地下水位及水力傳導係數之現地量測方法

Field Measurement of Ground Water Level and Hydraulic Conductivity

賈儀平(Yee-Ping Chia) ； 邱絹琇(Jessie J. Chiu)

《地工技術》 46期 (1994/06) Pp. 47-56

https://doi.org/10.30140/SG.199406.0004

摘要

地下水位對邊坡穩定及地盤下陷影響極大，吾人可在工址設置觀測井以記錄地下水位的變化，而井數及其分佈、深度則視當地之水文地質、地形及工程需求而定。水力傳導係數代表岩石之透水性，乃是考慮工址排水、滲漏、環境保護及地質改善等問題之要因素。水力傳導係數變化範圍甚大，較可靠的測定方法是進行現地試驗。由於微水試驗、單井水位回升試驗、多井抽水試驗及裸孔試驗各有其適用狀況，在實際量測之前宜就現地條件及工程需求加以評估。

關鍵字

地下水位 ； 水力傳導係數 ； 現地量測

並列摘要

Ground water level has a great impact on the slope stability and land subsidence. We can establish observation wells or piezometers on site to record the variation of ground water level the number of wells and the distribution and depth for placing observation wells are dependant upon local hydrogeology, topography and engineering requirements. Hydraulic conductivity that represent the ease of flow in the rock is an important consideration for site drainage, seepage, environment protection, and improvement of geologic conditions. The value of hydraulic conductivity for geologic materials varies over a wide range. Currently field test is the most reliable measurement method. Because the applicability of slug test, single-well recovery test, multiple-well pumping test or open hole testvaries with field conditions and engineering requirements, it is essential to evaluate these conditions prior to the field measurement.

並列關鍵字

ground water level ； hydraulic conductivity ； field measurement