摘要
为克服传统工业混凝土地坪的固有缺点,创新性地将高强双向土工格栅作为新型技术措施应用于工业混凝土地坪的加筋。在前期已获得现场试验结果的基础上,采用有限元数值方法,分析了竖向荷载作用下高强双向土工格栅加筋的混凝土地坪的应力和裂缝的演化,并与现场试验结果进行对比,评价了双向土工格栅对于提高混凝土地坪承载能力、防治其开裂和不均匀沉降等方面的效果,表明双向土工格栅置于混凝土地坪底面能够有效控制混凝土裂缝的发展,提高其承载能力,减小不均匀沉降。
Industrial floor application increase gradually along with the industrialization in China pushing forward,but settlement deformation and fracture is susceptible to appear in ordinary floor which threats the normal using of industrial floors,thus it is particularly important to seek new floor materials.With the development of polymer technology,the high strength and high elastic modulus geogrid is introduced,which is innovatively taken as a new kind of technical measures to be used in the industrial floor to overcome the traditional floor inherent shortcomings.By numerical simulation,the effects of concrete reinforced with geogrid for improving the bearing capacity and reducing the settlement of ground,and for controlling the fracture of concrete are analyzed.The results indicate that the fissure of concrete reinforced with geogrid can effectively be controlled,the bearing capacity can be increased,and the differential settlement can be decreased.
作者
王协群
徐加俊
WANG Xiequn;XU Jiajun(School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,China;Hubei Key Laboratory of Disaster Prevention and Mitigation,China Three Gorges University,Yichang 443002,China)
出处
《混凝土》
CAS
北大核心
2020年第10期63-67,71,共6页
Concrete
基金
三峡大学防灾减灾湖北省重点实验室开放基金资助项目(2016KJZ03)。
