Method for compacting a subsoil

Abstract

The present application relates to methods for compacting a subsoil. In order to develop an alternative method for compaction which eliminates the disadvantages of the prior art and which is at the same time characterized by a particularly simple implementation, the following method steps are proposed according to the invention: a. Erecting at least two building elements (2) on the building site (1), each building element (2) comprising at least one building block (3) cast from concrete. b. Connecting the components (2) to one another by means of at least one connecting element (4) to form a composite (5). c. Loading the subsoil (1) with the construction elements (2) for a specified period of time. d. Removal of the building elements (2) from the building ground (1), whereby the removal of the building elements (2) is carried out without leaving any residue and without destruction.

Description

Introduction

[0001] The present invention relates to a method for compacting a subsoil.

[0002] Typically, soil compaction is necessary before any development can begin. This is intended to increase the load-bearing capacity of the subsoil to absorb structural loads and, at the same time, reduce settlement of the subsoil resulting from development. The subsoil can be on land or located in a body of water or the sea. Soil compaction may be necessary, particularly during (new) land reclamation in seas and waterways, which occurs through the addition of sand or waste. Swampy landscapes also require compaction before development to prevent the structures erected on the subsoil from sinking.

[0003] Typically, subsoil compaction is achieved by placing a fill on top of the subsoil to be compacted. This typically involves placing a bulk material, such as sand, in large quantities onto the subsoil to be compacted. The total mass of the bulk material roughly corresponds to the mass of the structure to be erected on the subsoil. To improve compaction, vertical drains can also be drilled into the subsoil. The process described above is also known as "preloading."

[0004] A disadvantage of the method described above, however, is that the bulk material must be laboriously removed from the subsoil after compaction. Furthermore, compaction of the subsoil is not uniform, as the piled-up "heap" creates a comparatively low load on the subsoil, particularly in the peripheral areas, so that the peripheral areas are compacted less than a central area of the subsoil. Due to the loose nature of the fill, the method cannot be used for compaction with arbitrarily high weights.

[0005] Another method for compacting subsoil is known as dynamic soil compaction. In this process, a drop plate, lifted by a crane, is dropped from a height onto the subsoil to be compacted. Typically, drop plates made of steel or concrete, weighing between six and 20 tons, are dropped onto the subsoil from a height of up to 20 meters above the subsoil. This is intended to allow the subsoil to be compacted more quickly. This process is repeated at various locations on the subsoil.

[0006] A disadvantage of the previously described method has been found to be that compaction only occurs in specific areas. Furthermore, the process is extremely complex. Furthermore, it has been found that this type of compaction is not suitable for all subsoils. For example, the method is not suitable for particularly clayey or highly organic soil compositions.

[0007] Various other state-of-the-art methods are also known for compacting subsoil. These include soil mixing (also known as deep cement mixing, DCM), milling mixing, vibratory pressure distribution, and vibro-compaction. However, all of the aforementioned methods involve interfering with the subsoil. For example, soil mixing uses mixing tools to break up the subsoil and then mix it with water and a binding agent, typically cement, to form a suspension.

[0008] The object of the present invention is to develop an alternative method for compaction in which the aforementioned disadvantages of the prior art are eliminated and which is at the same time characterized by a particularly simple implementation.

[0009] Starting from the method mentioned at the outset, the above object is achieved by the method according to the invention with the features according to claim 1. Advantageous embodiments are the subject of the associated subclaims.

[0010] The method according to the invention provides at least four process steps:

[0011] In a first step, at least two building elements are placed on the ground. Each of the building elements comprises at least one cast concrete block. The block can preferably be made of solid material.

[0012] In a second process step, the components are connected to one another using at least one connecting element. This creates a composite.

[0013] In a third step, the subsoil is loaded with the construction elements for a specified period of time. This results in compaction of the subsoil due to the weight of the construction elements acting on the subsoil.

[0014] In a final step, the components are removed from the subsoil. This removal is carried out without leaving any residue and without causing any damage. In other words, the components are removed from the subsoil in such a way that no residue remains. Removal also occurs without damaging the components. The components can therefore be reused.

