SAFETY OF BUILDING SYSTEMS. ECOLOGICAL PROBLEMS OF CONSTRUCTION PROJECTS. GEOECOLOGY

optimization for trenchless reconstruction of pipelines

Vestnik MGSU 1/2015
  • Zhmakov Gennadiy Nikolaevich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Professor, Department of Water Disposal and Water Ecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe Shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Aleksandr Anatol’evich - Siberian Federal University (SibFU) Candidate of Technical Sciences, Associate Professor, Department of Mechanical Engineering, Siberian Federal University (SibFU), 79 Svobodny pr., Krasnoyarsk, 660041, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 63-73

Today the technologies of trenchless reconstruction of pipelines are becoming
more and more widely used in Russia and abroad. One of the most perspective is methods is shock-free destruction of the old pipeline being replaced with the help of hydraulic installations with working mechanism representing a cutting unit with knife disks and a conic expander. A construction of a working mechanism, which allows making trenchless reconstruction of pipelines of different diameters, is optimized and patented and its developmental prototype is manufactured. The dependence of pipeline cutting force from knifes obtusion of the working mechanisms. The cutting force of old steel pipelines with obtuse knife increases proportional to the value of its obtusion. Two stands for endurance tests of the knifes in laboratory environment are offered and patented.

DOI: 10.22227/1997-0935.2015.1.63-73

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