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Folkestone-Dover sea wall wash-out


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A brief visit today.

 

A new kid on the block.

 

Another crane arrived and was being assembled, looks longer and broader,than the other two.

 

26847425774_977f528585_k.jpgP1430102 by David Todd 2012, on Flickr

 

27385116861_15c4c1d3f4_k.jpgP1430099 by David Todd 2012, on Flickr

 

27357367202_91c4319ef8_k.jpgP1430095 by David Todd 2012, on Flickr

 

26847461024_f7df97cbc0_k.jpgP1430094 by David Todd 2012, on Flickr

 

27180324950_4347a66c3e_k.jpgP1430059 by David Todd 2012, on Flickr

 

27422512866_bd2d05c20c_k.jpgP1430034 by David Todd 2012, on Flickr

 

27422502026_f62b1e090b_k.jpgP1430036 by David Todd 2012, on Flickr

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Last of the pile heads were uncovered, the concrete in the process of being removed.

 

27385401661_4378e6826b_k.jpgP1430035 by David Todd 2012, on Flickr

 

26847669174_35cce386e3_k.jpgP1430051 by David Todd 2012, on Flickr

 

27456840775_76f1cdb6c4_k.jpgP1430060 by David Todd 2012, on Flickr

 

27357519062_c427af433b_k.jpgP1430061 by David Todd 2012, on Flickr

 

26849488983_69b054b6db_k.jpgP1430065 by David Todd 2012, on Flickr

 

27385262461_e6d04d2cf4_k.jpgP1430069 by David Todd 2012, on Flickr

 

26847531754_1ad01859c6_k.jpgP1430080 by David Todd 2012, on Flickr

 

27357438972_d133f8ab59_k.jpgP1430081 by David Todd 2012, on Flickr

 

27422279896_27c592af2c_k.jpgP1430083 by David Todd 2012, on Flickr

 

26847504954_bf1b2b1ed0_k.jpgP1430084 by David Todd 2012, on Flickr

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A concrete pour, has been carried out on a third of the surface for   raft 1.

So markers can be painted on.

 

27456705215_99376efeca_k.jpgP1430089 by David Todd 2012, on Flickr

 

27456749795_e8ba75367c_k.jpgP1430078 by David Todd 2012, on Flickr

 

27456793385_f8b45730c2_k.jpgP1430066 by David Todd 2012, on Flickr

 

27456788485_7e07146ec0_k.jpgP1430067 by David Todd 2012, on Flickr

 

27357581492_2bf821d0e9_k.jpgP1430046 by David Todd 2012, on Flickr

 

26847697974_6617aed2a2_k.jpgP1430047 by David Todd 2012, on Flickr

 

27180362460_dc85157493_k.jpgP1430049 by David Todd 2012, on Flickr

 

27422438846_8f265ada4b_k.jpgP1430048 by David Todd 2012, on Flickr

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A concrete pour, has been carried out on a third of the surface for   raft 1.

So markers can be painted on.

 

*snip*

 

 

Indeed - tis' a "blinding layer" to give the crew a tidy, level surface to form up the steel reinforcing cages.

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Just as a matter of interest David. How does the level of that new concrete surface relate to the level of the railheads at the tunnel mouth.  I'm just trying to get a handle on what leel the track is going to be un relation to the top of the rebar in the piles.

 

Once again thanks very much for the photo updates.

 

Jamie

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I wonder if they'll cast the deck in-situ, use the lorry park as a casting site, or bring them in from an external supplier. Will the deck be pre-stressed?

 

They will have to cast some of it in situ in order to concrete in the rebar.  Presumably once they've cast a 'reinforced concrete girder base structure' precast units could be located onto it nut that might not be such a good idea as the interface between site cast and precast would allow possible water ingress to the structure.  and presumably those big black pipes are going to be built in for draining the viaduct?

 

In that connection I se that there are already a few places on the new flyover at Reading where water is draining out at the interface between two lots of concrete.

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Just as a matter of interest David. How does the level of that new concrete surface relate to the level of the railheads at the tunnel mouth.  I'm just trying to get a handle on what leel the track is going to be un relation to the top of the rebar in the piles.

 

Once again thanks very much for the photo updates.

 

Jamie

 

You would need a ground level shot to see that.

Been trying for a couple of days, but with material clutter, I cant get one.

These are all I can do.

 

26784932044_2f55a95824_k.jpgP1420629 by David Todd 2012, on Flickr

 

27137151370_2823f26ef8_k.jpgP1420808 by David Todd 2012, on Flickr

 

27137077260_261b5afb75_k.jpgP1420837 by David Todd 2012, on Flickr

 

26769459354_f246d0eaa9_k.jpgP1420450 by David Todd 2012, on Flickr

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Last Post.

 

The last two,of the four holes,in this area, have brought up little chalk spoil, just loamy,sandy stuff with pebbles, so, the weakest/washed out points/voids.

Hence, drilling first cylinder,then stack and drill all 3 down.

My theory only.

 

27422335466_2077b04a46_k.jpgP1430071 by David Todd 2012, on Flickr

 

27385242501_0f9829fe2e_k.jpgP1430072 by David Todd 2012, on Flickr

 

27180282190_87926cbb54_k.jpgP1430073 by David Todd 2012, on Flickr

 

27422325536_717e058cec_k.jpgP1430074 by David Todd 2012, on Flickr

 

27180271360_e69a3f556a_k.jpgP1430076 by David Todd 2012, on Flickr

 

 

 

The site this afternoon. West to East.

 

 

27456705215_99376efeca_k.jpgP1430089 by David Todd 2012, on Flickr

 

27385171911_c49e7761e8_k.jpgP1430090 by David Todd 2012, on Flickr

 

26849363743_e8987b39f6_k.jpgP1430091 by David Todd 2012, on Flickr

 

27385161731_3d4e7ef9d3_k.jpgP1430092 by David Todd 2012, on Flickr

 

26849349623_faa4f05ae7_k.jpgP1430093 by David Todd 2012, on Flickr

 

26847461024_f7df97cbc0_k.jpgP1430094 by David Todd 2012, on Flickr

 

27357360252_4851245610_k.jpgP1430096 by David Todd 2012, on Flickr

 

27385130701_5a8f7f137e_k.jpgP1430097 by David Todd 2012, on Flickr

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Thanks for those shots Dave, it looks as if the top of the concrete will be not far above the ends of the rebar that's sticking out of the piles but it will no doubt all become clearer in due course.

 

Jamie

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Thanks for those shots Dave, it looks as if the top of the concrete will be not far above the ends of the rebar that's sticking out of the piles but it will no doubt all become clearer in due course.

 

Jamie

 

 

My best guesstimate, Red line and block depth. 1 metre   20cms.

 

27435969896_9a059175df_k.jpgRail Height 5 6 16 by David Todd 2012, on Flickr

 

 

This bloke looks 6 foot,  infill around base, plus concrete,  rebar height about a metre. ?

 

waist level ?

 

27436149936_4cc9981471_k.jpgP1430052 by David Todd 2012, on Flickr

Edited by David Todd
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I wouldn't be surprised if the rebar from the piles was going to be  bent at right angles to tie in with that of the raft. I suppose one of the things determining the depth of slab might be  whether the track will be slab or conventional.

 

I was interested to see that the joggle section  and ring welded into the rebar on each pile was removed. I assume it was there as part of the concrete delivery system rather than pile structure. Possibly to guard against loss of the funnel section down the hole. I an also curious about the sheathing around the top section of the rebar. Is it possible it was there to ensure that concrete contaminated with ground water and debris from the start of the pour was kept away from the rebar at the top? The  nibbling of the piles would have ensured that  they are back to clean concrete.

 

Fascinating pictures as ever, I'm sure we'll se all the answers in due course.

 

Thanks

 

Dave

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Another bit of musing - the newly arrived crane is much bigger than the other two which means it will cost more so there must be a reason for it.  It might be that one of the others is needed elsewhere and the new one was the only available replacement but equally it might mean heavier lifts at a greater radius which might mean concrete viaduct sections on top of a site cast base?  (Although I still wonder about water getting between the two.)

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Does anyone know why the piles aren't spaced equidistant from each other? The centre row seems offset to the left.

Probably/possibly, from the best geo data to drill the Center piles,leaving the outer track,on more of a wing,

(And a pray).

 

From where the track is cut in the center of the site,there is a slight curve on the approach to the tunnel mouths,

The up line (seaward), will have a slight dog leg to it,to line up with the seaward tunnel.

You can see in this photo, the track spacing has to open up before the tunnel mouth.

 

post-13585-0-98753300-1465127553.jpg

 

post-13585-0-29044000-1465127688.jpg

 

post-13585-0-60607700-1465127801_thumb.jpg

 

Unless they have re jigged,the old track work, as was all relaid in 2008, for HST 1,to Dover.

 

post-13585-0-06668200-1465127728_thumb.jpg

 

post-13585-0-62493700-1465127854_thumb.jpg

 

post-13585-0-85489600-1465127989_thumb.jpg

Edited by David Todd
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Does anyone know why the piles aren't spaced equidistant from each other? The centre row seems offset to the left.

[/quote

 

I suppose it might be due to the spacing of the longitudinal timbers on the original timber viaduct.

 

Jamie

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Thanks for those shots Dave, it looks as if the top of the concrete will be not far above the ends of the rebar that's sticking out of the piles but it will no doubt all become clearer in due course.Jamie

This time next week should see a lot of the framework in place,on Raft 1.

 

Apparently a crew change tonight/ morning, a Dover Crew,tops the bill this week .

 

So, you can all go on holiday after Raft 1 is set out, because, you will know what Rafts 2,3,&4 will look like.

 

My bet is, trains running,both tracks, end of September 16, with beach work a separate entity.

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The granddaughter, left for Cambridgeshire, at 0900 this morning,with me in the back of the car,

"You can get out here grandad", as we approached the bus stop at Megger/Avo.

 

"You can walk up the "mountain" on your own today, Byeee".

 

 

So I did.

 

 

27448307796_b6baf82446_k.jpgP1430107 by David Todd 2012, on Flickr

 

 

 

But, on  the way, the Dover Lifeboat was out training.

 

27482350705_8547e6cb25_k.jpgP1430127 by David Todd 2012, on Flickr

 

27410809301_13beb040b6_k.jpgP1430128 by David Todd 2012, on Flickr

 

27410799771_2b84932ab2_k.jpgP1430129 by David Todd 2012, on Flickr

 

26875076673_ab50922fb4_k.jpgP1430130 by David Todd 2012, on Flickr

 

27482337305_dc7b6df71b_k.jpgP1430136 by David Todd 2012, on Flickr

 

26873536524_d471d26cde_k.jpgP1430138 by David Todd 2012, on Flickr

 

26873533794_41500c41f8_k.jpgP1430140 by David Todd 2012, on Flickr

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