US20150225917A1 - Structural foundation - Google Patents
Structural foundation Download PDFInfo
- Publication number
- US20150225917A1 US20150225917A1 US14/432,424 US201314432424A US2015225917A1 US 20150225917 A1 US20150225917 A1 US 20150225917A1 US 201314432424 A US201314432424 A US 201314432424A US 2015225917 A1 US2015225917 A1 US 2015225917A1
- Authority
- US
- United States
- Prior art keywords
- foundation
- spiral pile
- receiving pressure
- horizontal direction
- steel tube
- 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.)
- Abandoned
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 123
- 239000010959 steel Substances 0.000 claims abstract description 123
- 238000009434 installation Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 description 18
- 238000010586 diagram Methods 0.000 description 13
- 230000035882 stress Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 230000006355 external stress Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
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- 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
- E02D5/223—Details of top sections of foundation piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- 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
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
-
- 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
- E02D5/56—Screw piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/22—Placing by screwing down
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/1671—Shapes helical or spiral
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
- E02D2300/0032—Steel; Iron in sheet form, i.e. bent or deformed plate-material
Definitions
- the present invention relates to a structural foundation, and in particular, to a structural foundation having a foundation portion to be fixed to the ground using a spiral pile.
- Patent Document 1 shows a spiral pile that is to be directly driven into the ground in order to provide the foundation for a post.
- Patent Documents 2 to 4 show a method for creating a hole in a concrete block foundation or a poured concrete foundation installed in the ground, driving a spiral pile into the ground through the hole and fixing the concrete foundation.
- Such a spiral pile can be easily installed by pouring concrete on site and has the advantage that it is highly resistant to being pulled out due to the fact that the friction with the ground is great.
- Patent Document 1 Japan Patent No. 4017922
- Patent Document 2 Japan Patent No. 3836745
- Patent Document 3 Japan Patent No. 4558905
- Patent Document 4 Japan Patent No. 4585757
- An object of the present invention is to solve the above-described problems and to provide a structural foundation that can support a structure in a stable manner where stress placed on the spiral pile that forms the foundation in the horizontal direction or in the vertical direction can be reduced. Another object is to provide a structural foundation that can be easily installed on site with reduced costs for transportation and installment.
- the invention according to claim 1 provides a structural foundation for supporting a structure or part of a structure, wherein the structural foundation has a foundation portion to be fixed to the ground using a spiral pile, and is characterized in that the foundation portion has a cylindrical steel tube for guiding the spiral pile and a portion for receiving pressure in the horizontal direction, which is placed so as to surround the cylindrical steel tube, and the foundation portion and the spiral pile are provided with a fixing means for connecting the foundation portion and the spiral pile in a state where the spiral pile is inserted into the cylindrical steel tube and the spiral pile is embedded in the ground.
- the invention according to claim 2 provides the structural foundation according to claim 1 , which is characterized in that the spiral pile has a spiral portion formed by twisting a flat steel plate and a tubular portion for housing and holding one end of the spiral portion, and the tubular portion is placed inside the cylindrical steel tube when the spiral pile and the foundation portion are integrated.
- the invention according to claim 3 provides the structural foundation according to claim 2 , which is characterized in that the fixing means is formed of a flange provided as a portion of the cylindrical steel tube or as a portion of the portion for receiving pressure in the horizontal direction, and a flange provided as a portion of the tubular portion, and the foundation portion and the spiral pile are connected when the flanges are connected and fixed to each other.
- the invention according to claim 4 provides the structural foundation according to any of claims 1 to 3 , which is characterized in that the portion for receiving pressure in the horizontal direction is formed of a cylindrical steel tube or formed by joining together sections of a steel H beam, a steel I beam, a steel channel and a steel angle.
- the invention according to claim 5 provides the structural foundation according to any of claims 1 to 4 , which is characterized in that the foundation portion has a portion for receiving pressure in the vertical direction, and the portion for receiving pressure in the vertical direction is a flat steel plate provided in a space between the cylindrical steel tube and the portion for receiving pressure in the horizontal direction.
