CN115262588B - Assembled self-adaptive slope surface protection structure and construction method thereof - Google Patents
Assembled self-adaptive slope surface protection structure and construction method thereof Download PDFInfo
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- CN115262588B CN115262588B CN202210721407.8A CN202210721407A CN115262588B CN 115262588 B CN115262588 B CN 115262588B CN 202210721407 A CN202210721407 A CN 202210721407A CN 115262588 B CN115262588 B CN 115262588B
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- 238000010276 construction Methods 0.000 title claims abstract description 54
- 239000004575 stone Substances 0.000 claims abstract description 50
- 239000002689 soil Substances 0.000 claims abstract description 27
- 238000004873 anchoring Methods 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims abstract description 4
- 239000004927 clay Substances 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 20
- 238000004140 cleaning Methods 0.000 claims description 12
- 241000923606 Schistes Species 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 2
- 230000003044 adaptive effect Effects 0.000 claims 2
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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
- E02D17/205—Securing of slopes or inclines with modular blocks, e.g. pre-fabricated
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
- E02B3/129—Polyhedrons, tetrapods or similar bodies, whether or not threaded on strings
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- 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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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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- Crystallography & Structural Chemistry (AREA)
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- Mechanical Engineering (AREA)
- Revetment (AREA)
- Retaining Walls (AREA)
Abstract
The invention discloses an assembled self-adaptive slope surface protection structure and a construction method thereof, wherein the structure plays a role in protecting a slope soil body, a lower protection assembly is paved at the position of a slope foot of the slope soil body, an upper protection assembly is paved at the position of a slope top, a middle protection assembly is arranged at the middle part of the slope surface, a settlement joint of a transverse slope surface is arranged on the slope surface, and the protection assembly consists of protection units. The construction method comprises the following steps: processing a prefabricated connecting piece and a prefabricated cross beam; excavating a node foundation groove and a precast beam foundation groove; positioning and constructing a settlement joint on the slope; installing an anchoring foundation without grouting; hoisting the prefabricated cross beam; installing a masonry framework; hoisting a sheet stone structure; and tensioning the anchor rod to finish construction. The invention retains the general advantages of the existing integrally prefabricated large-volume ecological protection, overcomes the defect of heavy weight of the integrally prefabricated large-volume ecological protection structure, is particularly suitable for the engineering inconvenient for mechanized construction in construction, is convenient for construction, and has strong popularization.
Description
Technical Field
The invention belongs to the technical field of civil engineering, and particularly relates to an assembled self-adaptive slope surface protection structure and a construction method thereof.
Background
The traditional landslide control method comprises slope drainage, load shedding back pressure, anti-slide piles, retaining walls, anchoring and the like. Because the cost of constructing drainage facilities is low, the method becomes the preferred landslide stability control method, but the drainage effect is very little for large-scale highways, railways and diversion engineering side slopes.
Thus, structures of retaining walls, slide piles, anchor lines, etc. which are inherently related to ground anchors are applied on a large scale. The construction method has the advantages of light structure, strong terrain adaptability, convenient construction, small disturbance, environmental friendliness and the like.
However, common slope protection modes are easy to cause engineering diseases such as slope instability, uneven foundation deformation, building deformation, rock mass collapse, landslide, mud-rock flow and the like and geological disasters. The anchor rod is an important means in anchoring engineering, is widely used for multi-anchor rod support in side slope engineering, foundation pit engineering and the like, has the advantages of rapid construction, light equipment, simple technology, low cost and the like, and is favored in various engineering fields. Soil is a loose medium, and plastic deformation of the soil is large under the action of external force, and large displacement is not allowed in practical engineering, which is an important problem in the anchor rod technology.
Disclosure of Invention
The invention provides an assembled self-adaptive slope surface protection structure and a construction method thereof, aiming at solving the problems existing in the prior art.
The technical scheme of the invention is as follows: the utility model provides an assembled self-adaptation side slope surface protection structure, includes the side slope soil body of slope, the slope foot position of side slope soil body is spread and is had lower protection sub-unit, and the slope top position of side slope soil body is spread and is had upper protection sub-unit, side slope soil body middle part is provided with middle part protection sub-unit, be provided with the settlement joint on the slope between middle part protection sub-unit and lower protection sub-unit, the upper protection sub-unit, middle part protection sub-unit, lower protection sub-unit, upper protection sub-unit are constituteed by the protection unit.
