
On the one hand, a kind of steel pipe concrete hollow bracket is provided, the steel pipe concrete hollow bracket includes: steel pipe structure
The connecting sleeve of part, rubber concrete and the connection steel tube component, the steel pipe concrete hollow bracket are equipped with gas vent
And injected hole；
Wherein, the steel tube component includes support arm steel pipe and hollow inner support steel pipe, the support arm steel pipe and institute
It states inner support steel pipe to connect by one or more spacer bars, the support arm steel pipe and the inner support steel pipe is maintained at
Concentric relative position；
The rubber concrete be using concrete or cement mortar as substrate, uniformly mix various discrete rubber powders or
Rubber grain and the cement-base composite material formed, and the support arm steel pipe and inner support steel pipe being placed in the steel tube component it
Between.
Optionally, one end of the inner support steel pipe has reduced diameter section, and other end diameter is constant, so that joint steel pipe
Reduced diameter section is inserted into the constant one end of adjacent diameter when component.
Optionally, the spacer bar includes the first spacer bar and the second spacer bar；Wherein, the first positioning steel
One end of muscle is welded on inner support diameter of steel tube and reduces the intersection that Duan Yuwei reduces section, and the other end is welded on support arm steel pipe side
At edge；One end of second of spacer bar is welded on the constant one end of inner support diameter of steel tube, and the other end is welded on support arm steel
At tube edges.
Optionally, the thickness of pipe wall angle value of the support arm steel pipe is maximum at the position contacted with to supporting section；It is described
The thickness of pipe wall angle value of support arm steel pipe is minimum in the inside of bracket；The minimum ratio with maximum value is 1/2 to 4/5, pipe thickness
Linearly reduced by thickness value maximum to minimum thickness along camber line where section.
Optionally, the diameter of the support arm steel pipe is 8-30cm, the ratio of inner support steel pipe and support arm diameter of steel tube
For 1/2-3/4；The maximum pipe thickness value of the support arm steel pipe is 6-20mm, the minimum pipe thickness of the support arm steel pipe
Value is 4-12mm.Wherein, inner support steel pipe is also possible to other with similar either steel pipe, is also possible to PVC plastic pipe
The tubing of performance.
Optionally, the pipe thickness of the inner support steel pipe is 2-12mm, and pipe thickness is consistent everywhere, the diameter contracting
The inner support steel pipe wall thickness that the value that segment diameter reduces is twice, the length of reduced diameter section are 10-40mm.
Optionally, the concrete is the rubber concrete containing rubber powder, and the rubber powder is by dehydrated alcohol
Or impregnate and dry in sodium hydroxide and obtain, partial size is 300 mesh to 16 mesh.
Optionally, the rubber powder weight proportion in the rubber concrete is 0.1-20%.
Optionally, the steel pipe concrete hollow bracket may also include the stress for monitoring the steel pipe concrete bracket
With the sensor of deformation.The sensor of monitor stress deformation is arranged in the embodiment of the present invention on steel pipe concrete hollow bracket, answers
The data of power deformation can be sent to various terminal equipment (for example, mobile phone, computer etc.) by data communication, with complete monitoring, divide
The stress and deformation of steel pipe concrete hollow bracket are analysed, prevents steel pipe concrete hollow bracket stress and deformation is excessive and occur
It topples, the accidents such as unstability.
Optionally, it is circular steel pipe that the connecting sleeve, which is section, and pipe thickness 4-12mm, internal diameter is than the steel
The outer diameter of pipe component is big, and to guarantee that the steel tube component is smoothly inserted into connection, the length of the connecting sleeve is 150mm-
300mm, the support arm steel pipe is equipped with limit steel ring, to prevent the changing of the relative positions of the connecting sleeve.
Optionally, there are circular exhausting-gas holes at the top of the steel pipe concrete hollow bracket, and diameter 2-10mm, bottom is stayed
There are round injected hole, the gas vent and the injected hole to cooperate with work in the space castable rubber concrete into stand steel pipe
Work, the gas vent and the injected hole are located at the inside of the steel pipe concrete hollow bracket.
