CN112627204A - Reinforcing structure of unstable side slope and construction method thereof - Google Patents
Reinforcing structure of unstable side slope and construction method thereof Download PDFInfo
- Publication number
- CN112627204A CN112627204A CN202011577622.2A CN202011577622A CN112627204A CN 112627204 A CN112627204 A CN 112627204A CN 202011577622 A CN202011577622 A CN 202011577622A CN 112627204 A CN112627204 A CN 112627204A
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- 238000010276 construction Methods 0.000 title claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 title claims description 9
- 239000004567 concrete Substances 0.000 claims abstract description 64
- 238000011065 in-situ storage Methods 0.000 claims description 17
- 239000002689 soil Substances 0.000 claims description 14
- 241000196324 Embryophyta Species 0.000 claims description 10
- 239000011469 building brick Substances 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 239000003864 humus Substances 0.000 claims description 3
- 230000004083 survival effect Effects 0.000 claims description 3
- 244000025254 Cannabis sativa Species 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000011449 brick Substances 0.000 claims 2
- 238000004891 communication Methods 0.000 claims 1
- 238000005266 casting Methods 0.000 description 6
- 230000001066 destructive effect Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000008635 plant growth Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a reinforced structure of an unstable side slope and a construction method thereof, and the reinforced structure comprises an underground continuous wall arranged at the toe of the slope, a cast-in-place concrete arch supported on the continuous wall, a slope cast-in-place concrete longitudinal beam supported on the cast-in-place concrete arch, a light bricking arch-shaped cross beam built between the slope cast-in-place concrete longitudinal beams, vegetation planted in a sash between the slope cast-in-place concrete longitudinal beam and the light bricking arch-shaped cross beam, the slope cast-in-place concrete longitudinal beams are connected together at the top of the slope through a top connecting beam, a catch basin is built at one side of the top connecting beam far away from the side slope, and an anchor rod is arranged on the slope cast-in-place concrete longitudinal beam according. The invention adopts engineering measures and plant measures to fix the slope together, utilizes the underground continuous wall to provide resistance and resist the gliding force transmitted by the load of the slope surface, improves the structural reliability and durability, has convenient and rapid construction, short construction period and investment saving, ensures the stability of the slope and protects the ecological environment.
Description
Technical Field
The invention relates to a slope reinforcement technology, in particular to a reinforcement structure of an unstable slope and a construction method thereof.
Background
In engineering construction, the slope is reinforced in order to prevent the instability of the slope and limit the weathering spalling or damage of slope rock-soil bodies. The traditional anchor rod (anchor cable) + sash beam structure combines two structures of a reinforced concrete frame and a prestressed anchor rod (anchor cable), and a slope body and an internal stable stratum are connected together through the anchor rod (anchor cable) and the sash beam to bear force. The structure only stabilizes the side slope by the resistance force which is provided by the anchor rods (anchor cables) and is opposite to the side slope destructive force, and the side slope has the possibility of being separated from the slope surface along with the rain wash and the water inflow infiltration, so that the stability and the durability of the side slope are poor. In addition, the traditional scheme has the advantages of multiple construction procedures, high construction difficulty, long construction period and high investment.
Along with the technical development and the increasing environmental requirements of people, the requirements and the application of the ecological environment-friendly slope reinforcement structure which can ensure the stability of the slope and fully protect the environment are more and more extensive in production and life.
Disclosure of Invention
The invention aims to solve the technical problem of providing a reinforcing structure of an unstable side slope and a construction method thereof, which improve the stress state of the traditional anchor rod (anchor cable) and sash beam structure, improve the structural reliability and the use durability, shorten the construction time, fully utilize plants to fix the slope, not only can safely and permanently stabilize the side slope, but also can beautify the environment and improve the ornamental value.
In order to solve the problems, the technical scheme adopted by the invention is as follows: the utility model provides a reinforced structure of unstable side slope, including setting up the underground continuous wall at the toe of a slope, support the cast-in-place concrete arch on the continuous wall, support the domatic cast-in-place concrete longeron on the cast-in-place concrete arch, set up the light-duty arch crossbeam of building bricks between the domatic cast-in-place concrete longeron, plant the vegetation in the sash between domatic cast-in-place concrete longeron and the light-duty arch crossbeam of building bricks, domatic cast-in-place concrete longeron links together at the top of a slope position through the top of a slope tie roof tie beam, keep away from side slope one side at the top of a slope and construct the catch basin, be provided with the.
The anchor rod is selected according to calculation requirements, and the tail end of the anchor rod extends into the position below a sliding surface of a side slope; the anchor rod drilling position is the intersection of the slope cast-in-place concrete longitudinal beam and the light bricklaying arched beam.