- the invention according to claim 6 provides the structural foundation according to any of claims 1 to 3 , which is characterized in that a part including the cylindrical steel tube and a part including the portion for receiving pressure in the horizontal direction can be separated from each other.
- the invention according to claim 7 provides the structural foundation according to claim 6 , which is characterized in that the part including the cylindrical steel tube and the part including the portion for receiving pressure in the horizontal direction are linked together, the spiral pile is fixed to either the part including the cylindrical steel tube or the part including the portion for receiving pressure in the horizontal direction, and a space between the cylindrical steel tube and the portion for receiving pressure in the horizontal direction is filled in with concrete that has been poured so as to cover an area where the parts are linked together and an area where the spiral pile is fixed and solidified.
- the invention according to claim 8 provides the structural foundation according to any of claims 1 to 7 , which is characterized in that at least either one of the spiral pile and the fixing means of the foundation portion is provided with an installation angle adjusting means with which the angle at which the spiral pile is installed and fixed in the ground can be adjusted.
- the invention according to claim 9 provides the structural foundation according to any of claims 1 to 8 , which is characterized in that at least either one of the spiral pile and the foundation portion is provided with a structure adjusting means with which at least either one of the height or the degree of levelness of the supported structure can be adjusted while the structure is being installed.
- the invention according to claim 1 provides a structural foundation for supporting a structure or part of a structure, wherein the structural foundation has a foundation portion to be fixed to the ground using a spiral pile, and is characterized in that the foundation portion has a cylindrical steel tube for guiding the spiral pile and a portion for receiving pressure in the horizontal direction, which is placed so as to surround the cylindrical steel tube, and the foundation portion and the spiral pile are provided with a fixing means for connecting the foundation portion and the spiral pile in a state where the spiral pile is inserted into the cylindrical steel tube and the spiral pile is embedded in the ground, and therefore the integrated spiral pipe and the portion for receiving pressure in the horizontal direction makes it possible for the portion for receiving pressure in the horizontal direction to withstand stress in the horizontal direction and for stress placed on the spiral pile to be reduced.
- the cylindrical steel tube holds the spiral pile through the entirety of its length thus preventing the spiral pile from deformation caused by localized stress.
- this configuration can provide a structural foundation that is resistant to stress in the horizontal direction and can support the structure in a stable manner.
- the spiral pile and the foundation portion can be easily combined at the construction site, and therefore a structural foundation with reduced cost for transportation and installation can be provided.
- the spiral pile has a spiral portion formed by twisting a flat steel plate and a tubular portion for housing and holding one end of the spiral portion, and the tubular portion is placed inside the cylindrical steel tube when the spiral pile and the foundation portion are integrated, and therefore the tubular portion can be used to guide the spiral pile smoothly into the cylindrical steel tube provided in the foundation portion.
- the tubular portion and the cylindrical steel tube work together to increase the strength of contact between the spiral pile and the foundation portion and to increase their integrity as a whole, and therefore a structural foundation that is more resistant to external stress including stress in the horizontal direction can be provided.
- the fixing means is formed of a flange provided as a portion of the cylindrical steel tube or as a portion of the portion for receiving pressure in the horizontal direction, and a flange provided as a portion of the tubular portion, and the foundation portion and the spiral pile are connected when the flanges are connected and fixed to each other, and therefore the foundation portion and the spiral pile can be connected and integrated without fail.
- the portion for receiving pressure in the horizontal direction is formed of a cylindrical steel tube or formed by joining together sections of a steel H beam, a steel I beam, a steel channel and a steel angle, and therefore it is possible to form a portion for receiving pressure in the horizontal direction that is more resistant to external stress in the horizontal direction placed on the structural foundation.
- a cylindrical steel tube for example, when the steel tube is exposed to pressure, external stress in the horizontal direction placed on the structural foundation can be dispersed throughout the entirety of the steel tube thus preventing deformation caused by stress.
- a material having a high level of mechanical strength such as a steel H beam, a steel I beam, a steel channel or a steel angle is used, it is also possible to prevent a localized displacement in the portion for receiving pressure in the horizontal direction.
