作　　者： (朱希）; (李顺群）; (冯彦芳）; (王彦洋）;

机构地区： 天津城建大学土木工程学院,天津300384

出　　处： 《广西大学学报（自然科学版）》 2017年第4期1415-1421,共7页

摘　　要： 针对我国目前海绵城市建设成本偏高及城市建筑垃圾资源化处理率极低的现状,以室外原位场地试验为依托,对将建筑垃圾作为内置填充材料的雨水渗井的渗水效果进行量化分析。试验结果表明:建筑垃圾渗井能够改变原位场地土层的渗透性能,并且能够提高原位场地土体的入渗效率;当土层深度一定时,土样含水率随着水平间距的增大而减小;当水平间距一定时,土样含水率随土样深度的增加而减小;随着雨水的持续入渗,土中水含量增加,孔隙水压力的存在导致入渗速度逐渐降低。本文得出的结论可应用指导海绵城市建设,为城市解决雨水内涝问题提供技术支持。 At present,the high cost of sponge city construction and low urban construction waste recycling rate is prevalent in our country. In this paper,the experimental study on construction waste in the construction of sponge city was carried out. Generally,the horizontal permeability coefficient of the soil is the same as the vertical permeability coefficient. However,through the soil penetration test under different angles, we obtain the following conclusions： the permeability coefficient of soil is different in all directions,and the horizontal permeability coefficient of soil is larger than its vertical permeability coefficient. Through the original field test,we know that the selection of construction waste with good permeability as the filling material can not only increase theinfiltration rate of rainwater but also change the permeability of soil in a small scale. The conclusion of this paper can be applied to guide the engineering practice and provide theoretical support to solve the problem of urban water logging.

关 键 词： 建筑垃圾 海绵城市 渗透性能 渗井 雨洪管理