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Hello everyone! Can you tell me where I can find guidelines for manual calculation of the rain garden? Thanks!

Thank you! I'll try it!

I understand this. I wanted to hear the names of the programs that implement this in the most convenient way. For example, I set the frame , set the material (which is already packed into the program ), applied loads, and after analyzing the program gave me the optimal cross sections, stresses...

Hello everybody! I have a question. What programs do you use to calculate wooden structures? For example, such as a three-hinged arch made of glulam?

Thank you for your answer. I'm interested in slopes for sewer networks. I know about the minimum slopes and the fact that they are regulated by the minimum speeds that prevent the formation of sediment in the pipeline. But I'm not interested in the minimum biases, I'm interested in the biases...

Thank you for your answer. I'm interested in slopes for sewer networks. I know about the minimum slopes and the fact that they are regulated by the minimum speeds that prevent the formation of sediment in the pipeline. But I'm not interested in the minimum biases, I'm interested in the biases...

Hello! 1. I would like to ask a question about the slopes that are used in the hydraulic calculation of rainwater networks. As far as I understand, the estimated bias of the rainwater drainage network can be accepted by anyone, provided that it provides Vfull>Vmin and Qfull>Qdes For example...

To get a runoff coefficient for an area with a variety of items, perform a weighted average based upon the land use types. For example, if your watershed consists of 65% High-density Residential, 5% park (Open Space), 25% commercial and 5% interstate; the runoff coefficient would be the...

Thank you for your detailed and very thorough answer! Now I understand everything about the runoff coefficient. 1. I would also like to ask a question about the slopes that are used in the hydraulic calculation of rainwater networks. As far as I understand, the estimated bias of the rainwater...

Thank you very much, I understood your explanation. But I had one last question: the runoff coefficient for commercial and residential areas is different, although the hydrological group is the same (for example hydrological group A in the fourth column)???

Unfortunately, I did not understand your determination of the runoff coefficient. Let's look at a specific example. For example, there are street, green spaces and high-density residential development in watershed area. The runoff coefficient for the street (asphalt pavement) is (0.7-0.95), what...

Please explain what the parameter "Percent Impervious Area" means and how to use it when calculating the runoff coefficient? Why do the values of runoff coefficients for different soil groups (A,B,C,D) differ depending on the land use? Please give an example of calculating the runoff coefficient...

When performing a hydraulic calculation using a rational method, the following question arises: How much can Qfull and Qdes differ? For correct hydraulic calculation, it is necessary that the Vfull≥Vmin. if this condition is not met, how to adjust the slope. Is there any table of normative...

Where can I read about the influence of rainfall on operation of combined sewer system and storm sewer system?

Thanks, now I got it. Here in Russia, we take ground cover not for top of the pipe, but for invert level, and it confused me a little.

Thanks a lot, it seems that there is a mistake in the book.

Hydrauliс Design of Storm Sewers says that ground cover for sewer pipe should count like this: surface elevation minus invert elevation minus pipe diameter. So, is ground cover a difference of surface elevation and top of the pipe, or difference of surface elevation and invert elevation? If...