Optionally, the inner support steel pipe is equipped with the first hole and the second hole, first hole and the gas vent and note
One in slurry hole is injected water, second hole and the row into the inner support steel pipe with the use of to pass through water supply line
Another in stomata and injected hole is used cooperatively so that water, the water supply to be discharged from the inner support steel pipe by drainage pipeline
Pipeline and the drainage pipeline are the component part that water supplies the circulatory system.
Optionally, the inner support steel pipe be equipped with the first hole and the second hole, the support arm steel pipe be equipped with it is described
The corresponding third hole in first hole and the 4th hole corresponding with second hole, first hole are used cooperatively with the third hole
To inject water into the inner support steel pipe by water supply line, second hole and the 4th hole are used cooperatively to pass through row
Waterpipe is discharged from the inner support steel pipe, and the water supply line and the drainage pipeline are the composition that water supplies the circulatory system
Part water.
On the other hand, a kind of construction method using any steel pipe concrete hollow bracket recited above, institute are provided
The method of stating includes:
Steel tube component is reduced into the suitable of one end insertion constant one end of diameter according to inner support diameter of steel tube using connecting sleeve
Sequence is sequentially connected, and becomes integral support；
It is attached it to what is connected to supporting section up by fixing anchor bar；
The rubber concrete mixed uniform is perfused into hollow steel pipe component holder by injected hole, until rubber concrete
Until each section steel tube component；
Injected hole and gas vent are blocked using stopper, so far hollow steel pipe rubber concrete hollow sting construction finishes.
Optionally, the method also includes:
When the sensor monitors that the stress of the steel pipe concrete hollow bracket is more than stress threshold or deformation is more than
When deformation threshold value, suspension roof support and/or hydraulic support are increased according to the state of the steel pipe concrete hollow bracket.
Optionally, the method also includes:
On the inner support steel pipe be equipped with the first hole and the second hole when, by water supply the circulatory system water supply line to
It is filled the water in the inner support steel pipe, water is discharged from the inner support steel pipe by the drainage pipeline that water supplies the circulatory system.
Steel pipe concrete hollow bracket provided in an embodiment of the present invention and its construction method can be applied to petroleum water seal hole
In library, underground oil storage cave depot, chamber, shaft lining and tunnel, rubber concrete concrete filled steel tube has innovatively been introduced into
In bracket support technology, due to the high-damping ratio of rubber concrete, make steel reinforced concrete bracket while having high-strength support capacity,
Antidetonation allows compressive strain and the ability of receiving dynamic load to be greatly promoted, and solves the problems, such as that steel reinforced concrete bracket is rigidly excessive,
A possibility that greatly reducing steel reinforced concrete bracket brittle break.Meanwhile the steel tube component in steel pipe concrete hollow bracket includes outer
Stand steel pipe and hollow inner support steel pipe, the support arm steel pipe and the inner support steel pipe pass through one or more spacer bars
Connection, is maintained at concentric relative position for the support arm steel pipe and the inner support steel pipe, since the concrete is set
Between the support arm steel pipe in the steel tube component and inner support steel pipe, and concrete is not used in inner support steel pipe,
It thus can reduce the usage amount of concrete.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the overall structure diagram of steel pipe concrete hollow bracket provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of steel tube component provided in an embodiment of the present invention；
Fig. 3 is that the diameter of inner support steel pipe reduces the detailed view of one end；
Fig. 4 is the sectional view of the steel tube component of the line AA interception in Fig. 2；
Fig. 5 is the layout drawing of spacer bar；
Fig. 6 is the flow chart using the construction method of steel pipe concrete bracket provided by the invention.
