CN107816360A - Utilize the big stroke rod-type damper of performance behind material peak - Google Patents
Utilize the big stroke rod-type damper of performance behind material peak Download PDFInfo
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- CN107816360A CN107816360A CN201710998657.5A CN201710998657A CN107816360A CN 107816360 A CN107816360 A CN 107816360A CN 201710998657 A CN201710998657 A CN 201710998657A CN 107816360 A CN107816360 A CN 107816360A
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- connecting plate
- mesh sheet
- damping
- damper
- rod
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- 239000000463 material Substances 0.000 title claims abstract description 19
- 238000013016 damping Methods 0.000 claims abstract description 71
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 230000001154 acute effect Effects 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 26
- 238000000034 method Methods 0.000 abstract description 6
- 230000008602 contraction Effects 0.000 abstract description 4
- 238000012856 packing Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 8
- 239000004567 concrete Substances 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21D11/14—Lining predominantly with metal
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Vibration Dampers (AREA)
Abstract
The big stroke rod-type damper of performance behind a kind of peak using material, including the first connecting plate, the second connecting plate and rod-type damping piece, damping mesh sheet is cooperatively formed between the rod-type damping piece, plate face of the damping mesh sheet respectively with first connecting plate and second connecting plate is fixedly connected, and the plate face of first connecting plate and second connecting plate is parallel to each other;The damping mesh sheet produces compressive deformation in the compression of first connecting plate and second connecting plate.First connecting plate and the second connecting plate receive extruding force, are then passed to damping mesh sheet, damp in mesh sheet deformation process, allow country rock to produce contraction distortion while damper cooperates with tunnel structure to surrounding rock supporting, discharge pressure from surrounding rock.In practice, pressure from surrounding rock discharges in the yield deformation stage of damper to be completed, and is completed if pressure from surrounding rock does not discharge in the damper yield deformation stage, the packing stage of damper can provide final safety assurance.
Description
Technical field
The present invention relates to Tunnel Engineering field, and in particular to the big stroke rod-type damping of performance behind a kind of peak using material
Device.
Background technology
China is in Tunnel Engineering and builds the high-speed developing period, is largely related to country rock in fields such as traffic, mine, water conservancies
Stability problem.Large deformation problem is commonly encountered when tunnel structure passes through weakness, breaking surrounding rock stratum, tunnel surrounding is shown as and holds
Continuous deflection is big, the breakaway of preliminary bracing concrete, chip off-falling, crushing, steelframe distortion, cause difficulty of construction is big, construction speed slowly,
Disease management is difficult, construction risk increases, construction cost increases sharply.
When running into large deformation disease, existing countermeasure is mostly that anchor pole, back-grouting are set at structure destruction, is performed
Cover arch, change preliminary bracing etc., in place's strengthening supporting parameter of not constructing, such as set anchor pole (rope), grouting with small pipe, increase to spray and mix
Solidifying soil thickness etc., but practice have shown that, simple increase supporting parameter can not effectively administer large deformation problem, such as Mu Zhai ridges tunnel
Sub- tunnel of road, new city etc., its construction period multiple strengthening supporting parameter, the lining of change two perform opportunity, repeatedly change initial stage repeatedly
Large deformation problem is not solved after supporting still.To find out its cause, the deformation pressure brought for surrouding rock deformation that tunnel support structure is subject to
Power, the simple deformation pressure brought by the hard anti-country rock of Support Resistance be it is infeasible, it is above-mentioned to be changed repeatedly in construction
The behavior for the preliminary bracing that gross distortion destroys occurs, its essence is exactly the progressively deformation release country rock under the constraint of supporting in the early stage
The process of deformation pressure, until pressure from surrounding rock release finishes, cavern can just tend towards stability.
