CN111996988A - River channel side slope construction method - Google Patents
River channel side slope construction method Download PDFInfo
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- CN111996988A CN111996988A CN202010711588.7A CN202010711588A CN111996988A CN 111996988 A CN111996988 A CN 111996988A CN 202010711588 A CN202010711588 A CN 202010711588A CN 111996988 A CN111996988 A CN 111996988A
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- 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
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M173/00—Lubricating compositions containing more than 10% water
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
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- 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
- E02B3/121—Devices for applying linings on banks or the water bottom
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- 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
- E02B3/14—Preformed blocks or slabs for forming essentially continuous surfaces; Arrangements thereof
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/04—Elements
- C10M2201/041—Carbon; Graphite; Carbon black
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
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Abstract
The application discloses a river channel side slope construction method, which comprises the following steps of 1, construction preparation, and cleaning of gravel impurities on a river channel side slope; step 2, producing a hollow concrete interlocking precast block; step 3, setting up a water retaining assembly; step 4, laying geotextile; step 5, constructing an ecological concrete cushion; step 6, constructing a drainage ditch; step 7, building the hollow concrete interlocking precast block: 7.1, grabbing the hollow concrete interlocking precast block by using a manipulator clamp for paving; and 7.2, sequentially building the hollow concrete chain precast blocks from bottom to top. The lifting appliance is assembled by the mechanical arm clamp through the hanger, the steel wire rope and the calipers formed by hinging the steel plate strips bent from the two lower ends, the structure is simple, the manufacturing cost is low, in the lifting process, the lower ends of the two steel plate strips respectively extend into the flower holes in the hollow concrete chain precast block, the calipers are tightened more and more under the action of gravity, and the hollow concrete chain precast block is ensured not to fall off.
Description
Technical Field
The invention relates to the technical field of riverway engineering side slope nursing, in particular to a riverway side slope construction method.
Background
At the present stage, the national requirements on environment protection and ecology are higher and higher, and for river course slope protection construction, a method of stacking stone dams and pouring is adopted in the traditional construction mode, so that the construction period is long, and the process is complicated; in the present stage, in order to further simplify the construction steps and save the engineering time, the ecological hollow concrete interlocking precast block protection slope becomes the most common protection and building form of the river channel engineering side slope and the highway engineering side slope, the hollow concrete interlocking precast block is produced in a factory, and is manufactured by adopting standardized integral pouring, so that the efficiency is high.
In the prior art, river slope construction comprises a slope top drainage ditch, an ecological slope surface and a slope foot; the slope top drainage ditch is formed by the concrete placement that permeates water, and ecological slope surface includes plant layer, ecological concrete surface course, planting nutrition soil layer and ecological blanket from top to bottom in proper order, and the toe is formed by reinforced concrete placement. The ecological protection structure system for the river channel side slope effectively inhibits the erosion degree of the revetment soil by water flow and enhances the water and soil retention capacity; the water exchange and regulation between land and water area are fully considered, and the non-point source pollution is effectively prevented; the slope top drainage ditch is constructed by pervious concrete, can effectively reduce land bank area pollutant and get into the river course, can effectively purify city domestic water.
For example, the invention patent with chinese patent publication No. CN111074843A discloses a hard riverway side slope ecological slope protection system and a construction method thereof, the system includes: the anchor rods are arranged on the side slope of the river channel and comprise a plurality of anchor rods which are uniformly arranged on the slope surface at intervals and are used for fixing the bidirectional geogrid and the plant-growing coiled material after the nutrient base material is poured; the bidirectional geogrid is arranged on the anchor rod and is 1 cm-3 cm away from the slope surface, and the bidirectional geogrid is used for enhancing the integrity of the base material cushion layer; the base material cushion layer is arranged on the slope and used for providing nutrition for the planted plants; the corrosion-resistant seepage-control layer is arranged on the surface of the base cushion layer and is formed by solidifying the corrosion-resistant seepage-control composite material and the base cushion layer; the vegetation coiled material is arranged on the anti-corrosion seepage-control layer, is fixed on the anchor rod and is used for containing a nutrient substrate; the nutrition substrate is arranged in the plant growing coiled material and is used for providing nutrition for the planted plants; the invention can promote plant growth and realize ecological restoration of the hard river channel side slope. The invention belongs to the field of ecological restoration engineering.
For another example, the invention patent with chinese patent publication No. CN109680650A discloses a river course side slope ecological protection structure system and a construction method thereof, including a drainage ditch located at the top of a slope, an ecological side slope surface, and a slope toe; the slope top drainage ditch is formed by the concrete placement that permeates water, and ecological slope surface includes plant layer, ecological concrete surface course, planting nutrition soil layer and ecological blanket from top to bottom in proper order, and the toe is formed by reinforced concrete placement. The ecological protection structure system for the river channel side slope effectively inhibits the erosion degree of the revetment soil by water flow and enhances the water and soil retention capacity; the water exchange and regulation between land and water area are fully considered, and the non-point source pollution is effectively prevented; the slope top drainage ditch is constructed by pervious concrete, can effectively reduce land bank area pollutant and get into the river course, can effectively purify city domestic water. The ecological protection structure system for the river channel side slope provided by the invention carries out ecological remodeling on the river channel water environment, creates a good living environment for the river biological diversity, and obviously improves the ecological benefit of the environment.
The prior art has at least the following problems:
the existing construction technology adopts manual laying of hollow concrete interlocking precast blocks, namely two persons adopt simple steel bar drag hooks to lay, so that the engineering quantity is large, time and labor are wasted, the efficiency is low, the mechanization degree is low, and the engineering construction requirement is difficult to meet.
Aiming at the problems that the prior art adopts manual laying of hollow concrete interlocking precast blocks, namely two persons adopt simple steel bar draw hooks to lay, the engineering quantity is large, time and labor are wasted, the efficiency is low, the mechanization degree is low, and the engineering construction needs are difficult to meet, and an effective solution is not provided at present.
