A stabilization assembly for a building foundation

Abstract

The present disclosure generally relates to a stabilization assembly (1) for a building foundation (2) comprising an edge element (3) for arrangement above the ground and a ground anchoring block (4) for arrangement below the ground, wherein the stabilization assembly further comprises a connection element (5) attached to the ground-anchoring block (4), and wherein the connection element (5) is configured to extend upwardly from the ground-anchoring block (4) and to be attached to the edge element (3), to a load-bearing component of the building foundation (2) or to a building arranged on the building foundation (2). The present disclosure also relates to a building foundation (2) comprising the stabilization assembly (1), to a building comprising the building foundation (2), and to a method for forming a building foundation (2).

Description

[0001] A STABILIZATION ASSEMBLY FOR A BUILDING FOUNDATION

[0002] TECHNICAL FIELD

[0003] The present disclosure generally relates to a stabilization assembly for a building foundation comprising an edge element for arrangement above the ground and a ground anchoring block for arrangement below the ground. The present disclosure also relates to a building foundation comprising the stabilization assembly, a building comprising the building foundation, and to a method for forming a building foundation.

[0004] BACKGROUND

[0005] A building foundation is the lowermost load-bearing part of a building, which is arranged in direct contact with the soil or the ground.

[0006] Generally, a building is exposed to a variety of loads and forces acting thereon, and the foundation must handle such forces and loads in a reliable manner. For example, the building foundation must support the building’s weight, resist natural forces exerted on the building (e.g. winds, tornadoes, floods, frost heaves etc.), and distribute the pressure exerted from the soil underneath the foundation.

[0007] To date, the most commonly used building foundations are concrete ground plates. A concrete ground plate is typically formed by casting concrete on a layer of insulating material.

[0008] A concrete ground plate is casted in situ; i.e. at the building site. Before the construction work can be initiated, the concrete ground plate must be dried.

[0009] The drying and curing of the concrete is typically a lengthy procedure, which is also largely dependent on weather conditions. For example, cracks may be formed in the concrete ground plate, which may be expensive and difficult to repair, and which may also compromise the structural integrity of the building.

[0010] Furthermore, a major concern with foundations formed by casting of concrete is their negative environmental impact. Concrete is not regarded as a sustainable material, and a large proportion of the global carbon dioxide emissions come from concrete.

[0011] There is a growing interest in reducing carbon emissions stemming from concrete. In this regard, there is a general desire to reduce the amount of concrete utilized in building foundations.

[0012] In view of the above-mentioned challenges, there is a need to provide a sustainable building foundation with a significantly reduced amount of concrete. Such a building foundation should be capable of handling the loads and forces acting on a building arranged thereon such that the building and the foundation remain stable, safe, and resilient over time. Furthermore, such a building foundation should simplify and expedite the construction work at a building site.

[0013] SUMMARY

[0014] In view of the above, an object of the present disclosure is to provide a sustainable and reliable building foundation, which simplifies and expedites the construction work at a building site.

[0015] According to a first aspect, there is provided a stabilization assembly for a building foundation comprising an edge element for arrangement above the ground and a ground anchoring block for arrangement below the ground, wherein the stabilization assembly further comprises a connection element attached to the ground-anchoring block, and wherein the connection element is configured to extend upwardly from the groundanchoring block and to be attached to the edge element, to a load-bearing component of the building foundation or to a building arranged on the building foundation.

[0016] The present invention is based on the realization that the utilization of a stabilization assembly as defined hereinabove in a building foundation allows for the omission of the step of casting concrete. Hence, the amount of concrete utilized in the building foundation is drastically reduced. Consequently, the carbon footprint is also significantly reduced compared to conventional building foundations, i.e. concrete ground plates.

[0017] Furthermore, the omission of the concrete casting step allows for the construction work to initiate and progress more quickly since there is no need to await the lengthy drying or curing steps associated with concrete casting.

[0018] A plurality of stabilization assemblies (as described hereinabove) is typically used to form a building foundation. The stabilization assemblies are arranged to define the perimeter of the building foundation or base. Instead of casting concrete in the area defined by the stabilization assemblies (“foundation area”), a significantly lighter and more environmentally friendly insulation material can be utilized.

[0019] The stabilization assembly of the present disclosure is configured to handle and distribute the forces and loads exerted on the foundation and on the building formed thereon. More particularly, the ground anchoring blocks below the ground (in an excavation) are configured to handle the forces, moments, and applied loads that act on the foundation from the structure and the environment, e.g. wind loads. The ground anchoring blocks effectively counteract lifting loads and secure that lifting loads are distributed over a larger surface area. Accordingly, the overall load intensity is reduced.

[0020] The provision of ground-anchoring blocks (attachable to the edge elements) below the ground allows for a significantly lighter insulation or filling material to be utilized. Accordingly, by utilizing the stabilization assemblies as described hereinabove, a substantially concrete-free building foundation can be provided.

[0021] The ground-anchoring block is typically formed from a durable, form stable material with a high strength. For example, the ground-anchoring block may comprise a composite material, a ceramic or plastic material, or concrete.

[0022] Preferably, the ground-anchoring block comprises concrete.

[0023] Accordingly, the building foundation may comprise a certain amount of concrete, but the amount of concrete is still drastically reduced since the concrete casting step is omitted.

[0024] The use of concrete in the ground-anchoring blocks is associated with high strength, durability, and an efficient distribution of lifting loads acting on the building structure.

[0025] The ground-anchoring block is not limited to a specific size or surface area. The size and surface area of the ground-anchoring block may vary depending on the type of building or house to be formed, ground conditions etc.

