CN109811607A - Conducive to the light-duty high embankment structure in mountain area escarpment section and construction method taken precautions against natural calamities - Google Patents
Conducive to the light-duty high embankment structure in mountain area escarpment section and construction method taken precautions against natural calamities Download PDFInfo
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- CN109811607A CN109811607A CN201910141597.4A CN201910141597A CN109811607A CN 109811607 A CN109811607 A CN 109811607A CN 201910141597 A CN201910141597 A CN 201910141597A CN 109811607 A CN109811607 A CN 109811607A
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Abstract
The present invention is conducive to the light-duty high embankment structure in mountain area escarpment section taken precautions against natural calamities and construction method, belong to highway field, purpose is to improve the ability of preventing and reducing natural disasters of mountain area escarpment, high filling section, the ability quickly to resume traffic under the safety of structure and hazardous condition of promotion traffic of mountain area facility Important Sections.Including the reinforced concrete cushion cap for being embedded in the reinforced concrete pile foundation of supporting course, being supported in reinforced concrete pile foundation top and being connected with reinforced concrete pile foundation and fill the light soil roadbed above reinforced concrete cushion cap.The present invention, the conventional section that bridge can only be arranged is changed to road structure form, and existing impaired bridge is repaired using the structure, improve the stability of escarpment embankment, influence of the roadbed filling to river of bordering on the river is avoided, escarpment is solved the problems, such as, borders on the river, high filling section roadbed filling；Land occupation scale is reduced simultaneously；The light-duty high embankment structure substantially increases the traffic support ability in the section, reduces overall life cycle cost.
Description
Technical field
The invention belongs to highway fields, particularly a kind of conducive to the light-duty height of mountain area escarpment, high filling section taken precautions against natural calamities
Embankment structure and its construction method.
Background technique
Mountain highway is laid in mountain area earth's surface as band-like building, is easy to by geology such as avalanche, landslide, mud-rock flows
The threat of disaster.Particularly with escarpment, high filling section, side neighbour mountain, other side neighbour river or steep cliff, due at this in by
Side where lateral massif where river or steep cliff is recessed to form hawthorn, and height of embankment is high, and horizontal slope is steep, and dams setting, roadbed are formed
Difficulty is typically only capable to the leap that builds a bridge.But bridge anti-disaster ability is weak, is the key node of engineering construction, and during operation
The object for needing to lay special stress on protecting, easily because top avalanche, falling rocks etc. destroy, so as to cause in the impaired even road section traffic volume of bridge
It is disconnected, while bridge speedily carries out rescue work and protects that logical difficulty is big, the period is long, is difficult to resume traffic in the short time.Later period operation maintenance and restoration and reconstruction
When, it is general to use reinforcement bridge or newly-built spanning on the basis of reinforcing rock-fall protection.But this kind of mode, it is contemplated that ground
The uncertainty of matter disaster, it is inevitable still to destroy under the influence of next geological disaster, to cause the section
Traffic safety risk and rehabilitation cost greatly improve.
Summary of the invention
The object of the present invention is to provide a kind of for mountain area escarpment, the light-duty high embankment structure of high filling section and construction
Method promotes the safety of structure and disaster item of traffic of mountain area facility Important Sections to improve the ability of preventing and reducing natural disasters in the section
The ability quickly to resume traffic under part, to reduce highway overall life cycle cost.This structure can also be used for reorganization and expansion, fortune simultaneously
The reparation for the existing bridge that same type section is damaged by avalanche, falling rocks in battalion's project, to improve the ability of preventing and reducing natural disasters in the section,
Avoid unnecessary overlapping investment.
The technical solution adopted by the present invention is that: conducive to the light-duty high embankment structure in mountain area escarpment section taken precautions against natural calamities, including steel
Muscle concrete pile foundation, reinforced concrete cushion cap and roadbed；The reinforced concrete pile foundation is embedded in bearing stratum or rock stratum；The reinforced concrete cushion cap branch
It supports in reinforced concrete pile foundation top and is connected with reinforced concrete pile foundation；The roadbed be light foam concrete roadbed, and fill in
Above reinforced concrete cushion cap.
