JP2001241052A - Waterproof construction method for basement and waterproof structure of basement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof construction method for a basement and the waterproof structure of the basement, by which the infiltration of moisture from an underground section to the basement can be prevented particularly. SOLUTION: A water sealing material 4 is interposed among the lower frame A of a caisson C and both internal and external panels 3, 7 erected at a proper interval on the inside and the outside on the lower frame A, and the infiltration of water into the caisson C from soil through a section between the external panel 7 and the lower frame A is prevented while the infiltration of water into the basement from the inside of the caisson C through a section between the internal panel 3 and the lower frame A is prevented. The water sealing material 4 is interposed between the caisson C and basement base concrete 108, and infiltration into the basement of water in a ground through a section between the caisson C and basement base concrete 108 is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproofing method for a basement and a waterproofing structure for a basement, and more particularly to a waterproofing method for a basement and a waterproofing structure for a basement capable of preventing infiltration of moisture into the basement.

[0002]

2. Description of the Related Art As a conventional basement method (hereinafter referred to as a conventional method), a hole deeper and wider than a basement is excavated.
A method has been adopted in which a reinforced concrete basement is created in this excavation hole, and the surrounding area is backfilled with earth and sand.

[0003] In digging a digging hole, in order to ensure the safety of work in the digging hole, for example, a steel sheet pile is erected around the digging hole and, if necessary, a soil is used by raising the stomach and supporting. Fastening work is performed.

[0004] Also, in order to build a basement in a borehole,
Underground construction work to form the basement basement for the basement, that is, leveling the bottom of the excavation hole, laying sand, laying cracked stone, and then, if necessary, throwing away concrete.

[0005] After this ground work, the basement foundation reinforcing steel is arranged on the basement foundation floor, and then the basement foundation concrete is poured and hardened to complete the basement foundation.
When the basement foundation construction is completed, the inner formwork and the outer formwork of the wall are assembled on the basement foundation concrete, and the wall reinforcement is arranged in the formwork, and then the wall concrete is poured and hardened.

After the wall concrete has hardened, the formwork is dismantled, removed, backfilled with excavation holes around the wall concrete, and thereafter, simultaneously with the foundation work of the above-ground building, or simultaneously with the above-mentioned ground building. After foundation work, basement ceiling work and interior work are performed.

This conventional construction method has a relatively long construction period, is unstable, and requires several times the construction cost of a building above ground. Therefore, it is rare to construct a basement in an ordinary household.

Therefore, in order to spread the basement to ordinary households, as a method of constructing the basement in a shorter time and at a lower cost than the conventional construction method, a hollow figure in plan view is disposed as a disposal type on the ground for the basement construction. Assemble the lower frame, raise the inner panel and outer panel at a predetermined interval inside and outside as a discarded type on this lower frame, and arrange the wall reinforcement between the inner and outer panels, and then between the inner and outer panels. Casting and hardening wall concrete to form a hollow caisson in plan view, excavating earth and sand on the bottom of the caisson and sinking the caisson to a predetermined depth, and then drilling the excavation hole Excavation to the depth of the ground, leveling the bottom of the foundation, forming the foundation bottom, then casting the foundation concrete to form the basement foundation, and lowering the caisson on this basement foundation It is.

For example, Japanese Unexamined Patent Publication No. Hei 10-82061 describes a basement submersion method in which caisson formation and caisson subsidence are advanced in a stepwise manner. Assemble a lower frame having a flange on the outer periphery on the ground for construction, and as a discard type on this lower frame, raise the lowermost inner panel and outer panel at predetermined intervals inside and outside, and then raise the inner and outer Reinforcement under the caisson is laid between both panels, and then wall concrete is cast between the inner and outer panels and hardened to form the lower caisson. After adding the inner and outer panels of the caisson, excavate the soil at the bottom of the caisson and sink the lower part of the caisson.

The excavation hole is deeply excavated in stages, and the caisson is held at a position higher than the bottom surface of the excavation hole of the previous stage by a jack or the like while excavating the earth and sand, and gradually sinks as the earth and sand is dug down one step. I try to make it.

When the caisson is lowered to the seam between the inner and outer panels at the lowermost stage and the inner and outer panels at the second stage from the bottom, the inner and outer panels at the upper stage are further extended to the uppermost stage, and then the reinforcing bar at the upper part of the caisson is removed. The caisson as a whole is completed by arranging the bars and continuing the concrete, and then the earth and sand at the bottom of the caisson are further excavated to sink the entire caisson.

In this known basement submersion method, after a caisson is sunk to a predetermined depth, an excavation hole is excavated to the depth of the basement base floor, the bottom surface of the excavation hole is leveled, and sand is scattered.
After laying the cracked stones, a ground work was done to throw the dumping concrete.Furthermore, reinforcing bars were laid on the basement base of the basement formed by this land work, and then the basement foundation concrete was poured and hardened. After forming the basement, the caisson is lowered on the basement.

The inventor of the present invention intends to shorten the construction period and reduce the construction cost more than the known basement submersion method.
After forming the entire caisson on the ground for basement construction, invented a new basement submerging method that excavates the ground inside the caisson and sinks the caisson while excavating the periphery of the excavation hole with the caisson using the weight of the caisson And has already filed a patent application. However, this new basement submersion method is still undisclosed.

In this new undisclosed basement submersion method, the caisson is lowered to the basement base, the bottom surface of the excavation hole inside the caisson is leveled, sand is scattered, and the quarry stone is spread and then discarded. Groundwork to beat concrete was performed, and furthermore, reinforcing bars were laid on the basement base of the basement formed by this groundwork, and then basement foundation concrete was cast.
Let it cure. A detailed description of this new and unknown basement submersible box construction method will be described later in detail in an embodiment of the present invention, and will not be described here.

[0015]

By the way, in the conventional construction method, a crack is formed on the joint surface between the wall concrete and the basement concrete, and there is a possibility that moisture in the ground may enter the basement through the crack. In the known basement submersion method, a crack is formed between the caisson and the basement concrete, and groundwater infiltrates into the basement through the crack, or between the inner and outer panels and the wall concrete. There is a possibility that a gap may be formed between the lower frame and the wall concrete, and groundwater or moisture in the caisson may enter the basement through the gap.

[0016] Even in the above-mentioned new and unknown basement submersion method, a crack is formed between the caisson and the basement concrete, and groundwater penetrates into the basement through the crack, or both the inner and outer panels and the wall concrete are separated. And between the lower frame and the wall concrete, there is a possibility that groundwater may enter the basement through the gap.

In view of such circumstances, the present invention solves the technical problems associated with the prior art including the conventional construction method and the known basement submersion method and the new unknown basement submersion method, and It is an object of the present invention to provide a basement waterproofing method and a basement waterproofing structure capable of preventing intrusion of moisture.

That is, the first basement waterproofing method according to the present invention (hereinafter referred to as the first invention method) and the first basement waterproofing structure according to the present invention (hereinafter referred to as the first invention structure). It is an object of the present invention to prevent the moisture in the soil from entering the caisson through the space between the caisson forms used for the basement submersion method, and to prevent the moisture in the caisson from entering the basement.

Also, the second basement waterproofing method according to the present invention (hereinafter referred to as the second invention method) and the second basement waterproofing structure according to the present invention (hereinafter referred to as the second invention structure). It is an object of the present invention to prevent underground moisture from penetrating into a basement room through a space between a caisson constituting a basement body and a basement foundation concrete.

Further, the third basement waterproofing method according to the present invention (hereinafter referred to as the third method of the present invention) and the third basement waterproofing structure according to the present invention (hereinafter referred to as the third structure of the present invention). Is to prevent the underground moisture from entering the caisson through the caisson formwork used in the basement submersion method, and to prevent the moisture in the caisson from entering the basement, and the caisson and basement It is an object of the present invention to prevent underground moisture from penetrating into a basement room through a space between foundation concrete.

[0021]

According to the first aspect of the present invention, there is provided a lower frame of a hollow figure in a plan view, inner and outer panels which are raised on the lower frame at predetermined intervals inside and outside, and a space between the inner and outer panels. A method of waterproofing a basement using a caisson that constitutes an outer peripheral wall frame of a basement that is made of reinforced concrete wall concrete and that is installed at a predetermined depth on the basement basement of the basement underground. To achieve
Before erecting the inner panel or the outer panel on the lower frame, a sealing material is inserted between the lower frame and the inner panel or the outer panel, and a technical means is adopted. It was done.

According to this method, the first invention structure described later is formed, and is formed between the lower frame and the inner panel, between the lower frame and the outer panel, or between the lower frame and the inner panel and between the lower frame and the inner panel. Since the space between the frame and the outer panel is sealed in a water-tight manner by the sealing material, it is possible to prevent moisture from entering the caisson from the inside of the caisson, or from entering the caisson from the ground. This prevents the intrusion of moisture into the caisson from underground, and also prevents the infiltration of moisture from inside the caisson into the basement.

