Step dam device that can be repaired in short time even if missile is blocked or destroyed

Abstract

To be able to intercept missiles and, even if destroyed, to be able to repair in a short time.SOLUTION: In this invention, foundation piles are installed at intervals of 10 m or less on both slopes of a valley on both opposite banks at a dam installation site and at least 200 m downstream from the dam installation site. Angle structures are installed between the foundation piles on both slopes of the valley. A crane rail is placed under the angle structures at the dam installation site. In addition, a covering angle structure for the dam is constructed, with an angle structure placed at a height of not less than 10 m from the riverbed under the angle structures at least 200 m downstream from the dam installation site. A stepped dam with a stepped surface is constructed by constructing the angle structures.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] This invention relates to a step dam device that can be repaired in a short time even if a missile is intercepted or destroyed. [Background technology]

[0002] Conventional dams are unable to stop missiles, and once destroyed, it takes a considerable amount of time to repair them. Summary of the Invention [Problem to be solved by the invention]

[0003] Therefore, the object of this invention is to make it possible to intercept missiles and, even if it is destroyed, to repair it in a short period of time. [Means for solving the problem]

[0004] In order to solve the above problems, the present invention provides a method for constructing a dam at a dam installation site and at least 200 m downstream from the dam installation site. A flat area of ​​the same height is created on the upper parts of both opposite banks, and foundation piles 1 are installed on the flat area at intervals of about 10m. One-layer angle structures 2 and 3 with vertical supports are installed on top of the foundation piles 1. A single-layer angle structure 2 and 3 with the same angle structure as the single-layer angle structure 2 and 3 is then installed to cover the top of the single-layer angle structure 2 and 3. The spacing and installation positions of the single-layer angle structures 2 and 3 are determined so that three or more stories of angle structures 4 supporting both banks can be installed, and the position of the foundation piles 1 is also set to match the vertical supports. Dam installation location Support on both sides of three or more layers Angle Structure 4 At the bottom of the crane rail 5 Also, Angle structures 6, not less than 10m high from the riverbed, are installed at the bottom of the downstream section, more than 200m downstream from the dam installation site. The dam covering angle structures are installed, and are attached to angle structures 4 supporting both banks, which are three or more stories high. Crane rail 5 and Angle Structure 6 A stepped dam 5 is installed so that the surface of the dam constructed by using the above is formed in a stepped shape. Effect of the Invention

[0005] The step dam of this invention is a step dam between the installation site of the step dam 7 and a downstream area of ​​200 m or more therefrom. 7 Installation top 2. Three or more layers of support on both sides Angle Structure 4 This makes it a stepped dam. 7 of shield And so, For step dam 7, It will be possible to intercept missiles.

[0006] The step dam of this invention is: Since the three or more layered double bank supporting angle structure 4 that acts as a shield has three or more layers, even if one layer is destroyed, the strength of the second layer is maintained, and even if there is a missile penetration destruction, the overall strength of the three or more layered double bank supporting angle structure 4 excluding the penetration destruction part makes it possible to prevent the overall deformation of the three or more layered double bank supporting angle structure 4.

[0007] The step dam of this invention is: Even if a missile penetrates and destroys the three or more layers of the two-bank support angle structure 4, it is possible to prevent the entire structure from being deformed, so that the crane rail 5 and the angle structure 6 can be repaired without deformation and can be used for a short period of time. It becomes possible.

[0008] The step dam of this invention is: Even if the dam is penetrated and destroyed by a missile, it can be used for a short time. Since the surface of the stepped dam 7 is stepped, a horizontal surface exists, so that repair equipment can be brought into the dam body using the crane rail 5, and repairs can be made in a short time. It becomes possible. [Brief description of the drawings]

[0009] [Figure 1] The right side is a plan view of the step dam device of the present invention, with the upstream part of the river, the foundation piles 1 shown with partial cut-off line holes in all four directions, and the step dam 7 shown with cut-off line holes around the step dam 7. [Diagram 2] This is an elevation view of the step dam device of the present invention seen from the downstream direction, showing only the part of the foundation pile 1 and the mountain cross section without the cross-sectional oblique line. [Diagram 3] A cross-sectional view of the step dam device of the present invention, with the right side cut in the direction of the river at the upstream and center positions of the river. [Figure 4] The right side is a plan view of the step dam device of this invention, with the single-layer angle structures 2 and 3 shown in the figure, and the step dam 7 shown, with the angle structures 4 and 6 supporting both banks of three or more layers removed, with the foundation piles 1 shown in the broken line holes in the upstream part of the river and the corner area. [Diagram 5] FIG. 1 is an elevation view of the step dam device of the present invention viewed from the downstream side, showing only the foundation pile 1 portion with the angle structure 6 removed, and showing the mountain cross section without the cross-sectional oblique lines. [Figure 6] A cross-sectional view of the step dam device of the present invention, with the angle structure 6 removed, cut in the river direction at the upstream / center position of the river on the right side. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The stepped dam of this invention is a type that can be repaired in a short time even if it is destroyed by a missile. The dam installation site and the dam installation site between the dam installation site and the downstream area of ​​200m or more from there are On the upper part of both banks, flat areas of the same height are constructed. 10m About Foundation piles 1 are installed at intervals, and on top of these foundation piles A single-layer angle structure 2·3 with a vertical support is installed, and a single-layer angle structure 2·3 with the same angle structure as the single-layer angle structure 2·3 is installed on top of the single-layer angle structure 2·3. The spacing and installation positions of the single-layer angle structures 2·3 are determined so that three or more layers of both-bank supporting angle structures 4 can be installed, and the position of the foundation piles 1 associated with the single-layer angle structure 2·3 is also set to a position where the vertical support columns are aligned, and the three or more layers of both-bank supporting structures at the dam installation site are determined. Crane rail at bottom of angle structure 4 5 Also,Angle structures 6, which are no less than 10m high from the riverbed at the bottom of the downstream section, are installed at least 200m downstream from the dam installation site, and a crane rail 5 and angle structures 6 are attached to angle structures 4 supporting both banks, which are three or more stories high. The surface of the dam constructed by using this method is formed in a stepped shape to form a stepped dam 7. [Explanation of symbols]

[0011] 1...foundation pile, 2... Single-layer angle structure , 3… Single-layer angle structure , 4...Three or more layers of angle structure supporting both banks, 5...Crane rail, 6...Angle structure, 7...Step dam

Claims

1. Foundation piles 1 are installed at intervals of 10m or less on the valley slope above the dam installation site and at a location 200m or more downstream from the dam installation site, and the installation direction of the foundation piles 1 is such that a force that causes the foundation piles 1 to pull out is not generated when a downward force or a horizontal downstream force is applied. Intermediate-pillar-free angle structures 2 connected to the foundation piles 1 are installed between the foundation piles 1 on both sides of the valley slope, a crane rail 3 is placed below the intermediate-pillar-free angle structure 2 at the dam installation site, and an angle structure 4 that is no less than 10m high from the riverbed is placed at the bottom of the downstream section 200m or more from there. This is a dam-hoko intermediate-pillar-free angle structure device.

2. A stepped dam constructed using a crane rail 3 of the dam intermediate no-support angle structure device of claim 1 and an angle structure 4 at a height of not less than 10 m from the river bottom at a downstream portion of not less than 200 m from the crane rail 3.

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