- 摘 要
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林乃山
（浙江省工程勘察院，寧波315012）[摘要] 根據(jù)寧波市軌道交通1號線一期工程11個注水試驗、13個單孔抽水試驗及3組多孔抽水試驗的實測數(shù)據(jù)，借助已有計算公式，求取寧波地區(qū)層③砂土（粉土）的滲透系數(shù)，并與室內(nèi)滲透試驗數(shù)值對比分析。認(rèn)為采用野外現(xiàn)場水文地質(zhì)試驗綜合求取的地基土滲透系數(shù)比室內(nèi)滲透試驗所得結(jié)果更客觀、更能反應(yīng)場地地基土特性。
[關(guān)鍵詞] 砂土（粉土）；注水試驗；抽水試驗；滲透系數(shù)Calculation of the permeability coefficient for ③ layer sand (silt) of Ningbo area
Lin Naishan
(Zhejiang Province Engineering Survey Institute, Ningb0 3 15012, China)Abstract: The permeability coefficient for ③ layer sand (silt) of Ningbo area was calculated on the basis of eleven injection tests, thirteen pumping tests and three groups of porous pumping tests measured data of the Ningbo Urban Rail Transit Line l phase, and then compared with the indoor penetration test values. It shows that the permeability coefficient from the field hydrogeological testing is more accurate than the result of indoor penetration test and more responsive to site characteristics of foundation soil.
Keywords: sand (silt); injection test; pumping test; permeability coefficient
