中国安全生产科学技术
中國安全生產科學技術
중국안전생산과학기술
JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY
2014年
5期
11-16
,共6页
新管土刚度系数%管线沉降%地表沉降%简易预测公式
新管土剛度繫數%管線沉降%地錶沉降%簡易預測公式
신관토강도계수%관선침강%지표침강%간역예측공식
new pipe-soil stiffness coefficient%pipeline settlement%surface subsidence%simple prediction formula
在地层沉降计算理论基础上,通过定义新的管土刚度系数,以打靶法为手段,计算分析管线的沉降变形趋势,从管线抵抗地层沉降变形的效果可通过增加隧道埋深来体现这一思想出发,找到该系数与假想隧道埋深的相互对应关系,进而建立一套地下管线沉降和地表沉降的简易预测公式。通过与数值解的对比分析,进一步验证了其准确性和合理性。该公式计算量小、模型简单,应用范围较为广泛,可用于计算考虑管土刚度后,管线沉降变形和管线与地层之间的脱空,也可用于计算考虑管线抵抗地层作用后的地表沉降变形。
在地層沉降計算理論基礎上,通過定義新的管土剛度繫數,以打靶法為手段,計算分析管線的沉降變形趨勢,從管線牴抗地層沉降變形的效果可通過增加隧道埋深來體現這一思想齣髮,找到該繫數與假想隧道埋深的相互對應關繫,進而建立一套地下管線沉降和地錶沉降的簡易預測公式。通過與數值解的對比分析,進一步驗證瞭其準確性和閤理性。該公式計算量小、模型簡單,應用範圍較為廣汎,可用于計算攷慮管土剛度後,管線沉降變形和管線與地層之間的脫空,也可用于計算攷慮管線牴抗地層作用後的地錶沉降變形。
재지층침강계산이론기출상,통과정의신적관토강도계수,이타파법위수단,계산분석관선적침강변형추세,종관선저항지층침강변형적효과가통과증가수도매심래체현저일사상출발,조도해계수여가상수도매심적상호대응관계,진이건립일투지하관선침강화지표침강적간역예측공식。통과여수치해적대비분석,진일보험증료기준학성화합이성。해공식계산량소、모형간단,응용범위교위엄범,가용우계산고필관토강도후,관선침강변형화관선여지층지간적탈공,야가용우계산고필관선저항지층작용후적지표침강변형。
Based on the calculation theory of ground subsidence , a new pipe-soil stiffness coefficient was defined , and the trends of pipeline settlement and deformation were calculated .From the hypothesis that the effects to resist ground subsidence and deformation of pipeline could be reflected by increasing tunnel depth , the correspondence between this coefficient and the imaginary tunnel depth was found .Thereby , a set of simple prediction formula for underground pipelines subsidence and surface subsidence was established .By contrasting with the arithmetic solu-tion, the accuracy and reasonableness of the formula were verified .The formula can be used to calculate the pipe-line settlement and separation between the pipeline and the layer , and it also can be used to calculate the surface settlement considering the effect of the pipeline to resist the ground layer .