Further, reinforced concrete protective bulkhead, the bottom end of the reinforced concrete protective bulkhead are provided on the outside of reinforced concrete cushion cap
It is connected with reinforced concrete cushion cap, top upwardly extends, and surrounds to be formed by reinforced concrete protective bulkhead, reinforced concrete cushion cap and pour chamber, institute
It states and pours the intracavitary light foam concrete that fills and constitute the roadbed.
Further, if outside is bordered on the river, bank slope, which is washed away, to be influenced, and further includes toe wall, in the steel of toe wall and side of bordering on the river
The embankment slope and facing wall to be formed are filled between muscle concrete cushion cap；The facing wall is set to the slope surface of embankment slope, and its bottom
End extends at the top of toe wall, and is connected with toe wall, and top extends to the bottom of reinforced concrete cushion cap.
Conducive to the construction method for the light-duty high embankment structure in mountain area escarpment section taken precautions against natural calamities,
Step 1: construction reinforced bar concrete pile foundation；If outside is bordered on the river, bank slope, which is washed away, to be influenced, can first construct border on the river side toe wall,
Facing wall carries out slope protection, construction reinforced bar concrete pipe base again after filling construction platform.
Step 2: construction reinforced bar concrete cushion cap at the top of reinforced concrete pile foundation；
Step 3: pouring reinforcement concrete protective bulkhead is distinguished in two sides above reinforced concrete cushion cap, the bottom end of reinforced concrete protective bulkhead is stretched
Enter in reinforced concrete cushion cap, and surrounds to be formed by reinforced concrete protective bulkhead, reinforced concrete cushion cap and pour chamber；
Step 4: constituting roadbed pouring the intracavitary light foam concrete that pours.Pass through field fabrication and mix cement slurry
And Foam lightweight soil, using pumping placement layer by layer；
Further, after step 4, backfill forms stone falling channel between roadbed and escarpment.
Further, after step 4 or before construction, safeguard procedures are used on the escarpment of inside.
The beneficial effects of the present invention are: it is of the invention, firstly, being changed to roadbed shape by the bridge structure form that will routinely use
Formula passes through, to substantially increase the anti-disaster ability in the section；Secondly, roadbed is poured by high-rise pile cap+light foam concrete
It forms, effective solution escarpment borders on the river the problem of section roadbed filling；Third, wanting roadbed to the bearing capacity of ground
Reduction is asked, escarpment is can be effectively reduced and borders on the river road ground processing difficulty, to improve the stability of escarpment embankment；Its
Four, which is not necessarily to slope, reduces land occupation, avoids influence of the roadbed filling to river of bordering on the river；Fifth, spats
The setting of wall+facing wall improves the stability of roadbed erosion resistibility and the bank slope that borders on the river；Sixth, inside is arranged stone falling channel, sets
The measures such as protective net are set, integrated protection can effectively improve the ability of preventing and reducing natural disasters in the section.
Detailed description of the invention
Fig. 1 is the plan view that the present invention is conducive to the light-duty high embankment structure in mountain area escarpment section taken precautions against natural calamities；
Fig. 2 is the elevation that the present invention is conducive to the light-duty high embankment structure in mountain area escarpment section taken precautions against natural calamities；
Fig. 3 is the A-A cross-sectional view of Fig. 2.
In figure, reinforced concrete pile foundation 1, roadbed 3, reinforced concrete protective bulkhead 4, stone falling channel 5, toe wall 6, is filled reinforced concrete cushion cap 2
Side slope 7, facing wall 8, protective net 9.
Specific embodiment
It is as follows that the present invention is described further with reference to the accompanying drawings and examples:
As shown in Figure 1, Figure 2 and Figure 3, conducive to the light-duty high embankment structure in mountain area escarpment section taken precautions against natural calamities, including reinforced concrete
Pile foundation 1, reinforced concrete cushion cap 2 and roadbed 3；The reinforced concrete pile foundation 1 is embedded in bearing stratum or rock stratum；The reinforced concrete cushion cap 2
It is supported in 1 top of reinforced concrete pile foundation and is connected with reinforced concrete pile foundation 1；The roadbed 3 is light foam concrete roadbed, and is filled out
It builds above reinforced concrete cushion cap 2.
