1992 Vol. 6, No. 3

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Geotechnical Engineering and Engineering Geology
The Feedback Anaiysis of the Pile Foundation of the Key Telecommunication Building in Taiyuan(2)
Zhang Kuangcheng, Ren Shuhua
1992, 6(3): 1-4.
[Abstract](15) [PDF 3443KB](4)
Abstract:
In the practice of the pile foundation engineering of the key telecommunication building that has been constructed and used in Taiyuan, the feedback analysis is carried out for the problems about the selection of bearing stratum, the determination of the bearing capacity of the single pile and the group pile, the settlement analysis of group pile, the heave of the ground and the dissipation of the pore water pressure in the process of pile driving. Some experience and lessons are obtained.
Monitoring and Analysis of the Foundation Pit Examination of the High Buildings in Downtown Shanghai
Feng Qiang, et al
1992, 6(3): 5-9,4.
[Abstract](38) [PDF 5243KB](4)
Abstract:
The anchored sheet pile wall and reinforced concrete pile supported sheet pile wall were used in excavations of six twenty-six storey buildings in downtown Shanghai. Earth pressures on sheet pile walls are calculated and the stability of the support systems are evaluated. Displacements of the soils behind sheet pile walls, the nearby underground pipes and buildings were carefully monitored from the finish of pile driving to the foundation construction.
The Properties of the Ground of Building in Loess with High Wet Density
Zhong Longhui
1992, 6(3): 10-15.
[Abstract](30) [PDF 5870KB](2)
Abstract:
The origin, distribution rule and the characteristics in physics and mechanics of the loess with high wet density are discussed in detail in this paper, and in the meantime, the bearing capacity of the loess with high wet density is provided.
To Evaluate the Liquefaction Tendency of the Sandy Soil or Silty Soil by Using the Strain Method with Dynamic Shear
Yao Lüwen
1992, 6(3): 16-17.
[Abstract](25) [PDF 1738KB](2)
Abstract:
Fuzzy Expert System and Its Application in Rock Mass Classification of Hydraulic Tunnels
Huang Yunfei
1992, 6(3): 18-27,38.
[Abstract](19) [PDF 2838KB](2)
Abstract:
In this paper, fuzzy mathematics, expert system and finite element method are used in the rock mass classification of hydraulic tunnels. FES, a new expert system used for surrounding rock classification, is introduced.
A Certain Number of characteristics of Ground with HCombined Pile in the Geotechnical Investigation
Yang Feng
1992, 6(3): 28-30.
[Abstract](28) [PDF 2863KB](2)
Abstract:
A number of characteristics of the ground with H-combined pile in the geotechnical investigation are introduced emphatically in this paper. Several methods are recommended to calculate the bearing capacity of single pile of the H-combined pile. And several selective plans are provided for the computation of pile bearing capacity.
A Probability Distributioa Study of Physical and Mechanical Index Parameters on Some Site in Henan Provtnce
Hua Jianxin
1992, 6(3): 31-34,44.
[Abstract](14) [PDF 4269KB](2)
Abstract:
The prpobability distribution of the physical mechanic parameters is studied on some site in Henan province, and there comes a conclusion that parameters except the coefficient of compressibility obey the normal distribution at the α level of 0.05. The Liquidity index (IL) obeys not only the normal distribution but also the β distribution. However the coefficient of compressibility obeys neither the normal distribution nor the β distribution.
Engineering Geophsical Methods
Pile Quality Testing by Elastic Wave Reflection Technique
He Jian, Gu Xiuping
1992, 6(3): 35-38.
[Abstract](23) [PDF 3381KB](1)
Abstract:
Based upon the elastic wave theory, the characteristics of wave impedance and the features of reflection wave phase varying with the defect interface of a pile are described. Methods for estimating the defects of tested pile are proposed through analysis of practical cases.
Groundwater
The Pipe Loss Calculation of Radial Pipe
Wang Yunqi
1992, 6(3): 39-44.
[Abstract](23) [PDF 5109KB](1)
Abstract:
How to revise the drawdown in collecting well to eliminate the effect of pipe loss during calculating yields of radial pipe? That is a problem not to be ignored in forecasting the yields of radial well.The shortcoming in currently available formulas for calculating the pipe loss of radial pipe is analysed in detail. After going through a number of simulant experiments and statistical process, a more effective formula is obtaiend. It reflects the important hydrodynamic feature of inhomogeneous collecting water along radial pipe. Therefore it possesses more satisfiable precision than any currently available formulas.
The Discussion about the Evaluation Method on the Groundwater Contamination in Cities
Mei Shuangbing, Cai Zhirong
1992, 6(3): 45-47.
[Abstract](27) [PDF 2677KB](1)
Abstract:
Some problems of the common index and method in the evaluation of groundwater contamination in cities are analysed in this paper, and comprehensive evaluation standard and method using multi-index is proposed. And considering the situation of our country, using the initial value of relative contamination of groundwater replacing the not easily obtained initial value of groundwater contamination is suggested.
The Method of drawing Isoline of Water Table by Using the Method of Trend Surface Residual Superposition and the Triangulation Netwrok
Bi Anjun
1992, 6(3): 48-52.
[Abstract](43) [PDF 4614KB](1)
Abstract:
Based on the principle of drawing contour map using the trend-surface residual superposition method and the triangulaton network method, the drawing method of trend-surface residual superposition——triangulation network is proposed in this paper, and verified by applying it in engineering cases.
Surveying Engineering
The Subaqueous Topographic Surveying at the iniet of the Tunnel at Miyun Reservoir
Hou Jiazhen
1992, 6(3): 53-58.
[Abstract](22) [PDF 5486KB](1)
Abstract:
The method of subaqueous topographic surveying at the inlet of the tunnel at Miyun reservoir, and the technique to take photograph for relief beneath water are introduced in this paper.
The Plan and the Operation of the Cadastral Surveying in the Factories of National Defence Industry System
Li Zhenjing
1992, 6(3): 59-61.
[Abstract](43) [PDF 2657KB](1)
Abstract:
Based upon the real situation of factories in the national defence industry system, the techinque level and conditon of each surveying unit in the system as well as the requirement in future, a plan and an operation method for quickly cadastral surveying are proposed in this paper.
TheContent and Requirement of the Situation Investigation on Land Use
Ji Jintang
1992, 6(3): 62-64.
[Abstract](35) [PDF 3732KB](1)
Abstract:
Based upon the experience of land use investigation made in several counties, the main content and the work program of land use investigation are introduced in details in this paper.

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