Now, " anti-to put combination " supporting construction has constant resistance and large deformation anchor rod (rope) and scalable steelframe.Constant resistance and large deformation anchor
The anchor pole (rope) that bar (rope) can significantly be deformed in the case where providing constant operation resistance, " constant-resistance device " can be referred to as,
It is applied in the mine working of many places, its application method is to set constant resistance and large deformation anchor rod (rope) system, anchor in tunnel-surrounding
300mm-1000mm deflection can persistently occur in the case where providing 120-130kN working resistance for bar (rope), pass through anchor pole (rope)
System carries out supporting to tunnel.Using U-shaped steel and slidably, joint, steelframe can provide certain Support Resistance to scalable steelframe
Under, circumferentially compression.Perseverance group large deformation anchor rod (rope) and scalable steelframe are mainly used in mine working, are not suitable for tunnel
Road engineering, because it is independent work system, and performing preliminary bracing after being excavated in tunnel needs gunite concrete, coagulation
The variability capacity of soil structure is limited, once preliminary bracing forms the concrete structure of closing, perseverance group large deformation anchor rod
(rope) and scalable steelframe just lose the meaning of its setting.
The content of the invention
The present invention in view of the shortcomings of the prior art, proposes a kind of big stroke rod-type damper of performance behind peak using material,
Tunnel inner wall can be played a supporting role, at the same can also deformation within the specific limits, discharge the stress in tunnel so that tunnel
The reliability of support gets a promotion, and concrete technical scheme is as follows:
The big stroke rod-type damper of performance behind a kind of peak using material, including the first connecting plate, the second connecting plate and bar
Type damping piece, cooperatively forms damping mesh sheet between the rod-type damping piece, the damping mesh sheet respectively with first connecting plate
It is fixedly connected with the plate face of second connecting plate, and first connecting plate and the plate face of second connecting plate are mutually equal
OK;
The damping mesh sheet produces compressive deformation in the compression of first connecting plate and second connecting plate.
Effect, the first connecting plate and the second connecting plate are squeezed power, are then passed to damping mesh sheet, damping mesh sheet deformation
During, damping mesh sheet allows country rock to produce contraction distortion while cooperateing with tunnel structure to surrounding rock supporting, discharges pressure from surrounding rock.
In practice, pressure from surrounding rock discharges in the yield deformation stage of damper to be completed, if pressure from surrounding rock is not surrendered in damper
Deformation stage release is completed, then the packing stage of damper can provide final safety assurance.
A kind of further restriction of parallel technical solution, the damping mesh sheet are that open and flat formula damps mesh sheet.
Effect, template damping mesh sheet is clamped in centre by connecting plate, when the first connecting plate and the second connecting plate are squeezed
During power, damping mesh sheet is also squeezed, and damping mesh sheet deforms upon, and deformation mainly divides 4 stages, and the 1st stage was damping mesh sheet
Elastic deformation stage, pressure with deform it is linearly increasing, the 2nd stage for damping mesh sheet surrender decline deformation stage, pressure with
Deformation declines, and the 3rd stage was the surrender residual deformation stage of damping mesh sheet, and pressure is constant with deforming, and the 4th stage was damping mesh sheet
Compacting deformation stage, pressure with deformation increase, wherein the 3rd stage be damp mesh sheet deformation main body, damper is constant
Continue large deformation under pressure, damping mesh sheet deformation band moves integer support structure and produces contraction distortion, so as to realize control tunnel knot
Structure internal force, release pressure from surrounding rock, increase integrally-built safety coefficient.
Damper utilizes performance behind strength of materials peak, can be in the case where providing certain resistance, it is allowed to larger compression displacement;
Resistance and range can adjust behind the hump drag of damper, peak;The deformation direction of damper can control, and be worked in big stroke
When, the damper after deformation does not invade tunnel clearance;Damper can pass through bolt hole and dowel and the tunnel of diversified forms
Supporting construction and its combination of a variety of positions;Tunnel structure is except normal section eccentric compression, also by cutting radially
Shear force, damper have enough anti-shear abilities;Damper can be mutually connected in tunnel by connecting plate and longitudinally form elongated beam;
After demarcating damper " load-displacement " curve, structural internal force or pressure from surrounding rock can be determined according to the displacement of damper;Damper
Injection or casting concrete can be used locked with the interim function of increasing resistance of realization.
Further limit, the open and flat formula damping mesh sheet includes rectilinear damping mesh sheet, and the rectilinear damping mesh sheet is hung down
Directly in the plate face of first connecting plate and second connecting plate.
Further limit, the open and flat formula damping mesh sheet includes tilting damping mesh sheet, the tilting damping mesh sheet with
The plate face of first connecting plate and second connecting plate is at an acute angle.