Disclosure of Invention
The invention aims to provide a river channel side slope construction method aiming at the defects of the prior art.
The construction method of the riverway side slope comprises the following steps:
step 5, constructing an ecological concrete cushion;
step 7.1, grabbing the hollow concrete interlocking precast blocks by using a mechanical arm fixture for paving, and grabbing four hollow concrete interlocking precast blocks by using the mechanical arm fixture each time;
and 7.2, sequentially building the hollow concrete interlocking precast blocks from bottom to top, and abutting the lowermost hollow concrete interlocking precast block against the outer side wall of the drainage ditch.
Further, the construction preparation in step 1 comprises the following steps:
step 1.1, cleaning a river channel side slope, cleaning weeds on the river channel side slope by using a mower, and cleaning broken stones and garbage on the river channel side slope by using a rake;
step 1.2, measuring and lofting, namely measuring and lofting by adopting a total station, determining the construction range of the river channel side slope, and marking the construction range line of the river channel side slope by adopting a white marking line;
step 1.3, determining a river channel side slope excavation line, and lofting the river channel side slope excavation line on the river channel side slope by adopting a stay wire according to a construction slope ratio value;
step 1.4, renovating the river channel side slope, and excavating in the construction range line of the river channel side slope by adopting a back-hoe excavator according to the river channel side slope excavation line marked in the step 1.3;
and step 1.5, repairing the river channel side slope, backfilling the missing part on the river channel side slope by using earthwork during excavation, and tamping by using a frog ramming machine after backfilling.
Further, the step 2 of producing the hollow concrete interlocking precast block comprises the following steps:
step 2.1, manufacturing a mould according to a design drawing of the hollow concrete interlocking precast block, wherein the mould comprises a coaming, a clapboard and a handle which are fixed with each other, and the coaming and the clapboard enclose a plurality of mould cavities with openings at the upper end and the lower end;
step 2.2, producing the hollow concrete interlocking precast block by using the mould manufactured in the step 2.1:
step 2.2.1, washing the inner wall of the mold by using tap water, squaring the mold on a supporting plate after the water on the surface of the mold is evaporated, and coating a release agent on the side wall of a mold cavity;
step 2.2.2, pouring concrete into the mould cavity to 1/3 of the mould cavity, inserting a vibrating rod into the concrete for vibrating, and stopping vibrating when no bubbles overflow on the surface of the concrete;
step 2.2.3, continuously pouring concrete into the mould cavity until the concrete is fully paved in the whole mould cavity, inserting the vibrating rod into the concrete again for vibrating, starting the dust absorption fan, cleaning dust generated in the vibrating process of the concrete, stopping vibrating when no obvious bubbles overflow on the surface of the concrete, and closing the dust absorption fan;
step 2.2.4, scraping the concrete which exceeds the upper surface of the mould by adopting a scraper;
2.2.5, after the concrete pouring is finished for 4 hours, lifting the mould through a lifting handle for separating the mould from the hollow concrete interlocking precast block;
step 2.2.6, curing the separated hollow concrete interlocking precast block for 24 hours;
step 2.3, after the hollow concrete interlocking precast blocks are cured, grabbing a plurality of hollow concrete interlocking precast blocks from the supporting plate at one time by using a mechanical arm fixture, sequentially stacking and packing by using wood plates;
and 2.4, transporting the packaged hollow concrete interlocking precast blocks to a river slope construction site.
Further, step 3 the setting up of the water retaining assembly comprises the following steps:
3.1, digging a water retaining component foundation pit at the position, higher than the water level surface, of the right end of the river side slope by adopting a backhoe excavator along a water retaining component foundation excavation line, wherein the bottom of the water retaining component foundation pit is a horizontal plane;
3.2, digging a foundation trench at the right end of the water retaining assembly foundation pit by using a pick, wherein the width of the foundation trench is 20cm, and the depth of the foundation trench is 1 m;
3.3, digging a foundation groove at the left end of the water retaining assembly foundation pit by using a pick, wherein the width of the foundation groove is 20cm, and the depth of the foundation groove is 1.5 m;
step 3.4, erecting a foundation trench steel reinforcement cage template in the foundation trench, wherein the top end of the foundation trench steel reinforcement cage template is exposed out of the right end of the foundation trench of the water retaining assembly;
step 3.5, vertically placing the foundation trench steel reinforcement cage into a foundation trench steel reinforcement cage template, grouting the foundation trench steel reinforcement cage template with the diameter of the steel reinforcement adopted as phi 6, adopting C25 concrete for grouting, and removing the foundation trench steel reinforcement cage template after curing for 28 hours to form a foundation trench support wall;
step 3.6, erecting a foundation trench steel reinforcement cage template in the foundation trench, wherein the top end of the foundation trench steel reinforcement cage template is exposed out of the left end of the water retaining component foundation pit;
step 3.7, vertically placing the foundation trench steel reinforcement cage into a foundation trench steel reinforcement cage template, wherein the diameter of a steel bar adopted by the foundation trench steel reinforcement cage is phi 6, grouting into the foundation trench steel reinforcement cage template, wherein C25 concrete is adopted for grouting, and after 28-hour curing, removing the foundation trench steel reinforcement cage template to form a foundation trench support wall;
and 3.8, erecting a plurality of support rods between the foundation trench support wall and the foundation trench support wall, wherein the distance between any two adjacent support rods in the plurality of support rods is the same, the left ends of the support rods are anchored with the foundation trench support wall, the right ends of the support rods are anchored with the foundation trench support wall, the left ends of the support rods are higher than the right ends of the support rods, and the support rods are made of angle steel.
Further, the step 4 of laying the geotextile comprises the following steps:
step 4.1, laying geotextiles in a direction parallel to a river channel, and overlapping adjacent geotextiles by 80 cm;
step 4.2, fixing the geotextile by using anchor rods, wherein the distance between the anchor rods is 1 m;
and 4.3, fixing the laid geotextile by using a U-shaped nail, wherein the U-shaped nail is arranged in a quincunx shape.
