CN110055831A - A kind of abrupt slope high-speed railway concrete rigid short circuit based structures and construction method - Google Patents
A kind of abrupt slope high-speed railway concrete rigid short circuit based structures and construction method Download PDFInfo
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- CN110055831A CN110055831A CN201910348120.3A CN201910348120A CN110055831A CN 110055831 A CN110055831 A CN 110055831A CN 201910348120 A CN201910348120 A CN 201910348120A CN 110055831 A CN110055831 A CN 110055831A
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- concrete foundations
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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
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/008—Drainage of track
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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
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Abstract
A kind of abrupt slope high-speed railway concrete rigid short circuit based structures and construction method facilitate construction to provide sufficiently stable property for the way of concrete foundations of steep slope topography, and short-circuit base with stand after correlation engineering can effectively be connected.Including way of concrete foundations, abrupt slope slope surface under the way of concrete foundations is to excavate the step surface formed, the interval setting grouted anchor bar in the ground under step surface, the top of each grouted anchor bar extends outward step surface and forms overhanging section, way of concrete foundations placement layer by layer is on the step surface, in overhanging section of insertion way of concrete foundations of each grouted anchor bar.Longitudinally spaced setting transverse drain, transverse direction cross rail pipe in the way of concrete foundations, and transverse drain is tilted by side slope outside the lateral way of concrete foundations of backer.Cable slot structure is arranged in both lateral sides at the top of the way of concrete foundations, and the pre-buried contact net column of longitudinal gap connects bolt.
Description
Technical field
The present invention relates to subgrade engineering, in particular to a kind of abrupt slope high-speed railway concrete rigid short circuit based structures and construction
Method.
Background technique
In mountain area, especially Southwestern China mountain area, landform are risen one after another, and steep slope topography is very common, repairs under these conditions
Building high-speed railway will appear the short subgrade engineering in abrupt slope between a large amount of bridge tunnel, high to guarantee when short-circuit base length is less than 40m
The high speed of fast railway, smooth and safety requirements, these short-circuit bases usually require to be arranged to rigid road base, how to realize steep slope topography
Correlation engineering behind the rapid construction of rigidity short circuit base, the stability of steep slope topography roadbed, the draining of short-circuit base, short-circuit base and station
Effectively linking is must to solve the problems, such as, therefore propose a kind of abrupt slope high-speed railway concrete rigid short circuit based structures and construction method
It is of great significance, and should have the characteristics that easy for construction, economical, environmentally friendly and be conducive to promote.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of abrupt slope high-speed railway concrete rigid short circuit based structures, with
Sufficiently stable property is provided for the way of concrete foundations of steep slope topography, facilitates construction, and short-circuit base can effectively be held in the mouth with correlation engineering behind station
It connects.
It is as follows that the present invention solves the technical solution that above-mentioned technical problem is taken:
A kind of abrupt slope high-speed railway concrete rigid short circuit based structures of the invention, including way of concrete foundations, it is characterized in that:
Abrupt slope slope surface under the way of concrete foundations is to excavate the step surface formed, the interval setting slip casting anchor in the ground under step surface
Bar, the top of each grouted anchor bar extend outward step surface and form overhanging section, way of concrete foundations placement layer by layer on the step surface,
In overhanging section of insertion way of concrete foundations of each grouted anchor bar；Longitudinally spaced setting transverse drain in the way of concrete foundations,
Rail pipe is laterally crossed, transverse drain is tilted by side slope outside the lateral way of concrete foundations of backer；At the top of the way of concrete foundations laterally
Cable slot structure is arranged in two sides, and the pre-buried contact net column of longitudinal gap connects bolt.
The grouted anchor bar includes vertical grouted anchor bar and lateral grouted anchor bar, and vertical grouted anchor bar is arranged at intervals on step
On the downside of face, lateral grouted anchor bar is arranged at intervals on the upside of step surface；Overhanging section of the length is 50-100cm.
The top surface of each step rolls oblique to backer in the step surface.