The underground continuous wall adopts in-situ construction, disturbance to a slope toe is avoided, the interval between the walls of the underground continuous wall is more than or equal to 3m, and the wall height is more than or equal to 1.5 m.
The two side walls of the underground continuous wall are obliquely arranged in the same force transmission direction of the cast-in-place concrete arch, the middle wall is longitudinally arranged in the same direction of the slope cast-in-place concrete longitudinal beam.
The slope cast-in-place concrete longitudinal beam is supported at the vault of the cast-in-place concrete arch, and the rise-span ratio of the cast-in-place concrete arch is not more than 1/5.
The transverse distance between the slope cast-in-place concrete longitudinal beams is equal to the distance between the underground continuous wall walls, and the width and the thickness of the slope cast-in-place concrete longitudinal beams are more than or equal to 0.4 m.
The slope top connecting beam is cast-in-place concrete, the head end and the tail end of the slope top connecting beam are intersected with the outermost cast-in-place concrete longitudinal beam, and the width and the thickness of the slope top connecting beam are both more than or equal to 0.4 m.
The light bricklaying arched beam is light bricklaying for building, the compressive strength is not less than 10MPa, the arch structure vector-span ratio is not more than 1/5, and the distance between two upper and lower adjacent light bricklaying arched beams on a plane is not less than 3.0 m.
The vegetation is made of shrubs and/or shrubs with developed root systems which are suitable for local survival, and if soil quality at a certain part of a side slope is not suitable for slope fixing plant growth, planting soil or humus soil is filled.
The construction method of the reinforced structure of the unstable side slope comprises the steps of firstly constructing the underground continuous wall at the slope toe by adopting an in-situ construction mode, when the strength of the wall body reaches more than 85% of the design strength, casting a concrete arch in situ, casting slope roof connecting beams at the middle part of the concrete arch in situ, connecting the slope roof connecting beams together, adopting light building brick arched beams of building blocks for building arched sashes between the two slope roof casting concrete longitudinal beams, planting slope plants between the sashes, fixing soil, protecting slope, arranging anchor rods according to needs, and finally constructing a catch basin at the slope roof, wherein the whole construction is completed.
The invention has the beneficial effects that: the ecological friendly unstable slope reinforcing structure adopts engineering measures and plant measures to jointly fix the slope, changes the stress state of the traditional anchor rod (anchor cable) and sash beam structure into the stress state of utilizing the underground continuous wall to provide resistance and resist the gliding force transmitted by the slope load, and improves the structural reliability and durability. Meanwhile, the advantages of strong adaptability of the light building blocks and capability of fixing soil and greening among the building blocks are utilized, the construction is convenient and rapid, the construction period is short, the investment is saved, the stability of the side slope is ensured, and the ecological environment is protected.
Drawings
Fig. 1 is a plan view of a reinforcing structure for an unstable slope of the present invention.
Fig. 2 is a cross-sectional view of a reinforcing structure of an unstable slope of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
as shown in figure 1, the reinforced structure of the unstable slope comprises an underground continuous wall 3 arranged at the toe of the slope, a cast-in-place concrete arch 4 supported on the continuous wall 3, slope cast-in-place concrete longitudinal beams 5 supported on the cast-in-place concrete arch 4, light bricking arch-shaped cross beams 7 built between the slope cast-in-place concrete longitudinal beams 5, vegetation 8 planted in a lattice between the slope cast-in-place concrete longitudinal beams 5 and the light bricking arch-shaped cross beams 7, the slope cast-in-place concrete longitudinal beams 5 are connected together at the top of the slope through slope top connecting beams 6, a cut-off ditch 1 is built on one side of the slope top connecting beams 6 far away from the slope, and anchor rods 2 are arranged on the slope cast-in-place concrete longitudinal beams 5 according to the slope stability.
Preferably, the anchor rod 2 is selected according to calculation requirements, and the tail end of the anchor rod extends into the position below a slope sliding surface; the drilling position of the anchor rod 2 is the intersection of the slope cast-in-place concrete longitudinal beam 5 and the light bricklaying arched beam 7. The underground continuous wall 3 is constructed in situ, so that the disturbance to the slope toe is avoided, the interval between the walls of the underground continuous wall 3 is more than or equal to 3m, and the wall height is more than or equal to 1.5 m. The two side walls of the underground continuous wall 3 are obliquely arranged in the same force transmission direction of the cast-in-place concrete arch 4, the middle wall is longitudinally arranged in the same direction of the slope cast-in-place concrete longitudinal beam 5. The slope cast-in-place concrete longitudinal beam 5 is supported at the vault of the cast-in-place concrete arch 4, and the rise-span ratio of the cast-in-place concrete arch 4 is not more than 1/5. The transverse distance between the slope cast-in-place concrete longitudinal beams 5 is equal to the distance between the underground continuous wall 3 walls, and the width and the thickness are both more than or equal to 0.4 m. The slope top connecting beam 6 is cast-in-place concrete, the head end and the tail end of the slope top connecting beam are intersected with the outermost cast-in-place concrete longitudinal beam 5, and the width and the thickness of the slope top connecting beam are both more than or equal to 0.4 m. The light bricklaying arched crossbeam 7 is light bricklaying for building, the compressive strength is not less than 10MPa, the arch structure vector-span ratio is not more than 1/5, and the distance between two upper and lower adjacent light bricklaying arched crossbeams on the plane is not less than 3.0 m.
