黄土击实过程中土压力的变化研究.pdf

2017年7月上 施工技术 第46卷第13期 CONSTRUCTION TECHNOLOGY 95 D0I:10.7672/8js2017130095 黄土击实过程中土压力的变化研究* 商玉洁1，李婕1，白晓红12.3 (1.太原理工大学建筑与土木工程学院，山西太原030024：2.黄土地区公路建设与养护技术交通行业重点实验室， 山西太原030006；3.岩土与地下工程山西省重点实验室，山西太原030024) [摘要]用常规击实方法制备两种击实能下的压实黄土土样，比较两种不同击实能下的击实曲线，得到最优含水 量.利用改进的击实仪，通过在土层中埋设土压力盒，测试了击实过程中土中压力的大小，研究了随含水量和击实 能的变化黄土击实过程中土压力的变化规律. [关键词]地基：黄土；含水量：击实能；土压力；试验 [中图分类号]TU411.3 [文献标识码]A [文章编号]1002-8498(2017)13-0095-03 Study on the Change of Soil Pressure in Process of Loess Compaction SHANG Yujie' LI Jie' BAI Xiaohong.2. (1.School of Architecture and Ciril Engineering Taiyuan University of Technology Taiyuan Shanxi 030024 China; 2.Key Laboratory of Highcay Construction and Maintenance Technology in Loess Area Taiyuan Shanxi 030006 China; 3.Shanxi Key Laboratory of Geotechnical and Underground Engineering Taiyuan Shanxi 030024 China) Abstract:Compaction loess samples were prepared under different paction energy by normal paction methods paction curves under two different paction energy were pared and the optimal water content was obtained.The soil pressure box was buried in the soil and pressure was tested in the process of paction by the improved paction device.The soil pressure variation in the process of loess paction was researched under different water content and paction energy. Key words:foundations;loess;water content;paction energy;soil pressure;tests 0引言 分层埋设土压力盒与位移计，以记录路基模型内不 黄土常用于建筑物回填地基和公路、铁路路堤 同位置的土压力和变形量；冯世进等[9]专门设计了 的填筑等，这些工程用到的黄土改变了天然黄土原 半模试...