building

Abstract

To provide a building in which embankments are provided in garden areas, capable of suppressing water contained in the embankments from permeating into the foundation soil. [Solution] A building (10) comprises a foundation (20), a building main body (40) supported by the foundation (20) with a space between it and a foundation earth floor (30), and a garden (60) adjacent to the foundation (20). The garden (60) has embankment (70) piled up on the ground (1) and a trench member (80) placed between the embankment (70) and the building main body (40). The trench member (80) has an inner wall portion (81), an outer wall portion (82) in contact with the embankment (70), and a bottom portion (83) connecting the lower end of the inner wall portion (81) and the lower end of the outer wall portion (82). The upper surface (71) of the embankment (70) is located higher than the upper surface (31) of the foundation earth floor (30). The upper surface (91) of the trench member (80) is located higher than the upper surface (31) of the foundation earth floor (30).

Description

[Technical Field]

[0001] The present disclosure relates to buildings. [Background technology]

[0002] In buildings where a garden is provided adjacent to the main building, the top surface of the garden may be brought closer to the floor of the room. One method for bringing the top surface of the garden closer to the floor of the room is to use earthworks. In Patent Document 1, an outdoor floor is provided in the garden, and an earthwork (a raised planting area in Patent Document 1) is formed between the wall at the boundary line of the property and a retaining wall formed near the legs of the outdoor floor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-019100 Summary of the Invention [Problem to be solved by the invention]

[0004] In the garden of Patent Document 1, it is also possible to build an embankment up to the exterior wall of the main building without providing an outdoor floor. However, if the embankment is built up to the exterior wall, there is a risk that the embankment will come into contact with the foundation of the building and water contained in the embankment will seep into the soil floor of the foundation. [Means for solving the problem]

[0005] (1) A building that solves the above problem is a building erected on the ground, and comprises a foundation having a rising portion protruding from the ground and a foundation floor that is provided on the ground and connected to the inner surface of the rising portion, a building body supported by the foundation so as to leave a space between it and the foundation floor, and a garden area adjacent to the foundation, wherein the garden area has an embankment piled on the ground and a trench member arranged between the rising portion and the embankment, and the trench member has an inner wall portion arranged to follow the outer surface of the rising portion, an outer wall portion arranged to leave a space between it and the inner wall portion and in contact with the embankment, and a bottom portion connecting the lower end of the inner wall portion and the lower end of the outer wall portion, wherein the upper surface of the embankment is higher than the upper surface of the foundation floor, and the upper surface of the trench member is higher than the upper surface of the foundation floor.

[0006] According to this configuration, in buildings with embankments in the garden area, the provision of a groove member between the embankment and the rising part of the foundation prevents the embankment from coming into contact with the rising part of the foundation, thereby preventing water contained in the embankment from seeping into the foundation soil.

[0007] (2) In the building described in (1) above, the channel member is fixed to the ground. With this configuration, since the channel member is fixed to the ground, it is possible to prevent the earth pressure of the embankment from being applied to the rising part of the foundation.

[0008] (3) In the building described in (1) or (2) above, the channel member has a channel opening that opens upward, and the channel opening is covered with a lid. With this configuration, the lid can prevent objects from falling into the channel space of the channel member.

[0009] (4) In the building described in (3) above, the building body has a room with a windowpane through which the garden can be seen, and the angle formed by the floor of the room and an imaginary line connecting the lower edge of the windowpane and the outer edge of the lid is between 40 and 50 degrees. With this configuration, when a person in the room looks at the garden through the windowpane, the lid is difficult to see. This improves the view of the garden from the room.

[0010] (5) In the building described in (4) above, the vertical distance from the top surface of the embankment to the floor of the room is 200 mm or more and 250 mm or less. This configuration can prevent water from entering the room from the garden and makes it easy to see the top surface of the embankment from the room.

[0011] (6) In the building described in any one of (3) to (5) above, covering soil is piled on the lid portion. According to this configuration, since covering soil is piled on the lid portion, the lid portion is less noticeable in the garden area.

[0012] (7) In the building described in any one of (1) to (6) above, a waterproofing member is provided between the rising portion and the inner wall portion. According to this configuration, since the waterproofing member is provided between the rising portion of the foundation and the inner wall portion of the groove member, it is possible to prevent water seeping into the groove member from penetrating into the foundation soil.

[0013] (8) In the building described in any one of (1) to (7) above, the building body has an exterior wall located above the rising portion and a window provided in the exterior wall, and a gutter is provided at the lower end of at least one of the exterior wall and the window so that water flows into the gutter member. With this configuration, water flowing on the exterior wall or window flows into the gutter member via the gutter, making it less likely to flow into the embankment. This improves drainage in the garden area.

