CN112681348A - Slope treatment method - Google Patents
Slope treatment method Download PDFInfo
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- CN112681348A CN112681348A CN202011578211.5A CN202011578211A CN112681348A CN 112681348 A CN112681348 A CN 112681348A CN 202011578211 A CN202011578211 A CN 202011578211A CN 112681348 A CN112681348 A CN 112681348A
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Abstract
The invention discloses a slope management method, which comprises the steps of firstly, building a retaining wall at a slope toe without disturbance, and backfilling a soil presser foot behind the retaining wall; pouring a plurality of rows and columns of grouting plates on the side slope; the method comprises the following steps of (1) forming a plurality of disordered holes in an outer pipe of a self-advancing anchor rod, drilling a grouting hole by using the self-advancing anchor rod with the disordered holes, grouting cement slurry by using an anchor rod grouting machine, performing grouting according to the grouting pressure required by design, stopping grouting when the consistency of the slurry flowing out of the edge of a grout stop plug is consistent with the grouting consistency or a pressure gauge reaches the designed pressure value, and enabling the cement slurry to pass through the disordered holes to form tree-root-shaped cement stones; and (3) building a catch basin at the top of the slope, building a horse way drainage basin at the horse way, planting vegetation behind the retaining wall, and finishing the whole construction. The self-advancing anchor rod with the disordered open pores is used, construction disturbance is small, construction is rapid and convenient, tree root-shaped cement stones are formed through grouting, the slope is stabilized through the anti-slip performance of the slope toe anti-slip wall soil body, earthwork excavation is reduced, excessive disturbance to original appearances is avoided, and the ecological environment is fully protected.
Description
Technical Field
The invention relates to slope management, in particular to a slope management method.
Background
The slope is a slope with an inclined blank surface, the slope has a tendency of sliding downwards integrally under the action of self weight and external force, and if the sliding force of a certain normal surface in the slope is greater than or equal to the anti-sliding force of a slope body, the slope is unstable.
The anchor rod is a common slope reinforcement form, the self-advancing anchor rod integrates drilling, anchor rod installation, grouting and anchoring, slurry is sprayed out of the drilling hole through the hollow part of the anchor rod, cracks around the anchor rod can be filled rapidly, and the anchor rod has the advantages of high construction speed, large anchoring force, simplicity in operation and the like. Cement mortar is pressed into the pipe through grouting, the mortar is turned over outside the steel pipe through a grout overflow hole on the anchor rod or a reserved hole at the bottom of the pipe, and finally an anchor rod and cement mortar composite is formed, so that the slip resistance of a soil body can be obviously improved through the grouting pipe pile.
The traditional slope management usually adopts the forms of anchor rods (anchor cables), frame lattice beams, sprayed concrete, anti-slide piles (walls), stone-building slope protection and the like, and the measures greatly disturb the primary slope, greatly damage the vegetation of the slope and have no ecological environmental protection and landscape functions. With the development of technology and the improvement of requirements on ecological environment, the demand and application of the society on an ecological friendly slope treatment method are wider and wider.
Disclosure of Invention
The invention aims to solve the technical problem of providing a side slope treatment method, which reduces the earth excavation in the side slope treatment process, shortens the construction time and simplifies the construction operation; not only can stabilize the side slope, but also can avoid large disturbance so as to protect the ecological environment.
In order to solve the problems, the technical scheme adopted by the invention is as follows: a slope management method comprises the steps of firstly, building a retaining wall at a slope toe without disturbance, and backfilling a soil presser foot behind the wall; pouring a plurality of rows and columns of grouting plates on the side slope; the method comprises the following steps of (1) forming a plurality of disordered holes in an outer pipe of a self-advancing anchor rod, drilling a grouting hole by using the self-advancing anchor rod with the disordered holes, grouting cement slurry by using an anchor rod grouting machine, performing grouting according to the grouting pressure required by design, stopping grouting when the consistency of the slurry flowing out of the edge of a grout stop plug is consistent with the grouting consistency or a pressure gauge reaches the designed pressure value, and enabling the cement slurry to pass through the disordered holes to form tree-root-shaped cement stones; and (3) building a catch basin at the top of the slope, building a horse way drainage basin at the horse way, planting vegetation behind the retaining wall, and finishing the whole construction.
Planting vegetation behind the retaining wall, watering the maintenance to afforestation vegetation earlier stage.
The intercepting ditch adopts grouted stones.
