CN114466959A - Method for constructing a foundation element in the soil and foundation element - Google Patents
Method for constructing a foundation element in the soil and foundation element Download PDFInfo
- Publication number
- CN114466959A CN114466959A CN202080070349.6A CN202080070349A CN114466959A CN 114466959 A CN114466959 A CN 114466959A CN 202080070349 A CN202080070349 A CN 202080070349A CN 114466959 A CN114466959 A CN 114466959A
- Authority
- CN
- China
- Prior art keywords
- foundation element
- annular
- soil
- hole
- insert
- 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.)
- Pending
Links
- 239000002689 soil Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims description 20
- 239000000126 substance Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 21
- 238000005253 cladding Methods 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000018109 developmental process Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011796 hollow space material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
-
- 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
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- 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
- E02D27/16—Foundations formed of separate piles
-
- 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
-
- 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
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
-
- 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
- E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Foundations (AREA)
Abstract
The invention relates to a method for producing a foundation element in soil, wherein a hole is produced in the soil and a hardenable substance is introduced into the hole, said substance being hardened into the foundation element. According to the invention, it is provided that an insert body is inserted into the bore approximately centrally, said insert body being spaced apart from a circumferential wall of the bore, wherein an annular intermediate space is formed between the circumferential wall of the bore and the insert body, and that a hardenable mass is introduced into the annular intermediate space, said mass hardening into the annular foundation element.
Description
Technical Field
The invention relates to a method for constructing a foundation element in soil according to the preamble of claim 1, wherein a hole is constructed in the soil and a hardenable substance is introduced into the hole, which hardens into the foundation element.
The invention further relates to a foundation element according to the preamble of claim 11.
Background
In particular, for the purpose of guiding larger building loads into deeper soil layers, it has long been known to construct foundation elements in the soil. Here, the hole is constructed by removing soil material or by displacing soil material in the soil. The holes thus created are filled with a hardenable substance which can be hardened to form the foundation element. The guidance of the building load is effected here largely by the circumferential friction between the outer circumferential side of the hardened foundation element and the surrounding borehole wall and, in small part, by the horizontal bearing surface of the pile at the borehole bottom. In order to increase the load-bearing capacity of such foundation elements, it is known to configure the foundation elements with a corresponding axial length in order to achieve the desired circumferential friction.
It is also known to use foundation elements for geothermal purposes in addition to their original load-bearing function. In this case, the pipe system can be inserted for geothermal purposes into the not yet hardened material which has already been filled into the soil hole.
Disclosure of Invention
The invention is based on the object of specifying a method and a foundation element, by means of which the intended use of the foundation element can be significantly extended in a particularly efficient manner.
According to the invention, this object is achieved by a method having the features of claim 1 or by a foundation element having the features of claim 11. Preferred embodiments of the invention are given in the respective dependent claims.
The method according to the invention is characterized in that an insert body is inserted approximately centrally into the bore, which insert body is spaced apart from a circumferential wall of the bore, wherein an annular intermediate space is formed between the circumferential wall of the bore and the insert body, and a hardenable mass is introduced into the annular intermediate space, which hardens to form an annular foundation element.
The basic concept of the invention can be that the foundation element is no longer designed in the soil in a solid manner over the entire foundation cross section, but rather is designed as an annular foundation element. This is achieved by: the preferably releasable insert is arranged approximately centrally, wherein the hardening substance is preferably introduced only into the annular intermediate space between the wall of the hole in the soil and the outer side of the insert opposite the foundation element and is hardened in this intermediate space.
The invention is based on the recognition that the annular design has no significant effect on the load-bearing function of the foundation element, since, as in the case of solid foundation elements, the same circumferential friction is still generated at the outer circumferential side, which is particularly important for the load-bearing capacity. A certain reduction of the bearing surface can be produced by the annular shape only in the region of the bearing surface. By providing a central, non-load-bearing region at the bearing surface of the foundation element, the load-bearing capacity is thereby only slightly reduced, but at the same time the required hardenable mass is significantly reduced. This saves costs.
Furthermore, the space within the annular foundation element can be utilized in a variety of ways, thereby for example for geothermal purposes, for measurement purposes or for many other functions.
