CN109183821B - Easily-detachable prefabricated horizontal dewatering well structure and construction method - Google Patents
Easily-detachable prefabricated horizontal dewatering well structure and construction method Download PDFInfo
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- CN109183821B CN109183821B CN201811086562.7A CN201811086562A CN109183821B CN 109183821 B CN109183821 B CN 109183821B CN 201811086562 A CN201811086562 A CN 201811086562A CN 109183821 B CN109183821 B CN 109183821B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/20—Restraining of underground water by damming or interrupting the passage of underground water by displacing the water, e.g. by compressed air
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
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Abstract
The invention discloses a structure and a construction method of an easily-detachable prefabricated horizontal dewatering well.A vertical well wall of the dewatering well is formed by splicing a plurality of arch plates, each arch plate comprises a web plate and end plates on two sides, wherein a groove is formed in one end plate, a bulge is formed in the other end plate, the sizes of the groove and the bulge are matched with each other, and a plurality of reserved holes are uniformly distributed in the web plate and used for mounting water collecting pipes; an annular base is preset below the wall of the vertical shaft well, an annular groove is arranged on the base, and a plurality of limiting grooves which correspond to the end plates in size and position one by one are uniformly distributed on the annular groove; the arch-shaped plate is made of pervious concrete and carbon fiber materials. The invention can effectively control the uneven settlement of the well wall, has small structural deformation and high construction efficiency, achieves the dewatering effect of the vertical dewatering well, can meet the requirements of dewatering at different depths, and can be recycled.
Description
Technical Field
The invention relates to a dewatering well structure, in particular to a prefabricated horizontal dewatering well structure easy to disassemble and an installation method.
Background
At present, the horizontal precipitation technology mainly depends on a horizontal water collecting pipe for precipitation, firstly, the construction of a water collecting vertical shaft is carried out, the horizontal water collecting pipe is laid on the wall of the water collecting vertical shaft, and the precipitation construction is completed by pumping water with the help of a water pump. The water collecting vertical shaft only plays a role of an enclosure structure and is impermeable, the water collecting vertical shaft in the prior engineering mainly takes a prefabricated integral reinforced concrete shaft or a large-size steel pipe shaft, and the water collecting vertical shaft has the advantages of single function, poor adaptability, complex installation, long construction period, difficult control of construction quality and generally incapable of being recycled; when the water collecting pipes are arranged, construction personnel are required to climb up to arrange the water collecting pipes, so that the efficiency is low, and the construction difficulty and the risk coefficient are increased due to the climbing operation; with the increase of the precipitation depth, irregular settlement easily occurs on the well wall, and the vertical shaft structure is easily deformed when the settlement difference is too large.
Disclosure of Invention
In order to overcome various defects in the prior art, the invention provides the easily-detachable prefabricated horizontal precipitation well structure and the construction method, which can effectively control uneven settlement of a well wall, have small structural deformation and high construction efficiency, achieve the precipitation effect of a vertical precipitation well, can meet the precipitation requirements of different depths, and can be repeatedly recycled.
In order to solve the problems, the invention discloses a prefabricated horizontal dewatering well structure easy to disassemble, which comprises a vertical well wall and a water collecting pipe; the vertical shaft well wall is characterized in that the vertical shaft well wall is formed by splicing a plurality of arch plates, each arch plate comprises a web plate and end plates on two sides, a groove is formed in one end plate, a protrusion is formed in the other end plate, the sizes of the groove and the protrusion are matched with each other, and a plurality of reserved holes are uniformly distributed in each web plate and used for installing a water collecting pipe; an annular base is preset below the wall of the vertical shaft well, an annular groove is arranged on the base, and a plurality of limiting grooves which correspond to the end plates in size and position one by one are uniformly distributed on the annular groove;
the arch-shaped plate is made of pervious concrete and carbon fiber materials, the materials comprise broken stone, cement, sand, a water reducing agent, a carbon fiber body and water, wherein the consumption of the broken stone per cubic meter of the concrete is not lower than 1500 kg; the dosage of the cement is not less than 350 kg; the sand dosage is not higher than 60 kg; the dosage of the water reducing agent is not higher than 3 kg; the water consumption is not higher than 110 kg; the water-gel ratio is less than 0.35; the volume of the carbon fiber accounts for less than 0.6 percent of the total volume of the concrete.
