2000 Vol. 14, No. 3

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2000, 14(3): 125-129.
[Abstract](26) [PDF 360KB](11)
Abstract:
Based on personal experience,The steps,methods and skills of developing the Geotechnical Investigation Database using VB6 & Access97,as well as the solution for the problems which can be met are introduced.
2000, 14(3): 130-133.
[Abstract](25) [PDF 173KB](6)
Abstract:
The paper,which is based on the reliability test of experiment data,the optimum fit of probabilistic model by finite contrast method and the estimation of distribution parameters by extended Bayesian method,brings about the statistically optimal analysis of probabilistic dictribution about geotechnical parameters.
2000, 14(3): 134-138,146.
[Abstract](32) [PDF 451KB](8)
Abstract:
A Practical engineering of enforcement of mountain slope excavation by prestressed strand is introduced,which records the whole project procedure from design to construction.The slope remains firm,complete and well covered by the vegetation since the construction was completed five years ago.The practice proves to be a successful experience.
2000, 14(3): 139-142.
[Abstract](27) [PDF 218KB](4)
Abstract:
The triaxial compression tests of compacted soil samples with different lateral pressures are conducted with a new set of modified triaxial compression apparatus with which the soil samples can be scanned by CT at the same time during compression process.The production mechanisms of micro crack in the soil samples during the damage process are analyzed and the failure modes are concluded from the point of view of fractural mechanics.
2000, 14(3): 143-146.
[Abstract](45) [PDF 309KB](4)
Abstract:
Based on the acoustic wave sounding of the dam foundation of a water control project,the continuous ratio of J1~J4 inter layer shear zone is infered by analyzing the acoustic velocity anomaly.The reliability of fruits has been verified by the excavation of the dam foundation.
2000, 14(3): 147-151,179.
[Abstract](35) [PDF 436KB](5)
Abstract:
The continual arch form supporting system is made up of arch shape field operating reinforcement concrete thin diaphragm wall and assembly steel pipe concrete continual arch shape interior supporting.It is a new bracing foundation pit system that can increase synthetical benifit of foundation engineering.
2000, 14(3): 152-155.
[Abstract](47) [PDF 318KB](5)
Abstract:
This paper has developed a kind of computer aiding systerm which has been successfully used in the representive construction of No.2 subway named Center Garden in Shanghai.It can forecast and calculate the displacement,the subsidence,as well as the next repercussion of excavation.Through monitoring,the calculated results basically agree with the in situ test results.
2000, 14(3): 156-158.
[Abstract](27) [PDF 131KB](7)
Abstract:
Based on a certain engineering project,the design and construction technology of double pipe and double liquid grouting method for leak blockade in deep excavation retaining structure are introduced.
2000, 14(3): 159-161.
[Abstract](46) [PDF 132KB](7)
Abstract:
It is difficult to lower groundwater by using conventional well or deep well in un-draining aquifer at present.This problem can be well solved by radial well.Through an engineering case,the concept,design,construction and the result of lowering groundwater by radial well in un-draining aquifer are introduced in detail.
2000, 14(3): 162-165.
[Abstract](50) [PDF 194KB](8)
Abstract:
Runway is one of the most important projects in the first phase construction of Shanghai Pudong International Airport.Based on the data obtained by geotechnical investigation,bearing capacity and settlement of runway are analyzed using both the code proposed method and numerical modelling technique.Especially the effect of paleochannel to runway settlement is analyzed.
2000, 14(3): 166-169.
[Abstract](51) [PDF 171KB](5)
Abstract:
The relation between the bearing capacity and compacting energy is given after the collapsible loess is treated using dynamic compaction.It can be used as a reference in engineering practices.
2000, 14(3): 170-173.
[Abstract](28) [PDF 318KB](4)
Abstract:
The probable causes of cracks of Luoyang University adult education building in the first and second floor are pointed out and analyzed.The methods to deal with the cracks are proposed.
2000, 14(3): 174-179.
[Abstract](45) [PDF 244KB](5)
Abstract:
Precompressed pile foundation under pinning technique is used to reinforce the foundation and structural wall for adding the building named Xibei hotel from two floors to seven floors in Xian city.Now the guest room building has been used normally for three years.The practice indicates that the reinforcement is successful.
2000, 14(3): 180-182.
[Abstract](37) [PDF 134KB](5)
Abstract:
Based on the Coulomb's law,the lateral friction of prefabricated concrete piles is computed by adopting effective stress and cohesive shear strength.Compared with a lot of data of pile tests,it is shown that the method has some practical value.
2000, 14(3): 183-185.
[Abstract](30) [PDF 269KB](7)
Abstract:
The pile dugged by hand has been widely used in high rise building foundation treatment in recent years.Combined with the construction practice of Meiliyuan in Shenzhen,the design and construction technology of this pile style in the aged city area and on the break rock formation with plenty of water are introduced in detail.
2000, 14(3): 186-187.
[Abstract](24) [PDF 201KB](4)
Abstract:
Bedrock bench mark is an important surveying datum mark of land subsidence monitoring and height control.Design principle and construction technology of big-calibre bedrock bench mark of shaft style are presented.

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