CN112495050A - Filtering device and prefabricated pipe pile for soft soil foundation treatment - Google Patents

Filtering device and prefabricated pipe pile for soft soil foundation treatment Download PDF

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Publication number
CN112495050A
CN112495050A CN202011208199.9A CN202011208199A CN112495050A CN 112495050 A CN112495050 A CN 112495050A CN 202011208199 A CN202011208199 A CN 202011208199A CN 112495050 A CN112495050 A CN 112495050A
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China
Prior art keywords
cylinder
nut
hole
water passing
pile
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Granted
Application number
CN202011208199.9A
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Chinese (zh)
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CN112495050B (en
Inventor
黄俊光
李磊
李伟科
李健斌
陈香波
梁永恒
王渊
孙世永
林祖锴
罗永健
刘志宏
张帅
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Guangzhou Design Institute
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Guangzhou Design Institute
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Priority to CN202011208199.9A priority Critical patent/CN112495050B/en
Publication of CN112495050A publication Critical patent/CN112495050A/en
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Publication of CN112495050B publication Critical patent/CN112495050B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/02—Combinations of filters of different kinds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/005—Soil-conditioning by mixing with fibrous materials, filaments, open mesh or the like
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/24—Prefabricated piles
    • E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/72—Pile shoes

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The invention discloses a filtering device and a precast tubular pile for soft soil foundation treatment, wherein the filtering device comprises an installation cylinder, a filtering component and a fixing component, and the outer wall of the installation cylinder is provided with a first screwed part; the filter component is arranged in the mounting cylinder; the fixing component is connected with the mounting cylinder and used for fixing the filtering component in the mounting cylinder. The prefabricated tubular pile for soft soil foundation treatment comprises a pile body and the filtering device, wherein the side wall of the pile body is provided with at least two water passing through holes which are arranged at intervals, and the water passing through holes are threaded holes; the filtering device is provided with at least two filtering devices which are in one-to-one correspondence with the water passing through holes, and the mounting cylinder is in threaded connection with the pile body. When the installation section of thick bamboo is installed on the stake body, install through the spiro union cooperation, install and remove the convenience, after installing the section of thick bamboo on the stake body, during the drainage, the water filters through filtering component, and the water after the filtration enters into the stake body, realizes filtering to cooperate the stake body to carry out the drainage.

Description

Filtering device and prefabricated pipe pile for soft soil foundation treatment
Technical Field
The invention relates to the technical field of soft soil treatment devices, in particular to a filtering device and a precast tubular pile for soft soil foundation treatment.
Background
The soft soil is fine soil deposited on coastal areas, lakes and marshes, valley areas and beaches and has the characteristics of high natural water content, large pore ratio, high compressibility, low shear strength and the like. The mechanical properties of natural soft soil foundations are poor, and the requirements of engineering construction cannot be met generally. Therefore, before building a building on a soft foundation, the soft foundation needs to be treated, and common treatment methods include a drainage consolidation method and a pipe pile rigid composite foundation method.
When drainage treatment is carried out, a precast tubular pile is generally used, and the precast tubular pile is widely applied to soft soil foundation treatment due to the advantages of strong strength, controllable quality, simple construction and the like. The filtering device is usually arranged on the pile body of the precast tubular pile to avoid carrying silt in the process of drainage. However, the conventional filtering apparatus has a problem of inconvenient assembly and disassembly.
Disclosure of Invention
Based on this, it is necessary to provide a filtering device and a precast tubular pile for soft soil foundation treatment; the filtering device is provided with a first screwed part which can be assembled on the pile body in a screwed matching mode, and is convenient to assemble and disassemble; this a precast tubular pile for soft soil foundation handles includes aforementioned filter equipment, filter equipment and stake body easy dismounting.
The technical scheme is as follows:
one embodiment provides a filter apparatus comprising:
the mounting barrel is provided with a first screwed part on the outer wall;
the filter assembly is arranged in the mounting cylinder; and
the fixing component is connected with the mounting cylinder and used for fixing the filtering component in the mounting cylinder.
Above-mentioned filter equipment is equipped with first spiro union portion in the installation section of thick bamboo, when installing on the stake body, installs through the spiro union cooperation, installs and removes the convenience, will install the section of thick bamboo after installing on the stake body, during the drainage, the water filters through filtering component, and the water after the filtration enters into the stake body, realizes filtering to cooperate the stake body to carry out the drainage.
The technical solution is further explained below:
in one embodiment, the filter assembly comprises a geotextile and a filter material, wherein the filter material is wrapped inside the geotextile.