Another technical problem to be solved by this invention is to provide a kind of abrupt slope high-speed railway concrete rigid short circuit base junction
The construction method of structure, this method comprises the following steps:
1. digging step in the slope surface of abrupt slope forms substrate of the step surface as way of concrete foundations；
2. each grouted anchor bar outer end exposure step surface forms overhanging section in step surface construction grouted anchor bar；
3. formwork erection concreting in lifts roadbed concrete is to transverse drain lower side elevation, at it before concrete initial set
Two side slope of way of concrete foundations is stretched out at slant setting transverse drain and fixation on top surface, transverse drain both ends；
4. concreting in lifts roadbed concrete is placed before concrete initial set on its top face to rail pipe elevation is laterally crossed
Rail pipe is laterally crossed, rail pipe both ends is laterally crossed and stretches out two side slope of way of concrete foundations；
5. casting concrete roadbed concrete continues to pour to cable trough structural base elevation after cable channel formwork is arranged
Way of concrete foundations way of concrete foundations elevation of top surface buries contact net column before concrete initial set at the top of way of concrete foundations and connects spiral shell
Bolt.
The invention has the advantages that can as the base foundation of way of concrete foundations at step surface abrupt slope slope surface excavation
To facilitate way of concrete foundations construction and increase its stability；Interval setting grouted anchor bar, slip casting anchor in the ground under step surface
Overhanging section of bar is connected with way of concrete foundations, and the horizontal resist forces and horizontal shear of way of concrete foundations are greatly reinforced by the effect of slopes
Power, so that the way of concrete foundations for steep slope topography provides sufficiently stable property；Inclined transverse direction is arranged in interval in way of concrete foundations
The surface pond by versant can be effectively discharged in drainpipe, and pre-buried setting is laterally crossed rail pipe and worn for railway cable in way of concrete foundations
It crosses track and channel is provided；The advance reservation cable slot structure at the top of way of concrete foundations can directly place cable, solve concrete
Cable trough repeats setting and constructional difficulties problem after construction；Construction method is simple, effectively prevents concrete structure construction process
Unreasonable the problem of causing serial post facility constructional difficulties, and have the characteristics that economic, environmental protection and be conducive to promote.
Detailed description of the invention
This specification includes following two width attached drawing:
Fig. 1 is a kind of sectional schematic diagram of abrupt slope high-speed railway concrete rigid short circuit based structures of the present invention；
Fig. 2 is the enlarged diagram of the part A in Fig. 1；
Component name and corresponding label are shown in figure: way of concrete foundations 10, laterally crosses rail pipe at transverse drain 11
12, cable slot structure 13, drain hole 14, contact net column connection bolt 15, middle wall 16, cover board 17, connection drainpipe 18, step
Face 20, vertical grouted anchor bar 21, lateral grouted anchor bar 22.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples:
Referring to Fig.1, a kind of abrupt slope high-speed railway concrete rigid short circuit based structures of the invention, including way of concrete foundations
10, the abrupt slope slope surface under the way of concrete foundations 10 is to excavate the step surface 20 formed, is spaced in the ground under step surface 20
Grouted anchor bar is set, and the top of each grouted anchor bar extends outward step surface 20 and forms overhanging section, and the layering of way of concrete foundations 10 is poured
It builds on the step surface 20, in overhanging section of insertion way of concrete foundations 10 of each grouted anchor bar, is greatly reinforced by the effect of slopes
The horizontal resist forces and horizontal shear power of way of concrete foundations 10, so that the way of concrete foundations for steep slope topography provides sufficiently stable property.
Longitudinally spaced setting transverse drain 11, transverse direction cross rail pipe 12 in the way of concrete foundations 10, and transverse drain 11 is by backer
The lateral outer side slope of way of concrete foundations 10 inclination, can effectively be discharged the surface pond by versant, and laterally crossing rail pipe 12 is railway electricity
Cable passes through track and provides channel.Cable slot structure 13 is arranged in the 10 top both lateral sides of way of concrete foundations, and longitudinal gap is pre-
Bury contact net column connection bolt 15, can directly place cable, effectively solve concrete construction after cable trough repeat setting and
Constructional difficulties problem.
