CN210395353U - Grouting device for steel pipe pile - Google Patents
Grouting device for steel pipe pile Download PDFInfo
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- CN210395353U CN210395353U CN201920747901.5U CN201920747901U CN210395353U CN 210395353 U CN210395353 U CN 210395353U CN 201920747901 U CN201920747901 U CN 201920747901U CN 210395353 U CN210395353 U CN 210395353U
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Abstract
The utility model discloses a grouting device of steel-pipe pile, its characterized in that grouting device includes the slip casting pipe and connects at least one expandable utricule unit on the slip casting pipe, it has a plurality of grout holes to distribute on the slip casting pipe, expandable utricule unit includes with the connection body and the setting that the slip casting pipe is linked together are in utricule on the connection body, the top surface and the bottom surface of utricule are provided with spacing closing plate respectively, be connected with pressure tube and pressure release pipe on the utricule. The utility model has the advantages that: the grouting device has a simple structure, overcomes the injection limitation that the existing injection method can only realize single-point injection and certain depth through the pressurization and pressure relief control of the expandable bag body, realizes multi-point, multi-depth, subsection, fixed-point and fixed-depth injection, has wide application range and multiple purposes, and can be recycled.
Description
Technical Field
The utility model relates to an underground works technical field, concretely relates to steel-pipe pile's slip casting device.
Background
In engineering, a certain medium is often injected to achieve a certain engineering purpose, for example, a grouting body is formed by grouting a steel pipe pile, a grouting closing body is formed by grouting in a precipitation well, and the like, the existing injection method is limited by an injection device, and only the purpose of grouting the steel pipe pile, namely, closing a pipe orifice of the steel pipe, then injecting grout into the steel pipe, wherein the grout overflows from a certain open hole area of the steel pipe, and a single grouting body is formed at a certain depth; the method is characterized in that a single grouting closed body is formed at a certain depth after grouting is performed in a precipitation well, so that multi-point and multi-depth grouting cannot be realized, and related engineering application is limited.
Disclosure of Invention
The utility model aims at providing a grouting device of steel-pipe pile according to the weak point of above-mentioned prior art, this grouting device is through connecting at least one expandable utricule unit on the slip casting body, when carrying out the slip casting in the steel-pipe pile, pressurizes to the utricule of expandable utricule unit through the pressure tube and makes its inflation and then form the enclosed section in the steel-pipe pile, realizes segmentation, depthkeeping injection thick liquid.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
the grouting device for the steel pipe pile is characterized by comprising a grouting pipe and at least one expandable bag body unit connected to the grouting pipe, wherein a plurality of grout outlet holes are distributed in the grouting pipe, the expandable bag body unit comprises a connecting pipe body communicated with the grouting pipe and a bag body arranged on the connecting pipe body, limiting sealing plates are arranged on the top surface and the bottom surface of the bag body respectively, and a pressure charging pipe and a pressure discharging pipe are connected to the bag body.
The number of the inflatable balloon units is two, the inflatable balloon units comprise an upper inflatable balloon unit and a lower inflatable balloon unit, and the upper inflatable balloon unit and the lower inflatable balloon unit are respectively connected with the upper end and the lower end of the grouting pipe.
The limiting sealing plate on the top surface of the bag body is provided with a pressurizing pipe joint and a pressure relief pipe joint which are communicated with the inner cavity of the bag body, the pressurizing pipe is communicated with the bag body through the pressurizing pipe joint, and the pressure relief pipe is communicated with the bag body through the pressure relief pipe joint.
And a pressurizing connecting pipe and a pressure relief connecting pipe are also arranged in the upper inflatable bag body unit in a penetrating manner, the pressurizing connecting pipe is used for being connected with the pressurizing pipe in the lower inflatable bag body unit, and the pressure relief connecting pipe is used for being connected with the pressure relief pipe in the lower inflatable bag body unit.
And each of the pressure charging pipe and the pressure relief pipe is respectively provided with a control valve.
The utility model has the advantages that: the grouting device has a simple structure, overcomes the injection limitation that the existing injection method can only realize single-point injection and certain depth through the pressurization and pressure relief control of the expandable bag body, realizes multi-point, multi-depth, subsection, fixed-point and fixed-depth injection, has wide application range and multiple purposes, and can be recycled.
