AU2022201916A1 - Pipe Pile System with Interlock and Grout Pipe - Google Patents
Pipe Pile System with Interlock and Grout Pipe Download PDFInfo
- Publication number
- AU2022201916A1 AU2022201916A1 AU2022201916A AU2022201916A AU2022201916A1 AU 2022201916 A1 AU2022201916 A1 AU 2022201916A1 AU 2022201916 A AU2022201916 A AU 2022201916A AU 2022201916 A AU2022201916 A AU 2022201916A AU 2022201916 A1 AU2022201916 A1 AU 2022201916A1
- Authority
- AU
- Australia
- Prior art keywords
- interlocking element
- pipe pile
- pipe
- interlock
- interlocking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011440 grout Substances 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 230000008961 swelling Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- 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
- E02D5/28—Prefabricated piles made of steel or other metals
-
- 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
- E02D5/28—Prefabricated piles made of steel or other metals
- E02D5/285—Prefabricated piles made of steel or other metals tubular, e.g. prefabricated from sheet pile elements
Abstract
Provided is a pipe pile system. The pipe pile system comprises of pipe piles with an
interlock, a hydrophilic strip and a grout pipe. The interlock has a first interlocking element and a
second interlocking element on each pipe pile. The first interlocking and the second interlocking
element extend longitudinally along opposite sides of each pipe pile. Each pipe pile consists of
the first interlocking element and second interlocking element. The hydrophilic strip is located
within an accommodating slot formed by the engagement of the first interlocking element and
the second interlocking element. The grout pipe is attached to one side of the first interlocking
element.
1/5
1
3F
Fig. 1
Description
1/5
1
3F
Fig. 1
Pipe Pile System with Interlock and Grout Pipe
[0001] The present disclosure relates to construction industry, and in particular to a pipe pile system with interlock and grout pipe.
[0002] In current construction industry, excavation and lateral support (ELS) system comprising steel tubular pipe piles, grout curtain and lagging wall have widely been used to support the ground and prevent water seepage during deep basement excavation. The current method of construction of this ELS system basically involves different machineries and several steps as follows: a) install steel tubular pipe piles into the ground by heavy piling rigs as temporary vertical retaining wall to support the ground; b) drill small diameter vertical holes into the ground between each pipe pile by small drill rig; c) pump grout into the ground through these drillholes to form a grout curtain between pipe piles as water cut-off wall with low permeability; d) as basement excavation progresses downward, weld steel lagging plates between each pipe pile and layer by layer, to support the exposed soil face between each pile created during excavation; e) grout will also be provided to fill the gap between the lagging plate and the exposed soil face.
[0003] Accordingly, the current method of construction of the ELS system is quite tedious, time consuming and costly.
[0004] One object of the present disclosure is to provide an innovative construction detail that can be prefabricated in the steel tubular pipe piles to be installed, which can simplify and streamline the above operations hence result in significant time and cost save.
[0005] In the present disclosure, a pipe pile system comprising an interlock, a hydrophilic strip, and a grout pipe is provided. The interlock comprises a first interlocking element and a second interlocking element located at opposite sides of a pipe pile. The first interlocking element and the second interlocking element extend longitudinally along the length of the pipe pile. The first interlocking element is designed to engage and interlock with a second interlocking element of an adjacent pipe pile. The hydrophilic strip is anchored within a groove formed in the second interlocking element. The grout pipe is attached to a side of thefirst interlocking element.
[0006] In some embodiments, the first interlocking element is an open channel with a slot, and is composed of C-shaped plate to form a longitudinally-extending slot that opens into a longitudinally-extending cavity. A surface of the first interlocking element opposite the slot is welded to the pipe pile.