The drilling depth of the self-advancing anchor rod at least extends to the position below a sliding surface of a side slope.
5 self-advancing anchor rods are distributed at the same grout pressing plate, namely 1 self-advancing anchor rod is distributed on the vertical side slope, the self-advancing anchor rods are symmetrical, 2 self-advancing anchor rods are distributed in 2 planes vertical to the side slope, and the angle between the 4 self-advancing anchor rods and the self-advancing anchor rods vertical to the side slope is 30 degrees.
The diameter of the disordered hole on the self-advancing anchor rod outer tube is selected to be 5-10 mm at random, the closer to the root, the larger the hole diameter is, and therefore the root-shaped cement stone slope can be formed after grouting.
The mud jacking plates are arranged on the side slope in a quincunx mode, and the row spacing is 2.5-3.0 m.
The backfill soil adopts planting soil or humus soil to plant greening plants suitable for local survival.
The invention has the beneficial effects that: the construction of the self-advancing anchor rod with the disordered holes is small in disturbance and rapid and convenient to construct, the tree root-shaped cement stones are formed through grouting, the side slope is stabilized through the anti-sliding performance of the slope toe anti-sliding wall soil body, meanwhile, the earthwork excavation is reduced, the excessive disturbance to the original appearance is avoided, and the ecological environment is fully protected.
Drawings
FIG. 1 is a sectional view of a slope by the method of slope treatment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
the invention relates to a side slope treatment method, which comprises the steps of firstly building a retaining wall on a slope toe without disturbance, and backfilling a soil presser foot behind the retaining wall; pouring a plurality of rows and columns of grouting plates on the side slope; the method comprises the following steps of (1) forming a plurality of disordered holes in an outer pipe of a self-advancing anchor rod, drilling a grouting hole by using the self-advancing anchor rod with the disordered holes, grouting cement slurry by using an anchor rod grouting machine, performing grouting according to the grouting pressure required by design, stopping grouting when the consistency of the slurry flowing out of the edge of a grout stop plug is consistent with the grouting consistency or a pressure gauge reaches the designed pressure value, and enabling the cement slurry to pass through the disordered holes to form tree-root-shaped cement stones; and (3) building a catch basin at the top of the slope, building a horse way drainage basin at the horse way, planting vegetation behind the retaining wall, and finishing the whole construction.
Preferably, the vegetation is planted behind the retaining wall, and the greening vegetation is irrigated and maintained in the early stage. The intercepting ditch adopts grouted stones. The drilling depth of the self-advancing anchor rod at least extends to the position below a sliding surface of a side slope. 5 self-advancing anchor rods are distributed at the same grout pressing plate, namely 1 self-advancing anchor rod is distributed on the vertical side slope, the self-advancing anchor rods are symmetrical, 2 self-advancing anchor rods are distributed in 2 planes vertical to the side slope, and the angle between the 4 self-advancing anchor rods and the self-advancing anchor rods vertical to the side slope is 30 degrees. The diameter of the disordered hole on the self-advancing anchor rod outer tube is selected to be 5-10 mm at random, the closer to the root, the larger the hole diameter is, and therefore the root-shaped cement stone slope can be formed after grouting. The mud jacking plates are arranged on the side slope in a quincunx mode, and the row spacing is 2.5-3.0 m. The backfill soil adopts planting soil or humus soil to plant greening plants suitable for local survival.
As shown in figure 1, specifically, a cut-off ditch 2 is excavated at the top of a slope 1, a drainage ditch 4 is excavated on a sidewalk 3, a self-advancing anchor rod 6 is adopted for drilling a grouting hole on the slope 1, a disordered hole 5 is arranged on the self-advancing anchor rod, a grouting plate 8 is pressed on the self-advancing anchor rod grouting hole, a retaining wall 9 is built at the toe of the slope, a soil pressing foot 10 is filled behind the wall, a greening plant 11 suitable for local survival is planted on the soil pressing foot 10, and a tree-root-shaped cement stone 7 is formed in the grouting hole 6 through the disordered hole 5 on the self-advancing anchor rod.
The drilling depth of the self-advancing anchor rod is calculated, but at least the drilling depth of the self-advancing anchor rod should be deep below a slope sliding surface. The diameter of the open hole of the disordered hole 5 can be randomly selected to be 5-10 mm, and the closer to the root, the larger the hole diameter is, so that a tree root-shaped cement stone 7 solid slope is formed after grouting.
