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| New
Space for the Creation of Cities - Deep
Underground |
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Main contents
of guiding principles related to preservation of the environment
for the public use of the Deep Underground |
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| I |
The
role of guiding principles related to ensuring safety for the
public use of the Deep Underground |
| · |
Among the basic policies/measures regarding
the public use of the Deep Underground, concrete guiding principles
have been formulated related to ensuring safety with respect
to the collection and application of safety and environmental
information. |
| · |
All necessary studies, examinations of
impacts, and necessary measures related to criteria formulated
in the Basic Policies will be executed smoothly in an effort
to comply with the Basic Policies of the project. In addition,
appropriate procedures for authorization of use will be carried
out with the goal of contributing to the appropriate and rational
application of the use of the Deep Underground. |
| · |
Principles will be applied when project
operators examine measures to ensure safety and entities with
the right of authorizing use inspect usage authorization. |
| II |
Approach
to examination criteria and the examination for preservation
of the environment for the public use of the Deep Underground |
| · |
The table below lists the items
stated in the Basic Policies to be examined in order to preserve
and protect the environment. |
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| Criteria |
Specific
details |
| Subsurface
water |
Water intake
problems / ground subsidence due to declines of ground
water levels / water pressure |
| Obstruction
of flow of subsurface water |
| Quality
of subsurface water |
| Soil
movement due to set-up of facilities |
Soil movement
due to set-up of facilities |
| Chemical
reactions |
Increased
acidity of subsurface water caused by chemical reaction
of strata in Deep Underground-related strata, occurrence
of hazardous gases, heating of the soil foundation
and deterioration of its strength |
| Disposing
of excavated materials |
Processing
of excavated materials |
| Others |
Ventilation
of facilities, etc. |
| Use of the
Deep Underground in transportation, etc. |
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| · |
Approach to the selection of study techniques,
basic techniques, target study area, period of the study, etc., basic
techniques for the examination of impacts, period allotted for examination
of impacts, examination of measures for environmental protection,
inspection of outcomes of examinations, and post-project studies. |
| III |
Measures
for environmental preservation |
| · |
At all projects, it has been decided
to carry out necessary studies and examinations of impacts concerning
examination criteria for preservation of the environment in
accordance with the characteristics of the project and regional
characteristics, and to devise measures for environmental protection
if necessary. |
| · |
The approach to environmental preservation,
studies and methods of examining impacts, and necessary measures
are shown with respect to individual criteria such as subsurface
water, ground movement, and chemical reactions. |
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![[Artist's conception of use of the Deep Underground that takes subsurface water into consideration]](images/d_001_24_zu.gif) |
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[Artist's conception
of use of the Deep Underground
that takes subsurface water into consideration] |
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| IV |
Collection
/ application of environmental information |
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Information in connection with the execution
of the project is collected and processed in cooperation with the
national government, local public entities, and business operators,
and vigorous efforts are made to take account of energetic studies
and research carried out at academic and research institutions and
progress is made in applying the knowledge in screening. |
| · |
Advances are made in the development of
Environmental Impact Assessment techniques and environmental countermeasures
in accordance with the characteristics of the Deep Underground. |
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