Effect, simpler when straight-bar structural damping device is manufactured, cost-effective, rectilinear damping mesh sheet and inclination
Bar causes it to bear the capability improving of pressure, selects different bearing capacity collocation different types of according to the situation in specific tunnel
Damper.
A kind of further restriction of parallel technical solution, the damping mesh sheet are that bending-type damps mesh sheet.
The pressure peak in the 1st stage of the curvature-adjustable section damping mesh sheet deformation of curved bar is adjusted, the curvature of curved bar is bigger, pressure
Power peak value is smaller, and when curved bar bends to semi arch, the pressure peak in the 1st stage is equal to the remaining constant pressure of phase III,
And curved bar can control the surrender bending direction of bar, ensure that each damping mesh sheet does not extrude mutually in flexural deformation, so that influenceing resistance
The constant yield force of Buddhist nun's device.
Outside plate face on a kind of further restriction of parallel technical solution, first connecting plate and second connecting plate
It is provided with dowel and bolt hole.
Effect, when mounted, people's concrete is buried by dowel and fixed, while is fixed by bolt hole and steelframe.
A kind of further restriction of parallel technical solution, perpendicular to connecting board surface the rod-type damping piece both ends also
Provided with extension, the extension extends through first connecting plate and second connecting plate.
Effect, extend through part and replace dowel function.When mounted, fixed by extension Transducers Embedded in Concrete, this
When damper and steelframe only contacted, but do not take bolt to fix, installation is fast and also more convenient when manufacturing.
Beneficial effects of the present invention are:Damping piece is used as by rod-like structure, forms damping mesh sheet, damper is manufactured into
This is lower, easily manufactured, and the cycle of manufacture and installation is shorter, and this damper can play a supporting role to tunnel, and supports
Afterwards, damper can carry out deformation according to the extruding force that tunnel applies to it, discharge the pressure in tunnel.The present invention can not only pacify
Damping as ring on tunnel ring deforms, and can also be arranged on damping of the tunnel radially as radial direction and deform.This
Invention can carry out prefabricated, then be installed in constructing tunnel, easily manufactured, and installation is also convenient for.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention one.
Fig. 2 is the structural representation of the embodiment of the present invention two.
Fig. 3 is the structural representation of the embodiment of the present invention three.
Fig. 4 is the structural representation of the embodiment of the present invention four.
Fig. 5 is the structural representation of the embodiment of the present invention five.
Fig. 6 is the structural representation of the embodiment of the present invention six.
Fig. 7 be the present invention as damper on ring direction when scheme of installation.
Fig. 8 be the present invention as damper in the radial direction when scheme of installation.
Fig. 9 is the deformation process schematic diagram of damper.
Figure 10 is the pressure and deformational displacement relation schematic diagram of damper.
Embodiment
Presently preferred embodiments of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
As shown in figure 1, in embodiment one, the big stroke rod-type damper of performance behind a kind of peak using material, by mild steel
It is made, it includes the first connecting plate 1, the second connecting plate 2 and rod-type damping piece, and damping is cooperatively formed between the rod-type damping piece
Mesh sheet, plate face of the damping mesh sheet respectively with first connecting plate 1 and second connecting plate 2 are fixedly connected, and described
The plate face of first connecting plate 1 and second connecting plate 2 is parallel to each other;The first connecting plate 1 and the second connecting plate 2 are flat in diagram
Harden structure, the plate of other shapes can also be applied, and e.g., the cross sectional curve of width is c-type, in the longitudinal direction Curved
Into other shapes such as bridge arch shapes, as long as meeting that the plate face of the first connecting plate 1 and the second connecting plate 2 is parallel to each other.The resistance
Buddhist nun's mesh sheet produces compressive deformation in the compression of first connecting plate 1 and second connecting plate 2.The damping mesh sheet is flat
Exhibition formula damps mesh sheet 31.The open and flat formula damping mesh sheet 31 is rectilinear damping mesh sheet 311, the rectilinear damping mesh sheet 311
Perpendicular to the plate face of first connecting plate 1 and second connecting plate 2.
As shown in Fig. 2 embodiment two is that the tilting damps mesh sheet relative to the embodiment one difference part
312 is at an acute angle with the plate face of first connecting plate 1 and second connecting plate 2.
