A Construction Technology of High Polymer Gravel Segment Wall Retaining Permeable Pile

Abstract

The invention discloses a permeable pile with high polymer crushed stone segmental wall protection, which comprises a crushed stone pile body, and the outer wall of the crushed stone pile body is wrapped with several sections of high polymer crushed stone wall protection. A corresponding construction method is also disclosed. Compared with ordinary gravel piles, the permeable pile of the present invention is constrained by the retaining wall, and will not be bulging and damaged, which reduces the dependence on the surrounding soil to provide restraint bearing capacity, and has a higher single pile bearing capacity. The scope of application is wider; compared with reinforced gravel piles, the pile body can be reinforced in a targeted manner, and the strength of the gravel retaining wall is higher than that of geosynthetic materials, and it can play a role without pile body swelling, which can obviously restrain the pile body. Bulging, effectively controlling the pile diameter; compared with the existing high polymer gravel piles, the pile body greatly reduces the use of high molecular polymers, and under the condition that the bearing effect of the lower part of the pile body is controllable, the construction cost is significantly reduced ; The construction process of the present invention is simple, the application range is wide, the quality is controllable, the construction period is short, and the cost is low.

Description

technical field [0001] The invention relates to a permeable pile with sectioned high polymer gravel retaining walls and a construction technique thereof, which belongs to the technical field of foundation treatment. Background technique [0002] In my country's southeast coast and inland plains, soft soils with high natural water content and low shear strength are widely distributed. Gravel piles, reinforced gravel piles and high polymer gravel piles are two common types of foundation reinforcement piles in soft soil foundation treatment technology. Among them, the crushed stone pile has the advantages of simple construction, fast speed, and convenient material collection, and its water permeability is good, but its single pile bearing capacity is low, and the pile body is prone to bulge damage; The stone pile is placed in the geosynthetic material, which can prevent the pile body from bulging and damage, does not affect the drainage performance of the pile body, has high s...

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Problems solved by technology

Among them, the crushed stone pile has the advantages of simple construction, fast speed, and convenient material collection, and its water permeability is good, but its single pile bearing capacity is low, and the pile body is prone to bulge damage; The stone pile is placed in the geosynthetic material, which can prevent the pile body from bulging and damage, does not affect the drainage performance of the pile body, has high strength, improves the bearing capacity of the composite foundation, and is easy to construct. According to the working characteristics of the geosynthetic material, the lower part of the pile body There is almost no bulging, so the lower geogrid cannot play its due role, and the upper part of the pile body bulges obviously, which is easy to exceed the limit of the bearing capacity of the geogrid and damage the geogrid; the polymer crushed stone pile is made of polymer It is made by mixing with crushed stone particles. It does not need to rely on the constraint of the surrounding soil on the crushed stone to provide bearing capacity. It relies on its own overall rigidity to bear the load. It has a high single pile bearing capacity, is suitable for a variety of foundations, and is easy to construct. However, this The lower part of the pile body cannot play its due role, and the cost is relatively high

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