Temporary road construction method based on construction site muck

Abstract

The present invention relates to the technical field of temporary roads, and discloses a method for constructing temporary roads at construction sites based on slag, which includes the following construction steps: 1) using an excavator with a grille bucket to dig out stones and slag from a fill site, and separating the stones from the slag, using a crusher to crush the stones into stone powder and gravel, recycling the gravel, and storing the stone powder for standby use; 2) mixing and stirring the stone powder, slag, silicate cement clinker, desulfurized gypsum, sodium sulfate and water to form a mixture; 3) transporting the mixture to a construction site for paving, and forming a temporary road after the mixture is solidified. In this way, gravel and stone powder can be screened out from the fill site, and the gravel can be sold to a mixing station for recycling, thereby reducing the project cost; and the stone powder can be used as one of the raw materials for preparing the mixture, and the mixture is used to build a temporary road, thus recycling resources, improving resource utilization, and reducing costs.

Description

Technical Field

[0001] The invention patent relates to the technical field of temporary roads, specifically, to a temporary road construction method at a construction site based on slag. Background Art

[0002] With the development of economy, infrastructure sand and gravel, as a resource with huge economic value, has gradually attracted great attention from the government and society. At the same time, with the rapid development of society and economy, major engineering projects have increased dramatically, which has put forward a huge demand for sand and gravel resources, resulting in a shortage of sand and gravel in the market. At the same time, during the construction of the project, a large amount of slag is often excavated, and the treatment of this kind of slag has always been a major problem.

[0003] In the existing technology, most construction units believe that the slag and stones in the fill site have no great utilization value, and generally adopt such slag and stones as abandoned treatment. Such a large amount of untreated slag and stones are arbitrarily landfilled and treated. This treatment method not only occupies a large amount of land resources and pollutes the environment, but also is a huge waste of resources in today's resource-scarce world. Not only are they buried underground in vain, but they also have a great impact on the later construction of the site; or they are transported to the dock. This treatment method requires a large number of transportation vehicles, spends a lot of transportation costs, and increases construction costs. Therefore, there is an urgent need for a method to recycle the slag and stones in the fill site. Summary of the invention

[0004] The purpose of the present invention is to provide a temporary road construction method for a construction site based on slag, aiming to solve the problem in the prior art that slag and stone resources in a fill site are difficult to recycle.

[0005] The present invention is implemented in this way: a temporary road construction method based on construction sites of slag soil comprises the following construction steps:

[0006] 1) Use an excavator with a grille bucket to dig out stones and debris from the filling site, separate the stones from the debris, and use a crusher to crush the stones into stone powder and gravel. The gravel is recycled and the stone powder is stored for backup;

[0007] 2) Mixing and stirring the stone powder, slag, silicate cement clinker, desulfurized gypsum, sodium sulfate and water to form a mixture;

[0008] 3) The mixture is transported to the construction site for paving, and a temporary road is formed after the mixture is solidified.

[0009] Optionally, in terms of mass percentage, the mixture includes 80-82% slag, 9-11% stone powder, 4-6% Portland cement clinker, 2-4% desulfurized gypsum, 0.01-0.03% sodium sulfate and 30-40% water.

[0010] Optionally, in the construction step 2), the water body is first poured into a blender, and then slag, stone powder, silicate cement clinker, desulfurized gypsum and sodium sulfate are poured in proportion in sequence, and the water body, slag, stone powder, silicate cement clinker, desulfurized gypsum and sodium sulfate are mixed and stirred using the blender to form the mixture.

[0011] Optionally, in the construction step 2), the stirring speed of the stirrer during the stirring process is between 25 r / min and 30 r / min.

[0012] Optionally, the time for the agitator to mix and stir the water, slag, stone powder, Portland cement clinker, desulfurized gypsum and sodium sulfate is controlled between 3 minutes and 4 minutes.

