CN108035346A - A kind of severely-weathered ground anchor basis in Tibet, which is jumped, breaks into hole system and method - Google Patents
A kind of severely-weathered ground anchor basis in Tibet, which is jumped, breaks into hole system and method Download PDFInfo
- Publication number
- CN108035346A CN108035346A CN201810025454.2A CN201810025454A CN108035346A CN 108035346 A CN108035346 A CN 108035346A CN 201810025454 A CN201810025454 A CN 201810025454A CN 108035346 A CN108035346 A CN 108035346A
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- anchor
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000010276 construction Methods 0.000 claims abstract description 23
- 230000009977 dual effect Effects 0.000 claims abstract description 8
- 239000008267 milk Substances 0.000 claims abstract description 8
- 210000004080 milk Anatomy 0.000 claims abstract description 8
- 235000013336 milk Nutrition 0.000 claims abstract description 8
- 235000002918 Fraxinus excelsior Nutrition 0.000 claims abstract description 5
- 239000002956 ash Substances 0.000 claims abstract description 5
- 239000011440 grout Substances 0.000 claims description 6
- 238000009412 basement excavation Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000002689 soil Substances 0.000 description 7
- 238000005553 drilling Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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
- E02D5/80—Ground anchors
- E02D5/808—Ground anchors anchored by using exclusively a bonding material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
Jumped the present invention relates to a kind of severely-weathered ground anchor basis in Tibet and break into hole system and method, its step：Some anchor hole identification points are identified using ashes in severely-weathered surface of stratum as needed under anchor rod foundation cushion cap, and all anchor hole identification points are numbered；Construct to the anchor hole identification point that numbering is odd number, drill into odd number anchor hole；Respectively to odd number anchor hole carry out anchor pole grouting construction, when be in the milk 24 it is small when after, complete odd number anchor hole construction；Dual numbers anchor hole is constructed respectively, drills into even number anchor hole, and then dual numbers anchor hole carries out anchor pole grouting construction respectively, completes severely-weathered ground anchor basis pore-forming.The present invention is jumped using interval and beaten; anchor pole grouting construction is carried out after anchor hole jumps and breaks into hole; and after ensureing when filling concrete 24 is small; remaining anchor hole jump is carried out again plays construction; it can effectively prevent anchor rod foundation anchor hole collapse hole; application range of the anchor rod foundation in Tibet region is expanded, earth excavation is avoided, protects environmental ecology.
Description
Technical field
The present invention relates to a kind of anchor rod foundation pore-forming system and method, especially with regard to a kind of severely-weathered ground anchor in Tibet
Jump and break into hole system and method in basis.
Background technology
Regional in China, anchor rod foundation is usually used in medium weathering stratum, this kind of stratum weathering trace unobvious, tissue
Structure is more intact, and cranny development is incomplete, and globality is preferable.Usual anchor rod foundation construction is constructed using pneumatic pick, pneumatic pick
In the drilling process that drills, because rock mass strength is high, the vibrations of soil pressure and drilling rod generation will not cause the basis of adjacent pore-forming
Collapse hole, therefore after the completion of anchor hole can continuously construct, then carry out anchor pole grouting construction.
But in China Tibet region, surface layer is due to serious by the corrosion function of High aititude weather and weathering, anchor rod foundation institute
Place stratum is mainly the silt, fine sand, cobble that the 4th system rushes proluvial formation, collapses rubble, the block stone of slide rock, and thickness reaches 3~4m.
But since Tibet region environment and ecological vegetation are fragile, environmental protection requirement is high, does not allow to remove compared with thick-covering, therefore
The severely-weathered stratum of Tibet region, carry out anchor rod foundation construction it is necessary in view of the vibrations in pneumatic pick drilling process and in a row by
One punching causes the extruding of soil uneven, causes the basic collapse hole of adjacent pore-forming.
The content of the invention
Hole system is broken into view of the above-mentioned problems, being jumped the object of the present invention is to provide a kind of severely-weathered ground anchor basis in Tibet
And method, it is suitable for the severely-weathered ground anchor basis pore-forming in Tibet, reach environmental protection, the mesh of earth excavation is reduced or avoided
's.
To achieve the above object, the present invention takes following technical scheme：A kind of severely-weathered ground anchor basis in Tibet, which is jumped, to be beaten
Forming hole method, it is characterised in that comprise the following steps：1) adopted as needed in severely-weathered surface of stratum under anchor rod foundation cushion cap
Some anchor hole identification points are identified with ashes, and all anchor hole identification points are numbered；2) to numbering be odd number anchor hole mark
Know point to construct, drill into odd number anchor hole；3) respectively to odd number anchor hole carry out anchor pole grouting construction, when be in the milk 24 it is small when after,
Complete the construction of odd number anchor hole；4) dual numbers anchor hole is constructed respectively, drills into even number anchor hole, then dual numbers anchor hole respectively
Anchor pole grouting construction is carried out, completes severely-weathered ground anchor basis pore-forming.