Further, the manufacturing method of the arch plate comprises the following steps:
firstly, weighing quantitative macadam and sand according to the mixture ratio, simultaneously adding the macadam and the sand into a stirrer, adding 20% of water, and stirring for more than 1 min;
secondly, weighing a certain amount of cement according to the mixture ratio, putting the cement into a stirrer, and stirring for more than 1min until the cement slurry wraps the surface of the aggregate to form a cement slurry shell;
thirdly, heating the residual water to 60 ℃, weighing 30% of the residual water, mixing the residual water with a water reducing agent, and pouring the mixture into a stirrer;
fourthly, putting the dispersant carboxymethyl cellulose into the rest warm water; then weighing carbon fibers according to the mixture ratio, adding the carbon fibers into the dispersion liquid, and stirring until the carbon fibers are completely dispersed;
fifthly, adding the defoaming agent into the carbon fiber dispersion liquid, and continuing stirring until no bubbles exist on the surface of the dispersion liquid;
sixthly, adding the carbon fiber dispersion liquid into a stirrer, stirring the carbon fiber dispersion liquid and the wet material for more than 2min to form carbon fiber pervious concrete;
and seventhly, adding the carbon fiber pervious concrete into a standard test mold, simultaneously carrying out mechanical vibration tamping, putting into a maintenance environment for maintenance, removing the mold after 24 hours, and leaving the factory for on-site construction after 28 days of maintenance.
The arch-shaped plate manufactured by the steps has water permeability, and the modulus of the carbon fiber is higher than that of concrete, so that after the composite material is loaded, the section plays a role in transferring load, and under the condition of the same strain, the carbon fiber bears larger load, thereby sharing the load borne by the concrete matrix and improving the strength of the arch-shaped plate; meanwhile, the existence of the carbon fiber prevents the expansion of cracks in the cement base and improves the compressive strength of the material to a certain extent; the dispersing agent in the material is beneficial to uniform dispersion of the carbon fiber in the stirring process, and the phenomenon of floating and agglomeration of the fiber is avoided; in addition, a large amount of bubbles are generated during the stirring process, which affects the matrix performance, and thus the bubbles are eliminated by the defoaming agent.
The water-collecting vertical shaft of water permeability not only can utilize the collector pipe to carry out perpendicular precipitation, permeates water through the water permeability material simultaneously, has strengthened the precipitation function of vertical shaft greatly, prevents that the water in the well from remaining the corruption to the vertical shaft, has improved its life.
The shaft wall of the vertical shaft is formed by splicing a plurality of arch plates, the two sides of each arch plate are spliced and limited through grooves and bulges, the splicing is rapid, and the positioning precision is high; the annular base is preset below the wall of the vertical shaft, so that the vertical shaft can be quickly and accurately inserted into the water collecting vertical shaft, and the deformation of the vertical shaft due to irregular settlement can be avoided.
Furthermore, a support beam is fixed between the two end plates at the inner side of the arch plate. The wall of the water collecting vertical shaft adopts a structure that an arch plate is added with a beam, so that the assembled water collecting vertical shaft is small in deformation and more stable in structure.
Furthermore, the height positions of the supporting beams arranged on the two arch-shaped plates which are adjacently spliced left and right are different, the supporting beam on one arch-shaped plate is arranged at the upper position of the arch-shaped plate, and the supporting beam on the other adjacent arch-shaped plate is arranged at the lower position of the arch-shaped plate; the supporting beams arranged on every three arch-shaped plates with staggered positions are positioned at the same horizontal height; the triangular movable plate is supported on different supporting beams at the same horizontal height.
Through setting up the triangle-shaped movable plate on supporting beam at co-altitude, can accomplish laying of the horizontal collector pipe of different degree of depth conveniently high-efficiently, avoid constructor's climbing operation, improve factor of safety.