[0007] In some embodiments, the second interlocking element is a T-shaped rail that is attached to the pipe pile. The base of the T-shaped rail is welded to the pipe pile, and the cross bar extends outwardly thereof. When adjacent pipe piles are coupled together, the T-shaped rail of the second interlocking element passes through the slot in the first interlocking element and into the cavity. The cross bar of the T-shaped rail prevents the two interlocking elements from separating laterally. An accommodating slot is formed on the top surface of the cross bar of the T-shaped rail which is longitudinally-extending, and accommodates the hydrophilic strip.
[0008] In some embodiments, the grout pipe is located immediately next to the interlock. More specifically, the grout pipe is welded to a side of the first interlocking element and to a pipe pile. In some embodiments, the first interlocking element and the second interlocking element maintain the spaced relationship between adjacent pipe pile. The pipe pile system as provided is purposely designed with an interlock and built-in hydrophilic strip and grout pipe, hence offering extra water cut-off performance as well as eliminating the needs of drilling grout holes for curtain grouting. Comparing to the conventional method of grouting where grout will be injected randomly in all directions, our grout pipe is designed to have slots facing specific directions such that the grout injection will be focused in the designated zone only, resulting in saving of grout amount without affecting the water cut-off effectiveness.
[0009] The drawings are of illustrative embodiments. They do not illustrate all embodiments. Other embodiments may be used in addition or instead. Details which may be apparent or unnecessary may be omitted to save space or for more effective illustration. Some embodiments may be practiced with additional components or steps and/or without all of the components or steps which are illustrated. When the same numeral appears in different drawings, it refers to the same or like components or steps.
[0010] Fig. 1 a schematic diagram of a pipe pile system according to embodiments of the present disclosure.
[0011] Fig. 2 is a schematic diagram of the pipe pile system in another view according to embodiments of the present disclosure.
[0012] Fig. 3 is a schematic diagram of the interlock in the pipe pile system according to embodiments of the present disclosure.
[0013] Fig. 4 is a plan view of thefirst interlocking element with the grout pipe according to embodiments of the present disclosure.
[0014] Fig. 5 is a plan view of the second interlocking element according to embodiments of the present disclosure.
[0015] In the following detailed description of various embodiments of the disclosure, numerous specific details are set forth in order to provide a thorough understanding of various aspects of one or more embodiments of the disclosure. However, one or more embodiments of the disclosure may be practiced without some or all of these specific details. In other instances, well known methods, procedures, and/or components have not been described in detail so as not to unnecessarily obscure aspects of embodiments of the disclosure.
[0016] While multiple embodiments are disclosed, still other embodiments of the present disclosure will become apparent to those skilled in the art from the following detailed description, which shows and describes illustrative embodiments of the disclosure. As will be realized, the disclosure is capable of modifications in various obvious aspects, all without departing from the spirit and scope of the present disclosure. Accordingly, the screen shot figures, and the detailed descriptions thereof, are to be regarded as illustrative in nature and not restrictive. Also, the reference or non-reference to a particular embodiment of the disclosure shall not be interpreted to limit the scope of the disclosure.
[0017] As used herein, a plurality of items, structural elements, compositional elements, and/or materials may be presented in a common list for convenience. However, these lists should be construed as though each member of the list is individually identified as a separate and unique member. Thus, no individual member of such list should be construed as a de facto equivalent of any other member of the same list solely based on their presentation in a common group without indications to the contrary. 9418 In an embodiment, referring to Fig. 1to Fig. 5, a pipe pile system with interlock and grout pipe is provided. The pipe pile system comprises at least two pipe piles (a first pipe pile 1, a second pipe pile 2), an interlock 3, a hydrophilic strip 4 and a grout pipe 5. The interlock 3 comprises a first interlocking element 31 and a second interlocking element 32. The first interlocking element 31 and the second interlocking element 32 extend longitudinally along opposite sides of each pipe pile. Each Pipe pile has a first interlocking element 31 and a second interlocking element 32 attached. The first interlocking element 31 and the second interlocking element 32 extend longitudinally along the length of each pipe. The first interlocking element 31 is designed to engage and interlock with a second interlocking element 32 of an adjacent pipe pile. The hydrophilic strip 4 is located within an accommodating slot 321 and the second interlocking element 32. The grout pipe 5 is attached to one side of thefirst interlocking element 31 and to a pipe pile. In some embodiments, the first interlocking element 31 is welded to one side of the pipe pile. The second interlocking element 32 is welded to the other side of the pipe pile. The grout pipe 5 is welded to the side of thefirst interlocking element 31 and pipe pile. As shown in Fig. 1, at least two pipe piles are connected by the interlock to form a continuous pipe pile system. The pipe pile system as depicted in Fig. 1 have more than two pipe piles. Each pipe pile can interlock with the other one by the interlock 3 to form the continuous pipe pile system.
[0019] As shown in Fig. 1 to Fig. 4, the interlock 3 comprises a first interlocking element 31 and a second interlocking element 32 located on opposite sides of each pipe pile. The first interlocking element 31 and the second interlocking element 32 extend longitudinally along the length of each pipe pile. The first interlocking element 31 is designed to engage and interlock with the second interlocking element 32 of an adjacent pipe pile. The hydrophilic strip 4 is anchored within a groove (accommodating slot) 321 formed in the engagement of the first interlocking element 31 and the second interlocking element 32. The grout pipe 5 is attached to a side of the first interlocking element 31.
[0020] The first interlocking element 31 is an open channel with a slot 311 and is composed of a C-shaped plate. Namely, the interlocking element 31 has a cross section shaped like a letter C. The C-shaped plate includes two flanges 312 and a web 313. The outermost edge of each flange 312 is provided with an integral inwardly turned lip 315 to form a longitudinally extending cavity 314 between a web facing surface of lip 315 and the web 313. A bottom surface of the first interlocking element 31 opposite the slot 311 is attached to one side of each pipe pile
[0021] The second interlocking element 32 is a T-shaped rail that is attached to the opposite side of each pipe pile. The base of the T-shaped rail 32 is welded to the opposite side of each pipe pile, and the cross bar extends outwardly thereof. When adjacent pipe piles are coupled together, the T-shaped rail passes through the slot 311 in the first interlocking element 31 and into the cavity 314. The cross bar of the T-shaped rail 32 prevents the two interlocking elements 31, 32 from separating laterally. The accommodating slot 311 is formed on a top surface of the cross bar of the T-shaped rail 32 when the cross bar of the T-shaped rail 32 is abutted against the inner wall of the cavity 314. The accommodating slot 311 is longitudinally-extending and accommodates the hydrophilic strip 4. The first interlocking element 31 and the second interlocking element 32 maintain the spaced relationship between adjacent pipe piles.
[0022] The interlock 3 is steel and is prefabricated to the pipe piles to be installed. In some embodiments, the dimension and shape of the interlock is purposely designed to has adequate strength and stiffness to prevent distortion or damage during installation of pipe piles. The accommodating slot formed between the first interlocking element 31 and the second interlocking element 32 is capable of accommodating the hydrophilic strip 4. The width of the interlock is minimized, hence less ground disturbance/settlement as smaller size drill bit can be used for installing pipe piles. Furthermore, the interlock 3 supports the ground between pipe piles during basement excavation, hence eliminates the needs of installing steel lagging plate and filling of voids behind with grout.
[0023] The hydrophilic strip 4 is a water stopper. More specifically, the hydrophilic strip 4 is an expandable material when in contact with underground water, hence significantly enhancing the water cut-off performance between the pipe piles. The accommodating slot 311 formed between the first interlocking element 31 and the second interlocking element 32 is capable of accommodating the hydrophilic strip 4. The hydrophilic strip 4 is fixed within the accommodating slot 311 of the interlock 3. In some embodiments, the hydrophilic strip 4 is a polyurethane hydrophilic sealant which swells in contact with underground water to 2-3 times of its original volume. It is conceivable that the hydrophilic strip can effectively seal any void within the interlock 3, hence significantly enhance the water cut-off performance.
[0024] The grout pipe 5 is located immediately next to the interlock 3. More specifically, the grout pipe 5 is welded to a side of thefirst interlocking element 31. Namely, the grout pipe 5 is integrated with the interlock 3, such that they will be both installed into the ground together with the pipe piles. Although the interlock design can provide very good water cut-off performance already, grouting behind the pipe pile may sometimes still be required for special reasons. The integrated grout hole 51 can be readily used for pumping of grout if needed, mobilization separate drilling rigs and frilling of grout holes 51 afterwards are no longer required. As the grout pipe 5 is located immediately next to the interlock 3, the grouting will be more effective as it is right next to where leakage may occur. Besides, the amount of grout required to pumped into the ground will be significantly reduced as the area to be treated by grout is more localized and specific, when comparing to conventional method with group holes located 1-2m away from the pipe piles where the pumped grout can infiltrate in all direction.
[0025] The provided pipe pile system as provided is purposely designed with an interlock and built-in hydrophilic strip and grout pipe, hence offering extra water cut-off performance as well as eliminating the needs drilling of grout holes for curtain grouting.
[0026] While the foregoing written description of the disclosure enables one of ordinary skill to make and use what is considered presently to be the best mode thereof, those of ordinary skill will understand and appreciate the existence of variations, combinations, and equivalents of the specific embodiment, method, and examples herein. The disclosure should therefore not be limited by the above described embodiment, method, and examples, but by all embodiments and methods within the scope and spirit of the disclosure as claimed.
[0027] The foregoing description of the preferred embodiment of the disclosure has been presented for the purposes of illustration and description. While multiple embodiments are disclosed, still other embodiments of the present disclosure will become apparent to those skilled in the art from the above detailed description, which shows and describes illustrative embodiments of the disclosure. As will be realized, the disclosure is capable of modifications in various obvious aspects, all without departing from the spirit and scope of the present disclosure. Accordingly, the detailed description is to be regarded as illustrative in nature and not restrictive. Also, although not explicitly recited, one or more embodiments of the disclosure may be practiced in combination or conjunction with one another. Furthermore, the reference or non reference to a particular embodiment of the disclosure shall not be interpreted to limit the scope the disclosure. It is intended that the scope of the disclosure not be limited by this detailed description, but by the claims and the equivalents to the claims that are appended hereto.
[0028] Except as stated immediately above, nothing which has been stated or illustrated is intended or should be interpreted to cause a dedication of any component, step, feature, object, benefit, advantage, or equivalent to the public, regardless of whether it is or is not recited in the claims.
Claims (7)
- WHAT IS CLAIMED IS: 1. A pipe pile system, comprising: a first pipe pile, a second pipe pile, an interlock having a first interlocking element and a second interlocking element; the first interlocking and the second interlocking element extend longitudinally along opposite sides of each pipe pile; the first interlocking element is welded on one side of each pipe pile and the second interlocking element is welded at another side of each pipe pile; the first interlocking element is engaged and interlock with the second interlocking element of each pipe pile; a hydrophilic strip is located within an accommodating slot formed by the engagement of the first interlocking element and the second interlocking element; and a grout pipe is attached to one side of thefirst interlocking element.
- 2. The pipe pile system according to claim 1, wherein the first interlocking element comprises a channel with an open slot, and the second interlocking element comprises a T shaped rail; the open slot is configured to receive the T-shaped rail.
- 3. The pipe pile system according to claim 2, wherein the second interlocking element has a T-shaped cross-section.
- 4. The pipe pile system according to claim 2, wherein the first interlocking element has a slot which receives a portion of the second interlocking element.
- 5. The pipe pile system according to claim 3, wherein the first interlocking element consists of a C-shaped plate; the C-shaped plate comprises two flanges and a web; the outermost edge of each flange is provided with an integral inwardly turned lip to form a longitudinally extending cavity between a web facing surface of lip and the web; a bottom surface of thefirst interlocking element opposite the slot is attached to each pipe pile.
- 6. The pipe pile system according to claim 5, wherein the T-shaped rail of the second interlocking element passes through the slot in the first interlocking element and into the cavity.
- 7. The pipe pile system according to claim 1, wherein the hydrophilic strip is a polyurethane hydrophilic sealant which is capable of swelling in contact with water to 2-3 times of original volume of the polyurethane hydrophilic sealant.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HK32022049066.0 | 2022-03-01 | ||
| HK32022049066 | 2022-03-01 | ||
| HK32022054546 | 2022-06-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2022201916A1 true AU2022201916A1 (en) | 2023-09-21 |
| AU2022201916B2 AU2022201916B2 (en) | 2023-11-23 |
Family
ID=87884387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2022201916A Active AU2022201916B2 (en) | 2022-03-01 | 2022-03-19 | Pipe Pile System with Interlock and Grout Pipe |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU2022201916B2 (en) |
| WO (1) | WO2023166364A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5163785A (en) * | 1990-06-13 | 1992-11-17 | Unimetal | Method for sealing connections between sheet piles, and sheet piles employing said method |
| WO2010032485A1 (en) * | 2008-09-18 | 2010-03-25 | 新日本製鐵株式会社 | Steel pipe pile, joint structure of steel pipe sheet pile, and wall structure and method for drawing steel pipe sheet pile |
| JP2011006982A (en) * | 2009-06-29 | 2011-01-13 | Jfe Steel Corp | Wall structure constructed in ground and construction method for the same |
| RU2761335C1 (en) * | 2021-05-18 | 2021-12-07 | Дмитрий Борисович Ядрихинский | Lock joint of interlocking elements with a seal |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0656135U (en) * | 1992-12-25 | 1994-08-05 | 株式会社クボタ | Water-stop type joint structure for steel pipe sheet pile, etc. |
| JP2003105749A (en) * | 2001-09-28 | 2003-04-09 | Sumitomo Metal Ind Ltd | Water cut-off structure of sheet pile joint and forming method for water cut-off member |
| JP6664153B2 (en) * | 2015-05-13 | 2020-03-13 | 株式会社クボタ | Steel pipe sheet pile connection structure |
| KR101811693B1 (en) * | 2017-03-20 | 2017-12-22 | 유한회사 강남이앤씨 | Cutoff wall structure with pile of wall steel pipe and H-beam and construction method of cutoff wall using the same |
| CN112554170A (en) * | 2020-12-15 | 2021-03-26 | 上海公路桥梁（集团）有限公司 | Hasp steel-pipe pile and foundation ditch envelope |
-
2022
- 2022-03-19 AU AU2022201916A patent/AU2022201916B2/en active Active
-
2023
- 2023-02-02 WO PCT/IB2023/050898 patent/WO2023166364A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5163785A (en) * | 1990-06-13 | 1992-11-17 | Unimetal | Method for sealing connections between sheet piles, and sheet piles employing said method |
| WO2010032485A1 (en) * | 2008-09-18 | 2010-03-25 | 新日本製鐵株式会社 | Steel pipe pile, joint structure of steel pipe sheet pile, and wall structure and method for drawing steel pipe sheet pile |
| JP2011006982A (en) * | 2009-06-29 | 2011-01-13 | Jfe Steel Corp | Wall structure constructed in ground and construction method for the same |
| RU2761335C1 (en) * | 2021-05-18 | 2021-12-07 | Дмитрий Борисович Ядрихинский | Lock joint of interlocking elements with a seal |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2022201916B2 (en) | 2023-11-23 |
| WO2023166364A1 (en) | 2023-09-07 |
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| Date | Code | Title | Description |
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| FGA | Letters patent sealed or granted (standard patent) |