Rouhollah Basirat

14 Questions 69 Answers 0 Followers

Questions related from Rouhollah Basirat

Is there any software for designing blasting pattern in tunnel?

Hi everyone! How we can design the blasting pattern for underground spaces? Is it different for large cross section tunnels (2 stages excavation or sequential stages)? Is there any software for...

28 August 2017 2,384 14 View

How we can scale the result of experimental tests to field for simulating in large scale?

Hi everyone! I have a problem for simulating the reservoir condition in real scale. It can be use the result of experimental tests to large scale? How we can scale the laboratory results of rock...

08 March 2017 9,728 5 View

Do you have any specification for a real mechanized tunnelling (TBM)?

Hi everyone! There are some guidelines for the use of specialist products for mechanized tunnelling (TBM) such as ITA report on April 2016 and EFNARC on April 2005 but they are not completed. Do...

02 November 2016 9,665 4 View

What is the solution for passing TBM from fault zone in hard rock?

Hi everyone! What is the best solution for passing TBM from fault zone in hard rock when we have a single shield machine? If we have a different machine, how is the condition? If the condition is...

20 October 2016 441 11 View

What are the instrumentation in the mechanized tunnel excavation (TBM)?

Hi everyone! I’ve worked and designed on the conventional tunnels such as NATM. But, in this time I’m beginning about excavation with TBM and I want know about the instrument in these tunnel. Is...

27 September 2016 6,158 3 View

Is there any classification for selecting the best TBM based on the project characterizes?

Hi everyone! There are some methods for selecting a proper TBM based on the geological conditions. These methods are proposed by RMR, QTBM, and etc. Is there any method for selecting the best TBM...

26 September 2016 9,024 4 View

Which step should be considered for consolidation settlement?

Hi everyone! There are some step in the consolidation test of clay soil. For every step, a different coefficient of consolidation (Cv), one-dimensional compressibility (mv), and permeability (k)...

18 September 2016 3,106 6 View

How much is the safety factor for slopes?

Hi everyone! The safety factor is a factor for checking the results. How much is the safety factor for different slopes based on different standards or guidelines such as UIC, British standard,...

13 September 2016 5,854 3 View

Is there any liquefaction potential in the depth?

Hi everyone! Some researchers believe that in the depth (more than 15 meters) there is no liquefaction potential for sand layers. Is it true? Is there any example and reference? And is there any...

11 September 2016 2,332 21 View

What are the disadvantages of deep soil mixing?

Hi everyone! Deep soil mixing is one of the methods for improving poor soils. I’m working on a project related to improving poor soils and I’ve searched a lot about this techniques. Some...

11 September 2016 9,644 14 View

What is the safety level and design requirement in railway tunnels?

Hi everyone Is there any definition of safety level for railway tunnels including fire system, alignment system, rescue tunnel, and etc for railway tunnels? What are safety levels for design of...

10 September 2016 2,693 7 View

Has anyone some detail about designing of tunnel segmental lining?

Hi everyone The important items in sgmental lining are as follow: - estimation of different loads and applying them - shape for different situation - gasket design - reinforcement design I need...

06 September 2016 9,344 6 View

Does anyone have any information about the high speed railway tunnel design?

I'm working on the design of high speed railway tunnel in these days. I need any information about the design of these tunnels, cross section of tunnel, standards andguidlines, design...

09 August 2016 5,176 8 View

How calculate the stress intensity factor (KI and KII) in numerical software?

Hi everyone! How we can calculate the stress intensity factor (KI and KII) in numerical software such as FLAC, UDEC or any software except Abacus (I mean Integral J)? There are some equations for...

12 July 2016 4,266 9 View