CN102518147A - Anchoring and retaining structure for reducing support height of existing overhigh retaining wall - Google Patents
Anchoring and retaining structure for reducing support height of existing overhigh retaining wall Download PDFInfo
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- CN102518147A CN102518147A CN2011103863042A CN201110386304A CN102518147A CN 102518147 A CN102518147 A CN 102518147A CN 2011103863042 A CN2011103863042 A CN 2011103863042A CN 201110386304 A CN201110386304 A CN 201110386304A CN 102518147 A CN102518147 A CN 102518147A
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- retaining wall
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- overhigh
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Abstract
The invention discloses an anchoring and retaining structure for reducing support height of existing overhigh retaining wall. A counterforted retaining wall (1) adhered to the root portion of an overhigh gravity retaining wall (5) is arranged at the root portion, one end of the bottom of the counterforted retaining wall (1) close to the overhigh gravity retaining wall (5) is connected with a prestressed anchor rod (2) applying inclined downward pressure to the counterforted retaining wall (1) towards one side of the overhigh gravity retaining wall (5), and one end of the bottom of the counterforted retaining wall (1)away from the overhigh gravity retaining wall (5) is connected with a reinforced concrete pile (3) applying upward support force to the counterforted retaining wall (1) through a hinge (4). The anchoring and retaining structure for reducing the support height of the existing overhigh retaining wall is small occupied area and used for reducing the support height of the existing overhigh retaining wall.
Description
Technical field
The present invention relates to a kind of retaining structure, particularly relate to a kind of anchoring retaining structure that is used to reduce existing too high retaining wall supporting height.
Background technology
China's " building slope engineering rules " GB 50330-2002 highly has some regulations to suitable retaining of various retaining structures; This be because; If it is highly too much that a retaining of retaining structure highly surpasses its suitable retaining, it produces the probability that destroys will be much bigger.For example this standard 3.4.4 table is thought for slight slope, and suitable retaining of gravity retaining wall highly is 8m.But because economic cause, past, often to highly also having adopted gravity retaining wall to prop up retaining greater than the slight slope of 8m, gravity retaining wall was that cost is relatively low after all.The gravity retaining wall retaining structure exceeds the important source that its suitable retaining become the urban geology disaster highly too much.
In order to eliminate the potential safety hazard of too high retaining wall, often be employed in the mode of banketing before the wall and reduce retaining wall and prop up retaining height, for example if the high 13m of wall, charting 5m before wall then, after banketing like this, a retaining of retaining wall highly has been reduced to 8 meters, and retaining wall is just safely like this.The effect of banketing before the wall is exactly: when too high barricade was not moved, the generation earth pressue at rest that bankets was resisted existing too high retaining wall and is produced overturning or slip resistance analysis moment and horizontal thrust, stops too high retaining wall to produce and topples and sliding rupture; When too high barricade was moved, the generation passive earth pressure that bankets was resisted existing too high retaining wall and is produced overturning or slip resistance analysis moment and horizontal thrust, stops too high retaining wall to produce and topples and sliding rupture.
Be employed in 6 the mode of banketing before the wall more in the engineering and reduce too high retaining wall retaining structure height, as shown in Figure 1.The major defect of before wall, banketing is exactly the soil that need take certain width, and this to be urban development be difficult to accept.
Summary of the invention
Technical problem to be solved by this invention provides a kind of anchoring retaining structure that existing too high retaining wall retaining structure height and little being used to of land occupation area reduce existing too high retaining wall supporting height that reduces.
In order to solve the problems of the technologies described above; The anchoring retaining structure that is used to reduce existing too high retaining wall supporting height provided by the invention; The root of too high gravity retaining wall be provided with one be close to it hold up arm-type wall; The end that described too high gravity retaining wall is closed in the described bottom of holding up arm-type wall is connected with to described holds up arm-type wall to apply the prestressed anchor to described too high gravity retaining wall one skew back downward pressure, and the described bottom of holding up arm-type wall is adopted to be hinged away from an end of described too high gravity retaining wall and is connected to the reinforced concrete pile of holding up arm-type wall to apply support force upwards to described.
Described hinge is to insert the longitudinal bar of described reinforced concrete pile after 3 intersections.
Adopt the anchoring retaining structure that is used to reduce existing too high retaining wall supporting height of technique scheme, because the prestressed anchor pole pair holds up the overturning or slip resistance analysis moment of the generation of banketing before moment M that downward component and the reinforced concrete pile of the pressure N of arm-type wall form two power of support force P of holding up arm-type wall and the wall equivalent; Reinforced concrete pile stake and hold up hinge between the arm-type foundation of wall can guarantee to hold up the minor rotation that arm-type wall can produce to be needed guarantees that moment M can effectively be applied on the existing too high gravity retaining wall.The prestressed anchor pole pair is held up the horizontal component of the pressure N of arm-type wall to add and is cut with scissors the horizontal thrust of transmitting the reinforced concrete pile that comes, can be equivalent with the horizontal force of the generation of before wall, banketing.