That is, in the first method of the present invention, when a sealing material is inserted only between the lower frame and the inner panel, the sealing material is sealed between the lower frame and the inner panel in a watertight manner. As it is stopped, it penetrates into the caisson from underground, and then leaks from the caisson through the space between the lower frame and the inner panel and into the basement. Then, the water that is going to enter the basement from inside the caisson through the space between the lower frame and the inner panel is sealed to the wall concrete side of the inner panel by the sealing material.

In the first method of the present invention, when the sealing material is inserted only between the lower frame and the outer panel, the space between the lower frame and the outer panel is sealed with the sealing material in a watertight manner. Since the water is stopped, the water that is going to enter the caisson from underground through the space between the lower frame and the outer panel is sealed outside the outer panel by the sealing material.

Further, in the first method of the present invention, when a sealing material is inserted between the lower frame and the inner panel and between the lower frame and the outer panel, it is attempted to invade the basement from underground. Moisture that leaks out is sealed to the outside of the outer panel by the sealing material on the outer panel side, and moisture that oozes out of the wall concrete when the wall concrete hardens is transferred to the wall concrete side of the inner panel by the sealing material on the inner panel side. Sealed.

Hereinafter, the first invention method will be described in more detail in the order of the basement to which the first invention method is applied and the constituent features that characterize the first invention method.

First, as described above, the basement to which the first method of the present invention is applied includes a lower frame having a hollow figure in plan view and inner and outer walls which are set up on the lower frame at predetermined intervals inside and outside. The basement is composed of panels and reinforced concrete wall concrete formed between the inner and outer panels, and uses a caisson installed at a predetermined depth on the basement floor of the basement.

Of course, the basement includes a basement used for daily life such as a living room, an amusement room, a play room, a study, a storage room, and a basement used for emergency life such as a war including a nuclear war and a disaster. Underground tanks used for daily consumption and distribution of shelters, drinking water tanks, fire prevention tanks, oil tanks, chemical tanks, chemical tanks, etc., or storage of liquid materials in case of emergency,
Includes underground warehouses used for the daily consumption and distribution of weapons, ammunition, food, fuel, medicines, furniture, clothing, protective equipment, and other supplies in case of emergency.

The caisson may be entirely formed on the basement building ground before digging a caisson digging hole, but a part of the caisson may be formed on the basement building site before digging a caisson digging hole. After forming above and submerging a part of the hole in the excavation hole, the remaining portion may be formed, or may be formed in the excavation hole excavated to the basement base floor for submerging the caisson.

The method of forming the caisson is not particularly limited. For example, in accordance with the above-mentioned new and unknown basement submersion method, a hollow figure in a plan view on the ground for constructing a basement before excavating a digging hole for laying the caisson. After placing the lower frame, and installing the inner panel, outer panel and wall reinforcement on this lower frame, cast concrete between the inner and outer panels,
It may be formed by a method of curing.

Also, as in the known basement submersion method,
Place a lower frame of a hollow figure in a plan view on the basement construction ground before excavating the excavation hole for sinking the caisson,
Place the lowermost inner panel, outer panel and wall reinforcement on this lower frame, add the upper inner panel and outer panel, pour the lower wall concrete, and place the lower part of the caisson underground It may be formed by squatting, then arranging the upper wall reinforcement, and pouring the upper wall concrete.

Further, as in the conventional construction method, after a digging hole for laying a caisson is excavated to the basement base bottom, or after that, a basement base bottom is formed on the basement base bottom, and then the basement base bottom is formed. Place the lower frame of the hollow figure in plan view on the upper basement or the basement of the basement, install the inner panel, the outer panel and the wall reinforcing bar on this lower frame, then cast the wall concrete between the inner and outer panels and harden Alternatively, it may be formed by a method of causing the above.

The lower frame serves as a discarding mold for the bottom surface of the wall concrete. As a method of arranging the lower frame on the ground for constructing a basement, an integrated lower frame previously formed in a hollow figure in plan view is used. It is also possible to adopt a method of carrying the cellar to the basement building site and placing it on the basement building site.

However, it is possible to easily secure a carry-in route, and to make it possible to construct a basement on a narrow basement construction site that is slightly larger than the floor area of the basement.
In order for one or two workers to be able to bring them to the basement construction site without using heavy equipment, they are divided into several parts and formed. It is desirable to adopt a method of assembling on the ground and arranging it on the ground for basement construction.

The shape of the lower frame in plan view is not particularly limited as long as it is a hollow figure. For example, a hollow circle (annular shape), a hollow elliptical shape (elliptical ring shape), a hollow square, a hollow rectangular shape (rectangular shape) ), Hollow polygons such as hollow trapezoids, hollow rhombuses, hollow parallelograms, etc., hollow squares such as hollow triangles, hollow triangles, hollow pentagons, hollow hexagons, hollow octagons, etc. A pentagram, such as a pentagram, a hexagram,
Any hollow shape such as a hollow L-shape, a hollow cross shape, and a hollow cross shape can be adopted.

The cross-sectional shape of the lower frame is such that a bottom plate having a function as a weir plate for the bottom surface of the wall concrete is provided.
There is no particular limitation, and the sectional shape of the bottom plate is not particularly limited. That is, as the cross-sectional shape of the bottom plate, for example, a flat plate shape, a hat shape which is raised between the inner and outer panels, and the like can be adopted.

The lower frame may be provided with a flange continuous with the outer edge or the inner edge in addition to the bottom plate, and further, a flange (outer plate) extending downward at the outer edge of the bottom plate.
In the case of having a reinforcing plate, a reinforcing plate extending obliquely upward below the bottom plate is provided continuously to the lower edge of the flange (outer plate).
A cutting edge may be formed by the flange (outer plate) and the reinforcing plate, and the cutting edge may excavate the periphery of the excavation hole by the weight of the caisson.

The material of the lower frame is not particularly limited.
Metal such as steel, synthetic resin, wood, paper, etc. may be used,
Of course, two or more of these materials may be used in combination, such as using cardboard paper for the bottom plate and using wood as reinforcement for the bottom plate.

In the case where the lower frame is arranged on the basement floor of the excavation hole excavated by the conventional method, it is possible to cast the basement base concrete after forming the lower frame and then forming the basement base bottom. If the lower frame is to be placed on the basement base that was formed on the basement base by the conventional method, then the base reinforcement was laid in the lower frame and the basement concrete was cast. May be possible.

In the method of forming a caisson according to the first aspect of the present invention, the inner panel and the outer panel are set up on the lower frame at predetermined intervals inside and outside. There is no particular limitation on which of the panel member and the outer panel member is to be started first, and the inner panel member may be started first and the outer panel member may be started later, or vice versa. You may. Further, the inner panel and the outer panel may be alternately started in a stepwise manner, but from the viewpoint of improving workability, it is desirable to start the inner panel member first and start the outer panel member later.

Each of the inner and outer panels may be an integral unit having a cylindrical shape on the vertical axis. However, it is easy to secure a carry-in route, and it is a narrow basement construction site having a size slightly larger than the floor area of the basement. In order to enable the construction of the basement, and to allow one or two workers to bring it to the basement construction site without using heavy equipment, they are divided into several parts, and these parts are formed. It is desirable to adopt a method of sequentially assembling on the lower frame after carrying into the basement construction site.

As a method of dividing the inner and outer panels into several members, there are a method of dividing them in the height direction, a method of dividing them in the width direction, and a method of dividing them in the height direction and the width direction. Among these, the method of dividing in the width direction or the height direction and the width direction is preferable to enhance workability, rather than the method of dividing in the height direction. In order to be able to assemble both panels, it is particularly preferable to divide both the inner and outer panels only in the width direction.

The material of the inner panel, the outer panel, and the panel members constituting them are not particularly limited, and metals such as iron and steel, synthetic resins, wood,
Paper such as cardboard may be used. Further, two or more of these materials may be used in combination.

The method of fixing the outer panel, the inner panel, the outer panel, and the panel members constituting the outer panel and the panel member constituting the lower frame to the lower frame is not particularly limited.
Various methods such as bonding, welding, bolting with bolts and nuts, bolting with tapping bolts, riveting, nailing including stapling, suturing, etc. can be adopted, but the inner panel, In addition to fixing the outer panel or the panel members constituting these to the lower frame, the inner panel, the outer panel, or the sealing member can be easily inserted between the lower frame and the panel members constituting these. For this purpose, it is preferable to employ bolting with bolts and nuts and bolting with tapping bolts.

