CN217325539U - Diversion engineering building foundation reinforced structure - Google Patents
Diversion engineering building foundation reinforced structure Download PDFInfo
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- CN217325539U CN217325539U CN202121301740.0U CN202121301740U CN217325539U CN 217325539 U CN217325539 U CN 217325539U CN 202121301740 U CN202121301740 U CN 202121301740U CN 217325539 U CN217325539 U CN 217325539U
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- foundation
- retaining wall
- gravity retaining
- engineering building
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The utility model discloses a diversion engineering building foundation reinforcing structure, which comprises a backfill foundation and a gravity retaining wall positioned above the backfill foundation, wherein the gravity retaining wall inclines towards the side where the building is positioned, and a plurality of inclined drain holes are arranged on the wall body of the gravity retaining wall; the height of the gravity retaining wall is controlled within 3-5 m, the backfill foundation is formed by filling cement-doped stone slag materials, and the doping amount of cement is 50-70 kg/m 3 (ii) a The inner side of the top of the backfill foundation is provided with a reverse slope with a proper slope ratio as a retaining wall butt foundation; the micro-expansion C20 mixture is adopted within the proper height range of the top of the gravity retaining wallAnd (5) pouring concrete. The reinforcing scheme has the advantages of low construction difficulty and construction safety risk and relatively low investment, and can adapt to the reinforcement of a building foundation in a large-range collapse environment.
Description
Technical Field
The utility model relates to a water conservancy diversion engineering building foundation stabilization field, concretely relates to diversion engineering building foundation reinforced structure.
Background
Water conservancy diversion engineering needs to arrange additional buildings such as a regulation and storage pond, a pressure relief pond, a pump station and the like along the line because of functional requirements, is limited by the terrain conditions along the line, and part of building foundations are arranged on a steep terrain slope. Under the influence of rainfall and other natural factors, the safety of the building foundation is influenced by the conditions that part of the building foundation collapses and the like during operation, and reinforcement treatment is needed.
In general, a reinforcement scheme of building or pouring a retaining wall by slope attachment is adopted for a foundation on a slope, and the retaining wall foundation needs to be excavated to a stratum with the stability and the bearing capacity meeting the requirements. However, when the retaining wall is high, the conditions of self-stabilization requirement of the retaining wall and high requirement on the bearing capacity of the foundation exist, meanwhile, the high retaining wall is low in economy, and construction difficulty and safety risk are high. And the problem that due to the fact that the construction time is short, pre-sedimentation of the backfill part is not enough, sedimentation deformation occurs in the later period, and the operation safety of the building is influenced exists due to the adoption of the reinforcement scheme of the part backfill and the short retaining wall. Therefore, a measure of blending a small amount of cement into the backfill material is adopted to improve the integrity, the bearing capacity and the deformation modulus of the backfill foundation, reduce the influence of the sedimentation deformation on the retaining wall and the building, and simultaneously achieve the purposes of reducing the height of the retaining wall and saving the investment.
Based on the circumstances, the utility model provides a diversion engineering building foundation reinforced structure can effectively solve above problem.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves is: the scheme for reinforcing the foundation of the diversion engineering building is provided, and aims to adapt to the reinforcement of the foundation of the building under the environment of large-range collapse through the reinforcing scheme which is quick in construction, controllable in construction difficulty and construction risk and low in investment.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
the utility model provides a diversion engineering building foundation reinforced structure, includes backfill basis and is located the gravity barricade of backfill basis top, the slope of gravity barricade orientation building place side, and arrange a plurality of tilting wash ports on this gravity barricade wall body.
As an optimal technical scheme of the utility model, need dig into the step shape with the basis when backfilling the basis slope and than steeper than 1:5, the step size is height 0.3 ~ 0.5m, width 1 ~ 3m, and the step height should keep unanimous with the layered filling thickness.
As an optimal technical scheme of the utility model, the height of the gravity retaining wall is controlled within 3-5 m, the slope ratio of the inner vertical surface and the outer vertical surface of the gravity retaining wall is 1:0.25, the width of the top of the gravity retaining wall is 1.5-2.0 m, and the distance from the outer side of the gravity retaining wall to the side line of the building structure is proper.
As an optimal technical scheme of the utility model, the gravity barricade adopts C20 concrete placement shaping, and the space between the inboard and backfill basal plane of gravity barricade adopts the concrete to backfill.
