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Old December 15th, 2008, 11:16 PM   #1541
keber
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Quote:
Originally Posted by RawLee View Post
As I said,ground is not the most stable here. Its of this material:
Interesting, because you're building underground nuclear waste shelter about 7 km away. That sort of building needs very good geology. And if there is difficult geology, then building a tunnel with low overburden is even more demanding (and costly).
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Old December 15th, 2008, 11:36 PM   #1542
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Interesting, because you're building underground nuclear waste shelter about 7 km away. That sort of building needs very good geology. And if there is difficult geology, then building a tunnel with low overburden is even more demanding (and costly).
It is in a stable geological formation,deep inside(1500m)/below(250m) the hill. It is for low and medium activity waste.
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Old December 15th, 2008, 11:42 PM   #1543
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Looking at longitudinal profile here
http://roads.extra.hu/road_plans/m6_...rd_boly_hm.jpg
second and fourth tunnel (first and third on above aerial photo) are really not necessary. And if alignment would go a bit higher (10 m maybe) longer and higher viaducts between tunnels would make motorway on that part much more cheap and only first tunnel would be necessary.
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Old December 16th, 2008, 12:04 AM   #1544
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An expert said: a viaduct is more expensive than a tunnel in that area.

(I dont believe that... )

I agree with your suggestion:

Last edited by H123Laci; December 16th, 2008 at 12:11 AM.
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Old December 16th, 2008, 12:11 AM   #1545
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Quote:
Originally Posted by keber View Post
Looking at longitudinal profile here
http://roads.extra.hu/road_plans/m6_...rd_boly_hm.jpg
second and fourth tunnel (first and third on above aerial photo) are really not necessary. And if alignment would go a bit higher (10 m maybe) longer and higher viaducts between tunnels would make motorway on that part much more cheap and only first tunnel would be necessary.
I'd rather trust an expert than anybody else,as this is their job. Why not doubt those who develop airbags? They are really unnecessary,as they are rarely used,but raise the cost of the car. Most people never have the chance to use it I personally feel that even if these tunnels wont save enough fuel in 50 years to justify their costs,they will save more than enough through their lifetime.
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Old December 16th, 2008, 12:15 AM   #1546
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Can't be. Especially when looking what kind of viaducts are currently in construction in those valleys (pretty simple and inexpensive).
Tunnels in Panonia-type of geology were always expensive and difficult to build.
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Old December 16th, 2008, 12:17 AM   #1547
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Can't be. Especially when looking what kind of viaducts are currently in construction in those valleys (pretty simple and inexpensive).
Tunnels in Panonia-type of geology were always expensive and difficult to build.
And big and heavy bridges are not in danger because of unstable terrain?
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Old December 16th, 2008, 12:21 AM   #1548
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I'd rather trust an expert than anybody else,as this is their job.
Let say, that I work in designing such things, so I know quite a lot of that. Shorter tunnels are cheaper than longer, but even better is having none of them. Of course don't mix here Koroshegy-type viaducts.
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Old December 16th, 2008, 12:22 AM   #1549
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And big and heavy bridges are not in danger because of unstable terrain?
They are, but tunnels are even more.
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Old December 16th, 2008, 12:38 AM   #1550
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Maybe Hungarians just want to have some tunnels.
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Old December 16th, 2008, 01:07 AM   #1551
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Quote:
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I'd rather trust an expert than anybody else,as this is their job.
what if that expert talks for himself?
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Old December 16th, 2008, 09:38 AM   #1552
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Maybe Hungarians just want to have some tunnels.
nope.
not the hungarians but the austrian tunnel builders (strabag) - who are in good friendship with the government - want to build tunnels...

HERE is a construction gallery
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Old December 16th, 2008, 10:35 AM   #1553
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This won't be the first tunnel without a hill.

Guess the country.

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Photo: Jože Pojbič/Delo
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Old December 16th, 2008, 12:38 PM   #1554
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This won't be the first tunnel without a hill.

Guess the country.

are you talking about this tunnel?
(I can see a hill above it...


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Old December 16th, 2008, 12:53 PM   #1555
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Quote:
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are you talking about this tunnel?
(I can see a hill above it...
Here's your hill.Now can you stop ranting?





(from m6m60.extra.hu)
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Old December 16th, 2008, 01:44 PM   #1556
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Here's your hill.Now can you stop ranting?
No. No. NO. NO. NO! NO! NOOOOO!
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Old December 16th, 2008, 02:41 PM   #1557
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We only have tunnels for passing canals and rivers. AFAIK we don't have any tunnels for hills, but Chris will probably prove me wrong again
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Old December 17th, 2008, 05:32 PM   #1558
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Motorway constructions at the present time. ( blue) main roads (green)
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Old December 17th, 2008, 05:38 PM   #1559
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...and this should be the result within a few years.
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Old December 17th, 2008, 06:31 PM   #1560
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Quote:
Originally Posted by keber View Post
Can't be. Especially when looking what kind of viaducts are currently in construction in those valleys (pretty simple and inexpensive).
Tunnels in Panonia-type of geology were always expensive and difficult to build.
that's true. here in Croatia we are experienced with tunnels, and one of the most expensive and most complicated to build were 2 tunnels near Varaždin at A4
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