CN109322315A - A kind of retaining structure and its construction method for high Steep Slope Embankment location - Google Patents
A kind of retaining structure and its construction method for high Steep Slope Embankment location Download PDFInfo
- Publication number
- CN109322315A CN109322315A CN201811324974.XA CN201811324974A CN109322315A CN 109322315 A CN109322315 A CN 109322315A CN 201811324974 A CN201811324974 A CN 201811324974A CN 109322315 A CN109322315 A CN 109322315A
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- section
- cantilever segment
- pile
- steep slope
- anchor pile
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- 238000010276 construction Methods 0.000 title claims abstract description 17
- 238000004873 anchoring Methods 0.000 claims abstract description 36
- 210000000481 breast Anatomy 0.000 claims abstract description 23
- 238000005553 drilling Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 239000011435 rock Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 241001365789 Oenanthe crocata Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a kind of retaining structures for high Steep Slope Embankment location, including the anchor pile and breast boards being arranged along embankment longitudinal gap, the anchor pile includes the anchoring section of the cantilever segment and subsurface on ground, it is characterized in that, the cantilever segment, anchoring section coaxial arrangement, the cross section of the cantilever segment be rectangle, anchoring section cross section be it is round, the breast boards is hung between the cantilever segment of each adjacent anchor pile.The present invention is using large-diameter circular, the anchor pile of rectangular section combination form.The section of this pile-type below ground pile body anchoring section uses large-diameter circular, and rotary drilling rig or percussive drill is facilitated to construct, and the section of the above pile body cantilever segment in ground uses rectangle, builds method construction with traditional mould.
Description
Technical field
The present invention relates to geotechnical engineering reinforcing side slope technique fields, in particular to a kind of branch for high Steep Slope Embankment location
Keep off structure and its construction method.
Background technique
Traffic of mountain area and piece of smooth land construction field are often arranged greatly in high abrupt slope embankment embankment location to improve embankment stability
Section rectangle anchor pile (friction pile)+earth-retaining board combining structure pattern carries out supporting and retaining system.It is anti-that pile body below ground part provides anchoring
Railway embankment after power, pile body and breast boards undertakes sliding force and pressure of banketing.The China of Publication No. CN 206873487U is real
Disclose a kind of rib stake formula peg board retaining wall with new patent, including pile body anchoring section, pile body cantilever segment, in adjacent pile body cantilever
Longitudinally disposed breast boards between section.The pile body anchoring section of anchor pile, the barrette that pile body cantilever segment is size uniformity.
There are two kinds of rectangle and circle in traditional anchoring stake body section, and existing major defect is as follows:
(1) circular cross-section anchor pile can not carry out Slate hanging construction between stake and stake, be unable to satisfy applying of banketing after stake
Work requirement.
(2) rectangular section anchor pile can hang breast boards after stake or hang breast boards in pile body setting bracket, then
Carry out fill construction；But it does not have corresponding construction machinery, and big section rectangle anchor pile under ground portion uses manually digging hole operation,
Work efficiency is low, and high Steep Slope Embankment sets a position and is normally at hypsography low-lying location, and often underground water is relatively abundant, needs manually to drop
Water, and when broken rock and soil, there is very big personal safety hidden danger in the easy collapse hole under groundwater seepage and acting by external hydrostatic pressure.
More than summary, circular cross-section anchor pile is not suitable for embankment filled soil location after stake；There are nothings for rectangular section anchor pile
Corresponding construction machinery, manually digging hole work efficiency be low, be not suitable for broken rock and soil or underground water development location, personal safety hidden danger are big etc.
Disadvantage.
Therefore, it is necessary to develop it is a kind of construct convenient, operation efficiently, pile conveniently, safely hanging plate for high abrupt slope road
The retaining structure and its construction method in dike location.
Summary of the invention
The purpose of the present invention is to solve the deficiency of the above background technology, provide a kind of convenient, operation of construction efficiently, at
The retaining structure and its construction method for high Steep Slope Embankment location of stake conveniently, safely hanging plate.
The technical solution of the present invention is as follows: a kind of retaining structure for high Steep Slope Embankment location, including between embankment longitudinal direction
Every the anchor pile and breast boards of setting, the anchor pile includes the anchoring section of the cantilever segment and subsurface on ground, feature
It is,
The cantilever segment, anchoring section coaxial arrangement, the cross section of the cantilever segment be rectangle, anchoring section cross section be round
Shape, the breast boards are hung between the cantilever of each adjacent anchor pile.
Preferably, the anchoring section cross sectional radius is greater than or equal to cantilever segment cross section circumradius.
Preferably, the cantilever segment includes a pair of along the longitudinally disposed the first side wall of embankment and a pair of along embankment laterally setting
Second sidewall.
