CN102002957A - Slope retaining structure - Google Patents
Slope retaining structure Download PDFInfo
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- CN102002957A CN102002957A CN 201010591177 CN201010591177A CN102002957A CN 102002957 A CN102002957 A CN 102002957A CN 201010591177 CN201010591177 CN 201010591177 CN 201010591177 A CN201010591177 A CN 201010591177A CN 102002957 A CN102002957 A CN 102002957A
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Abstract
The invention discloses a slope retaining structure, belonging to a slope protection technology and aiming at providing a novel retaining structure which is simple in construction and low in construction cost and has beautiful slope. The essential technical scheme of the invention is as follows: multiple anchor rods or anchor cables for retaining are arranged between the stable region and non-stable region of a slope, wherein each anchor rod or anchor cable consists of an external expanded hole grouting section arranged in the non-stable region, a normal hole grouting section penetrating through the non-stable region and penetrating into the stable region, and an anchor bar connecting the external expanded hole grouting section and the normal hole grouting section; and the external expanded hole grouting section, the normal hole grouting section and the anchor bar are connected to form one complete anchor rod or anchor cable which is anchored in the stable region of the slope, and no reinforced concrete lattice beam or sprayed concrete pavement is arranged on the slope. The slope retaining structure is mainly used for slope retaining.
Description
Technical field
The present invention relates to a kind of side slope protection technology, more particularly, it relates generally to a kind of slope retaining structure that is applied to civil engineering.
Background technology
The slope retaining mode of present civil engineering mainly contains anchor pole (anchor cable)+lattice beam, anchor pole+sprayed mortar, soil blocking pile (wall), anchor pole (anchor cable)+soil blocking pile (wall) etc. and with the combination of upper type.And anchor pole wherein (anchor cable)+lattice beam is the most common way of present slope retaining, promptly is made up of lattice beam that is arranged at the side slope face and the anchor pole (anchor cable) that is arranged in the sloping body, and anchor pole (anchor cable) is anchored on the lattice beam, but grass planting in the lattice beam.This support pattern is widely used, and its shortcoming is that the lattice beam construction is cumbersome, and cost is higher, and when domatic out-of-flatness, lattice beam easily twists, and lattice beam should embed in the side slope.Because slope retaining is permanent supporting, along with long-term rain drop erosion, infiltration, easy and domatic the coming to nothing of lattice beam in case come to nothing, just loses and the drawknot effect of anchor pole (anchor cable) to side slope.
Anchor pole+concrete spraying support also is the comparatively common a kind of mode of slope retaining, promptly form by sprayed mortar surface layer that is arranged at the side slope face and the anchor pole that is arranged in the sloping body, anchor pole with penetrate the concrete pavement drawknot.The advantage of this mode is that cost is lower, easy construction, and domatic protection against erosion ability is strong.Shortcoming is not attractive in appearance, and the slope drainage pore volume easily stops up and causes dangerous.
Soil blocking pile (wall) supporting, simple soil blocking pile (wall) supporting is unwell to tall and big side slope, often uses with anchor pole (anchor cable), and soil blocking pile (wall) generally is applied to the supporting of toe.
Anchor pole (anchor cable)+soil blocking pile (wall) supporting, this also is comparatively common a kind of mode of slope retaining, promptly forms anchor pole (anchor cable) and soil blocking pile (wall) drawknot by soil blocking pile that is arranged at the side slope face (wall) and the anchor pole (anchor cable) that is arranged in the sloping body.Its shortcoming is that cost is very high, and difficulty of construction is bigger, just uses at the vertical sloping body place of contiguous construction of structures for general.
In the above-mentioned various support form, except soil blocking pile (wall) itself has a certain stability and a protective function, lattice beam and sprayed mortar surface layer itself are not prop up protective function, promptly when anchor pole (anchor cable) inefficacy, lattice beam and sprayed mortar surface layer do not have support action to sloping body is stable, only domatic protection against erosion tool are had certain effect.Lattice beam cost height is easily with domatic coming to nothing.The sprayed mortar surface layer is not attractive in appearance, and the slope drainage pore volume easily stops up and causes dangerous.The reaming Duan Jun of anchor pole or anchor cable is positioned at the stable region anchoring of side slope.
Summary of the invention
The object of the present invention is to provide a kind of novel slope retaining structure, can overcome the shortcoming of prior art, and construction is simple, low cost, and domatic also attractive in appearance.The reaming slip casting Duan Jun of traditional anchor pole or anchor cable is positioned at the stable region anchoring of side slope, and the present invention is provided with reaming slip casting section for the supporting and protection structure at the domatic place of cancellation in unstable region, solves the adhesion stress problem of anchor pole (anchor cable) at unstable region.