[0015] It may be provided that the connecting element is removed from the building elements before they are removed in order to simplify their dismantling. However, it is also conceivable that the building elements are not separated from one another in order to accelerate or simplify the dismantling process. Particularly in the case where a large number of building elements are erected on the site, it may be provided that at least some of the building elements remain connected to one another during dismantling by means of one or more connecting elements.

[0016] The method according to the invention has many advantages. In particular, the method, especially with regard to the preloading process, enables particularly simple dismantling of the building elements, since the building elements can be easily removed from the subsoil, for example, using a crane. The removal of large quantities of bulk material is therefore not necessary. Furthermore, the method according to the invention can achieve a uniform load on the subsoil.

[0017] Another advantage is that the building elements can be reused after one subsoil has been compacted. For example, the building elements can be used to compact another subsoil.

[0018] A preferred embodiment of the invention provides for the building elements to be placed next to one another and / or one on top of the other on the building site, preferably without gaps. In other words, the building elements of one level and / or different levels are packed as tightly as possible. Preferably, the side surfaces and / or top and bottom surfaces of the building elements are tightly adjacent to one another, so that no gaps exist between the building elements.

[0019] According to a preferred embodiment of the invention, the weight of a building element is in the range between 1 t and 10 t. The building elements can thus be used to assemble the desired total weight in a modular manner by placing the appropriate number of building elements on the building site.

[0020] According to an advantageous embodiment of the invention, the total weight of the composite corresponds to at least the weight of a structure to be erected later on the subsoil, preferably exceeding it, so that a load acting on the subsoil through the structure is generated by the composite. In this way, the effects of the structure on the subsoil can be "simulated" before any development on the subsoil, so that settlement of the subsoil can be deliberately induced. Furthermore, the adjustment of the total weight of the composite ensures that no further settlement of the subsoil occurs subsequently.

[0021] A preferred embodiment provides for the composite of building elements to be installed on the subsoil for a period ranging from six months to two years. Tests have shown that the aforementioned period is suitable and necessary to achieve satisfactory soil compaction.

[0022] An advantageous embodiment of the invention provides that the composite of structural elements has a height in the range between 1 m and 50 m, preferably between 10 m and 30 m. In combination with the aforementioned weight, such a height has proven particularly useful for simulating the weight of a building.

[0023] According to a preferred embodiment of the invention, the building element comprises at least two building blocks connected to one another to form a partial assembly. In other words, one building element can comprise a plurality of building blocks connected to one another to form a partial assembly. The partial assembly is preferably formed before the building elements are erected on the sub-base. If two building elements are used, which in turn comprise at least two building blocks, it can thus be provided that the partial assemblies each formed from two building blocks are connected to one another to form the assembly. The assembly of the partial assemblies is preferably only formed after the building elements have been erected on the sub-base. It can of course also be provided that only one of the building elements comprises a plurality of building blocks.It is equally conceivable that more than two building blocks, for example six building blocks, are connected to each other and form a building element.

[0024] According to a further preferred embodiment of the invention, the building blocks of the construction elements comprise a cured mixture, the mixture comprising at least one additive, at least one liquid, and at least one binder. Such a composition has proven particularly advantageous for ensuring simple and rapid production of the building blocks. Furthermore, the composition makes it possible to provide the required weight.

[0025] An advantageous embodiment of the invention provides for the aggregate to be gravel or sand, especially desert sand. The use of desert sand, in particular, offers the advantage that it occurs naturally in virtually inexhaustible quantities. The use of desert sand is also particularly advantageous with regard to nature conservation. The building blocks can thus preferably be manufactured in regions rich in desert sand, such as Algeria, Morocco, Saudi Arabia, or Oman. The finished building blocks and / or the finished building elements can then be easily transported by ship to the desired location.

[0026] A particularly advantageous further development of the method according to the invention provides for the liquid to be freshwater or saltwater. The use of saltwater, in particular, enables particularly resource-efficient production of the building blocks of the components.

[0027] The binding agent can preferably be cement or lime mortar. These two aforementioned binding agents enable particularly cost-effective production of the building blocks of the components. The use of liquid reactive resins, for example, thermosets such as epoxy resin (EP), unsaturated polyester resin (UP), and polyurethanes (PUR), as well as thermoplastics such as polymethyl methacrylate (PMMA), would also be conceivable. Curing of the aforementioned binding agents preferably occurs after the addition of reactants (hardeners, initiators) by polyaddition or polymerization.