[0013] Optionally, in the construction step 3), an excavator is used to level the construction site and remove debris, and a static pressure roller is used to flatten the construction site; a template is installed in the construction site, the template is enclosed to form an enclosed cavity, the mixture is poured into the enclosed cavity, and the mixture in the enclosed cavity is spread, and the mixture is solidified in the enclosed cavity to form the temporary road.

[0014] Optionally, in the construction step 3), the mixture is poured into an enclosed cavity, and after the mixture is spread, a vibrator is inserted into the mixture for vibrating; the vibrator moves along the spreading direction of the mixture, and the moving speed of the vibrator is between 1.2m / min and 1.5m / min.

[0015] Optionally, in the construction step 3), after the vibrator vibrates the mixture, the surface of the mixture is compacted, and after the mixture is solidified and there is no water seepage on the surface of the mixture, the surface of the mixture is polished and ground with a polishing machine and watered for curing until a set time, and then the formwork is removed, and the mixture forms the temporary road;

[0016] Along the length direction of the temporary road, vertical cutting is performed on the temporary road to form a plurality of slits, the slits run through the temporary road from top to bottom, and the plurality of slits are arranged at intervals along the length direction of the temporary road, with a spacing of 5m to 8m.

[0017] Optionally, the vibrator comprises a handheld terminal and a longitudinally arranged vibrating rod, handheld rods for handholding are respectively provided on both sides of the handheld terminal, and a driver is provided in the handheld terminal; the upper end of the vibrating rod is connected to the driver, the lower end of the vibrating rod is extended downward, and the driver drives the vibrating rod to vibrate;

[0018] The lower end of the vibrating rod is connected to a horizontally arranged vibrating piece, the lower end of the vibrating rod is connected to the middle of the vibrating piece, the front part of the vibrating piece is pointed, the rear part of the vibrating piece is forked to form two forked pieces, and a forked interval is formed between the two forked pieces; along the direction from front to back of the vibrating piece, the width of the vibrating piece gradually increases;

[0019] The upper surface of the vibrating piece is provided with a plurality of longitudinally arranged convex columns, the convex columns are sleeved with a collar that moves up and down along the convex columns, and the top of the convex columns is provided with an end that limits the collar from detaching upward from the convex columns;

[0020] In the construction step 3), after the mixture is spread in the enclosed cavity, the vibrating rod is inserted into the mixture, the vibrating plate abuts against the bottom of the enclosed cavity, and the vibrator is moved forward horizontally along the direction of the front of the vibrating plate; the vibrating rod drives the vibrating plate to vibrate in the mixture, and the ring moves up and down along the direction of the convex column.

[0021] Optionally, a hard bottom column and a plurality of elastic columns that are elastically deformed up and down are convexly provided on the lower surface of the vibrating piece, the length of the elastic column is longer than the length of the bottom column, and the lengths of the plurality of elastic columns are different; a stringing block that jumps up and down is provided between the forked intervals, and the two ends of the stringing block are elastically connected to the forked piece through springs respectively;

[0022] In the construction step 3), when the vibrating rod is inserted into the mixture, the elastic column abuts against the bottom of the enclosed cavity, and as the vibrating piece vibrates, the elastic column elastically deforms up and down, and the vibrating piece vibrates up and down. The bottom column limits the vibrating piece to the extreme position of downward vibration; the stringing block jumps up and down to vibrate the mixture.

[0023] Compared with the prior art, the temporary road construction method for a construction site based on slag provided by the present invention digs slag and stones from the fill site through a grille bucket, and screens the stones and slag. The stones are crushed into gravel and stone powder by a crusher, and gravel and stone powder can be screened out from the fill site. The gravel can be sold to a mixing station for recycling, thereby reducing the project cost; and the stone powder can be used as one of the raw materials for preparing a mixture, and the mixture is used to build a temporary road. In this way, resources are recycled and reused, resource utilization is improved, and costs are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a three-dimensional schematic diagram of the grille bucket provided by the present invention;

[0025] Figure 2 It is a front view schematic diagram of the template provided by the present invention;

[0026] Figure 3 It is a main schematic diagram of the temporary road provided by the present invention;

[0027] Figure 4 is a top view schematic diagram of a temporary road provided by the present invention;

[0028] Figure 5 It is a front view schematic diagram of the vibrator provided by the present invention;

[0029] Figure 6 The present invention provides Figure 5 Partial schematic diagram at point A in the middle. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] The implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0032] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0033] Reference Figure 1-6 The figure shows a preferred embodiment of the present invention.

[0034] The method for constructing a temporary road 400 on a construction site based on slag provided by the present invention comprises the following construction steps:

[0035] 1) Use an excavator with a grille bucket 100 to dig out stones and debris from the filling site, separate the stones from the debris, and use a crusher to crush the stones into stone powder and gravel. The gravel is recycled and the stone powder is stored for backup;

[0036] 2) Mix and stir the stone powder, slag, silicate cement clinker, desulfurized gypsum, sodium sulfate and water to form a mixture;

[0037] 3) The mixture is transported to the construction site for paving, and after the mixture is solidified, a temporary road 400 is formed.

[0038] The above-mentioned construction method of temporary road 400 based on construction site of slag provided herein, slag and stones are dug out from the filling site by means of the grille bucket 100, and the stones and slag are screened, and then the stones are crushed into gravel and stone powder by means of a crusher, and gravel and stone powder can be screened out from the filling site, and the gravel can be sold to a mixing station for recycling, thereby reducing the project cost; and the stone powder can be used as one of the raw materials for preparing the mixture, and the mixture is used for building the temporary road 400, thus, resources are recycled and reused, resource utilization rate is improved, and cost is reduced.

[0039] According to the percentage by mass, the mixture includes 80-82% slag, 9-11% stone powder, 4-6% silicate cement clinker, 2-4% desulfurized gypsum, 0.01-0.03% sodium sulfate and 30-40% water. Among them, the slag is granular, and its components, in addition to soil, are mainly gravel, bricks, gravel and fine particles. These materials have the characteristics of acid and alkali resistance, water resistance, permeability, large particles, poor plasticity, and not easy to deform. These properties determine that the slag will not die through the precipitation of time, but can be processed into new materials through artificial processing, turning waste into treasure.

[0040] Among them, the most abundant clinker mineral in silicate cement clinker is silicate compounds, whose main components are dicalcium silicate and tricalcium silicate, tricalcium aluminate and tetracalcium aluminoferrite; after water is added to silicate cement clinker, the calcium hydroxide produced in the hydration process reacts with silica to form hydrated calcium silicate through ion exchange, which can play an auxiliary role. When there are fewer clay components in the slag, this auxiliary role is more obvious, which is more helpful for the cement to play a stabilizing role.

[0041] Among them, desulfurized gypsum, as sulfate, can react with calcium hydroxide and aluminum-containing phases, the products of cement hydration, to form ettringite, which is continuously filled in the hardened slurry skeleton, increasing its density and improving mechanical properties. At the same time, as calcium hydroxide is continuously consumed, the cement hydration process is promoted.

[0042] Among them, the chemical name of sodium sulfate is sodium sulfate, which is a post-treatment desiccant. When sodium sulfate is added, the mixture has a large amount of sodium ions and sulfate ions, which react chemically with cement. Calcium hydroxide is a product of cement hydration and will continue to participate in the reaction in cement. Its content will gradually decrease over time until the reaction is complete, thereby improving the strength of cement soil. Due to the presence of a large amount of sodium ions, the reaction generates sodium aluminate, and at the same time reacts chemically with the free silicon dioxide in calcium hydroxide to generate albite. The sodium ions contained in albite exchange with the calcium ions in calcium hydroxide in equal amounts, thus forming a cement honeycomb aggregate structure, which makes the soil units firmly and tightly connected.

[0043] Therefore, based on the above, the mixture has good advantages in road construction, and is green, non-toxic, harmless and pollution-free.

[0044] In construction step 2), water is first poured into a blender, and then slag, stone powder, silicate cement clinker, desulfurized gypsum and sodium sulfate are poured in proportion in sequence, and the water, slag, stone powder, silicate cement clinker, desulfurized gypsum and sodium sulfate are mixed and stirred using a blender to form a mixture.

[0045] In construction step 2), the stirring speed of the stirrer is between 25r / min and 30r / min during the stirring process. Specifically, water is first poured into the stirrer, and then slag, stone powder, silicate cement clinker, desulfurized gypsum, and sodium sulfate are poured in proportion in sequence, and the stirring speed is 25r / min to 30r / min, so that the various materials can be mixed more evenly to form a mixture.

[0046] The time for the agitator to mix and stir the water, slag, stone powder, silicate cement clinker, desulfurized gypsum and sodium sulfate is controlled between 3 and 4 minutes. In this way, the various materials can be mixed evenly to form a mixture within 3 to 4 minutes of stirring.

[0047] In construction step 3), an excavator is used to level the construction site, remove debris, and a static pressure roller is used to flatten the construction site; a template 300 is installed in the construction site, the template 300 is enclosed to form an enclosure cavity 301, the mixture is poured into the enclosure cavity 301, and the mixture in the enclosure cavity 301 is spread, and the mixture is solidified in the enclosure cavity 301 to form a temporary road 400.

[0048] The site is leveled by an excavator and then flattened by a static pressure roller to ensure the flatness of the construction site, and an installation template 300 is arranged at the construction site. The installation template 300 can prevent the mixture from leaking out and allow the mixture to solidify in the enclosed cavity 301. After the mixture solidifies, a temporary road 400 is formed.

[0049] In construction step 3), the mixture is poured into the enclosed cavity 301, and after the mixture is spread, a vibrator 200 is inserted into the mixture for vibrating; the vibrator 200 moves along the spreading direction of the mixture, and the moving speed of the vibrator 200 is 1.2m / min to 1.5m / min. In this way, the vibrator 200 performs tamping, and the mixture spread in the enclosed cavity 301 is tightly combined, and the honeycomb surface of the mixture is eliminated, so as to improve its strength and ensure the quality of the temporary road 400.

[0050] In construction step 3), after the vibrator 200 vibrates the mixture, the surface of the mixture is compacted, and when the mixture is solidified and there is no water seepage on the surface of the mixture, the surface of the mixture is polished and grinded with a polisher and watered for curing until a set time, and then the template 300 is removed, and the mixture forms a temporary road 400.

[0051] Along the length direction of the temporary road 400, the temporary road 400 is cut vertically to form a plurality of slits 401, which penetrate the temporary road from top to bottom, and the plurality of slits 401 are arranged at intervals along the length direction of the temporary road 400, with a spacing of 5m to 8m. In this way, the surface of the mixture is smoothed by polishing with a polishing machine to avoid punctures and the like, and the temporary road 400 is cut to form a plurality of slits 401, which can prevent the road from being damaged due to thermal expansion and contraction.

[0052] The vibrator 200 includes a handheld end 201 and a longitudinally arranged vibrating rod 203. Handheld rods for holding are respectively provided on both sides of the handheld end 201, and a driver 202 is provided in the handheld end 201; the upper end of the vibrating rod 203 is connected to the driver 202, and the lower end of the vibrating rod 203 is extended downward, and the driver 202 drives the vibrating rod 203 to vibrate.

[0053] The lower end of the vibrating rod 203 is connected to the horizontally arranged vibrating piece 210, and the lower end of the vibrating rod 203 is connected to the middle part of the vibrating piece 210. The front part of the vibrating piece 210 is pointed, and the rear part of the vibrating piece 210 is forked to form two forked pieces 211, and a forked gap is formed between the two forked pieces 211; along the direction from front to back of the vibrating piece 210, the width of the vibrating piece 210 gradually increases.

