25 May 1984, Volume 5 Issue 2
    

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  • RESEARCH AND CONTENTION ON THE QUATERNARY GLACIATION PROBLEM OF EAST CHINA DURING LAST 50 YEARS
    Huang Peihua
    JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY. 1983, 5(2): 1-8. https://doi.org/10.7522/j.issn.1000-0240.1983.0013
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    It was fifty years ago,since the Quaternary glaciation of the Lushan was pronounced by J.S.Lee (1933) and"Analysis of Lushan glaciation problem" was advanced by G.B.Barbour (1934) to evoked a heated discussion among the geoscientists. From the twenties to the sixties,the Quaternary glaciation regions of east China was taken for by Lee to have following principal regions: Datong of Shanxi province,the Taihangshan, the Lushan and the Huangshan etc. of lower reaches of changjiang,western Hubei province, eastern sichuan province, northern Guangxi province, the Xishan of Beijing and so on.But these phenomena of Quaternary glaciation remnants in middle-lower mountains of east China have been refuted by many geoscientists, except the Quaternary glaciation of the Taibeishan (Qinling)and the Yu-shan (Taiwan province).The problem is contenting a continuous.It is predicted that the research of Quaternary glaciation problem of east China will be came to a new and scientific conclusion in not too distant future.
  • A DISCUSSION ON THE BAITUSHAN ICE AGE IN NORTHEAST CHINA
    Qiu Shanwen, Zhang Aixin, Xia Yumei, Yan Qiulan, Li Fenghua
    JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY. 1983, 5(2): 9-18. https://doi.org/10.7522/j.issn.1000-0240.1983.0014
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    The Bailushan profile near the Zhujiakan towns, Longjiang county,Hei-longjiang province, was a model profile of Lower pleistocene strata in the Northeast China. The profile was named "The Baitushan Formation" in 1959. Afterwards "The Baitushan Ice Age"has been built according to the viewpoint of glacial and fluvial deposit of this strata.In fact, the Baitushan formation strata have characteristics of alluvial and proluvial facies,and constitute a series of fossil alluvial-proluvial fan landforms in the east foot of the Daxinganling mountain range. The components of clay mineral are mainly halloysite, and contain montmorillonite. Spore-pollen assemblage is mainly characterized by xerophyte wormwood, lamb’squarters and so on, thus the paleo-vegetation belongs to grassland landscape. Above mentioned facts indicate that the Baitushan formation strata is sediment of alluvial and proluvial facies under warm and dry climatic environments, but not glacial and fluvioglacial deposit. Therefore, there is not so called "The Baitushan Ice Age".
  • THE EXPERIMENTAL RESEARCH OF DILATATIONAL COUNTER-FORCE
    Sui Xianzhi, Zuo Li
    JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY. 1983, 5(2): 19-29. https://doi.org/10.7522/j.issn.1000-0240.1983.0015
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    For getting a clear understanding of the law of pile foundation self-anchor and for the purpose of applying selfanchor measurement in engineering to protect pile foundation dilatation,the research on this subject is of great significance.In recent years,we have done some experiments in freezer with dilatational counter-force models of which the geometric proportion are 1 to 2 and 1 to 4. In Wanjia experimental site,the experiment of dilatational counter-force prototype has been done and an experimental bridge with broadenpile foundation has been built.The experimental results show that the dilatational counter-force and the dilatational force occur simultaneously,and the dilatational counter-force changes with dilatational force;the distribution of dilatational counter-force along the horizontal direction is uneven; in the case of imcomplete anchored broaden pile foundation, the dilatational counter-force is distributed like the shape of a saddle.In the case of broaben pile foundation,the dilatational counter-force distributed within the extent of broaden plate can be born by pile foundation,thus the dilatational counter-force has been overcome and the ability for resisting dilatation of the pile foundation has been increased,which is so called the self-anchored role.
  • DISCUSSION ON THE MECHANISM OF NORMAL FROST HEAVING FORCE
    Chou Changqin
    JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY. 1983, 5(2): 31-36. https://doi.org/10.7522/j.issn.1000-0240.1983.0017
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    The observation results in situ of frost-heaving deformation show that during freezing the shear plane is formed downwards vertically along the fringe of foundation. The tangential frost heaving force acts on the shear plane through which forming normal frost heaving force P= τ. S, here τ、S is the tangential frost heaving stress along the shear plane and the surface area of the plane respectively.The relation between normal frost. heaving force and area of foundation can be expressed as follows:
    (P1/P2)=(√S1/√S2)
    where F is the area of foundation.