[0026] For example, the ground-anchoring block may have a surface area of from 900 to 4900 cm2, preferably from 1600 to 3600 cm2.

[0027] A surface area in the above-mentioned ranges allows for an efficient distribution of loads, e.g. lifting loads.

[0028] In exemplary embodiments, the connection element has a height of at least 20 cm, preferably from 35 to 70 cm.

[0029] The connection elements are configured to extend upwardly from the load bearing blocks and to be attached to the edge elements, or to load-bearing components of a building foundation. It is also conceivable that the connection elements are attached to a building arranged on the building foundation. Accordingly, the connection elements are configured to extend from the area below the ground and to be attached to an element, e.g. the edge element being arranged above the ground.

[0030] Typically, the ground-anchoring blocks are arranged at least 15 cm, preferably at least 30 cm, more preferably at least 40 cm below the ground. The connection elements must therefore be slightly higher to enable attachment to the edge elements, load-bearing components of the building foundation or building arranged above the ground.

[0031] The connection element preferably comprises stainless steel.

[0032] Stainless steel is resistant to corrosion and does not rust or corrode easily.

[0033] In exemplary embodiments, the edge element may comprise a first panel comprising an insulation material, preferably cellular plastics, and a reinforcement bar arranged on top of the first panel.

[0034] The reinforcement bar is used to support wall attachment. The reinforcement bar is configured to deal with concentrated loads, e.g. point loads, and line loads stemming from walls or other structural elements that transfer loads in a linear fashion. The reinforcement bar secures that such loads are distributed in an efficient manner in the ground.

[0035] The first panel preferably comprises a form stable and hard insulation material, preferably cellular plastics. Cellular plastics has an insulating and load-distributing function.

[0036] In exemplary embodiments, the reinforcement bar may comprise wood or concrete. Preferably, the reinforcement bar comprises wood.

[0037] Wood is preferred to minimize the amount of concrete in the final building foundation.

[0038] In exemplary embodiments, the edge element may further comprise a second panel comprising an insulation material, preferably cellular plastics, wherein the second panel is arranged between the reinforcement bar and the first panel.

[0039] Accordingly, the edge element may comprise, from top-to-bottom, a reinforcement bar, a second panel, and a first panel.

[0040] This configuration may be beneficial for heavier buildings or houses, as it provides for a more efficient load distribution. Furthermore, this configuration may be beneficial for improved insulation purposes.

[0041] In exemplary embodiments, the stabilization assembly further comprises a U- profile element, wherein the U-profile element is arranged to enclose at least a portion of the second panel.

[0042] The U-profile element reinforces the edge element and increases its structural rigidity. The U-profile element is advantageous as it distributes pressure from building wall panels arranged on the edge elements more evenly across the second panel. This minimizes localized stress points and reduces the risk of deformation of the second panel and / or the other components of the stabilization assembly. Furthermore, an efficient transfer and distribution of load acting on the foundation is accomplished.

[0043] The edge element may further comprise a side panel having a first surface and an opposing second surface; the first panel, the reinforcement bar, and optionally the second panel (if present) being arranged against the first surface and extend in a direction perpendicular to the first surface of the side panel.

[0044] The provision of a side panel may be beneficial to prevent heat loss due to thermal bridging.

[0045] It is also conceivable that the side panel is arranged on the first panel such that the first panel and the side panel form an L-element. The reinforcement bar and the second panel (if present) may be arranged above the first panel. The reinforcement bar and the second panel (if present) may be arranged against the first surface of the side panel and extend in a direction perpendicular to the first surface.

[0046] The height of the side panel typically corresponds to the combined thickness, of the reinforcement bar (ti), the first panel (t2), and optionally the second panel (E), if present.

[0047] Preferably, the edge element is void of concrete.

[0048] Eliminating concrete in the edge element significantly lowers the carbon footprint and is associated with sustainable construction practices. Furthermore, the absence of concrete makes the edge element lighter, thereby simplifying transportation, handling, and installation on-site.

[0049] According to another aspect, there is provided a building foundation comprising a plurality of stabilization assemblies as described hereinbefore.

[0050] The plurality of stabilization assemblies is arranged to define a foundation area, wherein the foundation area comprises at least a first foundation layer comprising a plurality of first foundation blocks, wherein the first foundation blocks comprise an insulation material.

[0051] Each of the first foundation blocks may comprise a first layer comprising the insulation material and a second layer arranged on top of the first layer, wherein the second layer comprises sheet metal, wood, plastics, e.g. acrylic plastics, or fiber glass.

[0052] The second layer may form the uppermost layer of the foundation area; i.e. the uppermost layer of the foundation base. The second layer secures an even pressure distribution and is also beneficial for isolation purposes. The second layer protects the foundation during the construction work. The foundation area may comprise at least a second foundation layer comprising a plurality of second foundation blocks arranged next to each other, wherein the second foundation layer is arranged below the first foundation layer, and wherein the second foundation blocks comprise an insulation material.

[0053] The first and / or the second foundation blocks preferably comprise cellular plastics, e.g. expanded polystyrene (EPS), extruded polystyrene foam (XPS), a polyurethane rigid foam (PUR), polyisocyanurate (PIR), foam glass, or a combination thereof.

[0054] Hence, the foundation area may comprise at least two layers of cellular plastics blocks being supported, at each peripheral edge, by the stabilization assemblies described hereinbefore.

[0055] The thickness, of the first foundation blocks may correspond to the thickness, ti, of the reinforcement bar of the edge element, and wherein the thickness of the second foundation blocks may correspond to the thickness, t2, of the first panel.