Further, the arch plates have different length sizes, and when the depth of precipitation exceeds 10 meters, the long arch plates and the short arch plates are spliced in a staggered mode along the axial direction and the radial direction; when the depth of precipitation is less than 10 m, the radial adjacent arch plates are all assembled by adopting the uniform length dimension.
Along with the increase of precipitation depth, the pressure that the shaft received increases thereupon, in order to increase the structural strength of shaft, the arched plate of concatenation shaft wall of a well is the crisscross structure of assembling along radial and axial.
Furthermore, the upper and lower arch plates are connected with each other at the inner sides of the end plates at the two sides through arc-shaped pipe piece bolts.
A construction method of a prefabricated horizontal dewatering well structure which is easy to disassemble is characterized by comprising the following steps,
firstly, excavating a positioning guide hole with a certain depth in advance in a construction site, and arranging an annular base at the bottom of the positioning guide hole in advance;
secondly, the arch-shaped plate is hung into the hole bottom and inserted into the corresponding groove of the annular base to sequentially complete the assembly of the water collecting vertical shaft; after the water collecting vertical shafts assembled by the long arch plates and the short arch plates are inserted into corresponding grooves of the annular base, the water collecting vertical shafts are connected on end plates on two sides through arc-shaped segment bolts;
thirdly, inserting a rotary drilling machine into a middle round hole of the annular base to drill and dig and take soil until the water collecting vertical shaft sinks to a specified depth, and placing a water pumping pipe at the bottom of the water collecting vertical shaft;
fourthly, erecting the triangular movable plate at a supporting beam on the wall of the water collecting shaft well by means of a truck crane, standing the triangular movable plate on a constructor to arrange horizontal water collecting pipes through a circular hole reserved on the wall of the water collecting shaft well, and lifting and moving the triangular movable plate to erect the triangular movable plate at the supporting beams at different heights so as to finish the construction of the horizontal water collecting pipes at different depths and directions;
and fifthly, respectively connecting a bottom water pumping pipe of the water collecting vertical shaft and a horizontal water collecting pipe with a water pumping pump to respectively perform drainage and precipitation construction.
According to the invention, the permeable well wall of the assembled water collecting vertical well is prefabricated by using the arch plates made of permeable concrete and carbon fiber materials, so that the water collecting vertical well can be subjected to precipitation through the well wall except for the precipitation of the water collecting pipe, and the compressive strength and the toughness of the water collecting vertical well are both obviously improved; the wall of the water collecting vertical shaft adopts a structure of an arched plate and a beam, so that the assembled water collecting vertical shaft has small deformation and more stable structure; the water-permeable well wall of the prefabricated assembled water-collecting vertical well with different sizes and quantities is designed and assembled, so that the requirements of different depths of precipitation can be met; the supporting beams reserved on the permeable well wall of the water collecting vertical well can also be used for erecting a triangular moving plate, so that construction personnel can lay horizontal water collecting pipes at different depths more conveniently, efficiently and safely; by presetting the inserted annular base, the uneven settlement of the well wall can be effectively controlled, and the assembly of the water collecting vertical well and the construction of the open caisson are facilitated; the arch-shaped plate for assembling the water collecting vertical shaft is convenient for large-scale production and transportation, and can also enable construction to be more convenient and efficient, and the construction quality to be controllable.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a second embodiment of the present invention;
FIG. 3 is a schematic perspective view of a dome plate;
FIG. 4 is a perspective view of the ring base of the present invention;
FIG. 5 is a schematic perspective view of a triangular movable plate according to the present invention;
FIG. 6 is a schematic perspective view of the triangular moving plate in another direction;
FIG. 7 is a schematic perspective view of a bolt for an arc segment according to the present invention;
FIG. 8 is a schematic view of an assembly structure according to an embodiment;
FIG. 9 is a schematic view of an assembly structure according to the second embodiment;
FIG. 10 is a schematic view of the assembled internal structure of the present invention;
