For citations:

Samarin D.G., Ustyuzhanin V.L., Lobanov A.A. Acoustic measurements of bored pile length using two channels. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2020;22(4):180-191. (In Russ.) https://doi.org/10.31675/1607-1859-2020-22-4-180-191