Drawings
Fig. 1 is a schematic structural view of a grouting device of the present invention;
fig. 2 is a schematic structural view of an upper inflatable bladder unit of the present invention;
fig. 3 is a schematic structural view of a lower inflatable bladder unit of the present invention;
fig. 4 is a schematic structural view of a steel pipe pile in the utility model;
FIG. 5 is a schematic view of the present invention, in which a grouting device is used to perform grouting in a steel pipe pile to form an end grouting body;
FIG. 6 is a schematic view of the present invention, in which a grouting device is used to perform grouting in a steel pipe pile to form a side grouting body of a pipe body;
fig. 7 is a schematic structural view of the middle steel pipe pile after grouting is completed;
FIG. 8 is a schematic view of the structure of the dewatering well of the present invention;
FIG. 9 is a schematic view of the present invention in which a grouting device is used to perform a grouting operation in a precipitation well as an end grouting enclosure;
FIG. 10 is a schematic view of the grouting apparatus of the present invention being used for grouting in a precipitation well to form a wall grouting enclosure;
figure 11 is the utility model discloses well precipitation well slip casting structure schematic diagram after accomplishing.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example with reference to the accompanying drawings, for the understanding of those skilled in the art:
referring to fig. 1-11, reference numerals 1-25 in the drawings are:
the inflatable balloon comprises an upper inflatable balloon unit 1, a balloon 1a, a limiting sealing plate 1b, a pressure charging pipe joint 1c, a pressure discharging pipe joint 1d, a connecting pipe body 1e, a joint 1f, a pressure charging connecting pipe 1g, a joint 1h, a pressure discharging connecting pipe 1i and a joint 1 j; the lower inflatable balloon unit 2, a balloon 2a, a limit sealing plate 2b, a pressure charging pipe joint 2c, a pressure discharging pipe joint 2d, a connecting pipe body 2e and a joint 2 f; a grouting pipe 3 and a grout outlet 3 a; the grouting device comprises a pressurizing pipe 4, a pressure relief pipe 5, a grouting pipe 6, a pressurizing pipe 7 and a control valve 7 a; a pressure relief pipe 8 and a control valve 8 a; a pressure relief pipe 9 and a control valve 9 a; a pressurizing pipe 10 and a control valve 10 a; the device comprises a steel pipe pile 11, a pile tip 12, a grout outlet 13, an elastic plug 14, a metal protective cover 15, grout 16, end grouting 17, pipe body side grouting 18, a dewatering well 19, a well wall 20, a well bottom closing plate 21, a water inlet 22, closing grout 23, an end grouting closing body 24 and a well wall grouting closing body 25.
Example 1: as shown in fig. 1 to 7, the present embodiment specifically relates to a grouting device for a steel pipe pile, which includes a grouting pipe 3, and an upper inflatable bladder unit 1 and a lower inflatable bladder unit 2 connected to upper and lower ends of the grouting pipe 3, respectively, and by controlling whether the upper inflatable bladder unit 1 and the lower inflatable bladder unit 2 are pressurized or depressurized, a closed cavity formed in the steel pipe pile 11 by the grouting device can be implemented to perform grouting at multiple points, multiple depths, segments, fixed points, and fixed depths.
As shown in fig. 1-5, the grouting pipe 3 in this embodiment is uniformly provided with a plurality of grouting holes 3a, the upper inflatable bladder unit 1 specifically includes a connecting pipe body 1e and a bladder body 1a, the connecting pipe body 1e penetrates through the center of the bladder body 1a and is not communicated with the center of the bladder body 1a, a connector 1f at the lower end of the connecting pipe body 1e is communicated with the upper port of the grouting pipe 3, and a connector 1f at the upper end is communicated with the grouting pipe 6 at the upper part; the top surface and the bottom surface of the capsule body 1a are respectively provided with a limiting sealing plate 1b, and the capsule body 1a can be limited in the vertical direction by the limiting sealing plates 1b, so that the capsule body can only expand in the radial direction under the pressurizing condition; meanwhile, a pressurizing pipe joint 1c and a pressure relief pipe joint 1d are further arranged on the top surface limiting sealing plate 1b of the bag body 1a, the pressurizing pipe joint 1c is used for being connected with a pressurizing pipe 7 at the upper part, a control valve 7a is further arranged on the pressurizing pipe 7 and used for controlling the on-off and flow rate of the pipeline, a medium can be injected into the bag body 1a through the pressurizing pipe 7 at high pressure so that the bag body 1a expands and can be positioned in the steel pipe pile 11, and the injected medium can be liquid or gas specifically; the pressure relief pipe joint 1d is used for connecting a pressure relief pipe 8 at the upper part, a control valve 8a is further arranged on the pressure relief pipe 8 and used for controlling the on-off and flow of the pipeline, and the medium in the capsule body 1a can be released through the pressure relief pipe 8 so as to enable the capsule body 1a to contract.