- the foundation portion has a portion for receiving pressure in the vertical direction
- the portion for receiving pressure in the vertical direction is a flat steel plate provided in a space between the cylindrical steel tube and the portion for receiving pressure in the horizontal direction, and therefore the flat steel plate receives external pressure in the vertical direction thus preventing deformation of the foundation in the vertical direction and also helping to avoid problems such as the structural foundation subsiding into the ground.
- the flat steel plate for linking the cylindrical steel tube to the portion for receiving pressure in the horizontal direction can be more solidly integrated.
- a part including the cylindrical steel tube and a part including the portion for receiving pressure in the horizontal direction can be separated from each other, and therefore parts that form the structural foundation can be broken down into a greater number of pieces, thus making it possible to further lower the cost for transportation.
- the invention according to claim 7 is characterized in that the part including the cylindrical steel tube and the part including the portion for receiving pressure in the horizontal direction are linked together, the spiral pile is fixed to either the part including the cylindrical steel tube or the part including the portion for receiving pressure in the horizontal direction, and a space between the cylindrical steel tube and the portion for receiving pressure in the horizontal direction is filled in with concrete that has been poured so as to cover an area where the parts are linked together and an area where the spiral pile is fixed and solidified, and therefore the foundation can be fixed without fail after the installment of the foundation in the ground.
- the invention according to claim 8 is characterized in that at least either one of the spiral pile and the fixing means of the foundation portion is provided with an installation angle adjusting means with which the angle at which the spiral pile is installed and fixed in the ground can be adjusted, and therefore the spiral pile can be installed and fixed in the ground easily while adjusting the angle of the spiral pile.
- the invention according to claim 9 is characterized in that at least either one of the spiral pile and the foundation portion is provided with a structure adjusting means with which at least either one of the height or the degree of levelness of the supported structure can be adjusted while the structure is being installed, and therefore the structure can be installed by flexibly adjusting the height and the angle for installment in accordance with the purpose and objectives of the supported structure.
- FIGS. 1A and 1B are diagrams illustrating the spiral pile for the structural foundation according the present invention.
- FIGS. 2A and 2B are diagrams illustrating the foundation portion according to the first embodiment of the present invention.
- FIG. 3 is a diagram illustrating the structural foundation according to the first embodiment of the present invention.
- FIGS. 4A and 4B are diagrams illustrating the constructed state of the structural foundation according to the first embodiment of the present invention.
- FIGS. 5A to 5E are diagrams illustrating the foundation portion according to the second embodiment of the present invention.
- FIGS. 6A to 6D are diagrams illustrating the method for constructing the structural foundation according to the first embodiment of the present invention.
- FIGS. 7A to 7F are diagrams illustrating the method for constructing the structural foundation according to the second embodiment of the present invention.
- the present invention provides a structural foundation for supporting a structure or part of a structure.
- the structural foundation having a foundation portion to be fixed to the ground using a spiral pile is characterized in that the foundation portion has a cylindrical steel tube for guiding the spiral pile and a portion for receiving pressure in the horizontal direction, which is placed so as to surround the cylindrical steel tube, and the foundation portion and the spiral pile are provided with a fixing means for connecting the foundation portion and the spiral pile in a state where the spiral pile is inserted into the cylindrical steel tube and the spiral pile is embedded in the ground.
- FIGS. 1A and 1B show an example of a spiral pile 1 used in the present invention.
- FIG. 1A is a front diagram showing the spiral pipe
- FIG. 1B is a top diagram showing the spiral pipe as viewed from the top.
- the spiral pile 1 is provided with a spiral portion 11 formed by twisting a flat steel plate and a flange 12 that becomes a fixing means for fixation to the below-described foundation portion.
- the fixing means 12 is provided with holes 14 for fixation to a fixing means installed in the portion for receiving pressure in the horizontal direction.
- the spiral pile 1 is connected to the foundation portion and bolts are inserted into the holes 14 for fixation to the foundation portion.
- the spiral pile 1 is driven into the ground while being rotated where the angle of contact with the fixing means of the portion for receiving pressure in the horizontal direction fluctuates due to the rotation of the spiral pile, and therefore it is preferable for the holes 14 to be elongated as in FIG. 1B .
