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            西安飽和軟黃土高水位核心區基坑降水技術
            • 作者: 張亞龍,張玉峰,宋奇昱,等
            論文摘要

            西安飽和軟黃土高水位核心區基坑降水技術*

            張亞龍1,張玉峰1,宋奇昱2,張書敏2 

            (1.中鐵七局集團西安鐵路工程有限公司,陜西 西安 710032;2.西安建筑科技大學土木工程學院,陜西 西安 710055)

            [摘要]飽和軟黃土核心區高水位降水一直是工程亟待解決的關鍵問題之一。以西安地鐵6號線施工為背景,結合理論分析、數值分析及現場監測深入探討了降水方案、施工關鍵參數及關鍵施工工藝。研究表明:止水帷幕聯合坑內降水工藝可作為飽和軟黃土基坑降水的有效方案,工程中應密切關注附近水源補給對降水效果及沉降控制的影響。

            [關鍵詞]基坑;飽和軟黃土;高水位;降水;數值模擬;監測

            [中圖分類號]TU753.66     [文獻標識碼]A     [文章編號]1002-8498(2021)04-0091-04

            Dewatering Technology of Foundation Excavation in High Water Level Core Area of Saturated Soft Loess in Xian

            ZHANG Yalong1, ZHANG Yufeng1, SONG Qiyu2, ZHANG Shumin2 

            (1.Xian Railway Engineering Co., Ltd. of China Railway Seventh Group Co., Ltd., Xian, Shaanxi 710032, China; 2. College of Civil Engineering, Xian University of Architecture and Technology, Xian, Shaanxi 710055, China)

            Abstract: The high water level precipitation in the core area of saturated soft loess is one of the key problems that need to be solved urgently but not solved well. Based on the construction of Xian Metro Line 6, combined with theoretical analysis, numerical analysis and on site monitoring, this paper discusses the dewatering scheme, key construction parameters and key construction technology. The results show that the water stop curtain combined with pit dewatering technology can be used as an effective scheme for foundation excavation dewatering in saturated soft loess, and the influence of nearby water supply on the dewatering effect and settlement control should be paid close attention to.  

            Keywords:foundation excavation; saturated soft loess; high water level; dewatering; simulation; monitoring

            *陜西省重點研發計劃項目(2020SF-373

            [作者簡介]張亞龍,工程師,Email: 278716337@qq.com

             

            主辦單位:亞太建設科技信息研究院有限公司 中國建筑集團有限公司 中國土木工程學會    承辦單位:施工技術傳媒機構
            京ICP備17044493號-16

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