JPH09170241A - Disaster-prevention city - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively cope with a disaster under the maintenance of a community system by creating artificial base-isolated subsoil using a street zone divided into a range large enough to form a row of houses as one unit, and constructing a detached house and an apartment house on the artificial subsoil. SOLUTION: The underground is excavated to form underground space 2, and a column 5 is erected on a mat slab 3 in the space 2 so as to be aligned with a driving position for a foundation pile 4 to support the slab mat 3. In addition, base isolation rubber made of superposed rubber and a steel plate is provided on top of the column 5 as a base isolation element 7, and the foundation 1a of artificial subsoil 1 is supported with the column 5 via the base isolation rubber. Furthermore, a low-rise building such as a detached house 8 and an apartment house 9 is constructed on the artificial subsoil 1, and a disaster- prevention center 18, an emergency reserve warehouse against a disaster, a potable water tank and the like are constructed in the underground space 2 in such a state as fastened to the artificial subsoil 1. Also, the underground space 2 is formed to be usable as a shelter upon the occurrence of a disaster, and capable of reacting to a disaster including residents in surrounding areas.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disaster prevention city for urban areas where low-rise buildings are constructed.

[0002]

2. Description of the Related Art As a city disaster prevention measure, for example, widening the width of a road to prevent the spread of a disaster, ensuring a sufficient space between adjacent buildings, and making a structure fireproof or earthquake resistant. Is being implemented.

[0003]

All of these disaster prevention measures are hardware-like, and if a disaster that exceeds the response capability occurs, it will malfunction.

On the other hand, it has been confirmed that the community of local residents plays a major role in recovery by minimizing damage in the event of a disaster, but conventional hard disaster prevention measures make use of such local community. Is difficult.

An object of the present invention is to eliminate the inconveniences of the conventional examples, and to provide a disaster-prevention city that is resistant to disasters while maintaining a local community for dense residential areas and old urban areas that occupy most of the city. is there.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the present invention constructs an artificial ground of seismic isolation structure with a block divided into an area where houses can be formed as a unit, and a detached house on the artificial ground. Constructing buildings such as houses and apartments, and
On the artificial ground, install a seismic isolation device using a base isolation rubber of alternating structure of rubber and steel plate, and form an underground space below the artificial ground, and above the pillar constructed from the mat slab of the underground space. Supporting the artificial ground with the pillars through the installed seismic isolation device, and providing a disaster prevention facility such as a parking lot, stockpiling warehouse, water tank, disaster prevention center in the underground space,
Also, facilities that require seismic isolation measures, such as disaster prevention centers and water tanks, should be hung from the artificial ground, and the roadway should be separated from the sidewalk to be installed outside the block on the artificial ground, and formed below the roadway. The gist of the present invention is to lay a lifeline in the common groove, draw the lifeline into the building through the underground space, and fix the lead-in part to the artificial ground through a flexible joint.

According to the present invention as set forth in claim 1, by constructing a building here with the entire ground as a seismic isolation structure, local residents, for example, sway in a similar way to live on a land that they have been accustomed to. You can secure a strong house against.

According to the present invention as set forth in claims 2 and 3, in addition to the above-mentioned action, the seismic isolation device is composed of seismic isolation rubber having an alternating structure of rubber and steel plate, and By supporting the artificial ground by the pillar through the above-described seismic isolation device installed on the pillar constructed from the mat slab, it is possible to make the artificial ground a seismic isolation structure with a simple structure.

According to the present invention of claim 4, in addition to the above-mentioned action, by providing a disaster prevention facility such as a parking lot, a stockpiling warehouse, a water tank, and a disaster prevention center in the underground space, when a disaster occurs, the artificial ground is placed on the artificial ground. Residents can jointly use the disaster prevention facilities in the underground space, and can deal with disasters in blocks on artificial ground.

According to the present invention as set forth in claim 5, in addition to the above-mentioned actions, facilities that require seismic isolation measures, such as a disaster prevention center and a water tank, are suspended from artificial ground so that disaster prevention is required in the event of an earthquake disaster. Facilities such as the center and water tank can be protected and secured from vibrations.