- FIG. 2A is a front diagram
- FIG. 2B is a plan diagram
- the foundation portion 2 according to the first embodiment of the present invention has a portion 21 for receiving pressure in the horizontal direction, which reduces external pressure in the horizontal direction that the spiral pile 1 receives from the ground, a cylindrical steel tube 23 for guiding the spiral pile, and a fixing means 22 for fixing the spiral pile to the foundation portion.
- a portion 24 for receiving pressure in the vertical direction it is preferable for a portion 24 for receiving pressure in the vertical direction to be formed in a space between the cylindrical steel tube 23 and the portion 21 for receiving pressure in the horizontal direction.
- a cylindrical steel tube is used for the portion for receiving pressure in the horizontal direction, and as a result external pressure in the horizontal direction that is received from the ground is dispersed equally throughout the entirety of the portion for receiving pressure in the horizontal direction, and therefore the entirety of the foundation portion 2 can be stabilized.
- holes 25 for fixation to the fixing means 12 of the spiral pile 1 and holes 26 used to support a structure or part of a structure are created in the fixing means 22 of the foundation portion 2 .
- the holes 25 are of a conventional size and are created closer to the center of the fixing means 22 .
- the holes 26 are created closer to the outside of the fixing means 22 , and the size and the locations thereof can be changed when appropriate depending on the relationship with the spiral pile and the supported structure.
- the holes it is preferable for the holes to cover a certain area, for example as in the case of elongated holes, so that the installation angle of the supported structure can be adjusted appropriately, and in addition such means for adjusting the installation angle of the structure or the spiral pile may be provided in the fixing portion of the spiral pile instead of in the foundation portion 2 .
- one hole can be used both for fixing the spiral pile and for fixing the structure.
- the foundation portion 2 and the spiral pile 1 are connected the foundation portion 2 is fixed in the ground and then the spiral pile 1 is inserted into the cylindrical steel tube 23 and the fixing means 12 of the spiral pile 1 and the fixing means 22 of the foundation portion 2 are joined to each other.
- the fixing means 12 and 22 are joined to each other so that the spiral pile 1 and the foundation portion 2 are connected, the structure in FIG. 3 is gained.
- the tubular portion 13 of the spiral pile and the cylindrical steel tube 23 work together so that the spiral pile 1 can be held in a stable manner.
- bolts 31 are used in accordance with the method for joining the fixing means to each other in the present embodiment, flanges may be selected as the fixing means so that when appropriate a method that employs the welding of flanges together can be adopted.
- FIGS. 4A and 4B are diagrams illustrating a case where a support pillar, which is an example of a structure, is supported.
- a support pillar which is an example of a structure
- the flange of the support pillar is fixed to the flange 12 of the spiral pile as in FIG. 4A so as to fix the support pillar.
- the fixation method at that time when appropriate a method for using bolts 31 in the same manner as when the spiral pile is fixed to the foundation portion or a method of welding for fixation can be adopted.
- double nuts 41 are used in order to connect the structural foundation 3 and the structure 4 .
- the structure 4 can be installed while microscopically adjusting the height and the degree of levelness for installing the structure 4 .
- the support pillar can be supported by inserting the support pillar into the tubular portion 13 so that the support pillar is fixed in the tubular portion.
- the structural foundation according to the second embodiment of the present invention shown in FIGS. 5A to 5E is formed such that a part 5 including the portion 21 for receiving pressure in the horizontal direction that is formed by joining sections of a steel channel together and a part 55 including the cylindrical tube 23 can be separated from each other.
- the steel channel used for the portion 21 for receiving pressure in the horizontal direction itself has a high level of mechanical strength, and accordingly the portion for receiving pressure in the horizontal direction using the steel channel has a high level of mechanical strength so that external pressure in the horizontal direction received by the spiral pile from the ground can be reduced.
- a fixing means 51 provided in the portion 21 for receiving pressure in the horizontal direction in the present embodiment is connected to an upper portion of the portion 21 for receiving pressure in the horizontal direction through a connection member 52 , and holes 53 and 54 to be used for fixation to the fixing means of the spiral pile and to a structure or part of a structure are created in the same manner as in the first embodiment.
- the fixing means 57 for fixture to the part 55 including the cylindrical steel tube is connected to the portion 21 for receiving pressure in the horizontal direction through connection members 52 .
- the present embodiment adopts a configuration where the fixing means 54 and 57 are fixed to the portion 21 for receiving pressure in the horizontal direction through the connection members 52 .
- FIG. 5E a configuration can be adopted where a flat steel plate in which holes are created in advance is fixed to the portion 21 for receiving pressure in the horizontal direction.
- the structural foundation according to the second embodiment of the present invention is formed so that the cylindrical steel tube 55 and the portion 5 for receiving pressure in the horizontal direction can be separated from each other.
- a fixing means 56 for fixation to the fixing means 57 of the portion for receiving pressure in the horizontal direction is formed in the cylindrical steel tube 55 , and the part 55 including the cylindrical steel tube and the part 5 including the portion for receiving pressure in the horizontal direction are linked and fixed to each other by connecting the fixing means 57 and the fixing means 56 , thus forming the structural foundation.
- the cylindrical steel tube and the portion for receiving pressure in the horizontal direction can be separated from each other as in the present embodiment so that the structure can be assembled on site and thus a structural foundation can be easily provided with reduced cost for preparation and transportation.
- a steel channel is used for the portion for receiving pressure in the horizontal direction in the present embodiment
- a steel H beam, a steel I beam or a steel angle can also be adopted when appropriate.
- the form of the fixing means and the method for connecting the fixing means are of course not limited to those in the present embodiment.
- FIG. 6A a construction method for the structural foundation where a cylindrical steel tube is used as the portion for receiving pressure in the horizontal direction as in FIG. 3 is described in reference to FIGS. 6A to 6D .
- a foundation portion 2 is installed in the ground.
- the ground it is possible for the foundation portion 2 to be installed on the ground as it is without need for excavation.
- the depth of the excavation is not particularly limited as long as the foundation portion 2 can be fixed in the ground without fail, but it is preferable to excavate to such a depth that the top portions of all the members in the foundation portion are at the same level as the surface of the ground or at a level slightly lower than the surface of the ground.
- the spiral pile 1 is inserted into the cylindrical steel tube 23 and the spiral pile 1 is driven into the ground while being rotated until the fixing means 12 of the spiral pile and the fixing means 22 of the foundation portion 2 make contact with each other.
- the spiral pile 1 and the foundation portion 2 are linked and fixed to each other by joining the fixing means 12 and the fixing means 22 to each other while adjusting the angle at which the spiral pile 1 is installed using the installation angle means provided in the spiral pile 1 or in the foundation portion 2 .
- the structure 4 is placed on the upper portion of the structural foundation 3 and then the structure 4 and the structural foundation 3 are fixed to each other.
- the fixing means various methods can be adopted as described above, but it is preferable to use double nuts 41 so that the height and the degree of levelness can be adjusted while the structure 4 is being installed.
- the space that has been created between the ground and the structural foundation as well as between the ground and the structure is filled in with a filler 6 such as concrete, mortar or rubble.
- a filler 6 such as concrete, mortar or rubble.
- FIGS. 5A to 5E a construction method for the structural foundation where the portion for receiving pressure in the horizontal direction and the cylindrical steel tube can be separated from each other as shown in FIGS. 5A to 5E is described.
- the part 55 including the cylindrical steel tube is firmly installed in the ground. At this time it is preferable to excavate the ground to a predetermined depth in the same manner as in FIGS. 6A to 6D .
- the space between the cylindrical steel tube 23 and the ground is filled in with a filler 6 such as gravel or rubble, with which the ground is paved so that the part 55 including the cylindrical steel tube can be fixed to the ground.
- a filler 6 such as gravel or rubble
- the part 5 including the portion for receiving pressure in the horizontal direction is linked and fixed to the part 55 including the cylindrical steel tube, thus forming the structural foundation.