Further, the first side wall length d≤second sidewall length h on the cross section of the cantilever segment.
Further, the breast boards longitudinally hang on adjacent anchor pile and closes on the first side wall on the inside of embankment.
Further, the breast boards is longitudinally hung on the bracket for the second sidewall setting that adjacent anchor pile closes on.
Preferably, the anchor pile is integrally formed.
The present invention also provides a kind of construction method of above-mentioned retaining structure for high Steep Slope Embankment location, steps are as follows:
A. below ground utilizes rotary drilling rig or percussive drill pore-forming at anchor pile design；
B. the circle pile cages of prefabricated anchoring section, then the welding binding cantilever segment above circle pile cages are transferred in hole
Rectangle steel reinforcement cage, one-piece casting anchoring section, cantilever section concrete after installation template；
C., prefabricated breast boards is installed between cantilever segment after concrete reaches intensity.
The invention has the benefit that
1. using large-diameter circular+rectangular section combination form anchor pile.This pile-type below ground pile body anchoring section
Section uses large-diameter circular, and rotary drilling rig or percussive drill is facilitated to construct, and the section of the above pile body cantilever segment in ground uses square
Shape builds method construction with traditional mould.
2. lower pile body anchoring section diameter of section is greater than or equal to upper pile body cantilever segment rectangular section circumscribed circle diameter, make lower stake
Body anchoring section is as the embedded stabilization that is built on the rock, to be conducive to the stability of upper pile body after banketing；It adopts in upper pile body cantilever segment section
With rectangle, it is convenient for seamless installation between breast boards and anchor pile.
3. anchor pile is formed using one-time-concreting, make anchor pile good integrity, binding force is strong between upper pile body, lower pile body.
Detailed description of the invention
Fig. 1 is retaining structure schematic diagram of the present invention for high Steep Slope Embankment location (along embankment transverse direction)
Fig. 2 is retaining structure schematic diagram of the present invention for high Steep Slope Embankment location (along embankment longitudinal direction)
Fig. 3 is anchor pile top view
Fig. 4 is anchor pile perspective view
Wherein: 1- anchor pile 2- breast boards 3- cantilever segment 4- anchoring section 5- the first side wall 6- second sidewall 7- embankment.
Specific embodiment
The present invention is described in further detail for specific embodiment below.
As shown in Figs 1-4, a kind of retaining structure for high Steep Slope Embankment location provided by the invention, including along embankment 7
The anchor pile 1 and breast boards 2 of longitudinal gap setting, anchor pile 1 include the anchoring section 4 of the cantilever segment 3 and subsurface on ground,
Cantilever segment 3, anchoring section 4 are coaxially disposed, the cross section of cantilever segment 3 be rectangle, anchoring section 4 cross section be it is round, by breast boards 2
It hang between the cantilever segment 3 of each adjacent anchor pile 1.
4 cross sectional radius of anchoring section is greater than or equal to the circumradius of 3 cross section of cantilever segment.Anchoring section in the present embodiment
4 is along the uniform square pile of axial cross section, cantilever segment 3 are the circle stake uniform along axial cross section, 4 cross sectional radius of anchoring section etc.
Circumradius in 3 cross section of cantilever segment obtains cantilever segment 3 in 4 cross-sectional extent of anchoring section with this larger-size
Rectangular cross section.
Cantilever segment 3 includes a pair of along the longitudinally disposed the first side wall 5 of embankment 7 and a pair of second be laterally arranged along embankment 7
Side wall 6.5 length d of the first side wall is less than or equal to 6 length h of second sidewall on the cross section of cantilever segment 3.Breast boards 2 is longitudinal to be hung
It is arranged on the first side wall 5 that adjacent anchor pile 1 is located at 7 laterally inboard of embankment, or in the second sidewall 6 of adjacent anchor pile 1
Breast boards 2 is hung after bracket.
Anchor pile 1 is integrally formed in the present embodiment, and the axial direction of anchor pile 1 is vertical direction.4 cross sectional radius R of anchoring section
1.0~1.5m generally can be used；1.5~2.5m generally can be used in 5 length d of the first side wall on the cross section of cantilever segment 3；Cantilever segment
1.5~2.75m generally can be used in 6 length h of second sidewall on 3 cross section；3 axial length L of cantilever segment18m is usually no more than,
4 axial length L of anchoring section2It is determined by Structure Calculation, typically no less than length L1；High Steep Slope Embankment slope gradient generally takes 1:1.5
~1:2；Away from S in the stake of the anchoring section 4 of two adjacent anchor piles 1,3~6m generally can be used.
