岩石力学与工程学报
巖石力學與工程學報
암석역학여공정학보
CHINESE JOURNAL OF ROCK MECHANICS AND ENGINEERING
2009年
z2期
3591-3596
,共6页
申永江%孙红月%尚岳全%李焕强%王迎超
申永江%孫紅月%尚嶽全%李煥彊%王迎超
신영강%손홍월%상악전%리환강%왕영초
桩基工程%测斜数据%抗滑桩%反演分析%工作状态
樁基工程%測斜數據%抗滑樁%反縯分析%工作狀態
장기공정%측사수거%항활장%반연분석%공작상태
pile foundations%inclinometer data%anti-slide pile%back analysis%operation state
在抗滑桩上设置测斜管,对抗滑桩的侧向位移进行监测,然后用测斜数据来反演分析抗滑桩的内力,再与抗滑桩的设计内力相比较,就可以知道抗滑桩的工作状态.抗滑桩的工作状态可分为安全、临界安全、非安全3种状态,安全状态下抗滑桩尚有一定的安全余度;临界安全状态下抗滑桩完全发挥了作用,处于最经济的设计安全余度,需要加强监测,密切关注下一步发展;非安全状态下抗滑桩达不到设计的安全要求,可能出现抗滑桩的破坏,必须加强监测,必要时实施新的加固措施.对工程实际中的抗滑桩进行监测,由测斜数据反演分析可知,抗滑桩处于安全工作状态.
在抗滑樁上設置測斜管,對抗滑樁的側嚮位移進行鑑測,然後用測斜數據來反縯分析抗滑樁的內力,再與抗滑樁的設計內力相比較,就可以知道抗滑樁的工作狀態.抗滑樁的工作狀態可分為安全、臨界安全、非安全3種狀態,安全狀態下抗滑樁尚有一定的安全餘度;臨界安全狀態下抗滑樁完全髮揮瞭作用,處于最經濟的設計安全餘度,需要加彊鑑測,密切關註下一步髮展;非安全狀態下抗滑樁達不到設計的安全要求,可能齣現抗滑樁的破壞,必鬚加彊鑑測,必要時實施新的加固措施.對工程實際中的抗滑樁進行鑑測,由測斜數據反縯分析可知,抗滑樁處于安全工作狀態.
재항활장상설치측사관,대항활장적측향위이진행감측,연후용측사수거래반연분석항활장적내력,재여항활장적설계내력상비교,취가이지도항활장적공작상태.항활장적공작상태가분위안전、림계안전、비안전3충상태,안전상태하항활장상유일정적안전여도;림계안전상태하항활장완전발휘료작용,처우최경제적설계안전여도,수요가강감측,밀절관주하일보발전;비안전상태하항활장체불도설계적안전요구,가능출현항활장적파배,필수가강감측,필요시실시신적가고조시.대공정실제중적항활장진행감측,유측사수거반연분석가지,항활장처우안전공작상태.
The lateral displacements of anti-slide piles are monitored using inclinometer. The internal forces of anti-slide piles were estimated through back analysis of the lateral displacement and then compared with the design internal forces. The operation state of the anti-slide piles could be deduced from the internal forces,which may be divided into the stable state,the limit security state and the instable state. In the stable state,the anti-slide pile still contains certain margin of safety;in the limit state,the anti-slide pile fully plays its role,and it is in the critical state of invalidation;in the instable state,the anti-slide piles cannot meet the required standard,which may lead to the failure of the anti-slide,therefore,the monitoring should be strengthened and the new reinforcement measure is needed. The anti-slide piles in project are in the stable state by back analysis based on data.