Similarly, the method of connecting the panel members of the inner panel and the method of connecting the spring members of the outer panel are the same.
Various methods such as welding, fusion, bonding, welding, bolting with bolts and nuts, bolting with tapping bolts, riveting, stapling, nailing, and suturing can be adopted, but with simple tools, In order to fix the inner panel, the outer panel, or the panel members constituting them to the lower frame at the time, and to easily insert the sealing material between the panel members, bolting with bolts and nuts It is preferable to employ bolting with a tapping bolt.

In the method of forming a caisson according to the first aspect of the present invention, a wall reinforcing bar is installed on the lower frame. The timing for arranging the wall reinforcing bar is not particularly limited, and the inner and outer panels are set up. You may arrange wall reinforcement before raising,
After the inner panel is set up, the outer panel may be set up after arranging the wall reinforcing bar. Conversely, after the outer panel is set up, the wall reinforcing bar is set up and then the inner panel is set up. You can raise it. Further, after the inner and outer panels are set up, a wall reinforcing bar may be arranged between the inner and outer panels. In addition, when the wall reinforcement is double-arranged inside and outside, after starting one of the inside and outside panels, one of the inside and outside reinforcement is assembled to that panel,
It is also possible to incorporate one of the inner and outer rebars between the inner and outer panels while gradually raising the other of the inner and outer panels.

In the method of forming a caisson according to the first aspect of the present invention, after both the inner and outer panels and the wall reinforcing bars are set on the lower frame, the wall concrete is cast in a conventional manner. The casting may be performed stepwise, as in the above-described known basement submersion method, and, as in the conventional method or the new unknown basement submersion method, the wall concrete of the entire caisson is cast at once. It may be.

By the way, the constituent feature which characterizes the first invention method is that a sealing material is provided between the lower frame and the inner panel or the outer panel before the inner panel or the outer panel is raised on the lower frame. In this case, the sealing material is inserted only between the lower frame and the inner panel, and the sealing material is inserted only between the lower frame and the outer panel. A case and a case where a sealing material is interposed between the lower frame and the inner panel and between the lower frame and the outer panel are included.

Here, before the inner panel or the outer panel is raised on the lower frame, the sealing material is inserted between the lower frame and the inner panel or the outer panel. When the sealing material is inserted only between the inner panel and the inner panel, regardless of the timing at which the outer panel is raised on the lower frame, the lower panel is placed before the inner panel is raised on the lower frame. This means that a sealing material is inserted between the inner panel and the inner panel. When the sealing material is inserted only between the lower frame and the outer panel, the inner panel is placed on the lower frame. Irrespective of the timing of raising, it means that a sealing material is inserted between the lower frame and the outer panel before the outer panel is raised on the lower frame, and further, the lower frame and both the inner and outer panels When the sealing material is inserted between the inner panel and the inner panel, lower the inner panel before raising it on the lower frame. Between the lower frame and the outer panel before the outer panel is raised on the lower frame on the outer panel side. It means to let it.

As a method for inserting a sealing material between the lower frame and the inner panel or the outer panel, a sealing material is disposed on the lower frame, and then the inner panel is placed on the sealing material. Alternatively, there is a method of setting up an outer panel, and this method includes attaching a sealing material to the upper surface of a lower frame or a member constituting the lower frame in advance at a factory and carrying it to a basement construction site, and There is a method of placing the sealing material on the lower frame, but in these methods, the sealing material may come into contact with other objects and be damaged or peeled between the factory and the installation of the lower frame. In order to prevent this, it is desirable to provide a sealing material immediately before the inner panel or the outer panel is started up on the lower frame assembled at the basement construction site.

In the method of disposing the sealing material on the lower frame at the construction site of the basement, the sealing material is placed on the lower frame as described later in order to prevent the sealing material from moving due to wind or the like. It is preferable to provide a sealed water sealing material.

Another method of inserting a sealing material between the lower frame and the inner panel or the outer panel is as follows: a sealing material is provided on the lower surface of the inner panel or the outer panel, and then the inner panel or the outer panel is provided. There is a method that can be started on the lower frame.

In the first method of the present invention, when the inner panel or the outer panel is raised on the lower frame by sequentially raising the plurality of panel members on the lower frame, between the panel members adjacent to each other. Water sealing material can be inserted.

When the outer panel is raised on the lower frame by sequentially raising a plurality of panel members on the lower frame,
When a sealing material is interposed between adjacent outer panel members, moisture in the ground is prevented from penetrating into the caisson from between the adjacent outer panel members, and a plurality of panel members are sequentially placed. When the inner panel is raised on the lower frame by raising it on the lower frame, if a sealing material is interposed between the inner panel members adjacent to each other, moisture in the caisson will be Intrusion into the basement from between the panel members is prevented.

As a method of interposing a sealing material between adjacent panel members, a panel member provided with a sealing material on an end face to be joined to the adjacent panel member in advance in a factory or the like is brought to a construction site. A method of sequentially setting up on the lower frame, and providing a sealing material at the edge of the panel member that was first set up at the construction site or the edge of the panel member to be set up from now on, and connecting the panel member to be set up from now on to the lower frame. There is a method of standing up, but the latter may be adopted in order to prevent the sealing material from coming into contact with other objects and being damaged or peeling off from the factory until the lower frame is installed. preferable.

The water sealing material used in the first invention method includes:
Although not particularly limited, an elastic tape-shaped or string-shaped soft seal that is easy to handle can be used.

As a material of the soft seal, an elastic natural resin such as natural rubber or a synthetic resin such as synthetic rubber may be used. In addition, the soft seal is made of natural or synthetic leather, natural or synthetic fiber, A woven fabric or a knitted fabric having a void may be used.

Among these materials, it is preferable to use a synthetic resin having elasticity which is inexpensive in cost, and it is more preferable to use a foamed synthetic resin having a large elastic modulus among the synthetic resins having elasticity.

The tape-shaped or string-shaped soft seal may be provided on the lower frame or the panel member by fusing, welding, vulcanization bonding, bonding using an adhesive, adhesion using an adhesive, soft sealing itself. Adhesion utilizing the adhesive force, nailing including stapling, riveting, screwing, suturing, etc. can be used, among them, among these, to stabilize the water sealing action of the soft seal, In addition, in order to avoid a decrease in the water sealing action of the soft seal, it is desirable to adopt a bonding or sticking method that does not need to change the cross-sectional shape of the soft seal.

As the water sealing material used in the first method of the present invention, a water-swellable seal made of a water-swellable synthetic resin which absorbs water and expands may be used, but it has problems in handling and cost. In consideration of the above, it is desirable to use a soft seal rather than a water-swellable seal. In addition, it is possible to use both a soft seal and a water-swellable seal as in the second method of the present invention described later. However, in consideration of handling and cost, it is necessary to hesitate.

The water-swellable seal is in the form of a cream or paste having tackiness, and can be provided on a lower frame or a panel member by simply applying it.

Next, the first structure of the present invention comprises a lower frame of a hollow figure in plan view, inner and outer panels which are raised on the lower frame at appropriate intervals inside and outside, and a space between the inner and outer panels. A waterproof structure for a basement, comprising a caisson comprising a reinforced concrete wall formed at a predetermined depth above the basement basement of the basement underground and comprising a caisson constituting an outer peripheral wall frame of the basement, in order to achieve the above object. A technical means is provided in which a water sealing material is provided between the lower frame and one or both of the inner and outer panels.

As a result, the space between the lower frame and the inner panel is sealed in a watertight manner by the sealing material, so that the water in the caisson is prevented from entering the basement, or the space between the lower frame and the outer panel is prevented. Is sealed in a water-tight manner by a sealing material to prevent moisture in the ground from entering the caisson, or a sealing material between the lower frame and the inner panel and between the lower frame and the outer panel. It is sealed in a watertight manner, so that the water in the ground is prevented from entering the caisson and the water in the caisson is prevented from entering the basement.

Hereinafter, the first invention structure will be described in more detail. In this detailed description, the basement to which the first invention structure is applied is the same as that of the basement which is the premise of the first invention method. Therefore, the description will be omitted to avoid redundant description.

A feature of the first invention structure is to provide the lower frame and a water sealing material inserted between one or both of the inner and outer panels. Is also duplicated with the detailed description of the constituent features that characterize the first method of the present invention, and will be omitted to avoid redundant description.

Next, according to the second invention method, a caisson having a hollow figure in a plan view constituting the outer peripheral wall frame of the basement is disposed at a predetermined depth on the basement floor of the basement underground. A waterproofing method for a basement in which a basement base is formed on the basement base in a caisson, and then basement base concrete is cast on the basement base and inside the caisson. To do
Before placing the basement foundation concrete, a technical measure is adopted in which a sealing material is provided on a portion of the inner peripheral surface of the caisson located at a height equal to or lower than the basement foundation concrete placement surface. .

As a result, the space between the inner peripheral surface of the caisson and the basement concrete is sealed in a watertight manner by the sealing material, and the moisture in the ground is transferred between the inner peripheral surface of the caisson and the basement concrete. It is prevented from passing into the basement.