It is disclosed by the invention conducive to the light-duty high embankment structure in mountain area escarpment section taken precautions against natural calamities, firstly, pass through roadbed form
Across the section of the bridge structure form routinely used, the anti-disaster ability in the section is improved, reduce later period operation and is repaired
Cost；Secondly, reinforced concrete pile foundation 1 and reinforced concrete cushion cap 2 form high-rise pile cap, so that roadbed adds light foam to mix by high-rise pile cap
Solidifying soil pours, and fills so that not needing space slope on the outside of the roadbed, does not need manually or mechanically to be compacted when filling, thus
Effective solution escarpment borders on the river the problem that section high-fill roadbed fills；Third, the roadbed 3 that light foam concrete fills
Weight reduction can be effectively reduced escarpment and border on the river road ground processing so that roadbed 3 requires to reduce to the bearing capacity of ground
Difficulty, to improve the stability of escarpment embankment.
It is poured for the ease of roadbed, it is preferred that the outside of reinforced concrete cushion cap 2 is provided with reinforced concrete protective bulkhead 4, the reinforcing bar
The setting of concrete protective bulkhead 4, first composition light foam concrete fill template, limit light foam concrete amount of fill, avoid
Waste；Secondly, be connected by the bottom end of the reinforced concrete protective bulkhead 4 with reinforced concrete cushion cap 2, make light foam concrete fill in
By reinforced concrete protective bulkhead 4, reinforced concrete cushion cap 2 encirclement is formed pour it is intracavitary so that reinforced concrete protective bulkhead 4, reinforced concrete cushion cap 2 and gently
Roadbed 3 made of matter foam concrete fills forms an entirety, plays a protective role to roadbed 3.
In order to improve the stability of roadbed erosion resistibility and the bank slope that borders on the river, it is preferred that as shown in figure 3, further including shield
Foot wall 6 fills the embankment slope 7 and facing wall 8 to be formed between toe wall 6 and reinforced concrete cushion cap 2；The facing wall 8 is arranged
In the slope surface of embankment slope 7, and its bottom end extends to 6 top of toe wall, and is connected with toe wall 6, and top extends to reinforcing bar
The bottom of concrete cushion cap 2.
The above-mentioned construction method conducive to the light-duty high embankment structure in mountain area escarpment section taken precautions against natural calamities, Step 1: construction reinforced bar
Concrete pile foundation 1；If bordering on the river on the outside of locating section, bank slope, which is washed away, to be influenced, and can first construct side toe wall 6, embankment slope 7 and the shield of bordering on the river
Face wall 8 carries out slope protection, construction reinforced bar concrete pile foundation 1 again after filling construction platform, to prevent from washing away influence bank stability；
Step 2: 1 top construction reinforced bar concrete cushion cap 2 of reinforced concrete pile foundation；
Step 3: pouring reinforcement concrete protective bulkhead 4, the bottom end of reinforced concrete protective bulkhead 4 are distinguished in two sides above reinforced concrete cushion cap 2
It protrudes into reinforced concrete cushion cap 2, and is formed by reinforced concrete protective bulkhead 4, the encirclement of reinforced concrete cushion cap 2 and poured chamber；
Step 4: forming light foam concrete by field fabrication and mix cement slurry and Foam lightweight soil, and use
Pumping layering pours light foam concrete in pouring intracavitary composition roadbed 3.
In order to collect top falling rocks, falling rocks is avoided to tumble to the road surface road surface Za Sun, it is preferred that after step 4, in roadbed 3
Backfill forms stone falling channel 5 between escarpment.
After step 4 or before construction, safeguard procedures are used on the escarpment of inside, further function as protective action, improve
Construction and operation safety.The safeguard procedures taken include clearing up the loose crag of escarpment on the inside of original, boulder, and in steeply inclined
The protective nets 9 such as active and passive net are set on slope.
