SGR Construction in Tanzania - UPDATES
SGR Construction in Tanzania - UPDATES
- Thread starter Geza Ulole
- Start date
Papi Chulo
JF-Expert Member
- Jun 8, 2018
- 6,260
- 7,395
hakuna kitu mkuu,wewe ndo sleeping dog maana haiwezekani seeikali ilipe zaidi ya bil 10 kila mwezi kuwalipa wafanyakazi wa kichina,hapo hapo tena kuna taarifa inatoka kuna loss!!,only a mad can stand for these shits!
BlietzKrieg
JF-Expert Member
- Mar 9, 2017
- 2,882
- 2,263
Reli ya mchina iko 75% within a year.
Nashangaa mbona yenu inajikokota...tena ni less than a metre(vertical)
Chungeni isisombwe na mafuriko.
BlietzKrieg
JF-Expert Member
- Mar 9, 2017
- 2,882
- 2,263
Hii itasombwa na mafuriko.
Engineers size drainage based on many variables (e.g rainfall, area where the drains fetch water, character of the surface etc). One cannot over-design for fucks sake.
I understand Chinese do higher embankment in china due to frost and ice which cause heave on rail, but this do not apply in failed state kenya.
COWI designer is one of the best and with a lot of experience, so i trust they put all variable in consideration when doing civil design.
Geza Ulole
JF-Expert Member
- Oct 31, 2009
- 65,136
- 91,917
- Thread starter
- #726
Na mbona isisombwe mafuriko ya juzi? FYI Another layer will be built on top!
Kafrican
JF-Expert Member
- Jan 26, 2015
- 7,251
- 7,037
its not about frost or ice, In the US they build its just 0.6m abobe the surface and they have snow........ its of a standard way of buildning.... Chinese standard vs AREMA .... Chinese standard , the embankment is a standard of 2m above the ground while AREMA its 0.6m above ground which account for the the cheaper construction cost... building the rail high above ground means you future proof it against all kinds of stuff including flooding (drainage dont always work) especially during big natural disasters like elnino, also if the fence fails, the big animals like elephant, rhino, girraffs cant climb.... it also gives you more controll over the angle of elevation of the track...etc
eliakeem
JF-Expert Member
- May 29, 2009
- 17,214
- 15,853
Mlianza kwa kusema mkijenga mita moja tuwa tag. Mmeona imejengwa mmeanza kusema itasombwa na mafuliko. Sasa sijui tuwaeleweje?
Wivu utawaua.
Bantugbro
JF-Expert Member
- Feb 22, 2009
- 4,473
- 4,252
Wee Mkuu,
Kwa hio unataka kusema hio reli yenu sio SGR bali ni Chinese standard? if that is the case ina maana hiyo ni sawa tu na TAZARA?
You kenyans got bogged with standards and ended up with a stone age rail.
There's no way you can argue. Last time it rained, one of the section was failing.
The height of an embankment is not constant but is determined by engineers. You just copied chinese standards without reasoning why they use 2m 🙂
Failed state bure kabisa
Kafrican
JF-Expert Member
- Jan 26, 2015
- 7,251
- 7,037
eti there is no way I can argue... ...
Anyway, Typical tanzania way of argument.. based on rumors, heresy and not facts... last time it rained was this year, and it was the worst floods in 10 years and not one of the 472km of SGR line failed..... The incident you are talking about happened in 2016 when slop protection on parts of the sgr were not even done, the drainage too... if you go and take a look at the pictures that were taken you will see a chunk of the slop was still just bare sand with no slop protection...
if builng high emberkment was about snow railways in the whole of EU would be high above ground.. Russia has the 2nd largest rail network...and that country is half snow....but their rail is not high.
And as for the main point, your Rail is bieng designed to AREMA standards ... as as far as that is concered, its the most outdated standard of all the standards used by different countries.. Do you know how many KM of rail the Americans have built in the last 50years since you gained independence? infact, once Tz finishes building its SGR, you will have more electric rail than the US! Arema technology has not been updated in the last 70 years...
While on the otherhand, the chinese learnt how to build railways from the americans, they later took everything that Arema offeres and improved on the technology and improbed on it.... the chinese standard is actually safer, more robust and more durable than Arema... That is a scientific fact!
Kafrican
JF-Expert Member
- Jan 26, 2015
- 7,251
- 7,037
nyote mnaweza jenga Standard guage rail, lakini mkatumia ujenzi tofauti.... mmoja anaeza kuamua kuunganisha na bolt mwengine akaunganisha na rivet mwengine akachomelea kabisa chuma kishikane juu kwa juu... mwishowe kila mtu anakua na mbinu yake ya ujenzi ambayo anabidi wazipatie mbinu flani ya kujenga ili uwe unaweza kujenga tena kutumia mbinu hio hio hata kama engineer ni tofauti..
Geza Ulole
JF-Expert Member
- Oct 31, 2009
- 65,136
- 91,917
- Thread starter
- #734
Did u mean hearsay?
Geza Ulole
JF-Expert Member
- Oct 31, 2009
- 65,136
- 91,917
- Thread starter
- #735
NEW STANDARD GAUGE RAILWAY FROM DAR ES SALAAM TO MOROGORO, TANZANIA
A VALUABLE CONTRIBUTION TO TANZANIA'S FUTURE
For the first time in over 50 years, Tanzania's transnational railway is being modernised, and COWI is responsible for the design of a 207 km section running from Dar es Salaam to Morogoro. The modernisation is a valuable contribution to Tanzania's future development to meet an increasing demand for the transportation of passengers and improve the domestic supply network.
COWI is truly qualified to manage the complexity of the project due to its solid knowledge of Tanzania and extensive experience of delivering services in the country, including the design of more than 800 km railways for the Tanzanian Railway Authorities. The railway is planned to be operational in 2019.
PROJECT DETAILS
LOCATION:
Tanzania, Africa
PERIOD:
2017 - 2019
CLIENT:
Yapi Merkezi (Turkey) and Mota-Engil (Portugal)
COWI'S SERVICES:
- Topographical surveys and mapping
- Climatic, hydrological and hydraulic investigations
- Geotechnical, soils and materials investigations
- Operational plan studies
- Alignment detailed design
- Embankment, geotechnical and earthworks detailed design
- Viaduct and bridge detailed design
- Track works detailed design
- Roads detailed design
- Marshalling yard and depot detailed design
New standard gauge railway from Dar es Salaam to Morogoro
thisdayes
JF-Expert Member
- Oct 28, 2016
- 3,610
- 4,556
Kenya mmeyumba sana, kuna kamati ili undwa na Museveni kuangalia tofauti ya reli ili wa acha uchi! Findings ilionyesha hamna China grade 1 SGR hapa Africa. Mchina ame waingiza choo cha kike. China grade 1 speed yake si chini ya 350 km/hr.
Halafu sijawahi sikia mchina kaboresha kitu kutoka US au Ulaya kikawa bora. Tuishie kwa kusema sisi tuna i phone nyinyi mna itel
Geza Ulole
JF-Expert Member
- Oct 31, 2009
- 65,136
- 91,917
- Thread starter
- #738
Kafrican
JF-Expert Member
- Jan 26, 2015
- 7,251
- 7,037
Kila siku nawaambia Watz muache kutumia mafeelings mkijadiliana...kuweni watu wakutumia evidence, data, facts... si kuropokwa tu sababu unachukia Kenya. .. utakufa na stress bure... FYI, Museveni ali andika kazi rail consoltants kutoka Germany wafanye international benchmarking wakitumia Arema vs Chinies standards (GB) ili kujua ni reli aina gani inafaa geographia ya Uganda, kumbuka eneo ambalo Reli ya Uganda itapitia liko very swampy. FYI, walicompare reli za Kenya, Ethiopia na Tanzania..... na pia walicompare Chinese (GB) vs Arema rail specifications..
hizi hapa quotes from the report ambayo ni official report ya Uganda ministry of transport ambayo ndo ilipewa muzeveni asome kabla kuamua ni reli gani wajenge mwanzo : Central coriddor au Northern corridor. ....
--------Quoted from the report---------
It’s important to note that Chinese standards are an improvement of AREMA standards and are safer, robust and durable. This is explained further in this paper as we analyse the Dar Es Salaam Morogoro and the Malaba-Kampala proposed systems.
5. The AREMA standard is not a national standard but a standard of an association of some railways in North America while the Chinese Standard is a national standard approved and followed by the Government of China which today is building more lengths of railways in China than any other country in the world. More research and development has been done on these standards in the last 30 years because of the heavy investment in the railway by the Chinese Government.
6. The Chinese Standards were engineered from AREMA and other standards and are much safer, robust, and durable. As illustrated later in this paper, the formation width of the Chinese standards is 7.7 Metres compared to 6.6 Metres of AREMA, the minimum height of embankment is 2.5 Metres high for Chinese standards while AREMA is 0.64 Metres. The requirements for protection of the embankments in Chinese is strictly by concrete hellingbone structure and stone masonry and even the construction of the embankments and the soil treatment mechanisms are more stringent with the Chinese standard than AREMA. This is simply because the Chinese standard targets low operation and maintenance costs than AREMA over the life of the project
Kafrican
JF-Expert Member
- Jan 26, 2015
- 7,251
- 7,037
More from the report:
The importance of the Northern route is further augmented by the already much bigger trade between Kenya and Uganda which is over USD 1bn.
Despite development of the railway, cargo capacity on the central corridor will be severely limited by the constraints on Lake Victoria, notably, each wagon ferry/vessel carries 44 containers whereas a train can carry up to 216 containers. Therefore, each train can only be offloaded onto five vessels requiring about 15 hours to load and offload the vessels on either side of the lake thus significantly increasing the transit time and cost.
This cargo capacity limitation, distance from the port, size and depth of the port and lake, and restrictions on carrying oils and chemicals on fresh water, makes it important that the central corridor is planned as an alternative to the northern corridor which should be taken as a primary route.
For the Malaba-Kampala SGR, up to 40 trains can be operated in a day transporting 8460 containers. If such amount of Cargo was going to be transported on the lake, assuming that a massive of five wagon ferries are purchased, we would require 40 days to evacuate cargo of one train. This means that the route not be viable. This coupled with the fact that oil products cannot be transported on fresh water make the Dar Es Salaam Mwanza Kampala Route can only be a minor alternative to the Mombasa-Kampala Route which should be looked at as the bark born of the railway network to the sea.
The importance of the Northern route is further augmented by the already much bigger trade between Kenya and Uganda which is over USD 1bn.
Despite development of the railway, cargo capacity on the central corridor will be severely limited by the constraints on Lake Victoria, notably, each wagon ferry/vessel carries 44 containers whereas a train can carry up to 216 containers. Therefore, each train can only be offloaded onto five vessels requiring about 15 hours to load and offload the vessels on either side of the lake thus significantly increasing the transit time and cost.
This cargo capacity limitation, distance from the port, size and depth of the port and lake, and restrictions on carrying oils and chemicals on fresh water, makes it important that the central corridor is planned as an alternative to the northern corridor which should be taken as a primary route.
For the Malaba-Kampala SGR, up to 40 trains can be operated in a day transporting 8460 containers. If such amount of Cargo was going to be transported on the lake, assuming that a massive of five wagon ferries are purchased, we would require 40 days to evacuate cargo of one train. This means that the route not be viable. This coupled with the fact that oil products cannot be transported on fresh water make the Dar Es Salaam Mwanza Kampala Route can only be a minor alternative to the Mombasa-Kampala Route which should be looked at as the bark born of the railway network to the sea.