| 路基压实度快速测定瞬态冲击法 |
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| 引用本文： | 盛安连,顾炳其. 路基压实度快速测定瞬态冲击法[J]. 土木工程学报, 1998, 0(1) |
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| 作者姓名： | 盛安连 顾炳其 |
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| 作者单位： | 陕西省交通厅
(盛安连)，西安公路交通大学(顾炳其) |
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| 摘 要： | 本文叙述了用瞬态冲击法快速、无损测定路基压实度的原理以及技术关键.即在瞬态冲击下,存在S-G低频水滞频率,其压实度响应值与它的含水量几乎无关,并用均方谱作为指标,具有较高的响应值分辨力.
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| 关 键 词： | 路基压实度 瞬态冲击法 水滞频率 均方谱指标 |
INSTANTANEOUS IMPULSION METHOD FOR RAPID MEASUREMENT OF SUBGRADE COMPACTNESS |
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| ShengAnlian Gu Bingqi. INSTANTANEOUS IMPULSION METHOD FOR RAPID MEASUREMENT OF SUBGRADE COMPACTNESS[J]. China Civil Engineering Journal, 1998, 0(1) |
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| Authors: | ShengAnlian Gu Bingqi |
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| Affiliation: | ShengAnlian Gu Bingqi(Cbmmunication Department (Xi'an Highwayof Shanxi Province) Traffic University) |
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| Abstract: | This paper depicts the principle and technical keys of rapid and nondestructive measurement of subgrade compactness by the instantaneous impulsion method. When the soil is in a state of instantaneous impulsion, there exists a S-G low frequency portion in the soil, i. e. the water-retardation frequency portion, and within this portion the measured compactness response value has almost no connection with the moisture content in soil. The mean square spectrum has been used as the compactness response value index due to its better resolving power. |
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| Keywords: | subgrade compactness instantaneous impulsion method water-retardation frequency mean square spectrum index |
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