Description of symbols:
Hollow steel pipe component 1；Connecting sleeve 2；Rubber concrete 3；Inner support steel pipe 4；Injected hole 5；Gas vent 6；Outer branch
Frame steel pipe 7；Perpendicular positioning reinforcing bar 8；Oblique spacer bar 9；Inner support diameter of steel tube reduces section 10；Constant section of inner support diameter of steel tube
11；Limit steel ring 12；Pipe thickness maximum 13 on the outside of support arm steel pipe；14 at support arm steel pipe inner tube wall thickness minimum.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
China is one of maximum country of scrap rubber yield in the world, and with the development of the automobile industry, China is now every
Year Scrap tire has reached annual 100000000 or more, and is increased with annual 15% speed.Scrap rubber is under field conditions (factors)
It is difficult to degrade, not only land occupation, pollute environment, destroy that plant growth, there are fire hazards, but also cause huge resource wave
Take.China pays much attention to the processing and utilization of scrap rubber, but innoxious use rate is relatively low, and about 60%.Therefore, it further opens up
The application range of wide scrap rubber, the utilization efficiency for increasing scrap rubber are a problem to be solved, and for alleviating, resource is nervous, improves
Environmental pollution has great social and economic implications.
Currently, China's scrap rubber is utilized to produce based on reclaimed rubber, but reclaimed rubber production process is complicated, and production energy consumption is big,
Disposal of waste gas, water and industrial residue is difficult, can not meet environmental requirement, American-European key industry developed country has completely forbidden the production of reclaimed rubber.It is useless
Rubber powder simple production process, the consumption energy is few, free from environmental pollution, becomes the major way that developed country utilizes scrap rubber.From
In the long term, waste Crumb rubber is very promising product, can be widely applied to normal concrete, bituminous concrete, waterproof material
In material and other construction materials, there is wide development space and Utilization prospects.
Rubber concrete is uniformly to mix various discrete rubber powders or rubber using concrete or cement mortar as substrate
Particle and the cement-base composite material formed, are the composite materials of a kind of modification, environmental protection, and ductility, impermeability, subtracts crack resistance
It shakes damping and amortization, heat insulation property and sound insulation and noise reduction etc. and is better than normal concrete, rubber mainly passes through physical mechanics improved effect
Concrete inner structure does not change the chemical property of a variety of materials in concrete itself, because without destroying the resistance to of concrete
Long property.Rubber concrete can largely consume scrap rubber, and China's concrete yield is more than 1,500,000,000 m3, theoretically 1m3Concrete need only be mixed
Add 0.8kg rubber powder that can digest the scrap rubber of not recovery and reusing and recycling.Waste rubber tire be it is a kind of by rubber, carbon black,
The material containing cross-linked structure of the multiple materials such as softening agent and vulcanization accelerator composition, rubber aggregate used are waste old warps
Pulverizer is broken its cross-linked structure, and a large amount of molecular fragment particles of generation, surface is inert, according to particle after crushing
Size is divided into the rubber powder of different meshes grade.Scrap rubber is resourceful, cheap, is modified using it to concrete
It is a kind of both simple and economic method.
The embodiment of the present invention provides a kind of steel pipe concrete hollow bracket, and the steel pipe concrete hollow bracket includes: steel
The connecting sleeve of pipe component, rubber concrete and the connection steel tube component, the steel pipe concrete hollow bracket are equipped with row
Stomata and injected hole；Wherein, the steel tube component includes support arm steel pipe and hollow inner support steel pipe, the support arm steel pipe
It is connected with the inner support steel pipe by one or more spacer bars, the support arm steel pipe and the inner support steel pipe is protected
It holds in concentric relative position；The rubber concrete is uniformly to mix various discrete rubber powders using concrete as substrate
Or rubber grain and the cement-base composite material that is formed, and the rubber concrete is placed in the support arm steel in the steel tube component
Between pipe and inner support steel pipe.
The embodiment of the present invention is by the way that rubber concrete to be introduced into steel pipe concrete bracket support technology, so that steel pipe
Concrete support while having high-strength support capacity, greatly promote antidetonation, allow compressive strain and bear dynamic load energy
Power solves the problems, such as that steel pipe concrete bracket is rigidly excessive, greatly reduces the possibility of steel pipe concrete bracket brittle break
Property.Meanwhile the steel tube component in steel pipe concrete hollow bracket includes support arm steel pipe and hollow inner support steel pipe, it is described outer
Stand steel pipe is connected with the inner support steel pipe by one or more spacer bars, by the support arm steel pipe and the interior branch
Frame steel pipe is maintained at concentric relative position, support arm steel pipe and the Nei Zhi being placed in the steel tube component due to the concrete
Between frame steel pipe, and there is no use concrete in inner support steel pipe, it is thus possible to reduce the usage amount of concrete.
