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(1 山西省民用建筑設(shè)計研究院，太原，030012；2 太原理工大學(xué)建筑與環(huán)境工程學(xué)院，030024；3 山西大學(xué)工程學(xué)院，太原，030013)
【提要】  加筋墊層能夠提高地基承載力，增加地基穩(wěn)定性。對某土質(zhì)條件的加筋墊層進(jìn)行現(xiàn)場試驗，研究加筋墊層的作用和影響加筋效果的主要因素。分析了加筋層數(shù)、筋帶間距、加筋線密度等參數(shù)對加筋地基強(qiáng)度和變形的影響。試驗結(jié)果表明，墊層加筋后地基承載力顯著增加，
而且雙層加筋效果更好。對于雙層加筋，隨著荷載的增加，靠近基底的筋帶才先發(fā)揮作用。影響加筋效果的主要因素有加筋層數(shù)和加筋帶的間距等。
【關(guān)鍵詞】  現(xiàn)場試驗  加筋墊層  土壓力  加筋效果  影響因素
Experimental Study on Belt Geosynthesticreinforced Gravel of Soft Soil/Qi Liansheng1, Zhang Lanting1,Huang Xianzhi2,3,Bai Xiaohong2(1 Shanxi Institute of Civil Architecture Design and Research,Taiyuan 030012,China;2 College of Civil and Environmental Engineering,Taiyuan University of Technology,Taiyuan 030024,China;3 College of Engineering,Shanxi University,Taiyuan 030013,China)
Abstract:The geosynthesitcreinforced layer can improve the bearing capacity and strengthen the stability of the ground.Based on the soil condition,geosynthesticreinforced layer is tested to study the effect of reinforced layer and the main affecting factors.The factors such as layers,distance between the belts,linear density of the reinforced layer that affect the strengthen and deformation of the ground,are analysized.The results show that the bearing capacity of the strengthened ground improves greatly,especially for the double reinforced layers.For the double layers,the bottom reinforcement plays role firstly with the increasing load.The  main factors are layers and the distance of reinforced layer that affect the reinforced results.
Keywords:field test; geosynthesticreinforced layer; soil pressure; effect of reinforced layer; effect factors