1995 Vol. 9, No. 1

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1995, 9(1): 1-3,52.
[Abstract](24) [PDF 375KB](8)
Abstract:
The problem of correcting or uncorrecting the standard value of bearing capacity was discussed by the 4 loading tests data in excavation in this paper. The conclusions were obtained that the results of loading test can be used directly in design and can not be corrected by depth.
1995, 9(1): 4-6.
[Abstract](52) [PDF 226KB](9)
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The basic idea and the mathematical principle of the two-step classification to rock mass quality are presented in this paper. The satisfied results are obtained to PD14 tunnel of Xiaowan Power Station with this new methods.
1995, 9(1): 7-11.
[Abstract](50) [PDF 481KB](12)
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To make full use of the geotechnical conditions in-situ and to use new convenient constructive technology in the support and water-tight structure of the deep and large excavation are expounded through engineering cases. It has simplifing affection on the design and practice of geotechnical engineerins.
1995, 9(1): 12-14,25.
[Abstract](23) [PDF 434KB](6)
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1995, 9(1): 15-21.
[Abstract](23) [PDF 714KB](5)
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1995, 9(1): 22-25.
[Abstract](27) [PDF 486KB](9)
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The field surveying of debris flow is a basic work in the surveying stage. To understand the field characteristics of debris flow has significance to decide the debris flow correctly and to develop the environmental engineering geology.
1995, 9(1): 26-29,21.
[Abstract](19) [PDF 462KB](5)
Abstract:
The effects of minerals compositions and chemical characteristics on expansive soil's swelling and shrinkage are analysed by engineering practice in this paper. It is proposed that the content of montmorillonite and the exchange capacity of cation (CEC) is main internal factors which influence swelling and shrinkage of expansive soil, and the increase of the content of montmorillonite will cause linear increase of the free swell of expansive soil's and the mechanism of influence arc analysed from microstructures of minerals.
1995, 9(1): 30-32,39.
[Abstract](20) [PDF 448KB](5)
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The design idea, operating environment, software function, users' interface and safety control of the information searching system of pile foundation testing engineering arc introduced and explained with engineering application. It has significance to the development of the pile foundation test, especially of the dynamic testing technique.
1995, 9(1): 33-36.
[Abstract](28) [PDF 422KB](13)
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1995, 9(1): 37-39.
[Abstract](26) [PDF 337KB](6)
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The deformation and failure characteristics of soil mass between close-set excavation braced by cantilever retaining wall was described in this paper. The failure mechanism of this kind of bracing is analysed. It is shown that the failure relates to that the distance between excavation too small.
1995, 9(1): 40-45.
[Abstract](41) [PDF 693KB](8)
Abstract:
Group-well exploiting test is a direct and effective investigating method groundwater resources evaluation. But it is expensive and requires long period. It isn't the method to evaluate the groundwater resources directly and to measure the accuracy of grade B allowable exploiting quantity in most cases.
1995, 9(1): 46-50,45.
[Abstract](19) [PDF 222KB](4)
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The new constructive technology of the foil welded and V-shaped filter tube and its application in the water ^applying pipes are introduced based on engineering practices in this paper.
1995, 9(1): 51-52.
[Abstract](25) [PDF 262KB](4)
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1995, 9(1): 53-55.
[Abstract](26) [PDF 374KB](4)
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1995, 9(1): 55-58.
[Abstract](30) [PDF 419KB](5)
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The histories of the horizontal displacement monitoring for the old slide of the shipyard are mainly introduced in this paper. It has some practicability that the technique method should be adopted based on the requirements and environmental conditions of engineering.
1995, 9(1): 59-64.
[Abstract](20) [PDF 545KB](4)
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The accuracy of various river crossing levelling is discussed in theory. And the engineering examples are used to make examination.It has some significance to the scheme design, the accuracy estimate and surveying of the river acrossing levelling.

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