1) frost force measurement
冻胀力测量
1.
Exploration of mechanics properies of frozen soil under unloading condition and their influences on frost force measurement;
实验表明:冻土在加载和卸载条件下的力学参数是不尽相同的,可以将采用应力解除法测量冻胀力的过程看成是一个卸载过程,卸载过程与加载过程的不同,卸载过程对冻土力学参数的影响,以及在进行冻胀力测量结果的计算时如何进行测量参数的选取是讨论的主要问题。
3) frost-heaving ratio and frost-heaving stress
冻胀率和冻胀力
4) frozen-heave force
冻胀力
1.
The design of frozen wall in deep alluvium is a difficult problem of freezing shaft sinking, at present, few research have reported in detail on the characteristic of frozen wall with loopy freezing pipe, not to mention the characteristic of its temperature field, moisture field and frozen-heave force of it.
深厚冲积层冻结壁的设计是冻结法凿井中的难题,目前对三圈管冻结壁的形成特性研究较少,而对三圈管冻结壁形成过程中的温度场、水分场和冻胀力应力研究至今还未见有详细的报道。
2.
The conclusion is that the frozen-heave force is most lager between center tubes , then outer tubus and inner tubus.
对三圈管冻结壁形成过程中冻胀力进行了室内相似模型试验,得出中圈管的管间冻胀力最大,而外圈管和内圈管的管间冻胀力相对较小。
5) frozen-heave stress
冻胀应力
1.
Study on early-age frozen-heave stress and the compressive strength rule of the concrete at subzero temperature;
负温混凝土早期冻胀应力与强度发展规律的研究
2.
In this paper,the equipment was designed and developed by ourselves and the regularity of early-age frozen-heave stress of different proportions concrete at subzero temperature was measured(different w/c,anti-freezing agent and air-entraining,fly ash and slag).
自行设计与研制了测量混凝土早期冻胀应力的设备,并通过该设备测量出了不同配比(不同水灰比,掺加防冻剂、引气剂,掺加粉煤灰和矿渣粉)混凝土早期冻后产生冻胀应力的规律;并探讨了不同受冻制度(标养6h后受冻和标养达到其28d强度的30%两种制度)对混凝土抗压强度及抗折强度的影响。
3.
In this paper the equipment was designed and developed by ourselves and early-age frozen-heave stress of control concrete at subzero temperature was measured at the frozen temperature of-5℃,-10℃ and-15℃.
自行设计与研制了测量混凝土早期冻胀应力的设备,通过该设备测量出基准混凝土的温度在-5,-10,-15℃时早期的冻胀应力,进而研究混凝土冻胀应力对混凝土强度及抗冻性能的影响。
6) frost force
冻胀力
1.
The precondition of control fissure to be damaged and expanded was put forward,and the calculation formulation of frost force on control fissure under freezing condition was established.
提出了主控结构面损伤扩展的条件,建立了冻结状态下作用在主控结构面上的冻胀力计算公式,通过工程实例给出了公式的运用方法,分析了影响主控结构面冻胀力大小的因素,为危岩发育机理的深入研究奠定了理论基础。
2.
Along with the development in west China ,the problem of the bad effect of frost force on lining structure in cold regional tunnels has increasingly stand out, cold regional tunnels construction has faced grim challenge .
冻胀力对寒区隧道衬砌结构的影响及其防治对策一直是我国寒区隧道工程科研难点与重点,是寒区隧道工程建设和运营面临的严峻挑战。
3.
In this paper, the formulae of Laplace transform with respect to time for frost forces of the liner frozen surrounding rock unfrozen surrounding rock system are derived from the elastic viscoelastic correspondence principle.
利用弹性粘弹性相应原理，导出了衬砌－正冻围岩－未冻围岩系统冻胀力在拉氏象空间中的有关算式，然后采用数值逆变换的方法，求得了寒区隧道的冻胀力和衬砌应力。
补充资料：冻胀丘
冻胀丘是由于地下水受冻结地面和下部多年冻土层的遏阻，在薄弱地带冻结膨胀，使地表变形隆起，称冻胀丘。冰锥是在寒冷季节流出封冻地表和冰面的地下水或河水冻结后形成丘状隆起的冰体。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条