- various methods according to which fixing means are combined by inserting bolts or by welding can be adopted as described above.
- the spiral pile is inserted through the cylindrical steel tube and driven into the ground while being rotated so that the spiral pile 1 and the structural foundation are fixed to each other.
- the fixing method at this time is the same as that shown in FIGS. 6A to 6B , and the foundation portion and the spiral pile 1 are fixed to each other while adjusting the installation angle using elongated holes created in the foundation portion or the spiral pile 1 .
- the spiral pile 1 may be fixed to either the part including the cylindrical steel tube or the part including the portion for receiving pressure in the horizontal direction, and the way for creating holes in the fixing means and the locations in which holes are created can be changed when appropriate.
- the structure or the part of the structure is fixed to the structural foundation.
- various methods can be adopted as described above, and it is preferable to fix the structure or the part of the structure to the structural foundation while adjusting the height and the degree of levelness of the structure using double nuts or the like.
- concrete is poured into the space between the structural foundation and the ground and is left to solidify.
- the structural foundation can be fixed to the ground without fail. It is more preferable to pour the concrete so as to cover the points at which the structure or the part of the structure becomes joined to the structural foundation. As a result, the structure or the part of the structure can be fixed more firmly.
- the present invention can provide a structural foundation wherein a spiral pile for supporting the foundation can be fixed in such a stable manner as not to displace in the horizontal direction or not to subside in the vertical direction.
- the structural foundation can be easily installed on site with reduced costs for transportation and installment.
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
- Foundations (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2012-221569 | 2012-10-03 | ||
JP2012221569A JP6173671B2 (ja) | 2012-10-03 | 2012-10-03 | 構造物用基礎 |
PCT/JP2013/076895 WO2014054713A1 (ja) | 2012-10-03 | 2013-10-03 | 構造物用基礎 |
Publications (1)
Publication Number | Publication Date |
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US20150225917A1 true US20150225917A1 (en) | 2015-08-13 |
Family
ID=50435033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US14/432,424 Abandoned US20150225917A1 (en) | 2012-10-03 | 2013-10-03 | Structural foundation |
Country Status (7)
Country | Link |
---|---|
US (1) | US20150225917A1 (ja) |
JP (1) | JP6173671B2 (ja) |
KR (1) | KR20150063490A (ja) |
CN (1) | CN104822884A (ja) |
HK (1) | HK1209468A1 (ja) |
TW (1) | TW201414903A (ja) |
WO (1) | WO2014054713A1 (ja) |
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CN112942562B (zh) * | 2021-02-03 | 2022-05-03 | 浙江吉祥建设集团有限公司 | 装配式结构及其施工方法 |
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KR102651458B1 (ko) * | 2023-10-30 | 2024-03-26 | 주식회사 아키페이스 | 경사 지반에 지주를 설치하기 위한 지반 보강구조체 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN107386281A (zh) * | 2017-07-20 | 2017-11-24 | 重庆交通大学 | 一种适于季节性冻土区的上直杆下螺杆抗拔桩及其施工方法 |
US10563402B1 (en) | 2018-12-27 | 2020-02-18 | King Saud University | Method of connecting a circular concrete-filled steel tubular column to a reinforced concrete footing |
US10954672B2 (en) | 2018-12-27 | 2021-03-23 | King Saud University | Method of connecting a circular concrete-filled steel tubular column to a reinforced concrete footing |
CN110397073A (zh) * | 2019-07-26 | 2019-11-01 | 天津大学 | 一种带有螺旋桩的复合型圆形基础及其施工方法 |
USD931094S1 (en) * | 2020-07-27 | 2021-09-21 | Garm Beall | Rain chain anchor |
Also Published As
Publication number | Publication date |
---|---|
WO2014054713A1 (ja) | 2014-04-10 |
JP6173671B2 (ja) | 2017-08-02 |
KR20150063490A (ko) | 2015-06-09 |
TW201414903A (zh) | 2014-04-16 |
JP2014074278A (ja) | 2014-04-24 |
HK1209468A1 (en) | 2016-04-01 |
CN104822884A (zh) | 2015-08-05 |
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