Specifics of engineering support for installation of bored piles in cluttered urban settings

Heavy duty of drilling equipment places high demands on modes of operation, loads, fuel and lubricants. Physical-chemical properties of oils change significantly faster than equipment failure occurs. With the development of pre-failure condition in equipment, the content of wear products in oil of t...

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Bibliographic Details
Published inGeotechnics Fundamentals and Applications in Construction pp. 216 - 219
Main Authors Osokin, A.I., Ermolaev, V.A., Kuzhelev, A.I.
Format Book Chapter
LanguageEnglish
Published United Kingdom CRC Press 2019
Taylor & Francis Group
Edition1
Subjects
Construction Drilling
CFA Pile
Bored Piles
Metal Inclusions
Wear Products
Drilling Equipment
Thermoelectric Thermometer
Friction Coupling
Piled Raft Foundation
Reduction Gear Unit
Drilling Machines
Dense
EGT
Total Downtime
Drilling Machinery
Gear Case
Wear Degree
Pre-failure Condition
Pile Installation
Oil Temperature Increase
Aboveground
Moisture Content
Emf
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Summary:Heavy duty of drilling equipment places high demands on modes of operation, loads, fuel and lubricants. Physical-chemical properties of oils change significantly faster than equipment failure occurs. With the development of pre-failure condition in equipment, the content of wear products in oil of the reduction gear unit and oil temperature increase dramatically. Downtime of drilling machines due to failures and faults of main assemblies (reduction gear unit) amount to 26.05% of the total downtime. Temperature behavior of the reduction gear unit is related to its technical conditions ranging from functional to limiting or critical. The article presents data on an analysis of operation of construction drilling machinery for pile installation in geotechnical conditions of Saint Petersburg in cluttered urban settings. It is suggested to improve the technology of well drilling by monitoring uninterrupted operation of the drilling machine reduction gear unit using a system of thermal sensors.
ISBN:9780367179830
0367179830
DOI:10.1201/9780429058882-42