2002 Vol. 16, No. 6

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Display Method:
the Formation Mechansism and Treatment Measure of the Motive Sand-flood of Cuona Lake on Qingzang Railway
2002, 16(6): 311-314,360.
[Abstract](43) [PDF 216KB](3)
Abstract:
Through analyzing the distribution and formation mechanism of the motive sand-flood of Cuona lake on Qingzang railway,putting forward a rational line-determnation principle and a series of engineering treatment measure,in order to decrease the damage of wind and sand to the railway at least.
the Method for Confirming the Natural Permafrost Table in Gela Section of Qingzang Railway
2002, 16(6): 315-318.
[Abstract](36) [PDF 168KB](2)
Abstract:
It is seasonal thawing layer nearby natural permafrost table offecting the building stability in permafrost area.It is important work to confirm the position of natural permafrost table and grasp its change law.Introducing the exploring method of natural permafrost table in Qingzang railway.
Study on the Methods of Geotechnical Investigation and Surveying on Quaternary Loosen Soil in Yaluzangbu River Valley
2002, 16(6): 319-321,344.
[Abstract](24) [PDF 359KB](2)
Abstract:
The methods of geotechnical investigation and surveying on the quaternary loosen soils is researched systematically,based on several major projects in the Yaluzangbu River valley,which is instructive to building in Xizang region.
Analysis of Landslide Reason and Mechanism for An Impounding Soil Dam
2002, 16(6): 322-325.
[Abstract](39) [PDF 340KB](1)
Abstract:
The landslide reason and mechanism of an impounding soil dam are analyzed, and the results show that the unhomogeneous soil structure and water seepage are two important influencing factors on the dam stabilization. Some suggestions and treatment methods are given for the construction and management of similar impounding soil dam.
Analysis for the Quality Target and Quality Control of Impervious Earth of Xiao Langdi Dam
2002, 16(6): 326-329,356.
[Abstract](45) [PDF 209KB](1)
Abstract:
Yellow River Xiao Langdi water control project is an important project about the regulation and development of Yellow River. Because of the geology condition of the dam address, the Soil-Stone dam is adopted. Therefore,the construction quality control of impervious earth is essential for the quality and secure running of the dam. The quality target and the spot quality control of impervious earth are analyzed.
Experimental Research for the Measuring Accuracy of A New Type of Rubber Balloon with Water Volumometer
2002, 16(6): 330-333.
[Abstract](33) [PDF 327KB](2)
Abstract:
The organization and principle of the new type of rubber balloon with water volumometer are introduced. Its measuring accuracy and effect on dry density are studied by tests with standard jar in lab. It is suggested that the development of the volumometer should be succeeded.
Calculation for Undrained Shear Strength of Saturation Cohesive Soils Using Flat Dilatometer
2002, 16(6): 334-337.
[Abstract](35) [PDF 306KB](4)
Abstract:
Through comparing the undrainde shear strength determined by laboratory tests with that by DMT horizontal stress index KD,make a conclusion that Marchetti's equations concerning the evaluation of undrained shear strength are applicable to soft cohesive soils in Shanghai district,and the dilatometer modulus ED has linear relativity with undrained shear strength.
Engineering Application of Superficial Foundation on Slope of Swelling Soil
2002, 16(6): 338-340.
[Abstract](34) [PDF 134KB](1)
Abstract:
With an engineering example, the superficial foundation are applied on slope of swelling soils after the groundwork measurements according to the characteristic of the engineering.
Application of Soil Nailing for Excavation Retaining in Sand and Cobble Fill
2002, 16(6): 341-344.
[Abstract](30) [PDF 167KB](3)
Abstract:
According to the engineering practice of the application of soil nailing for the excavation retaining in sand and cobble fill,inferaucing the problems in the construction of soil nailing,such as grouting methods and treatment of air-raid shelter.Putting forward some proposals in excavation and investigation of geotechnical engineering.
Reserch and Application of Fill and Ramming Compaction Test in West Area of Henan Province
2002, 16(6): 345-348,351.
[Abstract](36) [PDF 356KB](4)
Abstract:
Analyzing the fill and ramming compaction test results of the three different construction sites in Sanmexia, Luoyang and Xinan in west area of Henan province,and giving some suggestions about the application of these results.
Defect and Improvement for YKC-22 Percussion Drill Used as Tamper
2002, 16(6): 349-351.
[Abstract](35) [PDF 273KB](3)
Abstract:
Analyzing the existing defects of YKC-22 percussion drill used as tamper in dynamic compaction pile construction,giving a improvement method.
Application of High Pressure Jet Grouting Techinique in Seep-preventing for the Dam Foundation
2002, 16(6): 352-356.
[Abstract](37) [PDF 394KB](1)
Abstract:
The technique of high pressure jet grouting is adopted to solve the leakage of the dam foundation of Gongshang reservior. Making a series of studies,such as boring 83 meter hole,crossing the central core clay wall,controlling the slope of hole Renovating the boring technique,improving the high pressure jet equipment and technique and enlarging the applied scope of high pressure jet technique.
Multi-method for Slant Rectifying by Water-jet & Shallow Ground-water after Jacking Pile and Its Application
2002, 16(6): 357-360.
[Abstract](37) [PDF 343KB](1)
Abstract:
At first,preventing the development of the inclination at the tilting building's one side whose settlement is bigger than the other's with the reinforcement of static-pressure anchorage pile,then scouring and disturbing the soil under the foundation of the building at the other side with high-pressure water,and combining shallow ground-water at the same time,the way related above is a feasible slant rectifying method Practice proves that this method is safety,cheap,effective,and has certain value of application and dissemination.
Research on the calculating Method for Frictional Resistance of Cast-in-place Underwater Piles
2002, 16(6): 361-363,367.
[Abstract](45) [PDF 178KB](3)
Abstract:
By analysis of the mechanism of frictional resistance of bored pile, suggesting a calcalating method for the frictional resistance.
Precaution Against the Stopped up Pipes Accident during Piles Construction and Its Treatment
2002, 16(6): 364-367.
[Abstract](50) [PDF 330KB](2)
Abstract:
Analyzing the reasons which cause the stopped up pipes during bored piles construction,introducing some precaution measures and treatment methods.
Quality Problems and Rehabilitation of Cast-in-Place Pile Revealed in Core-drilling Test
2002, 16(6): 368-371.
[Abstract](30) [PDF 345KB](5)
Abstract:
Some familiar quality problems of cast-in-place pile revealed in core-drilling test are analyzed,and a rehabilitation method of pressure grouting is introduced.

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