As shown in figure 3, embodiment three is the combination of embodiment one and embodiment two, the open and flat formula damping mesh sheet 31 includes
Rectilinear damping mesh sheet 311 and tilting damping mesh sheet 312, the tilting damping mesh sheet 312 are interspersed in each described vertical
Between formula damping mesh sheet 311, network structure is formed.
As shown in figure 4, example IV, the damping mesh sheet is that bending-type damps mesh sheet 32.
As shown in figure 5, outside plate face is provided with company on embodiment five, first connecting plate 1 and second connecting plate 2
Connect muscle 4 and bolt hole 5.
As shown in fig. 6, embodiment six, extension is additionally provided with perpendicular to the both ends of the rod-type damping piece of connecting board surface
6, the extension 6 extends through first connecting plate 1 and second connecting plate 2.
As shown in fig. 7, support and deformation are provided for ring direction using the big stroke rod-type damper of performance behind material peak,
It is that the connecting plate 1 and second of steelframe 7 and first connects that steelframe 7, which is located at using the both sides of the big stroke rod-type damper of performance behind material peak,
Fishplate bar 2 is bolted.
As shown in figure 8, support and deformation are provided for radial direction using the big stroke rod-type damper of performance behind material peak,
Using the big stroke rod-type damper of performance behind material peak between country rock 8 and steelframe 7, and the plate face of the first connecting plate 1 and
Steelframe 7 contacts, and the plate face and country rock 8 of the second connecting plate 2 contact.
As shown in figure 9, P is load, U is deformational displacement, and damping mesh sheet is from compression, then to yield deformation, then to being compacted,
During yield deformation, damper plays supporting role to country rock 8, when being compacted to the end, the pressure release of tunnel surrounding 8
Finish, deformational displacement no longer produces.
As shown in Figure 10, damp mesh sheet includes four-stage in deformation process, and 1, elastic stage, 2, surrender time depression of order
Section, 3, surrender remaining stage, 4, packing stage.
Damper is pressurized from elastic deformation, to yield deformation, then to being finally compacted.In damper deformation process, resistance
Allow country rock to produce contraction distortion while Buddhist nun's device cooperates with tunnel structure to surrounding rock supporting, discharge pressure from surrounding rock.In practice
In, pressure from surrounding rock discharges in the yield deformation stage of damper to be completed, if pressure from surrounding rock is not released in the damper yield deformation stage
Discharge into, then the packing stage of damper can provide final safety assurance.
In Fig. 1-Fig. 6, the schematic diagram on damping one plane angle of mesh sheet is illustrate only, it shows on view is only
Single rod-like structure, the shape reference picture 7 on another plane angle, in the figure 7, it can be seen that damp the netted knot of mesh sheet
Structure is made up of head rod and the second connecting rod, and the both ends of head rod are consolidated with the first connecting plate and the second connecting plate respectively
Fixed, the second connecting rod and head rod are into angle cross-fixing so that when connecting plate is pressurized, after the deformation of head rod
The coverage of the first connecting plate and the second connecting plate is not stretched out, avoids it from influenceing to construct toward deformation inside tunnel clearance.
Claims (7)
- A kind of 1. big stroke rod-type damper of performance behind peak using material, it is characterised in that:Including the first connecting plate (1), Two connecting plates (2) and rod-type damping piece, cooperatively form damping mesh sheet between the rod-type damping piece, the damping mesh sheet respectively with First connecting plate (1) is fixedly connected with the plate face of second connecting plate (2), and first connecting plate (1) and described The plate face of second connecting plate (2) is parallel to each other;The damping mesh sheet produces compressive deformation in the compression of first connecting plate (1) and second connecting plate (2).
- 2. the big stroke rod-type damper of performance behind a kind of peak using material according to claim 1, it is characterised in that:Institute It is that open and flat formula damps mesh sheet (31) to state damping mesh sheet.
- 3. the big stroke rod-type damper of performance behind a kind of peak using material according to claim 2, it is characterised in that:Institute Stating open and flat formula damping mesh sheet (31) includes rectilinear damping mesh sheet (311), and the rectilinear damping mesh sheet (311) is perpendicular to described The plate face of first connecting plate (1) and second connecting plate (2).
- 4. the big stroke rod-type damper of performance, its feature exist behind a kind of peak using material according to Claims 2 or 3 In:The open and flat formula damping mesh sheet (31) includes tilting damping mesh sheet (312), the tilting damping mesh sheet (312) and institute The plate face for stating the first connecting plate (1) and second connecting plate (2) is at an acute angle.
- 5. the big stroke rod-type damper of performance, its feature exist behind a kind of peak using material according to claim 1 or 2 In:The damping mesh sheet is that bending-type damps mesh sheet (32).
- 6. the big stroke rod-type damper of performance behind a kind of peak using material according to claim 1, it is characterised in that:Institute State outside plate face on the first connecting plate (1) and second connecting plate (2) and be provided with dowel (4) and bolt hole (5).
- 7. the big stroke rod-type damper of performance behind a kind of peak using material according to claim 1, it is characterised in that:Hang down Extension (6) directly is additionally provided with the both ends of the rod-type damping piece of connecting board surface, the extension (6) extends through described First connecting plate (1) and second connecting plate (2).
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CN201710998657.5A CN107816360A (en) | 2017-10-24 | 2017-10-24 | Utilize the big stroke rod-type damper of performance behind material peak |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114033440A (en) * | 2021-11-18 | 2022-02-11 | 成都天佑智隧科技有限公司 | Construction method of tunnel supporting structure |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101629432A (en) * | 2009-08-21 | 2010-01-20 | 清华大学 | Shearing-type metal bending energy-wasting damper |
CN202140098U (en) * | 2011-07-22 | 2012-02-08 | 中铁十一局集团有限公司 | Large soft rock deformation tunnel supporting structure based on controllable deformation release |
CN202544161U (en) * | 2012-05-10 | 2012-11-21 | 南京工业大学 | Shearing and bending combined phased yielding mild steel damper |
CN103953375A (en) * | 2014-04-14 | 2014-07-30 | 东北大学 | Combined type anchor rod with elastic yielding and great damping characteristics |
CN203769109U (en) * | 2014-03-17 | 2014-08-13 | 江苏省城市规划设计研究院 | Combined multi-stage yielding mild steel damper |
CN106401003A (en) * | 2016-11-22 | 2017-02-15 | 上海天华建筑设计有限公司 | Multi-working condition work mild steel energy dissipation machine |
CN206439059U (en) * | 2017-01-10 | 2017-08-25 | 中铁第一勘察设计院集团有限公司 | It is a kind of to be used for the energy dissipating supporting construction in tunnel under large deformation wall rock condition |
CN207332905U (en) * | 2017-10-24 | 2018-05-08 | 仇文革 | Utilize the big stroke rod-type damper of performance behind material peak |
-
2017
- 2017-10-24 CN CN201710998657.5A patent/CN107816360A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101629432A (en) * | 2009-08-21 | 2010-01-20 | 清华大学 | Shearing-type metal bending energy-wasting damper |
CN202140098U (en) * | 2011-07-22 | 2012-02-08 | 中铁十一局集团有限公司 | Large soft rock deformation tunnel supporting structure based on controllable deformation release |
CN202544161U (en) * | 2012-05-10 | 2012-11-21 | 南京工业大学 | Shearing and bending combined phased yielding mild steel damper |
CN203769109U (en) * | 2014-03-17 | 2014-08-13 | 江苏省城市规划设计研究院 | Combined multi-stage yielding mild steel damper |
CN103953375A (en) * | 2014-04-14 | 2014-07-30 | 东北大学 | Combined type anchor rod with elastic yielding and great damping characteristics |
CN106401003A (en) * | 2016-11-22 | 2017-02-15 | 上海天华建筑设计有限公司 | Multi-working condition work mild steel energy dissipation machine |
CN206439059U (en) * | 2017-01-10 | 2017-08-25 | 中铁第一勘察设计院集团有限公司 | It is a kind of to be used for the energy dissipating supporting construction in tunnel under large deformation wall rock condition |
CN207332905U (en) * | 2017-10-24 | 2018-05-08 | 仇文革 | Utilize the big stroke rod-type damper of performance behind material peak |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114033440A (en) * | 2021-11-18 | 2022-02-11 | 成都天佑智隧科技有限公司 | Construction method of tunnel supporting structure |
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