Below with reference to Fig. 1-5 by taking rubber concrete as an example to steel pipe concrete bracket provided in an embodiment of the present invention carry out into
One step is illustrated.
A kind of hollow steel tube concrete support as shown in Figs. 1-5 includes: hollow steel pipe component 1, rubber concrete 3, connects
Female connector pipe 2.Hollow steel pipe component 1 is connected to become integral support by connecting sleeve 2, using fixing anchor bar by bracket be installed to
On supporting section, and castable rubber concrete 3 forms hollow steel pipe rubber concrete bracket into bracket.
It is the circular two support arm steel pipes 7 and Nei Zhi with the section center of circle that the hollow steel pipe component 1, which is by section,
Frame steel pipe 4 forms, that is to say, that finally formed is hollow steel pipe rubber concrete bracket, inner support steel pipe 4, support arm steel pipe
7 fix its concentric relative position by perpendicular positioning reinforcing bar 8 and oblique spacer bar 9；The shape of integral support can be stalk
Semicircular arched, circle, rectangle, rectangular, the shape of a hoof etc., depending on to supporting section configuration.
The diameter of the support arm steel pipe 7 is 8-30cm, and the ratio of inner support steel pipe 4 and 7 diameter of support arm steel pipe is 1/
2-3/4；The thickness of pipe wall angle value of the support arm steel pipe 7 13 maximum at the position contacted with to supporting section is 6-20mm；
The thickness of pipe wall angle value of the support arm steel pipe is minimum in the inside of bracket 14, is 4-12mm；Minimum and maximum value ratio is
, pipe thickness linearly reduces by thickness value maximum 13 to minimum 14 thickness along section place camber line.Enhance in this way
The bend resistance ability of steel pipe rubber concrete bracket and the tensile strength in outside.7 pipe thickness of support arm steel pipe
It can be uniform, numerical value 6-20mm.
The pipe thickness of the 1 inner support steel pipe of hollow steel pipe component is 2-8mm, and pipe thickness is consistent everywhere, inner support
There is reduced diameter section 10 in an end to 4 diameter of steel pipe wherein, and 11 diameter of the other end is constant；10 diameter of the reduced diameter section contracting
The length of 4 pipe thickness of inner support steel pipe that small value is twice, reduced diameter section 10 is 10-40mm, in this way in hollow steel pipe
It is straight that diameter of steel tube diminution section 10 in the component 1 can be inserted into steel pipe in adjacent rubber concrete component of steel pipe when connecting by component 1
The unchanged one end 11 of diameter avoids rubber concrete 3 from overflowing into inner support steel pipe 4 to guarantee the continuous pouring of rubber concrete 3
Portion.
The rubber concrete 3 is to add rubber powder uniform stirring in normal concrete to form, rubber powder weight institute
Accounting example 0.1%-20%.
The rubber powder is made of waste tire, and partial size is -16 mesh of 300 mesh, need to be by dehydrated alcohol or hydrogen-oxygen
Change in sodium and impregnates and dry, to remove the zinc stearate in rubber, thus enhance the cementitiousness of rubber grain and cement mortar,
Reduce the cracking of rubber concrete.
There are gas vents 6 at the top of the hollow steel tube concrete support, for circle, diameter 2-10mm；Bottom there are
Injected hole 5, for circle, the diameter of injected hole 5 and the diameter of Grouting Pipe match, and gas vent 6 and injected hole 5 are empty into bracket
Between castable rubber concrete 3 when cooperate.
The gas vent 6 and injected hole 5 is respectively positioned on the inside of steel pipe rubber concrete bracket, and such arrangement can
To guarantee stent outer enough tensile capacity while ensuring smooth slip casting.
