CN109914448A - A kind of composite supporting construction widened for rock matter embankment and construction method - Google Patents
A kind of composite supporting construction widened for rock matter embankment and construction method Download PDFInfo
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- CN109914448A CN109914448A CN201910305558.3A CN201910305558A CN109914448A CN 109914448 A CN109914448 A CN 109914448A CN 201910305558 A CN201910305558 A CN 201910305558A CN 109914448 A CN109914448 A CN 109914448A
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- anchor
- prestressed anchor
- rock
- rock matter
- embankment
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Abstract
The invention discloses a kind of composite supporting construction widened for rock matter embankment and construction methods, the structure includes bottom plate, shingle nail, counterfort wall and prestressed anchor, the bottom plate is set to the bottom of the welding with filler wire side of rock matter embankment, the counterfort wall is set in the welding with filler wire of rock matter embankment perpendicular to bottom plate, and the inner end of the prestressed anchor is anchored in the rock slope of rock matter embankment.The support pattern combined with prestressed anchor with counterfort wall due to the present invention is instead of all using the support pattern of prestressed anchor, greatly reduced the usage amount of prestressed anchor, reduce the cost of slope retaining structure；Since counterfort wall is connect by the present invention by prestressed anchor with rock slope, counterfort wall horizontal bearing capacity can be effectively increased, when improving the setting height of counterfort wall, increases the stability against overturning of total；Since present invention employs built-in anchor heads, by the complete sealing of built-in anchor head inside shingle nail, rainwash erosion is avoided.
Description
Technical field
The present invention relates to slope support engineering technology, in particular to a kind of composite supporting construction widened for rock matter embankment
And construction method.
Background technique
In the slope project of proximate building or road widening project, exposed rock has very big unstability,
It needs to carry out supporting to handle.In the high slope rockmass processing of the buildings such as residential quarters, it is usually taken and directly beats anchor pile
Support pattern, this support pattern cost is high, and bearing capacity is relatively small, cannot stop excessively to banket, while multiple anchor heads are naked
It exposes outside, not only will receive rainwash erosion, but also increase bring risk due to pedestrian's climbing.
Summary of the invention
To solve the above problems existing in the prior art, the present invention will design that a kind of low cost, bearing capacity are big, can prevent rain
The composite supporting construction widened for rock matter embankment and construction method for washing away erosion of water.
To achieve the goals above, technical scheme is as follows: a kind of composite support widened for rock matter embankment
Structure, including bottom plate, shingle nail, counterfort wall and prestressed anchor, the bottom plate are set to the welding with filler wire one of rock matter embankment
The bottom of side, the shingle nail are set to the outside of rock matter embankment perpendicular to bottom plate, and the counterfort wall is set perpendicular to bottom plate
It is placed in the welding with filler wire of rock matter embankment and vertical with shingle nail simultaneously；The inner end of the prestressed anchor is anchored in rock matter
In the rock slope of embankment, outer end is connect with shingle nail by built-in anchor head；The prestressed anchor has multiple；Described helps
Wall wall have it is multiple, along rock matter embankment length direction arrange.
Further, the inner end of the prestressed anchor is anchored in the rock slope of Gao Yanzhi embankment by anchoring section
In, be placed in welding with filler wire one section of prestressed anchor is coated with anticorrosion material.
Further, the prestressed anchor is installed on the middle position of two counterfort walls.
Further, the prestressed anchor has multilayer, is provided in rock matter embankment from top to bottom.
A kind of construction method for the composite supporting construction widened for rock matter embankment, comprising the following steps:
Step 1: basement process is carried out according to the design position of counterfort wall in the welding with filler wire side of rock matter embankment.
Step 2: setting up the integral mold plate of counterfort wall, reserves the groove of design size in built-in anchor head design position, and
By prestressed anchor design direction reserving hole channel.
Step 3: the extending direction along reserving hole channel is marked in rock slope corresponding position.
