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22 minutes ago, Bollu said:

ninna observe chesanu concrete pouring in blocks, konni blocks lo gravel vesi posaru, konni emo thermal sheets esi posaru. kinda stell kani emi pettaledu. emi support lekunda antha strong ga ela utnado.

cement road elaa vesthaaro eppudu choodaledhaa meeru. steel is required for slab not for cement road. spill channel is cement road with more thickness

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25 minutes ago, Bollu said:

ninna observe chesanu concrete pouring in blocks, konni blocks lo gravel vesi posaru, konni emo thermal sheets esi posaru. kinda stell kani emi pettaledu. emi support lekunda antha strong ga ela utnado.

idi oka techniq to have repairs for every 10  to 15 years ki  2000 Cr expense on spill channel so partys get commission. prakasham barrage daggara kuda alage sestharu kada every 10 to 15 years ki. chudaleda. :D

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3 minutes ago, ravindras said:

cement road elaa vesthaaro eppudu choodaledhaa meeru. steel is required for slab not for cement road. spill channel is cement road with more thickness

na chinnappudu eppudo chusanu ma inti mundhu road vesetappudu, but steel/iron adi vadinattu gurthu. ikkada 50lac cusec water discharge ayyetappudu a weight ki cement road kungada? yesterday engineers said that they taken some cement blocks for testing, they have verified quality of the works too and appreciated govt. stilling basin ki iron vadaru konni clippings chusanu. 

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32 minutes ago, Bollu said:

na chinnappudu eppudo chusanu ma inti mundhu road vesetappudu, but steel/iron adi vadinattu gurthu. ikkada 50lac cusec water discharge ayyetappudu a weight ki cement road kungada? yesterday engineers said that they taken some cement blocks for testing, they have verified quality of the works too and appreciated govt. stilling basin ki iron vadaru konni clippings chusanu. 

konda(rock) nu thavvi spill channel create chesaaru . concrete kindha rock vundhi. concrete pose mundhu bulldozer tho land ni chadunu chesthaaru . aa process lo land gattipaduthundhi.  daani meedha concrete vesthaaru. concrete has more compressive strength compare to tensile strength. it can bear very high stress. 

meeru cheppinatlugaa reinforce concrete vesthe inkaa manchidi. vaallaki entha stress paduthundhi ani calculations vuntaayi. ekkada avasaram ayithe akkada reinforce concrete vesthaaru. smooth gaa water flow ayye chotla stress takkuva vuntundhi . akkada normal concrete saripothundhi.

Edited by ravindras
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1 hour ago, Bollu said:

ninna observe chesanu concrete pouring in blocks, konni blocks lo gravel vesi posaru, konni emo thermal sheets esi posaru. kinda stell kani emi pettaledu. emi support lekunda antha strong ga ela utnado.

only water landing area lo steel tho concrete vestharu. You can see the same right infront of the gates as shown in the below pictures.

gates mundu edho landing ani vuntundi aa end lo konchem curve vasthundi - akkadi varaku concrete with steel vestharu - pic lo top left corner lo oka straight line laga vunnadhe (parallel to dam gates)

Here depth is also more - looks like they went down until they hit the rock.

ippudu vesindi antha - spill channel area 

 

Image result for polavaram dam design

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spill way gates lo 30 meters daka dig chesaru, stillbasin ki rough ga 6-8 feet tavvinattu kanapaduthunnayi by observing project reports. 2 ki steel petti dani meeda posaru. naku telisi spill channel lo hill only 1/4th cover ayiddi by observing report, may be rest of the area lo soil strong ga undemo. any how they know what they are doing.

plus winter lo a area lo entha temparature lo untayo? crackers avi rakunda chusukunte ade chalu. sraisailam ki aithe stilling basin badulu pedda bandarallu vadaru anta instead of concreting down, akkada ippudu afroon pool edo debba tinidni ani antunnaru. sagar ki kooda still basin ledu anukunta.

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I had been there recently. Spill way around 4km length and 1km wide lose soil most part of it, execpt where the water from gates land. Adi motham bottom rock vundhi so akkada concrete vesesaru.

Remaining lose soil tavvi, kindha konda rallu chips(big vi) vesthunnaru and dani paina concrete total filling. Blocks la split chesaru total spill way. Alternative blocks fill chesukuntu velthunnaru. Already fill aina block ki new block ki madhya thermocol peduthunnaru.

Spillway motham ee roju vesindhi kadhu. Oneset of blocks vesesaru most part already. Ee roju vesindhi motham remaining alternate blocks.

I got images of them in my mobile, but unable to attach here.

Edited by ravikia
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1 hour ago, Bollu said:

spill way gates lo 30 meters daka dig chesaru, stillbasin ki rough ga 6-8 feet tavvinattu kanapaduthunnayi by observing project reports. 2 ki steel petti dani meeda posaru. naku telisi spill channel lo hill only 1/4th cover ayiddi by observing report, may be rest of the area lo soil strong ga undemo. any how they know what they are doing.

plus winter lo a area lo entha temparature lo untayo? crackers avi rakunda chusukunte ade chalu. sraisailam ki aithe stilling basin badulu pedda bandarallu vadaru anta instead of concreting down, akkada ippudu afroon pool edo debba tinidni ani antunnaru. sagar ki kooda still basin ledu anukunta.

not just 6-8 ft

minimum  3 meters kindaki vellaru - depends on rock situation

 

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as per navayuga md sridhar,

Cofferdam lo 1.1 crore cubic meter of rock excavate cheyali, it will be another world record if we do that anta. plus concreting cheyali.

Still 15 lac cubic meters of concrete work cheyali . spill way & stillbasin (3.6 lacs), spill channel - 11 lacs.

Spill channel, left flank, pilot channel , approach channel earth excavation ne inka 1.8 crore cubic meter excavate cheyali.

48 gates petteseyali,

inni chesthe kani gravity dwara water release avuthayi that too right canal ke, left ki connectivities works chala unnayi. june 10th kalla e pani antha aipovali. e triveni gallu rates penchaledu ani sariga excavation cheyalekapothunnaru on parall ga with navayuga.

e transtroy asalu emi chesindo artham kavatam ledu e 4 years lo, triveni valle max matti tavvaru, daridrapu gottu vedavalu, idi navayuga ki icchi unte e patiki gravity dwara water vachhi undevi plus election kooda easy aipoyedi e 5 districts lo.

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11 minutes ago, Bollu said:

as per navayuga md sridhar,

Cofferdam lo 1.1 crore cubic meter of rock excavate cheyali, it will be another world record if we do that anta. plus concreting cheyali.

Still 15 lac cubic meters of concrete work cheyali . spill way & stillbasin (3.6 lacs), spill channel - 11 lacs.

Spill channel, left flank, pilot channel , approach channel earth excavation ne inka 1.8 crore cubic meter excavate cheyali.

48 gates petteseyali,

inni chesthe kani gravity dwara water release avuthayi that too right canal ke, left ki connectivities works chala unnayi. june 10th kalla e pani antha aipovali. e triveni gallu rates penchaledu ani sariga excavation cheyalekapothunnaru on parall ga with navayuga.

e transtroy asalu emi chesindo artham kavatam ledu e 4 years lo, triveni valle max matti tavvaru, daridrapu gottu vedavalu, idi navayuga ki icchi unte e patiki gravity dwara water vachhi undevi plus election kooda easy aipoyedi e 5 districts lo.

Cofferdam is more important. unless it is completed, we cannot divert water. the more this is delayed, this will impact the ECRF dam.

My guess is if cofferdam can be completed in time and spillway is completed to an extent, we can still continue works in spill basin and ECRF.

Hope we finish the above works before the last flood.

 

 

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6 hours ago, Bollu said:

as per navayuga md sridhar,

Cofferdam lo 1.1 crore cubic meter of rock excavate cheyali, it will be another world record if we do that anta. plus concreting cheyali.

Still 15 lac cubic meters of concrete work cheyali . spill way & stillbasin (3.6 lacs), spill channel - 11 lacs.

Spill channel, left flank, pilot channel , approach channel earth excavation ne inka 1.8 crore cubic meter excavate cheyali.

48 gates petteseyali,

inni chesthe kani gravity dwara water release avuthayi that too right canal ke, left ki connectivities works chala unnayi. june 10th kalla e pani antha aipovali. e triveni gallu rates penchaledu ani sariga excavation cheyalekapothunnaru on parall ga with navayuga.

e transtroy asalu emi chesindo artham kavatam ledu e 4 years lo, triveni valle max matti tavvaru, daridrapu gottu vedavalu, idi navayuga ki icchi unte e patiki gravity dwara water vachhi undevi plus election kooda easy aipoyedi e 5 districts lo.

triveni matti tavvadam march ki complete avvutundannaaru sridhar

Edited by ravindras
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