云南澜沧机场凝灰岩、碎屑岩填料填筑强夯专项试验应用研究

Experimental Study on Dynamic Compaction of Tuff and Clastic Rock Fill in Lancang Airport

鉴于澜沧机场地基处理及土石方工程规模大,场区料源岩性条件复杂,挖方中有大量的凝灰岩和碎屑岩需用做填料,而此料具有黏合性差、浸水软化及弱膨胀性等不利特点。通过现场一点一满的强夯试验,采集相关基础数据,分析比较和评价凝灰岩在实体工程运用中的试验效果与工程质量,确定合理的设计参数、施工工艺、工法、检测指标,优化工艺流程,选出技术可靠、施工简便、经济合理的土石方填筑方案,尽可能地缩短工期并节约工程投资。

In view of the size of the Lancang airport ground handling and earthwork engineering,field source rock conditions complex,excavated a large number of tuff and pyroclastic rocks with stuffing,and this material has poor adhesiveness,water softening and unfavorable characteristics of weak expansion. Through the field a little full compaction test,collecting basic data,analysis of test results of the evaluation and comparison of tuff in solid engineering application and engineering quality,design parameters and reasonable construction technology,construction method,detection index,process optimization,selected technology reliable,simple construction,economic and reasonable filling scheme and as far as possible to shorten the construction period and save the project investment.