Referring to Fig.1, the grouted anchor bar includes vertical grouted anchor bar 21 and lateral grouted anchor bar 22, vertical grouted anchor bar 21
It is arranged at intervals on 20 downside of step surface, lateral grouted anchor bar 22 is arranged at intervals on 20 upside of step surface, and overhanging section of length is general
For 50-100cm.The top surface of each step is rolled to backer tiltedly, to enhance the stability of way of concrete foundations in the step surface 20.Institute
It states 10 two sides ratio of slope of way of concrete foundations and is generally 1:0.3-1:0.5.11 caliber of transverse drain is generally 0.8-1.5m, indulges
It is generally 10-20m to spacing, outside draining ratio of slope is not less than 4%.
Referring to Fig. 2, the cable slot structure 13 includes inner side cable slot, the outer cable slot being separated to form by middle wall 16,
Cable trench bottom is longitudinally spaced on the outside is arranged the drain hole 14 for leading to ipsilateral 10 slope surface of way of concrete foundations, middle 16 bottom edge of wall
Longitudinal gap setting is connected to the connection drainpipe 18 of inner side cable slot, outer cable slot, is to inside at the top of cable slot structure 13
Cable trough, outer cable groove top end form the cover board 17 covered.
Referring to Fig.1, the construction method of a kind of abrupt slope high-speed railway concrete rigid short circuit based structures of the invention, including such as
Lower step:
1. digging step in the slope surface of abrupt slope forms substrate of the step surface 20 as way of concrete foundations 10；
2. in the construction grouted anchor bar of step surface 20, each grouted anchor bar outer end exposure step surface 20 forms overhanging section；
3. 10 concrete of formwork erection concreting in lifts roadbed is to 11 lower side elevation of transverse drain, before concrete initial set
Slant setting transverse drain 11 and fixed, 11 both ends of transverse drain stretching, 10 liang of side slopes of way of concrete foundations on its top face
Face；
4. 10 concrete of concreting in lifts roadbed is to 12 elevation of rail pipe is laterally crossed, before concrete initial set on its top face
It places and laterally crosses rail pipe 12, laterally cross 12 both ends of rail pipe and stretch out 10 liang of side slopes of way of concrete foundations；
5. 10 concrete of casting concrete roadbed after cable channel formwork is arranged, continues to 13 Bottom Altitude of cable slot structure
It is vertical to bury contact net before concrete initial set at the top of way of concrete foundations 10 for 10 way of concrete foundations elevation of top surface of casting concrete roadbed
Column connects bolt 15.
Referring to Fig. 2, the step 5. in, cable channel formwork includes two laterally spaced groove body templates, in two slots
The steel mesh of middle wall 16 is put among body template, 3-5cm in concrete is inserted into vertical reinforcement lower end.In two groove body templates
Between concrete surface on place connection drainpipe 18, the on the outside coagulation between groove body template and ipsilateral way of concrete foundations 10
The pvc pipe for forming drain hole 14 is placed on native surface.
The construction method is simple, effectively prevents that concrete structure construction process is unreasonable to cause serial post facility to construct
Difficult problem, and have the characteristics that economic, environmental protection and be conducive to promote.
The above, which only explains through diagrams, a kind of abrupt slope high-speed railway concrete rigid short circuit based structures of the present invention and to be applied
Some principles of work method are not intended to the present invention being confined to shown and the specific structure and the construction method scope of application
It is interior, therefore all corresponding modifications that may be utilized and equivalent, belong to the applied the scope of the patents of the present invention.
Claims (8)
1. a kind of abrupt slope high-speed railway concrete rigid short circuit based structures, including way of concrete foundations (10), it is characterized in that: described mixed
Abrupt slope slope surface under solidifying dirt road base (10) is to excavate the step surface (20) formed, interval setting in the ground under step surface (20)
Grouted anchor bar, the top of each grouted anchor bar extend outward step surface (20) and form overhanging section, and way of concrete foundations (10) layering is poured
It builds on the step surface (20), overhanging section of insertion way of concrete foundations (10) of each grouted anchor bar is interior；The way of concrete foundations (10)
Interior longitudinally spaced setting transverse drain (11) laterally crosses rail pipe (12), and transverse drain (11) is by the lateral concrete of backer
The outer side slope inclination of roadbed (10)；Both lateral sides setting cable slot structure (13) at the top of the way of concrete foundations (10), and it is longitudinal
It is spaced pre-buried contact net column connection bolt (15).
