China's Multi-level Air Defense Network
This was published in a chiense article but can't find the rest
Early 1995, China's media reported that a Great Wall project for China's strategic missile force was completed after 10 years of construction in a
"famous" mountain range in North China. Look at the topographic maps and read the news reports caref ully, it can be deduced that the underground
tunnel network is in the famous Tai-Hai Mountain Range between Hebei and Shanxi provinces. According to the news reports, "tens of thousands" of
Army engineers spent over 10 years there digging tunnels.
Normally, a company of soldiers (about 100 men) can dig about 100 meters of tunnel per month (based on the news reports about railroad tunnel
construction) without using any advanced tunnel drilling machinery. So the "tens of thousands" of Army engineers (= hundreds of companies) over the
10-year period would have constructed an underground tunnel network of thousands of kilometers inside the Tai-Hei Mountain Range to hide some of
China's strategic missiles. I guess it was called the "Great Wall" projec t not without a reason for the Great Wall is at least 5,000 kilometers
Like other known mountain ranges housing underground tunnel networks for China's strategic missiles, the Tai-Hei Mountain Range has many steep cliffs
and canyons with large big elevation changes over a short distance between 1,000 and 2,000 meters. So yo u can easily dig tunnel networks with over
one kilometer thick earth-cover in mountain ranges.
A typical 500-kiloton nuclear warhead in U.S. or Russian arsenals can `dig' a big hole 70m deep and 300m wide on the ground, and that is more than
enough to destroy a missile silo or even an airport. If specially hardened for the earth-penetration purpos e, it may create a huge crater sphere 200
meters in diameter underground. Taken into account of the rupture zone around the crater and the likely penetration depth of warheads, at least three
500-kiloton warheads will have to land on the same spot sequen tially in order to penetrate the 1-kilometer thick earth cover and destroy the tunnel
underneath. Even with the monster 20-megeton warhead on Russia's single-warhead SS-18, at least two warheads have to land on the same spot.
Moreover, one would destroy less than 300 meters of a tunnel using three warheads. Assuming the underground tunnel network under the Tai-Hei Mountain
Range is only 1,000 kilometer long, one would need to use 10,000 (ten thousand) 500-kiloton warheads in order to make sure the tunnel network is
completely destroyed. This is the VERY unlikely case in which you know the exact layout of the entire tunnel network. AND this is just one of several
missile sites in China.
EDIT: Seekerof this wasn't from a article
[edit on 1-7-2005 by chinawhite]