CN210152587U - A mud circulation system for bored pile construction - Google Patents
A mud circulation system for bored pile construction Download PDFInfo
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- CN210152587U CN210152587U CN201920794848.4U CN201920794848U CN210152587U CN 210152587 U CN210152587 U CN 210152587U CN 201920794848 U CN201920794848 U CN 201920794848U CN 210152587 U CN210152587 U CN 210152587U
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Abstract
A slurry circulation system for bored pile construction relates to the field of bridge engineering foundation construction and comprises more than one bored platform, wherein a sand pump is fixedly arranged in a bored pile of the bored platform; the central mud pit comprises a pulping bin and a mud storage bin, the pulping bin is communicated with the mud storage bin at a position close to the upper surface, a mud separator is arranged above the pulping bin, and a mud pump is arranged in the mud storage bin; the pipeline system is connected with the drilling platform and the central mud pit and comprises a first mud pipe, a second mud pipe and a connecting pipe; when the slurry circulating system operates, slurry in the drilled pile is pumped out by the sand pump and reaches the slurry separator from the first slurry pipe to flow into the slurry making bin; the mud in the storage bin is pumped out by a mud pump and flows into the drilled pile from the second mud pipe. The utility model can not only greatly reduce the outward transportation amount of the slurry, save manpower and material resources and reduce the material cost; and the related environmental protection requirements can be met, so that the construction environment is cleaner.
Description
Technical Field
The utility model relates to a bridge engineering foundation construction field specifically is a mud circulation system for bored pile construction.
Background
In the urban development and construction process, more and more viaducts are built, and the regional environment related to the viaduct construction is more and more complex; meanwhile, in the construction process, the requirements of people on civilized construction are more and more strict. Especially, when the number of surrounding residents is large, the requirements of residents on safety, civilization and environmental protection are higher and higher.
The original in-situ mud circulation of the bored pile requires more than one mud pit to be arranged near each bored platform, with the following disadvantages:
1. the slurry is easy to spill and soil the ground, and the related environmental protection requirements are difficult to guarantee.
2. The original slurry outlet mode is adopted, the slurry needs to be transported outwards, the transporting quantity is large, more than ten slurry ponds welded by steel templates and a plurality of sand separators are often required to be arranged, and the investment of manpower and material resources is huge.
3. The original slurry discharging mode is adopted, slurry preparation is required to be carried out independently, a large amount of loess is required to be consumed, and the material cost is high.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a slurry circulating system for bored pile construction, which not only can greatly reduce the outward transportation amount of slurry, save manpower and material resources and reduce the material cost; and the related environmental protection requirements can be met, so that the construction environment is cleaner.
In order to achieve the purpose, the slurry circulating system for the construction of the drilled pile comprises more than one drilling platform, wherein a sand pump is fixedly arranged in the drilled pile of the drilling platform; the central mud pit comprises a pulping bin and a mud storage bin, the pulping bin is communicated with the mud storage bin at a position close to the upper surface, a mud separator is arranged above the pulping bin, and a mud pump is arranged in the mud storage bin; the pipeline system is connected with the drilling platform and the central mud pit and comprises a first mud pipe, a second mud pipe and a connecting pipe; the sand pump and the mud separator are connected in parallel with the first slurry pipe through connecting pipes, and the mud pump and the drilled pile are connected in parallel with the second slurry pipe through connecting pipes; a plurality of valves are arranged on the first slurry pipe, the second slurry pipe and the connecting pipe; when the slurry circulating system operates, slurry in the drilled pile is pumped out by the sand pump and reaches the slurry separator from the first slurry pipe to flow into the slurry making bin; the mud in the storage bin is pumped out by a mud pump and flows into the drilled pile from the second mud pipe.
Preferably, when the mud circulation system is in operation, part of the valves are opened, so that the pipeline between the sand pump and the mud separator and the pipeline between the mud pump and the drilled pile are communicated; the rest valves are closed to seal the rest pipelines.
Preferably, a branch valve is arranged on a connecting pipe between the sand pump of each drilling platform and the first slurry pipe and a connecting pipe between each drilling platform and the second slurry pipe.
