CN110273419A - A kind of rock mass anchor pole and construction method - Google Patents
A kind of rock mass anchor pole and construction method Download PDFInfo
- Publication number
- CN110273419A CN110273419A CN201910719774.2A CN201910719774A CN110273419A CN 110273419 A CN110273419 A CN 110273419A CN 201910719774 A CN201910719774 A CN 201910719774A CN 110273419 A CN110273419 A CN 110273419A
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- China
- Prior art keywords
- rod
- rock mass
- anchor pole
- expands
- expansion
- Prior art date
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- 239000011435 rock Substances 0.000 title claims abstract description 113
- 238000010276 construction Methods 0.000 title claims abstract description 17
- 238000004873 anchoring Methods 0.000 claims abstract description 62
- 230000003014 reinforcing effect Effects 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000011440 grout Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 5
- 231100000241 scar Toxicity 0.000 description 7
- 239000004568 cement Substances 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
-
- 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
Abstract
The application discloses a kind of rock mass anchor pole and construction method, including the body of rod, first expands body and second expand body.The body of rod includes rock anchorage section and concrete anchoring section in the longitudinal direction, and rock anchorage section is for being placed in the anchor hole constructed on rock mass.First, which expands body, is arranged in the body of rod, and is located at rock anchorage section, and first expands between body and the inner wall of anchor hole with gap.Second, which expands body, is arranged in the body of rod, and is located at concrete anchoring section.Technical solution provided by the present application is able to solve existing anchor pole and is easy the problem of deviating from anchoring body.
Description
Technical field
This application involves technical field of construction, in particular to a kind of rock mass anchor pole and construction method.
Background technique
In permanent rock side slope harnessing project, it is often used anchored bolt retaining wall support form.Due to natural rock slope
It is uneven, it generally requires and fills concrete between barricade and scar.Have between concrete and scar in order to guarantee filling
It is reliably connected, anchor pole is set usually between concrete and scar.
However, often there is the case where anchor pole is deviate from anchoring body since the anchor force that existing anchor pole provides is limited.
Summary of the invention
This application provides a kind of rock mass anchor pole and construction method, rock mass anchor pole and construction method are able to solve existing anchor
Bar is easy the problem of deviating from anchoring body.
In a first aspect, providing a kind of rock mass anchor pole, including the body of rod, the first expansion body and second expand body.The body of rod is in length
It include rock anchorage section and concrete anchoring section on direction, rock anchorage section is for being placed in the anchor hole constructed on rock mass.The
One, which expands body, is arranged in the body of rod, and is located at rock anchorage section, and first expands between body and the inner wall of anchor hole with gap.Second expansion body is set
It sets in the body of rod, and is located at concrete anchoring section.
In above scheme, a kind of rock mass anchor pole is provided, which is applied between concrete and scar, mixed to guarantee
There is reliable connection between solidifying soil and scar.When anchored bolt retaining wall supporting construction, the rock anchorage section of the body of rod and the first expansion body are
In the anchor hole on rock mass, the watering pours water mud into anchor hole, wherein due to having between the first expansion body and the inner wall of anchor hole
Gap enables cement slurry to be poured to the bottom end of anchor hole, guarantees that rock anchorage section and the first expansion body can be by cement slurries
It is covered, rock anchorage section and the first expansion body is fixed in anchor hole.After carrying out casting concrete outside, concrete anchor
Gu section and the second expansion body can be fixed in concrete.That is, the body of rod will be in anchoring body, since the first expansion body and second expands
The presence of body, the more existing anchor pole of rock mass anchor pole and anchoring body have bigger contact area, and rock mass anchor pole is mentioned
The bigger anchor force supplied, the case where avoiding rock mass anchor pole from being deviate from by anchoring body.
In one possible implementation, the first expansion body includes multiple first expansion parts, multiple first expansion part around rods
The axis of body is fixed on the periphery of the body of rod.
In above scheme, multiple first expansion parts are fixed on the periphery of the body of rod around the axis of the body of rod, that is, multiple first expansions
Part the body of rod radial direction, when with rock anchorage section be it is whole treat when, the first expansion part of radial direction setting can
The cross-sectional area for effectively increasing rock anchorage section, to effectively increase the contact surface of rock anchorage section and anchoring body
Product.
Optionally, in one possible implementation, the first expansion part is reinforcing bar.
In above scheme, using multiple reinforcing bars as the first expansion part, multiple reinforcing bars are fixed around the axis of the body of rod
In the periphery of the body of rod.Wherein, easily fabricated since reinforcing bar is at low cost, therefore the first expansion body is constituted with multiple reinforcing bars, it is conducive to rock mass anchor
The popularization and use of bar.
