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Post by okla on Mar 26, 2011 10:39:24 GMT 8
Hey Tiyo....This is the most complete description/story of the leadup to the creation, operation and dismantling of CAST,etc that I have had occasion to read. Thanks for posting. Somewhere on this site, maybe even in earlier portions of this thread, there is a map of Corregidor depicting the defensive lines of the defenders that were in place after the Japanese had established themselves on the "rock". Of course the chart shows the main defensive line, running North to South across Water Tank/Denver Hill. But also shown is a small defensive perimeter around Monkey Point. Evidently we thought the position worth defending those last hours. Wonder if there was still some activity going on, we needed a bit of time to destroy what equipment might still be located in the tunnel or maybe a group of defenders figured that the tunnel area was an excellent defensive position for a "last stand". Thanks for posting. Tomorrow I plan to re-read the whole document again, at my leisure. Cheers.
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Post by fots2 on Aug 5, 2012 22:43:44 GMT 8
This thread was buried on the second page so since we have been discussing the Navy tunnels recently, I thought I would bump it up to the top.
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Post by pdh54 on Aug 5, 2012 23:41:11 GMT 8
Hi Fots, Just a quick question.... In looking at the following that you posted on page 1: NAVY DEPARTMENT WORK
Affirm Complete: Made and installed grating cover for ventilating shaft. Incomplete: Construction of foundation for obstruction light poles and installation of obstruction lights.
Dog Complete: Tunnel excavation, concrete, and steel. Approximately 13% complete: Tunnel backfill.
Queen Complete: Constructed foundation for engine. Constructed foundations for oil and water tanks. Approximately 100% complete: Tunnel excavation, concrete, and steel. Approximately 7% complete: Tunnel backfill.
Roger Complete: Hauled materials to site of project. Approximately 85% complete: Tunnel excavation, concrete, and steel. Incomplete: Tunnel backfill.
Read more: corregidor.proboards.com/index.cgi?board=talk&action=display&thread=852&page=1#ixzz22gd7xsGc
do you know what they are referring to when they mention tunnel backfill? Most of them seem to have it listed as part of the construction. Patty
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Post by okla on Aug 6, 2012 2:04:53 GMT 8
Hey Patty....I quizzed one of my old college "house mates" on this question. He was one of a group of 5 of us who had this residence (the original "Animal House") leased while we attended Oklahoma State Univ on the Korean GI Bill. He, being a Civil Engineer (worked for the Indian Bureau of the Dept of the Interior till his retirement several years ago). I am sure I blew his mind with the wording of my query, but he said "back fill" when used in the context of tunneling was the procedure of filling the rough space between the tunnel lining and rough rock wall,etc with "grout, cement", etc type material. I assume this "tunnel lining" he referred to would be the wooden forms,etc. This conflab was done long distance over cell phones so we may be way off base. For technical stuff, such as this, he and I, probably, should have been sitting at a kitchen table with pencils/pens and paper so as to draw diagrams,etc. This is probably of, absolutely no help, but I tried. Cheers.
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Post by pdh54 on Aug 6, 2012 4:05:43 GMT 8
Thanks for asking your friend, Okla.
Okay, I can see that as an answer. If they were lining the tunnel walls and ceiling with concrete or something, I can see filling in all the little spaces between that wall and the original rock wall. Maybe it helped strengthen the new wall somehow. Maybe it had to do with holding down any erosion happening outside the new wall in the space. You don't want the ground around your retaining walls and ceiling moving, I guess.
I know when I built a small rock retaining border that was only two or three rocks high, I instinctively did that so the rocks would be stable.
thanks again
Patty.
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Post by fots2 on Aug 6, 2012 22:31:54 GMT 8
Thanks okla for explaining this better than I could.
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Post by fortman on Aug 6, 2012 23:16:51 GMT 8
Okla,
There was a "4-piper" USS Peery, so "Perry" could refer to Peery.
Regards,
fortman
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Post by okla on Aug 7, 2012 2:00:32 GMT 8
Hey Fortman.....I am still looking. The last two old "4 Pipers" of Admiral Hart's Asiatic Fleet to leave Manila Bay, heading for future futility in the Java campaign, were the USS Peary and Pillsbury. This was around Christmas so this "Peary" apparently isn't the possible "Peery", but you still may be on to something. I will now start to really "dig". As I said, these minute details tend to literally run me nuts. Thanks for feeding my frenzy. lol.
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Post by fortman on Aug 7, 2012 14:35:26 GMT 8
Hi Okla,
It's a pleasure.
fortman
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Post by fots2 on Mar 25, 2013 19:18:35 GMT 8
(This is a repost of recent information that chadhill posted. I’ll stick it here so it appears in this thread about the Malinta Navy tunnels. I wonder why the Admiral mentions multiple tunnels with the same name. Thanks to Patty and Chad.)The following is page 2 (of 37) from Rear Admiral Rockwell's Narrative of Naval Activities in Luzon Area, December 1, 1941 to March 19, 1942. It was signed, dated and submitted to Admiral King, C-in-C, US Fleet on August 1, 1942. Admiral Rockwell set up his headquarters inside Queen Tunnel on December 21 and remained there until he was evacuated by PT boat with General MacArthur on March 11. The paragraph titled CORREGIDOR contains an interesting description of Queen and four lateral tunnels. The torpedoes were stored in the laterals, which answers earlier questions about that, although facilities for overhauling and testing the fish were inside the "L-Section of Tunnel Queen which ran at right angles from the inner end of the main tunnel and terminated in the escape entrance overlooking South Harbor". Also interesting is the mention of an unfinished pilot tunnel and the three Roger tunnels, also uncompleted. Unfortunately, it appears no diagrams or photos were included in Rockwell's report.
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