The construction method of the above-mentioned retaining structure for high Steep Slope Embankment location, step are as follows:
A. below ground utilizes rotary drilling rig or percussive drill pore-forming to answer core in pore forming process at 1 design of anchor pile
To landform, geologic information, it is found that when geological conditions and design data are misfitted (such as Limestone pavement develops solution cavity, rate of decay changes,
Native stone interface variation, formation variation etc.), should be contacted in time with designing unit, to be verified in time according to practical geological conditions or
Adjusted design；
B. the circle pile cages of prefabricated anchoring section 4, then the welding binding cantilever above circle pile cages are transferred in hole
The rectangle steel reinforcement cage of section 3 installs whole continuous placing anchoring section 4,3 concrete of cantilever segment after 3 outboard template of cantilever；
C. after concrete reaches intensity between cantilever segment the prefabricated breast boards 2 of installation template, then banket after carrying out stake
Construction.
Claims (8)
1. a kind of retaining structure for high Steep Slope Embankment location, including the anchor pile (1) that is arranged along embankment (7) longitudinal gap with
And breast boards (2), the anchor pile (1) include the anchoring section (4) of the cantilever segment (3) and subsurface on ground, which is characterized in that
The cantilever segment (3), anchoring section (4) coaxial arrangement, the cross section of the cantilever segment (3) are the cross of rectangle, anchoring section (4)
Section is circle, and the breast boards (2) hang between the cantilever segment (3) of each adjacent anchor pile (1).
2. being used for the retaining structure in high Steep Slope Embankment location as described in claim 1, which is characterized in that the anchoring section (4)
Cross sectional radius is greater than or equal to cantilever segment (3) cross section circumradius.
3. being used for the retaining structure in high Steep Slope Embankment location as described in claim 1, which is characterized in that the cantilever segment (3)
Including a pair along the longitudinally disposed the first side wall (5) of embankment (7) and a pair of second sidewall (6) being laterally arranged along embankment (7).
4. being used for the retaining structure in high Steep Slope Embankment location as claimed in claim 3, which is characterized in that the cantilever segment (3)
Cross section on the first side wall (5) length d≤second sidewall (6) length h.
5. being used for the retaining structure in high Steep Slope Embankment location as claimed in claim 3, which is characterized in that the breast boards (2)
Longitudinal direction hang on adjacent anchor pile (1) and closes on the first side wall (5) on the inside of embankment (7).
6. being used for the retaining structure in high Steep Slope Embankment location as claimed in claim 3, which is characterized in that the breast boards (2)
Longitudinal direction is hung on the bracket for second sidewall (6) setting that adjacent anchor pile (1) is closed on.
7. being used for the retaining structure in high Steep Slope Embankment location as described in claim 1, which is characterized in that the anchor pile (1)
It is integrally formed.
8. a kind of construction method for the retaining structure for being used for high Steep Slope Embankment location as described in claim 1, which is characterized in that
Step are as follows:
A. below ground utilizes rotary drilling rig or percussive drill pore-forming at anchor pile (1) design；
B. the circle pile cages of prefabricated anchoring section (4), then the welding binding cantilever segment above circle pile cages are transferred in hole
(3) rectangle steel reinforcement cage, one-piece casting anchoring section (4), cantilever segment (3) concrete after installation template；
C., prefabricated breast boards (2) are installed between cantilever segment after concrete reaches intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324974.XA CN109322315A (en) | 2018-11-08 | 2018-11-08 | A kind of retaining structure and its construction method for high Steep Slope Embankment location |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324974.XA CN109322315A (en) | 2018-11-08 | 2018-11-08 | A kind of retaining structure and its construction method for high Steep Slope Embankment location |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109322315A true CN109322315A (en) | 2019-02-12 |
Family
ID=65260531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811324974.XA Pending CN109322315A (en) | 2018-11-08 | 2018-11-08 | A kind of retaining structure and its construction method for high Steep Slope Embankment location |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109322315A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216216A (en) * | 2021-03-24 | 2021-08-06 | 云南省交通规划设计研究院有限公司 | Active reinforcing method for built-in anti-slide pile suitable for unstable slope |
| CN114482091A (en) * | 2022-02-09 | 2022-05-13 | 中铁二十三局集团第四工程有限公司 | Construction method of side slope anchoring pile |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216216A (en) * | 2021-03-24 | 2021-08-06 | 云南省交通规划设计研究院有限公司 | Active reinforcing method for built-in anti-slide pile suitable for unstable slope |
| CN114482091A (en) * | 2022-02-09 | 2022-05-13 | 中铁二十三局集团第四工程有限公司 | Construction method of side slope anchoring pile |
| CN114482091B (en) * | 2022-02-09 | 2024-06-04 | 中铁二十三局集团第四工程有限公司 | Construction method of slope anchoring pile |
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