[0028] A further embodiment of the invention provides for the building blocks of the components to have a triangular, rectangular, pentagonal, octagonal, or hexagonal cross-section. The aforementioned cross-sections have the advantage that the building blocks can be arranged side by side in a plane without gaps. For this purpose, the building blocks can be arranged with their side surfaces adjacent to each other in a plane.

[0029] The use of a hexagonal cross-section has proven particularly advantageous. When the building blocks are arranged side by side, the adjacent side surfaces prevent the blocks from shifting against each other. This allows the building blocks to be placed particularly stably on the foundation. The same applies to the use of building blocks with a pentagonal cross-section.

[0030] The above-mentioned advantages apply equally to the components that contain the building blocks.

[0031] Furthermore, it is particularly advantageous if the building block has a preferably centrally arranged opening for the passage of at least one conveying means. The conveying means can preferably be designed in the form of a rod, preferably made of steel. If two building blocks are arranged congruently on top of one another with their respective openings, the conveying means can be passed through the two openings in order to connect the building blocks and thus several components to one another in the vertical direction. In this case, it can be provided that the conveying means is screwed to a building block at least on one side. Alternative fastenings for the conveying means are also conceivable.

[0032] In addition to ensuring a safe and stable connection of the building blocks of the construction elements, the means of transport also provide a possibility for attaching means for lifting and transporting the building blocks.

[0033] An advantageous embodiment of the invention provides that a height exceeds a side length of the building block of the components, preferably 1.5 times, and further preferably 2 times the side length. For example, it can be provided that the building blocks—if they are hexagonal in cross-section—have a side or edge length of one meter, while the building block has a height of 1.5 meters. Likewise, the side length can exceed the height of the building block, preferably in the same ratio as mentioned above.

[0034] According to a further preferred embodiment of the invention, the connecting element is H- or U-shaped.

[0035] For the purposes of the present invention, H-shaped means a shape which has four legs which extend essentially perpendicularly from a web and which preferably run parallel. If the connecting element is H-shaped, the legs arranged on one side of the web can be used to connect two building blocks of one component or two different components in one plane, while the other two legs can be used to connect two building blocks of another component or two other components in a higher position. The connection of the legs via the web enables the building blocks of the components of the two levels to be connected to one another, i.e. in the vertical direction, while two legs each enable a connection in the horizontal direction.

[0036] For the purposes of the present invention, a U-shaped structure is understood to mean a shape that has a web and two legs extending therefrom, preferably at a right angle, with the legs preferably aligned parallel to each other. Connecting elements of the aforementioned type enable the connection of two building blocks in a horizontal direction. Preferably, the U-shaped connecting elements can be used for an uppermost layer, while the H-shaped connecting elements are used to connect building blocks in the underlying layers.

[0037] A further embodiment of the invention provides that the building blocks of the components have at least one reinforcement device cast into the building block. The reinforcement device can be cast into each building block. The reinforcement device can preferably be made of steel. It can be particularly preferred that each building block has two reinforcement devices, wherein the reinforcement devices are each arranged at a distance from a top or bottom side of each building block.

[0038] The reinforcement prevents the concrete block from breaking. The reinforcement is preferably completely cast into the block, leaving it invisible from the outside.

[0039] The reinforcement device can comprise at least two reinforcement elements, wherein a first reinforcement element is preferably annular and a second reinforcement element extends from the first reinforcement element, preferably in a straight line, toward an edge region of the building block. Furthermore, it is preferably provided with a ring element arranged at an end facing away from the first reinforcement element, wherein cross sections of the first reinforcement element and the ring element preferably lie in one plane. The reinforcement device is thus preferably formed from two ring elements connected to one another by means of a straight reinforcement element.

[0040] The first reinforcement element can serve to accommodate an end section of the means of transport. A diameter of the first reinforcement element is adapted to a geometry, in particular a diameter, of the means of transport. The ring element of the second reinforcement element can serve to accommodate an end section of a horizontal connecting element. If the horizontal connecting elements are H- or U-shaped, the ring elements can serve to accommodate a leg of the connecting elements.

