"1"^^ . "13" . "The technology of pipe laying by making use of the method of horizontal directional drilling with a high-pressure liquid and with backward laying (hereinafter HDD technology Horizontal Directional Drilling) has been considerably used in the Czech Republic in the course of the past few years. The article deals with the tractive forces applied to the PE pipes being laid and with functions of bentonite flushing in the HDD technology. The tractive forces have been measured in laboratories and assessed within a PhD thesis at STU in Bratislava. The measurement was performed on PE pipes of the company Pipe Life and with the bentonite of the company BDC Morava. At present there have been outlined the basic problems that may occur when pipes are laid by making use of the HDD technology." . . "Theoretical problems of pipe inserting by making use of the method of horizontal directional drilling" . . . "2" . . "HDD, horizontal directional drilling, friction coefficient, tangential stress, forces"@en . "SK - Slovensk\u00E1 republika" . . "6"^^ . "Acta Montanistica Slovaca" . . . "1335-1788" . "399821" . "[FA74079387E6]" . . "Theoretical problems of pipe inserting by making use of the method of horizontal directional drilling"@en . . "The technology of pipe laying by making use of the method of horizontal directional drilling with a high-pressure liquid and with backward laying (hereinafter HDD technology Horizontal Directional Drilling) has been considerably used in the Czech Republic in the course of the past few years. The article deals with the tractive forces applied to the PE pipes being laid and with functions of bentonite flushing in the HDD technology. The tractive forces have been measured in laboratories and assessed within a PhD thesis at STU in Bratislava. The measurement was performed on PE pipes of the company Pipe Life and with the bentonite of the company BDC Morava. At present there have been outlined the basic problems that may occur when pipes are laid by making use of the HDD technology."@en . . "Theoretical problems of pipe inserting by making use of the method of horizontal directional drilling" . "Theoretical problems of pipe inserting by making use of the method of horizontal directional drilling"@en . "Raclavsk\u00FD, Jaroslav" . . . . "P(ME 864)" . "1"^^ . "26110" . "RIV/00216305:26110/08:PU77968" . . . "RIV/00216305:26110/08:PU77968!RIV10-MSM-26110___" . . .