CN108570889A - A kind of the Resistant heave structure and construction method of intumescent flexibel rock non-fragment orbit cutting bedding - Google Patents
A kind of the Resistant heave structure and construction method of intumescent flexibel rock non-fragment orbit cutting bedding Download PDFInfo
- Publication number
- CN108570889A CN108570889A CN201810424707.3A CN201810424707A CN108570889A CN 108570889 A CN108570889 A CN 108570889A CN 201810424707 A CN201810424707 A CN 201810424707A CN 108570889 A CN108570889 A CN 108570889A
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- CN
- China
- Prior art keywords
- flexibel
- intumescent
- energy dissipating
- batholith
- dissipating hole
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
- E01B2/006—Deep foundation of tracks
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/08—Deep or vertical foundation
Abstract
A kind of the Resistant heave structure and construction method of intumescent flexibel rock non-fragment orbit cutting bedding, the protuberance deformation of cutting bedding to be eliminated during design and construction, it avoids swelling the generation deformed during high-speed railway operation, meet the requirement of high-speed railway Deformation control, and effectively reduces high-speed railway operation maintenance expense.Including fill in the rock mass at the cutting bottom layer of subgrade on intumescent flexibel batholith bottom, intumescent flexibel batholith bottom described in cutting bedding table laterally, longitudinally spaced setting depth energy dissipating hole, shallow energy dissipating hole, filling setting damping body in each depth energy dissipating hole, shallow energy dissipating hole, the sealing plug of port indentation thereon form sealing.Setting anchors into the deformation monitoring element in intumescent flexibel batholith bed rock body between the depth energy dissipating hole, shallow energy dissipating hole.
Description
Technical field
The present invention relates to high-speed railway subgrade, more particularly to a kind of Resistant heave of intumescent flexibel rock non-fragment orbit cutting bedding
Structure and construction method.
Technical background
With the fast development of high-speed railway, non-fragment orbit has been widely used.However, since non-fragment orbit arch is adjustable
Measure it is small, under line protuberance deformation drastically influences much built normal operation of the high speed without tiny fragments of stone, coal, etc. railway, in some instances it may even be possible to cause weight
Big safety accident.Intumescent flexibel rock cutting protuberance is exactly that wherein one of typical case, reason is mainly to be deposited after intumescent flexibel rock excavates
It being discharged in long-term stress, forms virtual reversed soil pressure, this reversed soil pressure easily causes cutting bedding to swell, and
Expansive rock cutting location, oozing under surface water can cause cutting bedding to swell.Currently, patent No. CN103821038A discloses one kind
High-speed railway subgrade arch repairing and reinforcement structure is arched up with effectively eliminating the roadbed caused by swelled rock and soil expands, ensures top
The ride comfort of track structure；Patent No. CN106968140A discloses a kind of arch of non-fragment orbit railway tunnel and repairs structure and apply
Work method, to solve the problems, such as tunnel arch Deformation Repair and keep effect with long-term.But above-mentioned patent is mainly for arch
Damage repair is renovated, and still influences high-speed railway operation in repair process, or even can cause the disconnected road of high-speed railway, and social influence is disliked
It is bad.
Therefore, for solve the problems, such as it is above-mentioned face, need intumescent flexibel rock cutting design and construct in time find protuberance
Problem, and propose a kind of innovation structure and construction method for eliminating protuberance deformation, achieve the purpose that long-term Resistant heave, and have
There is safe and reliable, easy for construction, investment reduction, meet the requirements such as environmental protection.
Invention content
Technical problem to be solved by the invention is to provide a kind of Resistant heaves of intumescent flexibel rock non-fragment orbit cutting bedding
Structure eliminates the protuberance deformation of cutting bedding during design and construction, avoids protuberance deformation during high-speed railway operation
Generation, meet high-speed railway Deformation control requirement, and effectively reduce high-speed railway operation maintenance expense.