Further, the aperture of the odd number anchor hole and even number anchor hole is 120mm.
Further, the hole depth of the odd number anchor hole and even number anchor hole is 3500mm.
Further, the pitch of holes between adjacent the odd number anchor hole and even number anchor hole is more than or equal to 400mm；It is two neighboring
Pitch of holes between the odd number anchor hole or the two neighboring even number anchor hole is more than or equal to 800mm.
Further, jump is carried out using the method for 2~3 anchor holes in interval and breaks into hole.
A kind of severely-weathered ground anchor basis in Tibet, which is jumped, breaks into hole system, it is characterised in that：The system includes anchor rod foundation
Cushion cap cushion cap, anchor hole identification point, odd number anchor hole, even number anchor hole, anchor pole and grout blanket；Below the anchor rod foundation cushion cap cushion cap
Severely-weathered surface of stratum be arranged at intervals with some anchor hole identification points, in the high wind of the odd positions of the anchor hole identification point
Change and offer the odd number anchor hole at stratum, offered at the severely-weathered stratum of the even number position of the anchor hole identification point described
Even number anchor hole；The anchor pole is both provided with the odd number anchor hole and even number anchor hole, and in the anchor pole and the odd number anchor hole
Between and the gap between the anchor pole and the even number anchor hole in be provided with the grout blanket.
Further, the aperture of the odd number anchor hole and even number anchor hole is 120mm.
Further, the hole depth of the odd number anchor hole and even number anchor hole is 3500mm.
Further, the pitch of holes between adjacent the odd number anchor hole and even number anchor hole is more than or equal to 400mm；It is two neighboring
Pitch of holes between the odd number anchor hole or the two neighboring even number anchor hole is more than or equal to 800mm.
Due to taking above technical scheme, it has the following advantages the present invention：1st, the present invention can be in Tibet severely-weatheredly
Anchor rod foundation is used in layer, expands the use scope of anchor rod foundation.2nd, earth excavation can be reduced or avoided in the present invention, and protection is planted
Quilt.Reduce difficulty of construction and operating expenses at the same time.
Brief description of the drawings
Fig. 1 is the anchor rod foundation pore-forming planar structure schematic diagram of the present invention；
Fig. 2 is the anchor rod foundation pore-forming facade structures schematic diagram of the present invention；
Fig. 3 is enlarged diagram at A in Fig. 2；
The jump of anchor hole 1,3,5,7 ... 19 that Fig. 4 is the present invention breaks into hole and floor map of being in the milk；In figure, with oblique line
Circle represent to excavate and the anchor hole that is in the milk, blank circle represent the anchor hole not excavated；
The jump of anchor hole 2,4,6,8 ... 20 that Fig. 5 is the present invention breaks into hole and floor map of being in the milk；In figure, with oblique line
Circle represent completed anchor hole, blank circle represents the anchor hole not excavated.
Embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
As shown in FIG. 1 to 3, the present invention provides a kind of severely-weathered ground anchor basis jump in Tibet and breaks into hole system, it is wrapped
Include anchor rod foundation cushion cap cushion cap 1, anchor hole identification point 2, odd number anchor hole, even number anchor hole, anchor pole 3 and grout blanket 4.Held in anchor rod foundation
The severely-weathered surface of stratum of the lower section of platform cushion cap 1 is arranged at intervals with some anchor hole identification points 2, in the odd positions of anchor hole identification point 2
Severely-weathered stratum at offer odd number anchor hole, offer even number at the severely-weathered stratum of the even number position of anchor hole identification point 2
Anchor hole.It is both provided with anchor pole 3 in odd number anchor hole and even number anchor hole, and between anchor pole 3 and odd number anchor hole and anchor pole 3 and even number
Grout blanket 4 is provided with gap between anchor hole.
In above-described embodiment, the aperture of odd number anchor hole and even number anchor hole is 120mm, hole depth 3500mm.
In the various embodiments described above, the pitch of holes between adjacent odd number anchor hole and even number anchor hole is more than or equal to 400mm；It is adjacent
Pitch of holes between two odd number anchor holes or two neighboring even number anchor hole is more than or equal to 800mm.
As shown in Fig. 1~Fig. 5, jumped the present invention also provides a kind of severely-weathered ground anchor basis in Tibet and beat forming hole method, its
Comprise the following steps：
1) some anchor holes are identified using ashes in severely-weathered surface of stratum as needed under anchor rod foundation cushion cap to identify
Point, and 1,2,3 is numbered to all anchor hole identification points ..., N；N is natural number；
2) construct to the anchor hole identification point 1,3,5,7 ... that numbering is odd number, drill into odd number anchor hole；
3) respectively to odd number anchor hole 1,3,5,7 ... carry out anchor pole grouting construction, when be in the milk 24 it is small when after, complete odd number anchor hole
Construction (as shown in Figure 4)；
4) dual numbers anchor hole 2,4,6,8 ... constructs, drills into even number anchor hole respectively, then respectively dual numbers anchor hole into
Row anchor pole grouting construction (as shown in Figure 5), completes severely-weathered ground anchor basis pore-forming.
