Question: What is the best example of civilian fortifications extending the effectiveness of the Russian military?
About the article "Battle of Moscow", section "Mozhaisk defense line (13 – 30 October)".

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Fortifications vary widely in nature depending on the mission and type of unit engaged. 
Some tunnels are not for transport at all but rather, are fortifications, for example Mittelwerk and Cheyenne Mountain.
Excavation techniques, as well as the construction of underground bunkers and other habitable areas, are often associated with military use during armed conflict, or civilian responses to threat of attack.
One of the strangest uses of a tunnel was for the storage of chemical weapons [http://www.mustardgas.org]. 
Kosmos 2467 ( meaning "Cosmos 2467") is one of a pair of Russian military communications satellites which were launched in 2010 by the Russian Space Forces.
It was launched with Kosmos 2468 and a Gonets-M civilian communication satellite. 
In total, the University prepared more than 45,000 military engineers.
He is best known as the inventor of the Maksutov telescope.
Alexander Lukomsky, a Russian military commander, General Staff, Lieutenant-General () who fought for the Imperial Russian Army during the First World War and was one of the organizers of the Volunteer army during the Russian Civil War.
Vladimir May-Mayevsky, a Russian army general and one of the leaders of the counterrevolutionary White movement during the Russian Civil War  Dmitri Mendeleev, a Russian chemist and inventor, credited as the creator of the periodic table of elements  Boris Mozhaev (Russian: Можаев, Борис Андреевич), a Russian writer and friend Aleksandr Solzhenitsyn  Grand Duke Nicholas Nikolaevich of Russia (1856–1929)  Mikhail Vasilievich Ostrogradsky, a Russian mathematician, mechanician and physicist who is considered to be a disciple of Leonhard Euler and one of the leading mathematicians of Imperial Russia  Nicholas Petin (Russian: Петин, Николай Николаевич), a Red Army general, chief of engineers of Red Army  Alexei Polivanov, a Russian military figure  Ivan Sechenov, a Russian physiologist, named by Ivan Pavlov as "The Father of Russian physiology", who authored "Reflexes of the Brain", introducing electrophysiology and neurophysiology into laboratories and teaching of medicine  Aleksey Shvarct, a Lieutenant General, governor of Odessa  Eduard Totleben, a military engineer and Imperial Russian Army general who was in charge of fortification and sapping work during a number of important Russian military campaigns  Baron Peter von Uslar a Russian general, engineer and linguist of German descent, known for his research of languages and ethnography of peoples of Caucasus.
Pavel Yablochkov, a Russian electrical engineer, the inventor of the Yablochkov candle (a type of electric carbon arc lamp) and a businessman  Shuliachenko Aleksey Romanovich (Russian: Шуляченко, Алексей Романович), a Russian engineer, general and chemist, known as the "grandfather of the Russian Cement"  Golovin Kharlampiy Sergeevich (Russian: Головин, Харлампий Сергеевич), a rector of Saint Petersburg State Institute of Technology  Nestor Buinitsky (Russian: Буйницкий, Нестор Алоизиевич), a Russian engineer, professor of fortification and Lieutenant General.  
Nestor Aloizevich Buinitsky was born in Saint Petersburg, Russian Empire, he studied at the 2nd Saint Petersburg Military School, and became a military engineer, after graduating from the Military Engineering-Technical University in 1889.
He served as a military engineer at the Osowiec Fortress, where he would help in the construction of fortification buildings for four years.
In 1893 Buinitsky began to teach about fortification in a native university, and became a professor.
He co-operated with the "Engineering Magazine", "Military Collection", "Artillery Magazine", "Encyclopaedic Dictionary" of Brokgauz-Efron, "Encyclopaedia of Military and Marine Sciences", and the "Military Encyclopaedia".
In 1909, he became a member of the engineering committee, supervising creation of fortresses.
His advanced studies have large value for the development of Russian fortifications, for example he was the supporter of the creation of integrated systems of fortifications.
Buinitsky was known as a phenomenal expert on fortification, but he was also a talented writer.
Buinitsky died in December, 1914.