in the figure: 1. an arch plate; 1.1, a web plate; 1.2, end plates; 1.3, a groove; 1.4, a bulge; 1.5, supporting beams; 1.6, reserving holes; 2. an annular base; 2.1, an annular groove; 2.2, limiting grooves; 3. a triangular moving plate; 4. arc section of jurisdiction bolt.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Example one
As shown in fig. 1 to 4, a readily detachable prefabricated horizontal dewatering well structure comprises a vertical well wall and a water collecting pipe; the shaft wall of the shaft is formed by splicing a plurality of arch plates 1, each arch plate 1 comprises a web plate 1.1 and end plates 1.2 on two sides, a groove 1.3 is formed in one end plate 1.2 on one side, a protrusion 1.4 is formed in the other end plate 1.2, the sizes of the groove 1.3 and the protrusion 1.4 are matched with each other, and a plurality of reserved holes 1.6 are uniformly distributed in the web plate 1.1 and used for mounting water collecting pipes; an annular base 2 is preset below the wall of the vertical shaft well, an annular groove 2.1 is arranged on the base 2, and a plurality of limiting grooves 2.2 which correspond to the end plates in size and position one by one are uniformly distributed on the annular groove;
the arch-shaped plate 1 is made of pervious concrete and carbon fiber materials, the materials comprise broken stone, cement, sand, a water reducing agent, a carbon fiber body and water, wherein the consumption of the broken stone per cubic meter of the concrete is not lower than 1500 kg; the dosage of the cement is not less than 350 kg; the sand dosage is not higher than 60 kg; the dosage of the water reducing agent is not higher than 3 kg; the water consumption is not higher than 110 kg; the water-gel ratio is less than 0.35; the volume of the carbon fiber accounts for less than 0.6 percent of the total volume of the concrete.
The manufacturing method of the arch plate 1 comprises the following steps:
firstly, weighing quantitative macadam and sand according to the mixture ratio, simultaneously adding the macadam and the sand into a stirrer, adding 20% of water, and stirring for more than 1 min;
secondly, weighing a certain amount of cement according to the mixture ratio, putting the cement into a stirrer, and stirring for more than 1min until the cement slurry wraps the surface of the aggregate to form a cement slurry shell;
thirdly, heating the residual water to 60 ℃, weighing 30% of the residual water, mixing the residual water with a water reducing agent, and pouring the mixture into a stirrer;
fourthly, putting the dispersant carboxymethyl cellulose into the rest warm water; then weighing carbon fibers according to the mixture ratio, adding the carbon fibers into the dispersion liquid, and stirring until the carbon fibers are completely dispersed;
fifthly, adding the defoaming agent into the carbon fiber dispersion liquid, and continuing stirring until no bubbles exist on the surface of the dispersion liquid;
sixthly, adding the carbon fiber dispersion liquid into a stirrer, stirring the carbon fiber dispersion liquid and the wet material for more than 2min to form carbon fiber pervious concrete;
and seventhly, adding the carbon fiber pervious concrete into a standard test mould, simultaneously carrying out mechanical vibration tamping, putting into a maintenance environment for maintenance, removing the mould after 24 hours, and leaving the factory for on-site construction after 28 days of maintenance.
The arch-shaped plate manufactured by the steps has water permeability, and the modulus of the carbon fiber is higher than that of concrete, so that after the composite material is loaded, the section plays a role in transferring load, and under the condition of the same strain, the carbon fiber bears larger load, thereby sharing the load borne by the concrete matrix and improving the strength of the arch-shaped plate; meanwhile, the existence of the carbon fiber prevents the expansion of cracks in the cement base and improves the compressive strength of the material to a certain extent; the dispersing agent in the material is beneficial to uniform dispersion of the carbon fiber in the stirring process, and the phenomenon of floating and agglomeration of the fiber is avoided; in addition, a large amount of bubbles are generated during the stirring process, which affects the matrix performance, and thus the bubbles are eliminated by the defoaming agent.
The water-collecting vertical shaft of water permeability not only can utilize the collector pipe to carry out perpendicular precipitation, permeates water through the water permeability material simultaneously, has strengthened the precipitation function of vertical shaft greatly, prevents that the water in the well from remaining the corruption to the vertical shaft, has improved its life.
The shaft wall of the shaft is formed by splicing a plurality of arch plates 1, the two sides of each arch plate are spliced and limited through grooves and bulges, the splicing is rapid, and the positioning precision is high; the annular base 2 is preset below the wall of the vertical shaft, so that the vertical shaft can be quickly and accurately inserted into the water collecting vertical shaft, and the deformation of the vertical shaft due to irregular settlement can be avoided.
