A Calculation Method for Embedded Pile with Prestressed Anchor Cable
A technology of prestressed anchor cables and calculation methods, applied in sheet pile walls, buildings, geometric CAD, etc., can solve problems such as the risk of soil overtop, achieve the effects of reducing the internal force of the pile body, reducing the cost, and changing the pile length
Active Publication Date: 2021-07-02
HENAN UNIVERSITY
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Problems solved by technology
[0004] For the shortcomings in the above-mentioned background technology, the present invention proposes a calculation method for embedded piles with prestressed anchor cables. According to the Mohr-Coulomb failure criterion of soil and the limit equilibrium method, the calculation complexity is reduced, and the problems of buried piles in the prior art are solved. Technical Problems of the Risk of Exceeding Soil on Top of Pile Piles
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[0059] As a specific example, the basic characteristics and basic control measures of the 1# landslide at the Friendship Bridge in Zhangmu Port, Tibet:
[0060] Friendship Bridge 1# landslide is located under the peak of Zamarigang Mountain in the southwest of Zhangmu Port in Tibet Autonomous Region, on the left bank of the lower reaches of Boqu River, and on the mountain side of Sherpa Street. The terrain is undulating, the mountains are high, and the slopes are steep. Judging from the topography, the terrain where the landslide is located is concave, with a clear perimeter, and the landslide is in the shape of a "tongue" on the overall plane. The shear outlet of the front edge of the landslide is located near the riverbed of the Boqu River, with an elevation of 1840-1900m. The elevation of the trailing edge is 2350-2360m from the trailing edge to the middle and upper part of the slope where the terrain changes steeply and gently. The maximum height difference between the fron...
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The invention proposes a calculation method for embedded piles with prestressed anchor cables. The steps are as follows: firstly, the embedded piles and anchor cables are regarded as a whole, and then according to the existence of passive soil pressure fracture surface sliding and The pile top slides, establishes the passive soil pressure rupture surface equilibrium equation and the pile top surface equilibrium equation, and calculates the length of the buried pile above the sliding surface; finally, calculates the maximum shear force and maximum bending moment. According to the Mohr-Coulomb failure criterion of the soil and the limit equilibrium method, the present invention reduces the calculation complexity of the prestressed anchor cable embedded pile, changes the pile length of the loaded section, reduces the internal force of the pile body, and can be compared with the anchor cable ordinary pile. It also bears a larger thrust, which can save pile materials and reduce construction costs, and provide a reference for the treatment of super-large landslide disasters encountered in important engineering construction in our country.
Description
technical field [0001] The invention relates to the technical field of embedded piles, in particular to a calculation method for embedded piles with prestressed anchor cables. Background technique [0002] The retaining structure is an important measure often used in the prevention and control of landslides, and plays a decisive role in the safety of engineering construction. The retaining wall is the earliest retaining structure used in landslide prevention and control. The retaining wall mainly relies on its own gravity and the friction of the wall bottom to bear the thrust of the landslide, generally within 1000KN; The anchoring effect in the stable stratum is used to balance the thrust of the landslide. The greater the thrust, the larger the design of the pile section and the longer the anchorage section. The thrust of the landslide is generally within 2000KN; the prestressed anchor cable anti-slide pile was applied in the 1980s The most common form of the developed ant...
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IPC IPC(8): G06F30/13E02D5/76
CPCE02D5/76
Inventor 王浩岳建伟张建伟吕芝莹汪鹏
Owner HENAN UNIVERSITY