In above steps, forming hole method is beaten in the jump when present invention simply lists one anchor hole in interval, for stratum wind
Change serious situation can also use the method for 2~3 anchor holes in interval carry out jump and break into hole.
Embodiment：
As shown in Figure 1,20 anchor hole marks are arranged using ashes altogether in severely-weathered surface of stratum under anchor rod foundation cushion cap
Point, anchor hole identification point numbering be 1,2,3 ... 20, aperture 120mm, pitch of holes 400mm, hole depth 3500mm.Anchor pole institute
Place stratum is severely-weathered stratum, and design parameter is as shown in table 1.
1 ground mechanics index of physics table of table
Then according to anchor hole 1,3,5,7 ..., 19 construct, after anchor hole drills successfully, respectively to anchor hole 1, and 3,5,
7 ... 19 carry out anchor pole grouting constructions, when be in the milk 24 it is small when after, then respectively to 2,4,6,8 ..., 20 carry out anchor hole drilling constructions.
Then carry out anchor pole grouting construction.
In conclusion the present invention in use, first to anchor hole 1,3,5,7 ... 19 into between-line spacing jump drilling when, soil
The soil pressure of body can be extruded to both sides, but since middle anchor hole 2,4,6,8 ... 20 is not constructed, such 1,3,5,
Spacing between 7 ... 19 is 800mm, and soil pressure will not cause the anchor hole collapse hole of pore-forming.Pneumatic pick in boring procedure at the same time
Vibrations will not cause the anchor pole collapse hole of pore-forming.If the 20 continuous construction one by one according to anchor hole 1,2,3 ..., can be because of soil pressure
Extruding and the vibrations of pneumatic pick, cause the anchor hole collapse hole of pore-forming.Anchor hole 1,3,5,7 ... 19, it is right immediately after anchor hole drilled as holes
Anchor hole 1,3,5,7 ... 19 carries out anchor pole grouting construction, when concreting 24 is small after, concrete has reached certain strong
Degree.The 20 anchor hole drilling constructions that carry out anchor hole 2,4,6,8 again ..., adjacent anchor hole has been completed anchor pole grouting and has been poured at this time, and coagulation
Soil has reached some strength, collapse hole situation would not occurs.
The various embodiments described above are merely to illustrate the present invention, the structure and size of each component, position is set and shape be all can be with
It is varied from, on the basis of technical solution of the present invention, improvement and wait that all principles according to the present invention carry out individual part
With conversion, should not exclude outside protection scope of the present invention.
Claims (9)
1. a kind of severely-weathered ground anchor basis in Tibet, which is jumped, beats forming hole method, it is characterised in that comprises the following steps：
1) some anchor hole identification points are identified using ashes in severely-weathered surface of stratum as needed under anchor rod foundation cushion cap, and
All anchor hole identification points are numbered；
2) construct to the anchor hole identification point that numbering is odd number, drill into odd number anchor hole；
3) respectively to odd number anchor hole carry out anchor pole grouting construction, when be in the milk 24 it is small when after, complete odd number anchor hole construction；
4) dual numbers anchor hole is constructed respectively, drills into even number anchor hole, and then the grouting of dual numbers anchor hole progress anchor pole is applied respectively
Work, completes severely-weathered ground anchor basis pore-forming.
2. the severely-weathered ground anchor basis in a kind of Tibet as claimed in claim 1, which is jumped, beats forming hole method, it is characterised in that：It is described
The aperture of odd number anchor hole and even number anchor hole is 120mm.
3. the severely-weathered ground anchor basis in a kind of Tibet as claimed in claim 1, which is jumped, beats forming hole method, it is characterised in that：It is described
The hole depth of odd number anchor hole and even number anchor hole is 3500mm.
4. the severely-weathered ground anchor basis in a kind of Tibet as claimed in claim 1, which is jumped, beats forming hole method, it is characterised in that：It is adjacent
The odd number anchor hole and even number anchor hole between pitch of holes be more than or equal to 400mm；The two neighboring odd number anchor hole or adjacent
Pitch of holes between two even number anchor holes is more than or equal to 800mm.
5. jumped such as a kind of severely-weathered ground anchor basis in Tibet of Claims 1-4 any one of them and beat forming hole method, its feature
It is：Jump is carried out using the method for 2~3 anchor holes in interval and breaks into hole.