Optionally, in one possible implementation, first expands body as plate-like expansion part, and plate-like expands part and is arranged in the body of rod.
In above scheme, plate-like expands part and is threaded through on the body of rod as the first expansion part, can effectively increase rock anchorage
Contact area between section and anchoring body.
Optionally, in one possible implementation, the second expansion body includes multiple second expansion parts, multiple second expansions
Part is fixed on the periphery of the body of rod around the axis of the body of rod.
In above scheme, multiple second expansion parts are fixed on the periphery of the body of rod around the axis of the body of rod, that is, multiple second expansions
Part the body of rod radial direction, when with concrete anchoring section be it is whole treat when, in the second expansion part energy of radial direction setting
Enough cross-sectional areas for effectively increasing rock anchorage section, to effectively increase contact of the concrete anchoring section with anchoring body
Area.
Optionally, in one possible implementation, the second expansion part is reinforcing bar.
In above scheme, using multiple reinforcing bars as the second expansion part, multiple reinforcing bars are fixed around the axis of the body of rod
In the periphery of the body of rod.Wherein, easily fabricated since reinforcing bar is at low cost, therefore the second expansion body is constituted with multiple reinforcing bars, it is conducive to rock mass anchor
The popularization and use of bar.
Optionally, in one possible implementation, the second expansion part is dendritic expansion part, and dendritic expansion part favours the body of rod
Axis and one end be fixed on the periphery of the body of rod.
It is dendritic to expand that part favours the axis of the body of rod and the periphery of the body of rod is fixed in one end, that is, with concrete in above scheme
Anchoring section is whole when treating, concrete anchoring section in the radial direction, dendritic expansions part collectively defines concrete with the body of rod
Anchoring section and anchoring body contact surface in the radial direction, that is, its contact area radially is effectively promoted, in concrete anchoring section
On axial direction, dendritic expansion part is due to being obliquely installed, and in the axial direction, the dendritic different location expanded on part also can be promoted effectively
The concrete anchoring section contact area between the anchoring body at different distance radially.
Optionally, in one possible implementation, second expands body as plate-like expansion part, and plate-like expands part and is arranged in the body of rod.
In above scheme, plate-like expands part and is threaded through on the body of rod as the first expansion part, can effectively increase concrete anchor
Gu the contact area between section and anchoring body.
Optionally, in one possible implementation, rock mass anchor pole further includes water string, and water string is sheathed on rock
The junction of body anchoring section and concrete anchoring section.
Second aspect provides a kind of construction method of rock mass anchor pole comprising:
It constructs on rock mass anchor hole；
The rock anchorage section for the rock mass anchor pole that first aspect provides is put into anchor hole；
The grout injection into anchor hole；
The position for adjusting the water string being set on the body of rod of rock mass anchor pole, makes one end of water string be located at anchor hole
Interior, the other end of water string is located at outside anchor hole；
The grout injection into water string；
The casting concrete on rock mass makes concrete bury the concrete anchoring section of rock mass anchor pole.
It in above scheme, is constructed by the construction method of rock mass anchor pole, rock mass anchor pole is enabled to effectively to connect
Concrete and rock mass.Wherein, the first expansion body and the second expansion body are capable of increasing the contact area between the body of rod and anchoring body, to make
It obtains rock mass anchor pole and is capable of the bigger anchor force that more existing anchor pole provides.Meanwhile water string has been used in this construction method,
It can be avoided water and flows between the body of rod and anchoring body, lead to the case where loosening between the body of rod and anchoring body.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of rock mass anchor pole in the embodiment of the present application；
Fig. 2 is the first structural schematic diagram for expanding body in the embodiment of the present application；
Fig. 3 is the structural schematic diagram of another rock mass anchor pole in the embodiment of the present application；
Fig. 4 is the structural schematic diagram of another rock mass anchor pole in the embodiment of the present application.
Icon: 10- rock mass anchor pole；The 11- body of rod；11a- rock anchorage section；11b- concrete anchoring section；12- first expands body；
12a- reinforcing bar；13- second expands body；14- water string；10A- concrete；10B- rock mass；10C- anchor hole；20- plate-like expands part；30-
Dendritic expansion part.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below claimed
Scope of the present application, but be merely representative of the selected embodiment of the application.Based on the embodiment in the application, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model of the application protection
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the embodiment of the present application, it is to be understood that term " center ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings,
This application product using when the orientation or positional relationship usually put or those skilled in the art usually understand
Orientation or positional relationship, be merely for convenience of description the application and simplify description, rather than the equipment of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
In addition, term " first ", " second " etc. are only used for distinguishing description, it is not understood to indicate or imply relatively important
Property.
