Discussion On Pile Internal Force Calculation Method And Related Issues Of Anchorage Cable Pile Sheet Wall In High Embankment

The paper mainly deduces the computing method of pile internal force,when prestressedanchor cable sheet wall is used as high embankment retaining structure, corrects the methodconsidering two rows anchor deformation coordination and displacement of loaded part. Itdivides the strained condition into several stages combining the construction process of highembankment anchor sheet wall, then calculates the pile internal force by stage, and putsforward a method to ensure the best interaction site of anchor rope. At last, do somecalculation and analysis combined with examples.The first chapter summarizes the major damage types of high embankment and the mainprevention and control measures, further summarizes the high steep embankment mainprevention and control measures, the prestressed anchor cable sheet wall has the advantage ofhigh cantilever height, small disturbance to slope, so it has been widely used. The domesticresearches about this kind of structure mainly focus on the following four aspects: the pileboard calculation method, ensure the tension size of anchor cable and role position,construction process and discussion upon working condition, the calculation of wall relativelypressure. The author mainly puts forward four problems to be solved:1. Using the rigid pileangle displacement method for calculating the pile internal force, we do not consider thedeformation coordination of two rows of anchor, but multiple the two rows of anchor cable asa row of anchor cable.2. No consideration of the pile displacement at the bottom of theloaded part.3. The initial design does not calculate the pile internal force based on theconstruction process t.4.How to determine the best position of Anchor role.In chapter2, this paper briefly expounds the application condition of rigid pile anglemethod and pile load calculation.In the third chapter，deduces the rigid pile Angle deflection method (pile of pile body alittle turn around the situation), and consider the deformation coordination of two row anchor,modifies the charge lower calculation method for displacement, and makes an electronicform.The fourth chapter, divides the stress process into several stages combined withconstruction process, giving the detailed answers of the internal force calculation by stage,and also makes an electronic form.Chapter5Based on anchor sheet wall construction process, puts forward a line or tworows of anchor cable anchor role method to determine the best position, and gives theanalytical solution to the anchor pile top position.Chapter6Do some calculation of a worksite using the electronic form, and analyzes thecalculated results are. From the example analysis, we can see: the construction process ofinternal force will be greater than the final state of the pile internal force, so we shouldconsider this point when design it; It is not better when anchor rope is closer to pile top. Thecalculation results are consistent with the anchor method to determine the best position.Through the calculation of the anchor role, we find out the best position, and it is better thanthe original design.