The earth cellar comprises at least one large pipe body.

Abstract

Large pipe body (1) for laying in the ground, wherein the large pipe body (1) consists of a large pipe with an interior (9), wherein the large pipe body (1) has at least one outer wall (2) surrounding the interior (9) of the large pipe body (1), wherein the outer wall (2) has at least two layers (4, 6), one layer (4) being a solid body (3) in cross-section and the other layer (6) consisting of at least one outer tube (5, 12) wound along the outer wall (2), wherein the two layers (4, 6) are bonded together. According to the invention, several projections (7) are formed on the inside of the outer wall (2) distributed around the circumference and / or in the axial direction, which are raised towards the interior of the large pipe (1) relative to the inner surface (8) of the outer wall (2).

Description

[0001] The invention relates to a large-diameter pipe body for installation underground, wherein the large-diameter pipe body consists of a large pipe with an interior space and wherein the large-diameter pipe body has at least one casing wall that surrounds the interior space of the large-diameter pipe body. The casing wall has at least two layers, one of which is a solid body in cross-section, and the other layer consists of at least one casing pipe wound along the casing wall. These two layers are integrally bonded.

[0002] The publications DE 25 04 883 A1 and GB 905 766 A, as well as EP 1 231 423 A1 and EP 1 794 485 B1, each disclose a double-walled pipe with a gap in the double wall, wherein a spirally wound pipe is provided in the gap as a stiffening spacer element. Such pipes are intended in particular for installation in the ground.

[0003] Against this background, the object of the invention is to provide an improved large-diameter pipe body.

[0004] For this purpose, according to the invention, a large pipe body for installation in the ground according to the features of claim 1 is provided.

[0005] The large-diameter pipe body according to the invention consists of a large-diameter pipe with an interior space, wherein the large-diameter pipe body has at least one jacket wall that surrounds the interior of the large-diameter pipe body. The jacket wall has at least two layers, of which one layer is a solid body in cross-section and the other layer consists of at least one jacket tube wound along the jacket wall. The two layers are integrally connected. On the inside of the jacket wall, a plurality of projections are formed, distributed over the circumference and / or in the axial direction, which projections are raised relative to the inner surface of the jacket wall towards the interior of the large-diameter pipe.

[0006] Preferably, these projections are intended and designed to serve as a receptacle for fittings in the interior.

[0007] The term "hollow body" preferably refers to a structural component extending along a longitudinal axis and enclosing an interior space. The hollow body preferably has a longitudinal extension in the direction of the longitudinal axis that is greater than the diameter measured radially to the longitudinal axis. Such a structural component is also referred to as a tube, although the shape is not limited to a cylindrical geometry. The radial cross-sectional dimensions can also be asymmetrical around the circumference. The cross-sectional shape can also have one or more corners, in particular, be polygonal.

[0008] The object described here comprises two hollow bodies. Thus, the large-diameter pipe body, with its interior space, is a hollow body. However, the at least one jacket pipe provided in the wall structure of the casing wall of the large-diameter pipe body is also a hollow body.

[0009] A "large-diameter pipe" or "large-diameter pipe body" is a hollow body in which the smallest cross-section is greater than 70 cm and / or the largest cross-section is greater than 180 cm. In particular, the smallest cross-section is greater than 100 cm and / or the largest cross-section is greater than 200 cm. For a large-diameter pipe, the smallest cross-section is preferably greater than 140 cm and / or the largest cross-section is greater than 220 cm. It should be noted that these dimensions refer to the empty interior of the large-diameter pipe body within the shell wall and without any internals.

[0010] One aspect is that the smallest cross-section of the empty interior of the large-diameter pipe body and / or underground cellar is no larger than 300 cm. This achieves a reasonable compromise between usable volume and transport limitations.