Still further, the protection unit includes the brickwork skeleton, be provided with the piece stone structure that protects the side slope in the brickwork skeleton, be provided with the clay that fixes between brickwork skeleton, the piece stone structure.
Furthermore, the protection unit is in a quadrangle shape, two opposite angles of the protection unit are along the slope direction, and the other two opposite angles of the protection unit are along the slope direction.
Still further, the masonry skeleton includes prefabricated beams that form four sides and prefabricated connectors that secure adjacent sides at the vertices.
Still further, the lateral wall department of prefabricated connecting piece forms the buckle groove, the buckle groove is fixed the one end of prefabricated crossbeam, be provided with the stock hole in the prefabricated connecting piece, prefabricated crossbeam are assembled and are formed the protection space, fix masonry skeleton on the side slope through the stock hole.
Still further, the monolithic structure sets up in the protection space, the monolithic structure includes square monolithic, no. I monolithic, no. II monolithic, square monolithic, no. I monolithic, no. II monolithic assemble the back with the protection space suited.
Furthermore, the I-shaped and II-shaped rubble is in a right-angle trapezoid shape, two oblique sides of the I-shaped and II-shaped rubble are spliced in pairs, and the square rubble is adjacent to the tops of the I-shaped and II-shaped rubble.
Furthermore, a clay seam I is formed between the No. I and II stones, and the clay seam I is along the slope direction.
The anchor rod connecting piece is arranged in the anchor rod hole of the prefabricated connecting piece, and the anchor rod connecting piece is fixed in a slope soil body.
A construction method of an assembled self-adaptive slope surface protection structure comprises the following steps:
processing prefabricated connecting piece and prefabricated beam in factory
Ii, excavating node foundation grooves and prefabricated beam foundation grooves
Firstly, cleaning a slope, and keeping the slope flat;
then, determining the placement positions of the prefabricated connecting pieces and the prefabricated cross beams;
finally, excavating a node foundation groove and a prefabricated beam foundation groove;
iii, positioning and constructing a settlement joint on the slope
Iv, drilling holes and cleaning holes at the position of the node foundation groove, installing an anchoring foundation, and not grouting;
hoisting the precast beam at the position of the precast beam foundation groove, and aligning and leveling the precast beam;
vi, installing masonry skeleton
Firstly, hoisting and placing prefabricated connecting pieces at the positions of the node foundation grooves;
then, overlapping the prefabricated connecting piece and the prefabricated cross beam;
then, the anchor rod passes through the prefabricated connecting piece and is screwed, the prefabricated connecting piece and the prefabricated cross beam are adjusted, the structure is smooth, and the installation of the masonry skeleton is completed;
vii, hoisting the stone structure
Hoisting and placing an assembled dry-laid rubble structure in the prefabricated connecting piece and the prefabricated cross beam, and aligning and leveling;
viii tensioning the anchor rod to complete the construction
And installing a pressure-bearing bedplate above the prefabricated connecting piece, installing an anchor head, tensioning the anchor rod, and finally sealing the anchor.
The beneficial effects of the invention are as follows:
the split mortise and tenon joint structure is adopted, the single lattice is light in weight, and is convenient to place and lay in the construction process, so that the construction is convenient, the effect is particularly remarkable under the condition that the mechanized construction cannot be realized, the split mortise and tenon joint structure is easy to maintain after the local damage, the general advantages of the existing integrally prefabricated large-volume ecological protection structure are reserved, the defect that the integrally prefabricated large-volume ecological protection structure is heavy is overcome, and the split mortise and tenon joint structure is particularly suitable for engineering inconvenient to mechanically construct in construction.
