Permafrost是什么意思

网络释义

用法例句

Research Summarization on Natural Gas Hydrate in Permafrost Regions;

多年冻土区天然气水合物研究综述

Relationship between permafrost and gas hydrates on Qinghai-Tibet Plateau.;

青藏高原天然气水合物的形成与多年冻土的关系

Comparative Analysis on Ecological Conditions of Qinghai—Tibet Plateau Permafrost Areas and Tianshan Mountain Permafrost Areas;

青藏高原与天山山地多年冻土地区生态环境状况的比较分析——以青藏公路格拉段与天山公路独库段为例

The application of thermal probe on subgrade in permafrost soil zone in Qingzang railway;

热棒在青藏铁路多年冻土区路基中的应用

An evaluation of the island-shaped permafrost soil near Bagazha village;

对青藏铁路巴嘎榨岛状多年冻土的评价

By means of preliminary experimental study on reinfo rced embankment in Qingshuihe Section of Qinghai-Tibet Railway,this paper analy ses its action of protecting permafrost soil and maintaining stability of railwa y subgrade, carries out the analysis study on its ground temperature and up lim it of temperature with human intervention.

通过对青藏铁路清水河段加筋路堤一些初步的试验研究 ,分析加筋路堤在保护多年冻土和维护铁路路基稳定性方面的作用 ,对该加筋路堤下地温情况及多年冻土的人为上限进行分析研究。

Distributing of perennial frozen earth area and its bridge and culvert engineering;

浅谈多年冻土地区的分布及其桥涵工程

This article analyzed the reason why the road built in the perennial frozen earth is destroyed.

分析了在多年冻土地带修筑的铁 (公 )路路基被破坏的原因 ,提出了对路基采取保温的防治措施 ,介绍了路基保温的机理及硬质聚氨酯泡沫塑料在路基上的施工工

Considering the bad natural condition of Qinghai-Tibet Plateau and the special engineering character of perennial frozen earth ,the author carried out some research on getting temperature index,laws during concrete construction through calorific calculating,which will guide the concrete construction in perennial frozen earth area of Qinghai-Tibet Plateau and other chilly area as well.

针对青藏高原腹地多年冻土区恶劣自然环境和多年冻土独特工程特性条件下桥梁施工对混凝土提出的技术要求 ,通过热工计算 ,推导混凝土施工过程中各阶段的温度控制指标、措施和一些规律 ,对青藏铁路多年冻土区桥梁混凝土施工及其它严寒地区混凝土施工具有指导意义。

Underground water types and the reated regulation in perennial frozen soil environment in Holapen Basin;

霍拉盆盆地多年冻土环境中地下水类型及赋存规律

Most areas along the Qinghai-Tibet Railway are of perennial frozen soil.

青藏铁路的大部分区域由多年冻土组成,冻土顶层或活动层特别容易受季节冻融的影响。

Study on stochastic earthquake characteristics of ground in permafrost regions;

多年冻土区场地地震动随机特性研究

Based on the governing differential equations of the transient problem of temperature fields with phase change, the two-dimensional finite element formula of computing temperature fields around a buried pipeline in permafrost regions are achieved by using Galerkin's method.

根据相变瞬态温度场的控制微分方程,应用Galerkin法推导出计算温度场的二维有限元公式,对中国东北多年冻土区运行30年的加热输油管道土壤温度场(融化圈)进行了计算分析和比较。

This paper discusses the influence of seepage of surface water in the sides of embankment on the temperature field of roadbed in permafrost regions.

运用传热学理论和渗流理论导出了路堤侧向有地表积水人渗情形下，多年冻土区路基温度场渗流场耦合作用的控制微分方程，然后以现场观测资料为基础，用Galerkin有限元方法对青康公路（214国道）花石峡冻土研究站1号试验路段路基温度场未来可能的变化状态进行了数值预报结果表明，若无渗流作用，5a后路堤左侧天然地表、路堤堤身和路堤右侧天然地表的最大季节融深分别为1。

Analysis of life cycle cost for asphalt pavement in permafrost zone;

多年冻土区沥青路面寿命周期费用分析

Construction of water-stop ridge for subgrade at permafrost zone;

青藏铁路多年冻土区路基挡水埝施工技术

Lot 19 of the Qinghai-Tibet railway is at an elevation of nearly 5,000 meters and is located in permafrost zone,where the construction climate is extremely harsh,construction period is short.

青藏铁路19标段海拔高度近五千米,位于多年冻土区,气候极为恶劣,施工期短。

The Permafrost Characteristics of Qinghai-Tibet Highway Subgrade in Permafrost Regions

青藏公路多年冻土区路基下冻土发育特征

Analysis on Bearing Capacity of Refreezing Process of Cast-in-place Bored Pile in Permafrost Region;

多年冻土地区钻孔灌注桩回冻过程承载力分析

RESEARCH ON THE INITIAL FREEZING TEMPERATURE OF PERMAFROST IN DA HINGGANG LING MOUNTAIN

大兴安岭多年冻土起始冻结温度测试研究

Numerical Simulation of Thermal Field of Roadbed under Cement Concrete Pavement in Permafrost Region

多年冻土区水泥混凝土路面下冻土路基温度场数值分析

PERMAFROST ALONG THE QING-KANG HIGHWAY (NATIONAL HIGHWAY NO. 214 );

青康公路(国道214线)沿线的多年冻土

The Effect of Embankment Construction on Permafrost in the Tibetan Plateau

路基施工对青藏高原多年冻土的影响

A Discussion on the Evaluation Indexes of Asphalt Pavement in Permafrost Regions

多年冻土地区公路路面评价指标探讨

Study on Temperature Fields and Frost Heave and Thaw Settlement of Railway Culvert in Permafrost Region;

高原多年冻土涵洞温度场及地基土冻融变形规律研究

Model Test Study on the Improved Filling Embankment in Permafrost Regions;

多年冻土区路堤填土改良模型试验研究

Research on High Performance Concrete in Qinghai-Tibet Plateau Permafrost Region(QT-HPC);

青藏高原多年冻土区高性能混凝土的试验研究

Analysis on the stability of permafrost low filled embankment by riprap slope protection

片石护坡保护多年冻土填土低路堤稳定性分析

Study of Stability of Embankment upon the Slope in the Permafrost Area at Anduo Section of Qinghai-Tibet Railway;

青藏铁路安多段多年冻土斜坡路基稳定性研究

Numerical analysis of preventing measures of roadbed problems in the permafrost regions of Yaling Railway

牙林线多年冻土区路基冻融病害整治工程效果模拟

Influence of Snow Cover on the Lower Limit of Permafrost in Altai Mountains

我国阿尔泰山地区雪盖对多年冻土下界的影响

Study on Highway Subgrade Stabilization and Predication Technique in Plateau Permafrost Region;

高原多年冻土区公路路基稳定及预测技术研究

Study on Mechanism of Subgrade Thawing and Countermeasrue Against Pavement Structure Distress in Permafrost Region;

多年冻土路基融沉机理及路面结构对策研究

Research on Thermal Stability of Railway Roadbed in the Permafrost Area of the Qinghai-Tibet Plateau;

青藏高原多年冻土区铁路路基热稳定性研究

Analysis of Excavating Stability and Water Seepage Feature of Tunnel in Permafrost Region;

多年冻土隧道开挖稳定性及其渗漏水特征分析