The connecting sleeve 2 is that section is round steel pipe, pipe thickness 4-12mm, shape and connected adjacent hollow
Steel tube component 1 matches, and internal diameter is more slightly larger than the outer diameter of hollow steel pipe component 1, can guarantee that smoothly insertion connects i.e. hollow steel pipe component 1
It can；The length of the connecting sleeve 2 is 150mm-300mm.
It is welded with limit steel ring 12 on 7 outside of support arm steel pipe, to avoid the changing of the relative positions of connecting sleeve 2.Wherein, steel is limited
Circle may be welded in connecting sleeve.
There are two types of the spacer bars, and a kind of oblique spacer bar 9 is welded to 4 reduced diameter section 10 of inner support steel pipe,
Shared 2-6 root reinforcing bar, is uniformly distributed, welding manner is consistent, and oblique 9 one end of spacer bar is welded on 7 edge of support arm steel pipe, separately
One end is welded on 4 reduced diameter section 10 of inner support steel pipe and does not reduce the intersection of section；Another perpendicular positioning reinforcing bar 8 is welding
In interior unchanged one end 11 of 4 diameter of stand steel pipe, 2-6 root reinforcing bar is shared, is uniformly distributed, welding manner is consistent, perpendicular positioning
8 one end of reinforcing bar is welded on 7 edge of support arm steel pipe, and the other end is welded on 4 diameter of inner support steel pipe and does not change 11 edge of one end
Place.The effect of two kinds of spacer bars both ensures that inner support steel pipe 4 and the concentric relative position of support arm steel pipe 7.
In embodiments of the present invention, optionally, the steel pipe concrete bracket may also include mixed for monitoring the steel pipe
The stress of solidifying soil bracket and the sensor of deformation (for example, deformation up and down or in terms of two sides) (not shown go out).The sensing
The initial stress threshold of a settable safety of device and the deformation threshold value of a safety, and monitor the real-time of steel pipe concrete bracket
Stress value and deformation values.When real-time stress value and deformation values are more than this stress threshold or deformation threshold value, alarm device can trigger
Sound an alarm the sound.
When staff hears alarm song, it can be learnt that steel pipe concrete bracket is in limit stress, at this point, meeting
It takes increase suspension roof support, increase hydraulic prop etc. and remedies means accordingly, avoid further unstability.And work as ess-strain number
It is in stable state according to long-time, then provable bracket has been in the safe condition of steady operation.
The sensor of monitor stress deformation, the data of stress deformation are arranged in the embodiment of the present invention on steel pipe concrete bracket
It can be sent to various terminal equipment (for example, mobile phone, computer etc.), by data communication with complete monitoring, analysis concrete filled steel tube
The stress and deformation of bracket, prevent steel pipe concrete bracket stress and deformation is excessive and topple, the accidents such as unstability.
In embodiments of the present invention, optionally, the inner support steel pipe is equipped with the first hole and the second hole, first hole
It is used cooperatively with one in the gas vent and injected hole to inject water into the inner support steel pipe by water supply line, institute
Another stated in the second hole and the gas vent and injected hole is used cooperatively to pass through draining when interior stand steel pipe fills water
Water is discharged from the inner support steel pipe in pipeline.So, it can use described in two existing Kong Laiyu of support arm steel pipe
First hole and the cooperation of the second hole, without in addition opening up additional hole in outer stand steel pipe.
In embodiments of the present invention, as another implementation, the first hole and the are equipped on the inner support steel pipe
In the case where two holes, optionally, on the support arm steel pipe can be equipped with third hole corresponding with first hole and with it is described
Corresponding 4th hole in second hole.Wherein, first hole and the third hole be used cooperatively with by water supply line to described interior
Water is injected in stand steel pipe, second hole and the 4th hole are used cooperatively to pass through drainage pipeline from the inner support steel pipe
Middle discharge water, the water supply line and the drainage pipeline are the component part that water supplies the circulatory system.In the injecting process, if
It was found that thering is water to be discharged from the inner support steel pipe by drainage pipeline, then it can be seen that water has filled in inner support steel pipe.
