人民长江
人民長江
인민장강
Yangtze River
2015年
18期
62-65
,共4页
导流洞%塌方处理%阶梯开挖%羊曲水电站
導流洞%塌方處理%階梯開挖%羊麯水電站
도류동%탑방처리%계제개알%양곡수전참
diversion tunnel%collapse treatment%step excavation%Yangqu Hydropower Station
羊曲水电站导流洞埋深较浅,所处位置地质条件差,隧洞断面大,开挖易塌方. 在分析导流洞施工难点的基础上,结合类似工程塌方处理经验,主要采用"双排超前管棚"、"先拱后墙跟进衬砌"等施工技术,并通过优化支护参数和施工程序,顺利完成了该工程隧洞的塌方处理,且满足了导流洞过水的节点工期要求. 相关技术措施可为类似工程塌方处理提供参考和借鉴.
羊麯水電站導流洞埋深較淺,所處位置地質條件差,隧洞斷麵大,開挖易塌方. 在分析導流洞施工難點的基礎上,結閤類似工程塌方處理經驗,主要採用"雙排超前管棚"、"先拱後牆跟進襯砌"等施工技術,併通過優化支護參數和施工程序,順利完成瞭該工程隧洞的塌方處理,且滿足瞭導流洞過水的節點工期要求. 相關技術措施可為類似工程塌方處理提供參攷和藉鑒.
양곡수전참도류동매심교천,소처위치지질조건차,수동단면대,개알역탑방. 재분석도류동시공난점적기출상,결합유사공정탑방처리경험,주요채용"쌍배초전관붕"、"선공후장근진츤체"등시공기술,병통과우화지호삼수화시공정서,순리완성료해공정수동적탑방처리,차만족료도류동과수적절점공기요구. 상관기술조시가위유사공정탑방처리제공삼고화차감.
The buried depth of the diversion tunnel of Yangqu Hydropower Station is shallow, where the geological conditions are poor. The tunnel section is large, an prone to collapse in excavation. On the basis of analyzing the construction difficulties, the construction technology of double-row leading pipe-shed and first lining arch then wall were used and the supporting pa-rameters and construction procedures were optimized by combining with the similar engineering collapse treatment experience, so that the treatment of tunnel collapse in Yangqu Hydropower Station is completed smoothly and the flow-passing of the diversion tunnel is on schedule. The technical measures can provide reference for collapse treatment of similar projects.
