高聚物注浆屏障隔振性能的试验研究  

Experimental study on vibration isolation performance of polyurethane fast injecting barrier

作　　者：陈洋洋[1] 谭平[1] 陈建秋[1] 李文彦[1] 周福霖[1] 

机构地区：[1]广州大学减震控制与结构安全国家重点实验室(培育),广东广州510405

出　　处：《地震工程与工程振动》2013年第6期194-198,共5页Earthquake Engineering and Engineering Dynamics

基　　金："973"国家重点基础研究发展计划(2012CB723304);"十二五"国家科技支撑计划(2012BAJ07B02);国家自然科学基金项目(11102045);广东省自然科学基金项目(S2011040004039)

摘　　要：提出应用快速注浆高聚物地下连续屏障作为工程隔振屏障的技术思路。借鉴已有高聚物注浆材料密度和刚度的可控性、本构的弹塑性、材料快速成型性、防水性、耐久性和安全性,提出在基于材料特性的屏障隔振设计基础上,发展和应用已日趋成熟的定向劈裂注浆施工工艺和高聚物帷幕注浆施工工艺建造地下高聚物材料连续屏障实现有效隔振。以该方案为指导设计并完成了试验和对比分析,分析表明,本文工作采用的劈裂注浆施工工艺完工的围闭屏障隔振方案,将受振体速度响应峰值在三个方向上分别降低31%、56%和35%,初步给出了高聚物注浆屏障隔振技术路径可行性的实验依据,为进一步的理论研究和分析工作奠定基础。A technical approach of vibration isolating barrier by polyurethane fast injecting technique is presented in this paper. Based on references for controllable density and stiffness, elastic-plasticity, rapid taking shape, water- proofing, durability and safety, the vibration isolating barrier can be designed. The directional fracturing grouting method and the curtain grouting method can be developed and adopted to build underground continuous polymer barrier to achieve effective vibration isolation. Under the guideline of the present scheme, test and contrast analysis is completed. Test result shows that the vibration isolating barrier by fracturing grouting construction technology can make the peak value of response velocity reduce in three directions, by 31% , 56% and 35% respectively. Prelim- inary experiment basis thus is provided for feasibility of vibration isolating barrier by polymer grouting technology. And the preliminary foundation for further theoretical research and analysis is laid.

关 键 词：高聚物注浆 屏障隔振 试验研究 

分 类 号：TU435[建筑科学—岩土工程] TU352[建筑科学—土工工程]