Above measure can guarantee that retaining structure of the present invention can be equivalent with the effect of banketing before the wall, plays and reduces the effect that existing too high gravity retaining wall props up the retaining height.
The present invention be exactly through adopt the arm-type wall system of prestressed anchor+reinforced concrete pile+cut with scissors+hold up produce with wall before the banket mechanics effect of equivalence; Play and reduce existing too high retaining wall retaining structure height and the little purpose of land occupation area; Make its retaining highly meet " building slope engineering rules " GB 50330-2002 requirement, eliminate safe hidden trouble.
In sum, the present invention is a kind of anchoring retaining structure that existing too high retaining wall retaining structure height and little being used to of land occupation area reduce existing too high retaining wall supporting height that reduces.
Description of drawings
Fig. 1 is the anchoring retaining structure sketch map of existing too high retaining wall supporting height.
Fig. 2 is the anchoring retaining structure sketch map that is used to reduce existing too high retaining wall supporting height of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described further.
Referring to Fig. 2; The root of too high gravity retaining wall 5 be provided with one be close to it hold up arm-type wall 1; An end of holding up the bottom of arm-type wall 1 to close on too high gravity retaining wall 5 is connected with to holding up arm-type wall 1 to apply the prestressed anchor 2 to too high gravity retaining wall 5 one skew back downward pressures; The bottom of holding up arm-type wall 1 adopts hinge 4 to be connected with to holding up arm-type wall 1 to apply the reinforced concrete pile 3 of support force upwards away from an end of too high gravity retaining wall 5, and hinge 4 is to insert the longitudinal bar of reinforced concrete pile 3 after 3 intersections.
Referring to Fig. 2,2 pairs of prestressed anchors hold up the 6 overturning or slip resistance analysis moments that produce of banketing before downward component and moment M that two power of support force P that 3 pairs of reinforced concrete piles are held up arm-type wall form and the wall of pressure N of arm-type wall 1 equivalent; 3 of reinforced concrete piles and hold up hinge 4 between arm-type wall 1 basis can guarantee to hold up the minor rotation that arm-type wall 1 can produce to be needed guarantee that moment M can effectively be applied on the existing too high gravity retaining wall 5; 2 pairs of prestressed anchors hold up the horizontal component of the pressure N of arm-type wall 1 to add the horizontal thrust of the reinforced concrete pile that hinge 4 is transmitted, can with the horizontal force equivalence of before wall, banketing and producing.
Above measure can guarantee retaining structure of the present invention can with the 6 effect equivalences of banketing before the wall, play the effects that reduce by 5 retaining height of existing too high gravity retaining wall.
Produce with wall before the banket key technology of mechanics effect of equivalence be rationally to confirm angle, the prestressing force N of prestressed anchor 2
pAnd design uplift resistance Nu size.The present invention confirms this 3 parameters by following principle:
1, the prestressing force N of prestressed anchor 2
pDefinite method of size:
1) banket before basis and the wall principle of the moment equivalence that 6 earth pressue at rests produce is confirmed the prestressing force N of prestressed anchor 2
pVertical force component N
PvSize;
2), confirm the prestressing force N of prestressed anchor 2 according to the equivalent principle of horizontal moment of the 6 earth pressue at rests generation of banketing before the wall
pHorizontal component N
PhSize;
3) according to horizontal component N
PhWith vertical force component N
PvSize calculate the prestress value N of prestressed anchor 2
p
2, horizontal component N
PhWith vertical force component N
PvRatio confirm the angle θ of prestressed anchor 2.
3, banket before basis and the wall principle of the moment equivalence that 6 passive earth pressures produce is confirmed the size of the design uplift resistance Nu vertical force component of prestressed anchor 2.
Claims (2)
1. one kind is used to reduce the anchoring retaining structure that has too high retaining wall supporting height now; It is characterized in that: the root of too high gravity retaining wall (5) be provided with one be close to it hold up arm-type wall (1); The end that described too high gravity retaining wall (5) is closed in the described bottom of holding up arm-type wall (1) is connected with to the described arm-type wall (1) of holding up and applies the prestressed anchor (2) to described too high gravity retaining wall (5) one skew back downward pressures, and the described bottom of holding up arm-type wall (1) adopts hinge (4) to be connected with the reinforced concrete pile (3) of holding up arm-type wall (1) to apply support force upwards to described away from an end of described too high gravity retaining wall (5).