[0056] In exemplary embodiments, the building foundation may further comprise a third foundation layer comprising a plurality of third foundation blocks arranged next to each other; the third layer being arranged between the first and second layers, wherein the thickness of the third foundation blocks may correspond to the thickness, t3, of the second panel of the edge element.

[0057] In exemplary embodiments, the building foundation further comprises a plurality of Z-profile elements arranged to extend across the foundation area from a first edge of the foundation area to an opposing, second edge.

[0058] The Z-profile elements provide structural reinforcement to the building foundation, and counteract rotational forces exerted thereon, particularly at the edges.

[0059] The Z-profile element comprises a top flange, a bottom flange, and a wall portion connecting the top flange with the bottom flange such that the element has the general shape of the letter Z.

[0060] A plurality of Z-profile elements may be arranged in one or more lines extending across the foundation area from a first edge of the foundation area to an opposing, second edge. The foundation blocks are arranged between the lines defined by the Z-profile elements.

[0061] The Z-profile elements may e.g. be attached to the edge elements of the stabilization assemblies (at the edges of the building foundation). For example, in embodiments where the stabilization assembly comprises a U-profile element, the Z-profile element may be attached to the U-profile element. The Z-profile elements act as bracing elements that hold the foundation blocks in place and reduce their lateral displacement under applied loads. Furthermore, this arrangement may distribute loads in an efficient manner and mitigate stress concentrations.

[0062] In exemplary embodiments, the first foundation layer, and the second and third foundation layers, if present, are void of concrete.

[0063] This way, a sustainable, light, and environmentally friendly building foundation is provided. As mentioned hereinbefore, no concrete casting step is required, which allows for the construction work to proceed fast and efficient.

[0064] According to another aspect, there is provided a building comprising the building foundation as described hereinabove.

[0065] According to yet another aspect, there is provided a method for forming a building foundation comprising: a) excavating an area of the ground where the building foundation is to be arranged; b) arranging a plurality of ground anchoring blocks in the excavated area, wherein connection elements are attached to the ground-anchoring blocks, c) filling the excavated area with at least one filling material; d) connecting an edge element to each of the connection elements; the connection element being attached to the edge element, to a load-bearing component of the building foundation or to a building arranged on the building foundation, wherein the edge elements are arranged to define a foundation area; e) providing at least a first foundation layer comprising a plurality of first foundation blocks in the foundation area, wherein the first foundation blocks comprise an insulating material.

[0066] The method may further comprise a step d’) of providing at least one second foundation layer comprising a plurality of second foundation blocks below the first foundation layer, wherein the second foundation blocks comprise an insulating material.

[0067] Further features of, and advantages with, the present disclosure will become apparent when studying the appended claims and the following description. The skilled addressee realizes that different features of the present disclosure may be combined to create embodiments other than those described in the following, without departing from the scope of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0068] The various aspects of the present disclosure, including its particular features and advantages, will be readily understood from the following detailed description and the accompanying drawings, in which:

[0069] Figure la schematically illustrates a stabilization assembly according to an exemplary embodiment of the present disclosure.

[0070] Figure lb schematically illustrates a split view of the edge element of the stabilization element illustrated in figure la.

[0071] Figure 2a schematically illustrates a building foundation comprising a plurality of stabilization assemblies according to an exemplary embodiment of the present disclosure.

[0072] Figure 2b schematically illustrates a zoomed-in, and partially cut-out view of the building foundation of figure 2a.

[0073] Figure 2c schematically illustrates a cross-sectional view of the building foundation of figure 2a, wherein the stabilization assembly is viewable both above and below the ground.

[0074] Figure 3a illustrates a building foundation comprising a plurality of Z-profile elements arranged in lines and extending across the foundation area.

[0075] Figure 3b schematically illustrates a cross-sectional view of a Z-profile element according to an exemplary embodiment of the present disclosure.

[0076] DETAILED DESCRIPTION

[0077] The present disclosure will now be described more fully hereinafter with reference to the accompanying drawings, in which currently preferred embodiments of the present disclosure are shown. The present disclosure may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and fully convey the scope of the present disclosure to the skilled person. Like reference characters refer to like elements throughout.

[0078] In figures la-b, and 2c, a stabilization assembly according to an exemplary embodiment of the present disclosure is schematically illustrated. The stabilization assembly is configured for use in a building foundation as illustrated in e.g. figures 2a and 2b.

[0079] The stabilization assembly 1 comprises an edge element 3 for arrangement above the ground and a ground anchoring block 4 for arrangement below the ground, wherein the stabilization assembly 1 further comprises a connection element 5 attached to the ground- anchoring block 4, and wherein the connection element 5 is configured to extend upwardly from the ground-anchoring block 4 and to be attached to the edge element 3. The connection element 5 may also be attached to a load-bearing component of the building foundation 2, or to a building arranged on the building foundation.

[0080] As used herein, the term “stabilization assembly” means an assembly of components forming a stable and reliable foundation base. The stabilization assembly comprises at least an edge element (arranged above the ground), a ground anchoring block (arranged below the ground) and a connection element, which connects e.g. the edge element with the ground anchoring element. A plurality of stabilization assemblies is used to form a building foundation. The stabilization assemblies are arranged to define a foundation area.

[0081] As used herein, the term “edge element” means an element which forms a peripheral edge portion of the building foundation. A plurality of edge elements may be arranged next to each other to define the foundation area. The edge elements are configured to be arranged “above the ground”; i.e. above the surface of the ground. Hence, the edge elements are arranged on the ground surface and form raised elements. The area defined by the raised edge elements is referred to as the “foundation area”. The edge elements may be attached to one another by means known to the skilled person. The edge element may comprise a plurality of components, e.g. a first panel, a second panel, and a reinforcement bar, as will be described hereinbelow.