[0041] The reinforcement device is therefore particularly advantageous in terms of the stability of the building block and thus also of the structural element. On the other hand, the reinforcement device also enables a particularly strong and secure connection between the building blocks and structural elements. The ring elements of the reinforcement elements allow the absorption of transverse forces, which can lead to a displacement of the building blocks or structural elements against each other, for example, in strong winds.

[0042] However, it can also be provided that each building block has a plurality of reinforcing elements extending from the first reinforcing element. For example, if the building block has a hexagonal cross-section, it can be provided that it has six reinforcing elements extending from a centrally arranged first reinforcing element, wherein these are each arranged at an angle of 60° to one another. A center point of the first annular reinforcing element preferably corresponds to a center point of the building block. The ring elements arranged at the ends of the reinforcing elements extending from the first reinforcing element can be aligned such that each ring element is assigned to a side surface of the building block.The ring elements can preferably be arranged at a distance from each side surface at the level of one half of the respective side surface.

[0043] On the other hand, the reinforcement device can have at least two reinforcement elements, wherein a first reinforcement element is preferably semicircular and a second reinforcement element extends from the first reinforcement element preferably in a straight line toward an edge region of the building block and further preferably has a ring element arranged at an end facing away from the first reinforcement element, wherein cross sections of the first reinforcement element and the ring element preferably lie in one plane. In this case, too, it can be provided that each building block has two reinforcement devices, each arranged at a distance from a top side or a bottom side of the building block.In the event that the building block has a hexagonal cross-section, it can be particularly advantageous if the building block is provided with three, more preferably six, reinforcing devices of the type described above, preferably at a distance from the top and bottom, so that each side surface of the building block is assigned a ring element.

[0044] Furthermore, it can be particularly advantageous if the reinforcement device has a further reinforcement element which, like the second reinforcement element, extends in a straight line from the first reinforcement element towards the edge region and is provided with a ring element at the end. The two reinforcement elements, which are at least partially rectilinear, can be arranged on a common straight line and connected to the semicircle of the first reinforcement element by an end not provided with the ring element. Preferably, it can also be provided that each module has four reinforcement devices, with two of the reinforcement devices being arranged directly below one another. The reinforcement devices are preferably designed according to the type described above.In the event that the building block has a hexagonal cross-section, it can be particularly advantageous if the building block has three, more preferably six, of the above-described reinforcing devices, preferably at a distance from the top and bottom, so that each side surface of the building block is assigned a ring element.

[0045] A further preferred embodiment of the invention provides that the building blocks have at least one opening for the at least partial insertion of an end section of a horizontal connecting element connecting the building blocks horizontally, wherein the opening is preferably designed in the form of a blind opening. If the horizontal connecting element is H- or U-shaped, a respective leg can be inserted into one opening, while a second leg can be inserted into the opening of the second building block of a common building element or of another building element. In this way, the building blocks or building elements can be easily and securely connected to one another in one plane.

[0046] It can be provided that a center point of the opening corresponds to a center point of a ring element of the second reinforcing element of the reinforcing device, so that the opening is reinforced by the reinforcing element. Examples of implementation

[0047] The method according to the invention is explained in more detail below using an exemplary embodiment illustrated in the figures. It shows: Fig. 1: A vertical section through a subsoil to be compacted. Fig. 2: A vertical section through a composite of several building elements on the subsoil. Fig. 3: The building site Fig. 1 after compaction carried out by means of the composite. Fig. 4: A top view of a building block of a component from Fig. 2. Fig. 5: A horizontal section through the block from Fig. 4. Fig. 6: A vertical section through the building block from Fig. 4. Fig. 7: A first horizontal connecting element. Fig. 8: A second horizontal connecting element. Fig. 9: A top view of the reinforcement devices of the building blocks of the components from Fig. 2 in a connected state. Fig. 10: A top view of the composite of Fig. 2.

[0048] A method according to the invention for compacting a subsoil 1 is described in the Fig. 1 to 3. The subsoil 1 before compaction is shown in the Fig. 1 shown.

