水利与建筑工程学报
水利與建築工程學報
수리여건축공정학보
TECHNIQUE OF SEEPAGE CONTROL
2011年
6期
44-47,72
,共5页
顺层岩质边坡%应力监测%敏感部位%强度折减法
順層巖質邊坡%應力鑑測%敏感部位%彊度摺減法
순층암질변파%응력감측%민감부위%강도절감법
bedded rock slope%stress monitoring%sensity location%strength reduction method
针对顺层岩质边坡稳定性监测较难进行的问题，采用应力监测的方法对其进行评价。利用数值计算得出不同结构面间距时的边坡失稳破坏位置为距离坡脚处最近的结构面位置处，并结合理论分析与锚杆监测的现场试验对其进行验证。现场试验结果表明，边坡内部应力在开挖后40天趋于稳定，锚杆受力最大值为30．6MPa，满足钢筋设计抗拉强度要求，表明该边坡趋于稳定状态。
針對順層巖質邊坡穩定性鑑測較難進行的問題，採用應力鑑測的方法對其進行評價。利用數值計算得齣不同結構麵間距時的邊坡失穩破壞位置為距離坡腳處最近的結構麵位置處，併結閤理論分析與錨桿鑑測的現場試驗對其進行驗證。現場試驗結果錶明，邊坡內部應力在開挖後40天趨于穩定，錨桿受力最大值為30．6MPa，滿足鋼觔設計抗拉彊度要求，錶明該邊坡趨于穩定狀態。
침대순층암질변파은정성감측교난진행적문제，채용응력감측적방법대기진행평개。이용수치계산득출불동결구면간거시적변파실은파배위치위거리파각처최근적결구면위치처，병결합이론분석여묘간감측적현장시험대기진행험증。현장시험결과표명，변파내부응력재개알후40천추우은정，묘간수력최대치위30．6MPa，만족강근설계항랍강도요구，표명해변파추우은정상태。
Aimed at the problem of difficulty to monitor the stability of bedded rock slope, the method of stress monitoring is used for evaluating it. The numerical calculation method is used to obtain that the failure location with different crack distance is at the ground crack location of nearest slope toe, which is verified through combining with the theory analysis and the field test of bolt monitoring. The research results show that the slope stress tends to stability about 40 days after cutting, the maximum stressing value of the bolt is 30.6 MPa, which could meet the requirements of the tensile strength in reinforcement designing, and indicate that this slope has tended to steady state.