6. a kind of severely-weathered ground anchor basis in Tibet, which is jumped, breaks into hole system, it is characterised in that：The system is held including anchor rod foundation
Platform cushion cap, anchor hole identification point, odd number anchor hole, even number anchor hole, anchor pole and grout blanket；Below the anchor rod foundation cushion cap cushion cap
Severely-weathered surface of stratum is arranged at intervals with some anchor hole identification points, the anchor hole identification point odd positions it is severely-weathered
The odd number anchor hole is offered at stratum, the idol is offered at the severely-weathered stratum of the even number position of the anchor hole identification point
Number anchor hole；Be both provided with the anchor pole in the odd number anchor hole and even number anchor hole, and the anchor pole and the odd number anchor hole it
Between and the gap between the anchor pole and the even number anchor hole in be provided with the grout blanket.
7. the severely-weathered ground anchor basis in a kind of Tibet as claimed in claim 6, which is jumped, breaks into hole system, it is characterised in that：It is described
The aperture of odd number anchor hole and even number anchor hole is 120mm.
8. the severely-weathered ground anchor basis in a kind of Tibet as claimed in claim 6, which is jumped, breaks into hole system, it is characterised in that：It is described
The hole depth of odd number anchor hole and even number anchor hole is 3500mm.
9. the severely-weathered ground anchor basis in a kind of Tibet as claimed in claim 6, which is jumped, breaks into hole system, it is characterised in that：It is adjacent
The odd number anchor hole and even number anchor hole between pitch of holes be more than or equal to 400mm；The two neighboring odd number anchor hole or adjacent
Pitch of holes between two even number anchor holes is more than or equal to 800mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810025454.2A CN108035346A (en) | 2018-01-11 | 2018-01-11 | A kind of severely-weathered ground anchor basis in Tibet, which is jumped, breaks into hole system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810025454.2A CN108035346A (en) | 2018-01-11 | 2018-01-11 | A kind of severely-weathered ground anchor basis in Tibet, which is jumped, breaks into hole system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108035346A true CN108035346A (en) | 2018-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810025454.2A Pending CN108035346A (en) | 2018-01-11 | 2018-01-11 | A kind of severely-weathered ground anchor basis in Tibet, which is jumped, breaks into hole system and method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322073A (en) * | 2011-08-12 | 2012-01-18 | 孟庆波 | Multi-section foundation of wind driven generator weathered rock |
| CN204311435U (en) * | 2014-07-16 | 2015-05-06 | 重庆巨能建设集团路桥工程有限公司 | One is revolved and is dug occlusion steel concrete impervious wall |
| CN104695963A (en) * | 2015-02-11 | 2015-06-10 | 山东科技大学 | Construction method for subway tunnel penetrating through building in fractured rock stratum |
| CN104695419A (en) * | 2015-03-24 | 2015-06-10 | 中冶建工集团有限公司 | Soft soil roadbed construction method |
| CN207959205U (en) * | 2018-01-11 | 2018-10-12 | 国家电网公司 | A kind of severely-weathered ground anchor basis, which is jumped, breaks into hole system |
-
2018
- 2018-01-11 CN CN201810025454.2A patent/CN108035346A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322073A (en) * | 2011-08-12 | 2012-01-18 | 孟庆波 | Multi-section foundation of wind driven generator weathered rock |
| CN204311435U (en) * | 2014-07-16 | 2015-05-06 | 重庆巨能建设集团路桥工程有限公司 | One is revolved and is dug occlusion steel concrete impervious wall |
| CN104695963A (en) * | 2015-02-11 | 2015-06-10 | 山东科技大学 | Construction method for subway tunnel penetrating through building in fractured rock stratum |
| CN104695419A (en) * | 2015-03-24 | 2015-06-10 | 中冶建工集团有限公司 | Soft soil roadbed construction method |
| CN207959205U (en) * | 2018-01-11 | 2018-10-12 | 国家电网公司 | A kind of severely-weathered ground anchor basis, which is jumped, breaks into hole system |
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| PB01 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20191009 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation Applicant after: Guo Wang Tibet Electric Power Company Limited Applicant after: Hebei Province Power Surveying Design & Research Institute Applicant after: Guo Wang goods and materials company limited Applicant after: North China Electric Power University Applicant after: Beijing Hualian Power Engineering Supervision Co., Ltd. Applicant after: China Electric Power Research Institute Co., Ltd. Applicant after: Electric Power Research Institute of State Grid Liaoning Electric Power Co., Ltd. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation Applicant before: Guo Wang Tibet Electric Power Company Limited Applicant before: Hebei Province Power Surveying Design & Research Institute Applicant before: Guo Wang goods and materials company limited Applicant before: North China Electric Power University Applicant before: Beijing Hualian Power Engineering Supervision Co., Ltd. |
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