CN112779910A - Anchor rod supporting structure - Google Patents
Anchor rod supporting structure Download PDFInfo
- Publication number
- CN112779910A CN112779910A CN202110049478.3A CN202110049478A CN112779910A CN 112779910 A CN112779910 A CN 112779910A CN 202110049478 A CN202110049478 A CN 202110049478A CN 112779910 A CN112779910 A CN 112779910A
- Authority
- CN
- China
- Prior art keywords
- springs
- rectangular
- hole
- sleeve
- rectangular pressing
- 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.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
Landscapes
- 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 provides an anchor rod supporting structure, which is characterized in that: the anchor rod, the nut, the anchor cushion block, the sleeve, 2 rectangular pressing plates, a plurality of first springs and a plurality of second springs are included; the anchor rod, the nut, the anchoring cushion block, the 2 rectangular pressing plates and the plurality of second springs form a longitudinal yielding mechanism so as to adapt to longitudinal deformation of a rock body; and the anchoring cushion block, the sleeve and the first springs form a transverse yielding mechanism so as to adapt to the transverse deformation of the rock body. The anchor rod supporting structure can adapt to longitudinal and transverse deformation of rock bodies simultaneously, has good restorability, and can be used for slope supporting of earthquake zones.
Description
Technical Field
The invention relates to the technical field of slope support, in particular to an anchor rod support structure.
Background
The anchor bolt support is a reinforcing support mode adopted in surface engineering such as side slopes, rock-soil deep foundation pits and the like and underground chamber construction such as tunnels, stopes and the like, plays an extremely important role in the field of side slope support, and is widely popularized and applied. In some high-stress soft rocks or slope supporting projects which may generate large deformation, a supporting structure is required to have certain deformation capacity so as to adapt to the deformation of rock masses, absorb deformation energy and reduce geological damages such as landslides and the like. The anchor bolt supporting structure in the prior art has certain degeneration capability, but the deformation is unidirectional, when the deformation force of a rock mass is reduced or eliminated, the supporting structure cannot recover the initial fastening force, so that the anchor bolt supporting structure is loosened and loses the supporting capability, and meanwhile, due to the reasons, the anchor bolt supporting structure in the prior art cannot adapt to the vibration of the rock mass and is not suitable for the side slope supporting near an earthquake zone; on the other hand, the anchor bolt supporting structure in the prior art can only adapt to the rock mass deformation along the longitudinal direction of the anchor bolt, but cannot adapt to the transverse deformation, the adaptability is limited, and the supporting effect is not ideal.
Disclosure of Invention
Aiming at the problems of the background art, the invention provides an anchor bolt supporting structure to solve the problems that anchor bolt supporting in the prior art cannot adapt to transverse deformation, is poor in restorability and does not resist earthquake.
In order to achieve the purpose of the invention, the invention provides a bolt supporting structure, which has the innovation points that: the anchor rod, the nut, the anchor cushion block, the sleeve, 2 rectangular pressing plates and a plurality of first springs are included; a rectangular groove is formed in the top surface of the middle of the anchoring cushion block, a through hole is formed in the bottom surface of the middle of the anchoring cushion block, the axial direction of the through hole is perpendicular to the bottom surface of the anchoring cushion block, a plurality of blind holes are formed in the side wall of the through hole, the axial direction of the blind holes is arranged along the radial direction of the through hole, the blind holes are uniformly distributed along the circumferential direction of the through hole, and the diameter of each blind hole is matched with the outer diameter of the first spring; the inner diameter of the sleeve is matched with the outer diameter of the anchor rod, and the outer diameter of the sleeve is smaller than the diameter of the through hole;
the first springs are respectively sleeved in the blind holes, the sleeve is sleeved in the through hole, the outer ends of the first springs are fixedly connected with the outer peripheral surface of the sleeve, and the first springs are kept in a compressed state;
the 2 rectangular pressing plates are all arranged in the rectangular grooves, the initial states of the rectangular pressing plates are arranged in parallel with the bottom surfaces of the anchoring cushion blocks, the 2 rectangular pressing plates are arranged along the left and right directions of the rectangular grooves, arc grooves are formed in the side edges of the rectangular pressing plates, the openings of the arc grooves of the 2 rectangular pressing plates are opposite, the 2 arc grooves are opposite to the through holes, and the diameters of the arc grooves are larger than those of the anchor rods; a hinge shaft is arranged in the middle of each rectangular pressing plate, two ends of the hinge shaft are respectively hinged with the front side wall and the rear side wall of each rectangular groove, the rectangular pressing plates can rotate around the hinge shafts, a plurality of second springs are arranged between the rectangular pressing plates and the bottom surfaces of the rectangular grooves, the second springs are uniformly distributed on two sides of each hinge shaft, and the second springs are in a compressed state in an initial state;
the anchor rod suit is in the sleeve, the anchor rod suit is in 2 the circular arc inslot, the upper portion of anchor rod is provided with the screw thread section, the nut suit is in on the screw thread section, the downside of nut and 2 the last side of rectangle clamp plate all keeps contact.