The mud jacking plates 8 are arranged on the side slope 1 in a quincunx mode, and the row spacing is 2.5-3.0 m. The retaining wall 9 is built in a disturbance-free mode to reduce excavation and disturbance. The filling soil 10 behind the wall can adopt planting soil or humus soil, and can plant greening plants 11 suitable for local survival.
The method is characterized in that a self-advancing anchor rod with disordered holes is grouted, the whole anchor rod and cement paste form tree-root-shaped cement stones after grouting, the anchoring effect is enhanced, and meanwhile, the slope top intercepting ditch, the horse-race drainage ditch and the slope toe anti-slip retaining wall are utilized to further improve the anti-slip effect of a soil body. The method can effectively improve the performance of the side slope, fix the slope and avoid the disturbance to the original appearance as much as possible, and has certain ecological value.
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 to the methods, shapes and principles disclosed in the present invention are within the scope of the present invention.
Claims (8)
1. A method for treating side slope is characterized in that firstly, a retaining wall is built on a slope toe without disturbance, and soil presser feet are backfilled behind the retaining wall; pouring a plurality of rows and columns of grouting plates on the side slope; the method comprises the following steps of (1) forming a plurality of disordered holes in an outer pipe of a self-advancing anchor rod, drilling a grouting hole by using the self-advancing anchor rod with the disordered holes, grouting cement slurry by using an anchor rod grouting machine, performing grouting according to the grouting pressure required by design, stopping grouting when the consistency of the slurry flowing out of the edge of a grout stop plug is consistent with the grouting consistency or a pressure gauge reaches the designed pressure value, and enabling the cement slurry to pass through the disordered holes to form tree-root-shaped cement stones; and (3) building a catch basin at the top of the slope, building a horse way drainage basin at the horse way, planting vegetation behind the retaining wall, and finishing the whole construction.
2. The method of claim 1, wherein vegetation is planted behind the retaining wall and greenery is irrigated and maintained in an early stage.
3. The slope treatment method according to claim 1, wherein the intercepting drain is made of masonry.
4. The method of claim 1, wherein the self-advancing bolt bore depth extends at least below a slope sliding surface.
5. The method according to claim 1, wherein 5 self-advancing anchor rods are laid at the same grout plate, namely 1 vertical slope, and are symmetrical, 2 anchor rods are laid in 2 planes vertical to the slope, and 4 anchor rods are at 30 ° to the self-advancing anchor rods vertical to the slope.
6. The slope treatment method according to claim 5, wherein the diameter of the disordered hole on the outer tube of the self-propelled anchor rod is randomly selected to be 5-10 mm, and the closer to the root, the larger the hole diameter is, so that a tree root-shaped cement stone slope can be formed after grouting.
7. The method for treating the side slope according to claim 1, wherein the mud jacking plates are arranged on the side slope in a quincunx manner, and the row spacing is 2.5-3.0 m.
8. The method for treating a side slope according to claim 1, wherein the backfill soil is planting soil or humus soil for planting greening plants suitable for local survival.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011578211.5A CN112681348A (en) | 2020-12-28 | 2020-12-28 | Slope treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011578211.5A CN112681348A (en) | 2020-12-28 | 2020-12-28 | Slope treatment method |
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| CN112681348A true CN112681348A (en) | 2021-04-20 |
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| CN202011578211.5A Pending CN112681348A (en) | 2020-12-28 | 2020-12-28 | Slope treatment method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115030660A (en) * | 2022-06-22 | 2022-09-09 | 应急管理部国家自然灾害防治研究院 | Drilling device for grouting reinforcement of liquefied layer inside roadbed slope |
| CN116695746A (en) * | 2023-06-25 | 2023-09-05 | 四川省华地建设工程有限责任公司 | System and method for preventing and controlling groundwater on filling side slope |
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| KR20070003201A (en) * | 2005-07-01 | 2007-01-05 | 오승탁 | Stepped retaining wall |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115030660A (en) * | 2022-06-22 | 2022-09-09 | 应急管理部国家自然灾害防治研究院 | Drilling device for grouting reinforcement of liquefied layer inside roadbed slope |
| CN116695746A (en) * | 2023-06-25 | 2023-09-05 | 四川省华地建设工程有限责任公司 | System and method for preventing and controlling groundwater on filling side slope |
| CN116695746B (en) * | 2023-06-25 | 2024-05-14 | 四川省华地建设工程有限责任公司 | System and method for preventing and controlling groundwater on filling side slope |
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Application publication date: 20210420 |