Simulation test on blasting effect of the bedding rock with intercalation
Abstract：The bedding rock with intercalation for bench blasting model is made by limestone mine clay which embedded in precast cement mortar models.Blasting model test of bedding rock with intercalation were carried out under different blasting conditions.The test results show that the intercalation after blasting is divided into four regions：blasting cavity region,tightness region,affected region and undisturbed region.The blasting cavity region,tightness region,affected region constitute the lamination region.Tightness density increases first and then decreases with source distance,and finally reduces to the density before blasting.The lamination range of the model increases with the increase of intercaltion water content,source distance and explosive dosage.And the lamination range increases at first,and then decreases with the increase of intercalation thickness.The experiment which the explosive cartridge is located at different positions proved that different charge locations in the blast hole can reduce or overcome lamination effect of the bedding rock with intercalation.
Keywords：weak intercalationslope blastingblasting conditionssound wave detectionlamination range
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 389-395 )