Preferably, the number of the first springs is 4, and the number of the blind holes is 4.
The principle of the invention is as follows:
among the prior art, anchor bolt support comprises stock, stock backing plate and nut usually, and in order to overcome prior art's defect, this application has innovated and has improved the stock backing plate: in fact, anchor cushion, sleeve, rectangle clamp plate, first spring and second spring in this application constitute new stock backing plate jointly, wherein stock, nut, anchor cushion, rectangle clamp plate and second spring constitute and vertically let the pressing mechanism, and sleeve, first spring and anchor cushion constitute and transversely let the pressing mechanism.
When the rock mass deforms along the longitudinal direction of the anchor rod to extrude the anchoring cushion block, the longitudinal yielding mechanism plays a main role, the rock mass pushes the anchoring cushion block to extrude towards the nut direction, at the moment, the two rectangular pressing plates rotate around the hinge shafts of the two rectangular pressing plates, the rectangular pressing plate on the left side of the anchor rod rotates clockwise, the rectangular pressing plate on the right side of the anchor rod rotates anticlockwise, the second spring between the hinge shafts of the two rectangular pressing plates is further compressed, the compression elasticity of the second spring is increased, the second spring on the outer side of the hinge shafts of the two rectangular pressing plates extends, the compression elasticity of the second spring is reduced, even tensile elasticity is generated, and deformation energy applied to the anchor rod supporting structure by the rock mass is absorbed through deformation of the second spring; when the rock mass warp to the opposite direction, the distance between anchor cushion and the nut grow gradually, and the second spring between the hinge of two rectangle clamp plates extends gradually under the effect of resilience force this moment, and the second spring outside the hinge of two rectangle clamp plates shortens gradually, and the left rectangle clamp plate anticlockwise rotation of stock, the rectangle clamp plate clockwise rotation on stock right side, until recovering initial condition, the deformation energy on the stock supporting construction obtains the release. The adaptive deformation range of the structure can be obtained by calculation according to parameters such as rock mass materials, structures and the like in the prior art, so that the deformation range of the anchor bolt supporting structure can meet the requirement, and the anchor bolt supporting structure is always kept in a tensioning state.
When the rock mass produced along stock transverse deformation, transversely let the pressure mechanism play the primary role, the sleeve changes with the interval of the through-hole of anchor cushion, and partial first spring compression, partial first spring extension to the realization is to the absorption of horizontal deformation energy, and when warping reverse, the first spring extension of pressurized, the first spring withdrawal that is drawn, thereby the release deformation energy.
When the rock mass is subjected to compound deformation (longitudinal deformation and transverse deformation occur simultaneously), the longitudinal yielding mechanism and the transverse yielding mechanism act simultaneously to absorb and release deformation energy.
When the rock body vibrates, the longitudinal yielding mechanism and the transverse yielding mechanism repeatedly execute the actions so as to absorb the vibration deformation energy.
The economic nature of comprehensive consideration and the horizontal effect of letting press of assurance have 4, first spring, the blind hole has 4, and 4 are transversely let press the part all around four directions of evenly arranging of circumferencial direction.
Therefore, the invention has the following beneficial effects: the application the anchor bolt supporting construction can adapt to the vertical and horizontal deformation of rock mass simultaneously, the resilience is good, difficult not hard up inefficacy can adapt to earthquake environment.
Drawings
The drawings of the present invention are described below.
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
fig. 3 is a schematic structural diagram of the transverse yielding mechanism.
In the figure: 1. an anchor rod; 2. a nut; 3. anchoring the cushion block; 4. a sleeve; 5. a rectangular pressing plate; 6. a first spring; 7. a second spring.
Detailed Description
The present invention will be further described with reference to the following examples.