In the description of the embodiment of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, term
" setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to detachably connect
It connects, or is integrally connected；It can be directly connected, can also can be inside two elements indirectly connected through an intermediary
Connection.For the ordinary skill in the art, above-mentioned term in this application specific can be understood with concrete condition
Meaning.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
Below in conjunction with attached drawing, the technical solution in the application is described.
The present embodiment provides a kind of rock mass anchor pole 10, be able to solve that existing anchor pole is easy to deviate from anchoring body is asked
Topic.
Referring to FIG. 1, Fig. 1 shows the specific structure of rock mass anchor pole 10 in the present embodiment.
Rock mass anchor pole 10 includes that the body of rod 11, first expands body 12 and the second expansion body 13.
The body of rod 11 includes rock anchorage section 11a and concrete anchoring section 11b, rock anchorage section 11a use in the longitudinal direction
In being placed in the anchor hole constructed on rock mass.Referring to Fig. 1, in fig. 1 it is shown that the part-structure and rock mass of concrete 10A
The part body of 10B, it can be seen in fig. 1 that construction has anchor hole 10C, rock anchorage section 11a to be located in anchor hole 10C at rock mass 10B
And fixed by grout pouring, concrete anchoring section 11b is located in concrete 10A.
First, which expands body 12, is arranged in the body of rod 11, and is located at rock anchorage section 11a, and first expands between body 12 and the inner wall of anchor hole
With gap.Second, which expands body 13, is arranged in the body of rod 11, and is located at concrete anchoring section 11b.
Wherein, the present embodiment provides a kind of rock mass anchor pole 10, which is applied between concrete and scar, with
Guarantee that there is reliable connection between concrete and scar.When anchored bolt retaining wall supporting construction, the rock anchorage section 11a of the body of rod 11 and
First expansion body 12 is the watering pours water mud into anchor hole in the anchor hole on rock mass, wherein due to the first expansion body 12 and anchor hole
Inner wall between there is gap, cement slurry is poured to the bottom end of anchor hole, guarantees that rock anchorage section 11a and first expands
Body 12 can be covered by cement slurry, so that the expansion body 12 of rock anchorage section 11a and first is capable of fixing in anchor hole.Outside into
After row casting concrete, the expansion body 13 of concrete anchoring section 11b and second is capable of fixing in concrete.That is, the body of rod 11 is will be
In anchoring body, the presence for expanding body 12 and the second expansion body 13 due to first, the more existing anchor pole of rock mass anchor pole 10 and anchoring body have
There is bigger contact area, the bigger anchor force that rock mass anchor pole 10 is capable of providing avoids rock mass anchor pole 10 by anchoring
The case where body is deviate from.
Wherein, it should be noted that the quantity of the first expansion body 12 and the second expansion body 13 is not limited, with the present embodiment
For, it can be seen in fig. 1 that the quantity of the first expansion body 12 and the second expansion body 13 is respectively two, that is, two first expansion bodies 12 exist
The setting of the rock anchorage interval section 11a, two second expansion bodies 13 are arranged at the concrete interval anchoring section 11b.In other specific implementations
In mode, the quantity of the first expansion body 12 and the second expansion body 13 can also be respectively one, two, three or four etc., example
Such as, on the same body of rod 11, three first expansion bodies 12 are arranged at the rock anchorage interval section 11a, and two second expansion bodies 13 are in coagulation
The setting of the interval native anchoring section 11b.
Optionally, in a kind of embodiment in the cards, first, which expands body 12, includes multiple first expansion parts, Duo Ge
One expansion part is fixed on the periphery of the body of rod 11 around the axis of the body of rod 11.
Wherein, multiple first expansion parts are fixed on the periphery of the body of rod 11 around the axis of the body of rod 11, that is, multiple first expansion parts
In the radial direction of the body of rod 11, when being that entirety is treated with rock anchorage section 11a, in the first expansion part energy of radial direction setting
Enough cross-sectional areas for effectively increasing rock anchorage section 11a, to effectively increase rock anchorage section 11a and anchoring body
Contact area.
It should be noted that the quantity of the first expansion part can be the quantity such as two, three, four, five.
In the present embodiment, Fig. 2 is referred to, Fig. 2 shows the specific structures that in the present embodiment first expands body 12.
First expansion part is reinforcing bar 12a, and the quantity of the first expansion part is four, that is, the quantity of reinforcing bar 12a is four, four
A reinforcing bar 12a is welded in the periphery of the body of rod 11 around the axis of the body of rod 11, in other specific embodiments, can also for two or
Three or four equal reinforcing bars 12a are welded in the periphery of the rock anchorage section 11a of the body of rod 11 around the axis of the body of rod 11.
Wherein, using multiple reinforcing bar 12a as the first expansion part, enable multiple reinforcing bar 12a solid around the axis of the body of rod 11
It is scheduled on the periphery of the body of rod 11.Wherein, easily fabricated since reinforcing bar 12a is at low cost, therefore the first expansion body is constituted with multiple reinforcing bar 12a
12, conducive to the popularization and use of rock mass anchor pole 10.
It should be noted that due to needing that there are gaps between the first expansion body 12 and the inner wall of anchor hole, therefore, which can be with
It is formed by the gap between two adjacent reinforcing bar 12a, also or between the periphery and anchor hole of reinforcing bar 12a there are gaps.
It should be noted that the second expansion body 13 includes multiple second expansion parts, axis of multiple second expansion parts around the body of rod 11
Line is fixed on the periphery of the body of rod 11.
Wherein, multiple second expansion parts are fixed on the periphery of the body of rod 11 around the axis of the body of rod 11, that is, multiple second expansion parts
In the radial direction of the body of rod 11, when being that entirety is treated with concrete anchoring section 11b, in the second expansion part of radial direction setting
The cross-sectional area of rock anchorage section 11a can effectively be increased, to effectively increase concrete anchoring section 11b and anchoring
The contact area of body.
It should be noted that the second expansion part is reinforcing bar 12a in the present embodiment.Likewise, second expands in the present embodiment
The quantity for opening part is four, that is, the quantity of reinforcing bar 12a is four, and four reinforcing bar 12a are welded in the body of rod 11 around the axis of the body of rod 11
Periphery can be also two or three or four equal reinforcing bars 12a around the axis of the body of rod 11 in other specific embodiments
It is welded in the periphery of the concrete anchoring section 11b of the body of rod 11.
Wherein, the present embodiment also provides a kind of construction method of rock mass anchor pole 10 comprising:
It constructs on rock mass anchor hole；
The rock anchorage section 11a of the above-mentioned rock mass anchor pole 10 provided is put into anchor hole；
The grout injection into anchor hole；
The position for adjusting the water string 14 being set on the body of rod 11 of rock mass anchor pole 10 makes one end position of water string 14
In in anchor hole, the other end of water string 14 is located at outside anchor hole；
The grout injection into water string 14；
The casting concrete on rock mass makes concrete bury the concrete anchoring section 11b of rock mass anchor pole 10.
Wherein, it is constructed by the construction method of rock mass anchor pole 10, enables to rock mass anchor pole 10 effectively to connect mixed
Solidifying soil and rock mass.Wherein, the first expansion body 12 and the second expansion body 13 are capable of increasing the contact area between the body of rod 11 and anchoring body, from
And the bigger anchor force that the more existing anchor pole of rock mass anchor pole 10 is provided.Meanwhile it being used in this construction method anti-
Jacket pipe 14, and fill cement slurry in water string 14 and shut opening floating, water string 14 is kept away
Exempt from water to flow between the body of rod 11 and anchoring body, leads to the case where loosening between the body of rod 11 and anchoring body.
Referring again to Fig. 1, rock mass anchor pole 10 provided in this embodiment further includes water string 14, and water string 14 is arranged
In the junction of rock anchorage section 11a and concrete anchoring section 11b.
It should be noted that in other specific embodiments, first, which expands body 12, expands part 20, plate-like for plate-like referring to Fig. 3
Expand part 20 and is arranged in the body of rod 11.Second, which expands body 13, expands part 20 for plate-like, and plate-like expands part 20 and is arranged in the body of rod 11.Wherein, plate-like expands
Part 20 is threaded through on the body of rod 11 as the first expansion body 12 and the second expansion body 13, can be effectively increased rock anchorage section 11a, be mixed
Solidifying contact area between soil anchoring section 11b and anchoring body.It should be noted that due to first expand body 12 and anchor hole inner wall it
Between need there are gap, in Fig. 3 as can be seen that the plate-like as the first expansion body 12 expands part 20 in order to being contained in anchor hole simultaneously
There are gap between anchor hole, it is less than the plate-like for expanding body 13 as second and expands part 20.