The vegetation 8 adopts irrigated grass and/or shrubs with developed root systems which are suitable for local survival, and if soil quality at a certain part of a side slope is not suitable for slope fixing plant growth, planting soil or humus soil is filled.
The construction method of the reinforced structure of the unstable side slope comprises the steps of firstly constructing the underground continuous wall at the slope toe by adopting an in-situ construction mode, when the strength of the wall body reaches more than 85% of the design strength, casting a concrete arch in situ, casting slope roof connecting beams at the middle part of the concrete arch in situ, connecting the slope roof connecting beams together, adopting light building brick arched beams of building blocks for building arched sashes between the two slope roof casting concrete longitudinal beams, planting slope plants between the sashes, fixing soil, protecting slope, arranging anchor rods according to needs, and finally constructing a catch basin at the slope roof, wherein the whole construction is completed.
The invention reduces the erosion of rainwater to the slope surface and rainwater infiltration by using the slope top intercepting drain; light brickwork is used for replacing sash cross beams, slope top beams and underground continuous walls are connected through slope longitudinal beams, and the underground continuous walls are used for providing resistance force in the direction opposite to the slope destructive force; the stability of the side slope is further enhanced by using anchor rods (or anchor cables); local plants are planted by utilizing the soil fixing function among the frames, so that the slope is fixed by the plants, and the environment is protected and beautified.
The above examples are only for illustrating the technical ideas and features of the present invention, and are not to be construed as limiting the scope of the present invention, i.e., all equivalent changes or modifications of the structure, shape and principle disclosed in the present invention are within the scope of the present invention.
Claims (10)
1. The utility model provides a reinforced structure of unstable side slope, a serial communication port, including setting up underground continuous wall (3) at the toe of a slope, support cast in situ concrete arch (4) on continuous wall (3), support domatic cast in situ concrete longeron (5) on cast in situ concrete arch (4), set up light-duty arch crossbeam (7) of building bricks by laying bricks or stones between domatic cast in situ concrete longeron (5), plant vegetation (8) in the sash between domatic cast in situ concrete longeron (5) and light-duty arch crossbeam (7) of building bricks or stones, domatic cast in situ concrete longeron (5) link together in the top of a slope position through top of a slope tie beam (6), keep away from one side building catch basin (1) in top of a slope tie beam (6), be provided with stock (2) on domatic cast in situ concrete longeron (5) according to the side slope stable condition.
2. The reinforcement structure for unstable slopes according to claim 1, wherein the anchor rods (2) are selected according to calculation requirements, and the tail ends of the anchor rods penetrate into the position below the slope sliding surface; the drilling position of the anchor rod (2) is the intersection of the slope cast-in-place concrete longitudinal beam (5) and the light bricklaying arched beam (7).
3. The reinforced structure of the unstable slope according to claim 1, wherein the underground continuous walls (3) are constructed in situ to avoid disturbance to the slope toe, the spacing between the underground continuous walls (3) is more than or equal to 3m, and the wall height is more than or equal to 1.5 m.
4. The reinforced structure of unstable side slope according to claim 3, characterized in that, the underground continuous wall (3) is arranged with two side walls in slant direction, the direction is the same as the force transmission direction of the cast-in-place concrete arch (4), the middle wall is arranged longitudinally, and the direction is the same as the direction of the slope cast-in-place concrete longitudinal beam (5).
5. The unstable slope reinforcement structure according to claim 1, wherein the slope cast-in-place concrete longitudinal beams (5) are supported on the arch crown of the cast-in-place concrete arch (4), and the rise-to-span ratio of the cast-in-place concrete arch (4) is not more than 1/5.
6. The reinforcing structure of the unstable side slope according to claim 1 or 5, wherein the transverse spacing of the slope cast-in-place concrete longitudinal beams (5) is equal to the spacing between the walls of the underground continuous wall (3), and the width and the thickness of the slope cast-in-place concrete longitudinal beams are more than or equal to 0.4 m.
7. The reinforcing structure of the unstable side slope according to claim 1, wherein the top connecting beam (6) is cast-in-place concrete, the head end and the tail end of the top connecting beam intersect with the outermost cast-in-place concrete longitudinal beam (5), and the width and the thickness of the top connecting beam are both more than or equal to 0.4 m.