Preferably, two ends of the first slurry pipe and the second slurry pipe are respectively provided with a first main path valve, all the drilling platforms are connected in parallel between the first main path valves at the two ends, and a second main path valve is further respectively arranged between the two first main path valves of the first slurry pipe and the second slurry pipe.
Preferably, the central mud pit further comprises a sediment pool, the sediment pool is adjacent to the pulping bin, the height of the sediment pool is lower than that of the pulping bin, and a sand outlet of the mud separator is positioned above the sediment pool.
Preferably, the central mud pit also comprises a compartment plate for separating the pulping bin and the pulp storage bin, and the upper part of the compartment plate is provided with a filtering hole.
Preferably, at least one supporting steel pipe is arranged in the pulping bin and the pulp storage bin respectively, and the supporting steel pipes are perpendicular to the side wall of the central mud pit with the longer length.
Preferably, the number of the drilling platforms is two, and the central mud pit is located between the two drilling platforms.
Preferably, the first pulp pipe is
The second slurry pipe is
The seamless steel pipe of (1).
Preferably, the central mud pit is formed by welding steel templates, and the valve adopts an adjusting valve.
The beneficial effects of the utility model reside in that:
1. the mud circulating system of the utility model can connect all the drilling platforms, the mud in the drilling pile is pumped out by the sand pump and collected into the mud making bin through the pipeline, a central mud pool is not needed to be made beside each drilling platform, thus forming the industrialization and standardization, and greatly saving the manufacturing cost of the central mud pool; meanwhile, in the construction process, the problem of cleanness in transportation is not needed to be considered, the pile foundation construction efficiency is effectively improved, and the civilized construction requirements emphasized by owners are also met.
2. In the mud circulating system of the utility model, the mud in the drilled pile is pumped out by the sand pump, reaches the mud separator from the first mud pipe and then flows into the pulping bin; in the slurry making bin, the slurry reaches the slurry storage bin after being precipitated and filtered, and slurry in the slurry storage bin is pumped out by a slurry pump and flows back to the drilled pile from the second slurry pipe; the mud can be recycled in the mud circulating system for multiple times, and does not need a large amount of loess to prepare the mud, so that the time for preparing the mud and cleaning the holes is shortened, the use frequency of the mud is increased, and the material cost is reduced.
3. The central mud pit of the mud circulation system has a large design amount and has the function of storing mud, and during construction, when the mud amount exceeds the storage capacity of the central mud pit, transportation needs to be coordinated, so that the times of transporting vehicles outside the mud are reduced, the transportation cost is reduced, and the effects of energy conservation and emission reduction are achieved.
Drawings
Fig. 1 is a general layout diagram of an embodiment of the present invention.
Fig. 2 is a front view of the central mud pit of the embodiment of the present invention.
Fig. 3 is a right side view of fig. 2.
Reference numerals: 1-a pulping bin, 2-a pulp storage bin, 3-a sediment tank, 4-a mud separator, 5-a compartment plate, 6-a side plate, 7-a bottom plate, 8-a support steel pipe, 9-a mud pump, 10-a sand pump, 11-a first mud pipe, 12-a second mud pipe, 13-a drilling platform, 14-a connecting pipe, 15-a branch valve, 16-a first main path valve and 17-a second main path valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, a mud circulation system for bored pile construction includes a central mud pit, piping, and one or more boring platforms 13.
The central mud pit comprises a pulping bin 1 and a mud storage bin 2, the pulping bin 1 is communicated with the mud storage bin 2 at a position close to the upper surface, a mud separator 4 is arranged above the pulping bin 1, and a mud pump 9 is arranged in the mud storage bin 2.
The pipe system is used to connect the drilling platform 13 to the central mud pit. The piping system comprises a first pulp pipe 11, a second pulp pipe 12 and a connecting pipe 14. The sand pump 10 and the mud separator 4 are connected in parallel with the first slurry pipe 11 through a connecting pipe 14, and the mud pump 9 and the drilled pile are connected in parallel with the second slurry pipe 12 through the connecting pipe 14.
In particular, each drilling platform 13 contains a plurality of drilling piles. In this embodiment, there are two drilling platforms 13, and a central mud pit is located between the two drilling platforms 13, and one drilling platform contains six drilling piles. A sand pump 10 is fixedly arranged in the drilling pile of the drilling platform 13.