Hereinafter, the second invention method will be described in more detail in the order of the basement to which the second invention method is applied and the constituent features that characterize the second invention method.

In the basement to which the method of the second aspect of the present invention is applied, a caisson having a hollow figure is arranged at a predetermined depth above the basement floor of the basement underground and has a hollow figure in a plan view, which constitutes the outer wall of the basement. Then, a basement base floor is formed on the basement base floor in the caisson, and then basement base concrete is cast on the basement base floor and inside the caisson.

Here, a detailed description of the configuration requirement that a hollow caisson is arranged at a predetermined depth above the basement basement floor of the basement to constitute the outer peripheral wall frame of the basement in a plan view will be described in the first book. Since it overlaps with the detailed description of the method of the invention, it is omitted to avoid repeated description.

In the method of the second invention, a caisson having a hollow figure in a plan view constituting the outer peripheral wall frame of the basement is arranged at a predetermined depth on the basement floor of the basement in the basement. After forming the basement base floor on the basement base floor, after the caisson is arranged at a predetermined depth on the basement basement floor of the basement, the basement base floor is formed, on which the basement base floor is formed After that, when the basement base floor is formed, the caisson is placed at a predetermined depth on the basement basement basement underground,
Furthermore, the case where the basement base bottom is formed on the basement base bottom, the case where the basement base bottom is formed, the basement base bottom is formed thereon, and then the caisson is arranged on this basement base bottom. , Is included.

In the second method of the present invention, the phrase “after forming the basement base floor on the basement floor in the caisson” means that the basement base floor is formed at least on the basement base bottom inside the outer contour of the caisson. Means that the basement base is formed inside the outer contour of the caisson and a predetermined range outside the outer contour of the caisson, and the inside of the outer contour of the caisson and the outer contour of the caisson are formed on this basement base. This does not exclude the case where the basement base floor is formed over a predetermined range outside of the basement.

That is, when the basement base is formed only inside the caisson, the basement base is formed over the entire basement base, and the inside of the outside contour of the caisson and the predetermined outside of the outside of the caisson are defined. When the basement base is formed over the range, the basement is formed over the entire basement base, and the caisson is placed on the basement, and the caisson is placed on the basement base. A method in which the base sole is formed only on the inside.

The method of forming the basement floor of the basement is not particularly limited. For example, sand may be squeezed and crushed, and cracked stone or concrete pieces may be spread on the sand and further squeezed. A well-known method of hitting a crushed stone on a cracked stone or concrete piece may be adopted.

In the second method of the present invention, the basement foundation concrete is further cast after this. In practice, after the underground construction work, the underground foundation reinforcement reinforcing the reinforcement of the basement foundation concrete is arranged. Basement foundation concrete is cast.

Next, the constituent feature of the second invention method is that, before casting the basement foundation concrete, the inner periphery of the caisson is sealed in a portion located at a height below the basement foundation concrete placement surface. It is to provide water material.

After a sealing material is applied to a portion of the inner peripheral surface of the caisson which is located at a level below the basement concrete placing surface, the basement concrete is poured up to the casting surface. A sealing material is interposed between the surface and the basement foundation concrete, whereby the second invention structure can be formed. The sealing material seals the gap between the caisson's inner peripheral surface and the basement foundation concrete in a watertight manner, so that moisture in the ground passes between the caisson's inner peripheral surface and the basement foundation concrete and the basement It is prevented from entering the inside.

Here, the term “before casting the basement concrete” means not only when a caisson or a caisson member (a lower frame member) is manufactured in a factory or when a caisson is formed at a basement construction site, but also when the caisson is placed at a predetermined depth. While sinking, caisson is installed at a predetermined depth and then basement base reinforcement is arranged, basement base reinforcement is arranged,
It means that it includes the period from the basement foundation reinforcement to the placement of basement foundation concrete.

When the caisson is provided with a lower frame, inner and outer panels raised as discarded molds on the lower frame, and reinforced concrete wall concrete formed between the inner and outer panels, the inner and outer panels and the wall are provided. It does not matter whether the basement base concrete is cast at a high or low level relative to the interface between the concrete and the lower frame, but moisture in the ground penetrates into the basement through the caisson and the basement base concrete. In order to prevent this, the casting surface of the basement foundation concrete is set higher than the upper surface of the lower frame, that is, both the inner and outer panels and the boundary surface between the wall concrete and the lower frame, and the upper surface of the lower frame, that is, Preferably, a sealing material is provided over the lower frame and the inner panel across the inner and outer panels and the boundary surface between the wall concrete and the lower frame.

In the method of the second aspect of the present invention, if a water sealing material is provided at two or more steps above and below the caisson's inner peripheral surface at a height equal to or lower than the foundation concrete casting surface, The gap between the surrounding surface and the basement concrete is sealed in multiple steps in a watertight manner, so that the moisture in the ground can more reliably penetrate into the basement through the caisson inner periphery and the basement base concrete. Is prevented.

The water sealing material used in the second invention method includes:
Similar to the first invention method, a tape-shaped soft seal having elasticity and a water-swellable seal made of a water-swellable synthetic resin that absorbs moisture and expands can be used. In addition to the selective use of these, a tape-shaped soft seal having elasticity, and a water-swellable seal made of a water-swellable synthetic resin that expands by absorbing moisture are used. A method in which the inflatable seal and the inflatable seal are continuously arranged vertically or at an appropriate interval can be employed.

According to the method in which the soft seal and the water-swellable seal are used in combination, moisture in the ground passes between the inner peripheral surface of the caisson and the basement concrete due to the quick sealing action of the soft seal. In addition to preventing ingress into the basement, when the soft seal deteriorates due to the passage of time, the water-expandable seal, which appears slowly, seals the underground water from the inner surface of the caisson and the basement. Infiltration into the basement through the space between the foundation concrete is prevented.

Although the use of a water-swellable seal or a soft seal in combination with a soft seal is disadvantageous in terms of cost, after a long period of time, it penetrates into the basement through the space between the inner peripheral surface of the caisson and the basement concrete. Since it is expected that this will occur frequently, the sealing material used in the method of the second invention includes:
It is desirable to use a water-swellable seal or a soft seal in combination.

Next, the second invention structure comprises a caisson formed in a hollow figure in a plan view and installed at a predetermined depth on the basement basement floor of the basement, and a basement base formed on the basement basement bottom. On the base and this basement base,
And, a waterproof structure of a basement including a basement foundation concrete cast inside the caisson, and in order to achieve the object, a water sealing material inserted between the caisson and the basement foundation concrete. The technical means of being provided is adopted.

Thus, the gap between the inner peripheral surface of the caisson and the basement concrete is sealed in a watertight manner by the sealing material, and the moisture in the ground passes between the inner peripheral surface of the caisson and the basement concrete. It is prevented from passing into the basement.

Since the detailed description of the structure of the second invention is the same as that of the method of the second invention, it will be omitted to avoid repeated description.

Next, the third method of the present invention comprises a lower frame of a hollow figure in plan view, inner and outer panels which are set up on the lower frame at appropriate intervals inside and outside, and between the inner and outer panels. The caisson, which is formed of reinforced concrete wall concrete and forms the outer wall structure of the basement, is arranged at a predetermined depth on the basement base of the basement, and before and after this, the basement is placed on the basement base. After forming the bottom plate,
A method of waterproofing a basement in which basement concrete is cast on the basement base and inside the caisson, and in order to achieve the object, the inner panel or the outer panel is raised on a lower frame. Before, a sealing material is interposed between the lower frame and the inner panel or the outer panel, and before the basement concrete is cast, the foundation concrete is cast on the inner peripheral surface of the caisson. A technical measure is adopted in which a sealing material is provided in a portion located at a height below the plane.

As a result, the third invention structure is formed,
Since the space between the lower frame and the inner panel, between the lower frame and the outer panel, or between the lower frame and the inner panel, and between the lower frame and the outer panel are sealed in a water-tight manner by the sealing material, In addition, water is prevented from entering the caisson from inside the caisson, or water is prevented from entering the caisson from the ground, or water is prevented from entering the caisson from the ground. This prevents moisture from entering the caisson into the basement.

According to the third method of the present invention, the space between the inner peripheral surface of the caisson and the basement concrete is sealed in a watertight manner by the sealing material, so that the underground moisture is reduced inside the caisson. Infiltration into the basement through the space between the peripheral surface and the basement concrete is prevented.

The basement which is the premise of the third invention method will be described in more detail by assembling a hollow figure lower frame in plan view on the basement construction ground therein, and forming an inner panel and an outer panel on the lower frame. After setting up the inner and outer panels at predetermined intervals and arranging wall reinforcement between the inner and outer panels, concrete is poured between the inner and outer panels and hardened to form a hollow caisson in plan view This method is the same as the method of the first invention, and the caisson is arranged at a predetermined depth, before and after the caisson, the foundation bottom is leveled, and the foundation concrete is formed. Since the method of setting is the same as that of the second method of the present invention, it is omitted to avoid repeated description.