Further, the construction of the ecological concrete cushion layer in the step 5 comprises the following steps:
step 5.1, preparing an additive, namely mixing silicon dioxide, bauxite, ammonium nitrogen, a phosphate fertilizer and a potassium fertilizer to obtain the additive, wherein the mass ratio of the silicon dioxide to the aluminum source to the nitrogen source to the phosphorus source to the potassium source in the special additive is 2:2:1:0.5: 0.6;
step 5.2, preparing ecological concrete, and stirring and mixing 500 parts of stones with the particle size of 20mm, 150 parts of P42.5 cement, 5% of mud content, 80 parts of water and 7 parts of special additive for 20 minutes to ensure that each stone is wrapped by the cement to obtain the ecological concrete;
step 5.3, laying a plurality of anchor points in the construction range line of the riverway side slope, wherein the anchor points are arranged in a quincunx shape, and drilling an anchor hole at the position of each anchor point by adopting a puncher;
step 5.4, placing an anchor rod into each anchoring hole, wherein the distance between the bottom of each anchor rod and the bottom of each anchoring hole is 10cm, and the top of each anchor rod is exposed out of each anchoring hole by 10 cm;
step 5.5, placing the grouting pipe at the bottom of each anchoring hole while placing the anchor rod in each anchoring hole, and grouting until the anchoring holes are filled;
step 5.6, after curing for 10 hours, sequentially connecting the tops of a plurality of anchor rods in the horizontal direction and the vertical direction by adopting threaded steel wires respectively to form a river channel side slope support frame;
step 5.7, spraying the ecological concrete on the river channel side slope support frame by using a concrete spraying machine, and vibrating the ecological concrete tightly by using a concrete vibrating rod, wherein the vibrating time of each position is 5s, so as to form an ecological concrete cushion layer;
and 5.8, covering the ecological concrete cushion layer with a plastic film, and maintaining for 72 hours in a moisture-preserving manner.
Further, the step 6 of building the drainage ditch comprises the following steps:
step 6.1, excavating a drainage ditch foundation pit, excavating the drainage ditch foundation pit by adopting a backhoe excavator at a position, higher than the water level surface, of the bottom of the riverway side slope, wherein the bottom of the drainage ditch foundation pit is a horizontal plane;
step 6.2, building a drainage ditch template, building the drainage ditch template along two sides of a drainage ditch foundation pit, and fixedly arranging a plurality of plastic pipes in the drainage ditch template in a staggered manner, wherein two ends of each plastic pipe are respectively abutted against the drainage ditch template;
step 6.3, pouring concrete into the drainage ditch template, inserting a vibrating rod into the concrete for vibrating, and stopping vibrating when no bubbles overflow from the surface of the concrete;
step 6.4, pouring a drainage ditch bottom plate, and pouring concrete into a drainage ditch foundation pit after curing for 24 hours to form a drainage ditch bottom plate;
and 6.5, paving the plastic film against the inner wall of the drainage ditch, and extending and reserving 10cm of width at two sides of the drainage ditch.
Further, the release agent is composed of the following raw materials in parts by weight:
20 parts of aluminum powder, namely aluminum powder,
80 parts of water, namely adding 80 parts of water,
15 parts of graphene, namely 15 parts of graphene,
10 parts of polyethylene glycol,
25 parts of methyl silicone oil, namely 25 parts of,
12 parts of hydrogenated rosin methyl ester,
30 parts of glycerol, namely 30 parts of glycerol,
12 parts of calcium stearate.
Further, the manipulator clamp comprises a hanger, a steel wire rope and calipers used for being connected with the hollow interlocking precast blocks;
the calliper lower extreme is the kink, be equipped with the through-hole that holds wire rope and pass on the gallows, wire rope passes the through-hole, and the wire rope both ends are connected with the calliper upper end respectively, the chain prefabricated section middle part of cavity is equipped with the flower hole, the kink stretches into the flower hole and fixes with the chain prefabricated section card of cavity, the calliper upper end is pole portion, pole portion is 135 with the angle of buckling alpha of kink, the hoist still includes first buckle, the connecting hole has been seted up to the calliper upper end, the wire rope head end passes the connecting hole, and it is fixed with the wire rope head end through first buckle, the hoist still includes the second buckle, the wire rope of second buckle with the through-hole both sides.
Further, the concrete sprayer comprises a concrete mixer and a concrete sprayer, the concrete mixer conveys concrete to the sprayer body through a concrete conveying pump, a hopper of the sprayer body comprises a feeding hopper and a discharging hopper which are matched with each other, the feeding hopper and the discharging hopper are both of conical structures, a small opening end of the discharging hopper is connected to a feeding hole of the sprayer body, a small opening end of the feeding hopper is movably matched and arranged in a large opening end of the discharging hopper, a large opening end of the feeding hopper and a large opening end of the discharging hopper are both outwards connected with extension parts, a plurality of springs are circumferentially and equidistantly connected between the two extension parts, a vibrating motor is installed on the extension part of the feeding hopper, a screen device is installed at the large opening end of the feeding hopper in a matched manner, the screen device is hinged to the extension part of the feeding hopper, a balancing weight is arranged on the extension part of the feeding hopper, the balancing weight corresponds to the vibrating motor, and a handle is, the handle corresponds the setting with connecting portion, and screen cloth device includes the screen cloth, and screen cloth bottom edge is provided with the cooperation portion of movable fit in the big mouth end of feeding funnel, and screen cloth top edge is provided with the fender feed cylinder, and the side of keeping off the feed cylinder is provided with connecting portion, is provided with the mount pad in the extension portion of the feeding funnel that corresponds connecting portion, mount pad and connecting portion swing joint.
Compared with the prior art, the river side slope construction method has the following remarkable advantages:
according to the construction method of the river slope, the hollow concrete interlocking precast blocks are manufactured in a standardized manner, so that the construction progress can be accelerated, the construction quality can be ensured, and the construction efficiency can be improved.