Furthermore, a support beam 1.5 is fixed between two end plates 1.2 at the inner side of the arch plate 1. The wall of the water collecting vertical shaft adopts a structure that an arch plate is added with a beam, so that the assembled water collecting vertical shaft is small in deformation and more stable in structure.
Furthermore, the height positions of the support beams 1.5 arranged on the two arch-shaped plates 1 which are adjacently spliced left and right are different, wherein the support beam 1.5 on one arch-shaped plate is arranged at the upper position of the arch-shaped plate 1, and the support beam 1.5 on the other adjacent arch-shaped plate is arranged at the lower position of the arch-shaped plate 1; the supporting beams 1.5 arranged on every three arch plates 1 with staggered positions are positioned at the same horizontal height; the triangular movable plate is characterized by further comprising a triangular movable plate 3, wherein the triangular parts of the triangular movable plate 3 are respectively supported on different supporting beams 1.5 at the same horizontal height.
For example, a water collecting shaft formed by splicing 6 arch plates 1 is characterized in that a support beam 1.5 on one arch plate is arranged at a position which is far from the upper end 1/3 of the arch plate 1, and a support beam 1.5 on the other adjacent arch plate is arranged at a position which is far from the lower end 1/3 of the arch plate 1; the water collecting shaft is formed by splicing 9 arch plates 1, wherein a supporting beam 1.5 on one arch plate is arranged at a position which is far from the upper end 1/2 of the arch plate 1, a supporting beam 1.5 on the adjacent arch plate on the left side is arranged at a position which is far from the upper end 1/4 of the arch plate 1, and a supporting beam 1.5 on the adjacent arch plate on the right side is arranged at a position which is far from the lower end 1/4 of the arch plate 1;
through setting up triangle-shaped movable plate 3 on supporting beam 1.5 of co-altitude, can accomplish laying of the horizontal collector pipe of different degree of depth conveniently high-efficiently, avoid constructor's climbing operation, improve factor of safety.
When the depth of precipitation is less than 10 m, the radial adjacent arch plates are all assembled by adopting the uniform length dimension. The assembly is simple and quick, and the transportation is convenient.
Furthermore, the upper and lower arch plates are connected with each other at the inner sides of the end plates 1.2 at the two sides through arc-shaped segment bolts 4.
Example two
When the depth of the precipitation exceeds 10 meters, the pressure applied to the shaft is increased along with the increase of the depth of the precipitation, and in order to increase the structural strength of the shaft, the arch plates 1 have different length sizes, and the long arch plates and the short arch plates are assembled in a staggered mode along the axial direction and the radial direction. The rest of the structure is the same as the first embodiment.
A construction method of a prefabricated horizontal dewatering well structure which is easy to disassemble is characterized by comprising the following steps,
firstly, excavating a positioning guide hole with a certain depth in advance in a construction site, and arranging an annular base 2 at the bottom of the positioning guide hole in advance;
secondly, the arch-shaped plate is hung into the hole bottom and inserted into the corresponding groove of the annular base 2 to sequentially complete the assembly of the water collecting vertical shaft; after the water collecting vertical shafts assembled by the long arch plates and the short arch plates are inserted into corresponding grooves of the annular base 2, the water collecting vertical shafts are connected on the end plates 1.2 at two sides through arc-shaped segment bolts 4; the reserved hole 1.6 for mounting the water collecting pipe can be used as a hoisting hole at the moment;
thirdly, inserting a rotary drilling machine into a round hole in the middle of the annular base 2, drilling, digging and taking soil until the water collecting vertical shaft sinks to a specified depth, and placing a water pumping pipe at the bottom of the water collecting vertical shaft;
fourthly, erecting the triangular moving plate 3 at a supporting beam 1.5 on the wall of the water collecting shaft well by means of a truck crane, standing the triangular moving plate 3 by constructors to arrange horizontal water collecting pipes through a circular hole reserved on the wall of the water collecting shaft well, and erecting the triangular moving plate at the supporting beams 1.5 at different heights by hoisting and moving the triangular moving plate, so that construction of the horizontal water collecting pipes at different depths and directions is completed;
and fifthly, respectively connecting a bottom water pumping pipe of the water collecting vertical shaft and a horizontal water collecting pipe with a water pumping pump to respectively perform drainage and precipitation construction.
Claims (5)
1. A prefabricated horizontal precipitation well structure easy to disassemble comprises a vertical well wall and a water collecting pipe; the vertical shaft well wall is characterized in that the vertical shaft well wall is formed by splicing a plurality of arch plates (1), each arch plate (1) comprises a web (1.1) and end plates (1.2) on two sides, a groove (1.3) is formed in one end plate (1.2) on one side, a protrusion (1.4) is formed in the other end plate (1.2), the sizes of the groove (1.3) and the protrusion (1.4) are matched with each other, and a plurality of reserved holes (1.6) are uniformly distributed in the web (1.1) and used for mounting a water collecting pipe; an annular base (2) is preset below the wall of the vertical shaft well, an annular groove (2.1) is arranged on the annular base (2), and a plurality of limiting grooves (2.2) which correspond to the end plates in size and position one by one are uniformly distributed on the annular groove; a supporting beam (1.5) is fixed between two end plates (1.2) at the inner side of each arched plate (1), the supporting beams (1.5) arranged on the two arched plates (1) which are adjacently spliced left and right are different in height position, the supporting beam (1.5) on one arched plate is arranged at the upper position of the arched plate (1), and the supporting beam (1.5) on the other adjacent arched plate is arranged at the lower position of the arched plate (1); supporting beams (1.5) arranged on every three arch-shaped plates (1) with staggered positions are positioned on the same horizontal height; the triangular movable plate (3) is also included, and the triangular parts of the triangular movable plate (3) are respectively supported on different supporting beams (1.5) at the same horizontal height;
the arch-shaped plate (1) is made of pervious concrete and carbon fiber materials, wherein the materials comprise broken stone, cement, sand, a water reducing agent, a carbon fiber body and water, and the consumption of the broken stone per cubic meter of concrete is not lower than 1500 kg; the dosage of the cement is not less than 350 kg; the sand dosage is not higher than 60 kg; the dosage of the water reducing agent is not higher than 3 kg; the water consumption is not higher than 110 kg; the water-gel ratio is less than 0.35; the volume of the carbon fiber accounts for less than 0.6 percent of the total volume of the concrete.
2. The structure of easy-to-dismount prefabricated horizontal dewatering well according to claim 1, characterized in that the arch plate (1) is manufactured as follows:
firstly, weighing quantitative macadam and sand according to the mixture ratio, simultaneously adding the macadam and the sand into a stirrer, adding 20% of water, and stirring for more than 1 min;
secondly, weighing a certain amount of cement according to the mixture ratio, putting the cement into a stirrer, and stirring for more than 1min until the cement slurry wraps the surface of the aggregate to form a cement slurry shell;
thirdly, heating the residual water to 60 ℃, weighing 30% of the residual water, mixing the residual water with a water reducing agent, and pouring the mixture into a stirrer;
fourthly, putting the dispersing agent into the residual warm water; then weighing carbon fibers according to the mixture ratio, adding the carbon fibers into the dispersion liquid, and stirring until the carbon fibers are completely dispersed;
fifthly, adding the defoaming agent into the carbon fiber dispersion liquid, and continuing stirring until no bubbles exist on the surface of the dispersion liquid;
sixthly, adding the carbon fiber dispersion liquid into a stirrer, stirring the carbon fiber dispersion liquid and the wet material for more than 2min to form carbon fiber pervious concrete;
and seventhly, adding the carbon fiber pervious concrete into a standard test mould, simultaneously carrying out mechanical vibration tamping, putting into a maintenance environment for maintenance, removing the mould after 24 hours, and leaving the factory for on-site construction after 28 days of maintenance.
3. The structure of the easy-to-disassemble prefabricated horizontal dewatering well according to claim 1, characterized in that the arch plates (1) have different length dimensions, when the dewatering depth exceeds 10 meters, the long arch plates and the short arch plates are assembled in a staggered way along the axial direction and the radial direction; when the depth of precipitation is less than 10 m, the radial adjacent arch plates are all assembled by adopting the uniform length dimension.
4. The structure of easy-to-disassemble prefabricated horizontal dewatering well according to claim 1, characterized in that the upper and lower arch plates are connected by arc segment bolts (4) at the inner sides of the end plates (1.2) at both sides.
5. A construction method of an easily disassembled and prefabricated horizontal dewatering well structure based on the claim 1 is characterized by comprising the following steps,
firstly, a positioning guide hole with a certain depth is excavated in advance in a construction site, and an annular base (2) is arranged at the bottom of the positioning guide hole in advance;
secondly, the arch-shaped plate is hung into the hole bottom and inserted into the corresponding groove of the annular base (2) to sequentially complete the assembly of the water collecting vertical shaft; after the water collecting vertical shafts assembled by the long arch plates and the short arch plates are inserted into corresponding grooves of the annular base (2), the water collecting vertical shafts are connected on end plates (1.2) on two sides through arc-shaped segment bolts (4);
thirdly, inserting a rotary drilling machine into a middle round hole of the annular base (2) to drill and dig soil until the water collecting vertical shaft sinks to a specified depth, and placing a water pumping pipe at the bottom of the water collecting vertical shaft;
fourthly, erecting the triangular movable plate (3) at a supporting beam (1.5) on the wall of the water collecting vertical shaft by means of a truck crane, standing the triangular movable plate (3) by constructors, arranging horizontal water collecting pipes through round holes reserved on the wall of the water collecting vertical shaft,
the triangular movable plate is hoisted and moved to be erected at the supporting beams (1.5) with different heights, so that the construction of horizontal water collecting pipes in different depths and directions is completed;
and fifthly, respectively connecting a bottom water pumping pipe of the water collecting vertical shaft and a horizontal water collecting pipe with a water pumping pump to respectively perform drainage and precipitation construction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811086562.7A CN109183821B (en) | 2018-09-18 | 2018-09-18 | Easily-detachable prefabricated horizontal dewatering well structure and construction method |
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| CN201811086562.7A CN109183821B (en) | 2018-09-18 | 2018-09-18 | Easily-detachable prefabricated horizontal dewatering well structure and construction method |
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| CN109183821B true CN109183821B (en) | 2021-04-06 |
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| CN113605429B (en) * | 2021-08-11 | 2022-06-21 | 惠州市惠阳区第二建筑工程有限公司 | Construction process of dewatering well |
| JP7001304B1 (en) * | 2021-10-13 | 2022-01-19 | ベルテクス株式会社 | Assembled box-shaped manhole |
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| JPH02115491A (en) * | 1988-10-26 | 1990-04-27 | Suritsuto Ueru Kenkyusho:Kk | Bottomless well tube construction |
| CN201526053U (en) * | 2009-09-22 | 2010-07-14 | 清远达盈信复合材料制品有限公司 | Assembly box type inspection well for pipeline in lightweight composite material |
| CN202810175U (en) * | 2012-07-31 | 2013-03-20 | 中天建设集团有限公司天津分公司 | Follow-up platform for formwork construction for barrel structures |
| CN103466979A (en) * | 2013-08-28 | 2013-12-25 | 句容联众科技开发有限公司 | Carbon fiber reinforced cement and preparation method thereof |
| CN203569591U (en) * | 2013-09-18 | 2014-04-30 | 广东联塑科技实业有限公司 | Assembled plastic inspection well |
| CN206467755U (en) * | 2017-02-04 | 2017-09-05 | 长安大学 | A kind of permeable cover plate of steel plate carbon fiber reinforced concrete |
| CN207315379U (en) * | 2017-10-25 | 2018-05-04 | 北京建工土木工程有限公司 | A kind of precast assembly vertical shaft |
| CN108487284A (en) * | 2018-06-27 | 2018-09-04 | 上海城建市政工程（集团）有限公司 | A kind of sinking construction method of prefabricated after-pouring formula open caisson |
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2018
- 2018-09-18 CN CN201811086562.7A patent/CN109183821B/en active Active
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