Effects of Timber Loads on Gross Vehicle Weight

Trzciński, Grzegorz; Sieniawski, Waldemar; Moskalik, Tadeusz

doi:10.2478/ffp-2013-0017

Cited by 10 publications

(7 citation statements)

References 5 publications

(2 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In reality, however, when transporting timber, the high variability of the transported assortments made of different species and the variable moisture content of wood do not allow a precise determination to be made of the weight of the transported raw wood material [23][24][25][26]. These differences very often influence the excessive weight of the truck unit [27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Total Weight and Axle Loads of Truck Units in the Transport of Timber Depending on the Timber Cargo

Trzciński

Moskalik

Wojtan

2018

Forests

Self Cite

View full text Add to dashboard Cite

When transporting timber, the high variability of species, assortments and moisture content of the wood raw material does not allow the weight of the transported timber to be precisely determined. This often contributes to the excessive weight loading of the entire truck unit. The aim of the research is to present the variability of the total weight of truck units with wood cargoes (GVW-gross vehicle weight) depending on the weight of the empty unit and the transported timber load, as well as to analyze the changes in GVW, unit loads of wood and load on individual truck unit axles depending on the season. This study analyzes the total weight of truck units for 376 transports of Scots pine timber at different times of the year. The total weight of the truck units depends on the weight of an empty unit and the weight of the load. GVW was determined by using a weighbridge to weigh the vehicles and then the empty unit after unloading. The weight of the load was obtained as the difference between GVW and the tare. It was found that GVW differed significantly depending on the truck unit used, ranging from 43.60-58.80 Mg, often exceeding permissible limits for public roads. The individual axle loads for various truck units were also analyzed. The obtained results indicate that these loads are more equally distributed in the case of five-axle trucks compared to six-axle ones.

show abstract

Section: Introductionmentioning

confidence: 99%

“…This presents a major transport challenge, both in terms of logging operations and its transport. In most cases, approximately 90% of the transport is conducted by vehicles using high-tonnage five-or six-axle truck units [25].…”

Section: Introductionmentioning

confidence: 99%

Total Weight and Axle Loads of Truck Units in the Transport of Timber Depending on the Timber Cargo

Trzciński

Moskalik

Wojtan

2018

Forests

Self Cite

View full text Add to dashboard Cite

show abstract

“…The size of wood chips may affect their arrangement and the filling of voids, and together with moisture content, it influences truckload weight. It should be remembered that forest roads with dirt or gravel surfaces have a limited load capacity and are not suitable for vehicles carrying heavy payloads (Trzciński et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Effects of Intentional Reduction in Moisture Content of Forest Wood Chips during Transport on Truckload Price

2018

Self Cite

View full text Add to dashboard Cite

Wood chip transportation is a widespread practice in Poland, with distances between forest sites and power or heating plants reaching 300 km and truck transport times of up to 6 h. Because the basic parameter affecting biomass quality for energy production is moisture content, the objective of the presented economic analysis was to determine its effect on the price of wood chips transported by semi-trailer trucks. This paper considered the possibility of drying biomass in the semi-trailer. No external energy consumption was envisioned; the heat needed for drying was obtained from the truck cooling or exhaust systems via heat exchangers. The moisture content of transported biomass had a dual effect on the final truckload price. While it increased biomass amount by adding to its weight, it decreased its price by lowering its calorific value. Mathematical analysis showed that a decrease in wood chip moisture content increased truckload price, justifying research on technological improvements of this process. Simulations indicated that by reducing moisture content during transportation, biomass suppliers increased their revenues approximately € 3.6 to € 30.0 per truckload, which translates into annual financial profit ranging from tens of thousands of euros (EUR) to more than € 23,810.

show abstract

“…Due to the fact that road surface loading with traffic is a gradual and long-term process, it was necessary to monitor the state of individual reinforcement technologies over a longer period (Cibonau et al 2012, Trcinski et al 2013. Three test sections with different types of reinforcement were constructed for the purposes of the research, and the deformation characteristics of the road reinforcement were monitored in each section by static load test according to standard ČSN 72 1006 -Compaction control of engineering fills (1998), tacheometric cross profile measurements were carried out to monitor the height changes of the cross profile shape and the number of fully loaded logging truck passages during measurement period were registered.…”

Section: Methodsmentioning

confidence: 99%

Recycled Asphalt as an Alternative to Natural Aggregates for Forest Road Reinforcement

Hrůza

Blahuta

Pelikán

et al. 2019

Croat. j. for. eng. (Online)

View full text Add to dashboard Cite

The objective of the present paper is to confirm or reject the possible use of recycled asphalt to reinforce forest haul roads regarding the technical requirements set by the standards and directives relevant to the construction of forest road surfaces. The hypothesis is based on the presumption that recycled materials, if correctly used, can reach the same construction properties as standard materials, hence their application does not have a negative effect on reinforcement quality. On a selected stretch of forest road, three test sections were constructed with the use of recycled asphalt, however, each of them with a different technological solution. The first section was reinforced with unbound mixture – Type1 without added water, the second section was constructed using a version of vibrated macadam technology, and recycled asphalt was applied to the third section by the method of basic compacting. In each of the sections, tacheometric cross profile measurement was carried out at monthly intervals to monitor the changes in the cross profile shape, and the number of passages of fully loaded logging trucks was registered; static load tests were performed at pre-defined time intervals to determine the deformation moduli such as deformation characteristics of the road surface structural layers. In all three reinforcement versions, the values of deformation moduli observed during the static load tests were between 68–90 % of the values set by relevant standards for these technologies using natural aggregates. However, the tacheometric measurements did not reveal statistically significant changes in the shape of the reinforcement cross-section. Based on the obtained results, applying recycled asphalt to reinforce forest roads seems to be a suitable alternative to natural quarry aggregate used in unbound structural layers. Recycled material needs to meet the regulatory limits for foreign elements and pass ecotoxicity tests, which is evidenced by a certificate on material compliance issued by the test laboratory.

show abstract

Effects of Timber Loads on Gross Vehicle Weight

Cited by 10 publications

References 5 publications

Total Weight and Axle Loads of Truck Units in the Transport of Timber Depending on the Timber Cargo

Total Weight and Axle Loads of Truck Units in the Transport of Timber Depending on the Timber Cargo

Effects of Intentional Reduction in Moisture Content of Forest Wood Chips during Transport on Truckload Price

Recycled Asphalt as an Alternative to Natural Aggregates for Forest Road Reinforcement

Contact Info

Product

Resources

About