A preferred embodiment of the invention provides that the insert body is of annular design. The insert can be used here essentially only for supporting and forming the inner annular contour of the annular foundation element. The insert can remain in the foundation element or can be detached from the foundation element. The insert body can be made of metal, in particular steel, or a plastic material with a low load-bearing capacity.
In the case of a predetermined recovery of the insert, it is advantageous according to a further development of the invention if the insert is surrounded on its outside by a cladding element and, after hardening of the substance to form an annular foundation element, the insert is pulled out of the foundation element, wherein the cladding element remains on the annular foundation element. The covering element can be a thin tube or preferably a film, a fabric or another non-dimensionally stable flat structure. The cover element is arranged as a lost element on the outside of the insert body. The cladding element can remain on the hardened foundation element, while the insert can be easily removed from the cladding element and can be reused. This also results in further material and cost savings.
In order to increase the load-bearing capacity of the annular foundation element made of a hardenable mass, it is expedient according to a method variant of the invention if one or more reinforcement elements can be inserted into the annular intermediate space before the hardening of the mass. The reinforcing elements may be rods, beams (Tr ä ger) or baskets (the c-bar rbe) made of steel, among others.
According to one embodiment of the invention, it is advantageous if the annular foundation element is designed to absorb the desired foundation load; in particular, the cross-sectional area of the annular foundation element can be designed such that the required axial forces can be absorbed and removed via the outer circumferential surface. Furthermore, the foundation element can be designed with a base plate, so that the bearing forces can also be transmitted directly via this base plate, which is otherwise designed as a foundation element with a cavity.
In principle, the insert body can be designed in one piece. In particular for greater depths and therefore for longer foundation elements, it may be expedient according to one embodiment for the insert body to be formed from an annular section. The annular segments can be connected to one another axially, so that a longer insert is formed. The insert may have the same diameter over its length or may have a taper wherein the diameter widens upwardly. This makes the extraction of the insert from the foundation element easier.
According to an advantageous embodiment of the invention, it is provided that the central cavity is surrounded by an annular foundation element. The central cavity can be used for different purposes here, for example for embedding heat exchanger elements for geothermal purposes. In this case, heat can be extracted from the soil by means of a heat pump and used for heating purposes, in particular in buildings constructed on foundation elements. Alternatively, the heat can also be conducted out into the soil for cooling purposes, so that, for example, air conditioning and cooling in buildings can be achieved. However, the cavity can also be used for measurement technical purposes and for inspection.
According to a further development of the invention, it is particularly advantageous when the hole is being constructed to remove soil material and to convey it as a dredged product out of the hole and to guide at least a part of the dredged product back into the central cavity of the annular foundation element. This is advantageous in two ways: on the one hand, the excavated material can then be returned to the soil, so that the excavated material does not have to be transported away from the construction site and buried. Thus, transportation and landfill costs can be saved. On the other hand, the foundation element is additionally reinforced by the filled central hollow space, so that the strength and therefore also the load-bearing capacity of the foundation element is increased.
In principle, the holes for forming the foundation element can be constructed in any manner. According to one embodiment variant of the invention, it is particularly advantageous if the bore is formed by drilling with a circular cross section or by milling with an angular cross section. In drilling, not only material-removing drilling but also displacement drilling may be used. In the displacement drilling, soil material is displaced from the region of the hole into the surrounding soil by means of a displacement drill.
The angular cross section can be achieved in particular by means of a slotted wall milling (schlitzwandfr ä se), with which slotted wall segments with a preferably rectangular cross section are constructed.
In the sense of the present invention, a foundation element is to be understood in a broad sense, wherein the foundation element can be used not only for absorbing building loads, but for example also for forming a sealing wall by adjoining foundation elements.
Another preferred method variant of the invention is to mix the soil material with the concrete mass. It is thus possible to construct what are known as soil mortars which can be introduced into the soil as a hardenable mass to form an annular foundation element. However, the annular foundation element can also be constructed from a concrete mass or from a soil mortar having a higher strength, while a soil mortar having a lower strength is introduced into the central cavity. Hereby, a saving of dredged material can be achieved while the foundation element still has a relatively high strength and load-bearing capacity.