[0082] As used herein, the term “ground anchoring block” means an element that anchors the stabilization assembly to the ground. The ground anchoring block is to be arranged “below the ground”, i.e. below the surface of the ground. The ground anchoring block is arranged in an excavation. The ground anchoring block is a solid piece of a hard material. The ground-anchoring block preferably comprises a form stable material. For example, a ceramic, composite or plastic material is conceivable. Preferably, the groundanchoring block comprises concrete.

[0083] The ground-anchoring block is not limited to a specific shape, but may e.g. be rectangular, square-shaped, circular or oval. The ground-anchoring block may have a flat upper surface 4a and an opposing, flat lower surface 4b. The upper surface 4a of the load bearing block 4 is arranged to face the edge element 3. The lower surface 4b of the groundanchoring block 4 is arranged to face away from the edge element (see e.g. figure 2c).

[0084] The ground-anchoring block 4 is not limited to a specific size, but is preferably of a size which optimizes the distribution of lifting loads acting on the foundation and the building. However, the size or surface area of the ground-anchoring block may vary depending on the type of building or house, the type of soil or ground condition and the number of ground-anchoring blocks and distance between such ground-anchoring blocks when used in a building foundation.

[0085] For example, the ground-anchoring block may have a surface area of from 900 to 4900 cm2, preferably from 1600 to 3600 cm2.

[0086] The thickness of the ground-anchoring block 4 may be from 5 to 20 cm, e.g. from 8 to 15 cm.

[0087] As used herein, the term “connection element” means an elongated element configured to connect the ground anchoring element; i.e. ground-anchoring block (below the ground) with an element arranged above the ground, e.g. the edge element or a load-bearing component of the building foundation (arranged above the ground). Hence, as illustrated in figure 2c, a portion of the connection element 5 is arranged below the ground, and a portion is arranged above the ground. The ground surface is denoted 14 in figure 2c.

[0088] A “load-bearing component” of the building foundation may be a structural component forming part of the building foundation, e.g. a beam, joist or stud. The loadbearing component may also include the U-profile element of the stabilization assembly, or the Z-profile element of the building foundation mentioned hereinbefore.

[0089] As mentioned hereinbefore, the connection element may also be attached to a building arranged on the building foundation (or comprising the building foundation). For example, the connection element may be attached to a building wall, beam, joist, floor component,

[0090] The connection element 5 is typically firmly attached to the ground-anchoring block 4, e.g. by means of a bolt 15 or a screw (see e.g. figure 2c).

[0091] As illustrated in figure la and 2c, the connection element 5 extends upwardly from the upper surface 4a of the ground-anchoring block 4 in a direction substantially perpendicular to the upper surface 4a of the ground-anchoring block 4. Typically, the connection element 5 is attached to a central portion of the ground-anchoring block 4.

[0092] The connection element 5 may be attached to the edge element 3, to a loadbearing component of the building foundation 2 or to a building arranged on the building foundation 2 by any means known to the skilled person. For example, the connection element 5 may be attached to the edge element 3, the load-bearing component or building by means of at least one screw 16. The connection element 5 is not limited to a specific material. For example, the connection element may comprise steel, a plastic material, or a composite material, e.g. kevlar composite.

[0093] Preferably, the connection element 5 comprises stainless steel.

[0094] The connection element 5 is thereby prevented from rusting and / or corroding and remains durable in moist ground conditions.

[0095] For example, the connection element 5 may be a punched or perforated tape of stainless steel (building fittings). The connection element 5 may be partially enclosed by protective covering (denoted 17 in figure 2c).

[0096] The protective covering 17 may support the connection element 5 during the ground work; i.e. when the ground anchoring element is arranged in an excavated area of the ground.

[0097] The connection element is beneficial to resist and counteract traction.

[0098] As best illustrated in figure 2c, the connection element 5 may have a height, hi, of at least 20 cm, preferably from 35 to 70 cm.

[0099] The height, hi, corresponds to the distance between the upper surface 4a of the ground-anchoring block 4 to the point of the edge element where the connection element 5 is attached.

[0100] A portion of the connection element 5 can thus be arranged below the ground, and a portion can be arranged above the ground.

[0101] The edge element 3 of the stabilization assembly is best illustrated in figures la-b, and 2c.

[0102] The edge element 3 may comprise a first panel 6 comprising an insulation material, preferably cellular plastics, and a reinforcement bar 7 arranged on top of the first panel 6.

[0103] In exemplary embodiments, the connection element 5 may be attached to the reinforcement bar 7.

[0104] The edge element 3 may further comprise a second panel 8 comprising an insulation material, preferably cellular plastics, wherein the second panel 8 is arranged between the reinforcement bar 7 and the first panel 6.

[0105] Depending on the type, size and weight of the building, the edge element 3 may comprise one panel or two panels.

[0106] The first and / or the second panels (6 and 8) preferably comprise cellular plastics. For example, the cellular plastics may be expanded polystyrene (EPS), extruded polystyrene foam (XPS) or a combination thereof. Preferably, the first 6 and / or second 8 panels comprise XPS.

[0107] Preferably, the cellular plastics utilized in first 6 and / or second panel 8 of the edge element 3 has a high density and load-bearing capacity.

[0108] For example, the density of the cellular plastics used in the first 6 and / or second panel 8 of the edge element 3 is at least 300 kg / m3, e.g. at least 400 kg / m3.