The technical solution that the present invention solves used by above-mentioned technical problem is as follows：
A kind of Resistant heave structure of intumescent flexibel rock non-fragment orbit cutting bedding of the present invention, including fill in intumescent flexibel
Cutting bottom layer of subgrade, cutting surface layer of subgrade bed on batholith bottom, it is characterized in that：Lateral in the rock mass at intumescent flexibel batholith bottom,
Longitudinally spaced setting deep energy dissipating hole, shallow energy dissipating hole, filling setting damping body in each depth energy dissipating hole, shallow energy dissipating hole, thereon port pressure
Enter sealing plug and forms sealing；Setting anchors into the deformation in intumescent flexibel batholith bed rock body between the depth energy dissipating hole, shallow energy dissipating hole
Monitoring element.
Another technical problem to be solved by this invention is to provide a kind of above-mentioned intumescent flexibel rock non-fragment orbit cutting bedding
Resistant heave structure construction method, this method comprises the following steps：
1. excavating intumescent flexibel rock cutting, interior lateral, longitudinally spaced anchor into deforms prison in intumescent flexibel batholith bed rock body
Element is surveyed, intumescent flexibel rock substrate deformation is monitored；
2. according to the deformation data that deformation monitoring element acquires, judge whether intumescent flexibel batholith bottom swells, if not swelling
Cutting bottom layer of subgrade, cutting surface layer of subgrade bed are then filled successively on intumescent flexibel batholith bottom, if intumescent flexibel rock basement high
Continue following steps；
Deep energy dissipating hole, shallow energy dissipating hole are formed 3. drilling in intumescent flexibel batholith bed rock body using drilling machine, inwardly filling disappears
Energy body, the sealing plug of port indentation thereon form sealing；
4. anchoring into deformation monitoring element into intumescent flexibel batholith bed rock body between deep energy dissipating hole, shallow energy dissipating hole, monitor
Energy dissipating treated intumescent flexibel rock substrate deformation；
5. according to the deformation data that deformation monitoring element acquires, judge whether intumescent flexibel batholith bottom swells, if protuberance is pressed
3. 4. encryption setting deep energy dissipating hole, shallow energy dissipating hole carry out energy dissipating processing to step in intumescent flexibel batholith bed rock body with step, if
Intumescent flexibel batholith bottom end protuberance then continues following steps；
6. filling cutting bottom layer of subgrade, cutting surface layer of subgrade bed successively on intumescent flexibel batholith bottom.
The invention has the advantages that existing long-term stress after intumescent flexibel rock excavates can be released effectively, eliminate virtual
Reversed soil pressure causes the protuberance deformation of cutting bedding, and the protuberance deformation of cutting bedding is eliminated during design and construction, reaches base
The purpose of the long-term Resistant heave of bed；Meet the requirement of high-speed railway Deformation control, avoids swelling deformation during high-speed railway operation
Occur；Structure novel, securely and reliably, construction is simple saves construction cost.
Description of the drawings
This specification includes following five width attached drawing：
Fig. 1 is a kind of cross-section diagram of the Resistant heave structure of intumescent flexibel rock non-fragment orbit cutting bedding of the present invention；
Fig. 2 is the enlarged diagram of the parts C in Fig. 1；
Fig. 3 is the sectional view of A-A and line B-B along Fig. 1；
Fig. 4 is a kind of knot of damping body in a kind of Resistant heave structure of intumescent flexibel rock non-fragment orbit cutting bedding of the present invention
Structure schematic diagram；
Fig. 5 is the another kind of damping body in a kind of Resistant heave structure of intumescent flexibel rock non-fragment orbit cutting bedding of the present invention
Structural schematic diagram.
Cutting bottom layer of subgrade 11, cutting surface layer of subgrade bed 12, deformation monitoring element 13, deep energy dissipating hole 21, shallow energy dissipating hole 22, envelope
Mouth plug 23, damping body 30, intumescent flexibel batholith bottom D.
Specific implementation mode
It is further illustrated the present invention below by specific embodiment and in conjunction with attached drawing.
