JPH02101214A - Vertically split chamber structure in embankment dam - Google Patents

Abstract

PURPOSE:To obtain an embankment dam that can be built on a soft ground at low cost by dividing the inside of the embankment by a waterproof partition wall parallel to a front water barrier wall, and by reinforcing the space between each partition wall by a horizontal beam. CONSTITUTION:A pile 21 is struck for formation parallel to a front water barrier wall 2, and the inside of an embankment is divided by a waterproof partition wall 10 framed with a waterproof steel plate 30. The place between each waterproof partition wall 10 is reinforced by a horizontal beam 12, to form a divided partition wall waterproof chamber 11. On the bottom thereof, an underground front water barrier wall 3, an underground water barrier wall 6, and an auxiliary dam 7 are constructed. An embankment can thus be built on a soft ground at low cost.

Description

Detailed Description of the Invention (Objective of the Invention) Structures such as seawater and freshwater embankments and dams for artificial lakes have almost the same structure (hereinafter referred to as embankment dams), It is a waterproof structure that can be built on soft ground and can withstand the shock wave pressure of typhoons and the water pressure of high dams, especially in the ocean and on the coast.

The interior of the embankment dam structure has a waterproof chamber structure with multiple partition walls, and since the difference in water pressure between adjacent rooms of the divided chambers is small, the front water pressure is a counter-water pressure structure and is stable against leakage water.

(Structure of the invention) When constructing a waterproof room with divided partition walls, in the case of a concrete structure, the steel plate formwork is the same as the lining that also serves as a waterproof structure, and Styrofoam is placed in a waterproof sheet bag, etc., and water etc. This is a filling method, in which the formwork and filling materials are all buried and used as is.

In order to maintain the supporting force and prevent slipping, the sleeve pile method (Japanese Patent Laid-Open No. 49-102129
Underwater structure installation method), the pipes are temporarily constructed, a supporting pile is inserted and driven into the sleeve pipe, and the gap between the pipes is fixed with a bonding material (mortar or other). The shape, together with the pile, helps prevent slipping.

(Effects of the invention) The foundation ground of the structure can be constructed and installed even on soft and poor ground, and the number of divisions and type can be adjusted depending on the installation site conditions. "Structure that can withstand deep water pressure and earthquakes."

It is advantageous for both general dams and rock-fill dams in particular, where the construction site is small and the aggregate size is small. Partial leakage of water is extremely small, and the artificial island in the rough sea (the inside is a non-rational system that makes effective use of the empty space) and the special structure is water pressure resistant.

For the construction of the divided chambers [separate materials are used and the formwork and waterproof container are buried, and the construction is simple and the construction cost and construction period are greatly reduced. Available for use.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a vertically divided bulkhead structure in an embankment dam, and a cross-sectional view of a standard vertically divided bulkhead waterproof chamber in an embankment dam. Figure 2: Reduced view and cross-sectional view of the vertically divided bulkhead structure in the embankment dam. 20 at the rear of the 22 impermeable wall is a small divided bulkhead waterproof room with a rationally scaled structure; the others are the same as Figure 1. Figure 3: Vertical dividing bulkhead structure diagram and cross-sectional view within a super-large circular embankment dam. The embankment dam structure for a super-large artificial island. The artificial island has a circular (partial arch) hydraulic structure, and the bottom length of the embankment dam is Significantly reduced cross-sectional view, Figure 4, Internal view of the underground front impermeable wall, cross-sectional view, 23 turbo motors and 24 rotary cutters, surface excavation earth and sand are transported to the outside with 25 discharge pumps and 28 pipes. Drain and use the sleeve pile hole. (code), 1-dam levee top, 2-front impermeable wall, 3-underground front impermeable wall,
4- Sloped surface water tap, 5- Lower water tap, 6 Underground rear impermeable wall, 7
- Subdam, 8 - Drainage ditch, 9 - Seam leakage water reservoir, 10 - Divided waterproof bulkhead, 11 Divided bulkhead waterproof chamber, 12 - Horizontal reinforcing beam, 13 - Anti-slip notch, 14 - Sleeve vibe,
15- Grafting, 16- Penetration water collection vibe, 17-
Suction water pump, 18-Seawater and freshwater, etc., 19-Seawater and freshwater low, 2o-Reduced divided waterproof room partition, 21-Pile, 22-
Equipment mounting mole rail, 23-turbo motor, 24-one-rotation cutter, 25-earth discharge pump, 26-TV monitor, 27-power (pneumatic, hydraulic, electric, mechanical interlock, etc.), 28-discharge vibrator, etc.), 29- Moving (ceiling and other) trolley, 3°-pasted waterproof steel plate (buried as formwork). That’s all for now.

Claims (1)

[Claims] For seawater and freshwater embankments, dams and other structures such as artificial lakes, the interior of the structures such as embankments and dams is divided into vertically divided bulkhead waterproof chambers parallel to the front waterproof surface. A structure constructed using materials, etc. The partition walls of the divided waterproof room are made of concrete, and the waterproof room is filled with water and other materials in bags made of waterproof material, and the formwork made of steel plates is also used as a waterproof container, so there is no need to remove it as it can be filled in.