Method for stabilizing roadbed by adopting combined anti-slide pile and combined anti-slide pile
An anti-slide pile, combined technology, applied in the field of anti-slide pile structure, can solve the problems of poor shear resistance, easy bending, overturning, etc., and achieve the effect of improving the overall performance, reasonable structure, and good anti-sliding effect
Pending Publication Date: 2018-09-14
云南建投中航建设有限公司
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Problems solved by technology
The anti-slide piles in the above-mentioned prior art are all single square piles, or changed to variable cross-sections where the bending moment is large, the stress will be more concentrated, the shear resistance is poor, and it is easy to bend and overturn when the landslide body increases
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[0033] The method of the present invention will be further described below in conjunction with the accompanying drawings.
[0034] Such as figure 1 As shown, the subgrade of this specific embodiment is a high fill subgrade, and the subgrade road section is close to the reservoir, and the constant water level 7 is shown in the figure. Pile 1, the round pile body is embedded at least 5 meters below the weakly differentiated layer, and the height of the round pile is higher than the sliding surface of the subgrade. 1 Square piles 3 equal in number and vertically corresponding to the round piles. The height of the square piles 3 is basically equal to the road surface 8. The round piles 1, waist beams 2 and square piles 3 form a combined anti-sliding pile. The gap between the combined anti-slide pile and the road surface is filled with gravel filler 5, and a soil retaining plate 6 is arranged near the side of the anti-slide pile to prevent falling of gravel. In this specific embo...
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The invention provides a method for stabilizing a roadbed by adopting a combined anti-slide pile. The method is characterized in that a plurality of circular piles are arranged under the slide surfaceof the roadbed, the upper ends of the circular piles are connected through a waist beam, square piles of which the number is equal to the number of the circular piles are connected to the upper sideof the waist beam, and the combined anti-slide pile is formed, wherein the central axis of each circular pile coincides with the central axis of the corresponding circular pile under the waist beam. The invention further provides a structure of the combined anti-slide pile. The combined anti-slide pile comprises the circular piles, the waist beam and the square piles in sequence from bottom to top, wherein the upper ends of the circular piles are connected with the lower bottom surface of the waist beam, and the lower ends of the square piles are connected with the upper bottom surface of thewaist beam. By adopting the circular pile, waist beam and square pile combined section mode, the overall performance of the anti-slide pile can be greatly improved, the shear force of the landslide surface of the roadbed can be effectively resisted, and then the highway roadbed of a reservoir bank can be stabilized.
Description
technical field [0001] The invention relates to the anti-sliding technical field of high-fill roadbeds, in particular to a method for stabilizing roadbeds by using combined anti-sliding piles and an anti-sliding pile structure adopted therein. Background technique [0002] For high-fill subgrades, the highest filling can reach tens of meters, and if the road section is close to a reservoir or a river, affected by the fluctuation of the water level in the reservoir area and the erosion of the river, a shallow landslide surface will be formed on the side of the subgrade near the water , leading to road surface cracking, subsidence, collapse and other phenomena. Reinforced concrete anti-slide piles are commonly used structural measures in landslide control. In the current single-pile design of anti-slide piles, the pile body is usually a straight pile structure, which fails to fully consider the comprehensive utilization of rock and soil before and after the pile and the bendin...
Claims
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Login to View More IPC IPC(8): E01C3/04E02D17/20E02D5/34E02D5/52
CPCE01C3/04E02D5/34E02D5/523E02D17/207
Inventor 范浩然戴建波李达李健李春华牛旭鹏浦绍辉
Owner 云南建投中航建设有限公司