  • RELATIONSHIP BETWEEN THE ICE AND UNFROZEN WATER PHASES IN FROZEN SOILS AS DETERMINED BY PULSED NUCLEAR RESONANCE AND PHYSICAL DESORPTION DATA
    A.R. Tice, J.L. Oliphant, Zhu Yuanlin, Y. Nakano, T.F. Jenkins
    JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY. 1983, 5(2): 37-46. https://doi.org/10.7522/j.issn.1000-0240.1983.0018
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    An experiment is described that demonstrates the balance between the ice and the unfrozen water in a frozen soil as water is removed.Nuclear magnetic resonance (NMR) is used to monitor the unfrozen water content as the soil is dehydrated by a molecular sieve material.Our results show that the unfrozen water content of a Morin clay soil remains constant until the total water content has been reduced to the point where no ice remains in the system Once the ice is depleted,the unfrozen water content determined by NMR corresponds to the total water content of the soil determined by the weight of water removed by the molecular sieve material. Thus the validity of utilizing NMR in determining unfrozen water contents vs.temperature is established.
  • THE CHARACTERISTICS OF GRAIN-SIZE PARAMETERS OF TILL AND THEIR RELATION TO SEDIMENTARY ENVIRONMENTS
    Wu Anbin
    JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY. 1983, 5(2): 47-53. https://doi.org/10.7522/j.issn.1000-0240.1983.0019
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    Based on the sizing of modern tills,some principal characteristics of grain size parameters of the sediments and their relation to sedimentary environment are discussed in this paper. The tills are of multipeak form in size frequency curve and very poor sorting of grain size,such as (δ1>2, SK1>0 or <0, and Kg = 0.53-0.73. It is suggested that the characteristics of size distribution of tills are of importance for studying the sedimentary environment and for identifying the genetic type of ancient tills.
  • HYDROCHEMICAL FEATURES OF THE GLACIER N0.1 IN THE SOURCE REGION OF ÜRÜMQI RIVER,TIANSHAN
    Luo Hongzhen
    JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY. 1983, 5(2): 55-64. https://doi.org/10.7522/j.issn.1000-0240.1983.0021
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    This paper deals with the hydrochemical features of the Glacier No.1 and the composite characteristics of the negative or positive ions in different waters and the water ion of low mineralization, analyzes the relations between ice crystal texture and the total content of ion from lower to higher in the evolution from snow,firn to ice,and discusses the relations between the content of trace element and climate as well as the source of aqueous vapour supplement in glaciated area. By studies on the relations between the contents of potassium,sodium,calcium,magnesium,manganese, iron and aluminium and their concentration coeffecient, it is supposed that the Glacier No,l is a glaciated area of extremely continental type influenced mainly by continental climate.As a result,the influence of the environment around the glacier to the chemical compounds in glacia 1 water and the vapour supplement is unnegligible.
  • INFLUENCE OF MOISTURE IN FROZEN SOILS ON ULTRASONIC VELOCITY
    Fu Rong, Zhang Jinsheng, Hou Zhongjie
    JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY. 1983, 5(2): 65-74. https://doi.org/10.7522/j.issn.1000-0240.1983.0022
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    When ultrasonic wave propagates in frozen soils, its velocity will change with the moisture content of the soils.In coarsegrained frozen soils, ultrasonic velocity increases unlinearly with the increase in moisture content and density. However in fine-grained frozen soils, it varies irregularly with moisture and increases unlinearly with the decrease in density.In this paper, the influence of soil temperature on the variation of ultrasonic velocity is analysed, and the changes in the structure of frozen soils are also analysed on basis of the variation of the velocity with the unfrozen water content in frozen soils.The variation of ultrasonic velocity can well reflect the changes in some mechanical parameters of frozen soils, such as dynamic elastic modulus, poisson ratio, etc. These are also expounded in the paper.
  • THE THERMAL CONDUCTIVITY OF THAWED AND FROZEN SOILS WITH HIGH WATER (ICE) CONTENT
    Tao Zhaoxiang, Zhang Jingsen
    JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY. 1983, 5(2): 75-80. https://doi.org/10.7522/j.issn.1000-0240.1983.0023
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    The purpose of this paper is to introduce the data of the thermal conductivity, determined by the comparative method, of thawed and frozen soils with high water (ice) content for engineering application.The comparative method is based on the principle of steady heat conduction with one dimension.Both the standard (its thermal conductivity is known) and the determined(the thermal conductivity is unknown) samples are put togather between two thermostats. When the temperature regime reaches stable state, the thermal conductivity of the determined sample can be obtained by measuring the temperature gradient in samples.
  • METHODS OF MEASURING WATER CONTENT OF SOILS IN FROZEN GROUND AREAS
    Yu Jimin
    JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY. 1983, 5(2): 81-83. https://doi.org/10.7522/j.issn.1000-0240.1983.0024
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    In this paper,we have discussed the suitability of the four methods for measuring water content. They are the directcurrent resistance method,the high-frequency measurement method, the low-frequency measurement method,and the neutron method.
  • A SUMMARIZATION OF FORMULAS OF CALCULATING FROZEN OR MELTED DEPTH ABROAD
    Liu Tieliang
    JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY. 1983, 5(2): 85-95. https://doi.org/10.7522/j.issn.1000-0240.1983.0026
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  • Observation on the Changes of the Batura Glacier Terminus in 1980
    Chen Jianming
    JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY. 1983, 5(2): 97-98. https://doi.org/10.7522/j.issn.1000-0240.1983.0028
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