CN101220597A - Skid resistant composite structure of miniature pile and method for reinforcing side slope - Google Patents
Skid resistant composite structure of miniature pile and method for reinforcing side slope Download PDFInfo
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- CN101220597A CN101220597A CNA2008103002889A CN200810300288A CN101220597A CN 101220597 A CN101220597 A CN 101220597A CN A2008103002889 A CNA2008103002889 A CN A2008103002889A CN 200810300288 A CN200810300288 A CN 200810300288A CN 101220597 A CN101220597 A CN 101220597A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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Abstract
The invention discloses a low-cost micro-pile anti-slide composite structure and a side slope reinforcement method in the supporting and retaining reinforcement field of deuterogene soil side slope. The micro-pile anti-slide composite structure is used for fixing the slip mass on a bedrock and comprises at least one group of micro-pile assembly which penetrates the slip mass and anchors on the bedrock; wherein, each micro-pile assembly comprises at least two micro-piles and a crest slab corresponding to the micro-pile; the crest slab is arranged on the slip mass and is fixedly connected with the micro-pile. The side slope reinforcement method includes a step of anchoring the micro-pile on the bedrock and a step of fixedly connecting the crest slab with the micro-pile; the micro-pile adopts a bored pile and the crest slab adopts a cast-in-place reinforced concrete member. The effect of pile group produced by micro-pile assembly arranged in rows and in column raises the slip resistance of rock and soil mass, which renders the unstable rock and soil mass to keep stable and prevents the rock and soil mass from sliding and damaging. The invention is mainly used for supporting and retaining reinforcement structure of unstable rock and soil side slope with medium altitude.
Description
Technical field
The present invention relates to the stable of side slope or slope, an especially a kind of retaining of unsettled alto geotechnical slope is reinforced structure.
Background technology
Alto geotechnical slope means height less than the rock side slope of 30m or the height soil-slope less than 20m, and this side slope generation sliding rupture, gliding mass during along the sliding surface slippage, also can cause bigger engineering slope disaster with respect to basement rock.At present, a retaining of this class side slope is reinforced structures such as employing antislide pile, pre-stress anti-slide pile, antiskid barricade usually, engineering practice shows that the weak point that these structures exist is that engineering quantity is big, long in time limit and cost is high.
Summary of the invention
Reinforce the high deficiency of structure cost for a retaining that overcomes existing alto geotechnical slope, technical problem to be solved by this invention provides lower skid resistant composite structure of miniature pile of a kind of cost and method for reinforcing side slope thereof.
The technical solution adopted for the present invention to solve the technical problems is: skid resistant composite structure of miniature pile, be used for fixing the gliding mass on the basement rock, it comprises that at least one group is passed gliding mass and be anchored to mini pile combination on the basement rock, every group of mini pile combination comprises at least two mini piles and the top board corresponding with aforesaid mini pile, top board is arranged on the gliding mass, and fixedlys connected with aforesaid mini pile.
The present invention also provides a kind of method for reinforcing side slope that adopts aforementioned skid resistant composite structure of miniature pile, and it may further comprise the steps: a. is anchored to mini pile the step on the basement rock of gliding mass; B. the step that top board is fixedlyed connected with mini pile.
The invention has the beneficial effects as follows: a retaining that is used for unsettled alto geotechnical slope is reinforced when constructing, can replace structures such as antislide pile, pre-stress anti-slide pile, antiskid barricade, have can reinforce effectively that geotechnical slope, construction are simple, reduced investment, short positive effect of duration.
Description of drawings
Fig. 1 is the skid resistant composite structure of miniature pile schematic diagram of the domatic layout of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the skid resistant composite structure of miniature pile schematic diagram that toe platform of the present invention is arranged;
Fig. 4 is the A-A sectional view of Fig. 3;
Fig. 5 is the skid resistant composite structure of miniature pile schematic diagram that platform is arranged in the slope of the present invention;
Fig. 6 is the A-A sectional view of Fig. 5;
Fig. 7 is a top board structure schematic diagram of the present invention;
Fig. 8 is the left view of Fig. 7;
Fig. 9 is the cross sectional representation of the single mini pile of the present invention.