In one embodiment, the filter assembly further comprises an inner cylinder, the wall of the inner cylinder is arranged in a net shape, the inner cylinder is sleeved in the installation cylinder, and the length of the inner cylinder is smaller than that of the installation cylinder; the geotextile and the filter material are arranged in the inner cylinder.
In one embodiment, the inner cylinder comprises a cylinder body and a cover body, one end of the cylinder body is sealed through a cylinder bottom, the cylinder bottom is arranged in a net shape, the other end of the cylinder body is fixed with the cover body, and the cover body is arranged in a net shape.
In one embodiment, the filter material comprises a porous civil fabric and the inner cylinder is made of a metal material.
In one embodiment, the inner wall of the mounting cylinder is provided with a second screw joint part and a third screw joint part, and the second screw joint part and the third screw joint part are respectively positioned at two opposite ends of the mounting cylinder;
the fixing component comprises a first nut and a second nut, a fourth screwed part is arranged on the outer ring of the first nut, a fifth screwed part is arranged on the outer ring of the second nut, the fourth screwed part and the second screwed part are correspondingly arranged so that the first nut is screwed on one side of the mounting cylinder, the fifth screwed part and the third screwed part are screwed so that the second nut is screwed on the other side of the mounting cylinder, and the first nut and the second nut press the filtering component in the mounting cylinder;
the first nut is also provided with a first through hole, and the first through hole is formed along the axial direction of the first nut; the second nut is also provided with a second through hole, and the second through hole is formed along the axial direction of the second nut.
In one embodiment, the first through hole is a polygonal through hole; the second through hole is a polygonal through hole.
Another embodiment provides a precast pipe pile for soft soil foundation treatment, including:
the pile comprises a pile body, a pile head and a pile body, wherein the pile body is provided with a first pipe cavity, the first pipe cavity is arranged along the length direction of the pile body, the side wall of the pile body is provided with at least two water passing through holes which are arranged at intervals, the water passing through holes are threaded holes, and the bottom end of the pile body is also provided with the pile head; and
according to the filtering device in any technical scheme, at least two filtering devices are arranged and correspond to the water passing through holes one by one, and the first screwed part of the mounting cylinder is in screwed connection with the pile body through the water passing through holes.
Above-mentioned a precast tubular pile for soft soil foundation handles is equipped with water through-hole on the stake body, and filter equipment passes through water through-hole spiro union on the stake body to filter and drainage, install and remove the convenience.
The technical solution is further explained below:
in one embodiment, the length of the mounting cylinder is equal to that of the water through hole; or the length of the mounting cylinder is smaller than that of the water passing through hole.
In one embodiment, a plurality of water passing through holes are arranged, and the water passing through holes spirally extend along the length direction of the pile body;
the minimum distance between the water passing through hole and the upper end of the pile body is larger than a first preset distance.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Furthermore, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements in the drawings are drawn only by way of example, and not necessarily to true scale.
FIG. 1 is a sectional view showing the overall structure of a filter device in one embodiment;
FIG. 2 is an elevational view of the overall construction of the first nut of the embodiment of FIG. 1;
FIG. 3 is a side view of the overall structure of the first nut of the embodiment of FIG. 2;
fig. 4 is a schematic diagram illustrating an overall structure of a precast tubular pile manufactured by using the filtering device in the embodiment of fig. 1 in one embodiment.
Reference is made to the accompanying drawings in which:
10. a filtration device; 100. mounting the cylinder; 200. a filter assembly; 210. geotextile; 220. a filter material; 230. an inner barrel; 300. a fixing assembly; 310. a first nut; 311. a first through hole; 320. a second nut; 410. a pile body; 411. a water passing through hole; 412. a first lumen; 420. and (4) pile heads.
Detailed Description
Embodiments of the present invention are described in detail below with reference to the accompanying drawings:
in order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the soft soil foundation treatment process, the precast tubular pile is generally used for draining water, holes are formed in the precast tubular pile, then the pile body 410 of the precast tubular pile is pressed into the soft soil foundation, and then the drainage treatment is carried out in a pressurizing or vacuum mode. In order to prevent the water body from bringing silt and the like into the precast tubular pile, a filtering device 10 is generally provided. However, the conventional filtering device 10 is troublesome to fit with the pile body 410, and the filter net is usually installed inside the pile body 410, which results in troublesome assembly and disassembly. Therefore, it is desirable to provide a filter assembly 10 that is easily removable from the pile body 410.
