隧道建设
隧道建設
수도건설
TUNNEL CONSTRUCTION
2015年
5期
463-467
,共5页
地铁%浮置板道床%隆起%排水%注浆%锚拉
地鐵%浮置闆道床%隆起%排水%註漿%錨拉
지철%부치판도상%륭기%배수%주장%묘랍
Metro%slab track bed%heaving%drainage%grouting%tie bar
某已运营近2年的地铁区间浮置板道床出现隆起、下沉情况，针对该类型道床隆起原因及处理方法进行了分析，确认浮置板道床基层与仰拱填充层之间存在空腔，地下水在空腔中形成压力，导致道床发生隆起。为了防止道床面继续发生隆起，采取了钻孔放水降压、注浆填充空腔、将道床及衬砌与基岩锚拉等措施对浮置板道床进行综合治理，达到了预期治理目的。
某已運營近2年的地鐵區間浮置闆道床齣現隆起、下沉情況，針對該類型道床隆起原因及處理方法進行瞭分析，確認浮置闆道床基層與仰拱填充層之間存在空腔，地下水在空腔中形成壓力，導緻道床髮生隆起。為瞭防止道床麵繼續髮生隆起，採取瞭鑽孔放水降壓、註漿填充空腔、將道床及襯砌與基巖錨拉等措施對浮置闆道床進行綜閤治理，達到瞭預期治理目的。
모이운영근2년적지철구간부치판도상출현륭기、하침정황，침대해류형도상륭기원인급처리방법진행료분석，학인부치판도상기층여앙공전충층지간존재공강，지하수재공강중형성압력，도치도상발생륭기。위료방지도상면계속발생륭기，채취료찬공방수강압、주장전충공강、장도상급츤체여기암묘랍등조시대부치판도상진행종합치리，체도료예기치리목적。
Heaving and settlement occur to the track bed of a running Metro tunnel, which has been in service for almost 2 years. In the paper, the causes and countermeasures for the heaving of the track bed are analyzed. It is concluded that there is a gap between the track bed cushion layer and the invert filling layer, the water at the gap results in pressure and causes the track bed heaving. Countermeasures, including water releasing and pressure reducing by means of bore-hole drilling, gap filling by means of grouting, reinforcing track bed, lining and surrounding rock by means of tie bol-ting, are taken. In the end, good treatment effect has been achieved.
