JPS5873627A - Waterproof structure of underground wall for building - Google Patents

Abstract

PURPOSE:To obtain waterproof structure for the outer wall under the ground and prevent dewfall on the outer wall by a method in which when constructing a basement in sloped ground where ground wate flows in the neighborhood, a corrugated slate, etc., is vertically buried on the outside of the outer wall, and a drain section is provided at the lower end part by closing the upper end of the vertical space formed. CONSTITUTION:When constructing a basement U in a sloped ground where ground water flows in the stratum about 2m from the ground surface GL, corrugated plates 2, e.g., corrugated slate, etc., are vertically set in parallel in such a way that their tops 2a are pressed and held on the outside of the outer wall 1 and the end parts of the adjacent currugated plates 2 are partly lapped. Then, a concrete part 4 to interrupt rain water is formed projectionally and integrally with the outside of the outer wall 1 in the upper end opening of a vertical air layer 3 formed between the corrugated plates 2 and the outer wall 1. Also, an underdrainage 5 consisting of a parforated pipe 5A under the ground in the lower end of the corrugated plates 2 and ballast 5B leveled on the periphery of the pipe 5A is formed.

Description

[Detailed description of the invention] A building with an underground floor is constructed on a slope where there is a continuous or almost continuous flow of water in the stratum approximately 2 m below the ground surface, or on ground with a low groundwater level. In such a case, the temperature difference between the inside and outside of the underground floor will cause a phenomenon of condensation, causing dew water to form on the floor. In addition, various items stored in the basement may become moldy, discolored, corroded, or if it is a residential space, not only will the livability deteriorate considerably, but also underground water will leak from the outside of the ship's pond. L is considered to be unexpectedly inserted.

Conventionally, as a countermeasure against such flooding and farming, a method has been adopted in which an inner gong is constructed of concrete blocks on the inner surface of the outer wall for constructing the basement floor, but in this case, The overall cost is extremely high due to the increase in construction man-hours and the need to build a ship that prevents Marugame sewage from entering into the inside of the building. There was a disadvantage that space, especially effective floor area, was reduced.

It is also conceivable to use a water pump or the like to provide forced drainage equipment outside the basement, but this would require enormous operating costs and would be practically impossible.

The present invention has been developed in view of the above-mentioned circumstances, and is capable of waterproofing and preventing condensation outside the basement without reducing the effective space on the basement floor, which is advantageous in terms of ease of construction and cost. 14
The purpose is to press so that it can be carried out.

The embodiments of the present invention will be described below in detail based on illustrative drawings. Figure 1 shows a dream...! An underground floor (approximately 2 m from the ground surface (G
Constructed with 9 concrete (with reinforcing bars or with steel frame, □ or with reinforced steel frame) 1] M
In a structure, the outer m ti that constitutes the underground floor (goods)
A plate-like member (as an example, a corrugated slate or a plastic corrugated plate, which has water permeability and durability and is corrugated in plan view) is placed on the outside of the t, as shown in Figs. With each top (2a) maintained in pressure contact with the outer surface of the underground outside 113 by the soil returned to the trench, a force λ is applied.
Horizontally adjacent corrugated plate members (21° 1), vertically oriented air layers (3) are formed over a height equivalent to the depth of the underground shell 113, and these air layers (31...
At the upper end corresponding to the opening to the ground surface (GI), a companion concrete member (4) that closes and blocks the inflow of rainwater etc. is integrally formed to protrude outside of the underground outside-111, and the plate-shaped corrugated There is a perforated pie □ in the ground at a level corresponding to the lower end of member (2).

The underdrain drainage section (5) is composed of a drop ω~ and a small amount of ballast ω→ around its outer periphery. In addition, the culvert drainage part til is a drainage groove (6
) is formed so that it flows naturally. There is no need to particularly seal the joints between the adjacent plate-like corrugated members (ri), and water that enters through the gaps between the joints will be rapidly drained due to the difference between the pressure inside the soil and the pressure inside the space (3). The water drains downward and the space (3) is never filled with water.

In summary, the waterproofing structure outside the basement of a building according to the present invention is suitable for constructing an underground floor of a building having an underground floor (property).
On the outside of 1), a plate-like member (2) having waterproof properties and durability and having a corrugated shape in a plan view is maintained with each top thereof pressed against the outer surface of the above-mentioned underground outside (1) by backfilling soil. It is better to erect an air layer (3) in a vertical position between this corrugated plate-like member and the underground/virtual illumination.
A member (4) is provided to close the opening to the ground surface at the upper end of these air layers (3). (I
The corrugated plate-like member (2) is constructed using the soil that will naturally be deposited in the outer excavation space of the underground floor structure later on. By erecting the bell so that the top is in pressure contact with the outer surface of the underground bell (1), it is possible to perform waterproofing against the underground mil+ and form a rounded air insulation layer to prevent condensation. Because of this, it is possible to implement waterproofing and condensation countermeasures with ease of construction, without the inconvenience of reducing the effective space on the basement floor, and moreover, in a very economical way, compared to the construction method of concrete block building inside the concrete block structure of Budji Jourai. In particular, J! 1 (compared to the case where an internal 11CWt body is formed by forming an air layer (3)... on the outside of 11), it effectively suppresses the generation of condensed water inside the basement floor, further improving livability, etc. I've come to the point where I can improve.

[Brief explanation of drawings]

The drawings illustrate the implementation of the underground/exterior waterproof structure of a building according to the present invention, and Fig. 1 is a schematic longitudinal cross-sectional view of the entire target building, and Fig. 2 and Fig. 4 are enlarged longitudinal cross-sections of the main parts. FIG. 3 is an enlarged cross-sectional view of the main part. fi+...Outside underground d, [21...Corrugated plate-like 816 material, +3...Air layer, (4)...
...opening/closing M member, (6j...... greeting water section, (
5A)...Eve, (5B)-...
...No (Russ, (LJ)... Basement floor. Shi. Agent Patent attorney Osamu Kitamura 1 @ Figure 2 Figure 3 Cause Figure 4

Claims (1)

[Claims] ■ Except for the construction of underground floors of buildings with underground floors (goods) - (
On the outside of the IJ, a plate-like member (11) having water-blocking properties and durability, and having a corrugated shape in plan view, is provided so that each top thereof is kept in pressure contact with the outer surface of the underground outer ship +13 by the return soil. When installed vertically, an air layer (3J1
14k and closes the opening to the ground surface at the upper end of these air layers (31).
An underground outer wax waterproof structure for a building, characterized in that it comprises a drainage section (61). Claims: ■ The corrugated plate-like member (2) is a corrugated sheet, plate or plastic corrugated. - Waterproof structure for the underground and exterior of the building according to Claim 1, wherein the drainage section (61 is composed of a perforated pipe (5 cores and a mechanical ballast (5B) at its outer station). An underground/outside waterproof structure for a building as set forth in claim 0. (2) An underground/outside waterproof structure for a building set forth in claim 0, wherein the target building is constructed on a slope.