[0109] The first 6 and / or the second 8 panels typically have a rectangular shape.

[0110] The first panel 6 has a top surface and a bottom surface, wherein the bottom surface is arranged to contact the ground 14. The first panel 6 further comprises four side walls extending between the bottom surface and the top surface.

[0111] The second panel 8 has a top surface and a bottom surface, wherein the bottom surface is arranged on top of the first panel 6. The second panel 8 further comprises four side walls extending between the bottom surface and the top surface.

[0112] The first panel 6 may have a thickness, t2, of from 3 to 20 cm, e.g. from 5 to 15 cm.

[0113] The thickness of the panel may also be referred to as the height of the panel.

[0114] The first panel 6 may have a length of from 60 to 180 cm, e.g. from 80 to 140 cm.

[0115] The first panel 6 may have a width of from 15 to 80 cm, e.g. from 30 to 70 cm.

[0116] In some embodiments, the thickness, t3, of the second panel 8 may correspond to the thickness, t2, of the first panel 6, as e.g. illustrated in figure 2c. Preferably, the thickness of the second panel 8 is higher than the thickness of the first panel 6. For example, the thickness of the second panel 8 may be from 2 to 10 times higher, e.g. from 3 to 5 times higher, than the thickness of the first panel 6.

[0117] The thickness, t3, of the second panel 8 may e.g. be from 10 to 40 cm, e.g. from 15 to 30 cm.

[0118] The length of the second panel 8 may correspond to the length of the first panel 6.

[0119] The width of the second panel 8 is typically smaller than the width of the first panel 6. For example, the width may be from 10 to 40 cm, e.g. from 15 to 30 cm.

[0120] The thickness, ti, of the reinforcement bar 7 may be from 3 to 20 cm, e.g. from 5 to 15 cm.

[0121] The length of the reinforcement bar 7 is typically larger than the length of the first panel, and the length of the second panel 8 (if present). For example, the length of the reinforcement bar 8 may be from 120 to 300 cm, e.g. from 160 to 250 cm.

[0122] The width of the reinforcement bar 7 may be from 5 to 55 cm, e.g. from 25 to 50 cm.

[0123] The width of the reinforcement bar is typically smaller than the width of the first panel 6, and the width of the second panel 8 (if present).

[0124] As illustrated in figure 2b, and 2c, the edge element 3 has the shape of a “staircase”. This is beneficial when foundation blocks are to be arranged in the area defined by the edge elements 3. The various layers of foundation blocks (11-13) may thus be arranged in an overlapping manner (see e.g. figure 2b).

[0125] The reinforcement bar 7 distributes pressure loads to the ground in an efficient manner. The reinforcement bar comprises a hard and form stable material capable of dealing with pressure loads and line loads. For example, the reinforcement bar 7 may comprise concrete, or wood. Preferably the reinforcement bar 7 comprises wood. Wood is a renewable and sustainable material with a lower carbon footprint.

[0126] For example, the reinforcement bar (7) may comprise laminated veneer lumber (LVL), glued laminated timber (glulam), or cross-laminated timber (CLT).

[0127] As illustrated in figure lb, and as mentioned hereinbefore, the second panel has a top surface and a bottom surface, and four side walls extending between the bottom surface and the top surface.

[0128] The second panel 8 may comprise a first side wall 8a facing the foundation area, and an opposing, second side wall 8b. The second side wall 8b faces away from the foundation area.

[0129] As illustrated in figure 2c, the stabilization assembly 1 may further comprise a U-profile element 19 arranged to enclose at least a portion of the second panel 8.

[0130] As used herein, the term “U-profile element” means an element having the general shape of the letter U. The U-profile element comprises a top flange 19a, a bottom flange 19b, and a wall portion 19c connecting the top flange 19a with the bottom flange 19b, wherein the wall portion 19c is arranged perpendicularly to the top 19a and bottom 19b flanges. The top 19a and bottom 19b flanges are arranged in parallel to each other and extend in the same directions.

[0131] The U-profile element 19 is typically formed from a single piece of material. For example, the U-profile element may be formed from sheet metal, steel, or a polymeric composite material. Typically, the U-profile element comprises sheet metal. That the “U-profile element is arranged to enclose at least a portion of the second panel” means that a portion of the second panel is inserted into the open channel formed by the U-profile element. The U-profile element 19 encloses a portion of the top surface, bottom surface and second side wall (denoted 8b in figure lb) of the second panel 8, as can be seen in figure 2c. Hence, the U-profile element 19 covers the second side wall 8b and a portion of the top and bottom surfaces of the second panel.

[0132] The U-profile element reinforces the second panel 8 and provides additional rigidity to the edge element 3, improving its resistance to deformation under load. Furthermore, the U-profile element 19 distributes pressure from wall panels or other structural components of a building arranged on the edge element evenly across the second panel 8.

[0133] Typically, the edge element further comprises a side panel 9 having a first surface 9a and an opposing second surface 9b, wherein the first panel, the reinforcement bar, and the second panel 8 (if present) are arranged against the first surface 9a of the side panel 9 and extend in a direction perpendicular to the first surface 9a of the side panel 9.

[0134] It is also conceivable that the side panel 9 is arranged on the first panel 6 such that the first panel 6 and the side panel 9 form an L-element. The reinforcement bar 7 and the second panel 8 (if present) may be arranged above the first panel 6. The reinforcement bar 7 and the second panel 8 (if present) may be arranged to extend against the first surface 9aof the side panel 9 and extend in a direction perpendicular to the first surface 9a.

