价值工程
價值工程
개치공정
VALUE ENGINEERING
2013年
22期
108-109,110
,共3页
粉土%复杂环境%基坑%监测
粉土%複雜環境%基坑%鑑測
분토%복잡배경%기갱%감측
silt%the complex environment%foundation pit%monitoring
深基坑开挖会引起周边环境的变形，变形过大会造成建构造物的功能丧失甚至破坏，尤其是对于位于繁华闹市区的深基坑，施工过程中的变形控制要求更加严格，难度更大，本文结合实际工程案例，对郑州地区某深基坑的施工监测进行归纳总结，通过分析监测数据与对应的工况，监测内容包含基坑周边建筑物沉降、基坑坡顶竖向位移、基坑坡顶水平位移、深层水位位移、锚索内力，研究复杂环境下粉土地区深基坑施工过程中的变形特性和变化规律，研究结论可为类似条件下工程施工和监测提供借鉴。
深基坑開挖會引起週邊環境的變形，變形過大會造成建構造物的功能喪失甚至破壞，尤其是對于位于繁華鬧市區的深基坑，施工過程中的變形控製要求更加嚴格，難度更大，本文結閤實際工程案例，對鄭州地區某深基坑的施工鑑測進行歸納總結，通過分析鑑測數據與對應的工況，鑑測內容包含基坑週邊建築物沉降、基坑坡頂豎嚮位移、基坑坡頂水平位移、深層水位位移、錨索內力，研究複雜環境下粉土地區深基坑施工過程中的變形特性和變化規律，研究結論可為類似條件下工程施工和鑑測提供藉鑒。
심기갱개알회인기주변배경적변형，변형과대회조성건구조물적공능상실심지파배，우기시대우위우번화료시구적심기갱，시공과정중적변형공제요구경가엄격，난도경대，본문결합실제공정안례，대정주지구모심기갱적시공감측진행귀납총결，통과분석감측수거여대응적공황，감측내용포함기갱주변건축물침강、기갱파정수향위이、기갱파정수평위이、심층수위위이、묘색내력，연구복잡배경하분토지구심기갱시공과정중적변형특성화변화규률，연구결론가위유사조건하공정시공화감측제공차감。
Deformation of surrounding soils usually followed along with deep foundation pit excavation. If the deformation is over the allowable limit, loss of function and even damage of structures maybe occur. So the deformation controling in the construction process has a higher demand and difficulty for deep foundation pit in downtown. With a practical deep foundation pit project of Zhengzhou, construction monitoring data and the corresponding working condition is summarized and analyzed in the paper, including surrounding constructions settlement, horizontal and vertical displacement of the pit top, horizontal displacement of deep soil, and tension force of anchor cable. Deformation and its laws of deep foundation pit construction in the silt area under a complex environment are attained, and it provides some reference for project of similar environment.