Further, the detailed description of the constituent features that characterize the third invention method is as follows. When the inner and outer panels are set up on the lower frame, one or both of the lower frame and the inner and outer panels are combined. The method of interposing a sealing material between them is the same as that of the first invention method, and the height of the inner peripheral surface of the caisson is less than or equal to the height of the foundation concrete placing surface before the foundation concrete is placed. Since the method of providing the sealing material at the portion located at the same position as that of the second method of the present invention, it is omitted to avoid repeated description.

Next, the third invention structure comprises a lower frame of a hollow figure in a plan view, inner and outer panels which are raised on the lower frame at appropriate intervals inside and outside, and between the inner and outer panels. A caisson, which is formed of reinforced concrete wall concrete and forms an outer peripheral wall frame of the basement which is installed at a predetermined depth on the basement basement floor of the basement, a basement base floor formed on the basement base floor, And on this basement base floor, and, in the basement waterproofing structure comprising a basement foundation concrete cast inside the caisson, in order to achieve the above purpose, the lower frame, one of the inner and outer panels or A technical means is provided in which a water-sealing material is provided between the caisson and the foundation concrete, and a water-sealing material is provided between the caisson and the foundation concrete.

[0093] Thereby, a water-tight material is provided between the lower frame and the inner panel, between the lower frame and the outer panel, between the lower frame and the inner panel, and between the lower frame and the outer panel. Water is prevented from entering the caisson from inside the caisson, or moisture is prevented from entering the caisson from underground, or moisture enters the caisson from underground This prevents water from penetrating into the basement from inside the caisson.

Further, according to the third aspect of the present invention, since the gap between the inner peripheral surface of the caisson and the basement concrete is sealed in a watertight manner by the sealing material, the underground moisture is reduced inside the caisson. Infiltration into the basement through the space between the peripheral surface and the basement concrete is prevented.

The detailed description of the structure of the third aspect of the present invention is the same as that of the third aspect of the present invention.

[0096]

As described above, according to the first method of the present invention, before the inner and outer panels are raised on the lower frame, the sealing material is interposed between the lower frame and one or both of the inner and outer panels. Since it is inserted, the space between the lower frame and the outer panel is sealed in a water-tight manner by a sealing material, or the space between the lower frame and the inner panel is sealed in a water-tight manner by a sealing material, or the outer panel Between the lower frame and the inner panel is sealed in a watertight manner by the sealing material.

That is, in the first method of the present invention, when the sealing material is inserted only between the lower frame and the inner panel, the space between the lower frame and the inner panel is sealed with the sealing material in a watertight manner. When the sealing material is inserted only between the lower frame and the outer panel in the first method of the present invention, the sealing between the lower frame and the outer panel is made watertight by the sealing material. When a sealing material is interposed between the lower frame and the inner panel and between the lower frame and the outer panel in the first method of the present invention, the lower frame is used. The function of sealing the space between the lower frame and the outer panel with the inner panel in a watertight manner is obtained, and the function of sealing the space between the lower frame and the outer panel in a watertight manner with the sealing material is obtained.

Further, the first invention structure includes a water sealing material interposed between the lower frame and one or both of the inner and outer panels, so that the space between the lower frame and the outer panel is sealed. Sealed in a water-tight manner with a water material, or between the lower frame and the inner panel is sealed in a water-tight manner with a sealing material, or, between the outer panel and the outer panel is sealed in a water-tight manner with a sealing material. At the same time, an effect is obtained that the space between the lower frame and the inner panel is sealed in a watertight manner by the sealing material.

That is, in the first structure of the present invention, when a water sealing material is provided only between the lower frame and the inner panel, the space between the lower frame and the inner panel is made watertight by the water sealing material. In the first structure of the present invention, when a sealing material inserted only between the lower frame and the outer panel is provided, the gap between the lower frame and the outer panel is provided. Can be sealed in a watertight manner by the sealing material. Further, in the first invention structure, the sealing material inserted between the lower frame and the inner panel, and the lower frame and the outer panel In the case of having a water sealing material interposed between the lower frame and the inner panel, the action of sealing the space between the lower frame and the inner panel in a watertight manner by the water sealing material is obtained, and the lower frame and the outer panel are The effect is obtained that the space is sealed in a watertight manner by the sealing material.

Further, in the second method of the present invention, before pouring the basement concrete, a sealing material is provided on a portion of the inner peripheral surface of the caisson located at a height below the basement concrete placing surface. Therefore, an effect is obtained that the space between the basement concrete and the caisson to be poured in thereafter is sealed in a watertight manner by the sealing material.

Further, since the structure of the second invention is provided with a water sealing material interposed between the caisson and the foundation concrete, a water sealing material is provided between the inner peripheral surface of the caisson and the basement concrete. Thus, an effect of being sealed in a watertight manner is obtained.

In addition, in the third method of the present invention, a water sealing material is interposed between the lower frame and one or both of the inner and outer panels before the inner and outer panels are raised on the lower frame. In addition, before casting the basement foundation concrete, a sealing material is provided on a portion of the inner peripheral surface of the caisson located at a height equal to or lower than the basement foundation concrete placement surface, so that the lower frame and the outer panel are The space between the lower frame and the inner panel is sealed in a water-tight manner by a sealing material, or the space between the lower frame and the inner panel is sealed in a water-tight manner by the sealing material, or the space between the lower panel and the outer panel is sealed in a water-tight manner by the sealing material. In addition to the sealing, an effect is obtained that the space between the lower frame and the inner panel is sealed in a watertight manner by the sealing material.

According to the third method of the present invention, since the sealing material is provided between the caisson and the foundation concrete, the space between the inner peripheral surface of the caisson and the basement concrete is provided. The effect of being sealed in a watertight manner by the sealing material is obtained.

[0104] In addition, the third invention structure includes a water sealing material interposed between the lower frame and one or both of the inner and outer panels, and further comprises a sealing material between the caisson and the foundation concrete. Since an interposed water-sealing material is provided, the space between the lower frame and the outer panel is sealed in a water-tight manner by the water-sealing material, or the space between the lower frame and the inner panel is sealed in a water-tight manner by the water-sealing material. Stopped,
Alternatively, an effect is obtained in that the space between the lower panel and the inner panel is sealed in a watertight manner with the sealing material while the space between the outer panel and the outer panel is sealed with the sealing material.

Further, according to the third method of the present invention, since the water sealing material is provided between the caisson and the foundation concrete, the space between the inner peripheral surface of the caisson and the basement concrete is sealed. The effect of being sealed in a watertight manner by the material is obtained.

[0106]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, as one embodiment of the present invention,
One embodiment of the third invention method including the first invention method and the second invention method, and the third invention structure including the first invention structure and the second invention structure will be described in detail with reference to the drawings. However, the present invention is not limited to this embodiment.

As shown in the sectional view of FIG. 1, a waterproofing method for a basement and a waterproofing structure for a basement according to an embodiment of the present invention are as follows.
A caisson C in which a lower frame A of a hollow figure is arranged in plan view on the ground for basement construction, and a wall frame B is formed on the lower frame A
Applied to basement using.

As shown in the explanatory view of FIG. 2, a pit P is formed on the basement construction site, which is wider than a plane projection of the basement and is dug down to the depth of the base bottom of the above-ground building. Frame A is assembled.

As shown in the plan view of FIG. 3, the lower frame A is formed such that the inner side of the long side and the inner side of the short side are formed as a two-to-one hollow rectangle in plan view. A corner member 1 is disposed at a corner, and a beam member 2 is disposed between the corner members 1 that are opposite to each other. The corner member 1 and the beam member 2 are disassembled. The corner member 1 and the beam member 2 or the beam members 2 are connected to each other using, for example, bolts and nuts, and are assembled on the basement building ground.

As shown in the exploded perspective view of FIG. 4, the corner member 1 has a bottom plate 11 serving as a weir plate on the bottom surface of the wall concrete 9 of the caisson C, which will be described later, and an outer portion extending downward from the lower surface of the two outer sides. A face plate 12 and a gutter 13 fixed to the lower inner surface of the outer plate 12 are provided. The bottom plate 11 and the outer plate 12 are inserted through bolt insertion holes 15a formed in the bottom plate 11, and It is integrated by fastening a tapping bolt which is tapped into a tap hole 15b formed in the flange 14 connected to the edge.

As shown in the perspective view of FIG. 5 and the side view of FIG. 6, the beam member 2 comprises a main member 21 and a Z-shaped reinforcing frame 22.
, A groove-shaped reinforcing frame 23, a lower reinforcing frame 24, and an upper reinforcing frame 25.