[0011] When installed, the large pipe body and / or earth cellar can be aligned such that the smaller cross-section is oriented parallel to the vertical and thus the larger cross-section is oriented parallel to the horizontal. This creates a wide interior space. Preferably, the large pipe body and / or earth cellar is aligned such that the larger cross-section is oriented parallel to the vertical and thus the smaller cross-section is oriented parallel to the horizontal. This makes it possible to provide a narrow earth cellar with little space requirement. Particularly preferably, the larger cross-section and the smaller cross-section differ from one another by a maximum of one quarter of the size of the smaller cross-section. This makes it possible to provide an almost circular cross-section, which enables particularly effective use of the interior space.

[0012] According to a further development, it is provided in particular that the layer with the body having a solid cross-section borders the interior space, and the layer with the at least one jacket pipe is arranged further outward with respect to the interior space. This ensures that a solid and, in particular, closed structure is formed towards the interior space. The outer layer with the at least one jacket pipe then serves solely to construct and maintain the shape and spatial structure of the large-diameter pipe body. In particular, it is provided that the at least one jacket pipe rests against the solid body and / or is integrally connected to it.

[0013] This means that the inside of the solid body is facing the interior and the outside of the solid body is facing at least one jacket pipe.

[0014] Alternatively, the solid body can also be arranged in a further outer layer of the casing wall. In this case, at least one layer with at least one casing tube is arranged closest to the interior space. This design is particularly advantageous if at least one casing tube of the casing wall is fluidically connected to the interior space.

[0015] Preferably, pipes, in particular thin-walled pipes, are used for the jacket pipe, for example so-called flat duct pipes, corrugated pipes or hoses, in particular dimensionally stable hoses.

[0016] One aspect is that the casing wall has at least one outer layer which is applied externally to the other layer with the at least one casing pipe, in particular wherein the outer layer is a body with a solid cross-section and / or is materially connected to the other layer. This can increase the stability of the casing wall, which is an advantage in particular during transport of the large pipe body. The at least one casing pipe is also protected by the outer layer. In particular, the one layer with a solid body is the inner layer of the casing wall and is spaced from the outer layer, wherein the at least one casing pipe is positioned at this space, preferably wherein the space is determined by the outer diameter of the casing pipe. In the case of several layers of casing pipe between two solid bodies, the space between the solid bodies is determined by the structural height of the casing pipe layers.

[0017] A further development provides that the jacket wall has a peripheral layer with at least one further jacket tube. This peripheral layer is formed, relative to the longitudinal axis of the large-diameter pipe body, either radially outside the outer layer or radially inside the outer layer. In particular, the at least one further jacket tube is oriented in a spiral-shaped manner around the longitudinal axis, preferably wound in the opposite direction to the at least one jacket tube in the other layer. In particular, the at least one jacket tube of the peripheral layer is integrally connected to the adjacent layer or layers.

[0018] Alternatively, it is possible that in the peripheral layer and / or in the other layer the at least one jacket tube is oriented parallel to the longitudinal axis or that in the respective layer a plurality of jacket tubes are provided, each of which is arranged in a ring shape, preferably in a plane intersecting the longitudinal axis, in particular in a plane orthogonal to the longitudinal axis.

[0019] One aspect is that the projections are designed as fastening elements for installation elements in the large pipe body, or that installation elements are fastened to the projections. For this purpose, the projections preferably have contact surfaces and / or receiving recesses. In particular, contact surfaces have a flat area of ​​at least 90 square centimeters. Receiving recesses are provided in particular to receive connecting elements such as screws or bolts. Depending on the embodiment, receiving recesses can also be designed as sleeves or flanges for receiving part of an installation element. This enables simple assembly of the installation elements, in particular after the large pipe body has been positioned in the ground. Contact surfaces are preferably flat surface sections, for example tabs or blocks, against which an installation element can rest and / or to which an installation element is connected.Fasteners such as adhesive, screws, bolts, nails and rivets can be used for the connection.

[0020] According to a further aspect of the large pipe, at least one jacket pipe of the jacket wall, in particular in the region of at least one end face of the large pipe, is fluidically connected to the interior at at least one point. This ensures in particular that a fluid, preferably air, can flow from the jacket pipe into the interior and / or from the interior into the jacket pipe. This makes it possible to implement an air exchange in the interior and, in the process, to adapt air flowing in through the jacket pipe to the temperature of the ground and / or interior. This is particularly advantageous because the conduction path of the jacket pipe is arranged along the jacket wall and / or around the jacket wall. This allows the inflowing air to be gently adapted to the climatic conditions in the interior and / or in the ground.