8. The reinforcing structure for unstable slopes of claim 1, wherein the light-laid arched beams (7) are light-laid bricks for construction, the compressive strength is not less than 10MPa, the arch-shaped structure aspect ratio is not more than 1/5, and the distance between two adjacent light-laid arched beams above and below the plane is not less than 3.0 m.
9. The reinforcement structure for unstable slopes of claim 1, wherein the vegetation (8) is selected from irrigated grass and/or shrubs with developed roots, which are suitable for local survival, and planted soil or humus is replaced if the soil quality of the slope is not suitable for the plants to be fixed on the slope.
10. The method for constructing a reinforced structure of an unstable side slope according to any one of claims 1 to 9, wherein the underground continuous wall is firstly constructed at the slope toe by an in-situ construction method, when the strength of the wall body reaches more than 85% of the design strength, a concrete arch is cast in place, longitudinal slope beams are cast in place at the middle part of the concrete arch, a connecting beam at the top of the slope is cast, the longitudinal slope beams are connected together, an arch beam of light building bricks of arch-shaped frames is built by building blocks between the longitudinal slope beams, slope plants are planted between the frames, soil is fixed and protected, anchor rods are arranged as required, and finally a cut-off ditch is built at the top of the slope, so that the whole construction is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011577622.2A CN112627204A (en) | 2020-12-28 | 2020-12-28 | Reinforcing structure of unstable side slope and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011577622.2A CN112627204A (en) | 2020-12-28 | 2020-12-28 | Reinforcing structure of unstable side slope and construction method thereof |
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| Publication Number | Publication Date |
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| CN112627204A true CN112627204A (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011577622.2A Pending CN112627204A (en) | 2020-12-28 | 2020-12-28 | Reinforcing structure of unstable side slope and construction method thereof |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08296231A (en) * | 1995-04-24 | 1996-11-12 | Kensetsu Kiso Eng Co Ltd | Construction method for stabilizing slope, and construction method for extension in slope |
| CN101029490A (en) * | 2007-04-02 | 2007-09-05 | 西南交通大学 | Method for preventing and managing rock/upper side slope |
| CN202298650U (en) * | 2011-10-26 | 2012-07-04 | 华侨大学 | Arched retaining wall |
| CN102912805A (en) * | 2012-11-22 | 2013-02-06 | 河海大学 | Cement mixing pile structure for side slope solidification |
| CN106013191A (en) * | 2016-07-11 | 2016-10-12 | 杭州江润科技有限公司 | Environmental-friendly grass concrete highway slope protection structure and construction method thereof |
| CN108385715A (en) * | 2018-02-07 | 2018-08-10 | 重庆大学 | A kind of assembled stake arch combination retaining wall and its construction method |
| CN109653221A (en) * | 2019-02-21 | 2019-04-19 | 中水北方勘测设计研究有限责任公司 | For high slope, the retaining structure in narrow location |
| CN112095632A (en) * | 2020-08-21 | 2020-12-18 | 贵州大学 | Pile-arch combined retaining structure and construction method thereof |
| CN214301791U (en) * | 2020-12-28 | 2021-09-28 | 中水北方勘测设计研究有限责任公司 | Reinforced structure of unstable side slope |
-
2020
- 2020-12-28 CN CN202011577622.2A patent/CN112627204A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08296231A (en) * | 1995-04-24 | 1996-11-12 | Kensetsu Kiso Eng Co Ltd | Construction method for stabilizing slope, and construction method for extension in slope |
| CN101029490A (en) * | 2007-04-02 | 2007-09-05 | 西南交通大学 | Method for preventing and managing rock/upper side slope |
| CN202298650U (en) * | 2011-10-26 | 2012-07-04 | 华侨大学 | Arched retaining wall |
| CN102912805A (en) * | 2012-11-22 | 2013-02-06 | 河海大学 | Cement mixing pile structure for side slope solidification |
| CN106013191A (en) * | 2016-07-11 | 2016-10-12 | 杭州江润科技有限公司 | Environmental-friendly grass concrete highway slope protection structure and construction method thereof |
| CN108385715A (en) * | 2018-02-07 | 2018-08-10 | 重庆大学 | A kind of assembled stake arch combination retaining wall and its construction method |
| CN109653221A (en) * | 2019-02-21 | 2019-04-19 | 中水北方勘测设计研究有限责任公司 | For high slope, the retaining structure in narrow location |
| CN112095632A (en) * | 2020-08-21 | 2020-12-18 | 贵州大学 | Pile-arch combined retaining structure and construction method thereof |
| CN214301791U (en) * | 2020-12-28 | 2021-09-28 | 中水北方勘测设计研究有限责任公司 | Reinforced structure of unstable side slope |
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