黑龙江交通科技
黑龍江交通科技
흑룡강교통과기
Communications Science and Technology Heilongjiang
2015年
8期
5-7,9
,共4页
基坑工程%支护%参数选择%综合评价%优化设计
基坑工程%支護%參數選擇%綜閤評價%優化設計
기갱공정%지호%삼수선택%종합평개%우화설계
foundation pit engineering%support%parameter selection%comprehensive assessment%design optimization
城市地铁施工多采用明挖法，但城市建筑密集、地质条件差，所以基坑支护是施工安全和质量控制最为关键的环节。基坑支护设计和优化是一项重要而又复杂的工作，文章采用价值工程理论，通过层次分析及模糊评价原则，分别对石家庄地铁市区车站和市郊车站拟采用的各种支护形式进行综合评价分析，确定基坑支护方案，并根据工程实际情况对支护参数进行调整和计算分析进行优化设计，最后，通过对比分析总结参数与变形及造价的变化规律，并提出安全、经济、合理的支护形式。
城市地鐵施工多採用明挖法，但城市建築密集、地質條件差，所以基坑支護是施工安全和質量控製最為關鍵的環節。基坑支護設計和優化是一項重要而又複雜的工作，文章採用價值工程理論，通過層次分析及模糊評價原則，分彆對石傢莊地鐵市區車站和市郊車站擬採用的各種支護形式進行綜閤評價分析，確定基坑支護方案，併根據工程實際情況對支護參數進行調整和計算分析進行優化設計，最後，通過對比分析總結參數與變形及造價的變化規律，併提齣安全、經濟、閤理的支護形式。
성시지철시공다채용명알법，단성시건축밀집、지질조건차，소이기갱지호시시공안전화질량공제최위관건적배절。기갱지호설계화우화시일항중요이우복잡적공작，문장채용개치공정이론，통과층차분석급모호평개원칙，분별대석가장지철시구차참화시교차참의채용적각충지호형식진행종합평개분석，학정기갱지호방안，병근거공정실제정황대지호삼수진행조정화계산분석진행우화설계，최후，통과대비분석총결삼수여변형급조개적변화규률，병제출안전、경제、합리적지호형식。
Cut and cover method is commonly used in the construction of city metro station, the supporting of foundation pits is the most critical step in construction security and equality control because of the dense buildings and unfavorable geolog-ical conditions in cities.The design and optimization of the supporting of foundation pits is essential and complex, in this paper, all the supporting forms of subway stations in urban and suburban areas of Shijiazhuang are comprehensively analyzed and assessed with value engineering according to Analytic Hierarchy Process ( AHP) and Fuzzy Evaluation principals.After-wards, the supporting program was determined, the supporting parameters were adjusted and the calculation and analysis was optimized based on the practical situation of the project.Finally, the change rule of construction cost and parameters were summarized by contrastive analysis and a secure, economical, and reasonable supporting form was put forward.
