SPT PRACTICE SURVEY AND COMPARATIVE TESTS

スポンサーリンク

概要

• 論文の詳細を見る

• A questionnaire survey was conducted to ascertain the current practice of standard penetration test (SPT) in Japan. All 53 respondents perform the test according to the Japan Industrial Standard using drilling mud to stabilize boreholes in sand below groundwater table. The cathead and rope method is more popular than the trip monkey method, although about 75 percent of the respondents have used either method. The cathead and rope method is typically performed by turning a 15 mm manila rope twice aroung a 120 mm cathead.A level site in Niigata where the soil profile consisted of horizontal sand strata enabled a direct comparison of the N-values determined by the cathead and rope method and those by the trip monkey method. The test results show that the cathead and rope method yielded significantly higher N-values than the trip monkey method where N exceeded about 24,whereas either method produced about the same N-values where they were below 12.

• 社団法人地盤工学会の論文
• 1983-09-15

著者

• 時松 孝次

  Department of Architecture and Building Engineering, Tokyo Institute of Technology

• 吉見 吉昭

  Department of Architecture and Building Engineering, Tokyo Institute of Technology

関連論文

• PORE WATER PRESSURE RESPONSE AROUND PILE AND ITS EFFECTS ON P-Y BEHAVIOR DURING SOIL LIQUEFACTION
• EVALUATION OF EARTH PRESSURE UNDER ANY LATERAL DEFORMATION
• MOVING CRITICAL AND PHASE-TRANSFORMATION STRESS STATE LINES OF SATURATED SAND DURING UNDRAINED CYCLIC SHEAR
• SPT PRACTICE SURVEY AND COMPARATIVE TESTS

スポンサーリンク