1) Compressive arch theory
普氏压力拱理论
2) pressure arch theory
压力拱理论
1.
According to partial deformed basement beam method,improved pressure arch theory are used in calculating the pressure of basement,inside force of a tunnel along national road 212 is also calculated,meantime,simulates by large limited unit,analyzes the forcing features of arch structure,has guiding effect for designing and construction of tunnel project.
根据局部变形地基梁法,利用改进了的压力拱理论计算地层压力,对212国道某一隧道衬砌(变截面直墙拱)进行了内力计算,同时利用大型有限元进行模拟,分析了拱形结构的受力特点,对隧道工程的设计与施工都具有一定的指导作用。
3) theory of М·М·Протодьяконов
普氏理论
1.
Based on the theory of М·М·Протодьяконов , the limit equilibrium theory and the karst collapse law in Zaozhuang city.
本文根据普氏理论及极限平衡理论分别建立了内部塌陷阶段临界土洞的高度表达式及地表塌陷阶段的渗压效应致塌力学模型,并用表达式及模型对枣庄市的岩溶塌陷进行了验证分析与评价,分析结果与实际塌陷情况符合较好,建立的表达式与模型基本上反映了该地区岩溶塌陷的形成机理。
4) modified natural arch
修正普氏拱
1.
In order to support the roadway suffering great horizontal stress effectively,the shape of self-stabilized structure around roadway was analyzed in considering the horizontal tectonic stress and supposing that the rock mass is fractured around roadway,obtaining the equation for the modified natural arch.
为了对受到较大水平应力的巷道进行有效的支护,本文在考虑水平构造应力作用情况下,假设巷道周边的岩体为松散破碎岩体,分析了巷道周边自稳结构的形状,得到开挖巷道周边最终形成的修正普氏拱的方程。
5) soil arch theory
土拱理论
1.
The soil arch theory is applied to the foundation support.
以广州市花城大道地铁车站深基坑为例,在分析地质条件的基础上,采用土拱理论对深基坑进行支护优化设计分析,并采用理正深基坑软件计算了基坑的位移与稳定性,计算结果表明,采用土拱理论进行设计的深基坑疏桩支护是安全可靠的。
6) pressure arch
压力拱
1.
It has shown that the pressure arch,rather than the beam or plate,can be formed under the shallow-buried and very loose roof.
浅埋深极松软顶板难以形成“梁”或“板”结构,随着开采,将形成“压力拱”结构;当采场推进到一定距离时,拱结构失稳破坏,产生初次来压;当拱顶高度接近地表时,压力拱主结构内岩体失稳破坏,引起工作面更剧烈来压,同时,拱外次结构内岩体随之破坏,引起地表下沉;压力拱结构周期性失稳并前移,引起工作面周期来压。
2.
The pressure arch was defined, and its boundary was determined based on stress analysis.
对压力拱拱体进行定义,通过应力分析确定拱体的边界,并用数值分析方法对拱进行分析。
补充资料：希普顿石拱
Image:11569337092757000.jpg
希普顿石拱
1947年，喀什米尔领事，英国探险家艾瑞克.希普顿在附近山区发现了一座巨大的天然石拱门。此后的五十多年里再没人造访希普顿拱门(shipton`s arch)。经过测量，这座高457米的惊人巨门是世界上最高的。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。