CN110258597A - A method of it consumes energy for rock bolt shank damping - Google Patents
A method of it consumes energy for rock bolt shank damping Download PDFInfo
- Publication number
- CN110258597A CN110258597A CN201910633789.7A CN201910633789A CN110258597A CN 110258597 A CN110258597 A CN 110258597A CN 201910633789 A CN201910633789 A CN 201910633789A CN 110258597 A CN110258597 A CN 110258597A
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- anchor
- anchor pole
- damping energy
- rock bolt
- bolt shank
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of methods for rock bolt shank damping energy consumption, it include: step A, the quantity for determining anchor pole total length and damping energy consumption concatenation unit and the position on anchor pole, form several anchor pole segments after cutting to anchor pole, and by connecting rod and anchor pole segment assembled in situ；Step B, it drills on slope supported, drills to the projected depth of anchor pole, be put into drilling from damping energy-consumption anchor rod by assembled in situ is good, and protrude into conduit and carry out grouting and reinforcing to from the anchoring section of damping energy-consumption anchor rod；Step C, after the anchoring section from damping energy-consumption anchor rod has certain anchor force, apply anchor rod prestress according to demand and tighten anchor head.Method for rock bolt shank damping energy consumption of the invention, concatenation unit is assembled among rock bolt shank, it can achieve and reduce rock bolt shank vibration, anchor pole is made to generate the purpose that deforms back and forth of stretching by a small margin, to solve the problems, such as in geotechnical engineering that anchor axial force increases sharply under geological process and anchor pole is caused to fail.
Description
Technical field
The present invention relates to Geotechnical Engineering fields, particularly, are related to a kind of method for rock bolt shank damping energy consumption.
Background technique
China is the extremely serious country of an earthquake disaster.In recent years, slope instability caused by geological process destroys
Phenomenon more increases, and causes huge property loss and casualties to China.Suspension roof support structure is imitated because of its good supporting
Fruit and economy are widely used in slope support engineering.Nevertheless, anchor pole is drawn in the investigation of existing earthquake disaster
Break or bad phenomenon is drawn to happen occasionally.Anchor structure can be made into flexible structure in the prior art, though it can adapt to side slope generation
Micro-strain, but may occur the phenomenon that anchor axial force surge under geological process, it causes anchor structure to fail, further results in
Slope instability.
Existing result of study shows that geological process lower bolt axle power can rise rapidly, and forms permanent earthquake remnants axis
To stress, that is to say, that geological process lower bolt rod body section is likely to that there is a situation where yield failures.How anchor pole is improved
Anti-seismic performance, to guarantee that unstability is not the hot spot being concerned in geotechnical engineering practice to suspension roof support side slope under geological process
Problem.
Summary of the invention
The purpose of the present invention is to provide a kind of methods for rock bolt shank damping energy consumption, to solve anchor in geotechnical engineering
The problem of bar axle power increases sharply under geological process and anchor pole is caused to fail.
To achieve the above object, the present invention provides a kind of method for rock bolt shank damping energy consumption, the method packets
Include following steps:
Step A, it prepares from damping energy-consumption anchor rod: determining the design total length of anchor pole and the number of damping energy consumption concatenation unit
Amount and the position on anchor pole, cut anchor pole, form several anchor pole segments after cutting, and to cutting rear anchor pole segment
Connection end is handled, and the connecting rod of concatenation unit and anchor pole segment are carried out assembled in situ by connection lantern ring；The spelling
Order member includes steel pile casting, stiff piston, connecting rod, spring I and spring II, and the steel pile casting includes cylinder and is respectively arranged in
End cap at the two-port of the cylinder, sets that there are two the stiff pistons with cylinder coaxial arrangement in the cylinder, and two just
Property piston be one in front and one in back arranged on piston motion direction, between two stiff pistons by spring II be connected, Mei Gesuo
It states and is equipped with connecting rod and spring I between stiff piston and end cap adjacent thereto, one end of the connecting rod is fixed at
On the stiff piston, the other end of the connecting rod extends to outside the steel pile casting after the end cap, I set of the spring
It is located in the connecting rod, and the both ends of I length direction of spring are limited by one end of end cap adjacent thereto and stiff piston；Two
It is equipped on a stiff piston for air stream between the spring I inside the steel pile casting and the different chamber where spring II
Logical venthole；The outer surface of the inner surface of the cylinder and/or the stiff piston for the part that is in contact with the cylinder
For rough surface, the connecting rod can drive stiff piston and the steel pile casting to generate axis under the external force of anchor pole axial direction
To relative displacement, so that the stiff piston and the steel pile casting frictional heat generation earthquake energy；
Step B, selection drill bit compatible with damping energy consumption concatenation unit diameter drills on slope supported, drills
To the projected depth of anchor pole, it is put into drilling from damping energy-consumption anchor rod by assembled in situ is good, and protrude into conduit and consumed to from damping
The anchoring section of energy anchor pole carries out grouting and reinforcing；
Step C, after the anchoring section from damping energy-consumption anchor rod has certain anchor force, apply anchor rod prestress according to demand
And tighten anchor head.