The construction site is mainly in an assembling mode, the prefabricated splicing blocks and construction quality are easy to detect, the quality is controllable, the construction process is compact, the wet operation area is small, and by adopting the construction method, the pollution of solid garbage, dust, sewage, noise and the like can be greatly reduced, the influence on the environment of the construction site is small, and the construction site has the advantages of civilized construction, environmental protection and the like, and is good in popularization.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective cross-sectional view of the present invention;
FIG. 3 is a side view of the present invention;
FIG. 4 is a schematic plan view of the present invention;
FIG. 5 is a schematic view of the fixing of a masonry skeleton in accordance with the present invention;
FIG. 6 is a fixed perspective view of the pressure platen of the present invention;
FIG. 7 is a flow chart of the method of the present invention;
wherein,
1. prefabricated connecting piece of masonry skeleton 2
3. 4 stone structures of prefabricated crossbeam
5. Clay 6 anchor rod hole
7. Buckle groove 8 anchor rod
9. Expansion head 10 pressure-bearing platen
11. Slope soil body 12 pedestal
13. Waterproof layer for external screw thread 14 of anchor rod
15. Anchor 16 settlement joint
41. Square stone 42I stone
43. No. II piece 44 strip piece
51. No. I clay slit 52 No. II clay slit
53. III clay seam.
Detailed Description
The present invention will be described in detail below with reference to the drawings and examples:
as shown in fig. 1 to 7, an assembled self-adaptive slope surface protection structure comprises an inclined slope soil body 11, wherein a lower protection assembly is paved at the position of a slope foot of the slope soil body 11, an upper protection assembly is paved at the position of a slope top of the slope soil body 11, a middle protection assembly is arranged in the middle of the slope soil body 11, a settlement joint 16 of a transverse slope surface is arranged between the middle protection assembly and the lower protection assembly as well as between the middle protection assembly and the upper protection assembly, and the middle protection assembly, the lower protection assembly and the upper protection assembly are all composed of protection units.
The protection unit comprises a masonry framework 1, wherein a piece stone structure 4 for protecting a side slope is arranged in the masonry framework 1, and clay 5 for fixing is arranged between the masonry framework 1 and the piece stone structure 4.
The protection unit is in a quadrangle shape, two opposite angles of the protection unit are along the slope direction, and the other two opposite angles of the protection unit are along the slope direction.
The masonry skeleton 1 comprises prefabricated beams 3 forming four sides and prefabricated connecting pieces 2 for fixing adjacent sides at the top points.
The lateral wall department of prefabricated connecting piece 2 forms buckle groove 7, buckle groove 7 fixes the one end of prefabricated crossbeam 3, be provided with stock hole 6 in the prefabricated connecting piece 2, prefabricated crossbeam 3 assemble and form the protection space, fix masonry skeleton 1 on the side slope through stock hole 6.
The laminated stone structure 4 is arranged in a protection space, the laminated stone structure 4 comprises square laminated stones 41, no. I laminated stones 42 and No. II laminated stones 43, and the square laminated stones 41, the No. I laminated stones 42 and the No. II laminated stones 43 are assembled and then are matched with the protection space.
The I-shaped and II-shaped laminated stones 42 and 43 are right-angle trapezoidal shapes, two oblique sides of the I-shaped and II-shaped laminated stones 42 and 43 are spliced in pairs, and the square laminated stones 41 are adjacent to the ladder tops of the I-shaped and II-shaped laminated stones 42 and 43.
No. I clay slit 51 is formed between No. I and No. II stones 42 and 43, and the No. I clay slit 51 is along the slope direction.
An anchor rod connecting piece is arranged in the anchor rod hole 6 of the prefabricated connecting piece 2 and is fixed in the side slope soil body 11.
Specifically, the anchor rod connecting piece comprises an anchor body 15, wherein an expansion head 9 is arranged in the anchor body 15, and an anchor rod 8 is arranged at the expansion head 9.
The free end of the anchor rod 8 passes through the anchor rod hole 6 of the prefabricated connecting piece 2, and an anchor rod external thread 13 is formed at the outer wall of the anchor rod 8.
The bottom of the prefabricated connecting element 2 is provided with a waterproof layer 14.
A pedestal 12 and a bearing bedplate 10 are arranged on the free end of the anchor rod 8, and the pedestal 12 is positioned between the bearing bedplate 10 and the prefabricated connecting piece 2.