[0021] According to one embodiment, the casing pipe is connected to the above-ground environment on the other side. This allows for a permanent exchange of air in the interior, thereby maintaining the concentration of oxygen and / or radon in the interior at a level typical for above-ground conditions.

[0022] In one embodiment of the large pipe with at least two separate jacket pipes, it is possible for the two jacket pipes not to be fluidically connected to each other, but both to be fluidically connected to the interior. This makes it possible to allow air to flow into the interior through one of the at least two jacket pipes and to discharge air from the interior through another of the at least two jacket pipes. These two jacket pipes are preferably arranged closely together along and / or around the jacket wall, enabling heat exchange between the outflowing and inflowing air.

[0023] One aspect is that at least the jacket tubes through which air flows have a wall material that has high thermal conductivity. When using at least two jacket tubes for incoming and outgoing air, a heat transfer medium is preferably provided between these tubes.

[0024] The invention also relates to an earth cellar with an access space. According to the invention, the earth cellar is made from a large-diameter pipe body, in particular according to the preceding description. The earth cellar has a front cover on at least one of the two end faces of the large-diameter pipe, in particular to close the earth cellar on one side. The earth cellar further comprises an access element that provides the access space. Preferably, the access element is arranged on one of the two end faces of the large-diameter pipe body. Alternatively, the access element can also be arranged laterally on the casing wall of the large-diameter pipe body. In particular, it is possible for the large-diameter pipe body and the access element to be two separate components that are only connected to one another at the installation site of the earth cellar. This facilitates the transport of the earth cellar. Furthermore, it is possible to offer a large number of earth cellar variants through prefabricated modules.

[0025] One aspect of the underground cellar is that the end cap is firmly bonded to the large-diameter pipe body, forming a non-destructive, inseparable unit with the large-diameter pipe body. This ensures a particularly tight seal. This connection is preferably created before the large-diameter pipe body is transported to the underground cellar installation site, but it is also possible to make it at the installation site.

[0026] One aspect of the underground cellar is that the front cover is designed to be fixed to the large-diameter pipe body with a form-fitting and / or force-fitting connection, allowing it to be separated non-destructively. This simplifies the installation of the front cover to the large-diameter pipe body, particularly for installation at the installation site of the underground cellar.

[0027] According to one aspect, the access element in the earth cellar is designed as a large pipe, in particular as a large pipe according to the preceding description. In an access element designed as a large pipe, the first end face is designed for releasable attachment to an end face of the large pipe body, and the second end face of the access element opposite the first end face or the casing wall of the access element has an access opening. In particular, the access element can have a door by means of which the access opening can be closed. Preferably, the access opening has a width of at least 70 centimeters and / or a height of at least 160 centimeters and / or an opening area of ​​at least one square meter. This makes it possible for a person to enter the earth cellar through the access opening.

[0028] The door can be vertically oriented, in particular have a vertical axis of rotation for opening and / or be mounted so that it can be moved vertically. When closed, the door is oriented essentially parallel to the vertical, which includes a deviation of up to 5 degrees from the vertical. This embodiment enables easy access and good visibility of the entrance. Alternatively, the door can also be horizontally oriented. In this case, the door is oriented essentially parallel to the horizontal when closed. In this case, a deviation of up to 20 degrees from the horizontal should still be considered essentially parallel to the horizontal. Such a embodiment has the advantage that the entrance can be concealed in the floor. It has proven particularly advantageous if the door can be planted and / or driven over.This makes it possible to create the cellar beneath flowerbeds, lawns, terraces, or courtyards, allowing for particularly efficient use of the property. Such a door has at least one adjustment axis, which is oriented at an angle of 0 degrees to 20 degrees to the horizontal. To open, the door can be rotated around the at least one adjustment axis and / or moved parallel to the adjustment axis.