The present invention seeks to be achieved through the following technical solutions: a kind of slope retaining structure, be many anchor poles or the anchor cable that supporting is set between stable region and unstable region, wherein said anchor pole or anchor cable by the outer reaming slip casting section that is arranged on unstable region, run through unstable region and deeply the normal hole slip casting section to the stable region and is connected outside reaming slip casting section and normally the dowel of hole slip casting section form, outer reaming slip casting section, normal hole slip casting section and dowel are connected to become one whole anchor pole or anchor cable, and are anchored in the stable region of side slope.
Further, in the above-mentioned slope retaining structure, the normal hole slip casting section in the described stable region also is connected with reaming slip casting section at least one section.
In the above-mentioned slope retaining structure, the dowel of described anchor pole or anchor cable only in the section of reaming slip casting outside and the interior reaming slip casting section with the injecting cement paste anchoring, in normal hole slip casting section by sleeve pipe and injecting cement paste isolation.Be convenient to dowel is applied prestressing force, realize pressure type anchor rod or anchor cable structure, protect dowel effectively.
In the above-mentioned slope retaining structure, the distribution density of described anchor pole or anchor cable is 1～4 meter, and concrete distribution density should be calculated according to actual conditions and determine.
In the above-mentioned slope retaining structure, described outer reaming slip casting section and interior reaming slip casting section are 2～6:1 with the diameter ratio of normal hole slip casting section, and concrete diameter is than determining according to the size of actual conditions calculating and consideration construction equipment power.
The relative prior art of the present invention has the following advantages and beneficial effect:
1, great advantage of the present invention is that the side slope surface no longer is provided with retaining structure, and promptly the side slope surface does not have lattice beam or sprayed mortar or supporting piling wall.Construction is simple, low cost.Because the side slope surface no longer is provided with retaining structure, during the slope retaining design, anchor pole (anchor cable) adhesion stress of (promptly free section) in slide mass must balance each other with the design uplift resistance of anchor pole (anchor cable), but free section is generally not long, and the present invention promptly solves anchor pole (anchor cable) hypodynamic problem of bonding of (i.e. freedom section) in slide mass by the reaming section is set.Can adopt the method for mechanical hole reaming or hand digging to carry out reaming, form the reaming section.At domatic place, current can not wash away the reaming section, so can not lose efficacy with domatic coming to nothing, have overcome the shortcoming of lattice beam and sprayed mortar surface layer.
2, because the side slope surface no longer is provided with retaining structure, therefore domatic very attractive in appearance, the side slope of not coming out is outwardly handled through supporting, and the side slope surface can be as the natural slope grass planting, reduction natural environment style and features.The side slope face can be established geotextiles or gauze wire cloth, and geotextiles or gauze wire cloth are fixed on the outer reaming slip casting section 3, and both convenient domatic grass planting can prevent domatic little Rolling Stone again.
3, the anchor pole of slope retaining (anchor cable) all is permanent supporting basically; permanent protection to anchor pole (anchor cable) requires very high; but conventional common bolt (anchor cable) is a tension type; slip casting is ftractureed easily and is caused the dowel corrosion; the present invention is set to pressure-type with anchor pole (anchor cable); injecting cement paste can not ftracture, thereby, can effectively protect dowel.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in further detail, but does not constitute any limitation of the invention.
Fig. 1 is the supporting and protection structure schematic diagram of the specific embodiment of the invention 1;
Fig. 2 is the supporting and protection structure schematic diagram of the specific embodiment of the invention 2;
Fig. 3 is the supporting and protection structure schematic diagram of the specific embodiment of the invention 3.
Among the figure: stable region 1, unstable region 2, outer reaming slip casting section 3, normal hole slip casting section 4, dowel 5, interior reaming slip casting section 6, sleeve pipe 7.
The specific embodiment
Slope retaining structure of the present invention, be many anchor poles or the anchor cable that supporting is set between stable region 1 and unstable region 2, anchor pole or anchor cable by the outer reaming slip casting section 3 that is arranged on unstable region 2, run through unstable region 2 and deeply the normal hole slip casting section 4 to stable region 1 and is connected outside reaming slip casting section 3 and normally the dowel 5 of hole slip casting section 4 form, outer reaming slip casting section 3, normal hole slip casting section 4 and dowel 5 are connected to become one whole anchor pole or anchor cable, and are anchored in the stable region 1 of side slope.
Reaming slip casting section 6 in the present invention also can be provided with in the stable region 1 of side slope, then the uplift resistance of anchor pole or anchor cable will be greatly improved, and normal hole slip casting section 4 is connected to become one whole anchor pole or anchor cable with outer reaming slip casting section 3 with interior reaming slip casting section 6.
For dowel 5 antiseptic powers that improve anchor pole or anchor cable; only section of reaming slip casting outside 3 and the 6 interior and injecting cement paste anchorings of interior reaming slip casting section; in normal hole slip casting section 4, isolate by plastic bushing 7 with injecting cement paste; dowel 5 is applied prestressing force; then the injecting cement paste of anchor pole or anchor cable all is in pressured state; injecting cement paste can not ftracture, and dowel 5 is had good protective effect.
