доктор технических наук, доцент А. Д. Платонов 1 старший преподаватель, М. А. Михеевская 2 кандидат биологических наук, доцент С. Н. Снегирева 1 кандидат технических наук, доцент Т. К. Курьянова 1 кандидат биологических наук, доцент А. В. Киселева 1 директор УОЛ, А.Н. Топчеев 3 Деревопереработка.
УДК 630.812:630.43 ПОЛУЧЕНИЕ ШПАЛ С ЗАДАННЫМИ ПОКАЗАТЕЛЯМИ КАЧЕСТВА ИЗ ПРЕССОВАННОЙ ДРЕВЕСИНЫ БЕРЕЗЫ доктор технических наук, доцент А. Д. Платонов 1 М. А. Михеевская 2 кандидат технических наук, доцент Т. К. Курьянова 1 кандидат биологических наук, доцент С. Н. Снегирева 1 доктор технических наук, профессор А. О. Сафонов 1 доктор технических наук, профессор Н. В. Мозговой 3 1-ФГБОУ ВО «Воронежский государственный лесотехнический университет имени Г.Ф. Морозова», г. Воронеж, Российская Федерация 2-ФГБОУ ВО «Ухтинский государственный технический университет», г. Ухта, Российская Федерация 3-ФГБОУ ВО «Воронежский государственный технический университет», г. Воронеж, Российская Федерация Основным недостатком деревянных шпал является малый срок службы по сравнению со шпалами, изготовленными из других материалов. Большое влияние на срок службы и качество деревянных шпал оказывают порода древесины и качество пропитки антисептическими составами. Наибольшее распространение при производстве шпал получила древесина сосны. В настоящее время запасы данной древесной породы в европейской части РФ сильно истощены и на рынке присутствует нехватка сырья, удовлетворяющего требованиям стандартов, предъявляемым к лесоматериа
The article describes a method of dynamic analysis of pavement bodies of timber road Ukhta – Troitsky-Pechorsk, a forecast of full sinkage and consolidation time of the subsoil. Reinforcing gravel with geogrids increases the overall (equivalent) elastic modulus of structure for 6…15 %, reduces the magnitude of the tangential stress in the layer, underlying the geogrid by 25…80 %, increases the modulus of defor-mation with significant precipitation more than in 2 times.
The element of the upper structure of the railway track are sleepers, which are made mainly of wood. Wooden sleepers from natural wood have a number of disadvantages. Reduce the disadvantages of sleepers made of natural wood is possible if their manufacture to use modified wood myag-kih hardwood, which by pressing will exceed the strength of the sleepers made of natural Dre-spring and its physical and mechanical characteristics is not inferior to the sleepers made of natural coniferous wood. However, one of the disadvantages of modified wood is its ability to change the size and shape with increasing humidity. Therefore, there is a need to create a new high-tech re-surdobarokamere the production of railway sleepers of the modified wood with improved ex-operational characteristics (durability, bio-logical stability, dimensional stability, wear resistance), exceeding the existing production. To increase the service life of wooden sleepers, increase their biostability and dimensional stability, raw materials for the production of sleepers must be impregnated with the composition of antiseptic and stabilizer, i.e. to conduct thermomechanical modification of wood. As raw materials it is possible to use wood of soft deciduous breeds of a birch and an aspen. Depending on the degree of pressing the sleepers of these species will exceed the strength of the sleepers of pine wood. But at the same time all properties of wood remain (damper, dielectric and others). Development of wood modification technology is possible on the basis of analysis of physical phenomena underlying technological operations. With this purpose, the theoretically calculated curves of heating of the billet in the section of the oily liquid, made on the basis of similarity criteria and on the basis of the physical phenomena of heat and mass transfer calculated duration of drying preparations. Accepted methods of impregnation, loading and relieving of the pressure during compaction
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.