Referring to fig. 1, one embodiment provides a filter assembly 10 including a mounting cartridge 100, a filter assembly 200, and a securing assembly 300. Wherein:
the mounting cartridge 100 is adapted to cooperate with the water passing hole 411 of the pile body 410 to mount the entire filter device 10 to the pile body 410, and the filter assembly 200 is mounted in the mounting cartridge 100 to filter passing muddy water.
The filter assembly 200 is used to filter water discharged into the installation cylinder 100 to prevent impurities such as sand from entering into the first lumen 412 of the pile body 410.
The fixing member 300 is used to fix the filter assembly 200 inside the installation tube 100.
Of course, what should be noted is:
securing assembly 300 after mounting filter assembly 200 to installation cartridge 100, securing assembly 300 does not block the passage of water through filter assembly 200 into first lumen 412 of pile body 410, and will not be described in detail.
In one embodiment, the outer wall of the mounting cylinder 100 is provided with a first screw connection portion.
Optionally, the cross-sectional shape of the mounting barrel 100 is circular, that is: the mounting cylinder 100 has a circular cylinder structure.
The outer wall of installation section of thick bamboo 100 is equipped with first spiro union portion, and first spiro union portion is the helicitic texture, and the helicitic texture spirals along the length direction of installation section of thick bamboo 100 and sets up to carry out threaded connection with the water through-hole 411 of crossing of stake body 410.
Alternatively, the first screw portion extends from one end of the mounting cylinder 100 to the other end of the mounting cylinder 100, that is, the outer wall of the mounting cylinder 100 is entirely provided with the first screw portion.
In one embodiment, referring to fig. 1, the filter assembly 200 is disposed in the mounting cartridge 100.
The cartridge 100 is mounted such that the entire filter device 10 is mounted on the pile body 410, and the filter assembly 200 filters the water as it passes through the water passage 411.
Alternatively, the filter element 200 may be made of a material having a filtering function, such as porous civil engineering fabric, and will not be described in detail.
In one embodiment, referring to fig. 1, the fixing assembly 300 is connected to the mounting cylinder 100, and the fixing assembly 300 is used for fixing the filter assembly 200 in the mounting cylinder 100.
This filter equipment 10 is equipped with first spiro union portion in the installation section of thick bamboo 100, when installing on stake body 410, installs through the spiro union cooperation, installs and removes the convenience, after installing on stake body 410 with installation section of thick bamboo 100, during the drainage, the water filters through filtering component 200, and the water after the filtration enters into stake body 410 in, realizes filtering to cooperate stake body 410 to carry out the drainage.
In one embodiment, referring to fig. 1, the filter assembly 200 includes a geotextile 210 and a filter material 220, wherein the filter material 220 is wrapped inside the geotextile 210.
In the embodiment shown in fig. 1, the filter assembly 200 includes a geotextile 210 and a filter material 220, and the geotextile 210 is wrapped outside the filter material 220 to cover the filter material 220 and prevent the filter material 220 from being too messy.
The geotextile 210 may be a water permeable geotextile 210, and the geotextile 210 is also called geotextile, and is a water permeable geosynthetic material formed by needling or weaving synthetic fibers.
The filtering material 220 may be a material with filtering function, such as civil engineering fabric, etc., to filter the water.
In one embodiment, referring to fig. 1, the filter assembly 200 further includes an inner cylinder 230, a wall of the inner cylinder 230 is disposed in a mesh shape, the inner cylinder 230 is sleeved in the installation cylinder 100, and a length of the inner cylinder 230 is smaller than a length of the installation cylinder 100.
In the embodiment shown in fig. 1, the filter assembly 200 further includes an inner cylinder 230 disposed inside the installation cylinder 100, wherein the radius of the inner cylinder 230 is slightly smaller than the inner diameter of the installation cylinder 100, so that the inner cylinder 230 is properly installed inside the installation cylinder 100, and the length of the inner cylinder 230 is smaller than the length of the installation cylinder 100, so as to reserve a space for installing and fixing the fixing assembly 300.
In one embodiment, referring to fig. 1, the geotextile 210 and the filter material 220 are disposed within the inner tube 230.
In the embodiment shown in fig. 1, the mounting cylinder 100 is configured in a cylindrical structure, and the cross section of the inner cylinder 230 may be circular or semicircular, that is: the inner cylinder 230 may be a cylindrical structure or a semi-cylindrical structure. Geotextile 210 is laid on the inner wall of the inner cylinder 230, and the geotextile 210 is internally covered with the filter material 220, which is not described again.