As an optimized technical proposal of the utility model, the backfill foundation adopts the cement-doped stone slag material to fill and form, and the doping amount of the cement is 50-70 kg/m 3 。
As an optimized technical proposal of the utility model, the inner side of the top of the backfill foundation is provided with a reverse slope with a proper slope ratio as the foundation of the retaining wall butt.
As an optimized technical scheme of the utility model, gravity barricade bottom sets up the wall toe and enlarges the basis.
As an optimized technical proposal of the utility model, the gravity retaining wall top adopts the micro-expansion C20 concrete casting within the proper height range.
As a preferred technical solution of the present invention, the plurality of drainage holes are spaced at an appropriate distance, and the drainage holes are inclined at an appropriate angle.
As an optimized technical proposal of the utility model, the inner end of the drain hole is provided with the reverse filter bag.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model relates to a diversion engineering building foundation reinforcement scheme, this kind of reinforcement scheme construction degree of difficulty and construction safety risk are less, the investment also saves relatively, can adapt to the reinforcement of building foundation under the environment that collapses in the great range.
Drawings
Fig. 1 is a diversion engineering building foundation reinforcement scheme sectional view of the utility model.
Reference numerals: 1-backfilling a foundation; 2-gravity retaining wall; 3, a drain hole; 4-micro-expansive C20 concrete; 5-wall heel; 6-expanded wall toe foundation; 7-reverse filtration package.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The present invention will be further described with reference to the accompanying fig. 1 and the following examples, which are not intended as a limitation of the present invention.
As shown in fig. 1, a diversion engineering building foundation reinforcement scheme comprises the following structural parts: backfilling foundation 1, gravity retaining wall 2 and drain hole 3.
The method comprises the steps of excavating a loose covering layer on the surface layer of a foundation before the construction of a backfill foundation 1, excavating the backfill foundation 1 into a step shape when the slope ratio of the backfill foundation 1 is steeper than 1:5, wherein the step size is 0.3-0.5 m in height and 1-3 m in width, and the step height is preferably consistent with the layered filling thickness, so that the slip resistance of the backfill foundation 1 is improved.
The height of the upper inclined gravity retaining wall 2 is controlled within 3-5 m, the slope ratio of the inner vertical surface to the outer vertical surface of the gravity retaining wall 2 is 1:0.25, the top width of the gravity retaining wall 2 is 1.5-2.0 m, the distance between the outer side of the gravity retaining wall 2 and the side line of the building structure is 1m, the gravity retaining wall 2 is cast by C20 concrete, and the gap between the inner side of the gravity retaining wall 2 and the surface of the backfill foundation 1 is backfilled by concrete.
Further, in order to improve the deformation modulus, the bearing capacity and the compactness of the backfill foundation 1 and reduce the later-stage settlement deformation, a certain amount of cement (50-70 kg/m) is mixed into the stone slag material 3 ). 1:1.5 of the side slope at the outer side of the backfill foundation 1, 2m of the top width, and 1:5 of the reverse slope arranged at the inner side of the top as the foundation of the retaining wall heel 5 so as to improve the anti-overturning capability of the gravity retaining wall 2.
Specifically, the bottom of the gravity retaining wall 2 is provided with a toe expanding foundation 6, so that the toe expanding foundation adapts to a backfill foundation 1 to control later-stage settlement deformation on one hand, the anti-overturning capacity of the retaining wall can be improved on the other hand, and the toe expanding foundation 6 is 1m in bottom width and 1m in height.
Further, in order to enhance the compactness of the contact part between the top of the gravity retaining wall 2 and the bottom of the building, micro-expansion C20 concrete is cast within the height range of 0.5m of the top of the gravity retaining wall 2.
Specifically, a system drain hole 3 is arranged on the wall body of the gravity retaining wall 2, the size of the drain hole 3 is phi 100, the distance between the drain holes is 1.5m, the row spacing is 1.5m, the drain hole 3 is declined by 5 degrees, and a reverse filter bag 7 is arranged at the inner end of the drain hole 3.
The scheme for reinforcing the foundation of the diversion engineering building can be specifically realized by adopting the following method:
(1) before reinforcement, the building needs to be reinforced temporarily, so that safety risks such as collapse again during reinforcement construction are avoided.