The invention also comprises a foundation element which is characterized in that it is constructed annularly from a hardenable substance in the soil. The foundation element is thus built up from a hardenable substance not over the entire cross section of the foundation element but only in the annular region. The foundation element is in particular built by the method according to the invention described above. The above advantages can be achieved by the foundation element according to the invention.
According to a further development of the invention, it is particularly advantageous to form a central cavity in the annular foundation element. The central cavity can be used to receive different functional components, such as heat exchanger elements or measuring instruments.
According to a further embodiment variant of the invention, it is particularly advantageous if the central hollow space in the annular foundation element is filled with a non-hardening material, in particular with removed soil material. Thus, transportation costs and landfill costs can be saved.
Drawings
The invention is further described with the aid of preferred embodiments which are schematically shown in the drawings. In the drawings:
fig. 1 shows a cross-sectional view in the construction of a foundation element with an embedded insert according to the invention; and
fig. 2 shows a cross-sectional view of the foundation element of fig. 1 after removal of the insert.
Detailed Description
In order to construct the foundation element 10 according to the invention in the soil 5, the hole 7 is first introduced into the soil 5. The construction of the holes 7 can be carried out in a conventional manner, for example by drilling or milling. The borehole may be a cased borehole or a uncased borehole.
The insert 20 is inserted into the central region of the bore 7 before the hardenable mass is introduced into the bore 7. The insert 20 can be inserted already during the driving of the bore 7 or only after the bore 7 has been completed. In the exemplary embodiment shown, the insert body 20 is formed from a total of three annular segments 22, which are connected to one another axially.
The insert 20 is inserted into the bore 7 approximately centrally in such a way that a defined distance is formed between the outer side of the insert 20 and the peripheral wall 8 of the bore 7. This creates an intermediate space which is filled with a hardenable substance for forming the annular foundation element 10.
In the embodiment shown, the insert 20 is placed onto the bottom 14 of the hole 7. The inlay 20 has a coating 24 at its outer side, which may be a film or a fabric, for example. The envelope 24 may be a missing element which serves primarily to prevent the hardenable mass from adhering directly to the insert 20. The cover 24 can be opened or closed at its lower end.
After the hardening of the hardening compound for forming the annular foundation element 10, the insert body 20 is pulled upward out of the hole 7, so that a central cavity 12 is formed in the annular foundation element 10, as is clearly shown in fig. 2. The cladding 24 remains on the inside of the annular foundation element 10 and can be used, for example, to additionally seal the central cavity 12 with respect to the annular foundation element 10.
According to one embodiment of the invention, material of the soil present as dredges 30 when constructing holes 7 may be introduced into central cavity 12. Thereby reducing the amount of dredged material 30 that must be removed from the job site and landfilled. At the same time, cutouts 30 serve in the illustrated embodiment for stabilization and internal support of annular foundation element 10. The ability of the foundation element to unload building loads into the soil 5 is here mainly achieved by the outer side of the foundation element 10 rubbing against the circumference of the circumferential wall 8 of the hole 7.
Claims (13)
1. Method for constructing a foundation element (10) in soil (5), wherein,
-building a hole (7) in the soil (5), and
-introducing a hardenable substance into the hole (7), the substance hardening into the foundation element (10),
it is characterized in that the preparation method is characterized in that,
-inserting an insert (20) into the hole (7) substantially centrally, the insert being spaced apart from a peripheral wall (8) of the hole (7), wherein an annular intermediate space is formed between the peripheral wall (8) of the hole (7) and the insert (20), and
-introducing a hardenable mass into the annular intermediate space, the mass hardening to the annular foundation element (10).
2. Method according to claim 1, characterized in that the insert body (20) is configured tubular.
3. Method according to claim 1 or 2, characterized in that the insert body (20) is surrounded at its outer side by a cladding element (24) and that after hardening of the substance into an annular foundation element (10), the insert body (20) is extracted from the foundation element (10), wherein the cladding element (24) remains at the annular foundation element (10).
4. A method according to any one of claims 1 to 3, characterised in that one or more reinforcement elements are inserted into the annular intermediate space before the substance hardens.