[0054] The upper surface of the vibrating piece 210 is provided with a plurality of longitudinally arranged bosses 212 , on which the bosses 212 are sleeved with a ring 213 that moves up and down along the bosses 212 , and at the top of the bosses 212 there is an end that limits the ring 213 from detaching upward from the bosses 212 .

[0055] In construction step 3), after the mixture is spread in the enclosed cavity 301, the vibrating rod 203 is inserted into the mixture, the vibrating piece 210 abuts against the bottom of the enclosed cavity 301, and the vibrator 200 is moved forward horizontally along the direction of the front of the vibrating piece 210; the vibrating rod 203 drives the vibrating piece 210 to vibrate in the mixture, and the ring 213 moves up and down along the direction of the boss 212.

[0056] The vibrating rod 203 is driven to vibrate by the driver 202, and the vibrating rod 203 drives the vibrating piece 210 to vibrate, and is provided with a ring 213, which can move up and down on the convex column 212 to vibrate the mixture. In this way, the vibrator 200 can perform tamping, and the mixture spread in the enclosed cavity 301 is densely combined to eliminate the honeycombed surface of the mixture, so as to improve its strength and ensure the quality of the temporary road 400.

[0057] The lower surface of the vibrating piece 210 is provided with a hard bottom column 214 and a plurality of elastic columns 215 that are elastically deformed up and down. The length of the elastic column 215 is longer than that of the bottom column 214, and the lengths of the plurality of elastic columns 215 are different. A moving block 216 that jumps up and down is provided between the forked intervals, and the two ends of the moving block 216 are elastically connected to the forked piece 211 through springs 217 respectively.

[0058] In construction step 3), when the vibrating rod 203 is inserted into the mixture, the elastic column 215 abuts against the bottom of the enclosed cavity 301. As the vibrating piece 210 vibrates, the elastic column 215 elastically deforms up and down, and the vibrating piece 210 vibrates up and down. The bottom column 214 limits the extreme position of the downward vibration of the vibrating piece 210; the stringing block 216 jumps up and down to vibrate the mixture.

[0059] Since the elastic column 215 is arranged lower than the bottom column 214, the elastic column 215 is continuously elastically deformed during the up and down vibration, and the bottom column 214 limits the ultimate deformation of the elastic column 215. The bottom column 214 prevents the vibration plate from directly colliding with the bottom of the enclosed cavity 301. At the same time, the elastic column 215 is elastic, so that the elastic column 215 will not be damaged during the up and down vibration. At the same time, during the vibration process, the string block 216 jumps up and down to vibrate the mixture, and is accompanied by the vibration of the vibrating plate 210. In this way, the vibrator 200 can be compacted to tightly combine the mixture spread in the enclosed cavity 301, eliminate the honeycombed surface of the mixture and other phenomena, so as to improve its strength and ensure the quality of the temporary road 400.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A temporary road construction method for a construction site based on slag, characterized in that: The construction steps include: 1) Use an excavator with a grille bucket to dig out stones and debris from the filling site, separate the stones from the debris, and use a crusher to crush the stones into stone powder and gravel. The gravel is recycled and the stone powder is stored for backup; 2) Mixing and stirring the stone powder, slag, silicate cement clinker, desulfurized gypsum, sodium sulfate and water to form a mixture; 3) Transporting the mixture to the construction site for paving, and forming a temporary road after the mixture solidifies; In the construction step 3), an excavator is used to level the construction site, debris is removed, and a static pressure roller is used to flatten the construction site; a template is installed in the construction site, the template is enclosed to form an enclosure cavity, the mixture is poured into the enclosure cavity, and the mixture in the enclosure cavity is spread, and the mixture is solidified in the enclosure cavity to form the temporary road; In the construction step 3), the mixture is poured into the enclosed cavity, and after the mixture is spread, a vibrator is inserted into the mixture for vibrating; the vibrator moves along the spreading direction of the mixture, and the moving speed of the vibrator is 1.2m / min~1.5m / min; The vibrator comprises a handheld end and a longitudinally arranged vibrating rod, wherein handheld rods for handholding are respectively arranged on both sides of the handheld end, and a driver is arranged in the handheld end; the upper end of the vibrating rod is connected to the driver, and the lower end of the vibrating rod is arranged to extend downward, and the driver drives the vibrating rod to vibrate; The lower end of the vibrating rod is connected to a horizontally arranged vibrating piece, the lower end of the vibrating rod is connected to the middle of the vibrating piece, the front part of the vibrating piece is pointed, the rear part of the vibrating piece is forked to form two forked pieces, and a forked interval is formed between the two forked pieces; along the direction from front to back of the vibrating piece, the width of the vibrating piece gradually increases; The upper surface of the vibrating piece is provided with a plurality of longitudinally arranged convex columns, the convex columns are sleeved with a collar that moves up and down along the convex columns, and the top of the convex columns is provided with an end that limits the collar from detaching upward from the convex columns; In the construction step 3), after the mixture is spread in the enclosed cavity, the vibrating rod is inserted into the mixture, the vibrating piece abuts against the bottom of the enclosed cavity, and the vibrator is moved forward horizontally along the front direction of the vibrating piece; the vibrating rod drives the vibrating piece to vibrate in the mixture, and the sleeve moves up and down along the direction of the convex column; The lower surface of the vibrating piece is convexly provided with a hard bottom column and a plurality of elastic columns that are elastically deformed up and down, the length of the elastic column is longer than the length of the bottom column, and the lengths of the plurality of elastic columns are different; a stringing block that jumps up and down is provided between the forked intervals, and the two ends of the stringing block are elastically connected to the forked piece through springs respectively; In the construction step 3), when the vibrating rod is inserted into the mixture, the elastic column abuts against the bottom of the enclosed cavity, and as the vibrating piece vibrates, the elastic column elastically deforms up and down, and the vibrating piece vibrates up and down. The bottom column limits the vibrating piece to the extreme position of downward vibration; the stringing block jumps up and down to vibrate the mixture.

2. The temporary road construction method based on construction site muck as claimed in claim 1, characterized in that: In terms of mass percentage, the mixture includes 80% to 82% slag, 9% to 11% stone powder, 4% to 6% Portland cement clinker, 2% to 4% desulfurized gypsum, 0.01% to 0.03% sodium sulfate and 30% to 40% water.

3. The temporary road construction method based on construction site of slag as claimed in claim 1, characterized in that: In the construction step 2), the water is first poured into a blender, and then slag, stone powder, silicate cement clinker, desulfurized gypsum and sodium sulfate are poured in sequence according to proportion, and the water, slag, stone powder, silicate cement clinker, desulfurized gypsum and sodium sulfate are mixed and stirred using the blender to form the mixture.

4. The method for constructing a temporary road at a construction site based on slag as claimed in claim 3, characterized in that: In the construction step 2), the stirring speed of the stirrer during the stirring process is between 25 r / min and 30 r / min.

5. The method for constructing a temporary road at a construction site based on slag as claimed in claim 3, characterized in that: The time for the agitator to mix and stir the water, slag, stone powder, silicate cement clinker, desulfurized gypsum and sodium sulfate is controlled between 3 minutes and 4 minutes.

6. The temporary road construction method based on construction site muck according to any one of claims 1 to 5, characterized in that: In the construction step 3), after the vibrator vibrates the mixture, the surface of the mixture is compacted, and after the mixture is solidified and there is no water seepage on the surface of the mixture, the surface of the mixture is polished and ground with a polishing machine and watered for curing until a set time, and then the formwork is removed, and the mixture forms the temporary road; Along the length direction of the temporary road, vertical cutting is performed on the temporary road to form a plurality of slits, the slits run through the temporary road from top to bottom, and the plurality of slits are arranged at intervals along the length direction of the temporary road, with a spacing of 5m to 8m.

Images