jack pile การใช้

• Calculating method of anchor jacked pile while sinking
• Working mechanics and applications of anchor static jacked pile
• Numerical analysis of jacked pile driving
• Calculating jacking resistance of jacked pile by using beating counts of standard penetration test
• This paper introduces the technique about pit - jacked pile and building correction to replace by rising
• Pit - jacked pile is a new technique as building reinforces and it has some special advantages
• This paper will expatiate the interaction theory in pile and soil , make elastic - plastic analysis for soil around pit - jacked pile
• So it is important for engineering application that compacting effects of jacked pile are effectively predicted and construction measures that can decrease the compacting effects of jacked pile are taken
• This technique is widely used by many years " popularization . now pit - jacked pile can be applied in some other projects such as correction , ground strengthening and temporary shoring
• The expressions of displacement fields of dorsal and frontal surface for two piles , row piles and group piles are derived . the solution taking into consideration the effect of construction sequence of jacked pile accords with the actual engineering
• Jacked pile is widely used because of its various advantages such as noiseless , vibrationless , no impact and minor construction stress . however , the obvious compacting effects caused by the penetration of jacked pile may have severe influence on surrounding engineering environment
• This thesis in the paper will play a great role in popularizing anchor jacked pile . in this paper , the research of anchor jacked pile is still in its elementary phase , more work should be done to improve it in the future so as to guide the practical engineering
• This paper respectively uses the method of expansion of cavity and fem to analysis the soil compaction effect of anchor jacked pile while sinking , and compares the calculation result of the two methods by combining effect is valuable to the application of engineering
• Thirdly , some shortcomings that numerical simulation ca n ' t effectively applied in jacked pile are proposed . several problems need to be resolved in numerical simulation of jacked pile ; for instance , finite deformation problem , constitutive model of soil , contact between pile and soil and loading problem
• Anchor jacked pile is a new technique researched by ourselves for building reinforce and has some strongpoint others have not . twenty years " popularization makes this technique widely used . now anchor jacked pile can be applied in some other project such as correction , ground strengthening , pile foundation ' s top - down construction in newly built building
• As a new technique , few people are familiar with it . this paper will research the technique of pit - jacked pile and building correction to replace by rising , including its developmental history , technique characteristics , advantages , construction process , applied scope , present condition and existent problems in sphere
• According to the fact that the penetrate mechanism of static sounding penetration and static jacking pile is similar , we obtained the predict formula of the static jacked resistance of the precast piles after comparing several engineerings , and can use it in the construction of the precast piles
• Elastic - plastic analysis for soil around anchor jacked pile in this paper , the course of penetration is regarded as expansion of cylindrical cavity in infinite soil mass . combining with the knowledge of elastic mechanics and plastic mechanics , we can make analysis for soil around pile . finally , we can educe the cylindrical cavity pressure , radius of plastic zone , radical displacement in elastic zone , excess pore water pressure in soil around pile and spherical cavity pressure at the end of pile
• Hi spite of twenty years " usage in engineering , anchor jacked pile bases on no compellent theory . this paper works primarily in the following aspects : 1 . introduction of anchor jacked pile as a new technique , few people realize it . this paper will introduce anchor jacked pile about its history , strongpoint , construction course , research status quo and some existent problems
• The integrate expressions of large strain are deduced by means of spm . and the difference of the soil compacting effects in the condition of large strain and small strain is analyzed . secondly , according to the analytical expressions of single jacked pile , the displacement fields of subsequent jacked pile due to the presence of adjacent pile are obtained