[0014] (9) In the building described in any one of (1) to (8) above, a seepage pipe is buried in the embankment. With this configuration, since the seepage pipe is buried in the embankment, water that has permeated the embankment due to rain flows into the seepage pipe. This improves drainage in the garden area.

[0015] (10) In the building described in (9) above, the foundation has a base portion connected to the lower end of the rising portion and buried in the ground, and the infiltration pipe is placed within the embankment on a filled portion of the ground, which is a buried portion of the ground in which a ground trench in which the base portion is placed is located.

[0016] Because the fill section is installed to connect the ground below the garden area with the ground below the foundation floor, there is a risk that water contained in the embankment will flow down the fill section into the ground below the foundation floor. With the above configuration, water that has permeated into the embankment above the fill section flows into the permeation pipe, preventing water contained in the embankment from flowing down the fill section into the ground below the foundation floor.

[0017] (11) In the building described in (10) above, the groove member is disposed above the landfill portion. With this configuration, since the groove member is disposed above the landfill portion, it is possible to prevent water such as rainwater and rainwater running down the building body from flowing into the landfill portion.

[0018] (12) In the building described in any one of (1) to (11) above, the embankment contains at least one of crushed stone and lightweight soil. According to this configuration, the embankment contains at least one of crushed stone and lightweight soil, which improves the drainage of the embankment. [Effects of the Invention]

[0019] According to the building of the present disclosure, in a building in which embankments are provided in the garden area, it is possible to prevent water contained in the embankments from seeping into the foundation soil. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a schematic diagram of a building according to an embodiment. [Figure 2] FIG. 2 is a cross-sectional view of the building taken along line D2-D2 in FIG. [Figure 3] FIG. 2 is a cross-sectional view of the area around the foundation below the window in the building of FIG. 1. [Figure 4] FIG. 2 is a cross-sectional view of the area around the foundation below the exterior wall of the building in FIG. 1. [Figure 5] This is a view of the garden from a room in the building in Figure 1. [Figure 6] FIG. 10 is a cross-sectional view of the periphery of the foundation below the exterior wall in a building according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0021] <Embodiment> A building 10 according to an embodiment will be described with reference to Figures 1 to 5. The building 10 is, for example, a house, a commercial facility, a public facility, etc. In this embodiment, the building 10 will be described as a detached house.

[0022] <Buildings> As shown in FIG. 1, building 10 is built on ground 1. Note that in FIG. 1, the site of building 10 is indicated by a dashed line. Building 10 has a building main body 40 and a wall 11. An open-ceiling space AS is formed inside wall 11. The open-ceiling space AS is surrounded by wall 11 and an outer wall 41 of building main body 40, which will be described later. Wall 11 may be formed integrally with building main body 40. Wall 11 may be provided with louvers 12 that allow visibility from the inside to the outside. The open-ceiling space AS is also called a loggia.

[0023] As shown in Fig. 2, two open-ceiling spaces AS are formed in the building 10. GL (ground level) is defined on the ground surface 2 of the ground 1. The building 10 includes a foundation 20, a building body 40, and a garden 60.

[0024] <Basics> The foundation 20 shown in Fig. 3 supports a building body 40. The foundation 20 is made of reinforced concrete. The foundation 20 is, for example, a continuous footing. The foundation 20 has a rising portion 21, a base portion 24, and a foundation earth floor 30.

[0025] The rising portion 21 protrudes from the ground 1. A part of the rising portion 21 forms the outer periphery of the foundation 20. The rising portion 21 is arranged between the foundation floor 30 and the garden area 60. The inner surface 22 of the rising portion 21 faces the foundation floor 30. The outer surface 23 of the rising portion 21 faces the garden area 60. The lower part of the rising portion 21 is buried in the ground 1.

[0026] The base portion 24 is buried in the ground 1. The base portion 24 is connected to the lower end of the rising portion 21. The base portion 24 is formed integrally with the rising portion 21. The base portion 24 is wider than the rising portion 21 in the horizontal direction.

[0027] In this specification, the portion of the ground 1 where the base portion 24 is buried is referred to as the reclaimed portion 3. Specifically, the reclaimed portion 3 is the portion where the ground trench 4 in which the base portion 24 is placed is filled. The ground trench 4 is dug to create the rising portion 21 and the base portion 24. In one example, the ground trench 4 is filled with the same type of soil as the soil of the ground 1. In FIG. 3, the ground trench 4 is indicated by a dashed line. The reclaimed portion 3 is the portion of the ground 1 surrounded by the dashed line.

[0028] A crushed stone layer 25 filled with crushed stone is provided at the bottom of the ground trench 4. The base portion 24 is placed on the crushed stone layer 25. A first width L1 from the side of the bottom of the ground trench 4 to the base portion 24 is set to, for example, 100 mm or more. The width of the ground trench 4 is larger than the width of the base portion 24 by 200 mm or more.

