CN207278277U - Utilize the big stroke cast damper of performance behind material peak - Google Patents
Utilize the big stroke cast damper of performance behind material peak Download PDFInfo
- Publication number
- CN207278277U CN207278277U CN201721373082.XU CN201721373082U CN207278277U CN 207278277 U CN207278277 U CN 207278277U CN 201721373082 U CN201721373082 U CN 201721373082U CN 207278277 U CN207278277 U CN 207278277U
- Authority
- CN
- China
- Prior art keywords
- damper
- connecting plate
- big stroke
- peak
- performance behind
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The big stroke cast damper of performance behind a kind of peak using material, including the first connecting plate, the second connecting plate and damper tube, the plate face face of first connecting plate and second connecting plate is set, and the outer circumferential surface of the damper tube is fixed with the plate face of first connecting plate and the plate face of second connecting plate.In damper 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 cast 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, can be referred to as " constant-resistance device ",
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
The deflection of 300mm-1000mm can persistently occur in the case where providing the working resistance of 120-130kN for bar (rope), pass through anchor pole (rope)
System carries out supporting to tunnel.Using U-shaped steel and slidably, connector, 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 Engineering, because
It is independent work system, and performing preliminary bracing after being excavated in tunnel needs gunite concrete, concrete structure
Variability capacity is limited, once preliminary bracing forms the concrete structure of closing, perseverance is organized large deformation anchor rod (rope) and can be stretched
Contracting steelframe just loses the meaning of its setting.
The content of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of big stroke cast damper of performance behind peak using material,
In damper deformation process, allow country rock to produce contraction distortion while damper cooperates with tunnel structure to surrounding rock supporting, release
Put 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 does not exist
The release of damper yield deformation stage is completed, then the packing stage of damper can provide final safety assurance.
Concrete technical scheme is as follows：
The big stroke cast damper of performance behind a kind of peak using material, including the first connecting plate, the second connecting plate and resistance
Buddhist nun manages, and the plate face face of first connecting plate and second connecting plate is set, the outer circumferential surface of the damper tube and described the
The plate face of one connecting plate and the plate face of second connecting plate are fixed.
The further restriction of parallel technical solution, the cross section of the damper tube is polygon.
Further, the polygon is even number of sides.
The further restriction of parallel technical solution, the cross section of the damper tube is circle.
Damper tube is clamped in centre by connecting plate, when the first connecting plate and the second connecting plate are squeezed power, damper tube
Also it is squeezed, damper tube deforms upon, and deformation mainly divides 3 stages, and the 1st stage was the elastic deformation stage of damper tube, was pressed
Power is linearly increasing with deforming, and the 2nd stage was the surrender residual deformation stage of damper tube, and pressure is constant with deforming, and the 3rd stage was resistance
The compacting deformation stage of Buddhist nun's pipe, pressure increase with deformation, wherein the 2nd stage was the main body of damper tube deformation, adjust damper tube
Radius and thin and thick, adjust the constant pressure value size of bellows.Damper continues large deformation, damper tube under constant pressure
Deformation drives integer support structure to produce contraction distortion, whole so as to fulfill control tunnel structure internal force, release pressure from surrounding rock, increase
The safety coefficient of body structure.
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 adjust behind the hump drag of damper, peak；The deformation direction of damper can control, and work in big stroke
When, deformed damper 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 measured according to the displacement of damper；Damping
Device can be locked with injection or casting concrete to realize the interim function of increasing resistance.
The further restriction of parallel technical solution, the cross section of the damper tube is ellipse.
The further of parallel technical solution limits, and dowel is equipped with first connecting plate and second connecting plate
And bolt hole.
The further restriction of parallel technical solution, the dowel is perpendicular to first connecting plate and second connection
The plate face of plate.
Beneficial effects of the present invention are：
1st, support and deformable, damper itself has some strength, is squeezed in the first connecting plate and the second connecting plate
When, to applying pressure on the axis direction of damper tube, during damper compression, damper cooperates with tunnel structure to enclosing
Allow country rock to produce contraction distortion while petrous branch protects, discharge pressure from surrounding rock, increase the safety coefficient of tunnel structure.
2nd, applicable scope is wide, you can the damper as circumferential direction uses, can also be as the damping of radial direction
Device uses.
3rd, different shape is adapted to, the first connecting plate and the second being adapted to property of connecting plate are designed as straight panel structure, fit
The contact surface of plane is answered, may be designed in the plate of arch bridge-like structure, to adapt to the curved-surface structure of tunnel inner wall, and other are fitted
Answering property adjusts.
4th, easily manufactured, short construction period, can carry out Prefabricated to damper, then in constructing tunnel, carry out
Installation, and the structure of damper is simple, in manufacture cost more, manufacture is also convenient for.
Brief description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention one.
Fig. 2 is the structure diagram of the embodiment of the present invention two.
Fig. 3 is the structure diagram of the embodiment of the present invention three.
Fig. 4 is the structure diagram of the embodiment of the present invention four.
Fig. 5 is the structure diagram when present invention is installed on circumferential.
Fig. 6 is the structure diagram when present invention is installed on radial direction.
Fig. 7 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, so as to make a clearer definition of the protection scope of the present invention.
As shown in Figure 1, embodiment one, the big stroke cast damper of performance behind a kind of peak using material, including first connect
Fishplate bar 1, the second connecting plate 2 and damper tube 3, and be made by mild steel, first connecting plate 1 and second connecting plate 2
Plate face face set, the plate face of the outer circumferential surface of the damper tube 3 and first connecting plate 1 and second connecting plate 2
Plate face is fixed.The cross section of the damper tube 3 is regular hexagon.
As shown in Fig. 2, embodiment two, the big stroke cast damper of performance behind a kind of peak using material, including first connect
The plate face face of fishplate bar 1, the second connecting plate 2 and damper tube 3, first connecting plate 1 and second connecting plate 2 is set, institute
State the outer circumferential surface of damper tube 3 and the plate face of the plate face of first connecting plate 1 and second connecting plate 2 is fixed.The damping
The cross section of pipe 3 is circle.
As shown in figure 3, embodiment three, the big stroke cast damper of performance behind a kind of peak using material, including first connect
The plate face face of fishplate bar 1, the second connecting plate 2 and damper tube 3, first connecting plate 1 and second connecting plate 2 is set, institute
State the outer circumferential surface of damper tube 3 and the plate face of the plate face of first connecting plate 1 and second connecting plate 2 is fixed.The damping
The cross section of pipe 3 is ellipse.
As shown in figure 4, example IV, increases on the basis of embodiment two, first connecting plate 1 and described
Dowel 4 and bolt hole 5 are equipped with second connecting plate 2.The dowel 4 is perpendicular to first connecting plate 1 and described
The plate face of two connecting plates 2.
As shown in figure 5, support and deformation are provided for circumferential direction using the big stroke cast damper of performance behind material peak,
Steelframe 7 is located to be connected using 7 and first connecting plate 1 and second of both sides, that is, steelframe of the big stroke cast damper of performance behind material peak
Fishplate bar 2 is bolted.
As shown in fig. 6, support and deformation are provided for radial direction using the big stroke cast damper of performance behind material peak,
Using the big stroke cast damper of performance behind material peak between country rock 6 and steelframe 7, and the plate face of the first connecting plate 1 and
Steelframe 7 contacts, and the plate face and country rock 6 of the second connecting plate 2 contact.
As shown in fig. 7, damping mesh sheet includes three phases in deformation process, 1, elastic stage, 2, constant-resistance deformation stage,
3rd, 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.
Claims (7)
- A kind of 1. big stroke cast damper of performance behind peak using material, it is characterised in that：Including the first connecting plate (1), The plate face face of two connecting plates (2) and damper tube (3), first connecting plate (1) and second connecting plate (2) is set, institute The outer circumferential surface and the plate face of first connecting plate (1) and the plate face of second connecting plate (2) for stating damper tube (3) are fixed.
- 2. the big stroke cast damper of performance behind a kind of peak using material according to claim 1, it is characterised in that：Institute The cross section for stating damper tube (3) is polygon.