Consult shown in Figure 1, for adopting civil engineering slope retaining structure of the present invention.According to designing and calculating, determine the potential slip-crack surface position that side slope is possible, anchor pole or anchor cable are set after, determine the uplift resistance value of anchor pole or anchor cable, according to slip-crack surface position and uplift resistance value, determine the anchorage length of anchor pole or anchor cable and length and the anchor pole or the anchor cable distribution density of outer reaming slip casting section 3.
Adopt φ 150 with normal hole slip casting section 4, it be example that outer reaming slip casting section 3 adopts φ 400, constructs by following step, (A) holes at side slope place construction φ 150 earlier, and this boring is passed unstable region 2 and entered stable region 1 and reach the design anchorage length; (B) extract φ 150 drill bits after, use φ 400 drill bits reaming slip casting section 3 outside the construction of domatic place instead; (C) behind the clear hole, following dowel 5, slip casting; (D) according to designing requirement, dowel 5 reaming slip casting outside section 3 and injecting cement paste bonding also can adopt ground tackle to be anchored in outer reaming slip casting section 3 places; (E) domatic steel concrete lattice beam or the sprayed mortar surface layer of no longer being provided with can be established geotextiles or gauze wire cloth at the side slope face, and geotextiles or gauze wire cloth are fixed on the outer reaming slip casting section 3, the domatic grass planting that carries out.
Consulting shown in Figure 2ly, in the work progress of the foregoing description 1, when stable region 1 is soil layer or completely decomposed, strong-weathered rock, is the length that shortens the anchorage zone, can be in stable region 1 be provided with reaming slip casting section 6.
Adopt φ 150 with normal hole slip casting section 4, outer reaming slip casting section 3 and interior reaming slip casting section 6 all adopt φ 400 to be example, construct by following step, (A) earlier in side slope place construction φ 150 borings, this boring is passed unstable region 2 and is entered stable region 1 and reach design length; (B) extract φ 150 drill bits after, use φ 400 reaming bits reaming slip casting section 6 in the construction of stable region 1 instead; (C) extract φ 400 reaming bits to domatic place, the outer reaming slip casting section 3 of constructing; (D) behind the clear hole, following dowel 5, slip casting; (E) dowel 5 can adopt the dual mode anchoring: one, dowel 5 reaming slip casting outside section 3 and interior reaming slip casting section 6 and injecting cement paste bonding.Its two, in the reaming slip casting section 6, the other end adopted ground tackle that dowel is anchored in the outer reaming slip casting section 3 in dowel 5 one ends were bonded in; (F) the side slope face is established geotextiles or gauze wire cloth, and geotextiles or gauze wire cloth are fixed on the outer reaming slip casting section 3, the domatic grass planting that carries out.
Consult shown in Figure 3ly, in the work progress of the foregoing description 2, be provided with reaming slip casting section 6 in two sections in the stable region 1, can reach bigger resistance to plucking effect like this.
Claims (5)
1. slope retaining structure, be many anchor poles or the anchor cable that supporting is set between stable region (1) and unstable region (2), it is characterized in that, described anchor pole or anchor cable are by the outer reaming slip casting section (3) that is arranged on unstable region (2), run through unstable region (2) and deeply the normal hole slip casting section (4) in stable region (1) and is connected outside the reaming slip casting section (3) and normal dowel (5) composition of hole slip casting section (4), outer reaming slip casting section (3), normal hole slip casting section (4) and dowel (5) are connected to become one whole anchor pole or anchor cable, and are anchored in the stable region (1) of side slope.
2. slope retaining structure according to claim 1 is characterized in that, the normal hole slip casting section (4) in described stable region (1) also is connected with reaming slip casting section (6) at least one section.
3. slope retaining structure according to claim 1, it is characterized in that, the dowel of described anchor pole or anchor cable (5) only in the section of reaming slip casting outside (3) and the interior reaming slip casting section (3) with the injecting cement paste anchoring, in normal hole slip casting section (2), isolate by sleeve pipe (7) and injecting cement paste.
4. according to the arbitrary described slope retaining structure of claim 1 to 3, it is characterized in that the distribution density of described anchor pole or anchor cable is 1～4 meter.