[0029] In the vertical direction, a first distance D1 from the ground surface 2 of the ground 1 to the upper surface 26 of the foundation 20 is 400 mm or more and 450 mm or less. In one example, the first distance D1 is 420 mm. The upper surface 26 of the foundation 20 is the upper surface of the rising portion 21.

[0030] The foundation floor 30 shown in Fig. 3 is made of reinforced concrete. The foundation floor 30 is built on the ground 1. The upper surface 31 of the foundation floor 30 is located higher than the ground surface 2. The foundation floor 30 is connected to the inner surface 22 of the rising portion 21. The foundation floor 30 covers the ground 1 inside the rising portion 21, which is partitioned by the rising portion 21 of the foundation 20.

[0031] In the vertical direction, a second distance D2 from the ground surface 2 of the ground 1 to the upper surface 31 of the foundation soil slab 30 is 50 mm or more and 70 mm or less. In one example, the second distance D2 is 60 mm.

[0032] <Building itself> As shown in Figure 2, the building body 40 is supported by the foundation 20 so as to leave a space between it and the foundation dirt floor 30. The building body 40 has an exterior wall 41 and a window 42. The exterior wall 41 is located on the rising portion 21 of the foundation 20 (see Figure 3). The exterior wall 41 is located between a room 49 of the building body 40 and the open-ceiling space AS. The window 42 is provided in the exterior wall 41. An example of the window 42 is a French window. The building body 40 further has a roof 40R.

[0033] As shown in FIG. 3, the window 42 is provided in the exterior wall 41. The window 42 connects the room 49 and the open-ceiling space AS. The window 42 has a window sash 43, a frame 44F, and window glass 44G. The window sash 43 is a frame attached to the exterior wall 41. The frame 44F is attached to the window sash 43. The frame 44F may be movable relative to the window sash 43 or may be fixed. The window glass 44G is fitted inside the frame 44F. In FIG. 3, the lower frame of the frame 44F is shown.

[0034] A drip edge 45 is provided at the lower end of at least one of the exterior wall 41 and the window 42. In this embodiment, the drip edge 45 is provided at both the lower end of the exterior wall 41 and the lower end of the window 42. The drip edge 45 includes a first drip edge 45A (see FIG. 4) provided at the lower end of the exterior wall 41 and a second drip edge 45B provided at the lower end of the window 42. In one example, the second drip edge 45B is attached to the bottom frame of the window sash 43.

[0035] As shown in Fig. 4, the exterior wall 41 includes a base panel 47 attached to the framework of the building body 40, an exterior material 48 attached to the base panel 47, and an interior wall board 52. The framework of the building body 40 is composed of axial members such as columns, cross members, and foundations. In one example, the second drip edge 45B is fixed to the base panel 47.

[0036] As shown in FIG. 3, the building body 40 has a room 49. The room 49 can be used as, for example, a living room, a kitchen, a dining room, a private room, or the like. The room 49 is located between two open-ceiling spaces AS (see FIG. 1). The room 49 and the open-ceiling space AS are separated by an exterior wall 41. The room 49 is provided with a windowpane 44G. The windowpane 44G allows people to view the garden 60 from the room 49.

[0037] The floor surface 53 of the room 49 is formed by floor material 54. The floor material 54 is supported by first cross members 55. The first cross member 55 is supported by the foundation 20 via columns. A underfloor space US is provided between the floor material 54 of the building main body 40 and the upper surface 31 of the foundation dirt floor 30. The building main body 40 may be further supported on the foundation dirt floor 30 via support members 57. The support members 57 support a second cross member 56 on the foundation dirt floor 30. The first cross member 55 is arranged on top of the second cross member 56 so as to intersect with the second cross member 56. The first cross member 55 and the second cross member 56 are axial members arranged along the horizontal direction.

[0038] <Garden> As shown in FIG. 2 , the garden 60 is adjacent to the foundation 20. The garden 60 is provided in an open-ceiling space AS. The garden 60 is open upward through the open-ceiling space AS. Plants 61 are planted in the garden 60. The garden 60 is configured as, for example, a courtyard of the building 10. The garden 60 is surrounded by the outer wall 41 of the building main body 40 and the wall 11.

[0039] 3, the garden area 60 has an embankment 70 and a trench member 80. The embankment 70 is piled up on the ground 1. The trench member 80 is disposed between the rising portion 21 of the foundation 20 and the embankment 70.

[0040] <Embankment> As shown in FIG. 3, the embankment 70 is surrounded by a channel member 80 and a wall foundation 13 that supports the lower end of the wall 11 (see FIG. 2). At least a portion of the embankment 70 is piled on top of the reclaimed portion 3 of the ground 1. The embankment 70 includes at least one of crushed stone and lightweight soil. The embankment 70 is made up of crushed stone or lightweight soil. In this embodiment, the embankment 70 includes both crushed stone and lightweight soil.