It is above-mentioned to be applicable not only to newly-built road conducive to the light-duty high embankment structure in mountain area escarpment section taken precautions against natural calamities, it applies also for
Later period runs maintenance, restoration and reconstruction, the reparation in reconstruction project after existing bridge damage, and specific restorative procedure is as follows:
Step 1: removing the spanning in escarpment bridge section, only retain pier stud and abutment；
Step 2: being truncated the pile foundation of former bridge pier column to design altitude；
Step 3: slope protection is carried out in the construction of the side near water toe wall 6 in escarpment bridge section, facing wall 8, by spats
6 top surface of wall to 2 bottom surface of reinforced concrete cushion cap fills to form operation platform along slope, and facing wall 8 is arranged on the outside of side slope；
Step 4: the reinforced concrete pile foundation 1 for constructing between pier stud newly-increased；
Step 5: dividing on reinforced concrete cushion cap 2 in pier stud and newly-increased 1 top construction reinforced bar concrete cushion cap 2 of reinforced concrete pile foundation
Section pouring reinforcement concrete protective bulkhead 4 and filling roadbed 3, the roadbed 3 is poured by light foam concrete.
The present invention, firstly, former bridge structure is changed to roadbed by the restorative procedure, to improve combating a natural disaster for the section
Ability, extends the service life in the section, to reduce the maintenance and repair cost of later period operation；Second, by retaining pier
Column and abutment, make it play a supporting role, and take full advantage of original structure construction, reduce the quantity of newly-built reinforced concrete pile foundation 1
With remove, digging soil quantity, to reduce the project amount of reparation；Third, passing through reinforced concrete pile foundation 1 and the common spacer bar of pier stud
Concrete cushion cap 2 forms cushion cap and adds multi-column pier foundation, common to carry roadbed filling demand；Fourth, the setting of toe wall 6 plus facing wall 8 mentions
The high stability of roadbed entirety erosion resistibility and the bank slope that borders on the river.Step 4 carries out after step 3, so that toe wall 6 is right
Side slope forms the platform of construction reinforced bar concrete pile foundation 1 while playing stabilization.In step 2, when pier stud is truncated, until pier stud is cut
Disconnected place cuts the surface concrete of pier stud, retains reinforcing bar, in step 5, the reservation reinforcing bar of pier stud protrudes into reinforced concrete pile foundation 1 and reinforcing bar
Concrete pile foundation 1 pours integrally.
Preferably, when pouring roadbed 3, pouring reinforcement concrete protective bulkhead 4 is distinguished in the two sides first above reinforced concrete cushion cap 2,
The bottom end of reinforced concrete protective bulkhead 4 is protruded into reinforced concrete cushion cap 2, and has reinforced concrete protective bulkhead 4, reinforced concrete cushion cap 2 to surround formation and pour
Build chamber；Then, intracavitary light foam concrete is poured pouring.
Reinforced concrete protective bulkhead 4 not only plays the role of formwork for placing, but also plays and limit roadbed 3 and reinforced concrete cushion cap 2 with respect to position
The effect set.
Claims (6)
1. being conducive to the light-duty high embankment structure in mountain area escarpment section taken precautions against natural calamities, it is characterised in that: including reinforced concrete pile foundation (1), steel
Muscle concrete cushion cap (2) and roadbed (3)；The reinforced concrete pile foundation (1) is embedded in bearing stratum or rock stratum；The reinforced concrete cushion cap (2)
It is supported in reinforced concrete pile foundation (1) top and is connected with reinforced concrete pile foundation (1)；The roadbed (3) is light foam concrete road
Base, and fill above reinforced concrete cushion cap (2).
2. the mountain area escarpment section light-duty high embankment structure as described in claim 1 for being conducive to take precautions against natural calamities, it is characterised in that: in steel
It is provided on the outside of muscle concrete cushion cap (2) reinforced concrete protective bulkhead (4), the bottom end of the reinforced concrete protective bulkhead (4) and reinforced concrete cushion cap
(2) it is connected, top upwardly extends, and is formed by reinforced concrete protective bulkhead (4), reinforced concrete cushion cap (2) encirclement and poured chamber, described to pour
It builds the intracavitary light foam concrete that fills and constitutes the roadbed (3).