The lower inflatable bag body unit 2 specifically comprises a connecting pipe body 2e and a bag body 2a, the connecting pipe body 2e penetrates through the center of the bag body 2a and is not communicated with the bag body 2a, the lower end of the connecting pipe body 2e is closed, and a joint 2f at the upper end of the connecting pipe body 2e is communicated with the lower port of the grouting pipe 3; the top surface and the bottom surface of the capsule body 2a are respectively provided with a limiting sealing plate 2b, and the capsule body 2a can be limited in the vertical direction by the limiting sealing plates 2b, so that the capsule body can only expand in the radial direction under the pressurizing condition; meanwhile, a pressure-charging pipe joint 2c and a pressure-discharging pipe joint 2d are further arranged on the top surface limiting sealing plate 2b of the bag body 2a, the pressure-charging pipe joint 2c is used for connecting with a pressure-charging pipe 4 on the upper part, it should be noted that due to the blocking of the bag body 1a, a through channel is arranged in the bag body 1a, a pressure-charging connecting pipe 1g is arranged in the through channel, a lower end joint 1h of the pressure-charging connecting pipe 1g is communicated with the pressure-charging pipe 4 on the pressure-charging pipe joint 2c, an upper end joint 1h is connected with a pressure-charging pipe 10 on the upper part, a control valve 10a is further arranged on the pressure-charging pipe 10 and used for controlling the on-off and the flow of the pipeline, a medium can be injected into the bag body 2a under high pressure through the pressure-charging pipe 10 so that the bag body 2a is expanded; the pressure relief pipe joint 2d is used for connecting the pressure relief pipe 5 on the upper portion, it should be noted that, because the blocking of the capsule body 2a, a through channel is opened in the capsule body 2a and a pressure relief connecting pipe 1i is arranged in the through channel, the lower end joint 1j of the pressure relief connecting pipe 1i is communicated with the pressure relief pipe 5 on the pressure relief pipe joint 2d, the upper end joint 1j is communicated with the pressure relief pipe 9 on the upper portion, the pressure relief pipe 9 is further provided with a control valve 9a for controlling the on-off and the flow of the pipeline, and the medium in the capsule body 2a can be released through the pressure relief pipe 9 so as to shrink the capsule body 2.
As shown in fig. 1 to 7, the method for performing grouting construction in the steel pipe pile 11 by using the grouting apparatus in the present embodiment includes the steps of:
(1) firstly, driving a steel pipe pile 11, inserting the steel pipe pile 11 to a preset depth in a soil body, wherein the bottom of the steel pipe pile 11 is in the form of a pile tip 12, a plurality of grout outlet holes 13 are uniformly distributed on the pile body of the steel pipe pile 11, each grout outlet hole 13 is provided with an elastic plug 14, a metal protective cover 15 is arranged at each grout outlet hole 13 on the pipe wall of the steel pipe pile 11, and the elastic plugs 14 and the metal protective covers 15 jointly protect the grout outlet holes 13 on the steel pipe pile 11 from being blocked in the inserting process;
(2) then, the grouting device in the embodiment is put into the steel pipe pile 11 at a position close to the pile tip 12 of the end part under the condition of non-pressurization, and then the upper inflatable bladder unit 1 is pressurized, namely, a medium is injected into the bladder 1a through the pressurization pipe 7 to be pressurized so as to generate radial expansion, so that the bladder 1a can be tightly attached to the inner wall of the steel pipe pile 11 to realize positioning, and the control valve 7a is closed; because the lower inflatable bladder unit 2 is not filled with a medium for pressurization, the bladder 1a of the upper inflatable bladder unit 1 and the pile tip 12 at the end part in the steel pipe pile 11 form a grouting closed cavity at the end part together, then grout is injected into the grouting pipe 3 through the grouting pipe 6, the grout flows out from the grout outlet 3a on the grouting pipe 3 and enters the grouting closed cavity at the end part, the grout is pressed out from the elastic plug 14 on the grout outlet 13 of the steel pipe pile 11 under certain pressure, namely, the grout 16 overflows from the grout outlet 13 of the steel pipe pile 11, and grouting is stopped after a preset grouting amount is finished, so that end grouting 17 is formed in the end part area of the steel pipe pile 11;