Referring to Fig.1, a kind of Resistant heave structure of intumescent flexibel rock non-fragment orbit cutting bedding of the invention include fill in
Cutting bottom layer of subgrade 11, cutting surface layer of subgrade bed 12 on intumescent flexibel batholith bottom D.Referring to Figures 1 and 2, Fig. 3, the expansion are soft
Lateral in the rock mass of matter batholith bottom D, longitudinally spaced setting deep energy dissipating hole 21, shallow energy dissipating hole 22, each depth energy dissipating hole 21, shallow energy dissipating hole
Filling setting damping body 30 in 22, the sealing plug 23 of port indentation thereon form sealing.The depth energy dissipating hole 21, shallow energy dissipating hole 22 it
Between setting anchor into deformation monitoring element 13 in the D rock mass of intumescent flexibel batholith bottom.The energy dissipating of deep energy dissipating hole 21 and filling in the inner
Body 30 from lateral angles absorbs the intumescent flexibel batholith bottom deeps D and shallow-layer, and virtually reversed soil pressure causes protuberance energy, shallow energy dissipating
The damping body 30 of hole 22 and filling in the inner absorbs intumescent flexibel rock cutting substrate shallow-layer virtually reversed soil pressure from lateral angles
Cause the lateral compression energy of protuberance energy and cut slope.It existing is answered for a long time to be released effectively after intumescent flexibel rock excavates
Power eliminates virtual reversed soil pressure and causes the protuberance deformation of cutting bedding, by the protuberance deformation of cutting bedding during design and construction
It eliminates, achievees the purpose that the long-term Resistant heave of bedding, meet the requirement of high-speed railway Deformation control, during avoiding high-speed railway from runing
Swell the generation of deformation.
With reference to Fig. 3, the depth energy dissipating hole 21, the rectangular or blossom type on intumescent flexibel batholith bottom D of shallow energy dissipating hole 22
It lays, depth of placement, spacing should be determined according to intumescent flexibel batholith bottom D protuberance deformations.In general, the depth energy dissipating hole
21, the section in shallow energy dissipating hole 22 is circle, and diameter is not more than 150mm.The section in the depth energy dissipating hole 21, shallow energy dissipating hole 22
Ellipse may be used, minor axis length is not more than 150mm.
The damping body 30 is made of elastic material, absorbs and discharges lateral crowded inside the D rock mass of intumescent flexibel batholith bottom
Pressure energy.With reference to Fig. 4, the damping body 30 is hollow ring body, vertical layered to be packed to deep energy dissipating hole 21, in shallow energy dissipating hole 22.
With reference to Fig. 5, the damping body 30 can also be used hollow ball, and the hollow ball mixing of multiple diameter is packed to deep energy dissipating hole 21, shallow disappears
In energy hole 22.
With reference to Fig. 2, the sealing plug 23 should meet the intensity requirement of roadbed bottom, be pressed into deep energy dissipating hole 21, shallow disappear
Depth in energy hole 22 is not less than 0.5m, forms sealing to deep energy dissipating hole 21, shallow 22 upper port of energy dissipating hole, barrier moisture infiltration is deep
In energy dissipating hole 21, shallow energy dissipating hole 22.
Referring to Fig.1, the construction method of the Resistant heave structure of a kind of intumescent flexibel rock non-fragment orbit cutting bedding of the invention,
Include the following steps：
1. excavating intumescent flexibel rock cutting, interior lateral, longitudinally spaced anchor into deforms prison in the D rock mass of intumescent flexibel batholith bottom
Survey element 13, the bottom D deformations of monitoring intumescent flexibel batholith；
2. according to the deformation data that deformation monitoring element 13 acquires, judge whether intumescent flexibel batholith bottom D swells, if not grand
It rises and then fills cutting bottom layer of subgrade 11, cutting surface layer of subgrade bed 12 successively on intumescent flexibel batholith bottom D, if intumescent flexibel batholith bottom
D protuberances then continue following steps；
Deep energy dissipating hole 21, shallow energy dissipating hole 22 are formed 3. drilling in the D rock mass of intumescent flexibel batholith bottom using drilling machine, is inwardly filled out
Damping body 30 is filled in, the sealing plug 23 of port indentation thereon forms sealing；
4. anchoring into deformation monitoring element into intumescent flexibel batholith bottom D rock mass between deep energy dissipating hole 21, shallow energy dissipating hole 22
13, the bottom D deformations of monitoring energy dissipating treated intumescent flexibel batholith；
5. according to the deformation data that deformation monitoring element 13 acquires, judge whether intumescent flexibel batholith bottom D swells, if protuberance
By step, 3. 4. encryption setting deep energy dissipating hole 21, shallow energy dissipating hole 22 carry out energy dissipating in the D rock mass of intumescent flexibel batholith bottom with step
Processing continues following steps if the intumescent flexibel batholith bottom ends D are swelled；
6. filling cutting bottom layer of subgrade 11, cutting surface layer of subgrade bed 12 successively on intumescent flexibel batholith bottom D.