The anchor bolt supporting structure shown in the attached drawings 1 and 2 comprises an anchor bolt 1, a nut 2, an anchor cushion block 3, a sleeve 4, 2 rectangular pressing plates 5 and 4 first springs 6; a rectangular groove is formed in the top surface of the middle of the anchoring cushion block 3, a through hole is formed in the bottom surface of the middle of the anchoring cushion block 3, the axial direction of the through hole is perpendicular to the bottom surface of the anchoring cushion block 3, 4 blind holes are formed in the side wall of the through hole, the axial direction of the blind holes is arranged along the radial direction of the through hole, the 4 blind holes are uniformly distributed along the circumferential direction of the through hole, and the diameter of each blind hole is matched with the outer diameter of the first spring 6; the inner diameter of the sleeve 4 is matched with the outer diameter of the anchor rod 1, and the outer diameter of the sleeve 4 is smaller than the diameter of the through hole;
as shown in fig. 3, 4 first springs 6 are respectively sleeved in the 4 blind holes, the sleeve 4 is sleeved in the through hole, the outer end of the first spring 6 is fixedly connected with the outer peripheral surface of the sleeve 4, and the first spring 6 keeps a compressed state;
the 2 rectangular pressing plates 5 are all arranged in the rectangular grooves, the initial state of each rectangular pressing plate 5 is parallel to the bottom surface of the anchoring cushion block 3, the 2 rectangular pressing plates 5 are arranged along the left and right directions of the rectangular grooves, arc grooves are formed in the side edges of the rectangular pressing plates 5, the openings of the arc grooves of the 2 rectangular pressing plates 5 are opposite, the 2 arc grooves are all opposite to the through holes, and the diameters of the arc grooves are larger than the diameter of the anchor rod 1; the middle part of the single rectangular pressing plate 5 is provided with a hinge shaft, two ends of the hinge shaft are respectively hinged with the front side wall and the rear side wall of the rectangular groove, and the rectangular pressing plate 5 can rotate around the hinge shaft. In this embodiment, for structure and simple to operate, set up the through-hole in the middle part of rectangular clamp plate 5, also set up the through-hole of the same size respectively simultaneously on the corresponding preceding lateral wall of recess, adopt a hinge that matches with above-mentioned through-hole to pass lateral wall through-hole before the recess, rectangular clamp plate 5's through-hole and lateral wall through-hole behind the recess in proper order, realize rectangular clamp plate 5 and recess front and back lateral wall's articulated connection, in fact, also can adopt other hinge structure forms of prior art. A plurality of second springs 7 are arranged between the rectangular pressing plate 5 and the bottom surface of the rectangular groove, the second springs 7 are uniformly distributed on two sides of the hinge shaft, and the second springs 7 are in a compressed state in an initial state;
the 1 suit of stock is in the sleeve 4, 4 suits of stock are 2 the circular arc inslot, the upper portion of stock 1 is provided with the screw thread section, 2 suits of nut are in on the screw thread section, 2 downside and 2 of nut the side all keeps in contact on the rectangular pressing plate 5.
Claims (2)
1. A bolting configuration which characterized in that: the anchor rod fixing device comprises an anchor rod (1), a nut (2), an anchor cushion block (3), a sleeve (4), 2 rectangular pressing plates (5) and a plurality of first springs (6); a rectangular groove is formed in the top surface of the middle of the anchoring cushion block (3), a through hole is formed in the bottom surface of the middle of the anchoring cushion block (3), the axial direction of the through hole is perpendicular to the bottom surface of the anchoring cushion block (3), a plurality of blind holes are formed in the side wall of the through hole, the axial direction of the blind holes is arranged along the radial direction of the through hole, the blind holes are uniformly distributed along the circumferential direction of the through hole, and the diameter of each blind hole is matched with the outer diameter of the first spring (6); the inner diameter of the sleeve (4) is matched with the outer diameter of the anchor rod (1), and the outer diameter of the sleeve (4) is smaller than the diameter of the through hole;
the first springs (6) are respectively sleeved in the blind holes, the sleeve (4) is sleeved in the through hole, the outer ends of the first springs (6) are fixedly connected with the outer peripheral surface of the sleeve (4), and the first springs (6) are kept in a compressed state;
the 2 rectangular pressing plates (5) are all arranged in the rectangular grooves, the initial state of each rectangular pressing plate (5) is parallel to the bottom surface of the corresponding anchoring cushion block (3), the 2 rectangular pressing plates (5) are arranged along the left and right directions of the rectangular grooves, arc grooves are formed in the side edges of the rectangular pressing plates (5), openings of the arc grooves of the 2 rectangular pressing plates (5) are opposite, the 2 arc grooves are all opposite to the through holes, and the diameters of the arc grooves are larger than the diameters of the anchor rods (1); a hinge shaft is arranged in the middle of the single rectangular pressing plate (5), two ends of the hinge shaft are respectively hinged with the front side wall and the rear side wall of the rectangular groove, the rectangular pressing plate (5) can rotate around the hinge shaft, a plurality of second springs (7) are arranged between the rectangular pressing plate (5) and the bottom surface of the rectangular groove, the plurality of second springs (7) are uniformly distributed on two sides of the hinge shaft, and the second springs (7) are in a compressed state in an initial state;
stock (1) suit is in sleeve (4), stock (4) suit is 2 the circular arc inslot, the upper portion of stock (1) is provided with the screw thread section, nut (2) suit is in on the screw thread section, the downside and the 2 of nut (2) the side all keeps in contact on rectangular pressing plate (5).