2. a kind of abrupt slope high-speed railway concrete rigid short circuit based structures as described in claim 1, it is characterized in that: the slip casting anchor
Bar includes vertical grouted anchor bar (21) and lateral grouted anchor bar (22), and vertical grouted anchor bar (21) is arranged at intervals on step surface (20)
Downside, lateral grouted anchor bar (22) are arranged at intervals on the upside of step surface (20)；Overhanging section of the length is 50-100cm.
3. a kind of abrupt slope high-speed railway concrete rigid short circuit based structures as described in claim 1, it is characterized in that: the step surface
(20) top surface of each step rolls oblique to backer in.
4. a kind of abrupt slope high-speed railway concrete rigid short circuit based structures as described in claim 1, it is characterized in that: the concrete
Roadbed (10) two sides ratio of slope is 1:0.3-1:0.5.
5. a kind of abrupt slope high-speed railway concrete rigid short circuit based structures as described in claim 1, it is characterized in that: the laterally row
Water pipe (11) caliber is 0.8-1.5m, and longitudinal pitch 10-20m, outside draining ratio of slope is not less than 4%.
6. a kind of abrupt slope high-speed railway concrete rigid short circuit based structures as described in claim 1, it is characterized in that: the cable trough
Structure (13) includes inner side cable slot, the outer cable slot being separated to form by middle wall (16), and cable trench bottom is along longitudinal direction on the outside
The drain hole (14) of ipsilateral way of concrete foundations (10) slope surface, the middle longitudinally spaced setting connection in wall (16) bottom are led in interval setting
The connection drainpipe (18) of inner side cable slot, outer cable slot, cable slot structure (13) top is to inside cable trough, outside electricity
Cable groove top end forms the cover board (17) covered.
7. a kind of construction method of abrupt slope high-speed railway concrete rigid short circuit based structures as described in claim 1 to 6, including such as
Lower step:
1. digging step in the slope surface of abrupt slope forms the substrate of step surface (20) as way of concrete foundations (10)；
2. in step surface (20) construction grouted anchor bar, each grouted anchor bar outer end exposure step surface (20) forms overhanging section；
3. formwork erection concreting in lifts roadbed (10) concrete is to transverse drain (11) lower side elevation, before concrete initial set
Slant setting transverse drain (11) is managed and is fixed on its top face, and way of concrete foundations (10) are stretched out at transverse drain (11) both ends
Two side slopes；
4. concreting in lifts roadbed (10) concrete is to rail pipe (12) elevation is laterally crossed, before concrete initial set on its top face
It places and laterally crosses rail pipe (12), laterally cross rail pipe (12) both ends and stretch out (10) two side slope of way of concrete foundations；
5. casting concrete roadbed (10) concrete after cable channel formwork is arranged, continues to cable slot structure (13) Bottom Altitude
Casting concrete roadbed (10) way of concrete foundations elevation of top surface, the embedded contact at the top of way of concrete foundations (10) before concrete initial set
Net column connects bolt (15).
8. a kind of construction method of abrupt slope high-speed railway concrete rigid short circuit based structures as claimed in claim 7, it is characterized in that:
The step 5. in, cable channel formwork includes two laterally spaced groove body templates, is put among two groove body templates
3-5cm in concrete is inserted into the steel mesh of wall (16), vertical reinforcement lower end；Concrete table between two groove body templates
Connection drainpipe (18) is placed on face, is put on the concrete surface between groove body template and ipsilateral way of concrete foundations (10) on the outside
Set the pvc pipe to form drain hole (14).
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| CN201910348120.3A CN110055831A (en) | 2019-04-28 | 2019-04-28 | A kind of abrupt slope high-speed railway concrete rigid short circuit based structures and construction method |
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| CN201910348120.3A CN110055831A (en) | 2019-04-28 | 2019-04-28 | A kind of abrupt slope high-speed railway concrete rigid short circuit based structures and construction method |
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