According to the sixth aspect of the present invention, in addition to the above action, the road is separated from the sidewalk and provided outside the block of the artificial ground, so that it is generated by the running of the automobile even at times other than a disaster. It is possible to protect the lives of the inhabitants from the vibration caused by traffic.

According to the seventh aspect of the present invention, in addition to the above action, the lifeline is laid in the common groove formed below the roadway, so that the maintenance is facilitated and the lifeline lead-in portion is provided. Has a flexible structure and can be prevented from damage due to an earthquake by fixing it to artificial ground.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a vertical front view showing a main part of a disaster prevention city of the present invention, FIG. 2 is a plan view of the same as above, and FIG. 3 is a cross-sectional plan view of the same as above, which is a range in which a row of houses can be formed for a dense residential area or an old city area. For example, 100 m × 50 m (5
For example, an artificial ground 1 of seismic isolation structure is constructed in a unit of a block divided by a road 23 having a width of 6 m within a range of 000 m ² ).

The method for constructing the artificial ground 1 is, for example, a base pile 4 that excavates underground to a depth of about 4000 mm to form an underground space 2 and supports a mat slab 3 in the underground space 2.
The pillar 5 is constructed from the mat slab 3 in conformity with the driving position of, and a seismic isolation rubber called laminated rubber in which rubber and steel plates are alternately laminated is provided as the seismic isolation device 7 on the upper portion of the pillar 5,
The foundation 1a of the artificial ground 1 is supported by the pillars 5 via the seismic isolation rubber.

The pillars 5 can also use the foundation piles 4.

The load of the artificial ground 1 is RC, for example.
Assuming a three-story apartment building with a built-in structure, we will set it to about ² ton / m ² and build a low-rise building such as a detached house 8 or an apartment house 9 on the artificial ground 1, set up a sidewalk 10, and plant it. Perform planting 11.

The building plan and the greening plan are designed freely, and the building has only a slight structure by reducing the seismic force by using the artificial ground 1 as a seismic isolation structure.
Beams and streaks are unnecessary.

In the planting 11, the super-large tree 12 is planted from the mat slab 3 of the underground space 2 in consideration of the load of the artificial ground 1, and on the other hand, the opening 1b is formed in the artificial ground 1, and the opening 1
The super-large tree 12 is grown from b toward above the artificial ground 1. It should be noted that the opening 1b can be used for daylighting and ventilation of the underground space 2.

Between the artificial ground 1 and the underground space 2, there is provided a slope 13 which serves as an entrance / exit to the underground space 2, a parking lot 14 in the underground space 2 and a stockpiling warehouse 15 for disaster emergency use as a disaster prevention facility. , A rainwater tank 16, a drinking water tank 17, a disaster prevention center 18 having a communication equipment room, a private power generation room 19, an oil tank room 20, a fire pump 21, and other disaster prevention facilities and other pump rooms 22 were provided.

Among the above facilities, the facilities requiring seismic isolation measures such as the disaster prevention center 18 and the drinking water tank 17 are constructed to be suspended from the artificial ground 1.

The road 23 that divides the block is separated from the sidewalk 10 provided on the artificial ground 1 as a roadway, and the common groove 24 formed below the road 23 is provided with piping and wiring for electricity, gas, water, communication, etc. An infrastructure lecture such as a lifeline 25 is laid, and the lifeline 25 is drawn into the (low-rise) building such as a detached house 8 or an apartment house 9 through the underground space 2, and the lead-in portion 25a is connected through a flexible joint 26. And fix it to the artificial ground 1.

Reference numeral 27 in the figure denotes a drainage groove for preventing rainwater or the like from the road 23 from entering the underground space 2.

Next, the function of the disaster prevention city will be described. By constructing the entire block on the artificial ground 1 with the block formed in a certain range as one unit, the building constructed on this artificial ground 2 can be relaxed in regulations for disaster prevention, and the house can be freely designed. , The structure of the building can be made light by reducing the seismic force. Furthermore, the underground space 2 can be effectively used as a parking lot 14 or the like.

Since the roadway is located outside the block, it is free from daily traffic vibrations even in normal times, and when an earthquake occurs, the artificial ground 2 itself is provided with a seismic isolation device 7 having a soft characteristic in the horizontal direction. In particular, since the horizontal sway is prevented from being transmitted, the horizontal sway caused by the earthquake is reduced, and the buildings are less likely to be damaged.

Facilities that require seismic isolation measures such as the lifeline 25, disaster prevention center 18, drinking water tank 17, etc. are also fixed to the artificial ground 1, so damage from the earthquake can be avoided, and the equipment and facilities required during a disaster You can protect it from shaking.

The underground space 2 can be used as a shelter at the time of a disaster, and the facilities and facilities such as the disaster prevention center 18, the drinking water tank 17, and the stockpiling warehouse 15 installed here are not limited to the residents living on the artificial ground 1, but also the surrounding area. Cooperate with local residents to cope with disasters. In this embodiment, a disaster response facility and a parking lot 14 are provided assuming about 10,000 residents.

When the artificial ground 1 is similarly constructed in the adjacent blocks, it is possible to connect the underground spaces 2 to each other by the underpass 28.

[0028]

As described above, the disaster prevention city of the present invention is
While maintaining local communities in densely populated residential areas and old urban areas, which occupy most of the city, local residents can work together effectively to deal with disasters in certain areas.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of a disaster prevention city of the present invention.

FIG. 2 is a plan view showing an embodiment of a disaster prevention city of the present invention.

FIG. 3 is a cross-sectional plan view showing an embodiment of a disaster prevention city of the present invention.

[Explanation of symbols]

 1 ... Artificial ground 1a ... Foundation 1b ... Opening 2 ... Underground space 3 ... Mat slab 4 ... Foundation pile 5 ... Pillar 7 ... Seismic isolation device 8 ... Detached house 9 ... Apartment 10 ... Sidewalk 11 ... Planting 12 ... Super large tree 13… Slope 14… Parking lot 15… Stockpiling warehouse 16… Rainwater tank 17… Drinking water tank 18… Disaster prevention center 19… Private power generation room 20… Oil tank room 21… Fire pump 22… Pump room 23… Road 24… Common groove 25… Lifeline 25a ... Hook-in part 26 ... Fitting 27 ... Drain 28 ... Underpass

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshikatsu Miura 1-2-7 Motoakakasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Kaoru Ueno 1-2-7 Motokakasaka, Minato-ku, Tokyo No. Kashima Construction Co., Ltd. (72) Inventor Hajime Saito 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd.

Claims (7)

[Claims] 1. An artificial ground having a seismic isolation structure is constructed with a block divided into a range where houses can be formed as one unit, and a building such as a detached house or an apartment house is constructed on the artificial ground. Disaster prevention city. 2. The disaster prevention city according to claim 1, wherein the artificial ground is provided with a seismic isolation device using seismic isolation rubber having an alternating structure of rubber and steel plates. 3. The artificial ground is formed below the artificial ground, and the artificial ground is supported by the pillar via a seismic isolation device installed above the pillar constructed from a mat slab in the underground space. Disaster prevention city according to any of item 2. 4. A parking lot, a stockpiling warehouse, a water tank,
The disaster prevention city according to any one of claims 1 to 3, wherein a disaster prevention facility such as a disaster prevention center is provided. 5. The disaster prevention city according to claim 1, wherein facilities requiring seismic isolation measures, such as a disaster prevention center and a water tank, are suspended from artificial ground. 6. The disaster prevention city according to any one of claims 1 to 5, wherein the road is separated from the sidewalk and is provided outside the block on the artificial ground. 7. A lifeline is laid in a common groove formed below a roadway, the lifeline is drawn into a building through an underground space, and the drawn-in portion is fixed to an artificial ground through a flexible joint. The disaster prevention city according to any one of claims 1 to 4.