[0029] Furthermore, it is possible for the access element to have a staircase, which can provide an exit into the interior of the large pipe body.

[0030] The access element provides an access space.

[0031] One aspect is that the longitudinal extension of the access space of the access element is inclined relative to the longitudinal extension of the interior of the large pipe body and / or relative to the horizontal.

[0032] Preferably, the access opening in the earth cellar is located higher than the upper edge of the interior of the large pipe body.

[0033] A preferred embodiment of the earth cellar and / or the large-diameter pipe body is for some of the built-in elements, at least in the interior of the large-diameter pipe body, to be made of wood. This provides a particularly favorable environment for food storage, especially since wood, due to its moisture absorption properties, reacts particularly well to fluctuating humidity levels in the interior.

[0034] A complementary or alternative design of the earth cellar and / or the large-diameter pipe body is to provide a walkway at least in the interior of the large-diameter pipe body. This primarily serves as an internal access route and, within the rounded cross-section of the large-diameter pipe body, provides a flat upper surface for safe passage of a person. The surface of the walkway is preferably located in the lower third, especially in the lower tenth, of the height of the interior space.

[0035] This provides a space for movement above the walking floor between the walking floor and the shell wall in which at least one person can walk.

[0036] One aspect is that a cavity is formed between the floor of the interior and the walkway floor. This cavity preferably serves as a technical room. This makes it possible to form a technical room below the walkway floor, between the walkway floor and the shell wall, in which installed elements in the form of cables and / or systems are housed. These installed elements are preferably selected from the group of ventilation ducts, electrical cables, ventilation systems, electrical systems, ventilation devices, electrical devices, in particular fan impellers, lighting, air conditioning technology, and sound systems.

[0037] One aspect is that the walkway can be opened, particularly in sections, toward the technical room. This is preferably possible without tools, with the walkway consisting of individual segments that can be removed from their seats in sections, particularly individually. This makes it easy to access the technical room for maintenance purposes, such as replacing air filters or accessing electrical fuses.

[0038] The segments can be predominantly flat bodies, preferably with an aspect ratio between 1:1 and 1:3. In particular, the width of the segments is greater than 30 centimeters and / or narrower than 120 centimeters. According to a preferred embodiment, the running floor is made of metal and / or wood.

[0039] With respect to the longitudinal direction of the interior, several segments of the running floor can be arranged side by side transversely to the longitudinal direction, and several segments of the running floor can be arranged one behind the other in the longitudinal direction. The running floor segments and / or the bearings and seating of the segments can also be referred to as built-in elements of the interior of the large-diameter pipe body.

[0040] A particularly preferred design of the earth cellar provides for the built-in elements to be made of wood and, in particular, to provide shelves, preferably for food, especially for wine. The earth cellar can therefore be used as a wine cellar.

[0041] Another preferred use of the cellar is as a sauna, workshop or hobby room.

[0042] One aspect is that the equipment in the technical room is connected to the basement in a vibration-isolated manner by the shell wall and / or the walkway floor, particularly the location of the walkway segments. This ensures that vibrations from the equipment are not transmitted to the stored goods in the basement.

[0043] According to one embodiment of the earth cellar, it has a ventilation system that supplies fresh air into the interior and / or exhausts air from the interior. This makes it possible to create a favorable indoor climate for storage in the interior of the earth cellar.

[0044] Preferably, at least one sensor is provided in the interior to determine the climate status within the interior. This at least one sensor is designed to detect the humidity and / or the air temperature and / or the carbon dioxide content in the air and / or vibrations and / or movements.

[0045] Preferably, the at least one sensor is connected to a control device. It is possible for the control device to output the sensor values ​​or the exceedance or undershoot of certain limit values ​​of the sensor values ​​as an indication signal to a user of the underground cellar. It is also possible for the control device to forward the sensor values ​​or the exceedance or undershoot of certain limit values ​​of the sensor values ​​as a control signal to a room air heating system and / or a ventilation system. The control device can also be provided by the control of a ventilation system.