When the slurry circulating system operates, slurry in the drilled pile is pumped by the sand pump 10, reaches the slurry separator 4 from the first slurry pipe 11 and then flows into the slurry making bin 1; the mud in the storage bin 2 is pumped out by the mud pump 9 and flows from the second mud pipe 12 into the bored pile.
In this embodiment, a plurality of valves are provided on the first pulp pipe 11, the second pulp pipe 12 and the connecting pipe 14. When the mud circulating system operates, part of valves are opened, so that a pipeline between the sand pump 10 and the mud separator 4 is communicated with a pipeline between the mud pump 9 and the drilled pile; the remaining valves are closed to ensure the remaining lines are closed.
Specifically, a branch valve 15 is arranged on the connecting pipe 14 of the sand pump 10 and the first slurry pipe 11 of each drilling platform 13 and the connecting pipe 14 of each drilling platform 13 and the second slurry pipe 12. The bypass valve 15 determines whether the drilling platform is in communication with two grout pipes. When the drilling pile of a certain drilling platform 13 is in a working state, the branch valve 15 close to the drilling platform 13 is opened; and is closed at other times.
Further, two ends of the first slurry pipe 11 and the second slurry pipe 12 are respectively provided with a first main path valve 16, and all the drilling platforms 13 are connected in parallel between the first main path valves 16 at the two ends. The first main circuit valve 16 allows the mud circulation system to be in a closed loop preventing mud outflow. A second main path valve 17 is arranged between the two first main path valves 16 of the first pulp pipe 11 and the second pulp pipe 12 respectively. The second main pipe valve 17 functions to restrict the flow direction of the slurry in the pipe, not only to ensure the normal operation of the slurry circulation system, but also to ensure the shortest possible slurry stroke, and also to prevent the slurry from flowing into the drilled pile and the pipe in a non-operating state.
In this embodiment, two second main path valves 17 are provided, one of which is located on the first slurry pipe 11 between the drilling platform 13 relatively far from the detritus tank 3 and the mud separator 4, and the other of which is located on the second slurry pipe 12 between the drilling platform 13 relatively far from the detritus tank 3 and the mud pump 9.
Preferably, the valve adopts a regulating valve, and the mud flow in the pipeline can be regulated according to actual conditions.
In this embodiment, the central mud pit is formed by welding steel forms, as shown in fig. 2, and comprises a bottom plate 7 and four side plates 6. The central mud pit also comprises a compartment plate 5, the compartment plate 5 separates the pulping bin 1 from the pulp storage bin 2, and the upper part of the compartment plate 5 is provided with a filtering hole. The bottom edge of the compartment plate 5 is tightly connected with the bottom plate 7, and the side edge of the compartment plate 5 is perpendicular to and tightly connected with the two side plates 6 with longer length. The compartment partition plate 5 is divided into an upper part and a lower part, the lower part is solid, and the pulping bin 1 and the pulp storage bin 2 are thoroughly separated; the upper part is provided with a filtering hole, so that the mud on the upper part of the pulping bin 1 enters the pulp storage bin 2 after being filtered. Preferably, the upper part of the compartment plate 5 takes up two thirds of the height and the filter hole part takes up one third of the height.
Preferably, at least one supporting steel pipe 8 is respectively arranged in the pulping bin 1 and the pulp storage bin 2, and the supporting steel pipe 8 is perpendicular to the side wall of the central mud pit with longer length. Specifically, the support steel pipe 8 is fixedly arranged perpendicular to the two long side plates 6. The support steel pipe 8 can enhance the strength of the central mud pit. In the embodiment, the supporting steel pipes 8 in the pulping bin 1 and the pulp storage bin 2 are respectively one.
As shown in fig. 3, in this embodiment, the central mud pit further includes a sediment tank 3, the sediment tank 3 is adjacent to the pulping bin 1, the height of the sediment tank 3 is lower than that of the pulping bin 1, and the sand outlet of the mud separator 4 is located above the sediment tank 3. After the mud is treated by the mud separator 4, sand and stone in the mud reach the sediment tank 3 through a sand outlet of the mud separator 4, and the rest mud falls into the pulping bin 1 through a pulp outlet of the mud separator 4.
Preferably, the first pulp conduit 11 is
The second grout pipe 12 is
The seamless steel pipe of (1).
