勘察科学技术
勘察科學技術
감찰과학기술
SITE INVESTIGATION SCIENCE AND TECHNOLOGY
2013年
2期
39-42
,共4页
济南长清区%湿陷性黄土%物理力学指标%经验关系%地基处理
濟南長清區%濕陷性黃土%物理力學指標%經驗關繫%地基處理
제남장청구%습함성황토%물리역학지표%경험관계%지기처리
Changqing district of Jinan%collapsible loess%physical and mechanical indexes%empirical re-lationship%ground treatment
济南黄土系风成－冲积、洪积成因的黄土状土，上部为全新世（Q4）堆积，下部主要为马兰期（Q3）堆积，济南长清区湿陷性黄土厚度一般为3～6m，主要为非自重湿陷性黄土，湿陷性轻微～中等，湿陷系数通常随深度逐渐减小，其标准贯入锤击数N与土层压缩模量Es0．1～0．2的经验关系为Es0．1～0．2＝0．9669N，相关系数r＝0．7875，二者相关性较好。该地区的地基处理方法常采用灰土垫层法和强夯法。
濟南黃土繫風成－遲積、洪積成因的黃土狀土，上部為全新世（Q4）堆積，下部主要為馬蘭期（Q3）堆積，濟南長清區濕陷性黃土厚度一般為3～6m，主要為非自重濕陷性黃土，濕陷性輕微～中等，濕陷繫數通常隨深度逐漸減小，其標準貫入錘擊數N與土層壓縮模量Es0．1～0．2的經驗關繫為Es0．1～0．2＝0．9669N，相關繫數r＝0．7875，二者相關性較好。該地區的地基處理方法常採用灰土墊層法和彊夯法。
제남황토계풍성－충적、홍적성인적황토상토，상부위전신세（Q4）퇴적，하부주요위마란기（Q3）퇴적，제남장청구습함성황토후도일반위3～6m，주요위비자중습함성황토，습함성경미～중등，습함계수통상수심도축점감소，기표준관입추격수N여토층압축모량Es0．1～0．2적경험관계위Es0．1～0．2＝0．9669N，상관계수r＝0．7875，이자상관성교호。해지구적지기처리방법상채용회토점층법화강항법。
The loess in Jinan is a product of aeolian alluvial and proluvial process ,the upper part of loess was piled up during Holocene (Q4 ), the lower part was piled up during Malan period (Q3 ).The thick-ness of collapsible loess in Changqing district of Jinan is usually 3~6m,and it is mainly non-collapsible loess under overburden pressure ,its collapsibillity is slightly to medium,its coefficient of collapsibility gradually decreases with depth increasing .The empirical relationship of the blow count of standard pene-tration test and the compression modulus is Es0.1~0.2 =0.9669N, the correlation coefficient is r=0.7875. The treatment method of collapsible loess in the area is used by lime soil cushion and dynamic compaction method.