[0046] According to one aspect, the ventilation system has a supply line for the fresh air and / or a discharge line for the exhaust air. At least between the interior and the environment above ground, the supply line and / or the discharge line are formed by at least one jacket pipe, in particular by two separate jacket pipes.

[0047] The jacket pipes can be arranged parallel to each other along the jacket wall and / or wound spirally around the jacket wall parallel to each other.

[0048] The terms "horizontal", "horizontal", "vertical" and "vertical" always refer to the installation and use position of the earth cellar and / or large pipe body at its installation location in the gravitational field of a planet, preferably the Earth.

[0049] The invention permits various embodiments. Some are listed below as examples. The invention is not limited to the embodiments shown. Individual or multiple features of the following embodiments can also be combined with one another. Fig. 1 shows a schematic representation of an earth cellar in a cross section; Fig. 2 shows a schematic representation of a first embodiment of the structure of a casing wall; Fig. 3 shows a schematic representation of a second embodiment of the structure of a casing wall; Fig. 4 shows a schematic representation of a third embodiment of the structure of a casing wall; Fig. 5 shows a schematic representation of a fourth embodiment of the structure of a casing wall; Fig. 6 shows a schematic representation of a fifth embodiment of the structure of a casing wall; Fig. 7 shows a schematic representation of a sixth embodiment of the structure of a casing wall; Fig. 8 shows a schematic representation of a first embodiment of the use of a jacket pipe; Fig. 9 shows a schematic representation of a second embodiment of the use of two jacket pipes; Fig. 10 shows a schematic representation of an earth cellar in a longitudinal section.

[0050] Fig. 1 shows a large pipe body 1 for laying in the ground 11, as in Fig. 10. The large pipe body 1 consists of a large pipe with an interior space 9 and a casing wall 2. The casing wall 2 has a multi-layer structure and surrounds the interior space 9. The casing wall 2 comprises at least two layers 4, 6, wherein one layer 4 is a body 3 with a solid cross-section and the other layer 6 consists of at least one casing pipe 5, 12 wound along the casing wall 2. The solid body 3, in particular as the innermost layer of the casing wall 2 closest to the interior space, is preferably designed as a large pipe. The two layers 4, 6 are integrally connected, at least adjacent to one another, by a material bond.

[0051] On the inside of the casing wall 2, a plurality of projections 7 are formed, distributed over the circumference and / or in the axial direction, which projections are raised relative to the inner surface 8 of the casing wall 2 towards the interior of the large pipe 1, in particular into the interior space 9.

[0052] The projections 7 can be designed as fastening elements for installation elements 10 in the large pipe body 1 and can have contact surfaces or receiving recesses.

[0053] Furthermore, a walkway 27 is provided in the interior space 9 of the large-diameter pipe body 1. Above the walkway 27, between the walkway 27 and the casing wall 2, a movement space is provided in which at least one person can walk. Below the walkway 27, in particular between the walkway 27 and the casing wall 2, a technical room 28 is provided, which accommodates space for installed elements 10 in the form of lines 15 and / or systems 16.

[0054] The lines 15 and / or systems 16 may partially be elements of a ventilation system 30 of the underground cellar 20. At least part of the ventilation system 30 may be located below the walkway 27.

[0055] Preferably, the ventilation system 30 has a supply line 17 for the fresh air and a discharge line 18 for the exhaust air, which are formed by two separate jacket pipes 5, 12, in particular by two jacket pipes 5, 12 which are arranged parallel to one another along the jacket wall 2 and / or are wound in a spiral shape.

[0056] The Fig. 2 to 7 show different embodiments of the jacket wall 2. These embodiments basically have in common that the layer 4 with the body 3 having a solid cross section borders the interior space 9 and the layer 6 with the at least one jacket tube 5 is arranged further outwards with respect to the interior space 9.

[0057] However, it is also possible and within the scope of the invention for the structure of the jacket wall to be configured in the exact opposite way. In particular, the layer with the at least one jacket tube borders the interior space and the layer with the solid cross-section body is arranged further outward in relation to the interior space. All Fig. The embodiments shown in Figures 2 to 7 may have a layer structure that is opposite to the interior.