According to the river slope construction method, the hollow concrete interlocking precast blocks are stacked to be paved on site from a production link according to the arrangement mode of on-site pavement, repeated arrangement times are simplified, and a manipulator clamp is used for clamping a plurality of blocks at a time to replace manual stacking and paving, so that the labor intensity of workers can be reduced, the working time is saved, the working efficiency is improved, and the production cost is reduced.
3, according to the construction method of the river channel side slope, the ecological concrete is prepared from the gravels and the cement, the particle size of the gravels is 10-20 mm, and no fine aggregate exists, so that a solid filter screen shape is formed, the slope body is permeable, the phenomenon that a closed slope protection structure is broken due to excessive siltation of the water body at the bottom is avoided, and meanwhile, the reverse filtration is carried out, namely, the soil is filtered from inside to outside, the soil is prevented from being carried out of the slope body by the water, the soil can be prevented from being carried out by the water flow, and the collapse is avoided. Meanwhile, the porosity is controlled by limiting the particle size of the broken stones, the concrete is more suitable for plant growth, meanwhile, the special additive is added to enhance the overall strength of the concrete and the performance of growing plants, and the concrete is more suitable for protecting riverways, mountain bodies and two side slopes of highways, has stable slope protection, prevents water and soil loss and river bank collapse, and particularly has a good defense effect on scouring of external forces such as flood, rainstorm and the like.
Compared with the existing mold which needs assembling and disassembling, the mold of the river slope construction method does not need to be assembled and disassembled circularly, the original mold stripping method is changed into the mold lifting method, the mold lifting time and the manufacturing period of the prefabricated part are greatly shortened, and the effect is high. According to on-site comparison, the efficacy of the hollow concrete interlocking precast block manufactured by the construction method for the riverway side slope can be improved by more than 200%.
According to the river slope construction method, the concrete is poured into the mold cavity twice, so that air bubbles in the hollow concrete interlocking precast block can be effectively removed, the stability of the internal structure of the hollow concrete interlocking precast block is guaranteed, and the quality of the hollow concrete interlocking precast block is guaranteed.
6, the manipulator clamp of the river slope construction method is a lifting appliance assembled by a hanger, a steel wire rope and a caliper which is formed by hinging two steel strips with bent lower ends, and has the advantages of simple structure and low manufacturing cost.
According to the river slope construction method, the demolding agent is prepared from hydrogenated rosin methyl ester, glycerol and calcium stearate, so that the demolding machine is good in using effect and not prone to decomposition.
Drawings
FIG. 1 is a schematic structural view of a concrete sprayer of the river slope construction method of the invention;
FIG. 2 is a schematic structural diagram of a mold for the river slope construction method of the present invention;
FIG. 3 is a schematic structural view of a water retaining assembly of the river slope construction method of the invention;
fig. 4 is a schematic structural view of a manipulator clamp of the river slope construction method of the invention.
Description of reference numerals:
1-river channel side slope; 2-water retaining components, 21-water retaining component foundation pits, 22-foundation grooves, 23-foundation groove support walls, 24-foundation grooves, 25-foundation groove support walls and 26-support rods; 3-water level; 4-the jet plane body; 5-feeding a hopper; 6-feeding a hopper; 7-an extension; 8-a balancing weight; 9-a screen device; 10-handle; 11-a connecting portion; 12-a vibration motor; 13-a spring; 14-concrete delivery pump; 15-concrete mixer; 300-a manipulator clamp, 31-a hanger, 32-a steel wire rope, 33-a first buckle, 34-a caliper, 341-a bending part, 342-a rod part, 35-a hollow concrete interlocking precast block, 36-a flower hole, 37-a second buckle and 38-a hook; 100-mould, 101-handle, 102-coaming, 103-clapboard and 104-mould cavity.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1 to 4, the river side slope construction method includes the following steps:
step 1.1, cleaning a river channel side slope 1, cleaning weeds on the river channel side slope 1 by using a mower, and removing broken stones and garbage on the river channel side slope 1 by using a rake;
step 1.2, measuring and lofting, namely measuring and lofting by adopting a total station, determining the construction range of the river channel side slope 1, and marking the construction range line of the river channel side slope 1 by adopting a white marking line;
step 1.3, determining an excavation line of the river channel side slope 1, and lofting the excavation line of the river channel side slope 1 on the river channel side slope 1 by adopting a stay wire according to a construction slope ratio value;
step 1.4, renovating a river channel side slope 1, and excavating in a construction range line of the river channel side slope 1 by adopting a backhoe excavator according to the excavation line of the river channel side slope 1 marked in the step 1.3;
step 1.5, repairing the river channel side slope 1, backfilling the missing part on the river channel side slope 1 by using earthwork during excavation, and tamping by using a frog tamper after backfilling;
step 2.1, manufacturing a mould 100 according to a design drawing of the hollow concrete interlocking precast block 35, wherein the mould 100 comprises enclosing plates 102, partition plates 103 and handles 101 which are fixed with each other, and the enclosing plates 102 and the partition plates 103 enclose a plurality of mould cavities 104 with openings at the upper end and the lower end;
step 2.2, producing the hollow concrete interlocking precast block 35 by using the mold 100 manufactured in the step 2.1:
step 2.2.1, washing the inner wall of the mold 100 by using tap water, after the water on the surface of the mold 100 is evaporated, squaring the mold 100 on a supporting plate, and coating a release agent on the side wall of the mold cavity 104;
step 2.2.2, pouring concrete into the mould cavity 104 to 1/3 of the mould cavity 104, inserting a vibrating rod into the concrete for vibrating, and stopping vibrating when no bubbles overflow from the surface of the concrete;
step 2.2.3, continuously pouring concrete into the mould cavity 104 until the whole mould cavity 104 is fully paved with the concrete, inserting the vibrating rod into the concrete again for vibrating, starting the dust absorption fan, cleaning dust generated in the vibrating process of the concrete, stopping vibrating when no obvious air bubbles overflow on the surface of the concrete, and closing the dust absorption fan;
step 2.2.4, scraping the concrete exceeding the upper surface of the mould 100 by using a scraper;
