Conclusions
1. The pile-driving accuracy affects substantially the driving cost. For this reason it is necessary to take into account the requirements placed on the driving a ccuracy in the design solutions for pile foundations.
2. Extremely rigid requirements should not be placed on the pile-driving accuracy, since they result in a considerable increase in the cost of the pile-driving work. The pile-driving accuracy should be determined from the constructional solutions for the pile foundations. For example, for cast-in-place caps, precast caps, capless pile foundations, and pile-columns, the requirements placed on the pile-driving accuracy should differ. Also, a high pile-driving accuracy over the needed requirements for the subsequent erection of the constructional elements should not be specified.
3. It is recommended that the construction organizations in charge of pile-driving work have at their disposal pile-driving machines permitting the driving of piles within a wide range of tolerances.
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Literature cited
M. Ya. Egnus, A. L. Levinzon, and K. N. Kondyrev, "Relation between output of pile-driving installations and required pile-driving accuracy," Mekhanizatsiya Stroitel'stva, No. 7 (1972).
L. I. Blank, Determination of the Economic Effectiveness of the Means for Mechanization of Construction Work [in Russian], Stroiizdat, Moscow (1969).
S. E. Kantorer, Methods for Substantiation of the Effectiveness of the Use of Machines in the Construction Field [in Russian], Gostroiizdat, Moscow (1961).
Additional information
Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 5, pp. 23–25, September–October, 1974.
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Kondyrev, K.N., Gerasimov, V.V. & Kalinina, I.E. Economic evaluation of the accuracy in the operation of pile driving-machines. Soil Mech Found Eng 11, 311–314 (1974). https://doi.org/10.1007/BF01705570
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DOI: https://doi.org/10.1007/BF01705570