In embodiments of the present invention, the water supply line and the drainage pipeline can supply the composition of the circulatory system for water
Part.It is supplied water by water supply line to the inner support steel pipe from the water supply circulatory system, is discharged from the inner support steel pipe
Water can come back to the water supply circulatory system by drainage pipeline, and water supplies the circulatory system by being selectively supplied with hot water and cold
Water may be implemented permanent for warm refrigerating function.
Wherein, the first hole and the second hole may be provided at the various different locations on inner support steel pipe, this two hole is the smaller the better,
It can guarantee that water normally passes in and out.The pipeline can be the pipe, such as hose, steel pipe etc. of various materials.
The embodiment of the present invention is by the injection water in interior stand steel pipe, it can be achieved that the function of winter heating, cooling in summer.Tool
Body, can the water flowing in interior stand steel pipe, the heating function of similar north of china in winter heating leads to hot water heating when temperature is too low,
Lead to cold water refrigeration when temperature is excessively high, thus convenient working personnel.In addition, can be the mating hot water or cold water's cyclic system of multiple hollow stings
System is to realize this function.In addition, can be released in first time when fire occurring in tunnel, chamber, cave depot using the present invention
The water recycled in inner support steel pipe, to achieve the purpose that the disaster relief.
Referring to Fig. 6, the construction method of hollow steel tube concrete support provided in an embodiment of the present invention may include:
61, hollow steel pipe component 1 is reduced into one end 10 according to inner support diameter of steel tube using connecting sleeve 2 and is inserted into diameter not
Become being sequentially connected with for one end 11, becomes integral support；
62, the bracket that the hollow steel pipe component 1 connected forms is attached it to by fixing anchor bar to supporting section
Up；
63, the rubber concrete 3 mixed uniform is perfused into 1 bracket of hollow steel pipe component by injected hole 5, until rubber
Until concrete 3 is full of each section hollow steel pipe component 1；
64, injected hole 5 and gas vent 6 are blocked using stopper, so far hollow steel pipe rubber concrete rack construction finishes.
Optionally, the construction method further include: when the sensor monitors the stress of the steel pipe concrete bracket
When being more than deformation threshold value more than stress threshold or deformation, suspension roof support is increased according to the state of the steel pipe concrete bracket
And/or hydraulic support.
Optionally, described to apply when being equipped with the first hole and the second hole on the inner support steel pipe before above-mentioned steps 64
Work method further include: filled the water in Xiang Suoshu inner support steel pipe, after the completion of filling the water, close first hole and second hole.
The advantages of hollow steel pipe rubber concrete bracket provided in an embodiment of the present invention and its construction method can include:
(1) present invention relative to solid steel tube concrete bracket can save a large amount of concrete, reduce bracket at
This.
(2) rubber concrete has innovatively been introduced into hollow steel tube concrete support support technology, due to rubber
The high-damping ratio of concrete, makes steel reinforced concrete bracket while having high-strength support capacity, antidetonation, allow compressive strain and bear power
The ability of load is greatly promoted, and is solved the problems, such as that hollow steel reinforced concrete bracket is rigidly excessive, is greatly reduced steel reinforced concrete bracket
A possibility that brittle break；
(3) replace the normal concrete in steel reinforced concrete bracket using rubber concrete, steel pipe provides lock ring for rubber concrete
Power, so that rubber powder and concrete propose the bad problem of compatibility and obtain the improvement of high degree；
(4) using rubber powder rather than rubber granule, solve to a certain extent rubber granule concrete rubber grain float with
The problem of being unevenly distributed；
(5) present invention has expanded application of the rubber powder in civil engineering, further, to solve current waste and used rubber tyre
Seriously polluted problem is made that contribution；
(6) for the steel pipe of variable thickness, the bend resistance for improving steel reinforced concrete bracket destroys the support arm steel pipe that the present invention uses
Ability, while also saving the dosage of steel；
It should be understood that steel pipe concrete bracket provided by the above embodiment belong to its construction method embodiment it is same
