lateral force design for a retaining wall. 2

[SNC STRUCTURAL]

Is there anyone consider a hydraulic force when design a retaining wall for general practice.

 

[SNC STRUCTURAL]

phamENG,
I believe you always has good wish and make time easy to go.
In that case, there are life activities on top of slope.
That means water main, sewage, gas pipe servicing public.
It is not just rain fall condition need to concern, urban service failure also a concern.
If we not design it appropriately, the fixing cost will a huge money.
Those money will take from our pocket.

 

[BridgeSmith]

SNC STRUCTURAL, are you a geotechnical or structural engineer? Do you have the qualifications and expertise to be second-guessing the licensed engineer who designed this retaining wall? If you are and you do, then take your concerns to the design engineer. When you've at least attempted to do that, let us know what the outcome was, and we'll go from there.

Rod Smith, P.E., The artist formerly known as HotRod10

 

[r13]

Rod,

I would say he's a technician working in the same office as the designer (an engineer), as he does have first hand information on the design, but having very limit understanding on engineering principles.

 

[SNC STRUCTURAL]

No, I have read all the report and design brief. I still have the copy in case put it on court.
As a good citizen and a professional, I need to report something not safe for public.
Thee are a lot of building misconduct, like main street station, everyday so many professional pass that station.
No one even see the steel tie rod for the station structure is not straight tie to the member.
As a professional, you and me all know this is a defect. But, when project is finished and why the inspector let it go. OMG

 

[miningman]

Bridge, at the risk of being accused of political incorrectness, seems to me that the OP's command of the english language is so weak , he doesn't understand , or perhaps doesn't want to understand your emphatic and pragmatic suggestions.

 

[BridgeSmith]

No, I have read all the report and design brief.

Until you have read and understood the full design, you are giving an uniformed opinion.

As a good citizen and a professional...

Professional what? Engineer? Chef? What kind of professional are you?

I need to report something not safe for public.

Then report it to the engineer who designed it.

After you have done that, if the Professional Engineer is not convinced there is a problem, and in your judgment as a Professional Engineer (if you are a licensed P.E.), you still believe there is a problem, then there are other steps that can be taken.

If you are not a P.E., then your duty as a "good citizen" is satisfied by bringing it to the attention of the design engineer, as you are not qualified to say that the engineer is wrong.

Rod Smith, P.E., The artist formerly known as HotRod10

 

[BridgeSmith]

You are probably right, miningman, but I couldn't resist trying one more time.

Rod Smith, P.E., The artist formerly known as HotRod10

 

[SNC STRUCTURAL]

Rod,
I never said the design is wrong.
It just a not well consider design and have a chance to create problem.
Debate is to find out the true not argument.
Do you agree the professional is not happy to question about other one's design.
This is the culture and leading the industry to worst day to day.

 

[SNC STRUCTURAL]

Miningman,
Your expertise is in mining.
I understand the structural requirement is difference with a Urban structure design.
Debate is not just a finger pointing.

 

[phamENG]

So...have you brought this up to the design engineer yet? What did he/she say?

 

[miningman]

Well I dont suppose it helps anyone who is blind to the obvious , but I have designed and constructed underground structures
to successfully withstand over 200 meters of hydrostatic head. Many dozens of miners work below these structures so in the event of a failure, it's not the theoretical possibility of a train derailment , its the absolute certainty of loss of life. You are dealing with what , less than 10 metres of hydrostatic head??? I probably know more about these matters than you ever will!!!!

 

[BridgeSmith]

I never said the design is wrong.

Then you have nothing to report. Either the wall is adequate for the required design loads, per the governing code, or it isn't.

It just a not well consider design and have a chance to create problem.

In your "professional" opinion. However, so far we have no idea whether your opinion means anything, because you haven't told us what your qualifications are.

Debate is to find out the true not argument.

Thus far, there is nothing to debate. You have not posted any calculations or details showing why you believe the wall design is inadequate.

Do you agree the professional is not happy to question about other one's design.

I believe a qualified professional engineer is allowed to question another engineer about their design. Have you done that?



Rod Smith, P.E., The artist formerly known as HotRod10

 

[r13]

Maybe we shall invite someone in the structural group of SNC-Lavalin to join this conservation to defend their reputation

 

[phamENG]

I think it's interesting that they have a dedicated portal for this sort of thing. It's right there on their website...

Link

 

[SNC STRUCTURAL]

You still trust them???

 

[r13]

Dear SNC STRUCTURE,

Do not mean to criticize your act, but after more than 30 posts, you still haven't been able provide us with a single photo, that depicts either the distress of the structure, or the problem (excessive running water, soil erosion/collapsing..etc) of tangible concerns; nor did you provide us a sketch that highlighting the loads/forces that you thought likely to occur behind the wall, and potentially causing the instability of the structure, the rail tracks, and the inlet structure, as claimed. It is highly unlikely you will gain any support from here, as you are losing your credential by lacking creditable evidence, and professional integrity.

 

[BridgeSmith]

You still trust them???

I assume you're referring to SNC-Lavalin Structural Group. Why should we distrust them? Because some person with unknown qualifications, who hasn't shown us any evidence, claims one of their designs may be inadequate?

SNC STRUCTURAL, you're sounding more and more like an employee (or ex-employee) who is angry with them for some reason and looking for a way hurt them. If that's the case, you should give it up and walk away. You'll only hurt yourself by continuing this vendetta.

Rod Smith, P.E., The artist formerly known as HotRod10

 

[atrizzy]

I used to work at SNC in Vancouver and would be extremely surprised if something as obvious as this failed to get caught in one of the many independent checking stages required by company policy. Not to say that it's impossible, but I would certainly be surprised.

 

[SNC STRUCTURAL]

Rod,
I don't think you read all the news about the company.
Too bad!!

 

[BridgeSmith]

I don't think you read all the news about the company.

Ok, now's your chance to enlighten me. Please post some of the news stories you referred to.

Rod Smith, P.E., The artist formerly known as HotRod10