[0135] In exemplary embodiments, the side panel 9 and the first panel 6 may be integral. Hence, the first panel 6 and the side panel 9 may form an integral L-shaped edge element.

[0136] The side panel 9 may comprise one single layer or more than one layer. As illustrated in figure lb, the side panel may comprise a first layer 9’ and a second layer 9”.

[0137] The first layer 9’may comprise cellular plastics. The second layer 9” may comprise fiber cement.

[0138] The height of the side panel 9 typically corresponds to the combined thickness of the first panel 6, and the reinforcement bar 9, and optionally, the second panel (if present). Preferably, the edge element 3 is void of concrete.

[0139] According to another aspect, there is provided a building foundation 2 comprising a plurality of stabilization assemblies 1 as described hereinbefore.

[0140] A “building foundation” is the lowest part of the building, house or civil structure that is in direct contact with the ground or soil. The building foundation is designed to transfer the loads from the structure above to the underlying ground, ensuring stability and safety.

[0141] As illustrated in figures 2a-c, the plurality of stabilization assemblies is arranged to define a foundation area 10, wherein the foundation area 10 comprises at least a first foundation layer comprising a plurality of first foundation blocks 11 arranged next to each other, wherein the first foundation blocks comprise an insulation material.

[0142] As used herein, the term “foundation area” means the area defined by the edge elements of the stabilization assemblies. The edge elements 3 form a closed path around the foundation area 10. One or several layers of foundation blocks (11-13) are arranged in the foundation area 10.

[0143] The term “first foundation layer comprising a plurality of first foundation blocks” means a layer extending across the entire surface area of the foundation area. The first foundation layer is formed by a plurality of first foundation blocks 11 which are arranged next to each other such that substantially no gaps are formed between the individual blocks 11.

[0144] The first foundation blocks 11 may be attached to each other by any suitable fastening means.

[0145] In some embodiments, each of the first foundation blocks 11 may comprise a first layer I la comprising an insulating material and a second layer 1 lb arranged on top of the first layer I la, wherein the second layer comprises sheet metal, wood, plastics, e.g. acrylic plastics, or fiber glass. Preferably, the second layer 1 lb comprises sheet metal.

[0146] The second layer forms the uppermost layer of the building foundation 2 (see figure 2a and 2b).

[0147] The second layer 1 lb may be adhesively attached to the first layer 1 la of the first foundation blocks 11.

[0148] In alternative embodiments, each of the first foundation blocks comprises one layer, i.e. a layer comprising an insulating material.

[0149] As illustrated in figures 2a-c, the foundation area may comprise at least a second foundation layer comprising a plurality of second foundation blocks 12 arranged next to each other, wherein the second foundation layer is arranged below the first foundation layer.

[0150] The term “second foundation layer comprising a plurality of foundation blocks” means a layer extending across the entire surface area of the foundation area. The second layer is formed by a plurality of second foundation blocks 12 which are arranged next to each other such that substantially no gaps are formed between the individual foundation blocks 12. The second foundation blocks 12 may be attached to each other by any suitable fastening means.

[0151] The second foundation layer is arranged below the first foundation layer. However, the second foundation layer need not be in direct contact with the first foundation layer. One or several additional layers (of insulation and / or foundation blocks) may be arranged between the first and the second foundation layers.

[0152] The insulating material of the first foundation blocks 11 may be the same material as used in the second foundation blocks 12 of the second layer.

[0153] For example, the first foundation blocks 11, and the second foundation blocks 12 may comprise cellular plastics, e.g. expanded polystyrene (EPS), extruded polystyrene foam (XPS), a polyurethane rigid foam (PUR), polyisocyanurate (PIR), foam glass, or a combination thereof, or a combination thereof.

[0154] Typically, the cellular plastics utilized in the first 6 and / or second 8 panel of the edge element 3 has a higher density and / or load-bearing capacity than the cellular plastics utilized in the first 11 and / or second 12 foundation blocks.

[0155] For example, the density and / or load-bearing capacity of the cellular plastics of the first panel of the edge element (and the second panel 8, if present) may be at least two times higher, e.g. at least three times higher, preferably at least four times higher than the density and / or load-bearing capacity of the cellular plastics of the foundation blocks.

[0156] Preferably, the density of the cellular plastics used in the first 6 and / or second panel 8 of the edge element 3 is at least 300 kg / m3, e.g. at least 400 kg / m3.

[0157] The density of the cellular plastics used in the first 11 and / or second 12 foundation blocks may be from 50 to 250 kg / m3, e.g. from 60 to 150 kg / m3.

[0158] As best illustrated in figures 2b-c, the building foundation may further comprise a third foundation layer comprising a plurality of third foundation blocks 13 arranged next to each other, wherein the third foundation blocks 13 comprise an insulating material. The third foundation layer may be arranged between the first foundation layer and the second foundation layer.

[0159] The term “third foundation layer comprising a plurality of third foundation blocks” means a layer extending across the entire surface area of the foundation area. The third layer is formed by a plurality of third foundation blocks 13 which are arranged next to each other such that substantially no gaps are formed between the individual foundation blocks 13. The third foundation blocks 13 may be attached to each other by any suitable fastening means.

[0160] The third foundation blocks 13 may comprise the same insulation material as the first 11 and second 12 foundation blocks.

[0161] The load-bearing capacity of the first, second, and third foundation blocks may be the same. It is also conceivable that the load-bearing capacity differs between the first, second, and third foundation blocks, respectively.

[0162] As mentioned hereinbefore, the building foundation may comprise additional layers of insulation blocks and / or foundation blocks.