Design, also cross-referenced between them, redundant content repeats no more here.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
For device class embodiment, since it is basically similar to the method embodiment, so being described relatively simple, related place ginseng
See the part explanation of embodiment of the method.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or equipment for including a series of elements not only includes those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including institute
State in the process, method, article or equipment of element that there is also other identical elements.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of steel pipe concrete hollow bracket, which is characterized in that the steel pipe concrete hollow bracket include: steel tube component,
Rubber concrete and the connecting sleeve for connecting the steel tube component, the steel pipe concrete hollow bracket are equipped with gas vent and note
Starch hole；
Wherein, the steel tube component includes support arm steel pipe and hollow inner support steel pipe, the support arm steel pipe and described interior
Stand steel pipe is connected by one or more spacer bars, and the support arm steel pipe and the inner support steel pipe are maintained at concentric
Relative position；
The rubber concrete is uniformly to mix various discrete rubber powders using concrete or cement mortar as substrate and formed
Cement-base composite material, and between the support arm steel pipe being placed in the steel tube component and inner support steel pipe;
The rubber concrete is the rubber concrete containing rubber powder, and the rubber powder is by dehydrated alcohol or hydroxide
It impregnates and dries in sodium and obtain, partial size is 300 mesh to 16 mesh, the rubber powder weight proportion in the rubber concrete
For 0.1%-20%；
One end of the inner support steel pipe has reduced diameter section, and other end diameter is constant, so that will be straight when joint steel pipe component
Diameter reduces section and is inserted into the constant one end of adjacent diameter；
The thickness of pipe wall angle value of the support arm steel pipe is maximum at the position contacted with to supporting section；The support arm steel pipe
Thickness of pipe wall angle value is minimum in the inside of bracket；The minimum ratio with maximum value is 1/2 to 4/5, and pipe thickness is by thickness value maximum
Locate at minimum thickness linearly to reduce along camber line where section；
The spacer bar includes the first spacer bar and the second spacer bar；
Wherein, one end of the first spacer bar is welded on the intersection that inner support diameter of steel tube reduces Duan Yuwei diminution section, separately
One end is welded on support arm steel pipe edge；
One end of second of spacer bar is welded on the constant one end of inner support diameter of steel tube, and the other end is welded on support arm steel pipe
Edge;
The first described spacer bar is oblique spacer bar, and second of spacer bar is perpendicular positioning reinforcing bar.
2. steel pipe concrete hollow bracket according to claim 1, which is characterized in that the diameter of the support arm steel pipe is
The ratio of 8-30cm, inner support steel pipe and support arm diameter of steel tube is 1/2-3/4；The maximum pipe thickness of the support arm steel pipe
Value is 6-20mm, and the minimum pipe thickness value of the support arm steel pipe is 4-12mm.
3. steel pipe concrete hollow bracket according to claim 1, which is characterized in that the thickness of pipe wall of the inner support steel pipe
Degree is 2-12mm, and pipe thickness is consistent everywhere, the inner support steel pipe that the value that the reduced diameter section diameter reduces is twice
Wall thickness, the length of reduced diameter section are 10-40mm.
4. steel pipe concrete hollow bracket according to claim 1, which is characterized in that the steel pipe concrete hollow bracket
It further include the sensor of the stress for monitoring the steel pipe concrete hollow bracket and deformation.
5. steel pipe concrete hollow bracket according to claim 1, which is characterized in that the connecting sleeve is that section is round
The steel pipe of shape, pipe thickness 4-12mm, internal diameter is bigger than the outer diameter of the steel tube component, to guarantee that the steel tube component is smooth
Insertion connection, the length of the connecting sleeve are 150mm-300mm, and the support arm steel pipe is equipped with limit steel ring, to prevent
The changing of the relative positions of the connecting sleeve.
6. steel pipe concrete hollow bracket according to claim 5, which is characterized in that the steel pipe concrete hollow bracket
There are circular exhausting-gas holes at top, diameter 2-10mm, there are round injected hole, the gas vent and the injected holes to exist for bottom
It cooperates when space castable rubber concrete into stand steel pipe, the gas vent and the injected hole are located at the steel pipe and mix
The inside of solidifying soil hollow sting.