3. the mountain area escarpment section light-duty high embankment structure as claimed in claim 1 or 2 for being conducive to take precautions against natural calamities, it is characterised in that:
Further include toe wall (6), fill between the reinforced concrete cushion cap (2) of toe wall (6) and side of bordering on the river the embankment slope to be formed (7) and
Facing wall (8)；The facing wall (8) is set to the slope surface of embankment slope (7), and its bottom end extends at the top of toe wall (6), and
It is connected with toe wall (6), top extends to the bottom of reinforced concrete cushion cap (2).
4. the construction party conducive to the light-duty high embankment structure in mountain area escarpment section taken precautions against natural calamities as described in claims 1 or 2 or 3
Method, it is characterised in that:
Step 1: construction reinforced bar concrete pile foundation (1)；
Step 2: construction reinforced bar concrete cushion cap (2) at the top of reinforced concrete pile foundation (1)；
Step 3: two sides difference pouring reinforcement concrete protective bulkhead (4), the bottom of reinforced concrete protective bulkhead (4) above reinforced concrete cushion cap (2)
End is protruded into reinforced concrete cushion cap (2), and is formed by reinforced concrete protective bulkhead (4), reinforced concrete cushion cap (2) encirclement and poured chamber；
Step 4: constituting roadbed (3) pouring the intracavitary light foam concrete that pours.
5. the construction method of the mountain area escarpment section light-duty high embankment structure as claimed in claim 4 for being conducive to take precautions against natural calamities, special
Sign is: after step 4, backfill forms stone falling channel (5) between roadbed (3) and escarpment.
6. it is conducive to the construction method for the light-duty high embankment structure in mountain area escarpment section taken precautions against natural calamities as described in claim 4 or 5,
It is characterized in that: after step 4 or before construction, safeguard procedures is used on the escarpment of inside.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910141597.4A CN109811607B (en) | 2019-02-26 | 2019-02-26 | Light high embankment structure in mountain steep slope road section beneficial to disaster prevention and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910141597.4A CN109811607B (en) | 2019-02-26 | 2019-02-26 | Light high embankment structure in mountain steep slope road section beneficial to disaster prevention and construction method |
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| CN109811607B CN109811607B (en) | 2022-01-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501662A (en) * | 2020-01-19 | 2020-08-07 | 浙江广川工程咨询有限公司 | Soft soil foundation dyke structure |
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| CN203361033U (en) * | 2013-05-27 | 2013-12-25 | 中铁工程设计咨询集团有限公司 | Protective device for intercepting falling rocks of through cut |
| CN203742230U (en) * | 2014-03-06 | 2014-07-30 | 贵州正业工程技术投资有限公司 | Prevention and treatment structure for karst depression escarpment collapse |
| CN206385411U (en) * | 2016-08-31 | 2017-08-08 | 四川省交通运输厅交通勘察设计研究院 | It is a kind of to prevent the steep embankment ruggedized construction of height of differential settlement |
| CN108374358A (en) * | 2018-05-09 | 2018-08-07 | 中铁二院工程集团有限责任公司 | A kind of rockfall is passively blocked construction |
| CN108951335A (en) * | 2018-09-06 | 2018-12-07 | 四川省交通运输厅公路规划勘察设计研究院 | A kind of light-duty escarpment road structure |
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2019
- 2019-02-26 CN CN201910141597.4A patent/CN109811607B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203361033U (en) * | 2013-05-27 | 2013-12-25 | 中铁工程设计咨询集团有限公司 | Protective device for intercepting falling rocks of through cut |
| CN203742230U (en) * | 2014-03-06 | 2014-07-30 | 贵州正业工程技术投资有限公司 | Prevention and treatment structure for karst depression escarpment collapse |
| CN206385411U (en) * | 2016-08-31 | 2017-08-08 | 四川省交通运输厅交通勘察设计研究院 | It is a kind of to prevent the steep embankment ruggedized construction of height of differential settlement |
| CN108374358A (en) * | 2018-05-09 | 2018-08-07 | 中铁二院工程集团有限责任公司 | A kind of rockfall is passively blocked construction |
| CN108951335A (en) * | 2018-09-06 | 2018-12-07 | 四川省交通运输厅公路规划勘察设计研究院 | A kind of light-duty escarpment road structure |
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| CN111501662A (en) * | 2020-01-19 | 2020-08-07 | 浙江广川工程咨询有限公司 | Soft soil foundation dyke structure |
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