5. A method according to any one of claims 1-4, characterised in that the annular foundation element (10) is designed to absorb the desired foundation load.
6. The method according to any one of claims 1 to 5, characterized in that the insert (20) is formed by an annular section (22).
7. Method according to any one of claims 1-6, characterized in that the central cavity (12) is surrounded by an annular foundation element (10).
8. Method according to claim 7, characterized in that in the construction of the hole (7) soil material is removed and transported out of the hole (7) as dredged material (30), and
directing at least a portion of the dredged material (30) back into the central cavity (12) of the annular foundation element (10).
9. Method according to any one of claims 1 to 8, characterized in that the hole (7) is constructed by drilling with a circular cross section or by milling with an angular cross section.
10. A method according to any one of claims 1 to 9, characterised in that the soil material is mixed with the concrete mass.
11. Foundation element, in particular built according to a method according to one of claims 1 to 10,
the foundation element (10) is constructed annularly from a hardenable substance in the soil (5).
12. The foundation element as claimed in claim 11, characterized in that a central cavity (12) is formed in the annular foundation element (10).
13. The foundation element according to claim 12, characterized in that the central cavity (12) in the annular foundation element (10) is filled with a non-hardening material, in particular a removed soil material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20150504.7 | 2020-01-07 | ||
| EP20150504.7A EP3848512B1 (en) | 2020-01-07 | 2020-01-07 | Method for creating a foundation element in the ground and foundation element |
| PCT/EP2020/086375 WO2021139978A1 (en) | 2020-01-07 | 2020-12-16 | Method for creating a foundation element in the ground and foundation element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114466959A true CN114466959A (en) | 2022-05-10 |
Family
ID=69143461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080070349.6A Pending CN114466959A (en) | 2020-01-07 | 2020-12-16 | Method for constructing a foundation element in the soil and foundation element |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20220298738A1 (en) |
| EP (1) | EP3848512B1 (en) |
| CN (1) | CN114466959A (en) |
| WO (1) | WO2021139978A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115125965A (en) * | 2022-07-05 | 2022-09-30 | 深圳市工勘岩土集团有限公司 | Joint box structure for foundation pit supporting occluded plain pile forming |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US898013A (en) * | 1905-08-21 | 1908-09-08 | Frank W Skinner | Piling and method of constructing the same. |
| JPS6436820A (en) * | 1987-07-31 | 1989-02-07 | Toho Kk | Filler grouting work by h-steel drawing in underground structure construction |
| CN105612290A (en) * | 2013-08-14 | 2016-05-25 | 包尔特殊基础工程有限公司 | Method and device for creating a foundation element in the ground |
| US20180135270A1 (en) * | 2016-11-11 | 2018-05-17 | Bauer Spezialtiefbau Gmbh | Foundation element and method for producing a foundation element |
| CN207436046U (en) * | 2017-03-27 | 2018-06-01 | 辽宁省建筑设计研究院岩土工程公司 | A kind of hollow pressure fills support pile |
| CN208933993U (en) * | 2018-07-18 | 2019-06-04 | 华电重工股份有限公司 | A kind of embedding rock single pile of offshore wind farm and its construction system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3034304A (en) * | 1958-12-29 | 1962-05-15 | Raymond Int Inc | Methods and apparatus for making concrete pile shells and piles |
| US3090204A (en) * | 1959-03-17 | 1963-05-21 | Raymond Int Inc | Method of forming concrete shell in ground |
| DE1484511A1 (en) * | 1961-10-13 | 1969-05-08 | Louis Menard | Process for the production of concrete piles |
| BE630392A (en) * | 1962-05-08 | |||
| US4063423A (en) * | 1975-05-15 | 1977-12-20 | Konstantin Stepanovich Gurkov | Method of making built-in-place reinforced concrete piles |
| US4621950A (en) * | 1983-01-18 | 1986-11-11 | Electric Power Research Institute | Techniques for establishing inground support footings and for strengthening and stabilizing the soil at inground locations |