7. steel pipe concrete hollow bracket according to claim 1, which is characterized in that the inner support steel pipe is equipped with the
One in one hole and the second hole, first hole and the gas vent and injected hole is used cooperatively to pass through water supply line to institute
It states and injects water in inner support steel pipe, another in second hole and the gas vent and injected hole is used cooperatively to pass through row
Water is discharged in waterpipe from the inner support steel pipe, and the water supply line and the drainage pipeline are the group that water supplies the circulatory system
At part.
8. steel pipe concrete hollow bracket according to claim 1, which is characterized in that the inner support steel pipe is equipped with the
One hole and the second hole, the support arm steel pipe are equipped with third hole corresponding with first hole and corresponding with second hole
The 4th hole, first hole and the third hole are used cooperatively to be injected by water supply line into the inner support steel pipe
Water, second hole and the 4th hole are used cooperatively so that water is discharged from the inner support steel pipe by drainage pipeline, described
Water supply line and the drainage pipeline are the component part that water supplies the circulatory system.
9. a kind of construction method using steel pipe concrete hollow bracket as claimed in claim 4, which is characterized in that the method
Include:
Using connecting sleeve by steel tube component according to inner support diameter of steel tube reduce one end insertion the constant one end of diameter sequence according to
Secondary connection, becomes integral support；
It is attached it to what is connected to supporting section up by fixing anchor bar；
The rubber concrete mixed uniform is perfused into hollow steel pipe component holder by injected hole, until rubber concrete is full of
Until each section steel tube component；
Injected hole and gas vent are blocked using stopper, so far steel pipe rubber concrete hollow sting construction finishes.
10. construction method according to claim 9, which is characterized in that the method also includes:
When the sensor monitors that the stress of the steel pipe concrete hollow bracket is more than stress threshold or deformation is more than deformation
When threshold value, suspension roof support and/or hydraulic support are increased according to the state of the steel pipe concrete hollow bracket.
11. construction method according to claim 9, which is characterized in that the method also includes:
When being equipped with the first hole and the second hole on the inner support steel pipe, the water supply line of the circulatory system is supplied to described by water
It is filled the water in inner support steel pipe, water is discharged from the inner support steel pipe by the drainage pipeline that water supplies the circulatory system.
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| CN109083660B (en) * | 2018-08-22 | 2020-07-31 | 山东建筑大学 | Soft rock roadway or tunnel bottom heave treatment supporting structure and method based on reinforced concrete bottom beam |
| CN110005872B (en) * | 2019-04-23 | 2021-01-05 | 河海大学 | Transportation and grouting integrated pipeline and operation method thereof |
| CN110513124B (en) * | 2019-09-16 | 2020-11-03 | 安徽理工大学 | Embedded grouting pipe network supporting structure of high-stress layered unloading fractured rock mass roadway |
| CN110700863B (en) * | 2019-09-25 | 2021-02-19 | 山东建筑大学 | Water bag filling pipe type combined arch frame and construction process thereof |
| CN112832825B (en) * | 2021-01-19 | 2022-04-12 | 华北理工大学 | Assembled hollow sandwich concrete filled steel tube arch center and construction method thereof |
| CN113914905A (en) * | 2021-09-17 | 2022-01-11 | 中铁十九局集团矿业投资有限公司 | Yielding hollow concrete filled steel tube support and construction method |
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| CN201588636U (en) * | 2009-08-10 | 2010-09-22 | 招商局重庆交通科研设计院有限公司 | Tunnel inner wall structure |
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| CN205089335U (en) * | 2015-10-26 | 2016-03-16 | 山东科技大学 | Let under large deformation and press rubber granule concrete steel bracket |
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| CN201588636U (en) * | 2009-08-10 | 2010-09-22 | 招商局重庆交通科研设计院有限公司 | Tunnel inner wall structure |
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| CN204511455U (en) * | 2015-03-31 | 2015-07-29 | 山东科技大学 | Deep weak surrounding rock Double-casing coupling yield supporting system |
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