The embodiment of the utility model provides a theory of operation as follows:
as shown in fig. 1, in this embodiment, there are two drilling platforms, and a certain length is reserved at both ends of the first grout pipe 11 and the second grout pipe 12 for connecting other drilling platforms that may be present. In this embodiment, the four first main path valves 16 at both ends of the first pulp pipe 11 and the second pulp pipe 12 are always in the closed state.
In the process of mud circulation, a small amount of mud needs to be made in the mud storage bin 1 by using loess at the beginning, and the mud pump 9 pumps the mud out to a drilling pile to be constructed, and drilling is started. The mud is used here primarily to cool the drill bit, lubricate the drilling tool, increase hydrostatic pressure, and prevent hole collapse.
When only the drilling platform 13 close to the slag basin 3 is in the working state, the two branch valves 15 close to the drilling platform 13 are opened, and the two second main valves 17 are closed.
When only the drilling platform 13 relatively far from the slag bath 3 is in the working state, the two branch valves 15 close to the drilling platform 13 are opened, the two second main path valves 17 are opened, and the two branch valves 15 close to the other drilling platform 13 are closed.
When both drilling platforms 13 are in operation, both the four bypass valves 15 and the two second main valves 17 are open.
When the mud starts to circulate, the mud in the drilled pile is pumped by the sand pump 10 from the first mud pipe 11 to the mud separator 4. After the slurry is treated by the slurry separator 4, sand and stone in the slurry reach the sediment tank 3 through a sand outlet of the slurry separator 4, and the rest of the slurry flows into the slurry making bin 1 through a slurry outlet of the slurry separator 4. The sand fraction of the slurry in the slurrying silo 1 begins to settle, while the slurry with less sand flows into the slurry silo 2 through the filtering holes in the upper part of the compartment plate 5, and the slurry in the slurry silo 2 is pumped out by a slurry pump 9 and flows back into the bored pile from the second slurry pipe 12.
Along with the continuous operation of a slurry circulating system, more and more slurry is contained in the slurry preparing bin 1 and the slurry storage bin 2, more and more sand and stone are contained in the sediment tank 3, and when the amount of a storage volume is reached, the slurry is regularly cleaned.
In the process, the slurry circulating system connects all the drilling platforms 13 with the central slurry pool through a pipeline system, slurry in the drilling pile is pumped out by the sand pump 10 and collected into the slurry making bin 1 through a pipeline, a central slurry pool does not need to be manufactured beside each drilling platform 13, and the manufacturing cost of the central slurry pool can be greatly saved; meanwhile, in the construction process, the problem of slurry transportation does not need to be considered every day, and the problem of cleanness in transportation does not need to be considered, so that the construction efficiency of the pile foundation is effectively improved, and the civilized construction requirements emphasized by owners are met.
The mud of the mud circulating system can be recycled for many times, a large amount of loess is not needed for pulping, the time for preparing the mud and cleaning the holes is shortened, the use times of the mud are increased, and the material cost is reduced.
The central mud pit of the mud circulation system has a large design amount and has the function of storing mud, and during construction, when the mud amount exceeds the storage capacity of the central mud pit, the mud needs to be transported outwards in a coordinated manner, so that the times of transporting vehicles outwards are reduced, the transportation cost is reduced, and the effects of energy conservation and emission reduction are achieved.
The present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered to be within the protection scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (10)
1. A mud circulation system for bored pile construction, comprising:
the drilling platform (13), a sand pump (10) is fixedly arranged in the drilling pile of the drilling platform (13);
the central mud pit comprises a pulping bin (1) and a mud storage bin (2), the pulping bin (1) is communicated with the mud storage bin (2) at a position close to the upper surface, a mud separator (4) is arranged above the pulping bin (1), and a mud pump (9) is arranged in the mud storage bin (2);
a piping system connecting the drilling platform (13) and the central mud pit, the piping system comprising a first mud pipe (11), a second mud pipe (12) and a connecting pipe (14); the sand pump (10) and the mud separator (4) are connected in parallel with the first slurry pipe (11) through a connecting pipe (14), and the mud pump (9) and the drilled pile are connected in parallel with the second slurry pipe (12) through the connecting pipe (14); a plurality of valves are arranged on the first pulp pipe (11), the second pulp pipe (12) and the connecting pipe (14);
when the slurry circulating system is operated, slurry in the drilled pile is pumped by a sand pump (10) and flows into the slurry making bin (1) from a first slurry pipe (11) to the slurry separator (4); the mud in the mud storage bin (2) is pumped out by a mud pump (9) and flows into the drilled pile from a second mud pipe (12).
2. A mud circulation system for bored pile construction according to claim 1, wherein: when the mud circulating system operates, part of valves are opened, so that a pipeline between the sand pump (10) and the mud separator (4) is communicated with a pipeline between the mud pump (9) and the drilled pile; the rest valves are closed to seal the rest pipelines.
3. A mud circulation system for bored pile construction according to claim 2, wherein: a branch valve (15) is arranged on the sand pump (10) of the drilling platform (13) and the connecting pipe (14) of the first slurry pipe (11) and the connecting pipe (14) of each drilling platform (13) and the second slurry pipe (12).
4. A mud circulation system for bored pile construction according to claim 3, wherein: two ends of the first slurry pipe (11) and the second slurry pipe (12) are respectively provided with a first main path valve (16), all the drilling platforms (13) are connected in parallel between the first main path valves (16) at the two ends, and a second main path valve (17) is further respectively arranged between the two first main path valves (16) of the first slurry pipe (11) and the second slurry pipe (12).
5. A mud circulation system for bored pile construction according to claim 1, wherein: the central mud pit also comprises a sediment pool (3), the sediment pool (3) is adjacent to the pulping bin (1), the height of the sediment pool (3) is lower than that of the pulping bin (1), and a sand outlet of the mud separator (4) is positioned above the sediment pool (3).
6. A mud circulation system for bored pile construction according to claim 1, wherein: the central mud pit also comprises a compartment separation plate (5) for separating the pulping bin (1) and the pulp storage bin (2), and the upper part of the compartment separation plate (5) is provided with a filtering hole.
7. A mud circulation system for bored pile construction according to claim 1, wherein: at least one supporting steel pipe (8) is arranged in the pulping bin (1) and the pulp storage bin (2) respectively, and the supporting steel pipe (8) is perpendicular to the side wall of the central mud pit, which is long in length.
8. A mud circulation system for bored pile construction according to claim 1, wherein: the number of the drilling platforms (13) is two, and the central mud pit is located between the two drilling platforms (13).
9. A mud circulation system for bored pile construction according to any one of claims 1 to 8, wherein: the first slurry pipe (11) is
The second slurry pipe (12) is
The seamless steel pipe of (1).
10. A mud circulation system for bored pile construction according to any one of claims 1 to 8, wherein: the central mud pit is formed by welding steel templates, and the valve adopts the governing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920794848.4U CN210152587U (en) | 2019-05-29 | 2019-05-29 | A mud circulation system for bored pile construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920794848.4U CN210152587U (en) | 2019-05-29 | 2019-05-29 | A mud circulation system for bored pile construction |
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| CN210152587U true CN210152587U (en) | 2020-03-17 |
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| CN201920794848.4U Active CN210152587U (en) | 2019-05-29 | 2019-05-29 | A mud circulation system for bored pile construction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080705A (en) * | 2019-05-29 | 2019-08-02 | 中铁大桥局集团第五工程有限公司 | A kind of mud circulating system for drilled pile construction |
| CN111456657A (en) * | 2020-04-30 | 2020-07-28 | 中科兴创（北京）科技有限公司 | Mud preparation system |
-
2019
- 2019-05-29 CN CN201920794848.4U patent/CN210152587U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080705A (en) * | 2019-05-29 | 2019-08-02 | 中铁大桥局集团第五工程有限公司 | A kind of mud circulating system for drilled pile construction |
| CN110080705B (en) * | 2019-05-29 | 2024-06-25 | 中铁大桥局集团第五工程有限公司 | Slurry circulation system for bored pile construction |
| CN111456657A (en) * | 2020-04-30 | 2020-07-28 | 中科兴创（北京）科技有限公司 | Mud preparation system |
| CN111456657B (en) * | 2020-04-30 | 2020-12-29 | 中科兴创（北京）科技有限公司 | Mud preparation system |
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