JPS59170329A - Construction of underground depository - Google Patents

Abstract

PURPOSE:To obtain a completely water-proof basement by a method in which a synthetic rubber bag formed by a high-frequency bonding method is inserted into an excavated hole, wooden or steel bottom plate is placed on the bottom of the bag, steel side walls are erected on the bottom plate, and a steel or wood cover plate with a manhole is placed on the side walls. CONSTITUTION:Loosened portions 2 are formed in the upper peripheral edge corners of a synthetic rubber bag 1 formed into a box shape by a high-frequency bonding method in a factory, fitting clothes 3 are bonded at given intervals to the upper peripheral edge sides of the bag 1. The bag 1 is inserted into an excavated hole of the same volume as the bag 1, a steel or wood bottom plate 4 is placed on the inside bottom of the bag 1, side walls of steel frames 5 are placed on the bottom plate 4, and a steel or wood cover plate 8 is placed on the side walls and a manhole 7 is drilled in the cover plate 8. The surrounding area of the excavated hole is refilled with soil. A basement of a completely water- proofing effect can thus be constructed at low cost in a short period with good efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of constructing an underground storeroom using synthetic rubber bags made by high frequency welding.

The present inventor previously invented a method for constructing an underground storeroom using plastic bags, and was issued a patent No. 931,059 (Japanese Patent Publication No. 53-8139).
No.) was obtained. In the invention of this patent No. 931.059, slack portions 2 are formed at the upper peripheral corners of a box-shaped plastic bag 1 made in advance at a factory, and waist-raising cloths 3, 3 and 3 are formed at arbitrary equal intervals.
... and hang it up, insert it into the hole drilled in the trench, insert the concrete bottom plate 4 into the inner bottom, completely laminate the concrete panels 5, 5 on the inner peripheral wall, and insert the hole 6 above. Perforated lid plate 7
This is an underground storage construction method using plastic bags, which is characterized by covering it with plastic bags, backfilling the excavated hole, and constructing it underground.

However, plastic bags are primarily elastic, flexible,
It has been found that there are problems with elasticity, durability, workability, etc. Plastic bags do not have sufficient elasticity and often end up with holes or tears when stretched. It is also not flexible enough, and although it can be bent, it lacks elasticity. Furthermore, the durability is insufficient, and parts exposed to sunlight are particularly problematic. Furthermore, vinyl is insufficient in processability.

In the previous patent No. 931,059, a plastic bag was created by pasting the bag using an adhesive, etc. However, in the manufacturing method using adhesive, after the solvent in the adhesive evaporated, the adhesive was removed. Fine pores remain in the agent layer. Therefore, there is no problem immediately after constructing an underground storage, but after a long period of time, groundwater begins to seep into the underground storage. This is thought to be caused by pores created after the solvent volatilized.

In order to solve the first various problems mentioned above, as a result of intensive research, it became clear that the problems could be solved by using synthetic rubber bags made by high frequency welding instead of plastic bags. This led to the present invention.

Second, since the concrete bottom plate and concrete panel are made of concrete, they need to be fairly thick to provide sufficient strength. Therefore, it is heavy and inconvenient to carry, and construction of an underground storeroom requires labor. Furthermore, concrete has the disadvantage that it easily attracts moisture, which makes the inside of an underground storage room more likely to become damp.

In order to solve this second problem, as a result of extensive research, it became clear that this problem could be easily and easily solved by using a steel frame and iron or wooden boards instead of concrete. This has led to the present invention.

The synthetic rubber bag made by high frequency welding used to solve the first problem has the following advantages over plastic bags. In other words, they are stretchy and less likely to get punctured or torn during construction than plastic bags. It also has flexibility and elasticity, making it easier to construct a storage space than a plastic bag. Furthermore, it has good durability, especially in areas that may be exposed to sunlight, which is superior to vinyl. Also, since it was created by high frequency welding, there are no holes on the welded surface, completely eliminating leakage of underground water. High frequency welding of vinyl has poor workability, and high frequency welding of vinyl is not suitable for constructing underground storage facilities.

The iron frame and iron or wooden bottom plate or iron or wooden board used to solve the second problem have the following advantages over concrete. In other words, iron or wood plates are thin and have sufficient strength. Therefore, it is convenient to carry.
The shed construction work becomes easy and simple. Furthermore, the iron plate does not attract moisture, and the wooden plate absorbs or releases moisture, so the underground storage room will not become damp.

The present invention will be explained below with reference to the drawings. In the present invention, a synthetic rubber bag 1 is made in advance into a box shape by high frequency welding at a factory, and slack parts 2 are formed at the upper peripheral corners of the bag, and the slack parts 2 are pasted at arbitrary equal intervals with waist-raising cloths 3, 3, etc. This is suspended and inserted into a hole drilled to approximately the same volume, an iron or wooden board 4 is inserted into the inner bottom, an iron frame 5 is provided on the inner periphery, and a steel frame 5 is placed between the iron frames 5. It is characterized by inserting iron or wooden boards 6, 6, etc., covering the lid plate 8 with the entrance hole 7 in the upper part, and backfilling the excavated hole to construct it in a buried state. be. 9 is on the ground.

The synthetic rubber bag 1 is made in advance into a box shape by high frequency welding in accordance with required standards at a factory. A hole slightly larger than the volume of the synthetic rubber bag is dug in the soil in the place where the basement of the building is to be constructed, the synthetic rubber bag is first inserted and held in the hole, and an iron or wooden bottom plate is inserted inside. Put it in the bottom and spread it out.
Next, iron plates 5 are placed at arbitrary regular intervals along the inner wall of the synthetic rubber bag, and iron or wooden boards 66 are inserted between the iron frames 5 to form the wall surface, thereby forming a box body. When the outer periphery of the synthetic rubber bag is pressed down with sand or backfill, etc., even if the sheet surface of the synthetic rubber bag is pulled down together with the pressure and subsidence of the soil,
Each of the waist raising cloths 3, 3 is cut in the middle, and the slack part 2 of the seat surface becomes loose and relieves the tension, thereby preventing the seat surface from being cut. Therefore, there is no need to place a worker outside the bag during construction, and there is no need to drill an extra hole with the same volume as the bag. And after constructing the underground storeroom, there is no infiltration of groundwater.

According to the method of the present invention, the synthetic rubber bag can be made in advance in a factory to obtain a completely reliable water-blocking effect, the holes to be drilled can be small, and the sheet can be easily cut after being re-drilled. This has the effect that a completely waterproof basement can be constructed efficiently and inexpensively in a short period of time. In particular, the present invention utilizes a synthetic rubber bag that is pre-formed into a box shape at a factory by high-frequency welding, so it has superior elasticity, flexibility, elasticity, durability, and workability compared to plastic bags. Since it is an underground storage construction method, it is easier to use the basement.Since it uses plates 6, 6, etc., it is convenient to carry, making work easy and simple, and furthermore, the underground storage is less damp. Not at all. This way f
It is easy to use a basement, and it is possible to install a basement in a ready-made building, so it has a wide range of uses.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention. 1...Synthetic rubber bag 2...Sag part 3.3...
・Waist raising part 4... Iron or wooden bottom plate 5... Iron frame 6, 6... Iron or wooden board 7... Entrance hole 8... Cover plate 9... Above ground

Claims (1)

[Claims] Slack portions 2 are formed at the upper peripheral corners of a synthetic rubber bag 1 which is made in advance into a box shape at a factory using high-frequency welding traps, and waist-raising cloths 3, 3, etc. are formed at arbitrary equal intervals. Attachment +11- Hang it, insert it into a trench fire, insert an iron or wooden bottom plate 4 into the inner bottom, install an iron frame 5 on the inner peripheral wall, and insert iron or wooden boards between the iron frames 5. Insert 6, 6... into the upper hole 7
This method of constructing an underground storage shed is characterized by covering the cover plate 8 which has been drilled with a hole, and backfilling the hole to make it buried.