5. according to the arbitrary described slope retaining structure of claim 1 to 4, it is characterized in that described outer reaming slip casting section (3) and interior reaming slip casting section (6) are 2～6:1 with the diameter ratio of normal hole slip casting section (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010591177 CN102002957B (en) | 2010-12-16 | 2010-12-16 | Slope retaining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010591177 CN102002957B (en) | 2010-12-16 | 2010-12-16 | Slope retaining structure |
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| Publication Number | Publication Date |
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| CN102002957A true CN102002957A (en) | 2011-04-06 |
| CN102002957B CN102002957B (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010591177 Expired - Fee Related CN102002957B (en) | 2010-12-16 | 2010-12-16 | Slope retaining structure |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691299A (en) * | 2012-06-19 | 2012-09-26 | 中国水利水电第七工程局有限公司 | High-geostress dam foundation excavation construction technology |
| CN103046547A (en) * | 2012-12-31 | 2013-04-17 | 中国建筑西南勘察设计研究院有限公司 | Anchorage and anchor rod combined retaining structure |
| CN103924607A (en) * | 2014-05-08 | 2014-07-16 | 中国地质科学院探矿工艺研究所 | Landslide self-adaptive anchoring system |
| CN104746515A (en) * | 2013-12-26 | 2015-07-01 | 深圳市工勘岩土工程有限公司 | Reverse pre-stressed anchor cable reinforcement structure |
| CN104805849A (en) * | 2015-05-07 | 2015-07-29 | 重庆交通大学 | Side slope-supporting system |
| CN104818723A (en) * | 2015-05-07 | 2015-08-05 | 重庆交通大学 | Anti-sliding pile for slope support |
| CN104963351A (en) * | 2015-07-08 | 2015-10-07 | 中冶集团武汉勘察研究院有限公司 | Reinforced structure for reinforcing treatment of artificial filled soil slopes and construction method thereof |
| CN105544565A (en) * | 2016-01-14 | 2016-05-04 | 广西大学 | Side slope anti-sliding supporting structure |
| CN105649092A (en) * | 2016-01-18 | 2016-06-08 | 中国水利水电第八工程局有限公司 | Slope supporting method for crumbly strata |
| CN106592588A (en) * | 2016-11-22 | 2017-04-26 | 成都四海岩土工程有限公司 | Bit-expanded anchor rope construction method by using mechanical hole expansion |
| CN108360515A (en) * | 2018-04-27 | 2018-08-03 | 中国铁道科学研究院深圳研究设计院 | It is segmented reaming pressure anchor wire structure and construction method |
| CN111851409A (en) * | 2020-07-30 | 2020-10-30 | 四川港航建设工程有限公司 | Dam slope surface repairing structure and construction method |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691299A (en) * | 2012-06-19 | 2012-09-26 | 中国水利水电第七工程局有限公司 | High-geostress dam foundation excavation construction technology |
| CN102691299B (en) * | 2012-06-19 | 2014-08-13 | 中国水利水电第七工程局有限公司 | High-geostress dam foundation excavation construction technology |
| CN103046547A (en) * | 2012-12-31 | 2013-04-17 | 中国建筑西南勘察设计研究院有限公司 | Anchorage and anchor rod combined retaining structure |
| CN104746515A (en) * | 2013-12-26 | 2015-07-01 | 深圳市工勘岩土工程有限公司 | Reverse pre-stressed anchor cable reinforcement structure |
| CN103924607A (en) * | 2014-05-08 | 2014-07-16 | 中国地质科学院探矿工艺研究所 | Landslide self-adaptive anchoring system |
| CN103924607B (en) * | 2014-05-08 | 2016-03-02 | 中国地质科学院探矿工艺研究所 | Landslide self-adaptive anchoring system |
| CN104818723A (en) * | 2015-05-07 | 2015-08-05 | 重庆交通大学 | Anti-sliding pile for slope support |
| CN104805849A (en) * | 2015-05-07 | 2015-07-29 | 重庆交通大学 | Side slope-supporting system |
| CN104818723B (en) * | 2015-05-07 | 2016-07-27 | 重庆交通大学 | Slope retaining friction pile |
| CN104963351A (en) * | 2015-07-08 | 2015-10-07 | 中冶集团武汉勘察研究院有限公司 | Reinforced structure for reinforcing treatment of artificial filled soil slopes and construction method thereof |
| CN105544565A (en) * | 2016-01-14 | 2016-05-04 | 广西大学 | Side slope anti-sliding supporting structure |
| CN105649092A (en) * | 2016-01-18 | 2016-06-08 | 中国水利水电第八工程局有限公司 | Slope supporting method for crumbly strata |
| CN106592588A (en) * | 2016-11-22 | 2017-04-26 | 成都四海岩土工程有限公司 | Bit-expanded anchor rope construction method by using mechanical hole expansion |
| CN108360515A (en) * | 2018-04-27 | 2018-08-03 | 中国铁道科学研究院深圳研究设计院 | It is segmented reaming pressure anchor wire structure and construction method |
| CN111851409A (en) * | 2020-07-30 | 2020-10-30 | 四川港航建设工程有限公司 | Dam slope surface repairing structure and construction method |
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Granted publication date: 20130522 Termination date: 20131216 |