Robert Cummings, P.E. - Construction & Contractors - Votech Education - Education

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Expert Profile: Robert Cummings, P.E.

Expertise: I can answer questions related to rock blasting, rock and soil excavation (such as tunnels and highway cuts), stability of such excavations, and foundations in rock and soil. I can also answer questions related to geology and mining.

Experience in the area
20+ years as a geotechnical engineer and minerals engineer for mining. Active consulting practice in rock blasting, geotechnical engineering, and rock mechanics for heavy construction.

Organizations
Society of Mining Engineers, Association of Engineering Geologists, and International Society of Explosives Engineers.

Publications
Mining Engineering, AEG Bulletin.

Education/Credentials
MS Geological Engineering

Ask a Question	View Past Answers	View Ratings

Average Ratings
Prestige Points: 2240
Knowledge	9.88 Best of the best
Clarity of Response	9.93 Best of the best
Timeliness	9.90 Best of the best
Politeness	9.97 Best of the best
Number Of Questions (in Past 24 Hours)		0
Max Questions to be Asked (in 24 Hour period)		5
Total Questions (since joining AllExperts)		212

Recent Reviews from Users

Knowl	Clarity	Time	Politeness	Date
10	10	10	10	09/21/08
10	10	10	10	09/12/08
10	10	10	10	09/08/08
10	10	10	10	08/28/08
10	10	10	10	08/20/08

User Comments

This expert is very knowledgeable and able to explain clearly and thoroughly. He is one of the best experts on all experts, and the best expert one ca
(Thomas on 09/21/08)

Thanks a heap Robert. Ben
(Ben on 09/12/08)

Thanks for your quick and thorough reply.
(Vicky on 09/08/08)

Thank you very much! all above ratings are 10 The geotech has been contacted Maybe we will get back to you again when we see the result. ct
(chris on 08/28/08)

Thx - this looks like a good starting point.
(Michael on 08/20/08)

View All Comments

Ask a Question	View Past Answers	View Ratings

Recent Answers from Robert Cummings, P.E.

2008-10-01 trencing with boulder buster: When you say 1.5 meter trench I assume you are talking about the depth, not the width because you are only laying pipe. That impacts the width of the drilling pattern. In most cases you would need a...

2008-09-21 concrete porch: Do not add new concrete unless the surface it is to bond to is clean concrete and treated with a concrete etching solution. Concrete does all kinds of things as it cures and dries and I would not count...

2008-09-20 Retaining wall: Thank you for the photographs. It gives me a much better idea of what you are dealing with. Apparently, the retaining wall must have been constructed with reliance on the timber stringers (those displaying...

2008-09-20 ledge blasting: That all depends on the hardness of the rock, the prevalence of fracturing, and the intensity of the water jet. If the rock is hard enough that blasting is contemplated, water jet usage is going to be...

2008-09-12 Groundwater control: You may be misinterpreting the geotechnical recommendations. My guess is that the sheet piling was recommended to exclude the ground water during construction. It would be very unusual to leave sheet...

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