[0041] The type of stone used for the crushed stone is not particularly limited. The crushed stone for the embankment 70 is larger in size than the crushed stone for the crushed stone layer 25 below the foundation 20 and the crushed stone for the crushed stone layer 86 below the trench member 80 (described later). Using larger crushed stones for the embankment 70 improves the appearance of the garden 60.

[0042] The lightweight soil is, for example, artificial soil. The lightweight soil is lighter than the soil of the ground 1. The lightweight soil used as the embankment 70 has better drainage properties than the soil of the ground 1. Crushed stone and lightweight soil are spread on the ground 1 so that the upper surface 71 of the embankment 70 is roughly horizontal. The embankment 70 has a sloped portion 72 that slopes from the upper surface 71 of the embankment 70 to the upper end of the outer wall portion 82 of the trench member 80.

[0043] FIG. 5 shows the garden 60 as viewed from the room 49. In the garden 60 of FIG. 5, the upper surface 71 of the embankment 70 is divided into a first range R1 on the room 49 side and a second range R2 on the wall 11 side. Crushed stone is laid in the first range R1 on the room 49 side. Meanwhile, lightweight soil is laid in the second range R2 on the wall 11 side. Plants 61 are planted in the lightweight soil in the second range R2. If the embankment 70 contains crushed stone, the plants 61 may be planted in the ground 1 below the crushed stone that is the embankment 70 (see FIG. 3).

[0044] 3, a third distance D3 in the vertical direction from the upper surface 71 of the embankment 70 to the floor surface 53 of the room 49 is equal to or greater than 200 mm and equal to or less than 250 mm. In one example, the third distance D3 is 200 mm.

[0045] An upper surface 71 of the embankment 70 is located higher than an upper surface 31 of the foundation floor 30. A fourth distance D4 in the vertical direction from the upper surface 31 of the foundation floor 30 to the upper surface 71 of the embankment 70 is equal to or greater than 280 mm and equal to or less than 295 mm. In one example, the fourth distance D4 is 287 mm.

[0046] A seepage pipe 73 is buried in the embankment 70. Water contained in the embankment 70 flows into the seepage pipe 73, which then carries the water to a drainage channel (not shown) of the building 10. The seepage pipe 73 is made of a cylindrical material such as a metal material or a resin material. Seepage holes 74 are provided on at least one of the top and side surfaces of the seepage pipe 73. The water contained in the embankment 70 flows from the seepage holes 74 into the seepage pipe 73. The seepage pipe 73 may be made of a water-permeable material such as a mesh material or nonwoven fabric. If the seepage pipe 73 is made of a water-permeable material, the seepage holes 74 are omitted.

[0047] The permeation pipe 73 is placed on the reclaimed portion 3 of the ground 1 in the embankment 70. The permeation pipe 73 is placed so as to follow the outer wall portion 82 of the channel member 80 in the horizontal direction.

[0048] <Groove member> The channel member 80 is, for example, a U-shaped channel made of concrete. The channel member 80 is placed on the reclaimed portion 3 of the ground 1. The channel member 80 is placed so as to follow the rising portion 21 of the foundation 20 in the horizontal direction.

[0049] The trench member 80 has an inner wall portion 81, an outer wall portion 82, and a bottom surface portion 83. The inner wall portion 81 is arranged so as to follow the outer surface 23 of the rising portion 21. The outer wall portion 82 is arranged so as to leave a space between itself and the inner wall portion 81. The outer wall portion 82 contacts the embankment 70. The bottom surface portion 83 connects the lower end of the inner wall portion 81 and the lower end of the outer wall portion 82. A trench space is formed between the inner wall portion 81 and the outer wall portion 82.

[0050] The gutter member 80 has a gutter opening 84. The gutter opening 84 opens upward. The gutter opening 84 is connected to the gutter space of the gutter member 80. The gutters 45 of the building main body 40 are positioned to allow water to flow into the gutter member 80 of the garden section 60. Water running down the gutters 45 flows into the groove space of the gutter member 80. The water that flows into the gutter member 80 flows into the drainage channel (not shown) of the building 10.

[0051] The trench opening 84 is covered by a lid portion 87. The lid portion 87 is hung on the upper end of the inner wall portion 81 and the upper end of the outer wall portion 82 of the trench member 80. The lid portion 87 has an insertion hole. The insertion hole connects the trench space of the trench member 80 with the space above the trench member 80. The insertion hole is set to a size that makes it difficult for crushed stone of the embankment 70 to pass through. The lid portion 87 is, for example, grating. In addition to the lid portion 87, a net 88 is stretched over the trench opening 84. The net 88 has mesh that is smaller than the insertion hole of the lid portion 87.