The main member 21 is formed by bending a single steel plate, and is a bottom plate 211 serving as a bottom plate in the wall concrete 9 of the caisson C described later.
An outer plate 212 extending downward from an outer edge of the bottom plate 211; and a bottom plate 211 from a lower edge of the outer plate 212.
A cutting edge reinforcing plate 213 which is extended obliquely upward toward
A horizontal reinforcing plate 214 is extended inward from the upper edge of the cutting edge reinforcing plate 213, and an inner edge reinforcing plate 215 is extended downward from the inner edge of the bottom plate 211.

The Z-shaped reinforcing frame 22 is formed by bending a steel plate. When the lower frame A is assembled, the bellows plate 211 of the gutter 13 of the corner member 1 shown in FIG.
The groove-shaped reinforcing frame 23 is formed by bending a steel plate so as to be flush with the horizontal reinforcing plate 214 so as to be flush with the horizontal reinforcing plate 214. It is welded to the upper surface and the inner surface of the outer plate 212.

The lower reinforcing frame 24 is formed by bending a steel plate, and includes a lower inner surface of the outer panel 212, an obliquely upward surface of the blade edge reinforcing plate 213, an outer surface of the abdominal plate of the Z-type reinforcing frame 22, and a groove. The cross-sectional shape of the lower part of the beam member constituted by the lower portion of the outer surface plate 212, the cutting edge reinforcing plate 213, the belly plate of the Z-shaped reinforcing frame 22, and the groove-shaped reinforcing frame 23 is welded to the lower surface of the mold reinforcing frame 23. Has been prevented.

The upper reinforcing frame 25 is formed by bending a steel plate, and the lower surface of the bottom plate 211, the outer plate 2
12, the upper surface and the groove wall of the grooved reinforcing frame 23, and the inner edge reinforcing plate 215, and these bottom plate 211, the upper portion of the outer surface plate 212, the grooved reinforcing frame 23 and the inner edge reinforcing plate 21 are welded.
5 prevents the cross-sectional shape of the upper part of the beam member from being deformed.

The number and arrangement of the lower reinforcing frame 24 and the upper reinforcing frame 25 can be arbitrarily designed.
In this embodiment, the beam member 2 is provided at a total of five locations, that is, at both ends in the axial direction and at three intermediate locations.

The corner member 1 and the beam member 2 are
And a bolt insertion hole 17 formed at an end of the bottom plate 211 of the beam member 2.
And a nut that is screwed into this bolt,
A bolt inserted into a bolt insertion hole 19 formed in an upper reinforcing frame 25 at an end of the beam member 1 and a flange 18 connected to an edge of the outer surface plate 12 of the corner member 1 and a nut screwed to the bolt are provided. It is fastened and connected by bolts and nuts or tapping bolts via a joint plate (not shown) applied to a joint between the gutter 13 and the blade tip reinforcing plate 213.

The beam members 2 are connected to each other by a bolt inserted between bolt insertion holes 19 and 19a formed in the upper reinforcing frame 25 at the ends, a nut screwed to the bolt, and
The seam plate 26 applied to the seam of the bottom plate 211 shown in FIG.
And a bolt inserted into a bolt insertion hole 16 formed at an end of the bottom plate 211 and a nut screwed to the bolt, and fastened by a nut, and a seam plate (not shown) applied to a joint between the blade edge reinforcing plates 213. Are connected by bolts and nuts or tapping bolts.

After assembling the lower frame A on the basement building ground in this way, the tape-shaped soft seal 4a is placed in the region 27 where the inner panel 3 of the bottom plate 211 of the beam member 2 shown by hatching in FIG. After the water sealing material 4 (4a) made of the adhesive is adhered, as shown in the sectional views of FIGS. By raising the panel 3, the lower frame A and the inner panel 3
And the water sealing material 4 (4a) is interposed therebetween.

The water sealing material 4 used here is made of a tape-shaped foamed synthetic resin, and has an adhesive adhered to one or both surfaces thereof.

As shown in FIG. 3, the inner panel 3 includes 24 panel members 31 each having a width obtained by dividing the axial length of the beam member 2 into four and a height of a caisson C described later, and each corner member 1. And four corner pillars 32 raised at the inside corners of the vehicle.
Then, a corner post 32 at one corner is built, and panel members 31 arranged on both sides of the corner post 32 are connected to the corner post 32 so that the corner post 32 and the two panel members 31 are lowered. Stand on frame A.

Here, the sealing material 4 (4a) is adhered to the surface of the corner post 32 facing the panel member 31 in advance or after the corner post 31 is set up on the lower frame A. The sealing material 4 is provided between the column 32 and the panel members 31 standing up on both sides thereof.
(4a) is inserted.

Thereafter, the panel members 31 which are sequentially moved away from the corner posts 32 are set up on the lower frame A, and are connected to the panel members 31 set up first. The sealing material 4 (4a) is also provided on the end face of the panel member 31 that is raised next to the panel member 31 that has been raised first.
And a sealing material 4 (4a) is interposed between adjacent panel members 31 as shown in the cross-sectional view of FIG.

After the inner panel 3 is set up in this way,
After assembling the inner reinforcing bar 6 of the wall reinforcing bar 5 shown in FIG. 1 to the inner panel, the outer panel 7 shown by hatching in FIG. The water material 4 (4a) is adhered, and thereafter, as shown in the cross-sectional views of FIGS. 1 and 9, the outer panel 7 is set up on the water sealing material 4 (4a), so that the lower frame A Outside panel 7
And a water sealing material 4 is interposed therebetween.

As shown in FIG. 3, the outer panel 7 has 24 panel members 71 having the same structure as the panel member 31 of the inner panel 3, and four corner covers 72 covering each corner from the outside. For example, the panel members 71 are sequentially raised from one end side of the wall surface, for example, and the separator (not shown) is used to stand on the lower frame A in a procedure of regulating the distance between the inner panel member 31 and the outer panel member 71 to be constant. increase.

Here, the sealing material 4 (4) is also provided on the end face of the panel member 71 to be raised next to the panel member 71 raised first.
a) is adhered, and a water sealing material 4 (4a) is inserted between the panel members 71 similarly to the inner panel 3 shown in the sectional view of FIG.

When the panel members 71 on one wall face each other, the outer reinforcing bars 8 of the wall reinforcing bars 5 shown in FIG. 1 are assembled to these panel members 71, and the outer panel members 71 on the four sides are laid and the outer reinforcing bars are arranged. When the streaks are finished, corner reinforcing bars (not shown) are arranged at the corners, and then the corner cover 72 is erected to complete the outer panel 7.

The sealing material 4 (4a) is interposed between the corner cover 72 and the panel member 71 adjacent to the corner of the outer panel 7 if necessary. Sealing material 4 between panel member 71 adjacent to
(4a) may be omitted.

Thus, the inner panel 3 is placed on the lower frame A.
And the outer panel 7 are set up at predetermined intervals inside and outside, and the wall reinforcing bar 5 (the inner reinforcing bar 6)
After arranging the outer reinforcing bars 8), a wall concrete 9 is poured between the inner and outer panels 3 and 7, and hardened to complete the caisson C on the basement construction ground as shown in the sectional view of FIG. Is done.

The caisson C is assembled by supporting the beam member 2 at an appropriate height with a base jack arranged at an appropriate position on the bottom of the pit P. After the caisson C is completed, the base jack is assembled. In short, the caisson C is lowered to the bottom of the pit P.

After the caisson C is completed and lowered to the bottom of the pit P, when the ground inside the caisson C is excavated,
With the weight of the caisson C, the outer surface plate 212 and the edge reinforcing plate 213
The edge of the hole cuts into the ground at the periphery of the excavation hole, and is discharged inside, whereby the periphery of the excavation hole is excavated, and at the same time, the caisson C sinks.

In practice, by mechanically digging the vicinity of the inside contour of caisson C and manually digging from the inside contour to the vicinity of the outside contour of caisson C, the digging depth at the periphery of the digging hole becomes extremely large. This prevents the caisson C from sinking abnormally fast and prevents the caisson C from tilting during the sinking.

As shown in FIG. 11, caisson C
Sinks to a predetermined depth, for example, the depth of the basement base 101, as shown in FIG. 1, the bottom surface of the excavation hole in the caisson C, that is, the basement base 101 is leveled, and the sand 102
After smashing and squeezing, the split stone 10
3 and concrete pieces are spread and further squeezed, and if necessary, a throw-away container 104 is cast on the split stone 103 and the concrete pieces to form the basement base floor 100.

Then, as shown in the sectional views of FIGS. 1 and 12, the inner concrete surface 105
A portion having the following height, for example, a belly plate 221 of the Z-shaped reinforcement frame 22
13 and the lower part of the inner groove wall of the groove-type reinforcing frame 23, and as shown in the sectional view of FIG.
The lower sealing material 4 is attached over 31.

The water sealing material 4 includes a tape-shaped soft seal 4a and a water-swellable seal 4b, and the soft seal 4a is arranged above the water-swellable seal 4b.

Thereafter, as shown in FIG. 1, the lower base reinforcing bar 106 and the upper base reinforcing bar 107 are arranged, and
As shown in FIG. 7, the water sealing material 4 in the upper stage is attached to a portion extending from the upper portion of the inner edge reinforcing plate 215 to the lower edge portion of the inner panel 3 to enhance the waterproof function.

The upper sealing material 4 attached to this portion is composed of a tape-shaped soft seal 4a and a water-swellable seal 4b, and the soft seal 4a is provided below the water-swellable seal 4b.
Is continuous.

Thereafter, as shown in FIG. 1, the basement foundation concrete 108 is cast and hardened to complete the basement foundation, and the basement foundation 109 having, for example, a heat insulating material interposed on the basement foundation. The basement floor structure is completed by installing a floor finishing material 110 made of, for example, a P tile, a decorative board, or the like.

As described above, the waterproof structure of the basement in which the sealing material 4 is interposed between the lower frame A and the inner panel 3,
Waterproof structure in a basement with a sealing material 4 (4a) interposed between the panel members 31 of the base, and a sealing material 4 between the lower frame A and the outer panel 3.
(4a) waterproof structure of the basement room interposed; water sealing material 4 between base panel members 31 of inner panel 3; waterproofing structure of basement room interposed with panel member 4 (4a); sealing material 4 between panel members 71 of outer panel 7
(4a) The waterproof structure of the basement interposed between the caisson C and the basement concrete 18 with two layers of water sealing material 4
A basement with a waterproof structure of the basement interposed therebetween is constructed.

This basement is provided with a waterproof structure for the basement in which a sealing material 4 (4a) is interposed between the lower frame A and the inner panel 3. An effect is obtained in which the space between the inner panel 3 and the inner panel 3 is sealed in a watertight manner. It is possible to prevent the intrusion into the underground room from inside C through the space between the lower frame A and the inner panel 3.

This basement is provided with a waterproof structure for the basement in which the sealing material 4 (4a) is interposed between the panel members 31 of the inner panel 3.
The function of sealing the gaps between the caissons C in a watertight manner is obtained by the sealing material 4 (4a). As a result, the water in the caisson C penetrates into the basement through the space between the panel members 31 of the inner panel 3. Can be prevented.

Further, this basement has a lower frame A and an outer panel 7.
The basement has a waterproof structure in which a water sealing material 4 (4a) is interposed between the lower frame A and the outer panel 7 in a watertight manner with the water sealing material 4 (4a). Action is obtained,
As a result, it is possible to prevent moisture in the soil from entering between the lower frame A and the outer panel 7 and into the caisson C.

Further, since this basement is provided with a waterproof structure of the basement in which the sealing material 4 (4a) is interposed between the panel members 71 of the outer panel 7, the basement has a waterproof structure. Has the effect of being sealed in a watertight manner by the sealing material 4 (4a). As a result, it is possible to prevent water in the soil from entering between the panel members 71 of the outer panel 7 into the caisson C. It can be prevented.

In addition, since this basement is provided with a waterproof structure for the basement in which the upper and lower two-stage sealing materials 4 are interposed between the caisson C and the basement foundation concrete 18, the basement has a waterproof structure. As a result, the water can be reliably sealed in a water-tight manner by the upper and lower two-stage sealing material 4, so that the moisture in the soil penetrates into the basement through the caisson C and the basement concrete 18. It can be reliably prevented from doing so.

[0145]

As described above, according to the first method of the present invention, the seal between the lower frame and one or both of the inner and outer panels is provided before the inner and outer panels are raised on the lower frame. Since the water material is interposed, the function of forming the first invention structure is obtained, and the space between the lower frame and the outer panel is sealed in a water-tight manner by a sealing material, or The inner panel and the inner panel are sealed in a water-tight manner by a sealing material, or the space between the lower frame and the outer panel is sealed in a water-tight manner by a sealing material and the space between the lower frame and the inner panel is sealed. It is sealed in a watertight manner by a water material.

As a result, according to the first method of the present invention, it is possible to prevent the moisture in the soil from entering the caisson through the space between the lower frame and the outer panel, or to reduce the moisture in the caisson. The effect of preventing the ingress into the basement through the space between the frame and the inner panel, or the effect of preventing moisture in the soil from invading the caisson through the space between the lower frame and the outer panel, and The effect of preventing the water in the caisson from entering the basement through the space between the lower frame and the inner panel is obtained.

That is, in the first method of the present invention, when the sealing material is inserted only between the lower frame and the inner panel, the space between the lower frame and the inner panel is sealed in a watertight manner by the sealing material. Since the action of stopping is obtained, the effect of preventing the water in the caisson from entering between the lower frame and the inner panel into the basement can be obtained.

In the first method of the present invention, when the sealing material is interposed only between the lower frame and the outer panel, the sealing between the lower frame and the outer panel is made watertight. Since the action of stopping is obtained, it is possible to obtain an effect of preventing moisture in the soil from entering the caisson through the space between the lower frame and the outer panel.

Further, in the first method of the present invention, when a sealing material is interposed between the lower frame and the inner panel and between the lower frame and the outer panel, the water sealing material is interposed between the lower frame and the inner panel. Can be sealed in a watertight manner by the sealing material, and the action of sealing the space between the lower frame and the outer panel in a watertight manner by the sealing material can be obtained. This has the effect of preventing intrusion into the basement through the space between the lower frame and the inner panel, and also prevents moisture in the soil from entering the caisson through the space between the lower frame and the outer panel. A possible effect can be obtained.

Next, the first structure of the present invention includes a water sealing material interposed between the lower frame and one or both of the inner and outer panels, so that the space between the lower frame and the outer panel is sealed. The space between the lower frame and the inner panel is sealed in a water-tight manner with a sealing material, or the space between the lower frame and the outer panel is sealed in a water-tight manner with a sealing material. It is possible to obtain the effect that the space between the lower frame and the inner panel is sealed in a water-tight manner with the sealing material, and as a result, the moisture in the soil reduces the space between the lower frame and the outer panel. The effect of preventing water from entering the caisson through the caisson, or the effect of preventing water in the caisson from intruding into the basement through the space between the lower frame and the inner panel, or the effect of preventing moisture in the soil from lower frame To prevent intrusion into the caisson through the space between the caisson and the water inside the caisson There is an effect which can prevented from entering the underground chamber passes between the lower frame and the inner panel is obtained.

That is, in the first structure of the present invention, when a water sealing material is provided only between the lower frame and the inner panel, the space between the lower frame and the inner panel is made watertight by the water sealing material. Therefore, the effect of preventing moisture in the caisson from entering the basement through the space between the lower frame and the inner panel can be obtained.

In the first structure of the present invention, when a water sealing material is provided only between the lower frame and the outer panel,
Water sealing material between the lower frame and the outer panel can be sealed in a water-tight manner, preventing water from entering the caisson through the space between the lower frame and the outer panel. A possible effect can be obtained.

Further, in the first structure of the present invention, a case where a water sealing material interposed between the lower frame and the inner panel and a water sealing material interposed between the lower frame and the outer panel are provided. In addition to the function of sealing the space between the lower frame and the inner panel in a water-tight manner with the sealing material, the space between the lower frame and the outer panel is sealed in a water-tight manner with the sealing material. As a result, the effect of preventing the water in the caisson from entering the basement through the space between the lower frame and the inner panel is obtained, and the moisture in the soil is prevented from flowing between the lower frame and the outer panel. Can be prevented from entering the caisson.

Next, in the second invention method, before casting the basement foundation concrete, a sealing material is attached to a portion of the inner peripheral surface of the caisson located at a level below the basement foundation concrete placement surface. Therefore, the function or effect of obtaining the second invention structure can be obtained. Further, the space between the basement foundation concrete and the caisson to be poured is sealed in a water-tight manner with a sealing material. You.

As a result, according to the second method of the present invention, it is possible to obtain an effect of preventing moisture in the soil from entering the basement through the space between the basement concrete and the caisson.

Next, the second invention structure is provided with a water sealing material interposed between the caisson and the foundation concrete, so that the space between the inner peripheral surface of the caisson and the basement concrete is sealed. As a result of the effect of being sealed in a watertight manner by the material, the effect of preventing the moisture in the soil from entering the basement through the space between the basement foundation concrete and the caisson is obtained.

Next, in the third invention method, before the inner and outer panels are raised on the lower frame, a sealing material is inserted between the lower frame and one or both of the inner and outer panels. At the same time, before casting the basement foundation concrete, a sealing material is attached to a portion of the inner peripheral surface of the caisson located at a height below the basement foundation concrete placement surface.
The effect that the invention structure can be obtained is obtained.

Also, according to the third invention method, between the lower frame and the outer panel, or between the lower frame and the inner panel, or
The space between the lower frame and the outer panel and the space between the lower frame and the inner panel are sealed in a water-tight manner by the sealing material, and the space between the basement foundation concrete and the caisson is sealed in a water-tight manner by the sealing material. You.

As a result, according to the third method of the present invention, it is possible to prevent the moisture in the soil from entering the caisson through the space between the lower frame and the outer panel, or to reduce the moisture in the caisson. The effect of preventing the ingress into the basement through the space between the frame and the inner panel, or the effect of preventing moisture in the soil from invading the caisson through the space between the lower frame and the outer panel, and The effect of preventing the water in the caisson from entering the basement through the space between the lower frame and the inner panel is obtained.

Further, according to the method of the third aspect of the present invention, there is also obtained an effect that it is possible to prevent moisture in the ground from penetrating into the basement through the space between the basement concrete and the caisson.

Further, the structure of the third aspect of the present invention includes a water sealing material interposed between the lower frame and one or both of the inner and outer panels, and an intervening material between the caisson and the basement concrete. Since a water sealing material is inserted, the space between the lower frame and the outer panel is sealed in a water-tight manner by the water sealing material, or the space between the lower frame and the inner panel is sealed in a water-tight manner by the water sealing material. Stopped or, while the space between the lower frame and the outer panel is sealed in a water-tight manner by the sealing material, and the space between the lower frame and the inner panel is sealed in a water-tight manner by the sealing material. The space between the basement foundation concrete and the caisson can be sealed in a watertight manner by a sealing material.

As a result, according to the third aspect of the present invention, the effect of preventing moisture in the soil from entering the caisson through the space between the lower frame and the outer panel, or reducing the moisture in the caisson An effect that can prevent the infiltration into the basement through the space between the frame and the inner panel, or an effect that can prevent moisture in the soil from intruding into the caisson through the space between the lower frame and the outer panel, And the effect of preventing the water in the caisson from entering the basement through the space between the lower frame and the inner panel can be obtained, and the moisture in the soil can pass between the basement concrete and the caisson. The effect of preventing intrusion into the inside can be obtained.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a procedure for installing a lower frame suitably used in an embodiment of the present invention.

FIG. 3 is a plan view of a lower frame and inner and outer panels suitably used in an embodiment of the present invention.

FIG. 4 is an exploded perspective view of a corner member suitably used in the embodiment of the present invention.

FIG. 5 is a perspective view of a beam member used in the embodiment of the present invention.

FIG. 6 is a side view of a beam member suitably used in the embodiment of the present invention.

FIG. 7 is a sectional view of a main part of the embodiment of the present invention.

FIG. 8 is a sectional view of another main part of the embodiment of the present invention.

FIG. 9 is a sectional view of still another main part of the embodiment of the present invention.

FIG. 10 is a sectional view schematically showing a caisson according to the embodiment of the present invention.

FIG. 11 is an explanatory diagram for explaining the procedure of submersion work according to the embodiment of the present invention.

FIG. 12 is a sectional view of still another main part of the embodiment of the present invention.

FIG. 13 is a sectional view of still another main part of the embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List A lower frame B wall frame C caisson 3 inner panel 4 sealing material 4a soft seal 4b water expandable seal 5 wall reinforcing bar 7 outer panel 9 wall concrete 31 panel member 71 panel member 100 basement base floor 101 basement base bottom 105 basement base concrete Casting surface 108 Basement concrete

Claims (19)

[Claims] 1. A lower frame of a hollow figure in a plan view, inner and outer panels standing up and down on the lower frame at appropriate intervals inside and outside, and a reinforced concrete wall formed between the inner and outer panels. It is a waterproofing method for a basement made of concrete and using a caisson that constitutes an outer peripheral wall frame of the basement that is installed at a predetermined depth on the basement basement of the basement. A waterproofing method for a basement, wherein a sealing material is interposed between the lower frame and the inner panel or the outer panel before standing up. 2. The waterproofing method for a basement according to claim 1, wherein an inner panel or an outer panel is set up on the sealing material after disposing the sealing material on the lower frame. 3. The waterproofing method for a basement according to claim 1, wherein the inner panel or the outer panel is set up on a lower frame after attaching a sealing material to the lower surface of the inner panel or the outer panel. 4. An inner panel or an outer panel is raised on a lower frame by sequentially raising a plurality of panel members on a lower frame, and a water sealing material is inserted between adjacent panel members. 4. The method for waterproofing a basement according to any one of items 3 to 3. 5. The waterproofing method for a basement according to claim 1, wherein an elastic tape-shaped or string-shaped soft seal is used as the water sealing material. 6. The waterproofing method for a basement according to claim 5, wherein the soft seal is made of a foamed synthetic resin. 7. The method for waterproofing a basement according to claim 1, wherein a water-swellable seal made of a water-swellable synthetic resin that absorbs water and expands is used as the water-sealing material. . 8. A plan view of a lower frame of a hollow figure, inner and outer panels standing up and down on the lower frame at appropriate intervals, and reinforced concrete wall concrete formed between the inner and outer panels. A waterproof structure of a basement including a caisson that constitutes an outer peripheral wall frame of the basement installed at a predetermined depth on the basement basement of the basement, wherein the lower frame and one of the inner and outer panels or A waterproof structure for a basement, comprising a water sealing material interposed between the both. 9. The waterproof structure for a basement according to claim 8, further comprising a plurality of panel members in which one or both of the inner and outer panels are sequentially added, and a water sealing material inserted between adjacent panel members. . 10. A caisson having a hollow figure in a plan view constituting an outer peripheral wall frame of a basement is disposed at a predetermined depth on a basement floor of a basement in the basement. After forming the basement base floor in
A method for waterproofing a basement in which basement foundation concrete is cast on the basement base floor and inside the caisson, wherein the basement foundation on the inner peripheral surface of the caisson is cast before placing the basement foundation concrete. A waterproofing method for a basement, wherein a sealing material is provided in a portion located at a height below a concrete casting surface. 11. The waterproofing method for a basement according to claim 10, wherein a water-sealing material is provided at a plurality of upper and lower portions at two or more steps located at a height equal to or lower than the foundation concrete casting surface on the inner peripheral surface of the caisson. 12. The method for waterproofing a basement according to claim 10, wherein an elastic tape-shaped soft seal is used as the water sealing material. 13. The basement waterproofing method according to claim 12, wherein the soft seal is made of a foamed synthetic resin. 14. The basement waterproofing method according to claim 10, wherein a water-swellable seal made of a water-swellable synthetic resin that absorbs water and expands is used as the water-sealing material. 15. As a water sealing material, a tape-shaped soft seal having elasticity and a water-swellable seal made of a water-swellable synthetic resin which absorbs water and expands are used. 11. The seal according to claim 10, wherein the seal and the seal are arranged vertically continuously or at an appropriate interval vertically.
2. The waterproofing method for a basement according to 1. 16. A hollow figure in a plan view,
A caisson arranged at a predetermined depth on the basement basement floor of the basement, and a basement base formed on the basement basement floor,
A basement waterproofing structure including a basement foundation concrete cast on the inside of the caisson on the base bottom, comprising a sealing material interposed between the caisson and the basement foundation concrete. The basement waterproof structure. 17. The waterproof structure for a basement according to claim 16, further comprising a plurality of upper and lower water sealing members interposed between the caisson and the foundation concrete. 18. A lower frame of a hollow figure in a plan view, inner and outer panels standing up and down on the lower frame at appropriate intervals inside and outside, and a reinforced concrete wall formed between the inner and outer panels. The caisson, which is made of concrete and forms the outer wall structure of the basement, is arranged at a predetermined depth on the basement base of the basement, and before and after this, a basement base is formed on the basement base, and On the basement base floor, and in a basement waterproofing method in which basement foundation concrete is cast inside the caisson, when the inner panel or the outer panel is raised on the lower frame,
A sealing material is interposed between the lower frame and one or both of the inner and outer panels. A waterproofing method for a basement, wherein a sealing material is attached to the portion located at the bottom. 19. A plan view of a lower frame of a hollow figure, inner and outer panels standing up and down on the lower frame at appropriate intervals, and wall concrete made of reinforced concrete formed between the inner and outer panels. Consisting of a caisson that constitutes the outer peripheral wall frame of the basement installed at a predetermined depth on the basement basement floor of the basement, the basement basement bottom formed on the basement basement bottom, and on this basement basement base, And,
A basement waterproofing structure including a basement foundation concrete cast inside the caisson, wherein the lower frame, and a sealing material interposed between one or both of the inner and outer panels, A waterproof structure for a basement, comprising a water sealing material interposed between the caisson and foundation concrete.