JPH02217520A - Foundation mechanism for tower-shaped structure or the like - Google Patents

Abstract

PURPOSE:To enable work to be executed in a short time with the excavation work of a minimum range by fixing a base section support erected in a state contained in a foundation box body, to be supported at two points at least on the upper and lower sections of the foundation box body embedded in ground for setting the body. CONSTITUTION:In an excavated vertical hole, a foundation box body 10 with a bottom is set, and into this body 10, a base section support 2 in a triangular shape from the viewpoint of a plane is inserted, and on three projections 18 arranged on a lower frame member 13, the lower end of the base section support 2 is fitted. After that, by connecting bolts 21, bolt bearing plates 26 on the side of the base section support 2 are placed between three upper-section-fixing sections 19 for enabling the erected state of the base section support 2 to be regulated, and the base section support 2 is fixed. Then, to the support 2, a plurality of movable supports 3 and lighting lamps 4 are connected, and in the support body, a telescopic lighting device 1 to be freely housed is formed.

Description

[Detailed Description of the Invention] (Object of the Invention) <Industrial Application Field> The present invention relates to a foundation structure suitable for installing a tower-like structure, such as a pillar for supporting lighting lights or a low-rise tower. It is.

<Background of the Invention> For example, in places such as golf courses where it is necessary to maintain the natural scenery around the course, it is necessary to take care not to damage the natural scenery when constructing auxiliary facilities such as lighting. be. For this reason, the applicant has filed a patent application No. 63-183218.
This includes applications such as No. ``Lighting Device'' and Japanese Patent Application No. 183219/1983 ``Auxiliary Facilities for Golf Courses, etc.''. However, from the perspective of preserving the natural landscape, maintaining the landscape in the installed state after completion is an issue, and the impact on the natural environment should be kept to a minimum during construction. The construction work must be carried out to a minimum in terms of space and time so that the construction scope is limited to only one area and the construction time is also kept to a minimum.

Technical matters for which development was attempted> The present invention was made in view of this background, and
In establishing these facilities, we attempted to develop a new foundation structure, such as a tower-like structure, that would allow for the minimum range of excavation work and construction in the shortest possible time.

(Structure of the invention) <Means for achieving the object> That is, the basic structure of a tower-like structure, etc., which is the first invention related to this application, consists of a basic box buried underground to the entire height or a part of the height, and the inside thereof. and a base support which is erected in a stored state, and the base support is substantially fixed to the basic box at at least two points above and below.

Furthermore, in addition to the above-mentioned requirements, the foundation structure of a tower-like structure or the like according to the second invention of the present application is such that, in addition to the above-mentioned requirements, the fixing position of the foundation box and the base support can be freely adjusted at one or both of their fixing parts. It is characterized by this.

Furthermore, the foundation structure of a tower-like structure or the like according to the third invention of the present application is characterized in that, in addition to the above-mentioned requirements, the bottom of the foundation box is closed.

Furthermore, the foundation structure of a tower-shaped structure or the like according to the fourth invention of the present application is characterized in that, in addition to meeting the above requirements, the bottom of the foundation box is open.

Furthermore, the foundation structure of a tower-like structure or the like according to the fifth invention of the present application is characterized in that, in addition to the above-mentioned requirements, the inside of the foundation box is filled with concrete.

These inventions attempt to achieve the above object.

(Operation of the invention) With this configuration, the foundation box is embedded and fixed in the ground rock to be installed, and the base support is supported by this, and the foundation box is also attached to the structure. Actively act as a part. The foundation box is fixed underground by simply burying it; the actual construction is simply a matter of digging a small hole with a backhoe, etc., and then sinking the foundation box into it. Just fill it in. Therefore, if the work is completed, the burying work will be completed within a working time of 10 to several tens of minutes.

<Examples> The present invention will be specifically described below based on illustrated examples. Reference numeral 1 denotes a lighting device which is an example of an object to which the present invention is applied, and includes, for example, a retractable column configured in a multi-stage manner, and an illumination lamp provided at the upper part of the column. This device is suitable for use, for example, by installing it in the shade of shrubbery on the side of a golf course or the like. When not in use, the illumination lights at the top are lowered and hidden between the trees to maintain the scenery so as not to obstruct the eyes of players, and when in use, they are extended and used to project light onto the course from above the trees. This lighting device 1 will be explained below. This device includes a base support 2, a three-stage movable support 3 stored in the base support 2, an illumination light 4 attached to the topmost movable support, and a base support 2. A drive source unit 5 for supplying power to the illumination lamp 4 and for driving the movable column 3 to extend and retract is provided. In addition, the movable support 3 is
In this embodiment, as an example, it is configured in three stages, and when displaying these separately from the bottom stage, 3I, 3■,
Display as 3■. These are sequentially stored in the base support 2 and are configured to be able to be raised and lowered, and are pulled up by a winch device as appropriate. In this embodiment, both the base support 2 and the movable support 3 have a truss structure having a triangular cross section. Of course, this cross-sectional shape may be a so-called square shape or a cylindrical shape. Moreover, it is not necessarily necessary to have a truss structure. The structure of the base of the lighting device 1 to which the present invention is applied will be explained in detail below. First, the base support 2 is fixed, for example, in a base case 10 having a height approximately in the middle thereof, and the base support 2 and the base case 10 are the main members of the base structure. First, basic box 10
In the embodiment shown in FIGS. 1 to 6, the box is shaped like a rectangular box with a bottom and an open top. upper frame body 1
2 and a lower frame body 13 below, an intermediate frame member 14 provided between them, and an outer panel member 15 stretched on the outer surface thereof. A member for fixing the base strut 2 is formed on this basic box lO. First, the base fixing part 17 is made by using the lower frame material 3, and for example, three It is substantially constituted by a protrusion 18 provided at the base. As can be understood from this configuration, at the bottom of the basic box IO, the base support 2
The upper fixing part 19 is simply fixed in position and is not actively fixed with welding or bolts. In supporting the base support 2, the structure is such that its fixing position can be adjusted, and each top portion having a triangular cross section is retracted from the base support 2 to support it. The upper fixing part 19 will be described in more detail below. First, the upper frame material 12 of the basic box 1°
For example, three brackets 20 are provided on the upper surface, and the adjustment end side of the connecting bolt 21 is fixed thereto. Specifically, the connecting bolt 21 is passed through a bolt receiving hole 22 which is horizontally elongated and tightened with a nut 23. A bifurcated connection plate 24 is provided at the other end of the connection bolt 21, that is, on the side of the base support 2, so as to sandwich the bolt receiving plates 26 of the two base support supports, for example, using bolts, nuts, or rivets. As can be understood from the above explanation, the standing state of the base support 2 can be adjusted by adjusting the amount of retraction of the connection bolt 21, which is the main component of the upper fixing part 19. Can be done.

A basic embodiment of the present invention has the configuration described above, and the installation work is performed as follows. First, as shown in FIG. 6(a), after carrying in the necessary base materials to the locations to be installed, a vertical hole large enough to fit the foundation box 10 is excavated using the packet 3] of the backhoe 30. By the way, when the movable column 3 is extended to the maximum,
Although the height is about 20 to 30 m, the basic box 10 can be sufficiently accommodated by, for example, a height of 3 m and a side length of about 1 m. Therefore, excavation will be carried out at approximately this size. Of course, it is possible to dig a relatively large hole with a relatively large margin, or, depending on the condition of the ground, to drill a hole a little tighter and install the foundation box 10 as if it were press-fitted. Of course, if the pilot hole is excavated slowly, the surrounding surface will be backfilled with a small amount of soil. In addition, in the case of a foundation box of this size, in addition to using a special crane etc., the foundation box 10 is hoisted up in a sling state using the packet 31 of the bankhoe 30 used to excavate the pilot hole, and then the bottom of the excavated hole is lifted. It is also possible to push the packet 31 of the backhoe 30 into the hole. Therefore, if you are familiar with this installation process, it can be installed in about 10 to several tens of minutes. After doing this, as shown in FIG. 6(C), the base support 2 of the illumination light 4 is inserted into the basic case 10, and the base support 2 is attached to the basic case 10 by the upper fixing part 19. and fix it. Of course, the lower end of the base column 2 is fitted into the projection 18 forming the base fixing door 17 as a positioning member so as to be externally fitted into it. After doing this, the connecting bolt 21 is fixed by the connecting plate 24, the bolt receiver @26, and the pin 27, and the fixing position of the connecting bolt 21 is adjusted by tightening the nut 23, so that at least the base strut 2 Install it so that it is vertical. In other words, basic box 10
Even if the buried state of the base support 2 is not necessarily vertical,
can be installed exactly vertically. Note that the lighting device 1 of this embodiment can be transported with the base support 2, movable support 3, and lighting lamp 4 all unitized, so in reality, the installation of the base support 2 is required for the installation of the entire lighting device. This is the first installation work, and the installation of the lighting device 1 is completed after the base support 2 is fixed.

Still other embodiments can be taken based on this technical idea. First, the embodiment shown in FIG. 7 is a case in which the entire lighting device 1, including the lighting lamp 4, is buried below the ground surface when it is stored, and in this case, the lighting device 1 The basic case 10 is formed by integrally forming a pillar storage part 10A and a lighting lamp storage part 10B so as to be able to store the lighting lamp 4 in the above, and is further provided with a cover plate 10C. Shape like a single character from the front.

Still another embodiment is a case in which the upper part of the base support column 2 is configured in a so-called anchor shape, and is suitable for installing a large-scale tower-like structure etc. that is subject to a larger load. Therefore, this structure is suitable for cases where the dimensions of the basic box 10 itself are relatively large. That is, the base box 10 is open at the bottom, and the installation work involves inserting the taram shell 32 into the base box 10, removing the soil inside the base box 10, and then gradually installing the foundation as shown in FIG. A structure in which the box 10 is sunk is suitable. It is desirable that the base support 2 assembled here has a height that spans almost the entire height of the foundation case 10, as shown in FIG. 9, for example, and that concrete C is finally poured into the foundation case 10 and fixed. When such concrete C is poured, fixation is substantially achieved by this, so the upper and lower ends of the base support 2 do not need to be positioned with respect to the foundation box 10 side as described above. Of course, when the concrete C is not poured, appropriate positioning of the base support 2 and the foundation box 10 is required also on the upper and lower sides. Of course, the examples of pouring such concrete C are as follows.
This can also be applied to the embodiment shown in FIG. Furthermore, the base support 2 in this embodiment has a connecting flange 2A integrally located at a position that almost coincides with the upper surface of the foundation box 10. For example, when concrete C is poured, the connecting flange 2A is inserted from the upper surface of the base support 2A. Only the support member is exposed, and then the support member to be supported is fixed to the support member using the flange.

(Effects of the Invention) Since the present invention has the configuration described above, the basic box 1 is designed to shield the periphery of the hole excavated during construction.
0 acts to prevent the drilled pilot hole from collapsing, etc.
In addition, this is integrated with the base support 2 as it is, and acts as a part of a structural member of a tower-like structure, etc., so that it can be constructed more rationally. Furthermore, even if concrete C is poured, there may be no need to use concrete foundations using formwork around the foundation, and the construction efficiency is extremely high.

Furthermore, it is possible to carry out construction without using concrete C at all, and it is possible to carry out construction in an extremely short period of time and with almost no impact on the surroundings.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the installed state of a tower-like structure to which the foundation structure of the present invention is applied, Figure 2 is a front view of the same as above, Figure 3 is an exploded perspective view of the foundation structure, and Figure 4 is the same as above. FIG. 5 is a partially cutaway perspective view showing an enlarged view; FIG. 5 is a plan view of the same as above; FIG.
The figure is a perspective view showing an example in which the entire lighting device is buried underground, Figure 8 is a sectional view showing another method of installing the base box, and Figure 9 is a base support and foundation using the same method. It is a sectional view showing the structure with a box. 1; 2; A 3. 4; 5; 10; Lighting device base support; Connection flange 3■, 3■, 3■1 Movable support Lighting lamp drive source unit basic box 10A; Pillar storage section 10B; Lighting lamp storage section 10C; Cover plate 11? Column material 12; Upper frame material 13; Lower frame material 14; Intermediate frame material 15; Outer panel material 17; Base fixing part 18; Projection 19; Upper fixing part 20; Bracket 21; Connection bolt 22; Bolt receiving hole 23; Nut 24 Connection plate 26; Bolt receiving plate 27 Pin 30: Backhoe 31; Packet 32; Clamshell C; Concrete

Claims (5)

[Claims] (1) It consists of a foundation box that is buried underground to the entire height or a part of the height, and a base column that is erected in a stowed state inside the foundation box, and this base column is connected to the foundation box. , a foundation structure such as a tower-like structure, characterized in that it is substantially fixed at at least two points, the top and bottom. (2) The basic structure of a tower-shaped structure or the like according to claim 1, wherein the fixing position of either or both of the fixed parts of the basic box and the base support can be adjusted. (3) The foundation structure of a tower-like structure or the like according to claim 1 or 2, wherein the bottom of the foundation box is closed. (4) The foundation structure of a tower structure or the like according to claim 1 or 2, wherein the bottom of the foundation box is open. (5) The foundation structure of a tower-shaped structure or the like according to claim 1, 2, 3 or 4, wherein the inside of the foundation box is filled with concrete.