CN109371910B - Ground-cushion height-filling protection and construction method - Google Patents
Ground-cushion height-filling protection and construction method Download PDFInfo
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- CN109371910B CN109371910B CN201811505608.4A CN201811505608A CN109371910B CN 109371910 B CN109371910 B CN 109371910B CN 201811505608 A CN201811505608 A CN 201811505608A CN 109371910 B CN109371910 B CN 109371910B
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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
- E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
- E02B3/123—Flexible prefabricated covering elements, e.g. mats, strips mainly consisting of stone, concrete or similar stony material
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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
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- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
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- Civil Engineering (AREA)
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
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Abstract
The invention relates to a ground cushion height filling protection and construction method, which comprises the following steps: the protection technology for high ecological water retention of sand, gravel and bedding land of the cultivated land in the reservoir area is based on a sliding track sand bedding cloth strickling and vibrating density system; based on a stereotyped hidden rail formwork dragging large-area concrete panel construction technology, a movable slope transverse formwork is provided with a movable slurry plate chute concrete casting system, a sliding type vibration and flattening platform is provided, and a movable manual operation platform is provided; based on the technology of a shaped rail sliding type template anti-impact tooth wall, a gate-type pouring strickling vibration system and an extension type vibration strickling beam are adopted; the prefabricated assembled combined type disassembly-free template anti-impact tooth wall effectively solves the problems that a traditional ground-filled high-sand cushion layer is poor in integrity, poor in compactness and complex in construction, slope concrete panels and retaining wall concrete pouring are complex in construction and potential quality safety hazards, the template installation and disassembly processes are complex, the engineering quantity is large and the like, is simple and easy to implement in the construction process, greatly improves the construction efficiency, and can be applied to actual engineering to obtain better technical and economic benefits.
Description
Technical Field
The invention relates to the field of hydraulic engineering, in particular to a ground-cushion height-filling protection and construction method, which is suitable for the construction of reservoir protection engineering, and especially is suitable for ecological protection construction which needs to ensure that cultivated land is not submerged by reservoir tail water.
Background
Since the 21 st century, especially the implementation of the western development strategy, a large number of high dam large storehouses have been built in the southwest region, and the construction technology of domestic hydroelectric engineering is becoming mature.
However, as the development progress of each drainage basin progresses to the middle and upper reaches, the problems of immigration and environmental protection are continuously highlighted, the problems become important factors for restricting the development progress of the hydropower engineering gradually, and in the influence objects of reservoir inundation, the immigration and the land are core elements, so that the immigration and production arrangement scheme is properly made, and the method is often decisive for the immigration arrangement work of the whole power station.
In development, limited by mountains and canyon terrains, land resources available for installing migrants are very limited, and heightening protection becomes one of important ways for local solution of migration and production installation of migrants. Although the prior construction achieves better construction effect under proper working conditions, the problems of lower construction efficiency, increased cost and the like caused by complex processes of template installation and disassembly and large work amount are often encountered in the construction of filling up the ground.
Disclosure of Invention
The invention aims to provide a construction method for ground-cushion high protection aiming at the problems in ground-cushion high-protection construction, which realizes the smooth construction of ground-cushion high protection by using a cultivated land gravel ground-cushion high ecological water retention protection technology, a sliding track-based sand cushion layer cloth scraping and vibrating system, a shaped hidden track-based dragging mold large-area concrete panel construction technology, a movable slope transverse template, a concrete casting system with a movable slurry-bearing plate chute, sliding vibration and flattening, a movable manual operation platform, a shaping track-based sliding template anti-tooth wall technology, a gate-type casting scraping and vibrating system, an extended vibration scraping beam and a prefabricated assembled combined type disassembly-free template anti-tooth wall.
In order to achieve any one of the above objects, the present invention provides a method for protecting and constructing a ground pad, comprising:
step one, excavating a soil body:
step two, construction of an anti-impact tooth wall template:
constructing a retaining wall concrete cushion, pre-burying a cushion pre-buried fixing piece in the retaining wall concrete cushion, installing a sliding track on the cushion pre-buried fixing piece after the retaining wall concrete cushion is maintained to reach certain strength, and installing a retaining wall side formwork on the sliding track;
alternatively, the first and second electrodes may be,
prefabricating a disassembly-free prefabricated template according to requirements in a prefabrication field, constructing a concrete cushion of a retaining wall on the construction field, reserving at least two cushion layer notches on the concrete cushion, embedding fixing screws in the cushion layer notches, installing the disassembly-free prefabricated template after the concrete cushion is cured to reach certain strength, and fixing the disassembly-free prefabricated template on the concrete cushion of the retaining wall by utilizing the three sides of the embedded fixing screws through a prefabricated template bottom plate;
step three, installing a scour protection tooth wall concrete pouring, vibrating and scraping device:
after the anti-impact tooth wall template is installed and checked, sliding door type string barrel frames are arranged on two sides of the side template of the retaining wall, a movable pouring string barrel is arranged on a sliding device of the sliding door type string barrel frames, and a concrete conveying pipe is connected to the movable pouring string barrel;
arranging a sliding door type vibrating frame in a vertical vibrating mode, wherein the sliding door type vibrating frame is arranged on side templates of two side retaining walls, the sliding door type vibrating frame comprises a moving rail which is vertically arranged and a vibrating rod which is connected with the sliding door type vibrating frame and can move up and down, and the vibrating rod moves up and down along the moving rail;