[0049] In a first step of the method according to the invention - as in Fig. 2 - a composite 5 consisting of a plurality of building elements 2 is erected on the building site 1. The building elements 2 are each formed from a building block 3, which in connection with the Fig. 4 to 6. In the exemplary embodiment of the assembly 5 shown in the figures, each component 2 is formed from a single module 3. However, it would also be conceivable for at least one of the components 2 to comprise a plurality of modules 3, which in turn are connected to one another to form a partial assembly.

[0050] The building blocks 3 are then connected in a second process step by means of connecting elements 4 and then form the composite 5. The connecting elements 4 are connected to the Fig. 7 and Fig. 8 described in detail.

[0051] In a third step, the subsoil 1 is loaded with the construction elements 2. The loading takes place for a specified period of time. This can preferably be between six months and two years. As can be seen from a comparison between the Fig. 1 and Fig. 3 and is recognizable, the subsoil 1 subsides or settles due to the force acting on the subsoil 1. In other words, the composite 5 "sags" deeper into the subsoil 1 when subjected to the load and, in turn, compacts the latter.

[0052] In a final step, the building elements 2 are removed from the subsoil 1. To do this, the connecting elements 4 are first removed so that the building elements 2 can be separated from each other. The removal of the building elements 2 takes place without leaving any residue. Furthermore, the building elements 2 are not destroyed and can subsequently be reused—in particular, for compacting another subsoil 1. The compacted subsoil 1 can then be used for construction. Subsequent settlement of the subsoil 1 is advantageously eliminated or at least significantly reduced as a result of the above-described process.

[0053] Each of the building blocks 3 of the building elements 2 has - as shown in the Fig. 4 and Fig. 5 can be seen - a hexagonal cross-section. Furthermore, each building block 3 has an opening 6 with a first diameter 28, wherein the opening 6 is arranged centrally. The opening 6 extends from an upper side 20 to a lower side 21 through the building block 3. Furthermore, each building block 3 has openings 16 with a second diameter 29, which are each designed in the form of a blind opening 18 or a blind bore. Six blind openings 18 are assigned to the upper side 20 and the lower side 21 of the building block 3. The blind openings 18 are arranged at an angle of 60° to one another.

[0054] Each of the openings 6 passing through the building blocks 3 serves to carry out a conveying means 10 connecting the building blocks 3 in the vertical direction, which in the Fig. 2. The conveying means 10 enables, in particular, the easy placement of several building elements 2, for example, by means of a crane. Appropriate means for lifting the building elements 3 can be attached to the conveying means 10.

[0055] The blind openings 18 serve to connect the building blocks 3 to each other by receiving end sections 17 of horizontal connecting elements 4, 9, which in connection with the Fig. 7 and Fig. 8 will be described in more detail.

[0056] Furthermore, the building blocks 3, as can be seen in particular from Fig. 5, each is provided with two reinforcement devices 11 cast into the respective building block 3. The reinforcement devices 11 of the building blocks 3 each comprise seven reinforcement elements 12, 13: A first reinforcement element 12 of the reinforcement device 11 is annular and arranged centrally. A center point of the first reinforcement element 12 lies on a center point of the opening 6 of the building block 3. The other six reinforcement elements 13 extend from the first reinforcement element 12 in the direction of an edge region 14 of the building block 3 and are each designed to be rectilinear, with a ring element 15 being arranged in an end section 17 of each reinforcement element 13. The six reinforcement elements 13 extend from the first reinforcement element 12 in the radial direction, with the ring elements 15 facing away from the first reinforcement element 12.The six reinforcement elements 13 are arranged at an angle of 60° to each other. The reinforcement devices 11 are each arranged at a distance 24 from a top side 20 and a bottom side 21 of the respective module 3, as shown in FIG. Fig. 6 is recognizable.

[0057] The building blocks 3, along with the reinforcement elements 11, are made entirely of concrete. The building blocks 3 are formed from a hardened mixture comprising an aggregate, a liquid, and a binder. The aggregate is desert sand, the liquid is seawater, and the binder is cement.

[0058] The building blocks 3 each have a height 7 of 1.5 m. One side length 8 of each side of the building block 3 is 1 m. The building blocks 3 have a weight of approximately 8 t. The Fig. The composite 5 shown in Figure 2 thus has a height of 4.5 m and a total weight of 144 t. This total weight essentially corresponds to the weight of a structure to be erected later on site 1, for example, a house.

[0059] In order to connect the components 2 in one plane, horizontal connecting elements 4, 9 are provided, whereby the assembly shown in the figures is provided by means of two types of connecting elements 4, 9: a first connecting element 4, 9 of type C is shown in the Fig. 7. The connecting element 4, 9 of type C is formed from steel and, viewed in cross-section, has a clamp-like design. It has a web 25 and two straight legs 26 extending therefrom at an angle of 90° each. The connecting element 4, 9 of type D, which is shown in the Fig. 8, is also made of steel, but is H-shaped. The connecting element 4, 9 of type D thus has a web 25 and four legs 26 extending therefrom.

[0060] In order to connect individual components 2 to one another in one plane, a connecting element 4, 9 of type C or a connecting element 4, 9 of type D can be used. For this purpose, the connecting element 4, 9 can be inserted with its legs 26 into the blind openings 18 of the building blocks 3. If the connecting element 4, 9 of type C is used, one leg 26 is inserted into a blind opening 18 of a building block 3 of a component 2, while the other leg 26 is inserted into a blind opening 18 of the building block 3 of the other component 2. When the connecting element 4, 9 of type D is used, the connection is made in an identical manner. However, when the two components 2 are connected, the two opposite legs 26 of the connecting element 4, 9 of type D protrude above the respective upper side 20 of the building blocks 3 of the components 2. The connection of several components 2 by means of a connecting element 4, 9 is shown in the Fig. 9 and Fig. 10. For better visibility, the Fig. 9 only one amplification device 11 of a module 3 of the components 2 is shown.

[0061] Components 2 arranged in a plane, as shown in the Fig. 10, can be arranged next to one another essentially without gaps due to the hexagonal cross-section of the building blocks 3. The arrangement of the building elements 2 or the building blocks 3 thus corresponds to a honeycomb pattern. The building blocks 3 can also be arranged one on top of the other without gaps in the vertical direction.

[0062] If the components 2 have been connected to one another by means of a connecting element 4, 9 of type D in a first layer 27a, which forms a base layer 30, a second layer 27b of components 2 can simply be placed on the base layer 30. In this case, legs 26 protruding from the respective surface of the building blocks 3 of the components 2 can be used. These legs can then be inserted from a bottom side 21 of the building blocks 3 of the building elements 2 into the respective blind openings 18, as shown in the Fig. 2 can be seen. The building blocks 3 of the components 2 can then be connected to one another in the plane by means of further connecting elements 4, 9. When stacking three layers 27a, 27b, 27c, as in Fig.As shown in Figure 2, it can be provided that the third layer 27c is connected to the second layer 27b by means of connecting elements 4, 9 of type D. In order to connect the components 2 or the building blocks 3 of the third layer 27c to one another in the corresponding plane, connecting elements 4, 9 of type C can be used, so that the surface of the third layer 27c is flat.

[0063] In order to be able to firmly connect and transport the building elements 2 in the vertical direction, a conveying means 10 is guided through the openings 6 of the building blocks 3 of the building elements 2, which lie congruently on top of one another. The conveying means 10 is in the form of a rod made of steel. Each conveying means 10 is fixed to the underside 21 of the building block 3 of the building element 2 of the first layer 27a or to the top side 20 of the building block 3 of the building element 2 of the third layer 27c. In addition to the legs 26, the conveying means 10 prevent displacement of the building elements 2 or the building blocks 3 of a layer 27a, 27b, 27c, relative to the building elements 2 or building blocks 3 of a layer 27b, 27c arranged above them. The rods also enable transport or easy erection of the building blocks 3 on the building site 1, for example by means of a crane. List of reference symbols 1 building site 2 Component 3 building blocks 4 Connecting element 5 Network 6 Breakthrough 7 Height 8 page length 9 horizontal connecting element 10 means of transport 11 Amplification device 12 first reinforcement element 13 additional reinforcement elements 14 Marginal area 15 ring element 16 Breakthrough 17 final section 18 Sack breakthrough 19 Diameter of the breakthrough 20 Top 21 subpage 22 Diameter of the bag opening 23 End section of the reinforcing element 24 distance 25 bridge 26 legs 27a first layer 27b second layer 27c third layer 28 diameter of the opening 29 Diameter of the bag opening 30 Base position C horizontal connecting element D horizontal connecting element

Claims

[1] Method for compacting a subsoil (1), comprising the following method steps: a. Erecting at least two building elements (2) on the building site (1), each building element (2) comprising at least one building block (3) cast from concrete. b. Connecting the components (2) to one another by means of at least one connecting element (4, 9) to form a composite (5). c. Loading the subsoil (1) with the construction elements (2) for a specified period of time. d. Removal of the building elements (2) from the building ground (1), whereby the removal of the building elements (2) is carried out without leaving any residue and without destruction. [2] Method according to claim 1, characterized by that the building elements (2) are placed next to each other and / or on top of each other on the building site (1), preferably without gaps. [3] Method according to one of the preceding claims, characterized bythat a weight of a component (2) is in the range between 1 t and 10 t. [4] Method according to one of the preceding claims, characterized by that a total weight of the composite (5) corresponds to a weight of a structure to be erected later on the subsoil (1), preferably exceeds this, so that a load acting on the subsoil (1) by the structure is generated by means of the composite (5). [5] Method according to one of the preceding claims, characterized by that the assembly (5) of the building elements (2) is installed on the building site (1) for a period of time ranging from six months to two years. [6] Method according to one of the preceding claims, characterized by that the composite (5) of the structural elements (2) has a height (7) in the range between 1 m and 50 m, preferably between 10 m and 30 m. [7] Method according to one of the preceding claims, characterized bythat the component (2) has at least two building blocks (3) connected to one another to form a partial assembly. [8] Method according to claim 7, characterized by that the building block (3) has a cured mixture, the mixture comprising - at least one additive, - at least one liquid and - at least one binding agent. [9] Method according to claim 8, characterized by that the aggregate is gravel or sand, especially desert sand. [10] Method according to claim 8 or 9, characterized by that the liquid is fresh water or salt water. [11] Method according to one of claims 8 to 10, characterized by that the binding agent is cement or lime mortar. [12] Method according to one of claims 7 to 11, characterized bythat the building block (3) has a triangular, rectangular, pentagonal, octagonal or hexagonal cross-section. [13] Method according to one of claims 7 to 12, characterized by that the building block (3) has a preferably centrally arranged opening (6) for the passage of at least one conveying means (10). [14] Method according to one of claims 7 to 13, characterized by that a height (7) exceeds a side length (8) of the building block (3), preferably 1.5 times, further preferably 2 times the side length (8) or vice versa. [15] Method according to one of the preceding claims, characterized by that the connecting element (4, 9) is H- or U-shaped. [16] Method according to one of claims 7 to 15, characterized by that the building block (3) has at least one reinforcing device (11) cast into the building block (3), wherein the reinforcing device (11) is preferably either - at least two reinforcing elements (12, 13), wherein a first reinforcing element (12) is preferably annular and a second reinforcing element (13) extends from the first reinforcing element (12) preferably in a straight line in the direction of an edge region (14) of the building block (3) and further preferably has a ring element (15) arranged at an end facing away from the first reinforcing element (12), wherein cross sections of the first reinforcing element (12) and of the ring element (15) preferably lie in one plane or - has at least two reinforcing elements (12), wherein a first reinforcing element (12) is preferably semicircular and a second reinforcing element extends from the first reinforcing element (12) preferably in a straight line in the direction of an edge region (14) of the building block (3) and further preferably has a ring element (15) arranged at an end facing away from the first reinforcing element (12), wherein cross sections of the first reinforcing element (12) and of the ring element (15) preferably lie in one plane. [17] Method according to one of claims 7 to 16, characterized by that the building blocks (3) have at least one opening (16) for the at least partial insertion of an end section (23) of a horizontal connecting element (4, 9) connecting the building blocks (3) in the horizontal direction, wherein the opening (16) is preferably designed in the form of a blind opening (18).

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