(3) after the end grouting body 17 is grouted, a control valve 8a on the pressure relief pipe 8 is opened, so that the injected medium in the bag body 1a on the inflatable bag body unit 1 is discharged, the pressure relief and contraction inside the bag body 1a are restored, and the bag body 1a is separated from the pipe wall of the steel pipe pile 11; then integrally lifting the grouting device to a preset grouting position on the steel pipe pile 11 by a certain distance to enable the distribution area of the grout outlet holes 3a on the grouting pipe 3 to be matched with the distribution area of the grout outlet holes 13 on the steel pipe pile 11; then opening a control valve 7a on the pressurizing pipe 7 to inflate and inject media into the bag body 1a to enable the bag body 1a to expand radially, so that the bag body 1a can be tightly attached to the inner wall of the steel pipe pile 11 to achieve positioning, and closing the control valve 7 a; meanwhile, the control valve 10a on the pressurizing pipe 10 is opened, the bag body 2a is pressurized and injected with a medium through the pressurizing pipe 10, the pressurizing connecting pipe 1g and the pressurizing pipe 4 in sequence to generate radial expansion, so that the bag body 2a can be tightly attached to the inner wall of the steel pipe pile 11 to realize positioning, and the control valve 10a is closed; at the moment, the expanded and positioned balloon 1a and the balloon 2a form a grouting closed cavity together in the steel pipe pile 11;
then, injecting grout into the grouting pipe 3 through the grouting pipe 6, enabling the grout to flow out of a grout outlet 3a on the grouting pipe 3 and enter the grouting closed cavity, pressing the grout out of an elastic plug 14 on a grout outlet 13 of the steel pipe column 11 under certain pressure, namely enabling the grout 16 to overflow from the grout outlet 13 of the steel pipe column 11, stopping grouting after the preset grouting amount is finished, and forming pipe body side edge grouting 18 on the side edge of the steel pipe column 11;
(4) after the first pipe body side grouting body 18 is completed, repeating the method in the step (3), repeating the steps in the above manner, sequentially completing the construction of each pipe body side grouting body 18 in the height direction of the steel pipe pile 11, and finally forming a plurality of grouting bodies on the end part and the pipe body of the steel pipe pile 11, so that the bearing capacity of the steel pipe pile 11 is greatly improved.
The grouting apparatus according to the present embodiment may be installed in a precipitation well, a hollow tubular pile, a sand-free pipe, a hollow tubular body of other metals, non-metals, or the like, a hole, a pit, or the like, or an object requiring injection work, in addition to the steel pipe pile. That is, the grouting device in the embodiment has multiple purposes and can be recycled.
When using, gasbag 1a and gasbag 2a on the slip casting device can expand simultaneously in this embodiment, also can expand alone, form the enclosure through the inflation and carry out the injection operation, combine to transfer and lift, can form the enclosure in different positions and carry out the multiunit injection operation, have very strong flexibility, and then can realize multiple spot, many depths, segmentation, fixed point, fixed depth injection operation.
In addition, the injection device in the present embodiment is composed of two inflatable bladder units, and a single bladder, multiple bladders, series or parallel connection, etc. expanded in the idea should be considered as the scope of the present application.
Example 2: as shown in fig. 1-3 and 8-11, the present embodiment relates to an application method of the grouting device in embodiment 1 in a dewatering well 19, and specifically includes the following steps:
(1) firstly, arranging a precipitation well 19 in the embodiment in a preset depth of a soil body, wherein the precipitation well 19 is composed of a well wall 20, a well bottom closing plate 21 and a water inlet hole 22;
(2) then, the grouting device is put into the dewatering well 19 close to the bottom hole closing plate 21 at the end part, then the upper inflatable bag body unit 1 is pressurized, namely, a medium is injected into the bag body 1a through the pressurizing pipe 7 to be pressurized to generate radial expansion, so that the bag body 1a can be tightly attached to the well wall 20 of the dewatering well 19 to realize positioning, and the control valve 7a is closed; because the lower inflatable bag body unit 2 is not filled with medium for pressurizing, the bag body 1a of the upper inflatable bag body unit 1 and the bottom closing plate 21 form a grouting closed cavity at the end part together in the dewatering well 19, then grout is injected into the grouting pipe 3 through the grouting pipe 6, the grout flows out from the grout outlet 3a on the grouting pipe 3 and enters the grouting closed cavity at the end part, the closed grout 23 overflows outwards from the water inlet 22 on the well wall 20 of the dewatering well 19 under certain pressure, and grouting is stopped after the preset grouting amount is finished, so that the end part grouting closed body 24 is finished;
(3) after the construction of the end grouting closing body 24 is completed, the bag body 1a in the upper inflatable bag body unit 1 is decompressed according to the method in the embodiment 1, then the grouting device is lifted to a preset grouting position on the dewatering well 19 for a certain distance, the bag body 1a and the bag body 2a are pressurized to form a grouting closing cavity, then the side edge is grouted according to the method in the embodiment 1, the grouting is closed slurry 23, and a well wall grouting closing body 25 is formed;
(4) and (4) repeating the step (3), sequentially grouting other sections of the well wall 20 of the dewatering well 19, and finally forming a plurality of grouting closed bodies at the end part of the dewatering well 19 and the periphery of the well wall 20 so as to finish closing the dewatering well 19.
Example 3: the embodiment specifically relates to a grouting device for a steel pipe pile, which can also be used as a medicament injection device, and has the same specific structure as that in embodiment 1, except that the grouting pipe is made of a corrosion-resistant material so as to avoid reaction with injected repair medicaments.
Claims (5)
1. The grouting device for the steel pipe pile is characterized by comprising a grouting pipe and at least one expandable bag body unit connected to the grouting pipe, wherein a plurality of grout outlet holes are distributed in the grouting pipe, the expandable bag body unit comprises a connecting pipe body communicated with the grouting pipe and a bag body arranged on the connecting pipe body, limiting sealing plates are arranged on the top surface and the bottom surface of the bag body respectively, and a pressure charging pipe and a pressure discharging pipe are connected to the bag body.
2. The grouting device of a steel pipe pile according to claim 1, wherein the number of the inflatable bladder units is two, and the inflatable bladder units comprise an upper inflatable bladder unit and a lower inflatable bladder unit which are respectively connected with the upper end and the lower end of the grouting pipe.
3. The grouting device for the steel pipe pile according to claim 2, wherein the limiting sealing plate on the top surface of the bag body is provided with a pressure charging pipe joint and a pressure discharging pipe joint which are communicated with the inner cavity of the bag body, the pressure charging pipe is communicated with the bag body through the pressure charging pipe joint, and the pressure discharging pipe is communicated with the bag body through the pressure discharging pipe joint.
4. The grouting device for the steel pipe pile according to claim 3, wherein a pressure charging connection pipe and a pressure relief connection pipe are further arranged in the bladder of the upper inflatable bladder unit in a penetrating manner, the pressure charging connection pipe is used for being connected with the pressure charging pipe in the lower inflatable bladder unit, and the pressure relief connection pipe is used for being connected with the pressure relief pipe in the lower inflatable bladder unit.
5. The grouting device for the steel pipe pile according to claim 1, wherein each of the pressurization pipes and the pressure relief pipe is provided with a control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920747901.5U CN210395353U (en) | 2019-05-23 | 2019-05-23 | Grouting device for steel pipe pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920747901.5U CN210395353U (en) | 2019-05-23 | 2019-05-23 | Grouting device for steel pipe pile |
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| Publication Number | Publication Date |
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| CN210395353U true CN210395353U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920747901.5U Active CN210395353U (en) | 2019-05-23 | 2019-05-23 | Grouting device for steel pipe pile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501761A (en) * | 2020-05-08 | 2020-08-07 | 都城伟业集团有限公司 | Offshore steel pipe pile distributed post-grouting device, pneumatic grouting assembly and construction method |
| CN111535302A (en) * | 2020-05-08 | 2020-08-14 | 东南大学 | Cast-in-place pile distributed pile side-rear grouting device, hydraulic grouting assembly and construction method |
-
2019
- 2019-05-23 CN CN201920747901.5U patent/CN210395353U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501761A (en) * | 2020-05-08 | 2020-08-07 | 都城伟业集团有限公司 | Offshore steel pipe pile distributed post-grouting device, pneumatic grouting assembly and construction method |
| CN111535302A (en) * | 2020-05-08 | 2020-08-14 | 东南大学 | Cast-in-place pile distributed pile side-rear grouting device, hydraulic grouting assembly and construction method |
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