2002 Vol. 16, No. 3

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Display Method:
the Engineering Geological Features of the Mud Seam in Suodagan Dam Region
2002, 16(3): 125-130,143.
[Abstract](56) [PDF 482KB](5)
Abstract:
On the base of a great deal of geological exploration and researching materials,studying a series of problems about the mud seam in Suodagandam region,such as types,distribution regularity,granutarity composition,general physical features and testing methods, puting forword the proposal index value of shearing resistance.
the Calculation of the Lateral Pressure on Rock Construction Slope
2002, 16(3): 131-134.
[Abstract](30) [PDF 170KB](8)
Abstract:
Based on the characters of rock construction slope with the assumptions that the slide surface is straight line,deducing the lateral pressure of inclined slope and two-step slope by limit equilibrium methods,establishing a general formula of the lateral pressure The formula can be used to strengthen the slope with anchors.
the Evaluation of Slope Stability Based on Soft-computing and It's Realizing
2002, 16(3): 135-139,151.
[Abstract](47) [PDF 432KB](5)
Abstract:
According to L·A·Zadeh's soft-computing theory,proposing and completing a sotf-computing stability analysis method based on the integration of language value structure and neural network(SOM-BP).The method not only can be used to the stability analysis of slope,but also be suitable for the general evaluation,classification and forecasting in geotechnical engineering with uncertainty information.The effectiveness of the method are proved in this paper based on the theory analysis.
the Effect of Soil Shearing strength Index on Slope Stability
2002, 16(3): 140-143.
[Abstract](33) [PDF 170KB](11)
Abstract:
The various rules of the shearing strength index due to different consolidation state of clayey soil is discussed.The influence of the soil shearing strength index on slope stability is recommended,and the inducing factor of rainfall on formation cracking and slip failure in the surface of slope is presented.
Application of slide-resisting Piles in the Design of Retaining Wall
2002, 16(3): 144-151.
[Abstract](41) [PDF 522KB](7)
Abstract:
The whole stability of the retaining wall built on soft soil can not meet requirements of the design of-ten.Therefore,the slide-resisting piles are supposed to set up under the retaining wall for resisting soil slide.
Study on Deformation Modulus of the Desert Sand
2002, 16(3): 152-155.
[Abstract](53) [PDF 171KB](7)
Abstract:
On the basis of study on the desert sand through a lot of field in-situ tests and laboratory simulation in-situ tests,CPT and SPT are used to get the empirical formulae about deformation modulus qc-E0 and i>N-E0.Furthermore, the two formulae are tabulated. According to above empirical formula,field and laboratory settlement is back calculated. The result shows the linear formulae of qc-E0 and i>N-E0 are in accord with the deformation property.
the Engineering Geological Feature of Sand in Desert Region
2002, 16(3): 156-157.
[Abstract](32) [PDF 99KB](7)
Abstract:
According to some engineering practices in desert region,introducing the engineering geological feature of sand in desert region,such as,composition,pysical property,mechanical property and vibrational liquifation property.
Influence of Disturbed Samples on Soil Natural Strength Parameter and It's Treatment
2002, 16(3): 158-162.
[Abstract](55) [PDF 333KB](9)
Abstract:
Based on the comparing test among unconsolidated-undrained triaxial test, undrained triaxial test under equivalent consolidated condition and undrained triaxial test under K0 consolidated condition of the clay and sand in north anchor of RUNYANG big bridge,studying the influence of disturbed samples on natural strength parameter,the pretreatment method of resuming natural stress status of samples,analyzing the strength parameter of soil samples from different diameter samplers.
Application of Flyash in Building Ground Treatment
2002, 16(3): 163-166.
[Abstract](52) [PDF 301KB](5)
Abstract:
A project example in which flyash is used in ground treatment is introduced.The optimum mixture ratio of lime-flyash-soil cushion is determined through the analysis of physical and mechanical properties of lime-flyash-soil samples with different mixture ratios. Field compaction test is done under the optimum mixture ratio.Field bearing tests show that this treatment method is successful.Lime-flyash-soil cushion is prominently economical and worth popularizing.
Some Discussion on Composite Ground with Rigid Pile
2002, 16(3): 167-171.
[Abstract](56) [PDF 368KB](5)
Abstract:
Some problems about composite foundation with rigid piles are discussed,Such as its application in subsidence loess foundation,the principle of cushion setting and the compsite ground bearing capacity amend.
The Ground Treatment Mechanism of Gravel Piles Acting on Sandy Soil and Clayey Soil
2002, 16(3): 172-174,179.
[Abstract](41) [PDF 166KB](5)
Abstract:
Through checking gravel piles of Xusu motorway in Jiangsu province,using original data of checking soil among them,observing the effects of them acting on sandy soil and clayey soil,analysing factors of gravel piles improving sandy soil and clayey soil.
The Experimental Research of Ram-Compaction Piles with Composite Bearing Base in Cobble Layer
2002, 16(3): 175-179.
[Abstract](33) [PDF 372KB](5)
Abstract:
By analyzing the in-site data of ram-compaction piles with composite bearing base in cobble layer,puting some viewpoints about bearing behavior,failure mode,ram compaction body's structure feature and mechanics feature.Pointing out the vertical bearing capacity of it can be controlled by pile shaft material,giving some suggestions to design.
Analysis and Experimental Study of Cast-in-place Piles Embedded Rock
2002, 16(3): 180-184.
[Abstract](25) [PDF 346KB](9)
Abstract:
The cast-in-place piles embedded rock are one of the foundation treatment methods in present buildings.However,the theoretic research and experimental study are far behind the engineering application.Based on the part of the field testing datum in Nanjing area,analyzing the bearing characteristic of the cast-in-place piles embedded rock.
Analysis of Frozen and Melt Testing Machine and Range Finding Precision
2002, 16(3): 185-187.
[Abstract](29) [PDF 261KB](3)
Abstract:
Frozen and melt test is advisable,but when frozen and dilated soil melts,the bottom of the frozen and melt tube touches indoor floor which is not completely in conformity with the law of simulated ature melt,in order to avoid this case,increasing the bottom of preventive heat tube,meanwhile,improving the range finder and calcalating method,enhancing the calculating precision.The result is more suitable to design.

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