(2) Determining parameters such as dosage of stone slag mixed with cement, water mixing amount, layered filling thickness and the like through a rolling test
(3) Loose floating soil and an inverted suspension body on the foundation on the inner side of the gravity retaining wall 2 are cleaned, and the slope ratio of the foundation is trimmed to be about 1: 0.25.
(4) And (3) digging a loose covering layer on the surface of the backfill foundation 1, when the slope ratio of the foundation after finishing is steeper than 1:5, digging the backfill foundation 1 into a step shape, wherein the step size is 0.3-0.5 m in height and 1-3 m in width, and the step height is preferably consistent with the layered filling thickness.
(5) And carrying out backfill construction according to the rolling test result, and controlling the inner slope ratio, the outer slope ratio and the top width in the construction.
(6) And after the backfilling construction is finished, performing upper retaining wall construction after 7-10 days so as to consolidate the stone ballast and the cement, wherein the integrity, the bearing capacity and the deformation modulus of the foundation can be strengthened to a certain degree.
(7) And (3) constructing an upper C20 concrete retaining wall, constructing the drain hole 3 by adopting a PVC pipe embedded in the vertical formwork, and stopping construction when the gravity retaining wall 2 is poured to a position 0.5m away from the top.
(8) After the concrete of the lower gravity retaining wall 2 is finally set, the slightly expanded C20 concrete is used for pouring the gravity retaining wall 2 within the height range of 0.5 m.
According to the utility model discloses a description and attached drawing, the technical personnel in the field make or use very easily the utility model discloses a diversion engineering building foundation reinforced structure to can produce the positive effect that the utility model discloses record.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention in any form, and all the technical matters of the present invention are all within the protection scope of the present invention for any simple modification and equivalent change of the above embodiments.
Claims (7)
1. The utility model provides a diversion engineering building foundation reinforced structure which characterized in that: the gravity retaining wall is inclined towards the side where a building is located, and a plurality of inclined drain holes are formed in the wall body of the gravity retaining wall; the height of the gravity retaining wall is controlled within 3-5 m, the backfill foundation is formed by filling cement-doped stone slag materials, and the doping amount of cement is 50-70 kg/m 3 (ii) a The inner side of the top of the backfill foundation is provided with a reverse slope with a proper slope ratio as a retaining wall butt foundation; and micro-expansion C20 concrete is poured within a proper height range at the top of the gravity retaining wall.
2. The diversion engineering building foundation reinforcing structure of claim 1, wherein: when the slope ratio of the backfilled foundation is steeper than 1:5, the foundation needs to be dug into a step shape, the step size is 0.3-0.5 m in height and 1-3 m in width, and the step height is preferably consistent with the layered filling thickness.
3. The diversion engineering building foundation reinforcing structure of claim 1, wherein: the slope ratio of the inner vertical surface to the outer vertical surface of the gravity retaining wall is 1:0.25, the top width of the gravity retaining wall is 1.5-2.0 m, and the distance from the outer side of the gravity retaining wall to the side line of the building structure is proper.
4. The diversion engineering building foundation reinforcing structure of claim 1, wherein: the gravity retaining wall is formed by pouring C20 concrete, and a gap between the inner side of the gravity retaining wall and a backfilling foundation surface is backfilled by concrete.
5. The diversion engineering building foundation reinforcing structure of claim 1, wherein: and the bottom of the gravity retaining wall is provided with a wall toe expanding foundation.
6. The diversion engineering building foundation reinforcing structure of claim 1, wherein: the plurality of drain holes are spaced at a proper distance, and the drain holes are declined at a proper angle.
7. The diversion engineering building foundation reinforcing structure of claim 1, wherein: the inner end of the drain hole is provided with a reverse filter bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121301740.0U CN217325539U (en) | 2021-06-10 | 2021-06-10 | Diversion engineering building foundation reinforced structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121301740.0U CN217325539U (en) | 2021-06-10 | 2021-06-10 | Diversion engineering building foundation reinforced structure |
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| Publication Number | Publication Date |
|---|---|
| CN217325539U true CN217325539U (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121301740.0U Active CN217325539U (en) | 2021-06-10 | 2021-06-10 | Diversion engineering building foundation reinforced structure |
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| CN (1) | CN217325539U (en) |
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2021
- 2021-06-10 CN CN202121301740.0U patent/CN217325539U/en active Active
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