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Offline HobbyistTopic starter
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« on: April 22, 2009, 10:13:18 pm »
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Site: Japanese army WW2 underground complex/ air-raid shelter.
Source: 90 year old slave-labor survivor who worked at the site.
Area: Approximately 2.5 acres.
Location: beside a river.
Terrain of site: Flat to gently undulating.
Surrounding terrain: Flat and approximately 2 feet lower than the target site. The river is of course much lower.

Detector used: Discovery 2 box.
North to south scan: Sharp short tone every 3 feet for the entire 2.5 acre area.
West to east scan: Sharp short tone every 3 feet for the entire 2.5 acre area.
"Control" scan outside the site in surrounding property: No tones.
Loud and continuous signals: 6 clear targets. The largest was approx 5 feet in diameter.

Questions:
1) Would the short sharp tones at 3 feet intervals be indicative of i-beams? The tone seems too distinct to be the usual concrete beam rebar.
2) Can anyone provide architectural plans or any diagrams for Japanese bunkers and similar below-ground constructs?

Thanks!


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"Gold rides an iron horse." (Old prospector Homefire)

Offline ZOBEX
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« Reply #1 on: September 09, 2009, 02:56:35 am »
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We have punched several Japanese  bunkers over the years.  Post a sketch of what you are talking about and any pictures to give a better idea of the terrain.  What island is also inportant.

Z


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Offline kendavid
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« Reply #2 on: September 09, 2009, 05:31:08 am »
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Do you have an accompanying depth with your scans? What is your estimate? 2.5 acres is a big area!

Best regards,
kd

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KD

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« Reply #3 on: September 14, 2009, 07:01:56 am »
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Wow..i posted that question way back in April. No worries guys, that site's been explored and so has another similar one approx 80km away from it. Result: nada.

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Offline kendavid
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« Reply #4 on: September 14, 2009, 10:19:12 am »
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I think it's a dead thread......... moving along now.. Smiley

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