[0058] In particular, it is provided that the at least one jacket tube 5 rests against the solid body 3.

[0059] The Fig. 2 shows a first embodiment of the casing wall 2. This embodiment shows the basic shape described above with a solid body 3 and at least one casing tube 5.

[0060] The Fig. 3 shows a second embodiment of the casing wall 2. At least one outer layer 31 is provided, which is applied externally to the layer 6 with the at least one casing tube 5. In particular, it is provided that the outer layer 31 is a body 3 with a solid cross-section.

[0061] The Fig. Figure 4 shows a third embodiment of the casing wall 2. A second outer layer 32 is provided outside the first outer layer 31. The first outer layer 31 consists of a solid body 3, and the second outer layer 32 consists of at least one casing tube 5.

[0062] Fig. Figure 5 shows a fourth embodiment of the casing wall 2. A second outer layer 32 and a third outer layer 33 are provided outside the first outer layer 31. The first outer layer 31 consists of Fig. 4 consists of a solid body 3 and the second outer layer 32 consists of at least one jacket tube 5. The third outer layer 33 again consists of a solid body 3.

[0063] The Fig. Figure 6 shows a fifth embodiment of the casing wall 2. The inner layer 4 is provided by a solid body 3, in particular a large pipe. The further layer 6 of the casing wall 2 consists of two layers of casing pipes 5, 12. Alternatively, the structure of the casing wall 2 in this embodiment can also be described as consisting of the inner layer 4 with a solid body 3, a further layer 6 consisting of a layer of casing pipe 5, and a first outer layer 31 consisting of a further layer of casing pipe 5, 12.

[0064] As described above, it is also possible for the solid body to provide a layer located further outward, and for at least one of the two layers or plies of the casing pipes to be positioned closer to the interior than the solid body. For example, the solid body may be arranged between two layers or plies of casing pipe or provide the outer layer.

[0065] The Fig. Figure 7 shows a sixth embodiment of the casing wall 2, in which the innermost layer 4 and the outermost layer 32 are structurally comparable, here provided as solid bodies 3. The intermediate layers 6, 31 are provided by two layers of casing tube 5, 12.

[0066] The Fig. Figure 8 shows a schematic sectional view of a first embodiment of the use of at least one jacket tube 5 in the jacket wall 2. The jacket tube 5 is wound along the jacket wall 2 around the interior space 9. The circles shown here are sections through the single jacket tube 5. The jacket tube 5 can be attached to a solid body 3 on the inside, i.e., toward the interior space 9, or on the outside.

[0067] The Fig. 9 shows a schematic sectional view of a second embodiment of the use of at least one jacket tube 5, 12 in the jacket wall 2. In particular, several independent jacket tubes 5, 12, for example two jacket tubes 5, 12, are provided, which are wound along the jacket wall 2 around the interior 9. The circles shown here are sections through the jacket tube 5 and the jacket tube 12. The jacket tubes 5, 12 can be attached to a solid body 3 on the inside, i.e., toward the interior 9, or on the outside.

[0068] The Fig. 10 shows a schematic sectional view through an earth cellar 20. The earth cellar is arranged in the ground 11 and comprises an interior space 9 and an access space 29. The earth cellar 20 is made, at least in one section, from a large-diameter pipe body 1. In particular, this is the section for the interior space 9. The earth cellar 20 is closed on at least one of the two end faces 13 of the large-diameter pipe body 1 by an end face cover 14. An access element 21, which contains the access space 29, is preferably provided on the opposite end face 13.

[0069] The access element 21 can also be designed as a large pipe.

[0070] As described above, the casing wall 2 is formed with at least one casing tube 5, 12. This casing tube 5, 12 is fluidically connected to the interior 9 at least at one point, particularly in the region of at least one end face 13 of the large-diameter pipe body 1.

[0071] Preferably, the end cover 14 is connected to the large-diameter pipe body 1 by a material fit and / or force fit. Particularly preferably, the end cover 14 is firmly connected to the large-diameter pipe body 1, so that the end cover 14 forms a non-destructively inseparable unit with the large-diameter pipe body 1.