2. The bolting configuration according to claim 1, wherein: the number of the first springs (6) is 4, and the number of the blind holes is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110049478.3A CN112779910A (en) | 2021-01-14 | 2021-01-14 | Anchor rod supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110049478.3A CN112779910A (en) | 2021-01-14 | 2021-01-14 | Anchor rod supporting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112779910A true CN112779910A (en) | 2021-05-11 |
Family
ID=75756739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110049478.3A Pending CN112779910A (en) | 2021-01-14 | 2021-01-14 | Anchor rod supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112779910A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356242A (en) * | 2021-06-25 | 2021-09-07 | 江西省交通科学研究院有限公司 | Slope supporting device and slope supporting method |
| CN113482667A (en) * | 2021-08-19 | 2021-10-08 | 重庆交通大学 | Tunnel steel frame connecting device adapting to two-way deformation |
-
2021
- 2021-01-14 CN CN202110049478.3A patent/CN112779910A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356242A (en) * | 2021-06-25 | 2021-09-07 | 江西省交通科学研究院有限公司 | Slope supporting device and slope supporting method |
| CN113482667A (en) * | 2021-08-19 | 2021-10-08 | 重庆交通大学 | Tunnel steel frame connecting device adapting to two-way deformation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112779910A (en) | Anchor rod supporting structure | |
| CN111764940B (en) | Double-layer primary supporting structure of weak surrounding rock tunnel and construction method thereof | |
| CN107100652B (en) | Flexible impact-resistant supporting method and device | |
| WO2021052192A1 (en) | High stress rock burst roadway bolt, design method and working method | |
| CN110016962A (en) | A kind of Aseismic Steel Structures bracket | |
| CN215518748U (en) | Anchor rod supporting structure | |
| CN110259495A (en) | A kind of compound support method based on erosion control decompression anchor cable | |
| CN112963169B (en) | Tunnel excavation large deformation strong supporting device | |
| CN214535091U (en) | Super high-rise concrete pump pipe shock attenuation fixed bolster | |
| CN213390156U (en) | Foundation pit corner supporting mechanism | |
| CN211081929U (en) | Constant-resistance large-deformation bamboo joint type anchor rod with alternate positive and negative Poisson ratios | |
| CN215292549U (en) | Energy-absorbing anchor rod suitable for soft rock large deformation and high stress geological tunnel | |
| CN102392662A (en) | Bent dynamic and static combined anchor rod | |
| CN110847423A (en) | Shear wall structure with semi-steel connecting frame filled with reinforced concrete | |
| CN207436110U (en) | A kind of Anti-quaking foundation structure | |
| CN108999337A (en) | A kind of more limb circular columns and its assembly method of built-in stem recoverable function | |
| CN113775355A (en) | Rock mass stable type supporting device for rock burst prevention in tunnel excavation and construction method thereof | |
| CN112081252B (en) | Mounting, connecting and reinforcing device for building steel structure | |
| CN212716696U (en) | Self-adaptive large-deformation tunnel telescopic grouting anchor rod | |
| CN204716270U (en) | A kind of large deformation constant-resistance periodically pressure-relieving achor bar | |
| CN210483772U (en) | Scour protection decompression anchor rope | |
| CN211038692U (en) | Energy dissipation anchor rod device of flexible protective net for rock burst | |
| CN107217583B (en) | A kind of continuous bridge strut damping device of acceleration activation | |
| CN202284476U (en) | Curved anchor rod with static and dynamic combined function | |
| CN202280468U (en) | Welded-type dynamic and static combined anchor rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |