以現地試驗調查基隆河新生地粘土之工程性質

Geotechnical Properties of the Clay Deposits from In-Situ Test on Keelung River Reclaimed Land

陳厚銘(Hou-Ming Chen) ； 謝百鍾(Bai-Jung Shieh)

《地工技術》 54期 (1996/04) Pp. 55-66

https://doi.org/10.30140/SG.199604.0005

摘要

應用現地試驗調查技術如電子式水壓錐貫入試驗（CPTU），平鈑膨脹儀試驗（DMT），孔內側向壓力試驗（PMT），十字片剪力試驗（VST）等，以調查土壤之工程性質已日漸受到重視及採用。本文利用上述現地試驗項目，調查台北市基隆河新生地之地層，將其成果與鑽孔取樣及試驗室所得粘土層之不排水剪力強度（Su）、過壓密比（OCR）、體積壓縮係數（mv）等土壤性質進行比對，嘗試建立適合該地區之現地試驗與土壤參數經驗關係式，以擴展現地試驗之應用，供工程界參考。

關鍵字

現地試驗 ； 電子式水壓錐貫入試驗 ； 平鈑膨脹儀試驗 ； 孔內側向壓力試驗 ； 十字片剪力試驗 ； 基隆河新生地粘土

並列摘要

More newly developed in-situ tests have been extensively used in the soil investigation during the last few years. The in-situ testing programs comprise piezocone penetration test(CPTU), flat dilatometer test(DMT), pressuremeter test(PMT) and field vane shear test(VST). This paper discusses the engineering properties of the clay layer performed by using in-situ test and conventional laboratory test results of Keelung river reclaimed land in Taipei. Various engineering properties of the clay deposits, including undrained shear strength(su),overconsolidation ratio(OCR), coefficient of volume compressibility (mv), are compared with the in-situ tests. Based on the comparsion, the performance of parameter estimation and validity of existing correlations are presented. Attempts are made to get some empirical corrections for clayey layers for local engineering practice.

並列關鍵字

in-situ test ； piezocone penetration test ； flat dilatometer test ； pressuremeter test ； field vane shear test ； Keelung river reclaimed land ； clay