高填方场地沟底排水措施研究

Research on the drainage measures of the trench bottom in the high fill field

针对特高压变电站中遇到的高填方场地,本文通过对各种型式的排水盲沟进行对比总结,提出了一种更适合回填碎石土场地沟底排水盲沟,采用毛细血管式布置方式,有效解决变电站运行期间,地表水沿回填土与老土接触面位置形成渗流汇集到沟底后,由于排水不畅对场地沉降、边坡稳定等造成的不利影响。

Aiming at the high fill site encountered in UHV substation,through the comparison and summary of various types of blind drainage ditches,this paper puts forward a blind drainage ditch at the bottom of rough ditch,which is more suitable for gravel soil backfilling.The capillary layout is adopted to effectively solve the problems that the surface water forms seepage along the contact surface between backfill and old soil and collects at the bottom of ditch during the operation of substation,and adverse impact on site settlement and slope stability due to poor drainage.