[0163] As illustrated in figures 3a and 3b, the building foundation 2 may further comprise a plurality of Z-profile elements 20 arranged to extend across the foundation area from a first edge 10a of the foundation area to an opposing, second edge 10b.

[0164] As used herein, the term “Z-profile element” means an element comprising a top flange 20a, a bottom flange 20b, and a wall portion 20c connecting the top flange 20a with the bottom flange 20b. The wall portion 20c is arranged perpendicularly to the top flange 20a and the bottom flange 20b. The top 20a and bottom 20b flanges are arranged in parallel to each other, and extend in opposite directions, as best illustrated in figure 3b.

[0165] The Z-profile element has the general shape of the letter Z (albeit with a straight central part, herein referred to as a wall portion).

[0166] The Z-profile element is typically formed from a single piece of material. For example, the Z-profile element may be formed from sheet metal, steel, or a polymeric composite material. Typically, the Z-profile element comprises sheet metal.

[0167] A plurality of Z-profile elements 20 may be arranged in one or more lines extending across the foundation area from a first edge 10a of the foundation area 10 to an opposing, second edge 10b.

[0168] The number of Z-profile elements 20 used, and the number of lines may vary depending on the size of the building foundation, and the size of the building. The foundation blocks are arranged between the lines defined by the Z-profile elements 20.

[0169] In embodiments where the building foundation comprises a first, second, and a third foundation layer, the top flange 20a of the Z-profile element 20 may be configured to engage with the top surface of the third foundation block (denoted 13 in figure 2c). The bottom flange 20b of the Z-profile element may be configured to engage with the bottom surface of the second foundation block (denoted 12 in figure 2c). In such embodiments, the first foundation layer comprising the first foundation blocks (denoted 11 in figure 2c) may be arranged above the top flanges 20a of the Z-profile elements 20, and on top of the third foundation layer comprising the third foundation blocks 13.

[0170] The Z-profile elements 20 may be anchored to the edge elements 3 of the stabilization assemblies 1 at the first 10a and second 10b edges of the building foundation 2.

[0171] The Z-profile element 20 may e.g. be anchored to the U-profile element 19 of the stabilization assembly (if present). This may be beneficial to further enhance the stability of the building foundation, and to counteract rotational forces exerted on the foundation, particularly at the edges.

[0172] The first foundation layer, and the second and third foundation layers, if present, are void of concrete.

[0173] According to another aspect, there is provided a building comprising the building foundation as described hereinabove.

[0174] According to yet another aspect, there is provided a method for forming a building foundation comprising: a) excavating an area of the ground where the building foundation 2 is to be arranged; b) arranging a plurality of ground anchoring blocks in the excavated area, wherein connection elements 5 are attached to the ground-anchoring blocks 4; c) filling the excavated area with at least one filling material; d) attaching an edge element 3 to each of the connection elements 5 to form a plurality of stabilization assemblies 1, wherein the edge elements 3 are arranged to define a foundation area 10; e) providing a first foundation layer comprising a plurality of first foundation blocks 11 in the foundation area 10, wherein the first foundation blocks 11 comprise an insulating material.

[0175] The step a) of excavating an area of the ground is preferably performed by excavating at an inclined angle. The angle of the sides of the excavation preferably corresponds to the angle of repose for the filling material used in step c).

[0176] The angle of repose, or critical angle of repose of a material is the steepest angle of descent relative to the horizontal plane on which the material can be piled without collapsing or slumping. In this regard, the total weight of the filling material can be utilized to counteract lifting loads.

[0177] Subsequently, the ground-anchoring blocks 4 are arranged in the excavated area (step b). The connection elements 5 may be pre-attached to the ground-anchoring blocks or may be attached to the ground-anchoring blocks 4 after these have been arranged in the excavated area.

[0178] Typically, drainage pipes (denoted 18 in figure 2c) are arranged in the excavated area to secure removal of water.

[0179] The excavated area is then back-filled with a suitable filling material. The filling material may e.g. be gravel, and / or macadam (step c). The excavated area may also be filled with a top layer of wood chips.

[0180] The knowledge of the angle of repose for a specific filling material allows for an accurate calculation of lifting loads, and a means to counteract such lifting loads.

[0181] When the excavated area has been backfilled such that the ground surface is even and smooth, the edge elements 3 may be attached to, or connected with (e.g. arranged in contact with) the connection elements 5 that are raised above the ground surface (step d). It is also conceivable that the connection elements 5 are attached to a load-bearing component of the building foundation, or to a building arranged on the building foundation, as described hereinbefore.

[0182] The connection elements 5 may e.g. be attached to the reinforcement bar of the edge element.

[0183] The connection of the edge elements 3 with the connection elements 5 yield the stabilization assemblies as described hereinbefore. The stabilization assemblies are arranged to define a foundation area.

[0184] The edge elements 3 form a closed path around the foundation area 10.

[0185] As a next step, a first foundation layer comprising a plurality of first foundation blocks 11 are arranged in the foundation area 10.

[0186] In order to enhance the load-bearing capacity of the foundation area 10, the method may comprise a step d’) of arranging at least a second foundation layer comprising a plurality of second foundation blocks 12 below the first foundation layer, wherein the second foundation blocks 12 comprise an insulating material.

[0187] Step d') is typically performed after step d) and prior to step e).

[0188] As mentioned hereinbefore, the building foundation may comprise one or several additional foundation layers.

[0189] Hence, the method may comprise a step d”) of providing at least a third foundation layer comprising a plurality of third foundation blocks between said first and second foundation layers. Step d”) is typically performed after step d’) and prior to step e).

[0190] Terms, definitions and embodiments of all aspects of the present disclosure apply mutatis mutandis to the other aspects of the present disclosure.