Step 4: it is laid with reinforcement foundation, shingle nail reinforcing bar and counterfort wall reinforcing bar, is increased near the design position of built-in anchor head
Add reinforcing bar laying density.
Step 5: the one-piece casting of total is completed, and conserves the intensity for reaching design.
Step 6: banketing from bottom to top and is densified to bottom prestressed anchor position, drills in rock slope mark position,
Place prestressed anchor and perfusion mortar, maintenance to design strength.
Step 7: disposing billet in the reserved groove of counterfort wall, and the prestressed anchor other end is passed through reserving hole channel
Through shingle nail and billet, built-in anchor head is installed and completes tensioning fastening.
Step 8: continuing to banket and be densified to the mark of one layer of armature boring, go to step six, until it is pre- to complete multilayer
The setting of stress anchor pole.
Step 9: benefit tensioning is carried out for prestressed anchor from bottom to top, and is smoothed out at built-in anchor head place with mortar
Reserved groove, forms protective layer, completes sealing off and covering anchorage.
Compared with prior art, the invention has the following advantages:
1, the support pattern combined with prestressed anchor with counterfort wall due to the present invention is instead of all using prestressing force
The support pattern of anchor pole greatly reduced the usage amount of prestressed anchor, reduce the cost of slope retaining structure；
2, counterfort wall is connect by prestressed anchor due to the present invention with rock slope, it is horizontal that counterfort wall can be effectively increased
Bearing capacity increases the stability against overturning of total when improving the setting height of counterfort wall；
3, rainwater is avoided since present invention employs built-in anchor heads by the complete sealing of built-in anchor head inside shingle nail
Wash away erosion.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section of counterfort wall Yu prestressed anchor composite supporting construction.
Fig. 2 is the elevational schematic view of counterfort wall Yu prestressed anchor composite supporting construction.
Fig. 3 is the partial plan of counterfort wall Yu prestressed anchor composite supporting construction.
Fig. 4 is built-in anchor head detail of construction.
In figure: 1, prestressed anchor, 2, counterfort wall, 3, built-in anchor head, 4, shingle nail, 5, ground, 6, road under slope, 7, bottom
Plate, 8, road on slope, 9, rock slope, 10, anchoring section, 11, welding with filler wire, 12, billet.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
As shown in Figs 1-4, a kind of composite supporting construction widened for rock matter embankment, including bottom plate 7, shingle nail 4, counterfort
Wall 2 and prestressed anchor 1, the bottom plate 7 are set to the bottom of 11 side of welding with filler wire of rock matter embankment, the shingle nail
4 are set to the outside of rock matter embankment perpendicular to bottom plate 7, and the counterfort wall 2 is set to banketing for rock matter embankment perpendicular to bottom plate 7
It is in side slope 11 and vertical with shingle nail 4 simultaneously；The inner end of the prestressed anchor 1 is anchored in the rock slope 9 of rock matter embankment
In, outer end is connect with shingle nail 4 by built-in anchor head 3；The prestressed anchor 1 has multiple；The counterfort wall 2 has more
A, the length direction along rock matter embankment is arranged.
Further, the inner end of the prestressed anchor 1 is anchored in the rock side of Gao Yanzhi embankment by anchoring section 10
In slope 9, be placed in welding with filler wire 11 one section of prestressed anchor 1 is coated with anticorrosion material.
Further, the prestressed anchor 1 is installed on the middle position of two counterfort walls 2.
Further, the prestressed anchor 1 has multilayer, is provided in rock matter embankment from top to bottom.
A kind of construction method for the composite supporting construction widened for rock matter embankment, comprising the following steps:
Step 1: basement process is carried out according to the design position of counterfort wall 2 in 11 side of welding with filler wire of rock matter embankment.
Step 2: setting up the integral mold plate of counterfort wall 2, reserves the groove of design size in built-in 3 design position of anchor head,
And press 1 design direction reserving hole channel of prestressed anchor.
Step 3: the extending direction along reserving hole channel is marked in 9 corresponding position of rock slope.
Step 4: it is laid with reinforcement foundation, shingle nail reinforcing bar and counterfort wall reinforcing bar, near the design position of built-in anchor head 3
Increase reinforcing bar laying density.
Step 5: the one-piece casting of total is completed, and conserves the intensity for reaching design.
Step 6: banketing from bottom to top and is densified to 1 position of bottom prestressed anchor, bores in 9 mark position of rock slope
Prestressed anchor 1 and perfusion mortar, maintenance to design strength are placed in hole.
Step 7: disposing billet 12 in the reserved groove of counterfort wall 2,1 other end of prestressed anchor is passed through reserved
Shingle nail 4 and billet 12 are run through in duct, install built-in anchor head 3 and complete tensioning fastening.
Step 8: continuing to banket and be densified to the mark of one layer of armature boring, go to step six, until it is pre- to complete multilayer
The setting of stress anchor pole 1.
Step 9: benefit tensioning is carried out for prestressed anchor 1 from bottom to top, and where the built-in anchor head 3 of mortar floating
Reserved groove, formed protective layer, complete sealing off and covering anchorage.
Composite supporting construction in the present invention is set on the ground 5 of 11 side of welding with filler wire of rock matter embankment, is located at slope
On lower road 6 and slope between road 8, for widening road 8 on slope.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of composite supporting construction widened for rock matter embankment, it is characterised in that: including bottom plate (7), shingle nail (4), help
Wall wall (2) and prestressed anchor (1), the bottom plate (7) are set to the bottom of welding with filler wire (11) side of rock matter embankment, institute
The shingle nail (4) stated is set to the outside of rock matter embankment perpendicular to bottom plate (7), and the counterfort wall (2) is set perpendicular to bottom plate (7)
It is placed in the welding with filler wire (11) of rock matter embankment and vertical with shingle nail (4) simultaneously；The inner end of the prestressed anchor (1)
It is anchored in the rock slope (9) of rock matter embankment, outer end is connect with shingle nail (4) by built-in anchor head (3)；The prestressing force
Anchor pole (1) has multiple；The counterfort wall (2) have it is multiple, along rock matter embankment length direction arrange.
2. a kind of composite supporting construction widened for rock matter embankment according to claim 1, it is characterised in that: described
The inner end of prestressed anchor (1) is anchored in the rock slope (9) of Gao Yanzhi embankment by anchoring section (10), prestressed anchor
(1) one section be placed in welding with filler wire (11) is coated with anticorrosion material.
3. a kind of composite supporting construction widened for rock matter embankment according to claim 1, it is characterised in that: described
Prestressed anchor (1) is installed on the middle position of two counterfort walls (2).
4. a kind of composite supporting construction widened for rock matter embankment according to claim 1, it is characterised in that: described
Prestressed anchor (1) has multilayer, is provided in rock matter embankment from top to bottom.