arranging sliding door type scraping frames on two sides of the retaining wall side formwork, wherein each sliding door type scraping frame comprises a connecting plate and an extensible vibrating scraping beam, the connecting plates are vertically arranged, and the connecting plates are arranged on the extensible vibrating scraping beam and are arranged between the retaining wall side formworks on two sides;
step four, pouring and maintaining concrete of the anti-impact tooth wall:
after the third step of installation is finished, concrete is poured, the concrete is poured through the movable pouring string barrel, vibrating and scraping are carried out while pouring, the concrete on the inner side is vibrated through a template external flat plate vibrator, the extending type vibrating scraping beam is scraped and stretched on the inner side, the scraping beam gradually contracts inwards as pouring is carried out, the concrete of the tooth wall is cured after pouring is finished, and the mold is removed after certain strength is reached;
step five, back filling sand and pebbles:
after the anti-scour tooth wall construction is finished, removing surface soil, and filling sand and pebbles on the removed surface soil (73);
step six, construction of the back water surface slope:
after the sand cobbles are backfilled, a trapezoidal protective main body is formed, the back water slope surface is leveled, and then geotextile, a sand cushion layer and precast concrete hexagonal blocks are paved;
seventhly, prefabricating the base and backfilling the cultivated soil:
after the construction of the backwater slope surface is finished, constructing a prefabricated base, and backfilling to form cultivated soil backfilling after the construction of the prefabricated base is finished;
step eight, construction of the upstream surface slope:
after the sand and pebble backfill is completed, forming a trapezoidal protective main body, leveling the water-facing slope, and then installing a longitudinal template, a chute concrete pouring system with a movable slurry baffle plate and a movable slope transverse template system; an elevation-adjustable sliding type correction hanging wire is slidably arranged on the longitudinal template, and the pouring height of the concrete panel on the water-facing side slope is controlled through the elevation-adjustable sliding type correction hanging wire;
ninth, concrete pavement construction:
and after the construction of the upstream surface slope and the downstream surface slope is finished, carrying out concrete pavement construction at the top position of the sand-gravel filling, and constructing prefabricated kerbs.
According to another aspect of the present invention, there is provided a bedding fill-up protection obtained by the above construction method.
The invention has the following characteristics and beneficial effects:
(1) the ground-cushion height-filling protection and construction method realizes effective utilization of land resources through ground-cushion height filling, and is beneficial to sustainable development.
(2) The protection and construction method for filling high soil by adopting the protection technology for filling high ecological water retention by using the sand, gravel and soil in the cultivated land in the reservoir area greatly reduces water and soil loss and is beneficial to the ecological green development of the reservoir area.
(3) According to the ground filling height protection and construction method, the sand cushion cloth leveling and vibrating system based on the sliding track is adopted for laying the back slope cushion, manpower is saved through track traction and winding, the construction efficiency is greatly improved, and the cost is saved; the bed course uses the mode that scraper blade and flat plate vibrator combined together to effectively improve the roughness and the closely knit degree of sand bed course.
(4) The concrete stereotyped template and the construction method adopt a movable slope transverse template system, and the transverse template is mechanically moved along the slope by the template slide rail, the drawing die walking mechanism and the drawing die winch, so that the slip form construction efficiency is effectively improved.
(5) The concrete stereotyped template and the construction method adopt a concrete pouring system with a movable slurry plate chute, the slurry baffle plate can freely move, the problem that the chute is blocked due to residual concrete in the chute can be solved, and the concrete chute can be cleaned in time.
(6) The concrete setting template and the construction method adopt sliding type vibration and flattening, so that automation of concrete vibration and flattening along the slope is realized, and the construction efficiency is improved; the movable manual operation platform can effectively solve the problems of potential quality and potential safety hazards in the panel pouring process.
(7) The anti-tooth stereotyped template and the construction method are based on the stereotyped rail sliding type template anti-tooth wall technology, so that the transverse sliding of the template on the side surface of the tooth wall is realized, the construction efficiency is improved, and the installation time of the template is saved.
(8) The anti-impact tooth forming template and the construction method adopt a gate-shaped pouring vibrating system, and the vibrating compactness of the retaining wall pouring concrete is ensured by the mode of combining the vibrating rod and the external flat plate vibrator.
(9) The anti-impact tooth stereotyped template and the construction method adopt the stretching type vibration leveling beam, and the vibration leveling beam can horizontally stretch along with the change of the casting section of the tooth wall, so that the leveling effect of the concrete casting of the tooth wall is ensured.
(10) The prefabricated disassembly-free template anti-impact tooth wall and the construction method adopt the prefabricated assembly combined type disassembly-free template anti-impact tooth wall, solve the problems of complex installation and disassembly processes and large engineering quantity of tooth wall templates, and greatly improve the template construction efficiency.
(11) The prefabricated disassembly-free template scour-prevention tooth wall is provided with the prefabricated plate vertical tooth-shaped rib columns, the prefabricated plate horizontal tooth-shaped rib beams and the prefabricated plate bottom connecting cross beam, and the installation and pouring integrity of tooth wall templates is effectively improved.
Drawings
Fig. 1 is a schematic diagram of the protection of high ecological water retention by sand and gravel bedding in reservoir farmland according to an embodiment of the invention.
Fig. 2 is a schematic view of the movement of a sliding hopper along a track according to an embodiment of the invention.
FIG. 3 is a schematic illustration of a sand bedding screed vibration according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a longitudinal form installation and chute casting configuration according to an embodiment of the present invention.
FIG. 5 is a schematic plan view of a concrete panel construction according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of a sizing rail sliding type anti-impact tooth wall formwork according to an embodiment of the invention.
Fig. 7 is a schematic structural view of a tooth wall moving string drum casting according to an embodiment of the invention.
Fig. 8 is a schematic view of a sliding door type vibration device according to an embodiment of the present invention.