It can be understood that:
since the geotextile 210 has a flexible characteristic, when the inner tube 230 is filled with the filter material 220, the shape of the geotextile 210 is substantially similar to the shape of the inner tube 230, which is equivalent to that the geotextile 210 is laid on the inner wall of the inner tube 230, and will not be described again.
In one embodiment, the inner cylinder 230 includes a cylinder body and a cover, one end of the cylinder body is closed by a cylinder bottom, the cylinder bottom is in a mesh shape, the other end of the cylinder body is fixed to the cover, and the cover is in a mesh shape.
It can be understood that:
when the inner cylinder 230 is manufactured, the cylinder body is of a net-shaped cylinder structure, one end of the cylinder body is also provided with a net-shaped cylinder bottom for sealing, the other end of the cylinder body is sealed by a cover body, and the cover body is also of a net-shaped structure, so that both the inlet end and the outlet end of the cylinder body can be used for water passing, and the effect of filtering by the internal filtering material 220 is achieved.
In one embodiment, the filter material 220 comprises a porous civil fabric and the inner cartridge 230 is made of a metal material.
The combination of the inner cylinder 230, geotextile 210, and filter material 220 not only improves the filtering effect, but also improves the durability of the entire filter apparatus 10.
In one embodiment, the inner wall of the mounting cylinder 100 is provided with a second screw connection portion and a third screw connection portion, and the second screw connection portion and the third screw connection portion are respectively located at two opposite ends of the mounting cylinder 100.
In one embodiment, referring to fig. 1 and fig. 2, the fixing assembly 300 includes a first nut 310 and a second nut 320, an outer ring of the first nut 310 is provided with a fourth screw joint portion, an outer ring of the second nut 320 is provided with a fifth screw joint portion, the fourth screw joint portion and the second screw joint portion are correspondingly disposed so that the first nut 310 is screwed on one side of the mounting cylinder 100, the fifth screw joint portion and the third screw joint portion are screwed so that the second nut 320 is screwed on the other side of the mounting cylinder 100, and the first nut 310 and the second nut 320 press the filter assembly 200 in the mounting cylinder 100.
In the embodiment shown in fig. 1, a second screwing part is provided on the left side of the inner wall of the mounting cylinder 100, a fourth screwing part is provided on the outer ring of the first nut 310, and the fourth screwing part and the second screwing part are correspondingly provided, so that the first nut 310 can be screwed on the left inner wall of the mounting cylinder 100.
In the embodiment shown in fig. 1, a third screw connection portion is provided on the right side of the inner wall of the mounting cylinder 100, a fifth screw connection portion is provided on the outer ring of the second nut 320, and the fifth screw connection portion and the third screw connection portion are correspondingly provided, so that the second nut 320 can be screwed on the right side inner wall of the mounting cylinder 100.
So configured, in the view shown in fig. 1, during the process of screwing the first nut 310 to the mounting cylinder 100 and screwing the second nut 320 to the mounting cylinder 100, the first nut 310 moves towards the right side and the second nut 320 moves towards the left side, so as to fix the filter assembly 200 in the mounting cylinder 100.
Specifically, in the process of gradually drawing the first nut 310 and the second nut 320, the right side of the first nut 310 presses against the left side of the inner cylinder 230, and the left side of the second nut 320 presses against the right side of the inner cylinder 230, so that the inner cylinder 230 is tightly pressed in the installation cylinder 100, and the function of fixing the filter assembly 200 in the installation cylinder 100 is realized.
It should be noted that:
in the implementation of specific setting, for processing convenience, the second spiro union portion and the third spiro union portion of the inner wall of an installation section of thick bamboo 100 can be along the same set of screw thread that one side of an installation section of thick bamboo 100 extended to the opposite side, promptly, second spiro union portion and third spiro union portion are the helicitic texture that sets up at the inner wall along the whole field of an installation section of thick bamboo 100, are same section screw thread, but second spiro union portion and third spiro union portion are independent screw thread, no longer describe repeatedly.
The conventional nut is generally of a solid structure, that is, the center of the nut is solid, and in the present application, since the first nut 310 and the second nut 320 are required to enable the water to flow through the filter assembly 200 for filtration after the filter assembly 200 is fixed to the mounting cylinder 100, the first nut 310 and the second nut 320 should be provided with holes. Specifically, the method comprises the following steps:
in one embodiment, the first nut 310 is further provided with a first through hole 311, and the first through hole 311 is opened along the axial direction of the first nut 310.