Preferably, be equipped with a concatenation unit connection between the two neighboring anchor pole segment, the connecting rod and
The splice sections of anchor pole segment are equipped with external screw thread, and the connection lantern ring is provided with internal screw thread.
Preferably, described to include 1~10 concatenation unit from damping energy-consumption anchor rod, preferably include 3~5 spellings
Order member.
Preferably, the venthole is the straight hole being arranged along anchor pole axial direction.
Preferably, one is respectively offered on two end caps and crosses rod aperture, and described cross in rod aperture is provided with sealing ring, described
The section of sealing ring is U-shaped groove type, and the groove of the sealing ring is held on the hole wall for crossing rod aperture.
Preferably, the cylindrical form interior surface of the cylinder is rubbing surface.
Preferably, the inner friction surface of the cylinder is frosting or the rubbing surface for being provided with texture structure.
Preferably, the end setting connection ring or connecting hole that the stiff piston is used to connect with spring II, the spring
II is connect in a manner of mounting with the stiff piston.
Preferably, it is welded to connect or is integrally formed between the end of the connecting rod and the stiff piston.
Preferably, the steel pile casting is cylindrical-shaped structure, and the inner surface of the cylinder and the outer surface of stiff piston are in
Cylinder, end cap and the barrel soldering at the steel pile casting both ends are fixed.
Compared with the prior art, the invention has the following advantages:
The method for rock bolt shank damping energy consumption of the invention, concatenation unit is assembled among rock bolt shank, can be with
Achieve the purpose that reduce rock bolt shank vibration, make anchor pole generation is flexible by a small margin to deform back and forth.The rock bolt shank in seismic process
The concatenation unit of damping energy consumption continues working, and seismic energy is constantly converted to thermal energy to gradually dissipate.Concatenation unit work
After, stiff piston automatically resets under the elastic potential energy effect of spring, guarantees the durability of the anchor pole.Rock bolt shank damping
The concatenation unit of energy consumption consumes the seismic energy of anchor pole absorption, reduces the increase amplitude of anchor axial force after shake, avoids anchor pole
Shaft generates excessive axle power and fails, and further increases working performance of the anchor pole under geological process.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram from damping energy-consumption anchor rod of the present invention；
Fig. 2 is the A-A the schematic diagram of the section structure in Fig. 1 from damping energy-consumption anchor rod；
Fig. 3 is the B-B the schematic diagram of the section structure in Fig. 1 from damping energy-consumption anchor rod；
Fig. 4 is the C-C the schematic diagram of the section structure in Fig. 1 from damping energy-consumption anchor rod；
Fig. 5 is the schematic diagram from damping energy-consumption anchor rod using the method for the present invention installation；
Wherein, 1, steel pile casting, 1.1, rubbing surface, 2, stiff piston, 2.1, venthole, 3, connecting rod, 4, spring I, 5, bullet
Spring II, 6, sealing ring, 7, anchor pole segment, 8, connection lantern ring, 9, anchor head, M, damping energy consumption concatenation unit.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be limited according to claim
Fixed and covering multitude of different ways is implemented.