[0072] Alternatively, the end cover 14 can also be detachably connected to the large-diameter pipe body 1, for example by means of fastening means such as screws in a flange. The end cover 14 can be designed to be fixed to the large-diameter pipe body 1 in a form-fitting and / or force-fitting manner, allowing it to be separated non-destructively.

[0073] One aspect is that the access element 21 is designed as a large pipe.

[0074] One aspect is that the access element 21 has a first end face 22, which is designed for releasable attachment to an end face 13 of the large pipe body 1. Preferably, an access opening 25, in particular closable by means of a door, is formed in the access element 21 on a second end face 23 opposite the first end face 22 or on the casing wall (not shown) of the access element 21. The door can be vertically oriented, as shown in this exemplary embodiment, in particular have a vertical axis of rotation for opening and / or be mounted so as to be vertically displaceable. In the closed state, the door is oriented essentially parallel to the vertical, which includes a deviation of up to 5 degrees from the vertical. This embodiment enables easy access and good visibility of the access.

[0075] Alternatively, the door can also be oriented horizontally. In this case, the door is essentially oriented parallel to the horizontal when closed. A deviation of up to 20 degrees from the horizontal is still considered to be essentially oriented parallel to the horizontal. This type of design has the advantage that the access can be concealed in the ground. It has proven particularly advantageous if the door can be planted and / or driven over. This makes it possible to create the cellar under beds, lawns, terraces or courtyards, which allows particularly effective use of the property. For opening, such a door has at least one adjustment axis which is oriented at an angle of 0 degrees to 20 degrees to the horizontal. For opening, the door can be rotated about the at least one adjustment axis and / or moved parallel to the adjustment axis.

[0076] The access element 21 comprises a staircase 26, wherein the longitudinal extent of the access space 29 of the access element 21 is inclined relative to the longitudinal extent of the interior space 9 of the large-diameter pipe body 1 and / or relative to the horizontal. In particular, in the use position of the earth cellar 20, the longitudinal extent of the interior space 9 is oriented parallel to the horizontal, in particular with a deviation of a maximum of 5 degrees. Particularly preferably, the access opening 25 is located higher than the upper edge of the interior space 9 of the large-diameter pipe body 1.

[0077] As in Fig. 1 shows 20 built-in elements 10 fixed in the interior space 9 of the large pipe body 1 of the earthwork cellar, some of which are preferably made of wood.

[0078] The underground cellar 20 preferably has a ventilation system 30, which supplies fresh air into the interior 9 and exhaust air out of the interior 9. A walkway 27 is provided in the interior 9 of the large-diameter pipe body 1. For example, a portion of the ventilation system 30 can be located beneath the walkway.

[0079] The ventilation system 30 has a supply line 17 for the fresh air and a discharge line 18 for the exhaust air, which are formed by two separate jacket pipes 5, 12. In particular, two independent jacket pipes 5, 12 can be provided, which are arranged parallel to each other along the jacket wall 2 and / or are wound spirally around the interior space 9 along the jacket wall 2. Reference symbol 1 large pipe body 2 shell wall 3 massive body 4 a layer of the mantle wall 5 jacket pipe 6 a layer of the mantle wall 7 projections 8 inner surface 9 Interior 10 built-in elements 11 Soil 12 jacket pipe 13 Front side 14 front cover 15 lines 16 systems 17 Supply line 18 Derivation 20 earth cellars 21 Access element 22 front side 23 Front side 25 Access opening 26 Stairs 27 Running floor 29 Access room 30 Ventilation system 31 outer layer 32 second outer layer 33 third outer layer QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 25 04 883 A1

[0002] GB 905 766 A

[0002] EP 1 231 423 A1

[0002] EP 1 794 485 B1

[0002]