- 3. the big stroke cast damper of performance behind a kind of peak using material according to claim 2, it is characterised in that：Institute It is even number of sides to state polygon.
- 4. the big stroke cast damper of performance behind a kind of peak using material according to claim 1, it is characterised in that：Institute The cross section for stating damper tube (3) is circle.
- 5. the big stroke cast damper of performance behind a kind of peak using material according to claim 1, it is characterised in that：Institute The cross section for stating damper tube (3) is ellipse.
- 6. the big stroke cast damper of performance behind a kind of peak using material according to claim 1, it is characterised in that：Institute State and be equipped with dowel (4) and bolt hole (5) on the first connecting plate (1) and second connecting plate (2).
- 7. the big stroke cast damper of performance behind a kind of peak using material according to claim 6, it is characterised in that：Institute Dowel (4) is stated perpendicular to first connecting plate (1) and the plate face of second connecting plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721373082.XU CN207278277U (en) | 2017-10-24 | 2017-10-24 | Utilize the big stroke cast damper of performance behind material peak |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721373082.XU CN207278277U (en) | 2017-10-24 | 2017-10-24 | Utilize the big stroke cast damper of performance behind material peak |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207278277U true CN207278277U (en) | 2018-04-27 |
Family
ID=61981100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721373082.XU Active CN207278277U (en) | 2017-10-24 | 2017-10-24 | Utilize the big stroke cast damper of performance behind material peak |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207278277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524456A (en) * | 2017-10-24 | 2017-12-29 | 仇文革 | Utilize the big stroke cast damper of performance behind material peak |
-
2017
- 2017-10-24 CN CN201721373082.XU patent/CN207278277U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107524456A (en) * | 2017-10-24 | 2017-12-29 | 仇文革 | Utilize the big stroke cast damper of performance behind material peak |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104373145B (en) | Embedded classification constant-resistance shearing resistance large deformation anchor and method | |
| CN204267064U (en) | Embedded classification constant-resistance shearing resistance large deformation anchor device | |
| CN109184737A (en) | The tunnel prestressing force constraint of pressure energy-absorbing can be allowed to fill liner supporting system and technique | |
| CN102051880B (en) | Detachable anchor | |
| CN107795326A (en) | The construction method of damper and tunnel support structure | |
| CN107524457B (en) | Utilize the big stroke combined damper of performance behind material peak | |
| CN207211435U (en) | A kind of vertical prestressing loam wall | |
| CN107254925A (en) | Vertical prestressing loam wall and its construction method | |
| CN211573533U (en) | Tunnel constraint filling type lining structure capable of adapting to large deformation of surrounding rock | |
| CN201924356U (en) | Detachable anchor rod | |
| CN107524456A (en) | Utilize the big stroke cast damper of performance behind material peak | |
| CN207278277U (en) | Utilize the big stroke cast damper of performance behind material peak | |
| CN102808635B (en) | A kind of swollen shell-type Inner bolt head prestressed anchor and installation and application thereof | |
| CN102828761A (en) | Full-thread glass fiber composite hollow grouting anchor rod | |
| CN107842377A (en) | Utilize the big stroke bellows damper of performance behind material peak | |
| CN207332904U (en) | Utilize the big stroke bellows damper of performance behind material peak | |
| CN101240533A (en) | Pile foundation reinforcement prestressing pile locking method | |
| CN211713958U (en) | Capsule type anchor rod with function of expanding support framework | |
| CN207332905U (en) | Utilize the big stroke rod-type damper of performance behind material peak | |
| CN207278278U (en) | Utilize the big stroke template damper of performance behind material peak | |
| CN104631850A (en) | Concrete column strengthening method of compressive pre-stress steel casing rebar planting extension cross section | |
| CN101892852B (en) | Self-anchored emergency anchor rod and installation method thereof | |
| CN109899098A (en) | A kind of antidetonation pressure limiting anchor pole anchor head | |
| CN107816360A (en) | Utilize the big stroke rod-type damper of performance behind material peak | |
| CN205349352U (en) | A first system suitable for large deformation tunnel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |