CN115652937A - Mobile high-precision underwater layered sand laying control construction method - Google Patents
Mobile high-precision underwater layered sand laying control construction method Download PDFInfo
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- CN115652937A CN115652937A CN202211340757.6A CN202211340757A CN115652937A CN 115652937 A CN115652937 A CN 115652937A CN 202211340757 A CN202211340757 A CN 202211340757A CN 115652937 A CN115652937 A CN 115652937A
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- 239000004576 sand Substances 0.000 title claims abstract description 161
- 238000010276 construction Methods 0.000 title claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims description 18
- 230000007480 spreading Effects 0.000 claims description 18
- 238000003892 spreading Methods 0.000 claims description 18
- 241000196324 Embryophyta Species 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 239000003864 humus Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 230000003373 anti-fouling effect Effects 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 230000035699 permeability Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
The invention relates to the technical field of underwater sanding, in particular to a movable high-precision underwater layered sanding control construction method, which utilizes a belt sand carrier to supply sand to a pump sand carrier through a belt bridge frame of the belt sand carrier, the pump sand carrier is connected with a sanding barge through a pipeline, sand in a cabin is pumped to the sanding barge according to the proportion of 35 to 40 percent of sand water, the sanding barge moves according to a preset moving route and parameters to sand a construction area, and the effect of accurate sanding can be achieved.
Description
Technical Field
The invention relates to the technical field of underwater sanding, in particular to a movable high-precision underwater layered sanding control construction method.
Background
The underwater sand laying is a novel construction process in the water conservancy industry, the effects of sand laying cushions in various projects are different, the main content of the design is also different, the sand laying cushions are paved on the top surfaces of soft soil layers and mainly play a role in shallow horizontal drainage to accelerate the drainage consolidation of the soft soil layers, the drainage surfaces provided by the sand cushions can not only ensure that the pore water pressure under the foundation is quickly dissipated to avoid the plastic damage of foundation soil, but also can accelerate the consolidation and the strength improvement of the soft soil under the sand cushions, the sand cushions are directly laid on the original mud surface of silt substrate in a layering mode to prevent the silt from arching to form silt bags, and in the construction of deep cement stirring composite foundations, the sand cushions can provide a covering layer for deep cement stirring piles to prevent mud from directly overflowing in the piling process.
However, the difficulty of underwater sand spreading is that the construction machinery is a ship or is supported and carried by the ship, the operation point is underwater, the bottom of an operation river channel is uneven, the bottom of the river channel is provided with pits and the like, and therefore the problems of low flatness and low laying precision of a laid sand layer can occur after sand spreading of the river channel is completed.
Therefore, it is necessary to invent a mobile high-precision underwater layered sanding control construction method to solve the above problems.
Disclosure of Invention
In order to solve the above problems, the present invention provides the following technical solutions: a movable high-precision underwater layered sand laying control construction method comprises the following steps;
step one, construction preparation: performing partition and layered planning on a construction area, and cleaning, leveling and compacting surface weeds, impurities, humus sand, tree roots and the like in the range;
step two, positioning equipment: the sand paving equipment is moved into a construction area to be anchored and positioned;
step three, routing planning: planning a moving route of the sand paving equipment in a construction area and construction parameters of the construction equipment;
step four, dividing and laying bags: paving the fine sand filled cutting bags in sequence according to the edges of the areas divided in the first step by using a paving ship;
step five, construction: the sand paving equipment starts to construct and pave a sand layer according to the movement route planned in the third step and the construction parameters;
step six, detection: detecting the thickness and the flatness of the sand layer paved in the fifth step, paving the next sand layer if the sand layer is qualified, and re-adjusting the moving route of the construction equipment and the parameters of the construction equipment to perform additional paving if the sand layer is not qualified;
seventhly, multilayer construction: repeating the second step to the sixth step for multiple times to lay the multilayer;
step eight, acceptance and delivery: and after the seventh step, checking and checking the sand layer paved with multiple layers, and delivering the sand layer to be qualified.
Preferably, the cleaning thickness in the step one is not less than 0.3m, and the cleaned waste residue needs to be treated in an environment-friendly way, namely, the cleaned waste residue is transported to a waste material plant by adopting transportation equipment.
Preferably, the sanding device in the second step includes a sanding barge, a sanding head of the sanding barge is designed to be inclined, a water inlet is formed in an outer wall of an upper side of the sanding head of the sanding barge, a drainage plate is fixedly connected to an outer wall of an upper side of the sanding head of the sanding barge and used for guiding water to an opening of the water inlet, a sealing plate is slidably connected to an outer wall of a lower side of the sanding head of the sanding barge and used for covering a sand outlet on the sanding head of the sanding barge, a spring is fixedly connected to a top of the sealing plate, and the other end of the spring is fixedly connected to a bottom of the drainage plate.
Preferably, when the sand layer is laid in the fifth step, the sand paving equipment pumps the sand material to the bottom of the construction area according to the sand-water ratio of 35% -40% for laying.
Preferably, the slope ratio quality requirement when constructing the sand-laying sand layer in the fifth step does not exceed 1.
Preferably, the construction equipment of the second step needs to be provided with an environmental protection frame at the front end thereof, and needs to be provided with a lifting double-layer antifouling curtain at the lower end thereof.
Preferably, when multiple layers of sand are paved in the seventh step, the sand paving width of the next layer is smaller than that of the previous layer, and the adjusted width is flexibly adjusted according to the width of the construction area.
Preferably, when the sand paving is carried out in the fifth construction step, the sand discharging height of the sand paving equipment needs to be flexibly adjusted according to water flow and sand diameter.
Preferably, the cutting bag in the fourth step is woven by adopting 220gg/m & lt 2 & gt woven cloth, the filling sand is fine sand with good water permeability, the particle size of the fine sand is larger than 0.075mm, and the filling content of the fine sand is larger than 85%.
The invention has the technical effects and advantages that:
1. the method comprises the steps that a belt sand carrier is used for supplying sand to a pump sand carrier through a belt bridge frame of the belt sand carrier, the pump sand carrier is connected with a sand spreading barge through a pipeline, sand in a cabin is pumped to the sand spreading barge according to the proportion of 35% -40% of sand water, the sand spreading barge moves according to a preset moving route and parameters to spread sand in a construction area, and the effect of accurate sand spreading can be achieved.
2. According to the method, the environmental protection frame is arranged at the front end of the sand paving equipment, and the liftable double-layer antifouling curtain is required to be arranged at the lower end of the construction equipment, so that the purposes of reducing water body pollution and reducing pollution damage to air, noise and aquatic organisms around a construction area are achieved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a schematic diagram of the sanding head of the sanding barge of the present invention.
In the figure: 1. a water inlet hole; 2. a drainage plate; 3. sealing plates; 4. a spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
As shown in fig. 1; a movable high-precision underwater layered sand laying control construction method comprises the following steps;
step one, construction preparation: performing partition and layered planning on a construction area, and cleaning, leveling and compacting surface weeds, impurities, humus sand, tree roots and the like in the range;
step two, positioning equipment: the sand paving equipment moves into a construction area to anchor and take place;
step three, routing planning: planning a moving route of the sand paving equipment in a construction area and construction parameters of the construction equipment;
step four, dividing and laying bags: paving the fine sand filled cutting bags in sequence according to the edges of the areas divided in the first step by using a paving ship;
step five, construction: the sand paving equipment starts to construct and pave a sand layer according to the movement route planned in the third step and the construction parameters;
step six, detection: detecting the thickness and the flatness of the sand layer paved in the fifth step, paving the next sand layer if the sand layer is qualified, and re-adjusting the moving route of the construction equipment and the parameters of the construction equipment to perform additional paving if the sand layer is not qualified;
step seven, multilayer construction: repeating the second step to the sixth step for multiple times to lay the multilayer;
step eight, acceptance and delivery: after the seventh step, checking and checking the sand layers paved with the plurality of layers, and delivering the sand layers to be qualified;
furthermore, before a sand layer is laid, a construction area needs to be desilted, the desilting thickness cannot be less than 0.3m, and the cleaned sludge, weeds, sundries, humus sand, tree roots and the like need to be transported to a material abandoning plant through a transport vehicle, so that the cleaned sundries are prevented from polluting the surrounding environment, and particularly the cleaned black and odorous sludge easily pollutes the surrounding environment. The construction area is segmented and partitioned after the construction area is cleaned, the subsequent partitioning is convenient to carry out sand laying, meanwhile, the partition belt is sequentially laid on the periphery of the area through a laying ship according to the planned area, a frame is formed, the sand grain diameter filled in the partition bag is larger than 0.075mm of fine sand, the filling amount is larger than 85%, the frame formed by the partition belt has excellent hydrophobicity, the preparation is carried out for subsequent sand laying, the problems of collapse, uneven thickness and the like of the edge of the subsequently laid sand layer can be prevented, meanwhile, the laying area of the sand layer can be accurately controlled during subsequent sand laying, then, the moving planning of sand laying equipment and the water depth and water flow planning of the running parameters during equipment laying are carried out according to the area of the partition, then, the belt sand ship is used for supplying sand to a pump sand ship through a belt bridge of the belt sand ship, the pump sand ship is connected with the sand laying barge through a pipeline, sand materials in the cabin are pumped to the sand barge according to the sand ratio of 35% -40%, the sand material in the sand barge is moved according to the preset moving route and the sand ship, the sand barge is required to be controlled when the sand laying quality of the sand layer is laid, when the sand barge is controlled at 1: after the first sand layer is paved, the thickness and the uniformity of the paved sand layer are detected through an elevation measuring instrument, if the first sand layer is unqualified, the sand layer needs to be paved, namely, paving is carried out on a defective area of the sand layer by using sand paving equipment, then the thickness and the flatness of the first sand layer are detected again, after the detection result is qualified, the steps are repeated, the sand paving equipment enters the construction area again, and paving of the second sand layer is repeated.
As shown in fig. 2; the sanding device in the second step comprises a sanding barge, wherein a sanding head of the sanding barge is obliquely designed, a water inlet hole 1 is formed in the outer wall of the upper side of the sanding head of the sanding barge, a drainage plate 2 is fixedly connected to the outer wall of the upper side of the sanding head of the sanding barge, the drainage plate 2 is used for guiding water to the opening of the water inlet hole 1, a sealing plate 3 is slidably connected to the outer wall of the lower side of the sanding head of the sanding barge, the sealing plate 3 can cover a sand outlet on the sanding head of the sanding barge, a spring 4 is fixedly connected to the top of the sealing plate 3, and the other end of the spring 4 is fixedly connected with the bottom of the drainage plate 2;
when the sealing plate is used, in order to prevent mortar from being discharged from a sanding head of a sanding barge to an underwater construction area, the mortar is blocked in the sanding head of the sanding barge, so that a water inlet hole 1 is formed in the upper side of the sanding head of the sanding barge, a flow guide plate 2 is fixedly connected to the outer wall of the sanding head, and in the process that the sanding head moves along with the sanding barge, water flow can enter the flow guide plate 2 and enter the inside of the sanding head along with the flow guide plate 2 to disperse sand inside the sanding head and drive the sand to be discharged from a sand outlet of the sanding head by inertia, so that the mortar is prevented from being blocked inside the sanding head, the sanding of the construction area is not uniform, in order to prevent the thickness of a sand layer of the sanding area from being non-uniform, when the height of the sand layer is high, the sealing plate 3 is in the process that the sanding head moves along with the sanding head, and rubs with the top of the thicker sand layer, so that the sealing plate 3 slides on the outer wall of the sanding head, thereby blocking the sanding head is blocked, the sand outlet of the sanding head is blocked by a thinner sealing plate, when the sand layer moves along with the sanding head, the sealing plate can not move to the lower sealing plate, and the lower sealing plate can not move along with the lower sealing plate, and the lower sealing plate, thereby preventing the sand bag from overflowing from flowing through the lower sand bag, and the sand bag.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A movable high-precision underwater layered sand laying control construction method is characterized in that: the method comprises the following steps;
step one, construction preparation: performing partition and layered planning on a construction area, and cleaning, leveling and compacting surface weeds, impurities, humus sand, tree roots and the like in the range;
step two, positioning equipment: the sand paving equipment is moved into a construction area to be anchored and positioned;
step three, routing planning: planning a moving route of the sand paving equipment in a construction area and construction parameters of the construction equipment;
step four, laying the cutting bags: using a laying ship to sequentially lay the cutting bags filled with the fine sand according to the edges of the areas cut by the first step;
step five, construction: the sand paving equipment starts to construct and pave a sand layer according to the movement route planned in the third step and the construction parameters;
step six, detection: detecting the thickness and the flatness of the sand layer paved in the fifth step, paving the next sand layer if the sand layer is qualified, and re-adjusting the moving route of the construction equipment and the parameters of the construction equipment to perform additional paving if the sand layer is not qualified;
seventhly, multilayer construction: repeating the second step to the sixth step for multiple times to lay the multilayer;
step eight, acceptance and delivery: and after the seventh step is finished, checking and detecting the sand layers paved with multiple layers, and delivering the sand layers to be qualified.
