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題 名 | 高鐵緊鄰基地深開挖之設計及施工監測管理=Design and Construction Management of Deep Excavation for Site Adjacent to High Speed Rail |
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作 者 | 俞清瀚; 張登貴; 楊恆偉; | 書刊名 | 地工技術 |
卷 期 | 124 2010.06[民99.06] |
頁 次 | 頁33-44 |
分類號 | 441.13 |
關鍵詞 | 高速鐵路; 深開挖; 地中壁; 試挖單元; 監測系統; 回饋分析; High speed rail; Deep excavation; Cross wall; Test panel; Monitoring system; Back analysis; |
語 文 | 中文(Chinese) |
中文摘要 | 本文以位於高雄左營緊鄰高速鐵路平面路段之開發基地為例,介紹其深開挖之規劃、分析評估、設計及施工期間之監測與管理。基於高鐵基地對地層沉陷之嚴格限制,乃配合本基地地下室開挖需求,檢討擋土連續壁與地中壁、扶壁配置,同時分析開挖對高鐵基地之影響程度,並設計適當之輔助措施。開挖前,先進行連續壁單元試挖,以評估連續壁施工之可能影響及檢討其工法與程序;然後於基地內進行分區抽水試驗,以檢測擋土連續壁體之水密性,並進行灌漿改善措施。開挖期間,則藉由監測系統之連續性觀測研判,配合高鐵基地之定期檢測與階段性局部整碴調軌,管控基地開挖作業,並確保高鐵基地正常營運。以上深開挖之設計與影響評估、施工計畫及施工期間之監測管理,則由公正第三單位進行獨立之實質審查與督導;而高鐵近接施工之三階段管理則為本案例成功的重要因素。 |
英文摘要 | The analysis, design, influence evaluation and management of monitoring during construction of deep excavation for project site adjacent to Taiwan High Speed Rail (THSR) in Zuoying, Kaoshiung are presented in this paper. Layout of retaining diaphragm walls together with cross walls and buttresses as well as the ground deformation induced by excavation were studied and the auxiliary measures were also evaluated to meet the strict limits on additional settlement for THSR. Prior to excavation, the test panels of diaphragm wall were constructed and monitored to evaluate the potentially induced ground deformation then revise the construction method and procedures. In addition, the pumping tests were performed within the excavation area to investigate the water-tightness of retaining diaphragm system then the grouting improvements were conducted outside the diaphragm wall. During excavation, the monitoring results of comprehensive instrumentation together with the periodical measurements and re-adjustment on rail alignment of THSR were used to control the construction sequences; thus, safety for the operation of THSR was ensured during the basement construction. All the design, evaluation, construction plan of the deep excavation and the management of monitoring during construction were reviewed and audited by the independent third party. |
本系統中英文摘要資訊取自各篇刊載內容。