2. the anchoring retaining structure that is used to reduce existing too high retaining wall supporting height according to claim 1 is characterized in that: described hinge (4) is to insert the longitudinal bar of described reinforced concrete pile (3) after 3 intersections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110386304 CN102518147B (en) | 2011-11-28 | 2011-11-28 | Anchoring and retaining structure for reducing support height of existing overhigh retaining wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110386304 CN102518147B (en) | 2011-11-28 | 2011-11-28 | Anchoring and retaining structure for reducing support height of existing overhigh retaining wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102518147A true CN102518147A (en) | 2012-06-27 |
| CN102518147B CN102518147B (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110386304 Expired - Fee Related CN102518147B (en) | 2011-11-28 | 2011-11-28 | Anchoring and retaining structure for reducing support height of existing overhigh retaining wall |
Country Status (1)
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| CN (1) | CN102518147B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352477A (en) * | 2013-07-12 | 2013-10-16 | 青岛理工大学 | Vertical pres-stressed anchor rod gravity-type composite retaining wall and method for designing and constructing retaining wall |
| CN110284518A (en) * | 2019-07-17 | 2019-09-27 | 上海勘测设计研究院有限公司 | A kind of tilting empty van barricade |
| CN111235992A (en) * | 2020-03-17 | 2020-06-05 | 中铁二院工程集团有限责任公司 | Slope soft soil foundation cantilever retaining wall reinforcing structure and construction method |
| CN113431083A (en) * | 2021-06-10 | 2021-09-24 | 中南勘察设计院集团有限公司 | Light supporting structure of pile foundation joist and construction method thereof |
Citations (7)
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| CN2197388Y (en) * | 1994-05-10 | 1995-05-17 | 彭高培 | T-shape retaining wall |
| CN1235227A (en) * | 1999-02-02 | 1999-11-17 | 重庆市设计院 | Retaining wall for foundation construction |
| JP2983471B2 (en) * | 1996-08-19 | 1999-11-29 | 大林道路株式会社 | How to build a retaining wall |
| JP2008150947A (en) * | 2003-02-05 | 2008-07-03 | Ohbayashi Corp | Wall structure in which permanent anchor is executed, and construction method of wall structure in which permanent anchor is executed |
| 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 |
| CN201915422U (en) * | 2011-02-09 | 2011-08-03 | 云南建工水利水电建设有限公司 | Counterfort retaining wall on high slope |
| CN102251525A (en) * | 2011-04-12 | 2011-11-23 | 兰州理工大学 | Framework prestress anchor rod-reinforced supporting structure for gravity type retaining wall and construction method thereof |
-
2011
- 2011-11-28 CN CN 201110386304 patent/CN102518147B/en not_active Expired - Fee Related
Patent Citations (7)
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|---|---|---|---|---|
| CN2197388Y (en) * | 1994-05-10 | 1995-05-17 | 彭高培 | T-shape retaining wall |
| JP2983471B2 (en) * | 1996-08-19 | 1999-11-29 | 大林道路株式会社 | How to build a retaining wall |
| CN1235227A (en) * | 1999-02-02 | 1999-11-17 | 重庆市设计院 | Retaining wall for foundation construction |
| JP2008150947A (en) * | 2003-02-05 | 2008-07-03 | Ohbayashi Corp | Wall structure in which permanent anchor is executed, and construction method of wall structure in which permanent anchor is executed |
| 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 |
| CN201915422U (en) * | 2011-02-09 | 2011-08-03 | 云南建工水利水电建设有限公司 | Counterfort retaining wall on high slope |
| CN102251525A (en) * | 2011-04-12 | 2011-11-23 | 兰州理工大学 | Framework prestress anchor rod-reinforced supporting structure for gravity type retaining wall and construction method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 马全珍等: "失稳重力式挡土墙加固方法的探讨与应用", 《山西建筑》, vol. 37, no. 12, 20 April 2011 (2011-04-20), pages 71 - 72 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352477A (en) * | 2013-07-12 | 2013-10-16 | 青岛理工大学 | Vertical pres-stressed anchor rod gravity-type composite retaining wall and method for designing and constructing retaining wall |
| CN110284518A (en) * | 2019-07-17 | 2019-09-27 | 上海勘测设计研究院有限公司 | A kind of tilting empty van barricade |
| CN111235992A (en) * | 2020-03-17 | 2020-06-05 | 中铁二院工程集团有限责任公司 | Slope soft soil foundation cantilever retaining wall reinforcing structure and construction method |
| CN111235992B (en) * | 2020-03-17 | 2024-05-31 | 中铁二院工程集团有限责任公司 | Slope soft soil foundation cantilever retaining wall reinforcing structure and construction method |
| CN113431083A (en) * | 2021-06-10 | 2021-09-24 | 中南勘察设计院集团有限公司 | Light supporting structure of pile foundation joist and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102518147B (en) | 2013-12-25 |
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