It should be noted that referring to fig. 4, in other specific embodiments, the second expansion part is dendritic expansion part 30, dendritic
Expand that part 30 favours the axis of the body of rod 11 and the periphery of the body of rod 11 is fixed in one end.
Wherein, dendritic to expand that part 30 favours the axis of the body of rod 11 and the periphery of the body of rod 11 is fixed in one end, that is, with concrete
Anchoring section 11b is whole when treating, concrete anchoring section 11b in the radial direction, dendritic expansions part 30 and the common limit of the body of rod 11
Determine concrete anchoring section 11b and anchoring body contact surface in the radial direction, that is, its contact area radially is effectively promoted,
On the axial direction of concrete anchoring section 11b, dendritic expansion part 30 is due to being obliquely installed, in the axial direction, on dendritic expansion part 30 not
The contact surface between anchoring body of the concrete anchoring section 11b radially at different distance also can be effectively promoted with position
Product.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of rock mass anchor pole characterized by comprising
The body of rod, the body of rod include rock anchorage section and concrete anchoring section in the longitudinal direction, and the rock anchorage section is used for
It is placed in the anchor hole constructed on rock mass；
First expands body, and described first, which expands body, is arranged in the body of rod, and is located at the rock anchorage section, and described first expands body and institute
Stating has gap between the inner wall of anchor hole；And
Second expands body, and described second, which expands body, is arranged in the body of rod, and is located at the concrete anchoring section.
2. rock mass anchor pole according to claim 1, which is characterized in that
The first expansion body includes multiple first expansion parts, and the multiple first expansion part is fixed on institute around the axis of the body of rod
State the periphery of the body of rod.
3. rock mass anchor pole according to claim 2, which is characterized in that
First expansion part is reinforcing bar.
4. rock mass anchor pole according to claim 1, which is characterized in that
Described first, which expands body, expands part for plate-like, and the plate-like expands part and is arranged in the body of rod.
5. rock mass anchor pole according to claim 1, which is characterized in that
The second expansion body includes multiple second expansion parts, and the multiple second expansion part is fixed on institute around the axis of the body of rod
State the periphery of the body of rod.
6. rock mass anchor pole according to claim 5, which is characterized in that
Second expansion part is reinforcing bar.
7. rock mass anchor pole according to claim 5, which is characterized in that
Second expansion part is dendritic expansion part, described in dendritic the expansions part favours the axis of the body of rod and one end is fixed on
The periphery of the body of rod.
8. rock mass anchor pole according to claim 1, which is characterized in that
Described second, which expands body, expands part for plate-like, and the plate-like expands part and is arranged in the body of rod.
9. rock mass anchor pole according to claim 1, which is characterized in that
The rock mass anchor pole further includes water string, and the water string is sheathed on the rock anchorage section and the concrete anchor
Gu the junction of section.
10. a kind of construction method of rock mass anchor pole, which is characterized in that
It constructs on rock mass anchor hole；
The rock anchorage section of rock mass anchor pole described in claim 1 is put into the anchor hole；
The grout injection into the anchor hole；
The position for adjusting the water string being set on the body of rod of rock mass anchor pole, makes one end of the water string be located at the anchor
In hole, the other end of the water string is located at outside the anchor hole；
The grout injection into the water string；
The casting concrete on the rock mass makes concrete bury the concrete anchoring section of the rock mass anchor pole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910719774.2A CN110273419A (en) | 2019-08-05 | 2019-08-05 | A kind of rock mass anchor pole and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910719774.2A CN110273419A (en) | 2019-08-05 | 2019-08-05 | A kind of rock mass anchor pole and construction method |
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| CN104389321A (en) * | 2014-10-31 | 2015-03-04 | 中国电建集团成都勘测设计研究院有限公司 | Safety structure of underground building |
| CN104674808A (en) * | 2015-02-28 | 2015-06-03 | 安徽理工大学 | Novel assembly type hollow grouting anchor bolt and construction method thereof |
| CN104674809A (en) * | 2015-03-06 | 2015-06-03 | 中国建筑第八工程局有限公司 | Anti-floating anchor rod structure and construction method thereof |
| WO2018223158A1 (en) * | 2017-05-31 | 2018-12-06 | Ncm Innovations (Pty) Ltd | Rock bolt with water impenetrable sheath |
| CN109629564A (en) * | 2018-12-19 | 2019-04-16 | 成都四海岩土工程有限公司 | A kind of extruding hole reaming of anchor rod and construction method |
| CN210684681U (en) * | 2019-08-05 | 2020-06-05 | 山东建勘集团有限公司 | Rock anchor rod |
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