Abstract Based on the theory of leveling error，the calculating formulas for the increment of lateral penetrating accuracy by the layout of ground and underground single guide lines added with spinning top rakes are derived strictly. The simplified and practical calculating formulas which may be solved on computer are also obtained. Applying these formulas, the optimal layout of the spinning top rakes and its strict evaluation results on lateral penetration may be obtained easyly. It is valuable as refer?ence for the design and calculation of tunnel control by the layout of ground and underground guide lines added with the spinning top rakes.
HE Guohong. RESEARCH ON TUNNEL CONTROL BY LAYOUT OF GUIDE LINE ADDED WITH SPINNING TOP RAKE[J]. Journal of Railway Engineering Society, 1999, 16(1): 54-60.
1999, Vol. 16 
