CN110106759A - A kind of coastal highway subgrade anti-floating pile system - Google Patents

A kind of coastal highway subgrade anti-floating pile system Download PDF

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Publication number
CN110106759A
CN110106759A CN201910440673.1A CN201910440673A CN110106759A CN 110106759 A CN110106759 A CN 110106759A CN 201910440673 A CN201910440673 A CN 201910440673A CN 110106759 A CN110106759 A CN 110106759A
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CN
China
Prior art keywords
friction
friction pile
slope protection
pile
roadbed
Prior art date
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.)
Granted
Application number
CN201910440673.1A
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Chinese (zh)
Other versions
CN110106759B (en
Inventor
沙成满
王彪
孙健
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Northeastern University China
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Northeastern University China
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to CN201910440673.1A priority Critical patent/CN110106759B/en
Publication of CN110106759A publication Critical patent/CN110106759A/en
Application granted granted Critical
Publication of CN110106759B publication Critical patent/CN110106759B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C3/00Foundations for pavings
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C3/00Foundations for pavings
    • E01C3/04Foundations produced by soil stabilisation
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/20Securing of slopes or inclines
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/10Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
    • E02D31/12Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/48Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length

Abstract

The invention belongs to subgrade engineering technical field more particularly to a kind of coastal highway subgrade anti-floating pile systems, including coastal roadbed, the friction pile device being arranged in roadbed;Wherein, the friction pile device include: rub pile body and be arranged in it is described friction pile body on resistance to plucking attachment;The friction pile body includes head and bar portion;The bottom end of the bar portion has overhead structure;The circumferential surface on the head is serrated structure;The quantity of the friction pile device is one or more.When the friction pile device quantity is multiple, further includes: friction pile body transverse connecting rod;Two or more friction pile device series connection can be horizontally integrated by the friction pile body transverse connecting rod.Roadbed anti-floating pile system provided by the invention can be effectively solved coastal area highway since underground high water level generates destruction of the water buoyancy to subgrade and pavement.

Description

A kind of coastal highway subgrade anti-floating pile system
Technical field
The invention belongs to subgrade engineering technical field more particularly to a kind of coastal highway subgrade anti-floating pile systems.
Background technique
The level of ground water of coastal area highway is higher, can generate biggish water buoyancy to roadbed, so that it is broken that road surface occurs It is bad.Anti-floating pile belongs to uplift pile, and pile body bears pulling force, and common anti-floating pile stress is also to transmit from stake top to stake bottom, pile body stress Size changes with the variation of level of ground water, and uplift pile refers to the general name for resisting the various pile-type that building shifts up.It is anti- Structure is pulled out to need that the pulling force gradually increased is provided, in water level decreasing, is capable of providing the carrying for meeting demand when water level floats Power.
Summary of the invention
(1) technical problems to be solved
For existing technical problem, the present invention provides a kind of coastal highway subgrade anti-floating pile system can be effective Coastal area highway is solved since underground high water level generates destruction of the water buoyancy to subgrade and pavement.
(2) technical solution
In order to achieve the above object, the main technical schemes that the present invention uses include:
A kind of coastal highway subgrade anti-floating pile system, including coastal roadbed, the friction pile device being arranged in roadbed;
Wherein, the friction pile device include: rub pile body and be arranged in it is described friction pile body on resistance to plucking attachment;
The friction pile body includes head and bar portion;
The bottom end of the bar portion has overhead structure;
The circumferential surface on the head is serrated structure;
The quantity of the friction pile device is one or more;
The circumferential surface of the bar portion is equipped with irregular micro-protrusions;
The irregular micro-protrusions include glass microballoon;
The raised amplitude of the irregular micro-protrusions is not more than the radius of the protrusion.
Preferably, when the friction pile device quantity is multiple, further includes: friction pile body transverse connecting rod;
The friction pile body transverse connecting rod can horizontally connect two or more friction pile devices One.
Preferably, the friction pile body transverse connecting rod is the split type body of rod;
The friction pile body transverse connecting rod includes at least two unit bodies of rod;
The structure of described two unit bodies of rod is identical.
Preferably, the both ends of the unit body of rod are equipped with connector;
It can be fixedly connected by means of the connector between described two unit bodies of rod.
Preferably, the resistance to plucking attachment is multiple friction blades;
The multiple friction blade is uniformly fixedly installed along the circumferential surface of the body of rod;
Each friction blade symmetrical configuration in the vertical direction.
Preferably, further includes: one or more slope protection devices;
The slope protection device is fixed in the side slope of the coastal roadbed.
Preferably, the roadbed for slope protection includes: slope protection baffle and slope protection anchor pole;
The slope protection anchor pole is fixedly connected with the slope protection baffle;
The slope protection anchor pole is fixed in the matrix of the coastal roadbed side slope;
The slope protection baffle can be arranged on the coastal roadbed side slope by means of the slope protection anchor pole.
Preferably, the head is transversely provided with clamping structure or cross-perforating;
The friction pile device can be by means of the clamping structure or cross-perforating and the friction pile transverse connecting rod Connection.
Preferably, the size of the cross-perforating and the size of the friction pile transverse connecting rod match;
The material of the friction pile transverse connecting rod is rigid.
(3) beneficial effect
The beneficial effects of the present invention are: a kind of coastal highway subgrade anti-floating pile system provided by the invention, in practical application In, friction pile device and slope protection baffle can resist water buoyancy, working mechanism be friction pile body and rub blade by with Water buoyancy is offset in Tu Yan friction in ground;In level of ground water decline, Integral connection structure also can be to a certain degree The upper differential settlement for resisting roadbed, while the crack generated by stress raisers can also be prevented to a certain extent;It rubs Wipe stake can be excessive in road surface rainfall or when subgrade drainage is obstructed play a protective role to roadbed side slope, working mechanism is logical That crosses the anchoring of anchor pole passes to side slope baffle, and side slope baffle is made to play the role of slope protection.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of coastal highway subgrade anti-floating pile system provided by the invention;
Fig. 2 is a kind of structural schematic diagram of the slope protection device of coastal highway subgrade anti-floating pile system provided by the invention.
[description of symbols]
1: slope protection baffle;2: slope protection anchor pole;3: friction pile body;4: friction blade;5: friction pile transverse connecting rod.
Specific embodiment
In order to preferably explain the present invention, in order to understand, with reference to the accompanying drawing, by specific embodiment, to this hair It is bright to be described in detail.
Present embodiment discloses a kind of coastal highway subgrade anti-floating pile systems, including coastal roadbed, setting as shown in Figure 1: Friction pile device in roadbed.
Wherein, the friction pile device includes: that friction pile body 3 and the resistance to plucking being arranged in the friction pile body 3 are attached Part.
In detail, friction pile body 3 described in the present embodiment includes head and bar portion;The bottom end of the bar portion has barb Structure;The circumferential surface on the head is serrated structure.
Overhead structure described here can be improved the ground grip ability and breakout capacity of friction pile body 3, in addition, head Circumferential surface, which is set as laciniation, can further increase contact area, enhance between friction pile device and coastal roadbed indirectly Marriage relation.
Here it should be noted that the quantity of friction pile device described in the present embodiment is one or more.
When only part is likely to occur underground high water level water buoyancy and damages to subgrade and pavement, a sheet can be used Friction pile device as described in the examples and Coastal Road base join protection road surface be not by the destruction of buoyancy force of underground water.
Correspondingly, when the friction pile device quantity is multiple, further includes: friction pile body transverse connecting rod 5;It is described Two or more friction pile device series connection can be horizontally integrated by friction pile body transverse connecting rod 5.
Two or more friction pile devices are set according to actual needs, while increasing friction pile body transverse connecting rod 5, Effect is that the multiple friction piles of same layer are connected as an entirety, improves its overall stability, also there is prevention to a certain extent The effect of pavement cracking.
In addition, the circumferential surface of bar portion described in the present embodiment is equipped with irregular micro-protrusions;It is described irregular miniature convex Rising includes glass microballoon;The raised amplitude of the irregular micro-protrusions is not more than the radius of the protrusion.Glass described here Physicochemical property possessed by glass microballon can enhance the binding force of friction pile and roadbed.
Friction pile body transverse connecting rod described in the present embodiment 5 is the split type body of rod;The friction pile body is lateral Connecting rod 5 includes at least two unit bodies of rod.
Here it is noted that the structure of two unit bodies of rod described in the present embodiment is identical.
Correspondingly, the both ends of the unit body of rod described here are equipped with connector;Between described two unit bodies of rod It can be fixedly connected by means of the connector.
Resistance to plucking attachment described in the present embodiment is multiple friction blades 4;Week of the multiple friction blade 4 along the body of rod Face is uniformly fixedly installed;Each friction blade 4 symmetrical configuration in the vertical direction.
It is noted that friction blade 4 described here is prefabricated by armored concrete, effect is to increase to contact with the soil body Surface area, and then increase anti-floating friction, resist water buoyancy.
Finally, should supplement: the connection type of friction pile body and friction pile body transverse connecting rod here: friction The setting of pile body transverse connecting rod can be determined according to different geological conditions, can also be arranged between two friction pile bodies when necessary Connection.
Semi-rigid bolt anchor connection also can be used in friction pile body and friction pile body transverse connecting rod, the advantage is that 1) relative deformation of node region can be relieved the concentration of the stress in rod piece;2) position of joints energy dissipation effect can reduce displacement Effect;3) roadbed disaster Shi Kezuo locality maintenance process.
It is as shown in Figure 2: the anti-floating pile system provided in the present embodiment further include: one or more slope protection devices;The shield Slope device is fixed in the side slope of the coastal roadbed.
Specifically, roadbed for slope protection described in the present embodiment includes: slope protection baffle 1 and slope protection anchor pole 2;The slope protection anchor Bar 2 is fixedly connected with the slope protection baffle 1.
The slope protection anchor pole 2 is fixed in the matrix of the coastal roadbed side slope;The slope protection baffle 1 can be by It is arranged on the coastal roadbed side slope in the slope protection anchor pole 2.
In detail, slope protection baffle 1: it is prefabricated by armored concrete, it is connect with slope protection anchor pole 2, effect is by Thrust of Landslide Pass to slope protection anchor pole;Slope protection anchor pole 2: it is prefabricated by armored concrete, 1 is connect with slope protection baffle, effect is to prevent roadbed Landslide provides anchor force.
Finally, it is noted that head described in this implementation is transversely provided with clamping structure or cross-perforating;The friction Stake device can be connect by means of the clamping structure or cross-perforating with the friction pile transverse connecting rod 5.
The size of cross-perforating described in the present embodiment and the size of the friction pile transverse connecting rod 5 match;It is described The material of friction pile transverse connecting rod 5 is rigid.
Slope protection baffle 1: it is prefabricated by armored concrete, it is connect with slope protection anchor pole 2, effect is that Thrust of Landslide is passed to shield Slope anchor pole.
Slope protection anchor pole 2: it is prefabricated by armored concrete, it is connect with slope protection baffle 1, effect is to prevent Subgrade Landslide from providing Anchor force.
Rub pile body 3: it is prefabricated by armored concrete, it works and generates friction with the soil body, resist water buoyancy.
Rub blade 4: prefabricated by armored concrete, effect is to increase the surface area contacted with the soil body, and then increase anti- Floating friction, resists water buoyancy.
Friction pile transverse connecting rod 5: prefabricated by armored concrete, effect is by the multiple friction pile device connections of same layer For an entirety, its overall stability is improved, also plays the role of preventing pavement cracking to a certain extent.
Friction pile is made of head, the body of rod and friction blade, and wherein shape can be arranged according to road quality classification concrete condition in head Shape size;Body of rod length is matched according to road base layer bed course size to be arranged;The blade setting transversal flaps that rub and vertical piece combine, greatly Small setting is generally in the same size with pile cover, and the bottom is to meet frictional force needs can also suitably increase leaf blade size and be larger than stake Cap, the number of blade can select conforming blade quantity according to codes and standards, but for economy consideration, not be arranged excessively generally
When level of ground water is excessively high, biggish water buoyancy is generated, has to roadbed and generates larger buoyancy, at this time in the present embodiment The friction pile device and friction pile body transverse connecting rod 5 of offer combine, and can resist water buoyancy, and working mechanism is friction pile Ontology 3 and friction blade 4 are by offsetting water buoyancy with the Tu Yan friction in ground;Road is avoided in level of ground water decline The differential settlement of base, while the crack generated by stress raisers can be also prevented to a certain extent;Additionally it is possible to On road surface, rainfall is excessive or when subgrade drainage is obstructed plays a protective role to roadbed side slope, and working mechanism is to pass through slope protection anchor The anchoring of bar 2 passes to slope protection baffle 1, and slope protection baffle 1 is made to play the role of slope protection.
The technical principle of the invention is described above in combination with a specific embodiment, these descriptions are intended merely to explain of the invention Principle shall not be construed in any way as a limitation of the scope of protection of the invention.Based on explaining herein, those skilled in the art It can associate with other specific embodiments of the invention without creative labor, these modes fall within this hair Within bright protection scope.

Claims (9)

1. a kind of coastal highway subgrade anti-floating pile system, which is characterized in that including coastal roadbed, the friction pile being arranged in roadbed Device;
Wherein, the friction pile device include: rub pile body and be arranged in it is described friction pile body on resistance to plucking attachment;
The friction pile body includes head and bar portion;
The bottom end of the bar portion has overhead structure;
The circumferential surface on the head is serrated structure;
The quantity of the friction pile device is one or more;
The circumferential surface of the bar portion is equipped with irregular micro-protrusions;
The irregular micro-protrusions include glass microballoon;
The raised amplitude of the irregular micro-protrusions is not more than the radius of the protrusion.
2. anti-floating pile system according to claim 1, which is characterized in that when the friction pile device quantity is multiple, Further include: friction pile body transverse connecting rod;
Two or more friction pile device series connection can be horizontally integrated by the friction pile body transverse connecting rod.
3. anti-floating pile system according to claim 2, which is characterized in that
The friction pile body transverse connecting rod is the split type body of rod;
The friction pile body transverse connecting rod includes at least two unit bodies of rod;
The structure of described two unit bodies of rod is identical.
4. anti-floating pile system according to claim 3, which is characterized in that
The both ends of the unit body of rod are equipped with connector;
It can be fixedly connected by means of the connector between described two unit bodies of rod.
5. anti-floating pile system according to claim 4, which is characterized in that
The resistance to plucking attachment is multiple friction blades;
The multiple friction blade is uniformly fixedly installed along the circumferential surface of the body of rod;
The multiple friction blade includes cross blade and vertical blade;
Each cross blade symmetrical configuration in the vertical direction.
6. anti-floating pile system according to claim 5, which is characterized in that
Further include: one or more slope protection devices;
The slope protection device is fixed in the side slope of the coastal roadbed.
7. anti-floating pile system according to claim 6, which is characterized in that
The roadbed for slope protection includes: slope protection baffle and slope protection anchor pole;
The slope protection anchor pole is fixedly connected with the slope protection baffle;
The slope protection anchor pole is fixed in the matrix of the coastal roadbed side slope;
The slope protection baffle can be arranged on the coastal roadbed side slope by means of the slope protection anchor pole.
8. anti-floating pile system according to claim 7, which is characterized in that
The head is transversely provided with clamping structure or cross-perforating;
The friction pile device can be connect by means of the clamping structure or cross-perforating with the friction pile transverse connecting rod.
9. anti-floating pile system according to claim 8, which is characterized in that
The size of the cross-perforating and the size of the friction pile transverse connecting rod match;
The material of the friction pile transverse connecting rod is rigid.
CN201910440673.1A 2019-05-24 2019-05-24 Coastal highway subgrade anti-floating pile system Expired - Fee Related CN110106759B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910440673.1A CN110106759B (en) 2019-05-24 2019-05-24 Coastal highway subgrade anti-floating pile system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910440673.1A CN110106759B (en) 2019-05-24 2019-05-24 Coastal highway subgrade anti-floating pile system

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CN110106759A true CN110106759A (en) 2019-08-09
CN110106759B CN110106759B (en) 2020-07-17

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110485230A (en) * 2019-09-17 2019-11-22 招商局重庆交通科研设计院有限公司 A kind for the treatment of structures and construction method of high water level weak soil Bridgehead by Blastig
CN111549773A (en) * 2020-05-20 2020-08-18 温州安荷桥科技有限公司 Uplift pile foundation and construction method thereof
CN112411288A (en) * 2020-11-17 2021-02-26 同济大学 Geotextile-containing light soil widened embankment anti-floating structure and construction method thereof

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Publication number Priority date Publication date Assignee Title
JP2009191452A (en) * 2008-02-12 2009-08-27 Jfe Steel Corp Composite friction pile
JP2011006946A (en) * 2009-06-26 2011-01-13 Penta Ocean Construction Co Ltd Method for soil improvement
CN202658600U (en) * 2012-07-06 2013-01-09 长安大学 Ecological composite anti-slide pile
CN103711135A (en) * 2014-01-13 2014-04-09 中国地质大学(武汉) Anti-slide pile of jointed arch structure
CN104153348A (en) * 2014-07-10 2014-11-19 大连大金马基础建设有限公司 Concave-convex friction pile
CN204000854U (en) * 2014-08-21 2014-12-10 重庆工商职业学院 Anti-floatable stake
CN104404969A (en) * 2014-11-12 2015-03-11 天津宇畅地震工程技术有限公司 Reinforced slide-resistant pile
CN204875819U (en) * 2015-09-05 2015-12-16 马斓 Highway subgrade side slope antiskid
CN205329680U (en) * 2015-11-05 2016-06-22 山东科技大学 Antitorque pile foundation structure of resistance to plucking
CN106498953A (en) * 2016-11-23 2017-03-15 中国科学院、水利部成都山地灾害与环境研究所 Cut slope composite supporting construction and its construction method
CN107489128A (en) * 2017-07-31 2017-12-19 安徽诺鑫自动化设备有限公司 A kind of protector for Hydraulic and Hydro-Power Engineering side slope
CN207525740U (en) * 2017-11-02 2018-06-22 安徽建筑大学 A kind of barb-shaped prefabricated pile suitable for soft clay area

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009191452A (en) * 2008-02-12 2009-08-27 Jfe Steel Corp Composite friction pile
JP2011006946A (en) * 2009-06-26 2011-01-13 Penta Ocean Construction Co Ltd Method for soil improvement
CN202658600U (en) * 2012-07-06 2013-01-09 长安大学 Ecological composite anti-slide pile
CN103711135A (en) * 2014-01-13 2014-04-09 中国地质大学(武汉) Anti-slide pile of jointed arch structure
CN104153348A (en) * 2014-07-10 2014-11-19 大连大金马基础建设有限公司 Concave-convex friction pile
CN204000854U (en) * 2014-08-21 2014-12-10 重庆工商职业学院 Anti-floatable stake
CN104404969A (en) * 2014-11-12 2015-03-11 天津宇畅地震工程技术有限公司 Reinforced slide-resistant pile
CN204875819U (en) * 2015-09-05 2015-12-16 马斓 Highway subgrade side slope antiskid
CN205329680U (en) * 2015-11-05 2016-06-22 山东科技大学 Antitorque pile foundation structure of resistance to plucking
CN106498953A (en) * 2016-11-23 2017-03-15 中国科学院、水利部成都山地灾害与环境研究所 Cut slope composite supporting construction and its construction method
CN107489128A (en) * 2017-07-31 2017-12-19 安徽诺鑫自动化设备有限公司 A kind of protector for Hydraulic and Hydro-Power Engineering side slope
CN207525740U (en) * 2017-11-02 2018-06-22 安徽建筑大学 A kind of barb-shaped prefabricated pile suitable for soft clay area

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110485230A (en) * 2019-09-17 2019-11-22 招商局重庆交通科研设计院有限公司 A kind for the treatment of structures and construction method of high water level weak soil Bridgehead by Blastig
CN111549773A (en) * 2020-05-20 2020-08-18 温州安荷桥科技有限公司 Uplift pile foundation and construction method thereof
CN112411288A (en) * 2020-11-17 2021-02-26 同济大学 Geotextile-containing light soil widened embankment anti-floating structure and construction method thereof

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