Fig. 9 is a schematic view of a sliding door type screed according to an embodiment of the present invention.
Fig. 10 is a schematic structural view of a prefabricated combined disassembly-free anti-impact tooth wall template according to an embodiment of the invention.
Figure 11 is an interior plan view of an anti-gullet wall prefabricated form according to an embodiment of the present invention.
In the figure: 1-anti-scour tooth wall, 2-excavation line, 3-backfill soil, 4-sand gravel filling, 5-original ground line, 6-concrete panel, 7-prefabricated assembled curb stone, 8-concrete pavement, 9-protective guardrail, 10-impermeable geotextile, 11-sand cushion layer, 12-prefabricated block protection slope, 13-prefabricated base, 14-cultivated soil backfilling, 15-rail, 16-rail bottom plate, 17-fixed rib, 18-sliding distributing hopper, 19-cushion paving baffle, 20-cushion scraper, 21-flat vibrator, 22-traction winch, 23-longitudinal formwork, 24-sliding slope transverse formwork, 25-formwork inclined strut, 26-formwork fixed rib, 27-elevation adjustable sliding correction hanging line, 28-concrete pouring truck, 29-chute, 30-chute bottom slide rail, 31-chute sliding type transverse grout baffle, 32-concrete leveling vibrating beam, 33-channel steel, 34-grout baffle winch, 35-stratum boundary line, 36-template slide rail, 37-drawing traveling mechanism, 38-drawing winch, 39-mobile manual operation platform, 40-longitudinal template bolt, 41-retaining wall side template, 42-template reinforced steel frame, 43-template fixed bottom plate, 44-retaining wall concrete cushion layer, 45-cushion layer embedded fixing piece, 46-sliding track, 47-template top counter-drawing lug plate, 48-template top counter-drawing frame, 49-sliding door type string barrel frame, 50-mobile string barrel, 51-sliding door type vibrating frame, 52-vibrating rod, 53-sliding door type scraping frame, 54-stretching type vibrating scraping beam, 56-scraping beam large-size middle beam, 57-hanging beam small-size telescopic side beam, 58-side beam bottom plate, 59-fixing hole, 60-fixing bolt, 61-cushion layer notch, 62-detachment-free prefabricated template, 63-prefabricated template bottom plate, 64-fixing screw rod, 65-outer side integral double-side pressing plate, 66-inner side single-side pressing plate, 67-pouring groove mortar, 68-prefabricated plate vertical tooth-shaped rib column, 69-prefabricated plate horizontal tooth-shaped rib beam, 70-prefabricated plate bottom connecting cross beam, 71-prefabricated plate top clamping type bracing piece and 73-removing surface soil.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
The invention provides a ground cushion height filling protection method and a construction method thereof, wherein the ground cushion height filling protection method comprises the following steps:
step one, excavating a soil body:
and excavating corresponding soil bodies corresponding to the excavation line 2, wherein the excavation line 2 is arranged below the original ground line 5, the excavation line 2 is positioned on the stratum boundary line 35, and the soil bodies are excavated along the excavation line 2 to form a pit body.
Step two, construction of an anti-impact tooth wall template:
scheme one can be adopted: the retaining wall concrete cushion 44 is constructed firstly, the cushion layer embedded fixing piece 45 is embedded in the retaining wall concrete cushion 44, the sliding rail 46 is installed on the cushion layer embedded fixing piece 45 after the retaining wall concrete cushion 44 is maintained to reach certain strength, and the retaining wall side formwork 41 is installed on the sliding rail 46.
Wherein template PMKD 43 is set up under barricade side template 41, template PMKD 43 is fixed barricade side template 41 with barricade concrete cushion 44, barricade side template 41 peripheral hardware template strenghthened type steelframe 42, template strenghthened type steelframe 42 parallel arrangement in one side of barricade side template 41 to play the effect of strengthening and consolidating, the barricade side template 41 top of arranging both sides in separately is fixed with template top counter-pull lug plate 47, template top counter-pull frame 48, wherein the template top passes the barricade side template 41 of both sides and passes through template top counter-pull lug plate 47 is fixed, and the barricade side template 41 perpendicular to of wherein one side barricade concrete cushion 44, the barricade side template 41 of opposite side slope in barricade concrete cushion 44.
Or adopting a scheme two: prefabricating the non-dismantling prefabricated template 62 as required in a precast yard, constructing the retaining wall concrete cushion 44 in the construction site, reserving at least two cushion layer notches 61 on the concrete cushion 44, pre-burying fixing screws 64 in the cushion layer notches 61, installing the non-dismantling prefabricated template 62 after the concrete cushion 44 is cured to reach a certain strength, fixing the non-dismantling prefabricated template 62 on three sides by using the pre-burying fixing screws 64 through a prefabricated template bottom plate 63 to fix the non-dismantling prefabricated template on the retaining wall concrete cushion 44.
In addition, the exempt from to tear open prefabricated template 62 perpendicular to in the outside retaining wall concrete cushion 44 sets up, inboard exempt from to tear open prefabricated template 62 for retaining wall concrete cushion 44 slope sets up, the two sides of the bottom of the exempt from to tear open prefabricated template 62 in the outside set up the integral bilateral clamp plate 65 in the outside, the bottom unilateral of the exempt from to tear open prefabricated template 62 of inboard sets up inboard unilateral clamp plate 66, and it is right after the clamp plate is accomplished the grout is carried out to bed course notch 61, forms the grout groove mortar 67, with further guarantee exempt from to tear open the fixed stability of prefabricated template 62.
The prefabricated slab top clamping type supporting and pulling pieces 71 are arranged at the tops of the non-dismantling prefabricated formworks 62 at the outer sides and the inner sides, wherein the prefabricated slab top clamping type supporting and pulling pieces 71 extend upwards from the tops of the non-dismantling prefabricated formworks 62 and are perpendicular to the retaining wall concrete cushion 44, and the prefabricated slab top clamping type supporting and pulling pieces 71 penetrate through the prefabricated slab top clamping type supporting and pulling pieces 71 at the two sides to be connected with the non-dismantling prefabricated formworks 62 at the two sides.
It should be noted that the disassembly-free prefabricated formwork 62 comprises a prefabricated plate vertical tooth-shaped rib column 68 and a prefabricated plate horizontal tooth-shaped rib beam 69, wherein the prefabricated plate vertical tooth-shaped rib column 68 and the prefabricated plate horizontal tooth-shaped rib beam 69 are vertically arranged and connected, the disassembly-free prefabricated formworks 62 respectively arranged at two sides are connected through a prefabricated plate bottom connecting beam 70, the disassembly-free prefabricated formwork 62 at one side is inclined relative to the disassembly-free prefabricated formwork 62 at the other side, and the prefabricated plate bottom connecting beam 70 is connected with the disassembly-free prefabricated formworks 62 at two sides to form a triangular structure, so that the installation and pouring integrity of the tooth wall formwork is effectively improved.
Step three, installing a scour protection tooth wall concrete pouring, vibrating and scraping device:
after scour protection tooth wall template installation and inspection, set up sliding door type cluster barrel holder 49 in barricade side template 41 both sides, establish the portable string of a section of thick bamboo 50 of pouring on sliding door type cluster barrel holder 49 slider, the portable string of a section of thick bamboo 50 slidable of pouring sets up sliding door type cluster barrel holder 49 is gone up and is set up perpendicularly, and the portable string of a section of thick bamboo 50 of pouring links the concrete conveying pipe, the concrete conveying pipe past the portable concrete of pouring is carried in the string of a section of thick bamboo 50.
Particularly, retaining wall side form 41 is located in the space that sliding door type cluster barrel holder 49 formed, a cluster section of thick bamboo 50 sets up is pour to the movable type place between the retaining wall side form 41 of both sides in on the sliding door type cluster barrel holder 49, a cluster section of thick bamboo 50 is pour including an at least pouring section of thick bamboo to the movable type, sets up perpendicularly downwards in proper order, the concrete conveying pipe is located the top of a cluster section of thick bamboo 50 is pour to the movable type.
Arranging a sliding door type vibrating frame 51 in a vertical vibrating mode, wherein the sliding door type vibrating frame 51 is arranged on the side formworks 41 of the retaining walls at two sides, the sliding door type vibrating frame 51 further comprises a moving rail which is vertically arranged and a vibrating rod 52 which is connected with the sliding door type vibrating frame and can move up and down, the moving rail is arranged on the sliding door type vibrating frame 51 and is arranged between the side formworks 41 of the retaining walls at two sides, and the vibrating rod 52 moves up and down along the moving rail;
lie in that retaining wall side form 41 both sides set up sliding door type and scrape flat-frame 53, wherein sliding door type scrapes flat-frame 53 including the connecting plate of perpendicular setting and is provided with stretching type vibration and scrapes flat-beam 54, wherein the connecting plate sets up on stretching type vibration scrapes flat-beam 54 and places in between the retaining wall side form 41 of both sides.
The stretching type vibration leveling beam 54 comprises a leveling beam large-size middle beam 56, a leveling beam small-size telescopic side beam 57, side beam bottom plates 58, fixing holes 59 and fixing studs 60, wherein the leveling beam large-size middle beam 56 is connected to the connecting plate, the leveling beam small-size telescopic side beams 57 are arranged on two sides of the leveling beam large-size middle beam 56, the side beam bottom plates 58 are arranged at the bottom of the leveling beam large-size middle beam 56, at least two fixing holes 59 are formed in the leveling beam large-size middle beam 56, and the fixing studs 60 penetrate through the fixing holes 59 to fix the stretching type vibration leveling beam 54 and the stretching type vibration leveling beam 54.
Step four, pouring and maintaining concrete of the anti-impact tooth wall:
after the fourth step of installation, concrete is poured, the concrete is poured through the movable pouring string cylinder 50, vibrating and scraping are carried out while pouring, the inner side concrete is vibrated through the template external flat plate vibrator, the inner side is scraped and stretched to form the stretching type vibrating scraping beam 54, and the pouring gradually shrinks the scraping beam inwards. The tooth wall is made of C20 concrete, and the slope of the inclined surface of the tooth wall is 1: 0.3. And (5) maintaining the concrete of the tooth wall after the concrete pouring is finished, and removing the formwork after certain strength is reached.
Step five, back filling sand and pebbles:
after the anti-scour tooth wall construction is completed, the thickness of the removed surface soil 73 is about +/-0.5 m, then sand and gravel filling 4 is started, the filled sand and gravel filling 4 is arranged on the removed surface soil 73, the maximum sand and gravel particle size of sand and gravel is smaller than 30cm, the content of fine particles smaller than 5mm is smaller than 30%, the content of soil particles smaller than 0.075mm is smaller than 3%, organic matters such as weeds, tree roots and the like and humus are not required to be contained, a production test is carried out before construction, the layering thickness of soil and gravel is not larger than 50cm, and the relative density after rolling is not smaller than 0.7. Filling to the required height and gradient.
Step six, construction of the back water surface slope:
after the sand cobbles are backfilled, a trapezoidal protection main body is formed, the back water slope surface is leveled, 300g of impermeable geotextile 10, a 15cm sand cushion layer 11 and a 20cm thick M7.5 grouted C20 precast concrete hexagonal block are paved, and the slope of the back water surface is 1: 2.
The sand cushion layer 11 positioned on the back water slope surface is paved by a sliding track sand cushion layer cloth leveling and vibrating system.
The sliding rail sand cushion cloth scraping and vibrating system comprises a rail 15, a rail bottom plate 16 and a sliding cloth hopper 18.
The rails 15 are laid on the rail base plate 16 and fixed, and placed on the impermeable geotextile 10, as shown in fig. 2, the rail base plates 16 are arranged in parallel at intervals, the rails 15 are fixed on the rail base plate 16, and in one embodiment of the invention, the rails 15 are fixed by fixing ribs 17.
The sliding distributing hopper 18 is slidably disposed on the rails 15, and it is worth mentioning that the distance between the rails 15 is smaller than the width of the sliding distributing hopper 18. The sliding type material distributing bucket 18 is connected with a traction winch 22, and the traction winch 22 pulls the sliding type material distributing bucket 18 to distribute materials.
The sliding track sand cushion cloth leveling vibration compaction system additionally comprises a cushion paving baffle 19, a cushion scraper 20 and a flat vibrator 21.
After the sliding type material distributing hopper 18 finishes distributing materials, a bedding paving baffle 19 is paved on the sand cushion 11, wherein the bedding paving baffle 19 divides the slope surface of the back water, an opening is formed on the bedding paving baffle 19 for a flat vibrator 21 to pass through, and the flat vibrator 21 vibrates the sand cushion 11 with compact materials.
The sand cushion 11 is leveled by the cushion paving baffle 19 at a position corresponding to the sand cushion 11 by using a cushion scraper 20.
Seventhly, constructing a prefabricated base 13 and a cultivated soil backfill 14:
and after the construction of the backwater slope is finished, constructing the prefabricated base 13, wherein the prefabricated base 13 is made of C25 concrete and has the size of 0.3m multiplied by 0.6m, backfilling the prefabricated base 13 after the construction is finished to form cultivated soil backfill 14, and the height of the cultivated soil backfill 14 is 0.5 m.
Step eight, construction of the upstream surface slope:
after the sand and pebble backfill is completed, a trapezoidal protective main body is formed, the water-facing slope is leveled, and then a longitudinal formwork 23, a chute concrete pouring system with a movable slurry baffle plate and a movable slope transverse formwork system are installed.
The longitudinal formworks 23 are longitudinally arranged on the upstream surface slope, the adjacent longitudinal formworks 23 are connected through longitudinal formwork bolts 40, and formwork inclined brackets 25 are arranged on the outer sides of the longitudinal formworks 23 and are fixed through formwork fixing ribs 26. It should be noted that the formwork diagonal bracing frame 25 is triangular and is disposed outside the longitudinal formwork 23 to improve the stability of fixation.
The movable slope transverse formwork system comprises a sliding slope transverse formwork 24, formwork slide rails 36, a formwork traveling mechanism 37 and a formwork winch 38, wherein the sliding slope transverse formwork 24 is slidably arranged on the outer side of the longitudinal formwork 23 and transversely arranged relative to the longitudinal formwork 23.
Specifically, at least two template slide rails 36 are longitudinally arranged on two sides of the longitudinal template 23, the sliding slope transverse template 24 is arranged on the template slide rails 36 and stretches across the two sides of the template slide rails 36, wherein a drawing die travelling mechanism 37 is connected to the sliding slope transverse template 24, the drawing die travelling mechanism 37 is longitudinally arranged and connected with a drawing die winch 38, and the drawing die winch 38 can drive the sliding slope transverse template 24 to slide on the template slide rails 36 through the drawing die travelling mechanism 37, so that the transverse template can move along the slope, and the movable slope transverse template system is formed.
It should be noted that the drawing die walking mechanism 37 is designed as a longitudinally arranged guide rail and a rope arranged on the guide rail, one end of the rope is connected with the sliding slope transverse formwork 24, the other end of the rope is connected with the drawing die winch 38, and the drawing die winch 38 pulls the rope, so as to pull the sliding slope transverse formwork 24 to slide.
The concrete pouring system with the movable slurry blocking plate chute comprises a chute bottom sliding rail 30, a chute sliding type transverse slurry blocking plate 31 and a chute 29.
The chute bottom sliding rail 30 is longitudinally arranged on the upper surface of the longitudinal template 23, a chute sliding type transverse slurry baffle 31 is arranged on the chute bottom sliding rail 30, and the chute sliding type transverse slurry baffle 31 is transversely arranged relative to the longitudinal template 23 so as to baffle slurry.
The chute 29 is movably arranged on a slide rail 30 at the bottom of the chute by connecting a concrete pouring truck 28, and the chute 29 is moved to a pouring position by the concrete pouring truck 28 in the pouring process to form the chute concrete pouring system with the movable grout baffle.
In addition, concrete panel regularization template adopts slidingtype vibration and mode of flattening to realize along the slope concrete vibration automation of flattening, has improved the efficiency of construction, specifically, longitudinal formwork 23 is gone up the stride and is provided with concrete and strickles vibrating beam 32 off, concrete is strickleed off vibrating beam 32 and is fixed through channel-section steel 33 on template slide rail 36, constitute and strickle off the structure with the vibration.
In addition, a movable manual operation platform 39 is additionally arranged on the concrete panel forming formwork, specifically, a sliding groove is transversely arranged on the concrete panel forming formwork relative to the longitudinal formwork 23, the movable manual operation platform 39 is slidably arranged on the sliding groove and is arranged at the top end of the longitudinal formwork 23, and therefore potential quality and potential safety hazards in the panel pouring process can be effectively solved.
In addition, the longitudinal formwork 23 is slidably provided with an elevation-adjustable sliding type correction hanging wire 27, the elevation-adjustable sliding type correction hanging wire 27 is slidably arranged to correct the elevation, and the casting height of the concrete panel on the water-facing slope is controlled through the elevation-adjustable sliding type correction hanging wire 27. The upstream slope surface adopts C25 concrete, and the gradient of the upstream surface is 1: 2. When pouring on the water-facing slope surface and pouring start, the chute sliding type transverse pulp baffle 31 is opened; and when the pouring is finished, closing the chute sliding type transverse grout baffle 31, finally cleaning redundant concrete in the chute 29 through a grout baffle winch, and backfilling surface soil after the maintenance is finished.
Ninth, constructing a concrete pavement 8: and after the construction of the upstream surface slope and the downstream surface slope is finished, constructing a C25 concrete pavement 8 with the thickness of 20cm, constructing a prefabricated kerbstone 7 with the strength of C25 and installing a protective guardrail at the height of 91.2 m.
The top position of sand cobble fill 4 forms the both sides of concrete road surface 8 are provided with respectively protection guardrail 9 with prefabricated assembled curb 7, wherein protection guardrail 9 sets up in the one side that is close to the upstream surface domatic, prefabricated assembled curb 7 sets up in the one side that is close to the surface of a river domatic.
In addition, the invention also provides the ground-cushion height-filling protection obtained by the ground-cushion height-filling protection and construction method.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (10)
1. The construction method for filling up high protection of the ground is characterized by comprising the following steps:
step one, excavating a soil body:
step two, construction of an anti-impact tooth wall template:
constructing a retaining wall concrete cushion (44), pre-burying a cushion pre-buried fixing piece (45) in the retaining wall concrete cushion (44), installing a sliding track (46) on the cushion pre-buried fixing piece (45) after the retaining wall concrete cushion (44) is maintained to reach certain strength, and installing a retaining wall side formwork (41) on the sliding track (46);
step three, installing a scour protection tooth wall concrete pouring, vibrating and scraping device:
after the anti-scour tooth wall template is installed and checked, sliding door type string barrel frames (49) are arranged on two sides of the retaining wall side template (41), a movable pouring string barrel (50) is arranged on a sliding device of the sliding door type string barrel frames (49), and a concrete conveying pipe is connected to the movable pouring string barrel (50);
arranging a sliding door type vibrating frame (51) in a vertical vibrating mode, wherein the sliding door type vibrating frame (51) is arranged between retaining wall side templates (41) on two sides, the sliding door type vibrating frame (51) comprises a moving rail which is vertically arranged and a vibrating rod (52) which can move up and down and is connected with the moving rail, the moving rail is arranged on the sliding door type vibrating frame (51) and is arranged between the retaining wall side templates (41) on two sides, and the vibrating rod (52) moves up and down along the moving rail;
arranging sliding door type scraping frames (53) on two sides of the retaining wall side formwork (41), wherein each sliding door type scraping frame (53) comprises a connecting plate which is vertically arranged and an extended type vibration scraping beam (54), and the connecting plates are arranged on the extended type vibration scraping beams (54) and are arranged between the retaining wall side formworks (41) on two sides;
step four, pouring and maintaining concrete of the anti-impact tooth wall:
after the third step of installation is finished, concrete is poured, the concrete is poured through the movable pouring string cylinder (50), vibrating and scraping are carried out while pouring, wherein vibrating is carried out in a mode that a vibrating rod (52) is combined with an external flat vibrator, the inner side concrete is vibrated through a template external flat vibrator, the inner side scraping extends the stretching type vibrating scraping beam (54), the scraping beam is gradually contracted inwards as pouring is carried out, the concrete of the tooth wall is maintained after pouring is finished, and the mold is removed after certain strength is reached;
step five, back filling sand and pebbles:
after the anti-scour tooth wall construction is finished, removing surface soil (73), and filling sand and pebbles on the removed surface soil (73);
step six, construction of the back water surface slope:
after the sand cobbles are backfilled, a trapezoidal protective main body is formed, the back water slope surface is leveled, and then the seepage-proof geotextile (10), the sand cushion layer (11) and the precast concrete hexagonal blocks are paved respectively;
seventhly, prefabricating the base and backfilling the cultivated soil:
after the construction of the backwater slope surface is finished, constructing a prefabricated base, and after the construction of the prefabricated base (13) is finished, backfilling to form cultivated soil backfilling (14);
step eight, construction of the upstream surface slope:
after the sand and pebble backfill is completed, a trapezoidal protective main body is formed, the water-facing slope is leveled, and then a longitudinal formwork (23), a chute concrete pouring system with a movable slurry baffle and a movable slope transverse formwork system are installed; an elevation-adjustable sliding type correcting hanging wire (27) is slidably arranged on the longitudinal template (23), and the pouring height of the concrete panel on the water-facing surface slope is controlled through the elevation-adjustable sliding type correcting hanging wire (27);
ninth, the concrete pavement (8) is constructed:
and after the construction of the upstream surface slope and the downstream surface slope is finished, constructing a concrete pavement (8) at the top of the sand-gravel filling (4), and constructing a prefabricated kerbstone (7).
2. The construction method of ground-fill high protection according to claim 1,
in the second step, template fixing bottom plates (43) are arranged under the retaining wall side templates (41), the template fixing bottom plates (43) are fixed, the retaining wall side templates (41) and the retaining wall concrete cushion layers (44), template reinforced steel frames (42) are arranged outside the retaining wall side templates (41), and the top of the retaining wall side templates (41) which are arranged on two sides respectively are fixed through template top counter-pulling lug plates (47) and template top counter-pulling frames (48).
3. The construction method of ground-fill high protection according to claim 1,
in the sixth step, a sand cushion layer (11) on the back water slope surface is paved through a sliding rail sand cushion layer cloth scraping and compacting system, the sliding rail sand cushion layer cloth scraping and compacting system comprises a rail (15), a rail bottom plate (16), a sliding distributing hopper (18), a cushion paving baffle plate (19), a cushion scraping plate (20) and a flat vibrator (21), the rail (15) is paved on the rail bottom plate (16) and is fixed on the anti-seepage geotextile (10), the sliding distributing hopper (18) is slidably placed on the rail (15), the sliding distributing hopper (18) is connected with a traction winch (22), the traction winch (22) pulls the sliding distributing hopper (18) to distribute, and the cushion paving baffle plate (19) is paved on the sand cushion layer (11) after the sliding distributing hopper (18) finishes distributing, the sand cushion is characterized in that the back slope surface is divided by the cushion paving baffle (19), an opening is formed in the cushion paving baffle (19) to allow a flat vibrator (21) to penetrate through, and the position, corresponding to the sand cushion (11), of the cushion paving baffle (19) is leveled by using a cushion scraper (20) to flatten the sand cushion (11).
4. The construction method of ground-fill high protection according to claim 1,
in the eighth step, the longitudinal formworks (23) are longitudinally arranged on the upstream surface slope, the adjacent longitudinal formworks (23) are connected through longitudinal formwork bolts (40), and formwork inclined brackets (25) are arranged on the outer sides of the longitudinal formworks (23) and are fixed through formwork fixing ribs (26);
the movable slope transverse formwork system comprises a sliding slope transverse formwork (24), a formwork slide rail (36), a drawing die walking mechanism (37) and a drawing die winch (38), the sliding slope transverse formwork (24) is slidably arranged on the outer side of the longitudinal formwork (23), the drawing die walking mechanism (37) is connected to the sliding slope transverse formwork (24), and the drawing die walking mechanism (37) is longitudinally arranged and connected with the drawing die winch (38);
the concrete pouring system with the movable slurry blocking plate chute comprises a chute bottom sliding rail (30), a chute sliding type transverse slurry blocking plate (31) and a chute (29), wherein the chute bottom sliding rail (30) is longitudinally arranged on the upper surface of a longitudinal template (23), the chute sliding type transverse slurry blocking plate (31) is arranged on the chute bottom sliding rail (30), and the chute (29) is movably arranged on the chute bottom sliding rail (30) by being connected with a concrete pouring truck (28).
5. The construction method for filling up high protection of the ground is characterized by comprising the following steps:
step one, excavating a soil body:
step two, construction of an anti-impact tooth wall template:
prefabricating a disassembly-free prefabricated template (62) as required, constructing a retaining wall concrete cushion (44) on a construction site, reserving at least two cushion layer notches (61) on the retaining wall concrete cushion (44), pre-burying fixing screws (64) in the cushion layer notches (61), installing the disassembly-free prefabricated template (62) after the retaining wall concrete cushion (44) is maintained to reach certain strength, and fixing the disassembly-free prefabricated template (62) on the retaining wall concrete cushion (44) by utilizing the pre-buried fixing screws (64) for three sides through a prefabricated template bottom plate (63);
step three, installing a scour protection tooth wall concrete pouring, vibrating and scraping device:
after the anti-scour tooth wall template is installed and checked, sliding door type string barrel frames (49) are arranged on two sides of the retaining wall side template (41), a movable pouring string barrel (50) is arranged on a sliding device of the sliding door type string barrel frames (49), and a concrete conveying pipe is connected to the movable pouring string barrel (50);
arranging a sliding door type vibrating frame (51) in a vertical vibrating mode, wherein the sliding door type vibrating frame (51) is arranged between retaining wall side templates (41) on two sides, the sliding door type vibrating frame (51) comprises a moving rail which is vertically arranged and a vibrating rod (52) which can move up and down and is connected with the moving rail, the moving rail is arranged on the sliding door type vibrating frame (51) and is arranged between the retaining wall side templates (41) on two sides, and the vibrating rod (52) moves up and down along the moving rail;
arranging sliding door type scraping frames (53) on two sides of the retaining wall side formwork (41), wherein each sliding door type scraping frame (53) comprises a connecting plate which is vertically arranged and an extended type vibration scraping beam (54), and the connecting plates are arranged on the extended type vibration scraping beams (54) and are arranged between the retaining wall side formworks (41) on two sides;
step four, pouring and maintaining concrete of the anti-impact tooth wall:
after the third step of installation is finished, concrete is poured, the concrete is poured through the movable pouring string cylinder (50), vibrating and scraping are carried out while pouring, wherein vibrating is carried out in a mode that a vibrating rod (52) is combined with an external flat vibrator, the inner side concrete is vibrated through a template external flat vibrator, the inner side scraping extends the stretching type vibrating scraping beam (54), the scraping beam is gradually contracted inwards as pouring is carried out, the concrete of the tooth wall is maintained after pouring is finished, and the mold is removed after certain strength is reached;
step five, back filling sand and pebbles:
after the anti-scour tooth wall construction is finished, removing surface soil (73) is formed, and sand and pebbles are filled and filled (4) on the removing surface soil (73);
step six, construction of the back water surface slope:
after the sand cobbles are backfilled, a trapezoidal protective main body is formed, the back water slope surface is leveled, and then the seepage-proof geotextile (10), the sand cushion layer (11) and the precast concrete hexagonal blocks are paved respectively;
seventhly, prefabricating the base and backfilling the cultivated soil:
after the construction of the backwater slope surface is finished, constructing a prefabricated base, and after the construction of the prefabricated base (13) is finished, backfilling to form cultivated soil backfilling (14);
step eight, construction of the upstream surface slope:
after the sand and pebble backfill is completed, a trapezoidal protective main body is formed, the water-facing slope is leveled, and then a longitudinal formwork (23), a chute concrete pouring system with a movable slurry baffle and a movable slope transverse formwork system are installed; an elevation-adjustable sliding type correcting hanging wire (27) is slidably arranged on the longitudinal template (23), and the pouring height of the concrete panel on the water-facing surface slope is controlled through the elevation-adjustable sliding type correcting hanging wire (27);
ninth, the concrete pavement (8) is constructed:
and after the construction of the upstream surface slope and the downstream surface slope is finished, constructing a concrete pavement (8) at the top of the sand-gravel filling (4), and constructing a prefabricated kerbstone (7).
6. The construction method of ground-level fill protection according to claim 5,
in the middle of the step two, the prefabricated template of exempting from to tear open (62) the perpendicular to in the outside retaining wall concrete cushion (44) set up, inboard exempt from to tear open prefabricated template (62) for retaining wall concrete cushion (44) slope sets up, the bottom both sides of the prefabricated template of exempting from to tear open (62) in the outside set up the integral bilateral clamp plate in the outside (65), the bottom unilateral of inboard exempt from to tear open prefabricated template (62) sets up inboard unilateral clamp plate (66), and it is right after the clamp plate is accomplished the encapsulating is carried out in bed course notch (61), forms pouring groove mortar (67), all is provided with at the outside and inboard exempt from to tear open prefabricated template (62) top the prefabricated plate top card presss from both sides formula and props and draws piece (71), to drawing the prefabricated template of exempting from to.
7. The construction method of ground-level fill protection according to claim 5,
in the sixth step, a sand cushion layer (11) on the back water slope surface is paved through a sliding rail sand cushion layer cloth scraping and compacting system, the sliding rail sand cushion layer cloth scraping and compacting system comprises a rail (15), a rail bottom plate (16), a sliding distributing hopper (18), a cushion paving baffle plate (19), a cushion scraping plate (20) and a flat vibrator (21), the rail (15) is paved on the rail bottom plate (16) and is fixed on the anti-seepage geotextile (10), the sliding distributing hopper (18) is slidably placed on the rail (15), the sliding distributing hopper (18) is connected with a traction winch (22), the traction winch (22) pulls the sliding distributing hopper (18) to distribute, and the cushion paving baffle plate (19) is paved on the sand cushion layer (11) after the sliding distributing hopper (18) finishes distributing, the sand cushion is characterized in that the back slope surface is divided by the cushion paving baffle (19), an opening is formed in the cushion paving baffle (19) to allow a flat vibrator (21) to penetrate through, and the position, corresponding to the sand cushion (11), of the cushion paving baffle (19) is leveled by using a cushion scraper (20) to flatten the sand cushion (11).
8. The construction method for filling up high protection with ground according to claim 5, wherein in the eighth step, the longitudinal formworks (23) are longitudinally arranged on the upstream slope, the adjacent longitudinal formworks (23) are connected through longitudinal formwork bolts (40), formwork oblique brackets (25) are arranged on the outer sides of the longitudinal formworks (23) and are fixed through formwork fixing ribs (26);
the movable slope transverse formwork system comprises a sliding slope transverse formwork (24), a formwork slide rail (36), a drawing die walking mechanism (37) and a drawing die winch (38), the sliding slope transverse formwork (24) is slidably arranged on the outer side of the longitudinal formwork (23), the drawing die walking mechanism (37) is connected to the sliding slope transverse formwork (24), and the drawing die walking mechanism (37) is longitudinally arranged and connected with the drawing die winch (38);
the concrete pouring system with the movable slurry blocking plate chute comprises a chute bottom sliding rail (30), a chute sliding type transverse slurry blocking plate (31) and a chute (29), wherein the chute bottom sliding rail (30) is longitudinally arranged on the upper surface of a longitudinal template (23), the chute sliding type transverse slurry blocking plate (31) is arranged on the chute bottom sliding rail (30), and the chute (29) is movably arranged on the chute bottom sliding rail (30) by being connected with a concrete pouring truck (28).
9. The construction method of ground-level fill protection according to claim 5,
in the second step, the disassembly-free prefabricated template (62) comprises prefabricated plate vertical tooth-shaped rib columns (68) and prefabricated plate horizontal tooth-shaped rib beams (69), wherein the prefabricated plate vertical tooth-shaped rib columns (68) are vertically arranged and connected with the prefabricated plate horizontal tooth-shaped rib beams (69), and the disassembly-free prefabricated templates (62) respectively arranged at two sides are connected through prefabricated plate bottom connecting cross beams (70).
10. The ground-filled high protection is characterized by being constructed by the construction method of the ground-filled high protection as claimed in any one of claims 1 to 9.
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| CN110438944A (en) * | 2019-08-15 | 2019-11-12 | 中国水利水电第四工程局有限公司 | A kind of cushion pool antiarch shape big cross section drag mode formula concrete construction method |
| CN111074893B (en) * | 2019-12-25 | 2024-04-16 | 红河哈尼族彝族自治州水利水电工程地质勘察咨询规划研究院 | Construction system and construction method for concrete cushion layer of river dike and dyke |
| CN115030218B (en) * | 2022-07-12 | 2024-06-11 | 中电建十一局工程有限公司 | Concrete slab construction method for embedding rectangular tooth wall into inverted filter |
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