In one embodiment, the second nut 320 is further provided with a second through hole, and the second through hole is opened along the axial direction of the second nut 320.
Taking the first nut 310 as an example, please refer to fig. 2 and fig. 3, an outer ring of the first nut 310 is a circular structure and is screwed with the second screwing part of the mounting barrel 100 through the fourth screwing part, and the first nut 310 is further provided with a second through hole along the axial direction to achieve the function of water passing, which is not described again.
In one embodiment, referring to fig. 2, the first through hole 311 is a polygonal through hole.
To facilitate the rotation of the first nut 310, the first through hole 311 is provided as a polygonal through hole to be rotated by a corresponding tool.
Alternatively, as shown in the embodiment of fig. 2, the first through holes 311 are arranged in a hexagonal structure to match a hexagonal wrench for rotational twisting.
Likewise, in one embodiment, the second through hole is a polygonal through hole.
Referring to fig. 4, another embodiment provides a precast tubular pile for soft soil foundation treatment, which includes a pile body 410 and the filtering device 10 according to any one of the previous embodiments. Specifically, the method comprises the following steps:
in one embodiment, referring to fig. 4, the pile body 410 has a first tube cavity 412, the first tube cavity 412 is disposed along a length direction of the pile body 410, a water passing hole 411 is disposed on a side wall of the pile body 410, at least two water passing holes 411 are disposed at intervals, the water passing hole 411 is a threaded hole, and a pile head 420 is further disposed at a bottom end of the pile body 410.
In the embodiment shown in fig. 4, the pile body 410 is provided with a first tube cavity 412, the water passing through holes 411 are formed in the side wall of the pile body 410, at least two water passing through holes 411 are formed, and any two water passing through holes 411 are formed at intervals.
In the embodiment shown in fig. 4, a pile head 420 is further disposed at the bottom of the pile body 410, the pile head 420 is disposed in a conical structure, and the pile head 420 facilitates driving the pile body 410 into a soft soil foundation.
In one embodiment, referring to fig. 4, the filtering device 10 is provided with at least two water passing through holes 411 in one-to-one correspondence, and the first screwing part of the mounting cylinder 100 is screwed with the pile body 410 through the water passing through holes 411.
This a precast tubular pile for soft soil foundation treatment is equipped with water through hole 411 on stake body 410, and filter equipment 10 passes through water through hole 411 spiro union on stake body 410 to filter and drainage, install and remove the convenience.
The water passing hole 411 has a threaded structure and is disposed corresponding to the first screwing portion. Therefore, the filtering device 10 can be assembled on the pile body 410 in a screw manner, and the assembly and disassembly are very convenient.
In one embodiment, referring to fig. 4, the length of the mounting cylinder 100 is equal to the length of the water passing hole 411.
In another embodiment, the length of the mounting cylinder 100 is less than the length of the water passing hole 411.
So set up, after filter equipment 10 installed on stake body 410, filter equipment 10 is whole all to be located the inside of water through-hole 411, and does not bulge in the outside of stake body 410 to play the effect of protection filter equipment 10, guarantee normal drainage and filtering action.
In one embodiment, as shown in the embodiment of FIG. 1 in combination with the embodiment of FIG. 4, the sum of the width of the first nut 310, the width of the second nut 320, and the length of the inner barrel 230 is no greater than the length of the mounting cartridge 100.
With such arrangement, after the inner cylinder 230 is fixed in the installation cylinder 100 by the first nut 310 and the second nut 320, neither the first nut 310 nor the second nut 320 protrudes out of the installation cylinder 100, and both the left end and the right end of the installation cylinder 100 are outside the protruding pile body 410, so that in actual use, the filter device 10 is exposed to a complex underground environment, and the probability of damage to the filter device 10 is greatly reduced.
In one embodiment, referring to fig. 4, a plurality of water passing through holes 411 are provided, and the water passing through holes 411 are spirally arranged along the length direction of the pile body 410.
In the embodiment shown in fig. 4, six water passing holes 411 are provided, and the six water passing holes 411 are not horizontally arranged at the same height from left to right, but are arranged at different heights, and in the longitudinal direction, are not on the same longitudinal straight line, but are in different longitudinal directions.
Therefore, as a preferred embodiment, the water passing through holes 411 may be spirally arranged around the length direction of the pile body 410, so that the water passing through holes 411 are correspondingly arranged in each direction of the periphery of the pile body 410, and the soft soil foundations in different directions of the periphery of the pile body 410 can be smoothly drained, thereby improving the drainage efficiency and the drainage effect and avoiding incomplete drainage in partial areas.