2. The mobile high-precision underwater layered sanding control construction method according to claim 1, characterized in that: and (3) cleaning thickness in the step one is not less than 0.3m, and the cleaned waste residues need to be subjected to environment-friendly treatment, namely, the cleaned waste residues are transported to a waste material plant by adopting transportation equipment.
3. The mobile high-precision underwater layered sanding control construction method according to claim 1, characterized in that: the sand spreading equipment in the second step comprises a sand spreading barge, the sand spreading head of the sand spreading barge is designed in an inclined mode, a water inlet hole (1) is formed in the outer wall of the upper side of the sand spreading head of the sand spreading barge, a drainage plate (2) is fixedly connected to the outer wall of the upper side of the sand spreading head of the sand spreading barge, the drainage plate (2) is used for guiding water to the opening of the water inlet hole (1), a sealing plate (3) is connected to the outer wall of the lower side of the sand spreading head of the sand spreading barge in a sliding mode, a sand outlet in the sand spreading head of the sand spreading barge can be covered by the sealing plate (3), a spring (4) is fixedly connected to the top of the sealing plate (3), and the other end of the spring (4) is fixedly connected with the bottom of the drainage plate (2).
4. The mobile high-precision underwater layered sand-laying control construction method according to claim 1, characterized in that: and when the sand layer is laid in the fifth step, the sand paving equipment pumps the sand material to the bottom of the construction area according to the sand-water ratio of 35-40% for laying.
5. The mobile high-precision underwater layered sand-laying control construction method according to claim 1, characterized in that: and step five, the slope ratio quality requirement when the sand layer is constructed in the step five is not more than 1.
6. The mobile high-precision underwater layered sand-laying control construction method according to claim 1, characterized in that: and step two, the construction equipment needs to be provided with an environment-friendly frame at the front end of the construction equipment, and a liftable double-layer antifouling curtain at the lower end of the construction equipment.
7. The mobile high-precision underwater layered sand-laying control construction method according to claim 1, characterized in that: and seventhly, when the multiple layers of sand are constructed and paved, the sand paving width of the next layer is smaller than that of the previous layer, and the adjusted width is flexibly adjusted according to the width of the construction area.
8. The mobile high-precision underwater layered sanding control construction method according to claim 1, characterized in that: and fifthly, during construction and sand paving, the sand discharge height of the sand paving equipment needs to be flexibly adjusted according to water flow and sand diameter.
9. The mobile high-precision underwater layered sanding control construction method according to claim 1, characterized in that: the cutting bag in the fourth step is woven by woven cloth of 220gg/m & lt 2 & gt, the filling sand is fine sand with good water permeability, the particle size of the fine sand is larger than 0.075mm, and the filling content of the fine sand is larger than 85%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211340757.6A CN115652937A (en) | 2022-10-29 | 2022-10-29 | Mobile high-precision underwater layered sand laying control construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211340757.6A CN115652937A (en) | 2022-10-29 | 2022-10-29 | Mobile high-precision underwater layered sand laying control construction method |
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| Publication Number | Publication Date |
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| CN115652937A true CN115652937A (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211340757.6A Withdrawn CN115652937A (en) | 2022-10-29 | 2022-10-29 | Mobile high-precision underwater layered sand laying control construction method |
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| Country | Link |
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| CN (1) | CN115652937A (en) |
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2022
- 2022-10-29 CN CN202211340757.6A patent/CN115652937A/en not_active Withdrawn
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Application publication date: 20230131 |
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