The step 1. with step 4. in, the monitoring cycle of intumescent flexibel batholith bottom D deformation is no less than 6 months.
The above is only using a kind of Resistant heave of intumescent flexibel rock non-fragment orbit cutting bedding of the diagram illustrating present invention
Some of structure and construction method principles are not intended to for the present invention to be confined to shown and described concrete structure and the scope of application
It is interior, therefore every corresponding modification for being possible to be utilized and equivalent, belong to the apllied the scope of the claims of the present invention.
Claims (10)
1. a kind of Resistant heave structure of intumescent flexibel rock non-fragment orbit cutting bedding, including fill in intumescent flexibel batholith bottom (D)
On cutting bottom layer of subgrade (11), cutting surface layer of subgrade bed (12), it is characterized in that：In the rock mass at intumescent flexibel batholith bottom (D)
Laterally, the deep energy dissipating hole (21) of longitudinally spaced setting, shallow energy dissipating hole (22), each depth energy dissipating hole (21), the interior filling in shallow energy dissipating hole (22)
Damping body (30) is set, and port indentation sealing plug (23) forms sealing thereon；It is described depth energy dissipating hole (21), shallow energy dissipating hole (22) it
Between setting anchor into deformation monitoring element (13) in intumescent flexibel batholith bottom (D) rock mass.
2. a kind of Resistant heave structure of intumescent flexibel rock non-fragment orbit cutting bedding as described in claim 1, it is characterized in that：Institute
State that deep energy dissipating hole (21), shallow energy dissipating hole (22) are rectangular on intumescent flexibel batholith bottom (D) or blossom type is laid.
3. a kind of Resistant heave structure of intumescent flexibel rock non-fragment orbit cutting bedding as claimed in claim 2, it is characterized in that：Institute
State deep energy dissipating hole (21), shallow energy dissipating hole (22) section be circle, diameter be not more than 150mm.
4. a kind of Resistant heave structure of intumescent flexibel rock non-fragment orbit cutting bedding as claimed in claim 2, it is characterized in that：Institute
State deep energy dissipating hole (21), shallow energy dissipating hole (22) section be ellipse, minor axis length be not more than 150mm.
5. a kind of Resistant heave structure of intumescent flexibel rock non-fragment orbit cutting bedding as described in claim 1, it is characterized in that：Institute
It states damping body (30) to be made of elastic material, absorb and discharges the lateral compression energy inside intumescent flexibel batholith bottom (D) rock mass.
6. a kind of Resistant heave structure of intumescent flexibel rock non-fragment orbit cutting bedding as claimed in claim 5, it is characterized in that：Institute
It is hollow ring body to state damping body (30).
7. a kind of Resistant heave structure of intumescent flexibel rock non-fragment orbit cutting bedding as claimed in claim 5, it is characterized in that：Institute
State the hollow ball that damping body (30) is multiple diameter.
8. a kind of Resistant heave structure of intumescent flexibel rock non-fragment orbit cutting bedding as described in claim 1, it is characterized in that：Institute
State the deep energy dissipating hole (21) of sealing plug (23) indentation, the depth in shallow energy dissipating hole (22) is not less than 0.5m.