In one embodiment, the water passing hole 411 has a diameter of 15mm to 50 mm.
It can be understood that:
the water passing hole 411 may be used as a passage through which muddy water passes, and may be used as a high-pressure gas transmission passage during the treatment of a soft soil foundation, which is not described herein again.
In one embodiment, referring to fig. 4, the minimum distance between the water passing hole 411 and the upper end of the pile body 410 is greater than a first preset distance.
In the embodiment shown in fig. 4, a plurality of water passing holes 411 are provided, and the uppermost water passing hole 411 does not correspond to the upper end of the pile body 410, but is located at a distance below the upper end of the pile body 410, that is, the water passing holes 411 should be located at least in the soft soil after the pile body 410 is driven into the soft soil foundation, so that each water passing hole 411 plays a role of draining water.
It should be noted that:
the specific value of the first preset distance is determined according to the specific specification of the pile body 410 and the depth of the soft soil foundation to be driven into, or determined according to experience, and is not described herein again.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A filter device, comprising:
the mounting barrel is provided with a first screwed part on the outer wall;
the filter assembly is arranged in the mounting cylinder; and
the fixing component is connected with the mounting cylinder and used for fixing the filtering component in the mounting cylinder.
2. The filtration apparatus of claim 1, wherein the filter assembly comprises a geotextile and a filter material, the filter material being wrapped inside the geotextile.
3. The filtering device as claimed in claim 2, wherein the filtering assembly further comprises an inner cylinder, the wall of the inner cylinder is disposed in a net shape, the inner cylinder is sleeved in the installation cylinder, and the length of the inner cylinder is smaller than that of the installation cylinder; the geotextile and the filter material are arranged in the inner cylinder.
4. The filter device according to claim 3, wherein the inner cylinder comprises a cylinder body and a cover, one end of the cylinder body is closed by a cylinder bottom, the cylinder bottom is arranged in a net shape, the other end of the cylinder body is fixed with the cover, and the cover is arranged in a net shape.
5. A filter device as claimed in claim 3, wherein the filter material comprises a porous civil fabric and the inner drum is made of a metallic material.
6. The filtering device according to any one of claims 1 to 5, wherein the inner wall of the mounting cylinder is provided with a second screw joint part and a third screw joint part, and the second screw joint part and the third screw joint part are respectively positioned at two opposite ends of the mounting cylinder;
the fixing component comprises a first nut and a second nut, a fourth screwed part is arranged on the outer ring of the first nut, a fifth screwed part is arranged on the outer ring of the second nut, the fourth screwed part and the second screwed part are correspondingly arranged so that the first nut is screwed on one side of the mounting cylinder, the fifth screwed part and the third screwed part are screwed so that the second nut is screwed on the other side of the mounting cylinder, and the first nut and the second nut press the filtering component in the mounting cylinder;
the first nut is also provided with a first through hole, and the first through hole is formed along the axial direction of the first nut; the second nut is also provided with a second through hole, and the second through hole is formed along the axial direction of the second nut.
7. The filter device according to claim 6, wherein the first through-hole is a polygonal through-hole; the second through hole is a polygonal through hole.
8. A precast tubular pile for soft soil foundation treatment, its characterized in that includes:
the pile comprises a pile body, a pile head and a pile body, wherein the pile body is provided with a first pipe cavity, the first pipe cavity is arranged along the length direction of the pile body, the side wall of the pile body is provided with at least two water passing through holes which are arranged at intervals, the water passing through holes are threaded holes, and the bottom end of the pile body is also provided with the pile head; and
the filtering device as claimed in any one of claims 1 to 7, wherein the filtering device is provided with at least two water passing through holes, the at least two water passing through holes correspond to one another, and the first screwed part of the mounting barrel is in screwed fit with the pile body through the water passing through holes.
9. The precast tubular pile for soft soil foundation treatment according to claim 8, wherein the length of the installation cylinder is equal to the length of the water passing through hole; or the length of the mounting cylinder is smaller than that of the water passing through hole.
10. The precast tubular pile for soft soil foundation treatment according to claim 8, wherein a plurality of water passing through holes are provided, and the water passing through holes are spirally extended along the length direction of the pile body;
the minimum distance between the water passing through hole and the upper end of the pile body is larger than a first preset distance.
CN202011208199.9A 2020-11-03 2020-11-03 Prefabricated pipe pile for soft soil foundation treatment Active CN112495050B (en)

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