[0191] Even though the present disclosure has been described with reference to specific exemplifying embodiments thereof, many different alterations, modifications and the like will become apparent for those skilled in the art.

[0192] Variations to the disclosed embodiments can be understood and effected by the skilled addressee in practicing the present disclosure, from a study of the drawings, the disclosure, and the appended claims. Furthermore, in the claims, the word "comprising" does not exclude other elements or steps, and the indefinite article "a" or "an" does not exclude a plurality.

Claims

CLAIMS1. A stabilization assembly (1) for a building foundation (2) comprising an edge element (3) for arrangement above the ground and a ground anchoring block (4) for arrangement below the ground, wherein said stabilization assembly (1) further comprises a connection element (5) attached to said ground-anchoring block (4), and wherein said connection element (5) is configured to extend upwardly from said ground-anchoring block (4) and to be attached to said edge element (3), to a load-bearing component of said building foundation (2) or to a building arranged on said building foundation (2).

2. The stabilization assembly (1) according to claim 1, wherein said ground-anchoring block (4) comprises concrete.

3. The stabilization assembly (1) according to claim 1 or claim 2, wherein said groundanchoring block (4) has a surface area of from 900 to 4900 cm2, preferably from 1600 to 3600 cm2.

4. The stabilization assembly (1) according to any one of the preceding claims, wherein said connection element (5) has a height, hi, of at least 20 cm, preferably from 35 to 70 cm.

5. The stabilization assembly (1) according to any one of the preceding claims, wherein said connection element (5) comprises stainless steel.

6. The stabilization assembly (1) according to any one of the preceding claims, wherein said edge element (3) comprises a first panel (6) comprising an insulation material, preferably cellular plastics, and a reinforcement bar (7) arranged on top of said first panel (6).

7. The stabilization assembly (1) according to claim 6, wherein said reinforcement bar (7) comprises wood.

8. The stabilization assembly (1) according to claim 6 or claim 7, wherein said edge element (3) further comprises a second panel (8) comprising an insulation material, preferably cellular plastics, wherein said second panel (8) is arranged between said reinforcement bar (7) and said first panel (6).

9. The stabilization assembly (1) according to claim 8, further comprising a U-profile element (19), wherein said U-profile element (19) is arranged to enclose at least a portion of said second panel (8).

10. The stabilization assembly (1) according to any one of claims 6-9, wherein said edge element (3) further comprises a side panel (9) having a first surface (9a) and an opposing second surface (9b); said first panel (6), said reinforcement bar (7), and, optionally, said second panel (8) being arranged against said first surface (9a) and extend in a direction perpendicular to said first surface (9a) of said side panel (9).

11. The stabilization assembly according to claim 10, wherein the height of said side panel(9) corresponds to the combined thickness of said first panel (6), said reinforcement bar (7), and optionally, said second panel (8).

12. The stabilization assembly (1) according to any one of the preceding claims, wherein said edge element (3) is void of concrete.

13. A building foundation (2) comprising a plurality of stabilization assemblies (1) according to any one of claims 1-12.

14. The building foundation (2) according to claim 13, wherein said plurality of stabilization assemblies (1) are arranged to define a foundation area (10), wherein said foundation area(10) comprises at least a first foundation layer comprising a plurality of first foundation blocks (11) arranged next to each other, wherein said first foundation blocks (11) comprise an insulation material.

15. The building foundation (2) according to claim 14, wherein each of said first foundation blocks (11) comprises a first layer (I la) comprising said insulation material and a second layer (1 lb) arranged on top of said first layer (I la), wherein said second layer comprises sheet metal, wood, plastics, or fiber glass.

16. The building foundation (2) according to claim 14 or claim 15, wherein said foundation area comprises at least a second foundation layer comprising a plurality of second foundation blocks (12) arranged next to each other, wherein said second foundation layer is arrangedbelow said first foundation layer, and wherein said second foundation blocks (12) comprise an insulation material.

17. The building foundation according to claim 16 when dependent on claim 6, wherein the thickness of said first foundation blocks (11) corresponds to the thickness, ti, of said reinforcement bar (7) of said edge element (3), and wherein the thickness of said second foundation blocks (12) corresponds to the thickness, t2, of said first panel (6) of said edge element (3).

18. The building foundation (2) according to any one of claims 14-17, further comprising a plurality of Z-profile elements (20) arranged to extend across said foundation area from a first edge of said foundation area to an opposing, second edge.

19. The building foundation (2) according to any one of claims 14-18, wherein said first foundation layer, and said second and third foundation layers, if present, are void of concrete.

20. A building comprising the building foundation according to any one of claims 13-19.

21. A method for forming a building foundation (2) comprising: a) excavating an area of the ground where the building foundation (2) is to be arranged; b) arranging a plurality of ground anchoring blocks in said excavated area, wherein connection elements (5) are attached to said ground-anchoring blocks (4); c) filling said excavated area with at least one filling material; d) connecting an edge element (3) to each of said connection elements (5); said connection element (5) being attached to said edge element (3), to a load-bearing component of said building foundation (2) or to a building arranged on said building foundation (2), wherein said edge elements (3) are arranged to define a foundation area (10); e) providing at least a first foundation layer comprising a plurality of first foundation blocks (11) in said foundation area (10), wherein said first foundation blocks (11) comprise an insulating material.

22. The method according to claim 21, further comprising a step d’) of providing at least one second foundation layer comprising a plurality of second foundation blocks (12) below saidfirst foundation layer, wherein said second foundation blocks (12) comprise an insulating material.

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