9. a kind of Resistant heave structure of intumescent flexibel rock non-fragment orbit cutting bedding as described in claim 1 to 5 any one
Construction method includes the following steps：
1. intumescent flexibel rock cutting is excavated, it is interior in intumescent flexibel batholith bottom (D) rock mass lateral, longitudinally spaced to anchor into deformation monitoring
Element (13), monitoring intumescent flexibel batholith bottom (D) deformation；
2. according to the deformation data that deformation monitoring element (13) acquires, judge whether intumescent flexibel batholith bottom (D) swells, if not grand
It rises and then fills cutting bottom layer of subgrade (11), cutting surface layer of subgrade bed (12) successively on intumescent flexibel batholith bottom (D), if intumescent flexibel
Batholith bottom (D) protuberance then continues following steps；
Deep energy dissipating hole (21), shallow energy dissipating hole (22) are formed 3. drilling in intumescent flexibel batholith bottom (D) rock mass using drilling machine, inwardly
Damping body (30) is clogged, port indentation sealing plug (23) forms sealing thereon；
4. deformation monitoring member is anchored into intumescent flexibel batholith bottom (D) rock mass between deep energy dissipating hole (21), shallow energy dissipating hole (22)
Part (13), the deformation of monitoring energy dissipating treated intumescent flexibel batholith bottom (D)；
5. according to the deformation data that deformation monitoring element (13) acquires, judge whether intumescent flexibel batholith bottom (D) swells, if protuberance
By step 3. with step 4. in intumescent flexibel batholith bottom (D) rock mass the deep energy dissipating hole (21) of encryption setting, shallow energy dissipating hole (22) into
Row energy dissipating is handled, and continues following steps if the protuberance of intumescent flexibel batholith bottom (D) end；
6. filling cutting bottom layer of subgrade (11), cutting surface layer of subgrade bed (12) successively on intumescent flexibel batholith bottom (D).
10. a kind of construction method of the Resistant heave structure of intumescent flexibel rock non-fragment orbit cutting bedding as claimed in claim 9,
It is characterized in：The step 1. with step 4. in, intumescent flexibel batholith bottom (D) deformation monitoring cycle be no less than 6 months.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810424707.3A CN108570889A (en) | 2018-05-07 | 2018-05-07 | A kind of the Resistant heave structure and construction method of intumescent flexibel rock non-fragment orbit cutting bedding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810424707.3A CN108570889A (en) | 2018-05-07 | 2018-05-07 | A kind of the Resistant heave structure and construction method of intumescent flexibel rock non-fragment orbit cutting bedding |
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| CN108570889A true CN108570889A (en) | 2018-09-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965398A (en) * | 2019-11-25 | 2020-04-07 | 中南大学 | Expansive soil foundation structure containing ballastless track roadbed and construction method |
| CN111379199A (en) * | 2020-03-30 | 2020-07-07 | 中铁二院工程集团有限责任公司 | Construction device, construction system and construction method for void pile plate structure |
| CN114032720A (en) * | 2021-11-08 | 2022-02-11 | 湖南大学 | Arc-shaped device for eliminating railway roadbed bulging deformation and installation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965398A (en) * | 2019-11-25 | 2020-04-07 | 中南大学 | Expansive soil foundation structure containing ballastless track roadbed and construction method |
| CN111379199A (en) * | 2020-03-30 | 2020-07-07 | 中铁二院工程集团有限责任公司 | Construction device, construction system and construction method for void pile plate structure |
| CN111379199B (en) * | 2020-03-30 | 2021-08-03 | 中铁二院工程集团有限责任公司 | Construction device, construction system and construction method for void pile plate structure |
| CN114032720A (en) * | 2021-11-08 | 2022-02-11 | 湖南大学 | Arc-shaped device for eliminating railway roadbed bulging deformation and installation method thereof |
| CN114032720B (en) * | 2021-11-08 | 2022-07-19 | 湖南大学 | Arc-shaped device for eliminating railway roadbed bulging deformation and installation method thereof |
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