In the embodiment of the present invention it is a kind of for rock bolt shank damping energy consumption method, method the following steps are included:
Step A, it prepares from damping energy-consumption anchor rod: determining that the design total length of anchor pole and damping consume energy concatenation unit M's
Quantity and the position on anchor pole, cut anchor pole, form several anchor pole segments 7 after cutting, and to cutting rear anchor pole section
The connection end of section 7 is handled, and the connecting rod 3 of concatenation unit M and anchor pole segment 7 are carried out live dress by connection lantern ring 8
Match；Concatenation unit M includes steel pile casting 1, stiff piston 2, connecting rod 3, spring I 4 and spring II 5, and steel pile casting 1 includes cylinder and divides
The end cap not being installed at the two-port of cylinder, sets that there are two the stiff pistons 2 with cylinder coaxial arrangement in cylinder, and two just
Property piston 2 on piston motion direction one in front and one in back be arranged and the inner cavity of steel pile casting is separated into three chambers；Two rigidity are living
It is connected between plug 2 by spring II 5, connecting rod 3 and spring I 4 is equipped between each stiff piston and end cap adjacent thereto,
One end of connecting rod 3 is fixed on stiff piston, and the other end of connecting rod 3 extends to outside steel pile casting 1 after end cap, bullet
Spring I 4 is set in connecting rod, and the both ends of I 4 length direction of spring are limited by one end of end cap adjacent thereto and stiff piston
Position；It is equipped on two stiff pistons 2 for air stream between the spring I inside steel pile casting 1 and the different chamber where spring II
Logical venthole 2.1；The inner surface and stiff piston of cylinder are rough surface, connection for the outer surface for the part that is in contact with cylinder
Bar 3 can drive stiff piston 2 and steel pile casting to generate axially opposing displacement under the external force of anchor pole axial direction, so that rigidity
Piston and steel pile casting frictional heat generation earthquake energy；
Step B, selection drill bit compatible with damping energy consumption concatenation unit M diameter drills on slope supported, bores
Hole is put into assembled in situ is good in drilling to the projected depth of anchor pole from damping energy-consumption anchor rod, and protrudes into conduit to from damping
The anchoring section of energy-consumption anchor rod carries out grouting and reinforcing；
Step C, after the anchoring section from damping energy-consumption anchor rod has certain anchor force, apply anchor rod prestress according to demand
And tighten anchor head 9.
In present embodiment, the length of anchor pole can achieve more than ten to 20 meters, according to the requirement of application scenarios come
Design quantity and the position of concatenation unit.Every includes 1~10 concatenation unit from damping energy-consumption anchor rod, preferably includes 3~5
Concatenation unit.
It is a kind of from damping energy-consumption anchor rod, including at least two anchor pole segments 7, at least two connector sleeves referring to Fig. 1 to Fig. 4
Ring 8 and at least one concatenation unit are equipped with a concatenation unit connection, extension bar and anchor between each adjacent two anchor pole segment 7
The splice sections of bar segment are equipped with external screw thread, connect and are provided with internal screw thread on lantern ring 8.In present embodiment, the length of anchor pole
Degree can achieve more than ten to 20 meters, and one whole anchor pole is truncated into several anchor pole segments and (is set according to the requirement of application scenarios
Count quantity and the position of concatenation unit).The anchor pole is assembled anchor pole, installs several concatenation units, such as 1~10 on every anchor pole
It is a, preferably 3~5.
In a specific embodiment, the purpose that venthole is set be so that two stiff pistons axial movement not by
Limit.Venthole is not necessarily axial hole, it is only necessary to be the through-hole being connected between three chambers, and the cross-sectional shape of through-hole
Also unrestricted；It is preferred that venthole 2.1 is the straight hole being arranged along anchor pole axial direction.
In a specific embodiment, the inner surface of cylinder is rough surface；Stiff piston is for the contact portion that connects with cylinder
The outer surface divided is also rough surface, has certain pretightning force with the rough surface inner wall of cylinder, can produce friction when sliding relatively
Power.The cylindrical form interior surface of cylinder is rubbing surface 1.1；Preferably, the inner friction surface of cylinder for frosting or is provided with lines knot
The rubbing surface of structure.When the rubbing surface 1.1 of stiff piston and cylinder generates axially opposing displacement, the friction of stiff piston and cylinder
Friction counterforce between face can generate energy loss.In present embodiment, connected between two stiff pistons with spring II, a side
Face, spring can bear biggish pulling force or pressure, and stiff piston is promoted to generate duplicate back and forth movement, drive stiff piston
Negative work is done with the inner friction surface of cylinder, thus earthquake energy；It on the other hand, can be in spring II after geological process
Concatenation unit is promoted to reset under elastic pulling force or pressure effect.
In a kind of specific embodiment, a diameter is offered on two end caps of steel pile casting respectively as d2 and cross bar
The sealing ring 6 that ring structure is provided in rod aperture is crossed in hole, and the section of sealing ring is U-shaped groove type, and the groove of sealing ring is held in
It crosses on the hole wall of rod aperture, d2 is greater than the diameter d1 of connecting rod but is less than the outside diameter d 3 of spring I, so that spring will not be run from the hole
Out；Meanwhile connecting rod can be free to slide in sealing ring.The setting of sealing ring can increase the envelope of steel pile casting in present embodiment
Closing property avoids mud, underground water etc. from flowing backwards into inside steel pile casting.Sealing ring is specially rubber seal, but is needed herein
Bright, as long as elastic material, the material of sealing ring 6 can also be metal, plastics etc..
In a kind of specific embodiment, the end setting hook or connecting hole that stiff piston 2 is used to connect with spring II,
Between spring II and stiff piston 2 using hook connection by the way of, such as stiff piston 5 end be arranged a connection ring or
Connecting hole hangs over spring II above, and welded connecting is not selected in connection herein, because intensity can be high by the way of hook connection
Much, it is able to satisfy overall performance requirement.It is not required to be fixedly connected between spring I and stiff piston, because spring I only will receive pressure
Power, without under tension.In present embodiment, three springs are set in steel pile casting, make concatenation unit that there is preferably elasticity,
It is adapted to deforming back and forth under geological process repeatedly.
In a kind of specific embodiment, between the end and stiff piston 2 of connecting rod 3 be welded to connect or one at
Type.
In a kind of specific embodiment, steel pile casting is 1 cylindrical-shaped structure, the end cap and barrel soldering at steel pile casting both ends
It is fixed rather than be integrally formed, structure setting rationally, ease of assembly.
In conjunction with referring to Fig. 5, the power that side slope pours out deformation first in embodiment of the present invention passes to anchor head, anchor head again
The power is transmitted to anchor pole.Anchor pole is used general with Vierendeel girder or campshed, and anchor head tightens fixation, side slope after anchor pole applies prestressing force
Deformation is bigger, and the power that anchor pole holds side slope is bigger.The axle power of general anchor pole is all so that the pulling force that anchor pole elongates.
In a kind of specific embodiment, connecting rod realizes that the splicing with anchor pole segment assembles by connection lantern ring.Even
External screw thread is equipped in the splice sections of extension bar and anchor pole segment, connection lantern ring 8 is provided with internal screw thread；Connecting rod and anchor pole segment
External screw thread is convenient in the internal screw thread for being screwed into connection lantern ring 8；Remaining section is smooth disc, passes through steel pile casting convenient for connecting rod
Round-trip displacement is realized in the rubber hole of sealing ring.
In a kind of specific embodiment, the material of connecting rod is identical as anchor pole, and the intensity to guarantee the two is consistent；It is excellent
Choosing is both for steel.More there is choosing, the material of stiff piston is also identical as anchor pole.
In a kind of specific embodiment, its buffering is still able to maintain after applying prestressing force.It is transmitted to from anchor pole
Prestressing force in connecting rod, on the one hand, mainly undertaken by the spring II between two stiff pistons；On the other hand, by two sides
The spring I of stiff piston and steel pile casting end share, meanwhile, spring I can effectively prevent stiff piston and steel pile casting two
Side hair gives birth to rigid collision and loses cushioning effect.
In a kind of specific embodiment, Rock And Soil can be well adapted in digging process from damping energy-consumption anchor rod
The normal construction of generation deforms, and the pressure that the deformation of anchor pole is converted to spring is passed to steel pile casting by the presence of spring I, and rigidity is living
Plug will not occur rigid collision and the concatenation unit is caused to lose cushioning effect with steel pile casting two sides end, will not be because of side slope
Deformation significantly increases the initial axle power of anchor pole.
In a kind of specific embodiment, live assembly company can be carried out with anchor pole from the concatenation unit of damping energy-consumption anchor rod
It connects, and is mounted on the appropriate position of anchor pole as needed, same root anchor pole can also install multiple concatenation units, to play it
Maximum effect.
In a kind of specific embodiment, the seismic energy that anchor pole absorbs can gradually be converted from damping energy-consumption anchor rod
The thermal energy that friction generates when relative displacement occurs for cyclic annular rubbing surface, further increases workability of the anchor pole under geological process
Energy.
In a kind of specific embodiment, when suspension roof support side slope generates construction Deformation in digging process or applies pre-
When stress, anchor axial force be will increase, and it is mobile to 1 two ends of steel pile casting that the connecting rod being connected with anchor pole can haul stiff piston 2.When
When the sum of the pulling force of spring II 5 and the pressure of spring I 4 are balanced with anchor axial force, stiff piston 2 is no longer moved, the presence of spring
Stiff piston 2 is set not remain to play with the raw rigid collision of 1 two side ends hair of steel pile casting, anchor pole splicing damping energy consumption damping unit
Cushioning buffer effect.
Using the method for the present invention installation the working method from damping energy-consumption anchor rod approximately as:
In seismic process, slope soil can generate biggish deformation, and anchor pole generates tension and compression repeatedly with the deformation of the soil body
Deformation.When anchor pole is stretched, the connecting rod 3 being connected with anchor pole segment 7 can haul stiff piston 2 and press to steel pile casting two sides are mobile
Contracting spring I 4, spring I 4 accumulates elastic potential energy and pressure is passed to steel pile casting 1, while spring II 5 also increases because of being stretched
Big pulling force.Its coarse outer wall in sliding process of stiff piston 2 rubs repeatedly with steel pile casting inner wall, and friction counterforce will form energy
Amount loss, the seismic energy that consumption anchor pole absorbs.When side slope deforms under geological process toward opposite direction, anchor pole unloads power, damping
Stiff piston 2 in the concatenation unit of energy consumption can mutually be drawn close under the effect of the elastic potential energy of spring again, and stiff piston slides back
Energy loss, the seismic energy that consumption anchor pole absorbs can be will form when initial position with wall friction in steel pile casting, friction counterforce again.
In seismic process rock bolt shank damping consume energy concatenation unit continue working, constantly by seismic energy be converted to thermal energy to by
Gradually dissipate.After hours, stiff piston automatically resets concatenation unit under elastic potential energy effect, guarantees the durable of the anchor pole
Property.The concatenation unit of rock bolt shank damping energy consumption consumes the seismic energy of anchor pole absorption, reduces the increasing of anchor axial force after shake
Significantly, it avoids rock bolt shank from generating excessive axle power and fail, further increases working performance of the anchor pole under geological process.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of method for rock bolt shank damping energy consumption, which is characterized in that the described method comprises the following steps:
Step A, it prepares from damping energy-consumption anchor rod: determining the design total length of anchor pole and the number of damping energy consumption concatenation unit (M)
Amount and the position on anchor pole, cut anchor pole, form several anchor pole segments (7) after cutting, and to cutting rear anchor pole section
The connection end of section (7) is handled, by connecting lantern ring (8) for the connecting rod (3) of concatenation unit (M) and anchor pole segment (7)
Carry out assembled in situ；The concatenation unit (M) includes steel pile casting (1), stiff piston (2), connecting rod (3), spring I (4) and bullet
Spring II (5), the steel pile casting (1) include cylinder and the end cap that is respectively arranged at the two-port of the cylinder, in the cylinder
If there are two with cylinder coaxial arrangement stiff piston (2), two stiff pistons (2) on piston motion direction one in front and one in back
It is arranged, is connected between two stiff pistons (2) by spring II (5), each stiff piston and end adjacent thereto
Connecting rod (3) and spring I (4) are equipped between lid, one end of the connecting rod (3) is fixed on the stiff piston,
The other end of the connecting rod (3) extends to the steel pile casting (1) outside after running through the end cap, and the spring I (4) is set in institute
It states in connecting rod, and the both ends of spring I (4) length direction are limited by one end of end cap adjacent thereto and stiff piston；Two
It is equipped on the stiff piston (2) for empty between the different chamber where the steel pile casting (1) internal spring I and spring II
The logical venthole (2.1) of air-flow；The inner surface of the cylinder and/or the stiff piston are for the part that is in contact with the cylinder
Outer surface be rough surface, the connecting rod (3) can drive stiff piston (2) and institute under the external force of anchor pole axial direction
It states steel pile casting and generates axially opposing displacement, so that the stiff piston and the steel pile casting frictional heat generation earthquake energy；
Step B, selection drill bit compatible with damping energy consumption concatenation unit (M) diameter drills on slope supported, drills
To the projected depth of anchor pole, it is put into drilling from damping energy-consumption anchor rod by assembled in situ is good, and protrude into conduit and consumed to from damping
The anchoring section of energy anchor pole carries out grouting and reinforcing；
Step C, after the anchoring section from damping energy-consumption anchor rod has certain anchor force, apply anchor rod prestress according to demand and twist
Tight anchor head (9).
2. the method according to claim 1 for rock bolt shank damping energy consumption, which is characterized in that the two neighboring anchor
It is equipped with the concatenation unit between bar segment (7) to connect, the splice sections of the connecting rod and anchor pole segment are equipped with outer spiral shell
Line, the connection lantern ring (8) are provided with internal screw thread.
3. the method according to claim 1 for rock bolt shank damping energy consumption, which is characterized in that described to consume energy from damping
Anchor pole includes 1~10 concatenation unit, preferably includes 3~5 concatenation units.
4. the method according to claim 1 for rock bolt shank damping energy consumption, which is characterized in that the venthole
(2.1) straight hole to be arranged along anchor pole axial direction.
5. the method according to claim 1 for rock bolt shank damping energy consumption, which is characterized in that on two end caps
It respectively offers one and crosses rod aperture, described cross in rod aperture is provided with sealing ring (6), and the section of the sealing ring is U-shaped groove type, institute
The groove for stating sealing ring is held on the hole wall for crossing rod aperture.
6. the method according to claim 1 for rock bolt shank damping energy consumption, which is characterized in that the cylinder of the cylinder
Shape inner surface is rubbing surface (1.1).
7. the method according to claim 6 for rock bolt shank damping energy consumption, which is characterized in that rub in the cylinder
Wiping face is frosting or the rubbing surface for being provided with texture structure.
8. the method according to claim 1 for rock bolt shank damping energy consumption, which is characterized in that the stiff piston
(2) the end setting connection ring or connecting hole for being connect with spring II, what the spring II was mounted with the stiff piston
Mode connects.
9. the method according to claim 1 for rock bolt shank damping energy consumption, which is characterized in that the connecting rod (3)
End and the stiff piston (2) between be welded to connect or be integrally formed.
10. the method according to claim 1 for rock bolt shank damping energy consumption, which is characterized in that the steel pile casting (1)
For cylindrical-shaped structure, the inner surface of the cylinder and the outer surface of stiff piston are cylindrical, the end at the steel pile casting both ends
Lid is fixed with the barrel soldering.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910633789.7A CN110258597A (en) | 2019-07-15 | 2019-07-15 | A method of it consumes energy for rock bolt shank damping |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910633789.7A CN110258597A (en) | 2019-07-15 | 2019-07-15 | A method of it consumes energy for rock bolt shank damping |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111042127A (en) * | 2019-12-27 | 2020-04-21 | 宁夏大学 | Energy-consumption self-recovery pressure type anchor rod and construction method thereof |
| CN111042126A (en) * | 2019-12-27 | 2020-04-21 | 宁夏大学 | Energy-consuming and shock-absorbing anchor rod and construction method thereof |
| CN112411582A (en) * | 2020-12-04 | 2021-02-26 | 同济大学建筑设计研究院(集团)有限公司 | Reinforcing device, reinforcing assembly and mounting method of reinforcing device |
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| CN111042126A (en) * | 2019-12-27 | 2020-04-21 | 宁夏大学 | Energy-consuming and shock-absorbing anchor rod and construction method thereof |
| CN111042126B (en) * | 2019-12-27 | 2021-07-20 | 宁夏大学 | Energy-consuming and shock-absorbing anchor rod and construction method thereof |
| CN111042127B (en) * | 2019-12-27 | 2021-07-20 | 宁夏大学 | Construction method of energy-consumption self-recovery pressure type anchor rod |
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Application publication date: 20190920 |