5. a kind of construction method for the composite supporting construction widened for rock matter embankment, it is characterised in that: the following steps are included:
Step 1: basement process is carried out according to the design position of counterfort wall (2) in welding with filler wire (11) side of rock matter embankment；
Step 2: setting up the integral mold plate of counterfort wall (2), reserves the groove of design size in built-in anchor head (3) design position,
And press prestressed anchor (1) design direction reserving hole channel；
Step 3: the extending direction along reserving hole channel is marked in rock slope (9) corresponding position；
Step 4: being laid with reinforcement foundation, shingle nail reinforcing bar and counterfort wall reinforcing bar, increases near the design position of built-in anchor head (3)
Add reinforcing bar laying density；
Step 5: the one-piece casting of total is completed, and conserves the intensity for reaching design；
Step 6: banketing from bottom to top and is densified to bottom prestressed anchor (1) position, bores in rock slope (9) mark position
Prestressed anchor (1) and perfusion mortar, maintenance to design strength are placed in hole；
Step 7: disposing billet (12) in the reserved groove of counterfort wall (2), prestressed anchor (1) other end is passed through pre-
It boxes out through shingle nail (4) and billet (12), built-in anchor head (3) is installed and completes tensioning fastening；
Step 8: continuing to banket and be densified to the mark of one layer of armature boring, go to step six, until completing multilayer prestressing force
The setting of anchor pole (1)；
Step 9: benefit tensioning is carried out for prestressed anchor (1) from bottom to top, and is smoothed out at built-in anchor head (3) place with mortar
Reserved groove, formed protective layer, complete sealing off and covering anchorage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910305558.3A CN109914448A (en) | 2019-04-16 | 2019-04-16 | A kind of composite supporting construction widened for rock matter embankment and construction method |
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| CN201910305558.3A CN109914448A (en) | 2019-04-16 | 2019-04-16 | A kind of composite supporting construction widened for rock matter embankment and construction method |
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| CN109914448A true CN109914448A (en) | 2019-06-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924997A (en) * | 2019-12-09 | 2020-03-27 | 中铁十六局集团有限公司 | Tunnel secondary lining crack trimming and reinforcing method |
| CN111235991A (en) * | 2020-03-09 | 2020-06-05 | 中铁二院工程集团有限责任公司 | Rock steep slope road structure and construction method |
| CN111794268A (en) * | 2020-06-01 | 2020-10-20 | 中铁大桥科学研究院有限公司 | Composite retaining wall and construction method thereof |
| CN112921727A (en) * | 2021-01-28 | 2021-06-08 | 攀钢集团工程技术有限公司 | High and steep slope road widening construction method |
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| CN101838998A (en) * | 2010-04-27 | 2010-09-22 | 中国科学院武汉岩土力学研究所 | Prestressed anchor cable pile sliding wall along river road shoulder and construction method thereof |
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| CN104131502A (en) * | 2014-07-07 | 2014-11-05 | 广东盛瑞土建科技发展有限公司 | Construction method for widening road in rapid erection manner |
| CN105862858A (en) * | 2016-05-12 | 2016-08-17 | 大连交通大学 | Anchor head structure arranged in concrete slab for anchor retaining wall and construction method for anchor head structure |
| CN106522037A (en) * | 2016-12-26 | 2017-03-22 | 中铁第四勘察设计院集团有限公司 | Widening subgrade structure based on existing railway subgrade and construction method of widening subgrade structure |
| CN207987961U (en) * | 2018-03-26 | 2018-10-19 | 中冶沈勘工程技术有限公司 | A kind of rockmass high slope anchor pole and earth-retaining wall composite construction |
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2019
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| CN101838998A (en) * | 2010-04-27 | 2010-09-22 | 中国科学院武汉岩土力学研究所 | Prestressed anchor cable pile sliding wall along river road shoulder and construction method thereof |
| CN103469814A (en) * | 2013-09-24 | 2013-12-25 | 兰州理工大学 | Novel barricade supporting structure for road or river bank dam and construction method thereof |
| CN104131502A (en) * | 2014-07-07 | 2014-11-05 | 广东盛瑞土建科技发展有限公司 | Construction method for widening road in rapid erection manner |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924997A (en) * | 2019-12-09 | 2020-03-27 | 中铁十六局集团有限公司 | Tunnel secondary lining crack trimming and reinforcing method |
| CN111235991A (en) * | 2020-03-09 | 2020-06-05 | 中铁二院工程集团有限责任公司 | Rock steep slope road structure and construction method |
| CN111794268A (en) * | 2020-06-01 | 2020-10-20 | 中铁大桥科学研究院有限公司 | Composite retaining wall and construction method thereof |
| CN112921727A (en) * | 2021-01-28 | 2021-06-08 | 攀钢集团工程技术有限公司 | High and steep slope road widening construction method |
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Application publication date: 20190621 |
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| RJ01 | Rejection of invention patent application after publication |