Claims

[1] Large pipe body (1) for laying in the ground, wherein the large pipe body (1) consists of a large pipe with an interior space (9), wherein the large pipe body (1) has at least one jacket wall (2) which surrounds the interior (9) of the large pipe body (1), wherein the jacket wall (2) has at least two layers (4, 6), of which one layer (4) is a solid body (3) in cross-section and the other layer (6) consists of at least one jacket tube (5, 12) wound along the jacket wall (2), wherein the two layers (4, 6) are firmly bonded, characterized by , that on the inside of the casing wall (2) distributed over the circumference and / or in the axial direction, a plurality of projections (7) are formed which are raised relative to the inner surface (8) of the casing wall (2) towards the interior of the large pipe (1). [2] Large pipe body (1) according to the preceding claim, wherein the layer (4) with the solid cross-sectional body (3) borders the interior (9) and the layer (6) with the at least one jacket tube (5) is arranged further outwards with respect to the interior (9), in particular wherein the at least one jacket tube (5) rests against the solid body. [3] Large pipe body (1) according to the preceding claim, wherein at least one outer layer (31) is provided, which is applied externally to the layer (6) with the at least one jacket pipe (5), in particular wherein the outer layer (31) is a body (3) with a solid cross-section. [4] Large pipe body (1) according to one of the preceding claims, wherein the projections (7) are designed as fastening elements for installation elements (10) in the large pipe body (1) and have contact surfaces or receiving recesses. [5] Large pipe body (1) according to one of the preceding claims, wherein the at least one jacket pipe (5, 12) of the jacket wall (2), in particular in the region of at least one end face (13) of the large pipe (1), is fluidically connected to the interior space (9) at least at one point. [6] Large pipe body (1) according to one of the preceding claims, wherein the large pipe body (1) is designed as an earth cellar (20) and the large pipe body (1) has an end cover (14) on at least one of the two end faces (13) and the large pipe body (1) has an access element (21) with the access space (29), in particular wherein the access element (21) is arranged on one of the two end faces (13) of the large pipe body (1). [7] Large pipe body (1) according to one of the preceding claims, wherein the front cover (14) is firmly connected to the large pipe and forms a non-destructive, inseparable unit with the large pipe or the front cover (14) is designed to be form-fitting and / or force-fitting and can be fixed to the large pipe in a non-destructive manner. [8] Large pipe body (1) according to one of the preceding claims, wherein the access element (21) is designed as another large pipe and / or the access element (21) has a first end face (22) which is designed for releasable attachment to an end face (13) of a large pipe, wherein a second end face (23) opposite the first end face (22) or the casing wall of the access element (21) has an access opening (25), in particular closable by means of a door, and / or the access element (21) has a staircase (26), wherein the longitudinal extent of the access space (29) of the access element (21) is inclined relative to the longitudinal extent of the interior space (9) of the large pipe and / or relative to the horizontal. [9] Large pipe body (1) according to one of the preceding claims, wherein at least in the interior (9) of the large pipe body (1) some of the built-in elements (10) are made of wood and / or a walkway (27) is provided at least in the interior space (9) of the large pipe body (1), wherein above the walkway (27) between the walkway (27) and the casing wall (2) a movement space is provided in which at least one person can walk, and in particular below the walkway (27) between the walkway (27) and the casing wall (2) a technical space (28) is provided, in which in particular built-in elements (10) in the form of lines (15) and / or systems (16) are accommodated, and / or a running floor (27) is provided at least in the interior (9) of the large pipe body (1), wherein the running floor (27) consists of a flat floor made up of several individual segments, in particular plates and / or boards, and / or at least in the interior (9) of the large pipe body (1) a running floor (27) is provided, which consists of several installation elements (10). [10] Large pipe body (1) according to one of the preceding claims, wherein a ventilation system (30) is provided which supplies fresh air into the interior space (9) and exhaust air from the interior space (9). [11] Large pipe body (1) according to one of the preceding claims, wherein the ventilation system (30) has a supply line (17) for the fresh air and a discharge line (18) for the exhaust air, which are formed by two separate jacket pipes (5, 12), in particular by two jacket pipes (5, 12) which are arranged parallel to one another along the jacket wall (2) and / or are wound spirally around the jacket wall (2).

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