step 2.2.5, after the concrete pouring is finished for 4 hours, lifting the mould 100 through a lifting handle 101 for separating the mould 100 from the hollow concrete interlocking precast block 35;
step 2.2.6, curing the separated hollow concrete interlocking precast block 35 for 24 hours;
step 2.3, after the hollow concrete interlocking precast blocks 35 are cured, grabbing a plurality of hollow concrete interlocking precast blocks 35 from the supporting plate at one time by using a mechanical arm clamp 300, sequentially stacking, and packaging by using wood plates;
step 2.4, transporting the packaged hollow concrete interlocking precast blocks 35 to a construction site of the river channel side slope 1;
3.1, digging a water retaining component foundation pit 21 along a water retaining component foundation excavation line by using a backhoe excavator at a position, higher than the water level 3, of the right end of the river side slope 1, wherein the bottom of the water retaining component foundation pit 21 is a horizontal plane;
3.2, digging a base groove 22 at the right end of the water retaining assembly foundation pit 21 by using a pick, wherein the width of the base groove 22 is 20cm, and the depth of the base groove 22 is 1 m;
3.3, digging a foundation groove 24 at the left end of the water retaining assembly foundation pit 21 by using a pick, wherein the width of the foundation groove 24 is 20cm, and the depth of the foundation groove 24 is 1.5 m;
step 3.4, erecting a foundation trench steel reinforcement cage template in the foundation trench 22, wherein the top end of the foundation trench steel reinforcement cage template is exposed out of the right end of the water retaining component foundation pit 21;
step 3.5, vertically placing the foundation trench steel reinforcement cage into a foundation trench steel reinforcement cage template, grouting the foundation trench steel reinforcement cage template with the diameter of the steel reinforcement adopted as phi 6, adopting C25 concrete for grouting, and removing the foundation trench steel reinforcement cage template after curing for 28 hours to form a foundation trench support wall 23;
step 3.6, erecting a foundation trench steel reinforcement cage template in the foundation trench 24, wherein the top end of the foundation trench steel reinforcement cage template is exposed out of the left end of the water retaining component foundation pit 21;
step 3.7, vertically placing the foundation trench steel reinforcement cage into a foundation trench steel reinforcement cage template, wherein the diameter of a steel bar adopted by the foundation trench steel reinforcement cage is phi 6, grouting into the foundation trench steel reinforcement cage template, wherein C25 concrete is adopted for grouting, and after 28-hour curing, removing the foundation trench steel reinforcement cage template to form a foundation trench support wall 25;
step 3.8, erecting a plurality of support rods 26 between the foundation trench support wall 23 and the foundation trench support wall 25, wherein the distance between any two adjacent support rods 26 in the plurality of support rods 26 is the same, the left ends of the support rods 26 are anchored with the foundation trench support wall 25, the right ends of the support rods 26 are anchored with the foundation trench support wall 23, the left ends of the support rods 26 are higher than the right ends of the support rods 26, and the support rods 26 are made of angle steel;
step 4.1, laying geotextiles in a direction parallel to a river channel, and overlapping adjacent geotextiles by 80 cm;
step 4.2, fixing the geotextile by using anchor rods, wherein the distance between the anchor rods is 1 m;
step 4.3, fixing the laid geotextile by using a U-shaped nail, wherein the U-shaped nail is arranged in a quincunx shape;
step 5, ecological concrete cushion layer construction:
step 5.1, preparing an additive, namely mixing silicon dioxide, bauxite, ammonium nitrogen, a phosphate fertilizer and a potassium fertilizer to obtain the additive, wherein the mass ratio of the silicon dioxide to the aluminum source to the nitrogen source to the phosphorus source to the potassium source in the special additive is 2:2:1:0.5: 0.6;
step 5.2, preparing ecological concrete, and stirring and mixing 500 parts of stones with the particle size of 20mm, 150 parts of P42.5 cement, 5% of mud content, 80 parts of water and 7 parts of special additive for 20 minutes to ensure that each stone is wrapped by the cement to obtain the ecological concrete;
step 5.3, laying a plurality of anchor points in the construction range line of the river channel side slope 1, wherein the anchor points are arranged in a quincunx shape, and drilling an anchor hole at the position of each anchor point by adopting a puncher;
step 5.4, placing an anchor rod into each anchoring hole, wherein the distance between the bottom of each anchor rod and the bottom of each anchoring hole is 10cm, and the top of each anchor rod is exposed out of each anchoring hole by 10 cm;
step 5.5, placing the grouting pipe at the bottom of each anchoring hole while placing the anchor rod in each anchoring hole, and grouting until the anchoring holes are filled;
step 5.6, after curing for 10 hours, sequentially connecting the tops of a plurality of anchor rods in the horizontal direction and the vertical direction by adopting threaded steel wires respectively to form a river channel side slope 1 support frame;
step 5.7, spraying the ecological concrete on a river channel side slope 1 support frame by using a concrete sprayer, and vibrating the ecological concrete tightly by using a concrete vibrating rod, wherein the vibrating time of each position is 5s, so as to form an ecological concrete cushion layer;
step 5.8, covering the ecological concrete cushion layer with a plastic film, and maintaining for 72 hours in a moisture-preserving manner;
step 6.1, excavating a drainage ditch foundation pit, excavating the drainage ditch foundation pit by adopting a backhoe excavator at a position, higher than the water level surface 3, of the bottom of the river course side slope 1, wherein the bottom of the drainage ditch foundation pit is a horizontal plane;
step 6.2, building a drainage ditch template, building the drainage ditch template along two sides of a drainage ditch foundation pit, and fixedly arranging a plurality of plastic pipes in the drainage ditch template in a staggered manner, wherein two ends of each plastic pipe are respectively abutted against the drainage ditch template;
step 6.3, pouring concrete into the drainage ditch template, inserting a vibrating rod into the concrete for vibrating, and stopping vibrating when no bubbles overflow from the surface of the concrete;
step 6.4, pouring a drainage ditch bottom plate, and pouring concrete into a drainage ditch foundation pit after curing for 24 hours to form a drainage ditch bottom plate;
6.5, paving the plastic film against the inner wall of the drainage ditch, and extending and reserving 10cm of width at two sides of the drainage ditch;
step 7.1, grabbing the hollow concrete interlocking precast blocks 35 by using the manipulator clamp 300 for paving, and grabbing four hollow concrete interlocking precast blocks 35 by using the manipulator clamp 300 each time;
and 7.2, sequentially building the hollow concrete interlocking precast blocks 35 from bottom to top, and abutting the hollow concrete interlocking precast block 35 at the lowest layer against the outer side wall of the drainage ditch.
Further, the release agent is composed of the following raw materials in parts by weight:
20 parts of aluminum powder, namely aluminum powder,
80 parts of water, namely adding 80 parts of water,
15 parts of graphene, namely 15 parts of graphene,
10 parts of polyethylene glycol,
25 parts of methyl silicone oil, namely 25 parts of,
12 parts of hydrogenated rosin methyl ester,
30 parts of glycerol, namely 30 parts of glycerol,
12 parts of calcium stearate.
Further, as shown in fig. 4, the manipulator fixture 300 includes a hanger 31, a wire rope 32, and a caliper 34 for connecting with the hollow interlocking precast block; the lower end of the caliper 34 is a bending part 341, the hanger 31 is provided with a through hole for accommodating the steel wire rope 32 to pass through, the steel wire rope 32 passes through the through hole, and two ends of the steel wire rope 32 are respectively connected with the upper end of the caliper 34, the middle part of the hollow interlocking precast block is provided with a flower hole 36, the bending part 341 extends into the flower hole 36 to be clamped with the hollow interlocking precast block, the upper end of the caliper 34 is a rod part 342, the bending angle alpha of the rod part 342 and the bending part 341 is 135 degrees, the hanger further comprises a first buckle 33, the upper end of the caliper 34 is provided with a connecting hole, the head end of the steel wire rope 32 passes through the connecting hole and is fixed with the head end of the steel wire rope 32 through the first buckle 33, the hanger further comprises a second buckle 37, the second buckle 37 fixes the steel wire ropes 32 at two sides of the through hole, the upper end of the hanger 31 is fixedly provided with a hook 38, the number of the calipers 34 is, the caliper 34 is tighter and tighter under the action of gravity, so that the hollow concrete interlocking precast block 35 is ensured not to fall off.
Further, as shown in fig. 1, the concrete sprayer comprises a concrete mixer 15 and a concrete sprayer, the concrete mixer 15 conveys concrete to the sprayer body 4 through a concrete conveying pump 14, a hopper of the sprayer body 4 comprises an upper hopper 6 and a lower hopper 5 which are matched with each other, the upper hopper 6 and the lower hopper 5 are both in a conical structure, a small opening end of the lower hopper 5 is connected to a feed port of the sprayer body 4, a small opening end of the upper hopper 6 is movably matched and arranged in a large opening end of the lower hopper 5, a large opening end of the upper hopper 6 and a large opening end of the lower hopper 5 are both connected with an extension part 7 outwards, a plurality of springs 13 are circumferentially connected between the two extension parts 7 at equal intervals, a vibrating motor 12 is installed on the extension part 7 of the upper hopper 6, a screen device 9 is matched and installed on a large opening end of the upper hopper 6, the screen device 9 is hinged on the extension part 7 of the upper hopper 6, a balancing weight 8 is arranged on the extension part 7 of the upper, the balancing weight 8 corresponds to the vibrating motor 12, the handle 10 is arranged on the material blocking barrel, the handle 10 corresponds to the connecting part 11, the screen device 9 comprises a screen, the edge of the bottom of the screen is provided with a matching part which is movably matched in the large opening end of the feeding hopper 6, the edge of the top of the screen is provided with the material blocking barrel, the side surface of the material blocking barrel is provided with the connecting part 11, the extending part 7 of the feeding hopper 6 corresponding to the connecting part 11 is provided with a mounting seat which is movably connected with the connecting part 11 and used for conveying water, cement, sand, stone and the like to the concrete mixer 15 for fully mixing, the discharging height of the concrete mixer 15 is 1.5m, the discharging opening of the concrete mixer 15 is connected with a pipeline or conveying the concrete to the feeding device of the concrete conveying pump 14 through a corresponding conveying device, the outlet end of the concrete conveying pump 14 is connected with the pipeline, the outlet end of the, thereby convey the concrete to the concrete sprayer, vibrating motor 12 constantly vibrates, drive the vibration of feeding funnel 6, thereby the concrete falls into the concrete sprayer rapidly under vibrating motor 12's vibration, the building stones that thoughtlessly surpass screen cloth mesh diameter in the concrete are unqualified building stones, can't enter into the concrete sprayer, can only stay on the screen cloth, when unqualified building stones on the screen cloth accumulated a quantitative, equipment stop operation, it can to overturn screen device 9 around the mount pad rotation and fall off unqualified building stones, then recover screen device 9, continue the operation, the concrete that enters into the concrete sprayer, spout through the nozzle, cover on the slope.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and various modifications and changes can be made by those skilled in the art without departing from the spirit and principle of the present invention, and any modifications, equivalents, improvements, etc. should be included in the scope of the claims of the present invention.
Claims (10)
1. A river course side slope construction method is characterized by comprising the following steps:
step 1, construction preparation, namely cleaning broken stone sundries on a river channel side slope and finishing the slope surface of the river channel side slope;
step 2, producing a hollow concrete interlocking precast block;
step 3, erecting a water retaining assembly for protecting water resources and construction safety;
step 4, laying geotextile;
step 5, constructing an ecological concrete cushion;
step 6, constructing a drainage ditch;
step 7, building the hollow concrete interlocking precast block:
step 7.1, grabbing the hollow concrete interlocking precast blocks by using a mechanical arm fixture for paving, and grabbing four hollow concrete interlocking precast blocks by using the mechanical arm fixture each time;
and 7.2, sequentially building the hollow concrete interlocking precast blocks from bottom to top, and abutting the lowermost hollow concrete interlocking precast block against the outer side wall of the drainage ditch.
2. The method for constructing a riverway side slope according to claim 1, wherein the construction preparation of step 1 comprises the following steps:
step 1.1, cleaning a river channel side slope, cleaning weeds on the river channel side slope by using a mower, and cleaning broken stones and garbage on the river channel side slope by using a rake;
step 1.2, measuring and lofting, namely measuring and lofting by adopting a total station, determining the construction range of the river channel side slope, and marking the construction range line of the river channel side slope by adopting a white marking line;
step 1.3, determining a river channel side slope excavation line, and lofting the river channel side slope excavation line on the river channel side slope by adopting a stay wire according to a construction slope ratio value;
step 1.4, renovating the river channel side slope, and excavating in the construction range line of the river channel side slope by adopting a back-hoe excavator according to the river channel side slope excavation line marked in the step 1.3;
and step 1.5, repairing the river channel side slope, backfilling the missing part on the river channel side slope by using earthwork during excavation, and tamping by using a frog ramming machine after backfilling.
3. The riverway side slope construction method according to claim 1, wherein the step 2 of producing the hollow concrete interlocking precast block comprises the following steps:
step 2.1, manufacturing a mould according to a design drawing of the hollow concrete interlocking precast block, wherein the mould comprises a coaming, a clapboard and a handle which are fixed with each other, and the coaming and the clapboard enclose a plurality of mould cavities with openings at the upper end and the lower end;
step 2.2, producing the hollow concrete interlocking precast block by using the mould manufactured in the step 2.1:
step 2.2.1, washing the inner wall of the mold by using tap water, squaring the mold on a supporting plate after the water on the surface of the mold is evaporated, and coating a release agent on the side wall of a mold cavity;
step 2.2.2, pouring concrete into the mould cavity to 1/3 of the mould cavity, inserting a vibrating rod into the concrete for vibrating, and stopping vibrating when no bubbles overflow on the surface of the concrete;
step 2.2.3, continuously pouring concrete into the mould cavity until the concrete is fully paved in the whole mould cavity, inserting the vibrating rod into the concrete again for vibrating, starting the dust absorption fan, cleaning dust generated in the vibrating process of the concrete, stopping vibrating when no obvious bubbles overflow on the surface of the concrete, and closing the dust absorption fan;
step 2.2.4, scraping the concrete which exceeds the upper surface of the mould by adopting a scraper;
2.2.5, after the concrete pouring is finished for 4 hours, lifting the mould through a lifting handle for separating the mould from the hollow concrete interlocking precast block;
step 2.2.6, curing the separated hollow concrete interlocking precast block for 24 hours;
step 2.3, after the hollow concrete interlocking precast blocks are cured, grabbing a plurality of hollow concrete interlocking precast blocks from the supporting plate at one time by using a mechanical arm fixture, sequentially stacking and packing by using wood plates;
and 2.4, transporting the packaged hollow concrete interlocking precast blocks to a river slope construction site.
4. The riverway side slope construction method according to claim 1, wherein the step 3 of erecting the water retaining assembly comprises the following steps:
3.1, digging a water retaining component foundation pit at the position, higher than the water level surface, of the right end of the river side slope by adopting a backhoe excavator along a water retaining component foundation excavation line, wherein the bottom of the water retaining component foundation pit is a horizontal plane;
3.2, digging a foundation trench at the right end of the water retaining assembly foundation pit by using a pick, wherein the width of the foundation trench is 20cm, and the depth of the foundation trench is 1 m;
3.3, digging a foundation groove at the left end of the water retaining assembly foundation pit by using a pick, wherein the width of the foundation groove is 20cm, and the depth of the foundation groove is 1.5 m;
step 3.4, erecting a foundation trench steel reinforcement cage template in the foundation trench, wherein the top end of the foundation trench steel reinforcement cage template is exposed out of the right end of the foundation trench of the water retaining assembly;
step 3.5, vertically placing the foundation trench steel reinforcement cage into a foundation trench steel reinforcement cage template, grouting the foundation trench steel reinforcement cage template with the diameter of the steel reinforcement adopted as phi 6, adopting C25 concrete for grouting, and removing the foundation trench steel reinforcement cage template after curing for 28 hours to form a foundation trench support wall;
step 3.6, erecting a foundation trench steel reinforcement cage template in the foundation trench, wherein the top end of the foundation trench steel reinforcement cage template is exposed out of the left end of the water retaining component foundation pit;
step 3.7, vertically placing the foundation trench steel reinforcement cage into a foundation trench steel reinforcement cage template, wherein the diameter of a steel bar adopted by the foundation trench steel reinforcement cage is phi 6, grouting into the foundation trench steel reinforcement cage template, wherein C25 concrete is adopted for grouting, and after 28-hour curing, removing the foundation trench steel reinforcement cage template to form a foundation trench support wall;
and 3.8, erecting a plurality of support rods between the foundation trench support wall and the foundation trench support wall, wherein the distance between any two adjacent support rods in the plurality of support rods is the same, the left ends of the support rods are anchored with the foundation trench support wall, the right ends of the support rods are anchored with the foundation trench support wall, the left ends of the support rods are higher than the right ends of the support rods, and the support rods are made of angle steel.
5. The method for constructing a riverway side slope according to claim 1, wherein the step 4 of laying geotextile comprises the following steps:
step 4.1, laying geotextiles in a direction parallel to a river channel, and overlapping adjacent geotextiles by 80 cm;
step 4.2, fixing the geotextile by using anchor rods, wherein the distance between the anchor rods is 1 m;
and 4.3, fixing the laid geotextile by using a U-shaped nail, wherein the U-shaped nail is arranged in a quincunx shape.
