1. Seismic Geological
Table 1 - Comparison of the Technical and Economical Aspects of the Three Sites
Tun Yang
Dong Shan
Hu Tou Jiao
Regional geological stability
Safety shutdown earthquake intensity
Bedrock conditions
Slope stability
Acceptable stability
Acceptable stability
Intensity VIII
3rd Yan Shan Era; rough grained granite, massive rock, can meet acceptance criteria.
Relatively stable
Intensity VIII
Granite and volcanic rock, massive rock, can meet acceptance criteria.
Relatively poor, more engineering treatments
required.
Taipo Hai Feng fault passes somewhere near the the site relatively unstable.
Intensity VIII
3rd Yan Shan Era formation rough grained granite, massive rock, can meet criteria.
Relatively poor.
2.
Safety Analysis
1.. Effect of radioactive release (routine and
accidental) on environment.
2. Effect on local industry, town planning, etc.
Environmentally Safe and acceptable
to Guangdong and H.K. population.
Will affect Kui Chong Industrial area and the proposed tourist centre at Yan Tien.
Same as Tun Yang
Will affect the Dong Jia Bay section of the Dong Shan Bay Pearl Farm, as well as local town planning.
3.
Cooling Water Supply
Availability of cooling water
Dispersion of heated water
4.
Fresh Water Supply
(a)
Source of fresh water
5.
(b) Proposed measures
Same as Tun Yang
Cooling effects good, deep water available
Same as Tun Yang.
Acceptable
More favourable than Tun Yang
Cooling effect poor due to unfavourable
depth of water.
Good because a distance
of S km separates inlet and cutfall.
Available at Sha Yu Cheong River 1 km away.
Construct reservoir to provide water all year round.
Available at Yang Mei Keng River 3 km away, or Sha Yu Cheong River 18 km away.
Construct reservoir to provide water all year round.
Available from river 11 km away.
Construct reservoir
to provide water all year round.
85 hectares
General Layout : Total Area that can be utilized
Farmland affected :
Earthwork and rock excavation (above ground level)
People that will have to be resettled
Transportation
75 hectares
About 27 hectares
About 1.5 million to 2.0 million cubic meters
Approx. 680
80 hectares
About 40 hectares
About 2.5 to 3.0 million cubic meters.
Approx. 280
Nil
Same as Tun Yang.
Approx. 150
the
6.
(a)
By sea
(b)
By land
Transmission - Length of Transmission Lines
7.
(400 kV and 500 kV)
Transmission corridor
6.
Availability of Construction Materials
No problem anticipated for transportation of heavy bulky equipment by sea.
Site is accessible by road,' but major improvement is needed. The military highway will have to be re-routed.
400 kV to Shenzhen, 40 km 500 kV to Guangzhou, 104 km
No problem.
Same as Tun Yang
Road leads almost up to site, but needs vast improvement. The 8.5 km track connecting site to road is low-grade and must be rebuilt.
400 kV to Shenzhen 60 km 500 kV to Guangzhou 123 km
At one place the corridor is just 2 km wide, coordination of lines has to be made at
this bottleneck.
Same as Tun Yang
Same as Tun Yang
Road leads almost
up to site; improvement of road does not require intensive work.
400 kV to Shenzhen 130 k 500 kV to Guangzhou 177 km
No problem.
Same as Tun Yang
9. Living areas for personnel operation
10. Construction works Area
Construction materials available locally.
Shenzhen or Sha Tau Kok Yan Tien Township
Shenzhen, Sha Tau Kok Yan Tien and Wang Moun
township.
Nian Shan township or Ping Hai Township.
About 35 hectares
About 40 hectares
About 45 hectares
11. Construction water supply
Available at nearby Sha Yu Cheong River.
12. Construction power supply
From Shenzhen, 110 kV lines about 53 xm long need to be established.
From Yang Kei Keng River or nearby mountain stream.
From Shenzhen, 110 kV lines about 70 km needed to be established.
Available
at Chi Tou River 4 km
away.
110 kV
From Hui Yang, lines about 104 x needed
to be established.
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