Specifically, a No. ii clay slit 52 is provided between the square sheet stone 41 and the No. i sheet stone 42, and a No. iii clay slit 53 is provided between the square sheet stone 41 and the No. ii sheet stone 43.
The I-shaped clay seam 51, the II-shaped clay seam 52 and the III-shaped clay seam 53 are in a connected herringbone shape, the I-shaped clay seam 51 is in a slope top slope toe direction, and the II-shaped clay seam 52, the III-shaped clay seam 53 and the slope top slope toe direction are inclined.
The masonry skeleton 1 is arranged with one angle facing the slope top and one angle facing the slope toe, and the I-shaped clay seam 51 is aligned with the vertex angle facing the slope top in the masonry skeleton 1.
Clay 5 is arranged between the square schist 41, the I-typed schist 42, the II-typed schist 43 and the masonry skeleton 1.
Preferably, strip-shaped rubble 44 is also arranged in clay 5 connecting masonry skeleton 1 with square rubble 41, no. I rubble 42, no. II rubble 43.
Preferably, the side slope is provided with a settlement joint 16 at intervals of about 15m along the length direction.
Green plants are arranged in the clay 5 and the settlement joint 16; the 1 and square schist 41, the I-type schist 42 and the II-type schist 43 are in an assembled structure, and are hoisted and placed on site after being prefabricated in a factory in a designed mode; finally, an assembled self-adaptive slope protection structure is formed.
The prefabricated connecting piece 2 is internally reserved with an anchor rod hole 6, and mortise holes are round. The concrete strength of the prefabricated beam 3 is not less than C20, and the prefabricated connecting piece 2 is in a groined structure.
The prefabricated connecting piece 2 is not grouted in the construction process. All structures are connected into a whole, so that the requirement of lattice anchoring is met.
The clay content in the lamellar stone structure 4 is 20% -25%, and the lamellar stone is made of rock with low local cost and good freezing resistance; filling the central position of the lamellar stone structure with rock for resisting the frost heaving property of the soil body; at the junction of clay and rock, stress concentrations occur. Between the lattices, the beams are extruded by the stone structures at two sides, and frost heaving force generated by frost heaving of soil in the side slope is generated.
The seam filling of the setting seam 16 is a mixture of grass seeds, wood fibers, water retaining agents, binders, fertilizers and water, which are wrapped with asphalt batting.
A construction method of an assembled self-adaptive slope surface protection structure comprises the following steps:
processing prefabricated connecting piece and prefabricated beam in factory
Ii, excavating node foundation grooves and prefabricated beam foundation grooves
Firstly, cleaning a slope, and keeping the slope flat;
then, determining the placement positions of the prefabricated connecting pieces and the prefabricated cross beams;
finally, excavating a node foundation groove and a prefabricated beam foundation groove;
iii, positioning and constructing a settlement joint on the slope
Iv, drilling holes and cleaning holes at the position of the node foundation groove, installing an anchoring foundation, and not grouting;
hoisting the precast beam at the position of the precast beam foundation groove, and aligning and leveling the precast beam;
vi, installing masonry skeleton
Firstly, hoisting and placing prefabricated connecting pieces at the positions of the node foundation grooves;
then, overlapping the prefabricated connecting piece and the prefabricated cross beam;
then, the anchor rod passes through the prefabricated connecting piece and is screwed, the prefabricated connecting piece and the prefabricated cross beam are adjusted, the structure is smooth, and the installation of the masonry skeleton is completed;
vii, hoisting the stone structure
Hoisting and placing an assembled dry-laid rubble structure in the prefabricated connecting piece and the prefabricated cross beam, and aligning and leveling;
viii tensioning the anchor rod to complete the construction
And installing a pressure-bearing bedplate above the prefabricated connecting piece, installing an anchor head, tensioning the anchor rod, and finally sealing the anchor.
More specifically, the construction method of the assembled self-adaptive slope protection structure comprises the following steps:
and i, carrying out corresponding calculation and design according to the side slope condition, finishing the arrangement and design of the prefabricated connecting piece 2 and the prefabricated cross beam 3, and carrying out the production of the prefabricated connecting piece 2 and the prefabricated cross beam 3 according to the design. And (5) maintaining the prefabricated components according to the standard, and transporting the prefabricated components to a construction site after the prefabricated components reach the standard.
If the existing side slope supporting structure is replaced, the length of the prefabricated cross beam 3 is matched with the existing anchor rod spacing.
And (3) determining the positions of the corresponding anchor points and the prefabricated cross beams 3 by design measurement, excavating a foundation trench according to the determined positions, and leveling the side slope again.
If the existing side slope supporting structure is replaced, the existing side slope supporting structure needs to be cleaned, and the side slope is leveled again, so that the new structural requirement is met.
And ii, cleaning the slope on site, cleaning the floating soil on the surface of the slope, and filling pits on the slope surface at the same time, so that the surface of the slope is generally smooth and has no obvious height unevenness.
Then, according to the building site requirement, the slope is lofted according to the dimension hanging line, and then the soil body is excavated radially along the lofted route to form a groove, and the groove is used for embedding the parts of various splicing blocks so as to be capable of providing the stability of the whole structure.
After the trench is dug, firstly, backfilling and leveling the overexcavated part at the bottom of the trench by adopting mortar, wherein the backfilling and leveling thickness is about 5-10cm.
After lofting and slotting, the prefabricated connecting pieces 2 and the prefabricated cross beams 3 in various masonry skeletons can be assembled, namely, the prefabricated connecting pieces are assembled in the grooves as required.
Specifically, in the assembling process, the assembling is preferably performed from the bottom of the side slope to the top.
In the assembling process, the prefabricated connecting piece 2 and the prefabricated cross beam 3 on one masonry framework are aligned with the prefabricated connecting piece 2 and the prefabricated cross beam 3 on the other masonry framework for assembling; and, coating has clay on first brickwork skeleton and second brickwork skeleton to improve the fastness of two pieces of assembling.
The surface of the two assembled masonry skeletons, which is contacted with the slope, is kept tightly attached.
After the splicing is completed, the spliced masonry skeletons are bonded by clay, gaps on two sides of the spliced blocks and the grooves are filled by clay to be in pointing, and the clay is full and full in pointing process, so that the gaps can be filled.
Finally, after finishing pointing, the whole structure is maintained in time, such as wetting and cooling, preventing and curing gaps generated in the clay changing process, or repairing the generated gaps in time, preventing and curing various splicing blocks from generating displacement deviation so as to influence the whole engineering quality. After the maintenance reaches the construction requirement period and is accepted, the construction of the slope protection structure is completed.
In the lofting and grooving step, the width of the groove formed by excavation is not larger than the width of the corresponding prefabricated connecting piece 2 and the prefabricated cross beam 3, so that smooth splicing of various splicing blocks in the groove can be realized, and gaps generated by splicing can be prevented.
Meanwhile, the depth of the groove is not more than 5cm of the pre-buried thickness of the corresponding prefabricated connecting piece 2 and the prefabricated cross beam 3, so that the splicing block is prevented from being completely buried in the groove.
And iii, constructing an expansion joint, wherein a settlement joint 16 is arranged at intervals of about 15m along the length direction of the side slope, the joint is 2-3cm wide and 13-15cm deep, and the joint is filled with a mixture of grass seeds, wood fibers, water-retaining agents, adhesives, fertilizers and water, which are wrapped by asphalt hemp batting.
Iv, drilling holes and distributing anchor rods according to the designed anchor rod positions, cleaning the slope surface before the anchor rods are erected, cleaning loose pumice stones and floating soil one by one, and flattening the slope surface as much as possible; drilling holes by using an air drill or an electric drill after the point filling and setting-out, wherein the drilling direction and the slope face form a vertical angle, and the Kong Chuixi is cleaned by using an air pipe after the hole drilling is finished; the anchor rod is installed in the hole in the direction vertical to the slope surface without grouting.
After the anchor rod is installed, the prefabricated connecting piece 2 is placed at the corresponding position, so that the anchor rod passes through an anchoring channel of the prefabricated connecting piece 2 to fix the anchor rod.
And the corresponding prefabricated cross beams 3 are hung around the prefabricated connecting piece 2, so that tenons of the prefabricated cross beams are connected into mortise holes of the prefabricated connecting piece 2, and positioning of the prefabricated cross beams and the prefabricated connecting piece 2 is realized.
And v, repeating the steps, and installing the prefabricated connecting pieces 2 and the prefabricated cross beams 3 at the positions of the corresponding prefabricated connecting pieces 2 and the corresponding prefabricated cross beams 3 to realize framework lap joint of the side slope supporting structure and ensure balance of the whole structure.
Specifically, when a protective structure is constructed on a side slope of a embankment, the construction is started from top to bottom due to the gradient direction along the side slope. Because, in the concrete construction process, it is also necessary to excavate the trench at the present step of the side slope and fill up the step of the trench, then set up the foot wall splicing blocks in the trench, and form the foot wall by mutually splicing the foot wall splicing blocks. After the construction of the foot wall is completed, the subsequent construction of leveling slope, lofting and slotting, splicing, pointing and maintenance is carried out.
And vi, supporting the mould at the joint of the prefabricated connecting piece 2 and the prefabricated cross beam 3, and pulling wires at the upper part, so that the prefabricated cross beam 3 after pouring is flush with the surface of the joint, concrete is poured, and vibrating is performed while pouring, so that the engineering quality is ensured.
And (5) curing the concrete after pouring, and removing the mould after the concrete reaches the requirement.
And vii. Hoisting and placing the dry masonry at the fixed position of the prefabricated nodes and the prefabricated cross beams 3, and aligning and leveling.
The assembled dry masonry structure is a factory prefabricated structure, and when the clay content is 20% -25%, the structural stability is strong.
Specifically, when the protective structure is constructed on the side slope of the embankment, firstly, paving the bottommost masonry skeleton, and reinforcing by driving anchor rods into the prefabricated connecting pieces 2; through the hoisted subsequent masonry skeleton, until the masonry skeleton is laid; hoisting the assembled dry masonry structure to the corresponding position; the lower part of the masonry structure is tightly combined with the toe, and a running water gap and an expansion joint are reserved according to the corresponding design.
And viii, stretching the anchor rod, and grouting and sealing the anchor rod by the formwork to realize the final side slope support structure.
The split mortise and tenon joint structure is adopted, the single lattice is light in weight, and is convenient to place and lay in the construction process, so that the construction is convenient, the effect is particularly remarkable under the condition that the mechanized construction cannot be realized, the split mortise and tenon joint structure is easy to maintain after the local damage, the general advantages of the existing integrally prefabricated large-volume ecological protection structure are reserved, the defect that the integrally prefabricated large-volume ecological protection structure is heavy is overcome, and the split mortise and tenon joint structure is particularly suitable for engineering inconvenient to mechanically construct in construction.
The construction site is mainly in an assembling mode, the prefabricated splicing blocks and construction quality are easy to detect, the quality is controllable, the construction process is compact, the wet operation area is small, and by adopting the construction method, the pollution of solid garbage, dust, sewage, noise and the like can be greatly reduced, the influence on the environment of the construction site is small, and the construction site has the advantages of civilized construction, environmental protection and the like, and is good in popularization.
Claims (4)
1. The utility model provides an assembled self-adaptation slope protection structure, includes slope soil body (11) of slope, its characterized in that: the slope is characterized in that a lower protection assembly is paved at the toe position of the slope soil body (11), an upper protection assembly is paved at the top position of the slope soil body (11), a middle protection assembly is arranged in the middle of the slope soil body (11), a settlement joint (16) with a transverse slope is arranged between the middle protection assembly and the lower protection assembly as well as between the middle protection assembly and the upper protection assembly, and the middle protection assembly, the lower protection assembly and the upper protection assembly are all composed of protection units;
the protection unit comprises a masonry framework (1), wherein a piece stone structure (4) for protecting a side slope is arranged in the masonry framework (1), and clay (5) for fixing is arranged between the masonry framework (1) and the piece stone structure (4);
the protection units are in a quadrangle shape, two opposite angles of the protection units are along the slope direction, and the other two opposite angles of the protection units are along the slope direction;
the masonry skeleton (1) comprises prefabricated beams (3) forming four sides and prefabricated connecting pieces (2) for fixing adjacent edges at the top points;
the stone structure (4) is arranged in the protection space, the stone structure (4) comprises square stones (41), no. I stones (42) and No. II stones (43), and the square stones (41), the No. I stones (42) and the No. II stones (43) are assembled and then are adapted to the protection space;
the I-shaped and II-shaped rubble (42, 43) are right-angle trapezoids, two oblique sides of the I-shaped and II-shaped rubble (42, 43) are spliced in pairs, and the square rubble (41) is adjacent to the tops of the I-shaped and II-shaped rubble (42, 43);
a clay seam (51) of the No. I is formed between the piece stone (42) of the No. I and the piece stone (43) of the No. II, and the clay seam (51) of the No. I is along the direction of the slope;
a No. II clay slit (52) is formed between the square sheet stone (41) and the No. I sheet stone (42), and a No. III clay slit (53) is formed between the square sheet stone (41) and the No. II sheet stone (43);
the clay seam (51), the clay seam (52) and the clay seam (53) are in a connected herringbone shape, the clay seam (51) is in the direction of the toe of the slope, and the clay seam (52), the clay seam (53) and the toe of the slope are inclined;
the masonry framework (1) is arranged with one angle facing the slope top and one angle facing the slope bottom, and the I-shaped clay seam (51) is aligned with the vertex angle facing the slope top in the masonry framework (1);
clay (5) is arranged between the square schist (41), the I-shaped schist (42), the II-shaped schist (43) and the masonry skeleton (1).
2. The assembled adaptive slope protection structure according to claim 1, wherein: the side wall department of prefabricated connecting piece (2) forms the buckle groove, the buckle groove is fixed the one end of prefabricated crossbeam (3), be provided with stock hole (6) in prefabricated connecting piece (2), prefabricated crossbeam (3) are assembled and are formed the protection space, fix brickwork skeleton (1) on the side slope through stock hole (6).
3. The assembled adaptive slope protection structure according to claim 1, wherein: an anchor rod connecting piece is arranged in an anchor rod hole (6) of the prefabricated connecting piece (2), and the anchor rod connecting piece is fixed in a slope soil body (11).
4. The construction method of the assembled self-adaptive slope protection structure according to claim 1, wherein the construction method comprises the following steps: the method comprises the following steps:
processing prefabricated connectors and prefabricated beams in a factory
(ii) excavation of node foundation trenches and prefabricated beam foundation trenches
Firstly, cleaning a slope, and keeping the slope flat;
then, determining the placement positions of the prefabricated connecting pieces and the prefabricated cross beams;
finally, excavating a node foundation groove and a prefabricated beam foundation groove;
(iii) positioning and constructing a settlement joint on the slope
(iv) drilling holes and cleaning holes at the positions of the node foundation grooves, installing an anchoring foundation, and not grouting;
(v) hoisting the precast beam at the precast beam foundation trench position, and aligning and leveling the precast beam;
(vi) installing masonry skeleton
Firstly, hoisting and placing prefabricated connecting pieces at the positions of the node foundation grooves;
then, overlapping the prefabricated connecting piece and the prefabricated cross beam;
then, the anchor rod passes through the prefabricated connecting piece and is screwed, the prefabricated connecting piece and the prefabricated cross beam are adjusted, the structure is smooth, and the installation of the masonry skeleton is completed;
(vii) hoisting the stone structure