Be labeled as 1-mini pile, 2-top board, 3-gliding mass, 4-basement rock, 5-cement slurry among the figure, the 6-steel components, 7-is domatic, platform in the 8-slope, 9-toe platform, 10-sliding surface, 11-anchor hole wall, 12-steel rod member, the inclination angle of β-single mini pile, B-top board spacing, S-top board line-spacing.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
As Fig. 1～shown in Figure 9, skid resistant composite structure of miniature pile of the present invention, be used for fixing the gliding mass 3 on the basement rock 4, it comprises that at least one group is passed gliding mass 3 and be anchored to mini pile combination on the basement rock 4, the combination of every group of mini pile comprises at least two mini piles 1 and the top board 2 corresponding with aforesaid mini pile 1, top board 2 is arranged on the gliding mass 3, and fixedlys connected with aforesaid mini pile 1.
As Fig. 1, Fig. 3 and shown in Figure 5, line-spacing S, spacing B between each top board 2 should determine according to Thrust of Landslide, and the quantity that is arranged as the top board 2 of row laying on gliding mass 3 also should be determined according to the domatic area of institute's reinforcing side slope.The top board face can be rectangle, square or other shapes.
As Fig. 2, Fig. 4 and shown in Figure 6, the direction that the mini pile 1 that is connected with same top board 2 passes gliding mass can have angle β perpendicular to top board 2 or with top board 2 vertical line directions.The quantity and the compound mode that are fixed on the mini pile 1 on the top board 2 can be determined according to Thrust of Landslide.
As shown in Figure 2, the mini pile that three alignment aspects are arranged of fixedlying connected with top board 2, every row's mini pile has three, three mini piles of middle that row, middle mini pile is perpendicular to top board 2, and two mini piles in both sides and top board 2 vertical line directions have angle β, and two rows' six roots of sensation mini pile and top board 2 vertical line directions have angle β on the limit, the size of β value by Thrust of Landslide with satisfy sliding surface 10 skid resistances and determine.
The invention also discloses the method for reinforcing side slope that adopts aforementioned skid resistant composite structure of miniature pile, it may further comprise the steps:
A. mini pile 1 is anchored to the step on the basement rock 4 of gliding mass 3;
B. the step that top board 2 is fixedlyed connected with mini pile 1.
The method for reinforcing side slope of employing skid resistant composite structure of miniature pile of the present invention, many mini piles 1 penetrate in the basement rock 4 and anchor connection with it, and the mini pile 1 of some is mutually permanently connected by top board 2 forms the mini pile combination, ground situation according to side slope, adopt the combination of many group mini piles, consequent efficiency of pile groups has improved the shear strength of geotechnical body, makes whole unstable geotechnical body keep stablizing and can not producing slippage, has prevented the sliding rupture of geotechnical slope.
It should be noted that project situation according to this place's side slope, should smooth domatic or flat upper surface as last in construction, layout, bore anchor hole again; The length of mini pile 1 and mini pile 1 anchor into the degree of depth of basement rock 4 to be determined according to Force Calculation, the size of top board 2 and distribution, and the quantity of the mini pile 1 that is connected with monolithic top board 2 is also determined according to Force Calculation.
Thus, described step a comprises step by step following:
A1. prepare steel components 6 and bore anchor hole on side slope, the length of steel components 6 and the anchor hole degree of depth are suitable;
A2. the steel components among the step a1 6 inserts in the described anchor hole;
A3. the cement mortar slurries that configure are injected and arranged in the anchor hole of steel components 6;
Treat slurries solidify reach requirement and form cement slurry 5 after, completing steps a.
According to the degree of depth of anchor hole, should give certain grouting pressure when it should be noted that slip casting, make the slurries diffusion, improve slurry 5 quality.
B1. molding, install the top board reinforcing bar and with steel components 6 welding of reserving;
B2. pour into a mould the concrete of top board 2, all reinforcing bars and steel components 6 welding positions are enclosed in the concrete;
After treating that concrete strength reaches requirement, completing steps b.
Behind completing steps b as required to domatic engineering protection or the vegetative protection of carrying out.
Described steel components 6 is made up of one or more steel rod member 12, and concrete quantity is determined by rod member basal area and mechanical calculation.They should be fixed together when adopting many rod members, as shown in Figure 9, three steel components 6 that steel rod member 12 is joined together to form exactly.Steel rod member 12 can adopt screw-thread steel, steel pipe or other steel section bars to make.
As Fig. 1～shown in Figure 6, described mini pile 1 and top board 2 can be arranged in domatic 7 and/or toe platform 9 and/or slope on the platform 8.
Embodiment one
See figures.1.and.2, mini pile antiskid composite construction of the present invention is arranged in domatic 7 places, and it is included in the domatic a plurality of top boards 2 arranged by certain line-spacing S and spacing B of going up, and the mini pile of fixing on each top board 21 passes gliding mass 3 and sliding surface 10 is anchored in the basement rock 4.The efficiency of pile groups of being formed by antiskid mini pile in a row, that become row to lay improves the rock mass shear strength, makes whole unstable geotechnical body become as a whole, and can not produce slippage.
Embodiment two
With reference to Fig. 3, Fig. 4 and Fig. 5, Fig. 6, mini pile antiskid compound pile structure of the present invention, be arranged in platform 8 places in toe platform 9 and the slope, it is included in a plurality of top boards 2 that platform 8 places arrange by certain spacing B in toe platform 9 and the slope, and the mini pile of fixing on each top board 21 passes gliding mass 3 and sliding surface 10 is anchored in the basement rock 4.The efficiency of pile groups of forming by skid resistant composite structure of miniature pile in a row, that become row to lay has improved the rock mass shear strength, makes whole unstable geotechnical body become as a whole, and can not produce slippage.
Site operation can carry out usually as follows:
(1) preparation of construction, preparation steel components 6;
(2) smooth domatic or flat upper surface is layouted, boring;
(3) the Drilling anchor hole is to projected depth, and steel components 6 inserts in the anchor holes, and certain-length is reserved in the aperture so that and top board 2 anchor connections;
(4) the cement mortar slurries that configure are injected in the anchor hole by certain grouting pressure;
(5) treat slurries solidify reach requirement after, molding, install the top board reinforcing bar and with steel components 6 welding of reserving;
(6) concrete of cast top board 2 is enclosed in the concrete all reinforcing bars and steel components 6 welding positions;
(7) carry out as engineering protection or vegetative protections such as spray anchors domatic as required.
Claims (9)
1. skid resistant composite structure of miniature pile, be used for fixing the gliding mass (3) on the basement rock (4), it is characterized in that: it comprises that at least one group is passed gliding mass (3) and be anchored to mini pile combination on the basement rock (4), every group of mini pile combination comprises at least two mini piles (1) and the top board (2) corresponding with aforesaid mini pile (1), top board (2) is arranged on the gliding mass (3), and fixedlys connected with aforesaid mini pile (1).
2. skid resistant composite structure of miniature pile as claimed in claim 1 is characterized in that: be arranged as row and be laid with at least two top boards (2) on gliding mass (3).
3. skid resistant composite structure of miniature pile as claimed in claim 2 is characterized in that: the direction that the mini pile (1) that is connected with same top board (2) passes gliding mass can have angle of inclination beta perpendicular to direction perpendicular to top board (2) or with top board.
4. adopt the method for reinforcing side slope as claim 1,2 or 3 described skid resistant composite structure of miniature pile, it is characterized in that: it may further comprise the steps:
A. mini pile (1) is passed gliding mass (3) and be anchored to step on the basement rock (4);
B. the step that top board (2) is fixedlyed connected with mini pile (1).
5. method for reinforcing side slope as claimed in claim 4, it is characterized in that: step a comprises step by step following:
A1. prepare steel components (6) and bore anchor hole on side slope, the length and the anchor hole degree of depth of steel components (6) are suitable;
A2. the steel components (6) among the step a1 inserts in the described anchor hole;
A3. the cement mortar slurries that configure are injected by certain grouting pressure and arranged in the anchor hole of steel components (6);
Treat slurries solidify reach requirement and form cement slurry (5) after, completing steps a.
6. method for reinforcing side slope as claimed in claim 4, it is characterized in that: step b comprises step by step following:
B1. molding, install the top board reinforcing bar and with steel components (6) welding of reserving;
B2. pour into a mould the concrete of top board (2), all reinforcing bars and steel components (6) welding position is enclosed in the concrete; After treating that concrete strength reaches requirement, completing steps b.
7. method for reinforcing side slope as claimed in claim 4 is characterized in that: behind completing steps b as required to domatic engineering protection or the vegetative protection of carrying out.
8. method for reinforcing side slope as claimed in claim 4 is characterized in that: described steel components (6) comprises the steel rod member (12) that one or more interfixes and links.
9. method for reinforcing side slope as claimed in claim 4 is characterized in that: described mini pile (1) and top board (2) are arranged in domatic (7) and/or toe platform (9) and/or the slope on the platform (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103002889A CN101220597A (en) | 2008-01-31 | 2008-01-31 | Skid resistant composite structure of miniature pile and method for reinforcing side slope |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008103002889A CN101220597A (en) | 2008-01-31 | 2008-01-31 | Skid resistant composite structure of miniature pile and method for reinforcing side slope |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021911A (en) * | 2010-11-26 | 2011-04-20 | 中国水电顾问集团成都勘测设计研究院 | Side slope reinforcing method and structure |
| CN102330438A (en) * | 2011-07-13 | 2012-01-25 | 中国地质科学院地质力学研究所 | Method for testing characters of micro piles in landslide control |
| CN102425155A (en) * | 2011-08-29 | 2012-04-25 | 北京科技大学 | Method for reinforcing overlying shallow rockmass in mined-out area |
| CN102493464A (en) * | 2011-11-23 | 2012-06-13 | 中国地质科学院地质力学研究所 | Landslide control method based on micropile groups |
| CN104685132A (en) * | 2012-07-20 | 2015-06-03 | 伊藤组土建株式会社 | Pile foundation and pile foundation installation method |
| CN104831721A (en) * | 2015-04-30 | 2015-08-12 | 广西大学 | Divergent anchor rod supporting and protecting structure and construction method thereof |
| CN105839659A (en) * | 2016-04-14 | 2016-08-10 | 中国地质科学院探矿工艺研究所 | Debris flow retaining dam base reinforcing method based on composite micro-piles |
| CN106088118A (en) * | 2016-08-19 | 2016-11-09 | 河海大学 | The method for designing of compound soil-baffling structure |
| CN107217679A (en) * | 2017-08-02 | 2017-09-29 | 中国地质环境监测院 | A kind of megalith mixture landslide micro combination pile group buttress reinforcement means |
| CN107227742A (en) * | 2017-08-02 | 2017-10-03 | 中国地质环境监测院 | A kind of megalith mixture landslide micro combination pile group rib body Retaining Wall Reinforcement method |
| CN108560349A (en) * | 2018-06-14 | 2018-09-21 | 中国电建集团成都勘测设计研究院有限公司 | The high embankment retaining structure in soft clay area |
| CN109208617A (en) * | 2018-10-25 | 2019-01-15 | 长沙理工大学 | Redbed rock slope flexible comprehensive supporting structure and construction method thereof |
| CN110593277A (en) * | 2019-03-14 | 2019-12-20 | 中铁二院工程集团有限责任公司 | Abrupt slope antiskid reinforced structure and construction method |
| CN112681348A (en) * | 2020-12-28 | 2021-04-20 | 中水北方勘测设计研究有限责任公司 | Slope treatment method |
| CN114892687A (en) * | 2022-05-07 | 2022-08-12 | 中钢集团马鞍山矿山研究总院股份有限公司 | A advance reinforced structure that advances that is used for opencut rock quality bedding slope to administer |
-
2008
- 2008-01-31 CN CNA2008103002889A patent/CN101220597A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021911B (en) * | 2010-11-26 | 2012-07-25 | 中国水电顾问集团成都勘测设计研究院 | Side slope reinforcing method and structure |
| CN102021911A (en) * | 2010-11-26 | 2011-04-20 | 中国水电顾问集团成都勘测设计研究院 | Side slope reinforcing method and structure |
| CN102330438A (en) * | 2011-07-13 | 2012-01-25 | 中国地质科学院地质力学研究所 | Method for testing characters of micro piles in landslide control |
| CN102425155A (en) * | 2011-08-29 | 2012-04-25 | 北京科技大学 | Method for reinforcing overlying shallow rockmass in mined-out area |
| CN102425155B (en) * | 2011-08-29 | 2013-11-27 | 北京科技大学 | Method for reinforcing overlying shallow rockmass in mined-out area |
| CN102493464A (en) * | 2011-11-23 | 2012-06-13 | 中国地质科学院地质力学研究所 | Landslide control method based on micropile groups |
| CN102493464B (en) * | 2011-11-23 | 2014-04-09 | 中国地质科学院地质力学研究所 | Landslide control method based on micropile groups |
| CN104685132B (en) * | 2012-07-20 | 2017-02-22 | 伊藤组土建株式会社 | Pile foundation and pile foundation installation method |
| CN104685132A (en) * | 2012-07-20 | 2015-06-03 | 伊藤组土建株式会社 | Pile foundation and pile foundation installation method |
| CN104831721A (en) * | 2015-04-30 | 2015-08-12 | 广西大学 | Divergent anchor rod supporting and protecting structure and construction method thereof |
| CN105839659A (en) * | 2016-04-14 | 2016-08-10 | 中国地质科学院探矿工艺研究所 | Debris flow retaining dam base reinforcing method based on composite micro-piles |
| CN106088118A (en) * | 2016-08-19 | 2016-11-09 | 河海大学 | The method for designing of compound soil-baffling structure |
| CN107217679A (en) * | 2017-08-02 | 2017-09-29 | 中国地质环境监测院 | A kind of megalith mixture landslide micro combination pile group buttress reinforcement means |
| CN107227742A (en) * | 2017-08-02 | 2017-10-03 | 中国地质环境监测院 | A kind of megalith mixture landslide micro combination pile group rib body Retaining Wall Reinforcement method |
| CN107227742B (en) * | 2017-08-02 | 2018-06-22 | 中国地质环境监测院 | A kind of megalith mixture landslide micro combination pile group rib body Retaining Wall Reinforcement method |
| CN107217679B (en) * | 2017-08-02 | 2018-07-06 | 中国地质环境监测院 | A kind of megalith mixture landslide micro combination pile group buttress reinforcement means |
| CN108560349A (en) * | 2018-06-14 | 2018-09-21 | 中国电建集团成都勘测设计研究院有限公司 | The high embankment retaining structure in soft clay area |
| CN109208617A (en) * | 2018-10-25 | 2019-01-15 | 长沙理工大学 | Redbed rock slope flexible comprehensive supporting structure and construction method thereof |
| CN110593277A (en) * | 2019-03-14 | 2019-12-20 | 中铁二院工程集团有限责任公司 | Abrupt slope antiskid reinforced structure and construction method |
| CN112681348A (en) * | 2020-12-28 | 2021-04-20 | 中水北方勘测设计研究有限责任公司 | Slope treatment method |
| CN114892687A (en) * | 2022-05-07 | 2022-08-12 | 中钢集团马鞍山矿山研究总院股份有限公司 | A advance reinforced structure that advances that is used for opencut rock quality bedding slope to administer |
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Open date: 20080716 |