6. The riverway side slope construction method according to claim 1, wherein the ecological concrete cushion construction of step 5 comprises the following steps:
step 5.1, preparing an additive, namely mixing silicon dioxide, bauxite, ammonium nitrogen, a phosphate fertilizer and a potassium fertilizer to obtain the additive, wherein the mass ratio of the silicon dioxide to the aluminum source to the nitrogen source to the phosphorus source to the potassium source in the special additive is 2:2:1:0.5: 0.6;
step 5.2, preparing ecological concrete, and stirring and mixing 500 parts of stones with the particle size of 20mm, 150 parts of P42.5 cement, 5% of mud content, 80 parts of water and 7 parts of special additive for 20 minutes to ensure that each stone is wrapped by the cement to obtain the ecological concrete;
step 5.3, laying a plurality of anchor points in the construction range line of the riverway side slope, wherein the anchor points are arranged in a quincunx shape, and drilling an anchor hole at the position of each anchor point by adopting a puncher;
step 5.4, placing an anchor rod into each anchoring hole, wherein the distance between the bottom of each anchor rod and the bottom of each anchoring hole is 10cm, and the top of each anchor rod is exposed out of each anchoring hole by 10 cm;
step 5.5, placing the grouting pipe at the bottom of each anchoring hole while placing the anchor rod in each anchoring hole, and grouting until the anchoring holes are filled;
step 5.6, after curing for 10 hours, sequentially connecting the tops of a plurality of anchor rods in the horizontal direction and the vertical direction by adopting threaded steel wires respectively to form a river channel side slope support frame;
step 5.7, spraying the ecological concrete on the river channel side slope support frame by using a concrete spraying machine, and vibrating the ecological concrete tightly by using a concrete vibrating rod, wherein the vibrating time of each position is 5s, so as to form an ecological concrete cushion layer;
and 5.8, covering the ecological concrete cushion layer with a plastic film, and maintaining for 72 hours in a moisture-preserving manner.
7. The riverway side slope construction method according to claim 1, wherein the step 6 of constructing the drainage ditch comprises the following steps:
step 6.1, excavating a drainage ditch foundation pit, excavating the drainage ditch foundation pit by adopting a backhoe excavator at a position, higher than the water level surface, of the bottom of the riverway side slope, wherein the bottom of the drainage ditch foundation pit is a horizontal plane;
step 6.2, building a drainage ditch template, building the drainage ditch template along two sides of a drainage ditch foundation pit, and fixedly arranging a plurality of plastic pipes in the drainage ditch template in a staggered manner, wherein two ends of each plastic pipe are respectively abutted against the drainage ditch template;
step 6.3, pouring concrete into the drainage ditch template, inserting a vibrating rod into the concrete for vibrating, and stopping vibrating when no bubbles overflow from the surface of the concrete;
step 6.4, pouring a drainage ditch bottom plate, and pouring concrete into a drainage ditch foundation pit after curing for 24 hours to form a drainage ditch bottom plate;
and 6.5, paving the plastic film against the inner wall of the drainage ditch, and extending and reserving 10cm of width at two sides of the drainage ditch.
8. The riverway side slope construction method according to claim 3, wherein the release agent is prepared from the following raw materials in parts by weight:
20 parts of aluminum powder, namely aluminum powder,
80 parts of water, namely adding 80 parts of water,
15 parts of graphene, namely 15 parts of graphene,
10 parts of polyethylene glycol,
25 parts of methyl silicone oil, namely 25 parts of,
12 parts of hydrogenated rosin methyl ester,
30 parts of glycerol, namely 30 parts of glycerol,
12 parts of calcium stearate.
9. The riverway side slope construction method according to claim 3, wherein the manipulator comprises a hanger, a steel wire rope and a caliper for connecting the hollow interlocking precast block;
the calliper lower extreme is the kink, be equipped with the through-hole that holds wire rope and pass on the gallows, wire rope passes the through-hole, and the wire rope both ends are connected with the calliper upper end respectively, the chain prefabricated section middle part of cavity is equipped with the flower hole, the kink stretches into the flower hole and fixes with the chain prefabricated section card of cavity, the calliper upper end is pole portion, pole portion is 135 with the angle of buckling alpha of kink, the hoist still includes first buckle, the connecting hole has been seted up to the calliper upper end, the wire rope head end passes the connecting hole, and it is fixed with the wire rope head end through first buckle, the hoist still includes the second buckle, the wire rope of second buckle with the through-hole both sides.
10. The riverway side slope construction method according to claim 6, wherein the concrete sprayer comprises an earth mixer and a concrete sprayer, the earth mixer conveys earth to the sprayer body through an earth conveying pump, a hopper of the sprayer body comprises an upper hopper and a lower hopper which are matched with each other, the upper hopper and the lower hopper are both in a conical structure, a small opening end of the lower hopper is connected to a feed inlet of the sprayer body, the small opening end of the upper hopper is movably matched and arranged in a large opening end of the lower hopper, the large opening end of the upper hopper and the large opening end of the lower hopper are both outwards connected with extension parts, a plurality of springs are circumferentially connected between the two extension parts at equal intervals, a vibrating motor is arranged on the extension part of the upper hopper, a screen device is matched and arranged at the large opening end of the upper hopper, the screen device is hinged to the extension part of the upper hopper, and a balancing weight is arranged on the extension part of the upper hopper, the balancing weight corresponds each other with vibrating motor, keeps off and is provided with the handle on the feed cylinder, and the handle corresponds the setting with connecting portion, and screen cloth device includes the screen cloth, and screen cloth bottom edge is provided with the cooperation portion of clearance fit in the big mouth end of feeding funnel, and screen cloth top edge is provided with and keeps off the feed cylinder, and the side of keeping off the feed cylinder is provided with connecting portion, is provided with the mount pad in the extension portion of the feeding funnel that corresponds connecting portion, mount pad and connecting portion swing joint.
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| CN114293511A (en) * | 2022-01-28 | 2022-04-08 | 中园园林股份有限公司 | Construction method for mechanically lining slope protection by precast concrete locking block |
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| CN111996988B (en) | 2022-04-12 |
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