Hoisting and placing an assembled dry-laid rubble structure in the prefabricated connecting piece and the prefabricated cross beam, and aligning and leveling;
(viii) tensioning the anchor rod to complete the construction
Installing a pressure-bearing bedplate above the prefabricated connecting piece, installing an anchor head, tensioning an anchor rod, and finally sealing the anchor;
the method comprises the steps of carrying out on-site cleaning of a side slope, cleaning floating soil on the surface of the side slope, filling pits on the slope surface, and enabling the surface of the side slope to be generally flat without obvious height unevenness;
then, according to the requirements of a construction site, setting out according to a size hanging line on a slope, and then excavating a soil body radially along the set-out route to form a groove, wherein the groove is used for burying parts of various splicing blocks so as to provide stability of the whole structure;
after the trench is excavated, firstly backfilling and leveling the overexcavated part at the bottom of the trench by adopting mortar, wherein the backfilling and leveling thickness is 5-10cm;
after lofting and slotting, assembling the prefabricated connecting pieces (2) and the prefabricated cross beams (3) in various masonry skeletons, namely assembling in the grooves as required;
specifically, in the assembling process, assembling is carried out from the bottom of the side slope to the top;
in the assembling process, the prefabricated connecting piece (2) and the prefabricated cross beam (3) on one masonry framework are aligned with the prefabricated connecting piece (2) and the prefabricated cross beam (3) on the other masonry framework for assembling; and clay is coated on the first masonry skeleton and the second masonry skeleton so as to improve the firmness of the two spliced blocks;
the surface of the assembled two masonry skeletons, which is contacted with the slope, is kept tightly attached;
after the splicing is completed, each spliced masonry skeleton is bonded by clay, and gaps at two sides of each spliced block and the groove are filled by clay to carry out pointing, wherein the clay is full and full in the pointing process, so that the gaps can be filled;
finally, after finishing pointing, curing the whole structure in time to prevent the clay from generating gaps in the changing process, and repairing the generated gaps in time to prevent various splicing blocks from generating displacement deviation to influence the whole engineering quality, and after curing reaches the construction requirement period and checking and accepting to be qualified, completing the construction of the slope protection structure;
in the lofting and grooving step, the width of a groove formed by excavation is not larger than the width of a corresponding prefabricated connecting piece (2) and a prefabricated cross beam (3), so that smooth splicing of various splicing blocks in the groove can be realized to prevent gaps generated by splicing;
meanwhile, the depth of the groove is not more than 5cm of the pre-buried thickness of the corresponding prefabricated connecting piece (2) and the pre-fabricated cross beam (3), so that the splicing block is prevented from being completely buried in the groove.
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| CN202210721407.8A CN115262588B (en) | 2022-06-24 | 2022-06-24 | Assembled self-adaptive slope surface protection structure and construction method thereof |
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| CN202210721407.8A CN115262588B (en) | 2022-06-24 | 2022-06-24 | Assembled self-adaptive slope surface protection structure and construction method thereof |
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| CN117605052B (en) * | 2023-11-16 | 2024-09-20 | 中冶武勘工程技术有限公司 | Side slope supporting structure and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08184051A (en) * | 1994-12-27 | 1996-07-16 | Maeda Seikan Kk | Execution method of slope frame block with greening vegetation body |
| CN202787282U (en) * | 2012-09-25 | 2013-03-13 | 赵振国 | Step type wet masonry rock berm roadbed side slope |
| CN203514256U (en) * | 2013-07-18 | 2014-04-02 | 管大为 | Sash type river bank revetment structure |
| CN208293521U (en) * | 2018-01-23 | 2018-12-28 | 张靖 | A kind of ecological riverway shore protection |
| CN113668576A (en) * | 2021-09-06 | 2021-11-19 | 河北建筑工程学院 | Assembled type flaky stone slope surface protection structure and construction method |
-
2022
- 2022-06-24 CN CN202210721407.8A patent/CN115262588B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08184051A (en) * | 1994-12-27 | 1996-07-16 | Maeda Seikan Kk | Execution method of slope frame block with greening vegetation body |
| CN202787282U (en) * | 2012-09-25 | 2013-03-13 | 赵振国 | Step type wet masonry rock berm roadbed side slope |
| CN203514256U (en) * | 2013-07-18 | 2014-04-02 | 管大为 | Sash type river bank revetment structure |
| CN208293521U (en) * | 2018-01-23 | 2018-12-28 | 张靖 | A kind of ecological riverway shore protection |
| CN113668576A (en) * | 2021-09-06 | 2021-11-19 | 河北建筑工程学院 | Assembled type flaky stone slope surface protection structure and construction method |
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| CN115262588A (en) | 2022-11-01 |
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