[0052] The channel member 80 is fixed to the ground 1. A fixing layer 85 is provided below the channel member 80. The channel member 80 is placed on the fixing layer 85. In one example, the fixing layer 85 is made of mortar. The channel member 80 may be fixed to the fixing layer 85. For example, the channel member 80 is fixed to the fixing layer 85 by placing the channel member 80 on unhardened mortar, so that the channel member 80 adheres to the fixing layer 85. In this way, the channel member 80 is fixed to the ground 1 by the fixing layer 85. A crushed stone layer 86, in which crushed stone is laid, is provided below the fixing layer 85. The crushed stone layer 86 is provided on the ground 1. The fixing layer 85 and the crushed stone layer 86 are placed between the foundation 20 and the embankment 70.

[0053] Cover soil 89 is piled on top of the lid portion 87. The cover soil 89 includes, for example, crushed stone. The crushed stone of the cover soil 89 may be the same type as the crushed stone of the embankment 70, or may be a different type. The crushed stone of the cover soil 89 is preferably of a size that makes it difficult for it to pass through the insertion hole of the lid portion 87.

[0054] The second width L2 of the channel member 80 in the horizontal direction is equal to or greater than 200 mm and equal to or less than 300 mm. In one example, the second width L2 of the channel member 80 is 250 mm. The second width L2 of the channel member 80 is the distance from the surface of the inner wall portion 81 facing the foundation 20 to the surface of the outer wall portion 82 facing the embankment 70.

[0055] 3, an imaginary line VL is defined that connects the lower edge 51 of the window glass 44G to the outer edge 87X of the lid portion 87. The lower edge 51 of the window glass 44G is connected to the lower frame of the frame 44F. More specifically, the lower edge 51 of the window glass 44G is connected to the end of the lower frame of the frame 44F that faces the open-ceiling space AS. The outer edge 87X of the lid portion 87 is the end of the lid portion 87 that faces the outer wall portion 82 of the channel member 80.

[0056] The angle A1 formed between the floor surface 53 of the room 49 and the imaginary line VL is equal to or greater than 40 degrees and equal to or less than 50 degrees. In one example, the angle A1 is 45 degrees.

[0057] The upper surface 91 of the channel member 80 is located higher than the upper surface 31 of the foundation soil floor 30. A fifth distance D5 in the vertical direction from the upper surface 31 of the foundation soil floor 30 to the upper surface 91 of the channel member 80 is equal to or greater than 230 mm and equal to or less than 245 mm. In one example, the fifth distance D5 is 237 mm. The upper surface 91 of the channel member 80 is, for example, the upper surface of either the upper end of the inner wall portion 81 or the upper end of the outer wall portion 82, whichever is located higher. In the example of FIG. 2, the upper end of the inner wall portion 81 and the upper end of the outer wall portion 82 are located at the same height.

[0058] The upper surface 91 of the channel member 80 is located lower than the upper surface 26 of the foundation 20. The upper surface 91 of the channel member 80 is located lower than the upper surface 71 of the embankment 70.

[0059] 3, a waterproof member 92 is provided between the rising portion 21 of the foundation 20 and the inner wall portion 81 of the channel member 80. The waterproof member 92 includes, for example, a waterproof sheet. The waterproof member 92 contacts both the rising portion 21 and the inner wall portion 81.

[0060] <Operation of this embodiment> The first function of this embodiment will be described. As shown in FIG. 5 , by positioning the upper surface 71 of the embankment 70 in the garden 60 closer to the floor 53 of the room 49 in the vertical direction, the continuity between the floor 53 of the room 49 and the garden 60 is improved when the garden 60 is viewed through the window 42 of the room 49. On the other hand, by placing the embankment 70 on the ground 1 of the garden 60, the embankment 70 comes into contact with the rising portion 21 of the foundation 20. When the embankment 70 comes into contact with the foundation 20, water contained in the embankment 70 may seep into the foundation floor 30. Water seeping into the foundation floor 30 creates moisture in the underfloor space US. In this regard, in the building 10, a groove member 80 is placed between the embankment 70 and the rising portion 21 of the foundation 20, and the groove member 80 prevents the embankment 70 from coming into contact with the foundation 20. This prevents water contained in the embankment 70 from seeping into the foundation floor 30.

[0061] A second function of this embodiment will be described. When the embankment 70 contacts the rising portion 21 of the foundation 20, the earth pressure of the embankment 70 may be applied to the foundation 20. In contrast, in the building 10, the earth pressure of the embankment 70 is applied to the groove member 80. By fixing the groove member 80 to the ground 1, the earth pressure is less likely to be applied to the foundation 20 through the groove member 80.

[0062] A third function of this embodiment will be described. The reclaimed portion 3 of the ground 1 was dug up when the foundation 20 was installed, and therefore is more likely to absorb water than other portions of the ground 1. The reclaimed portion 3 extends from under the garden portion 60 to the ground 1 below the foundation floor 30, so there is a risk that water contained in the embankment 70 will flow down the reclaimed portion 3 and below the foundation floor 30. In this regard, in the building 10, a channel member 80 is disposed above the reclaimed portion 3. For example, during rainy weather, water running down the exterior wall 41 and window 42 flows into the channel member 80, making it difficult for water to flow into the reclaimed portion 3. In addition, a seepage pipe 73 is disposed above the reclaimed portion 3. For example, some of the water contained in the embankment 70 is absorbed by the ground 1, but there are cases where water exceeding the capacity of the ground 1 flows into the reclaimed portion 3. In such cases, the seepage pipe 73 can drain the water contained in the embankment 70.

[0063] A fourth function of this embodiment will be described. Because the embankment 70 contacts the outer wall portion 82 of the channel member 80, water contained in the embankment 70 is less likely to seep into the inner wall portion 81, which is disposed with a space between the outer wall portion 82. Even if water flowing through the channel member 80 seeps into the inner wall portion 81, the waterproofing member 92 makes it less likely that the water in the inner wall portion 81 will seep into the foundation 20.

[0064] <Effects of this embodiment> The effects of this embodiment will be described. (1) Building 10 is erected on ground 1. Building 10 comprises a foundation 20, a building main body 40, and a garden 60. Foundation 20 has a rising portion 21 protruding from ground 1, and a foundation slab 30 provided on top of ground 1 and connected to the inner surface 22 of rising portion 21. Building main body 40 is supported by foundation 20 so as to leave a space between it and foundation slab 30. Garden 60 is adjacent to foundation 20. Garden 60 has embankment 70 piled on top of ground 1 and a trench member 80 arranged between rising portion 21 of foundation 20 and embankment 70. Trench member 80 has an inner wall portion 81, an outer wall portion 82, and a bottom portion 83. Inner wall portion 81 is arranged to fit along the outer surface 23 of rising portion 21. The outer wall portion 82 is disposed so as to leave a space between it and the inner wall portion 81, and is in contact with the embankment 70. The bottom surface 83 connects the lower end of the inner wall portion 81 to the lower end of the outer wall portion 82. The upper surface 71 of the embankment 70 is located higher than the upper surface 31 of the foundation soil floor 30. The upper surface 91 of the groove member 80 is located higher than the upper surface 31 of the foundation soil floor 30.

[0065] According to this configuration, in a building 10 in which an embankment 70 is provided in a garden 60, a groove member 80 is provided between the embankment 70 and the rising portion 21 of the foundation 20, thereby preventing the embankment 70 from coming into contact with the rising portion 21 of the foundation 20. This prevents water contained in the embankment 70 from seeping into the foundation floor 30 of the foundation 20.

[0066] (2) The channel member 80 is fixed to the ground 1. According to this configuration, since the channel member 80 is fixed to the ground 1, the earth pressure of the embankment 70 can be prevented from being applied to the rising portion 21 of the foundation 20.

[0067] (3) The channel member 80 has a channel opening 84 that opens upward. The channel opening 84 is covered by the lid portion 87. With this configuration, the lid portion 87 can prevent objects from falling into the channel space of the channel member 80.

[0068] (4) Building main body 40 has room 49. Room 49 is provided with window glass 44G through which garden 60 can be seen. An angle A1 formed between floor 53 of room 49 and imaginary line VL connecting lower edge 51 of window glass 44G and outer edge 87X of lid 87 is equal to or greater than 40 degrees and equal to or less than 50 degrees.

[0069] With this configuration, it is difficult for a person in the room 49 to see the lid portion 87 when looking at the garden 60 through the window glass 44G. More specifically, if a person who is approximately 171 cm tall stands approximately 150 cm away from the window glass 44G, the lid portion 87 will be difficult for this person to see. 171 cm corresponds to the average height of Japanese men. The eye level of a person who is 171 cm tall is approximately 155 cm. This improves the view of the garden 60 as seen from the room 49.

[0070] (5) A third distance D3 in the vertical direction from the upper surface 71 of the embankment 70 to the floor surface 53 of the room 49 is equal to or greater than 200 mm and equal to or less than 250 mm. This configuration can prevent water from flooding the room 49 from the garden 60 and can make the upper surface 71 of the embankment 70 more easily visible from the room 49.

[0071] (6) Covering soil 89 is piled on top of the lid portion 87. According to this configuration, since the covering soil 89 is piled on top of the lid portion 87, the lid portion 87 is less noticeable in the garden area 60.

[0072] (7) A waterproof member 92 is provided between the rising portion 21 and the inner wall portion 81. According to this configuration, the waterproof member 92 is provided between the rising portion 21 of the foundation 20 and the inner wall portion 81 of the groove member 80, so that water seeping into the groove member 80 can be prevented from penetrating into the foundation 20.

[0073] (8) The building body 40 has an exterior wall 41 and a window 42 provided in the exterior wall 41. The exterior wall 41 is located on the rising portion 21 of the foundation 20. The window 42 is provided in the exterior wall 41. A gutter 45 is provided at the lower end of at least one of the exterior wall 41 and the window 42, and is arranged to direct water into the channel member 80. With this configuration, water flowing through the exterior wall 41 or the window 42 flows into the channel member 80, and the water is less likely to flow into the embankment 70. This improves the drainage of the garden area 60.

[0074] (9) The seepage pipes 73 are buried in the embankment 70. According to this configuration, since the seepage pipes 73 are buried in the embankment 70, water that has seeped into the embankment 70 due to rain flows into the seepage pipes 73. This improves the drainage of the garden 60.

[0075] (10) The foundation 20 has a base portion 24 that is connected to the lower end of the rising portion 21 and is buried in the ground 1. The infiltration pipe 73 is placed in the embankment 70 above the reclaimed portion 3 of the ground 1.

[0076] Since the landfill 3 is provided to connect the ground 1 below the garden area 60 and the ground 1 below the foundation floor 30, there is a risk that water contained in the embankment 70 will flow down the landfill 3 into the ground 1 below the foundation floor 30. With the above configuration, water that has infiltrated into the embankment 70 above the landfill 3 flows into the infiltration pipe 73, so it is possible to prevent the water contained in the embankment 70 from flowing down the landfill 3 into the ground 1 below the foundation floor 30.

[0077] (11) The trench member 80 is placed on the landfill portion 3 of the ground 1. According to this configuration, since the trench member 80 is placed on the landfill portion 3, it is possible to prevent water such as rain and rainwater running down the building main body 40 from flowing into the landfill portion 3.

[0078] (12) The embankment 70 includes at least one of crushed stone and lightweight soil. According to this configuration, the embankment 70 includes at least one of crushed stone and lightweight soil, which improves the drainage of the embankment 70.

[0079] <Modification> The above-described embodiment is an example of a form that the building 10 can take, and is not intended to limit the form. The building 10 can take a form different from the form exemplified in the above-described embodiment. Examples of such a form include a form in which part of the configuration of the embodiment is replaced, modified, or omitted, or a form in which a new configuration is added to the embodiment. Modified examples of the embodiment are shown below.

[0080] In the embodiment, an example in which the foundation 20 is a strip foundation has been described, but the foundation 20 may be a mat foundation.

[0081] If the groove member 80 is located between the foundation 20 and the embankment 70, the groove member 80 does not need to be fixed to the ground 1.

[0082] In the embodiment, the imaginary line VL is defined as connecting the lower edge 51 of the window glass 44G and the outer edge 87X of the lid portion 87, but the imaginary line VL may also be defined as connecting the lower edge 51 of the window glass 44G and the upper edge of the outer wall portion 82 of the channel member 80. In this modification, the lid portion 87 may be omitted.

[0083] The covering soil 89 does not need to be piled on the lid 87.

[0084] The infiltration pipe 73 may be placed in a part of the ground 1 other than above the reclaimed area 3 .

[0085] As shown in FIG. 6 , a fixing layer 93 may be provided between the foundation 20 and the channel member 80. The fixing layer 93 contacts the outer surface 23 of the rising portion 21 of the foundation 20 and the inner wall portion 81 of the channel member 80. The fixing layer 93 is connected to the fixing layer 85 below the channel member 80. The fixing layer 93 may be made of, for example, mortar. When the fixing layer 93 is made of mortar, the inner wall portion 81 of the channel member 80 is fixed to the fixing layer 93. In this manner, the fixing layer 93 can prevent the channel member 80 from moving. The waterproofing member 92 may also be omitted. Because the fixing layer 93 is provided between the rising portion 21 of the foundation 20 and the inner wall portion 81 of the channel member 80, even if water flowing through the channel member 80 penetrates the inner wall portion 81, the water on the inner wall portion 81 is less likely to penetrate into the foundation 20. In this modification, the first drip edge 45A may be omitted from the lower end of the exterior wall 41.

[0086] The embankment 70 may be made of not only crushed stone and lightweight soil, but also natural soil, gravel, etc.

[0087] The present specification discloses the following techniques. [Appendix 1] a building constructed on the ground, the building comprising: a raised portion protruding from the ground; a foundation provided on the ground and having a foundation floor connected to the inner surface of the raised portion; a building body supported by the foundation so as to leave a space between the building body and the foundation floor; and a garden area adjacent to the foundation, the garden area having an embankment piled on the ground and a trench member arranged between the raised portion and the embankment, the trench member having an inner wall portion arranged to follow the outer surface of the raised portion, an outer wall portion arranged to leave a space between the inner wall portion and contact the embankment, and a bottom portion connecting the lower end of the inner wall portion and the lower end of the outer wall portion, the upper surface of the embankment being higher than the upper surface of the foundation floor, and the upper surface of the trench member being higher than the upper surface of the foundation floor.

[0088] [Appendix 2] 2. The building of claim 1, wherein the channel member is fixed to the ground.

[0089] [Appendix 3] The building described in Appendix 1, wherein the channel member has a channel opening that opens upward, and the channel opening is covered by a lid portion.

[0090] [Appendix 4] The building described in Appendix 3, wherein the main body of the building has a room, the room is provided with a window glass through which the garden can be seen, and the angle formed by the floor of the room and an imaginary line connecting the lower edge of the window glass and the outer end of the cover is between 40 degrees and 50 degrees.

[0091] [Appendix 5] A building as described in Appendix 4, wherein the distance from the top surface of the embankment to the floor surface of the room in the vertical direction is 200 mm or more and 250 mm or less.

[0092] [Appendix 6] 4. The building described in Appendix 3, wherein covering soil is piled on top of the lid portion.

[0093] [Appendix 7] The building described in Appendix 1, wherein a waterproofing member is provided between the rising portion and the inner wall portion.

[0094] [Appendix 8] The building described in Appendix 1, wherein the main body of the building has an exterior wall located above the rising portion and a window provided in the exterior wall, and a drip edge is provided at the lower end of at least one of the exterior wall and the window so as to direct water into the groove member.

[0095] [Appendix 9] 2. The building of claim 1, wherein the fill has an infiltration pipe buried therein.

[0096] [Appendix 10] The building described in Appendix 9, wherein the foundation has a base portion connected to the lower end of the rising portion and buried in the ground, and the infiltration pipe is placed within the embankment on top of a filled-in portion of the ground that is a buried ground trench in which the base portion is placed.

[0097] [Appendix 11] 11. The building of claim 10, wherein the channel member is positioned above the fill portion.

[0098] [Appendix 12] 12. The building of any one of claims 1 to 11, wherein the fill comprises at least one of crushed stone and lightweight soil. [Explanation of symbols]

[0099] 1...ground, 3...filled portion, 4...ground trench, 10...building, 20...foundation, 21...rising portion, 22...inner surface, 23...outer surface, 24...base portion, 30...foundation floor, 40...building body, 41...exterior wall, 42...window, 44G...window glass, 45...gutter, 49...room, 51...lower edge portion, 53...floor surface, 60...garden portion, 70...embankment, 73...infiltration pipe, 80...trench member, 81...inner wall portion, 82...exterior wall portion, 83...bottom portion, 84...trench opening, 87...lid portion, 87X...outer end portion, 89...covering soil, 92...waterproof member.

Claims

1. A building erected on the ground, The building comprises a foundation having a rising portion protruding from the ground and a foundation slab provided on the ground and connected to the inner surface of the rising portion, a building body supported by the foundation so as to leave a space between the building body and the foundation slab, and a garden area adjacent to the foundation, The garden portion includes an embankment piled on the ground and a groove member disposed between the rising portion and the embankment, The groove member has an inner wall portion arranged along the outer surface of the rising portion, an outer wall portion arranged to leave a space between the inner wall portion and the outer wall portion and in contact with the embankment, and a bottom surface portion connecting a lower end of the inner wall portion and a lower end of the outer wall portion, The upper surface of the embankment is located higher than the upper surface of the foundation soil, The upper surface of the groove member is located higher than the upper surface of the foundation soil. architecture.

2. The channel member is fixed to the ground. The building according to claim 1.

3. The groove member has a groove opening that opens upward, The groove opening is covered by a lid. The building according to claim 1.

4. The building body has a room, The room is provided with a window glass through which the garden can be seen, The angle formed by the floor of the room and an imaginary line connecting the lower edge of the window glass and the outer edge of the lid is between 40 degrees and 50 degrees. The building according to claim 3.

5. The distance from the top surface of the embankment to the floor surface of the room in the vertical direction is 200 mm or more and 250 mm or less. The building according to claim 4.

6. Cover soil is piled on top of the lid. The building according to claim 3.

7. A waterproof member is provided between the rising portion and the inner wall portion. The building according to claim 1.

8. The building main body has an exterior wall located on the rising portion and a window provided in the exterior wall, A water drip is provided at the lower end of at least one of the exterior wall and the window so as to allow water to flow into the channel member. The building according to claim 1.

9. An infiltration pipe is buried in the embankment. The building according to claim 1.

10. The foundation has a base portion connected to a lower end of the rising portion and buried in the ground, The infiltration pipe is placed in the embankment on a filled portion of the ground, which is a portion of the ground where a ground trench in which the base portion is placed is filled in. The building according to claim 9.

11. The groove member is disposed on the fill portion. The building according to claim 10.

12. The embankment includes at least one of crushed stone and lightweight soil. A building according to any one of claims 1 to 11.

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