| US20120167487A1 (en) * | 2010-12-20 | 2012-07-05 | Fluor Technologies Corporation | Locatable and embeddable anchor point covers |
| CN107012861B (en) * | 2017-03-21 | 2019-01-25 | 重庆大学 | A kind of discrete material core expansive concrete stake and its construction method |
| CN111733799A (en) * | 2020-06-10 | 2020-10-02 | 合肥工业大学 | Forming method for self-wall-protection large-diameter concrete hollow pipe column foundation |
| CN111733805A (en) * | 2020-06-10 | 2020-10-02 | 合肥工业大学 | Underwater core mould system for cast-in-situ large-diameter hollow pipe column foundation |
-
2020
- 2020-01-07 EP EP20150504.7A patent/EP3848512B1/en active Active
- 2020-12-16 WO PCT/EP2020/086375 patent/WO2021139978A1/en active Application Filing
- 2020-12-16 US US17/634,496 patent/US20220298738A1/en active Pending
- 2020-12-16 CN CN202080070349.6A patent/CN114466959A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US898013A (en) * | 1905-08-21 | 1908-09-08 | Frank W Skinner | Piling and method of constructing the same. |
| JPS6436820A (en) * | 1987-07-31 | 1989-02-07 | Toho Kk | Filler grouting work by h-steel drawing in underground structure construction |
| CN105612290A (en) * | 2013-08-14 | 2016-05-25 | 包尔特殊基础工程有限公司 | Method and device for creating a foundation element in the ground |
| US20180135270A1 (en) * | 2016-11-11 | 2018-05-17 | Bauer Spezialtiefbau Gmbh | Foundation element and method for producing a foundation element |
| CN207436046U (en) * | 2017-03-27 | 2018-06-01 | 辽宁省建筑设计研究院岩土工程公司 | A kind of hollow pressure fills support pile |
| CN208933993U (en) * | 2018-07-18 | 2019-06-04 | 华电重工股份有限公司 | A kind of embedding rock single pile of offshore wind farm and its construction system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3848512B1 (en) | 2023-08-16 |
| EP3848512C0 (en) | 2023-08-16 |
| EP3848512A1 (en) | 2021-07-14 |
| US20220298738A1 (en) | 2022-09-22 |
| WO2021139978A1 (en) | 2021-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5274145B2 (en) | Cast-in-place pile and its construction method | |
| CN103603346B (en) | Construction method for drawing-resistant thorn-shaped pile | |
| KR20110041391A (en) | Pile structure | |
| JP4463140B2 (en) | Seismic reinforcement method for masonry walls | |
| JP6987559B2 (en) | Construction method of continuous underground wall and steel pipe pile | |
| CN114466959A (en) | Method for constructing a foundation element in the soil and foundation element | |
| JP2008231810A (en) | Underground structure construction method | |
| KR100977526B1 (en) | Small dia. pile and constructure method for it | |
| CN101161947A (en) | Integration method of lagging pile and dewatering well for foundation ditch support | |
| CN108086307A (en) | Compound mini pile is perfused in concrete filled steel tube borehole | |
| KR102185255B1 (en) | Construction method of composite pile with extensioned tip | |
| KR100991248B1 (en) | Foundation construction method of micro pile using pack and pile used in the same | |
| CN204780943U (en) | H type precast concrete pile and excavation supporting device | |
| KR20190012368A (en) | Smallcaliber composite pile wall using small drilling rig at adjacent building proximity section and construction method of the same | |
| JP2010209547A (en) | Wall pile and method for creating the same | |
| JP2018016954A (en) | Construction method of underground wall | |
| JP2006161450A (en) | Pile foundation method | |
| KR100411662B1 (en) | Construction Method of Prestressed spun High strength Concrete Pile | |
| JP3919852B2 (en) | Method for construction of cast-in-place pile | |
| KR101375155B1 (en) | Construction Method of Reinforced Bar Insert Type in-situ Concrete Pile | |
| JP2010095941A (en) | Installation method for precast pile | |
| JP4425073B2 (en) | Cast-in-place concrete construction method | |
| CN103967016A (en) | Novel vertical pit support structure and construction method thereof | |
| KR200375610Y1 (en) | Cast in place concrete pile using vibro magnetic shovel hammer | |
| KR100450444B1 (en) | Construction Method of Complex Pile Consisting Prestressed spun High strength Concrete Pile and Anchor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |