Super Elevation

👉🏿 Objective

To counteract the centrifugal force acting on the vehicle at circular curves.

👉🏿 Concept

Raise the road at the edge so the weight component vehicle balance the centrifugal acceleration and avoid the slipping and overturning or vehicle.

👉🏿 Equations


Rv = V²
g(fs + e)

Where : e= rate of super elevation
fs = coefficient of friction
R = radius of horizontal curve in meter
V = design speed in m/s
g= 9.81 m/s

#highway #superelevation

❓ስለዚህ super elevation ምን ትላላችሁ?

❓What do you say about this super elevation?

@etconp

Dynamic cone penetration penetrometer

➪ Dynamic cone penetration
penetrometer or DCP is a tool used
for evaluating the strength of soil on site.
➪ It also helps with monitoring the condition of granular layers and sub
grade soils in pavement section over time.

➪ It can be the right choice for site
with soft soil

➪ it is also applied when the CBR value of compacted soil sub-grade beneath the existing road pavement is to be determined. Continuous reading can be taken down to depth of 800mm or when an extension rod is fitted to be a depth up to 1200 mm.

➪ The DCP is simple and portable
instrument. It consists of hardened conical tip, standard diameter steel
rod , and standard weight hammer (8kg) , which is dropped from the top of the rod against an anvil to advance the tip into the ground.

#DCP #road #highway

@etconp

Super Elevation

👉🏿 Objective

To counteract the centrifugal force acting on the vehicle at circular curves.

👉🏿 Concept

Raise the road at the edge so the weight component vehicle balance the centrifugal acceleration and avoid the slipping and overturning or vehicle.

👉🏿 Equations


Rv = V²
g(fs + e)

Where : e= rate of super elevation
fs = coefficient of friction
R = radius of horizontal curve in meter
V = design speed in m/s
g= 9.81 m/s

#highway #superelevation

❓ስለዚህ super elevation ምን ትላላችሁ?

❓What do you say about this super elevation?

@etconp

Almonte river viaduct

The construction process of almonte river viaduct.

The bridge 🌉 construction began in July 2011GC and completion was reached at the end of 2016GC

➡️Length:- 996meters

➡️Main span :- 384meters

➡️Arch concrete C80/95(m3):-9.748

➡️Rest of structure concrete(m3):-44.351

➡️Reinforcement steel B500(t):- 7.255

➡️post tension steel (t):- 541

➡️ Temporary cable- stays steel:- 857

➡️Temporary tower steel(t):- 894

➡️ Retaining ground anchors(m):- 6.03

➡️ cost:- 41 million euros 💶

Service date:- November 2016


Madrid, Spain 🇪🇸

#bridge #viaduct #highway #railway
#almonte

Source:- Adif

ፋይሉ 5.9MB ስለሆነ WiFi ቢጠቀሙ ይመረጣል

@etconp

Quiz

1️⃣. A
2️⃣. B
3️⃣. C
4️⃣. D

#road #highway

@etconp

Facebook:- https://www.facebook.com/etconp/

Super Elevation

👉🏿 Objective

To counteract the centrifugal force acting on the vehicle at circular curves.

👉🏿 Concept

Raise the road at the edge so the weight component vehicle balance the centrifugal acceleration and avoid the slipping and overturning or vehicle.

👉🏿 Equations


Rv = V²
g(fs + e)

Where : e= rate of super elevation
fs = coefficient of friction
R = radius of horizontal curve in meter
V = design speed in m/s
g= 9.81 m/s

#highway #superelevation

❓ስለዚህ super elevation ምን ትላላችሁ?

❓What do you say about this super elevation?

@etconp

Super Elevation

👉🏿 Objective

To counteract the centrifugal force acting on the vehicle at circular curves.

👉🏿 Concept

Raise the road at the edge so the weight component vehicle balance the centrifugal acceleration and avoid the slipping and overturning or vehicle.

👉🏿 Equations


Rv = V²
g(fs + e)

Where : e= rate of super elevation
fs = coefficient of friction
R = radius of horizontal curve in meter
V = design speed in m/s
g= 9.81 m/s

#highway #superelevation

❓ስለዚህ super elevation ምን ትላላችሁ?

❓What do you say about this super elevation?

@etconp

👉እስቲ ስለ ኢሊቬሽን አለመንቶች ትንሽ እንይ

🚧ከርቮች ላይ ያለውን super elevation ፐርሰንት ካወቅን በኋላ ሱፐር ኢሊቬሽኑን ሙሉ ከርቩ ላይ ስለማናደርግ የት Station ላይ እንደሚገባና እንደሚወጣ ማወቅ አለብን፡፡

🚧በተጨማሪም ሙሉውን ያገኘነውን ፐርሰንት አንጠቀምም - መጀመሪያ ከዜሮ ይጀምርና ቀስ እያለ ሄዶ ሙሉ ሱፐር ኢሊቬሽን ይሆናል - የተወሰነ ርቀት ሙሉውን ከቀጠለ በኋላ እንደገና ቀሰ እያለ ወደ ዜሮ ይመለስና የኖርማል አስፓልቱን slope ይይዛል፡፡

🚧ካልኩሌት አድርገን ወይም ኤግል ፖይንት እራሱ ካልኩሌት አድርጎ እስቴሽኖቹን ማወቅ እንችላለን፡፡

🚧ያገኘናቸውንም እስቴሽኖች ሳይት ላይ ሱፐር ኢሊቬሽኑን ስናስቀምጥ እንጠቀምባቸዋለን፡፡

⭐️ኢለመንቶቹ በዛ ስለሚሉ እነዚህን እዚ ላይ መዘርዘር አስቸጋሪ ስለሆነ የተወሰኑትን በፎቶ ቀጣይ እናስቀምጥላቹዋለን ቀሪዎቹን ከERA Geometric Design Manual ላይ አንብቧቸው፡፡

📍ኤግል ፖይንት ላይ የምናስገባቸው SR, TR, X, Y ናቸው፡፡

#Highway

@etconp

👉Almonte river viaduct

🚧The construction process of almonte river viaduct.

🌟The bridge 🌉 construction began in July 2011GC and completion was reached at the end of 2016GC

➡️Length:- 996meters

➡️Main span :- 384meters

➡️Arch concrete C80/95(m3):-9.748

➡️Rest of structure concrete(m3):-44.351

➡️Reinforcement steel B500(t):- 7.255

➡️post tension steel (t):- 541

➡️ Temporary cable- stays steel:- 857

➡️Temporary tower steel(t):- 894

➡️ Retaining ground anchors(m):- 6.03

➡️ cost:- 41 million euros 💶

✨Service date:- November 2016

🖱Madrid, Spain 🇪🇸

#bridge #viaduct #highway #railway
#almonte

Source:- Adif

@etconp

Dynamic cone penetration penetrometer

➪ Dynamic cone penetration
penetrometer or DCP is a tool used
for evaluating the strength of soil on site.
➪ It also helps with monitoring the condition of granular layers and sub
grade soils in pavement section over time.

➪ It can be the right choice for site
with soft soil

➪ it is also applied when the CBR value of compacted soil sub-grade beneath the existing road pavement is to be determined. Continuous reading can be taken down to depth of 800mm or when an extension rod is fitted to be a depth up to 1200 mm.

➪ The DCP is simple and portable
instrument. It consists of hardened conical tip, standard diameter steel
rod , and standard weight hammer (8kg) , which is dropped from the top of the rod against an anvil to advance the tip into the ground.

#DCP #road #highway

@etconp