Manufacture method for concrete irregular fender post

Abstract

The invention provides a manufacture method for a concrete irregular fender post, which belongs to the field of building and particularly relates to a fender post used for retaining soil and water and applied to a deep base pit project. The novel concrete irregular fender post is provided with a reserved hole. The cross section of a novel concrete maintaining post is approximately in a shape of a parallelogram, two semi-circular grooves are arranged on one inclined side, and two semi-circular protruding ribs are arranged on the other inclined side. The novel concrete irregular fender post is a prefabricated post, is good in compaction, anti-permeability and lateral pressure resisting capacity, and does not need repairing. The novel concrete irregular fender post is simple in construction method, connection between posts is compact, time is saved, labor is saved, a construction cycle is short, and a water retaining and soil retaining effect is better.

Description

technical field [0001] The invention relates to a preparation method of an enclosure pile, in particular to a preparation method of an enclosure pile with a reserved hole and grooves and convex ribs on the hypotenuse. Background technique [0002] With the development of urbanization, urban underground transportation and high-rise buildings are constantly developing and constructing, and the construction of deep foundation pits is gradually increasing. It is inevitable to encounter various engineering accidents during construction, such as leakage of foundation pit maintenance structures. In recent years, maintenance structure engineering has made rapid progress in construction methods, but little progress has been made in water sealing. Some construction methods are more risky due to difficult conditions of use. The traditional deep foundation pit treatment has been used in engineering for many years. As the application becomes more and more extensive, the disadvantages are...

AI Technical Summary

Problems solved by technology

[0003] The underground diaphragm wall is suitable for water-saturated weak strata, such as water-saturated sand layers, saturated silt soil layers, etc. In such soil layers, the underground diaphragm wall can effectively block groundwater and have a relatively stable structure, but its cost is very high. It is suitable for key municipal projects, and at the same time, the construction of the last closed continuous wall will generally cause collapse

Manual excavation piles, bored piles and percussive piles all use row pile walls to retain soil and waterproof, and realize foundation pit maintenance, but they are not suitable for deep foundation pit engineering because of poor quality control. Stable, and the fine cracks between piles should not be controlled, which is easy to cause water and soil loss, especially in areas with high water level and soft clay soil, appropriate construction measures should be taken according to engineering conditions to solve the problem of water retention, and pile crowns need to be passed between piles Liang and Weitan form a whole, which is relatively poor in integrity

The SMW construction method pile is to insert H-shaped steel or other types of stiff materials into the cement-soil mixing pile to enhance the bending and shearing resistance of the cement-soil mixing pile. Although this method is faster than the underground diaphragm wall, it occupies less land. However, its engineering cost is relatively high compared with the surrounding protection piles, the amount of steel used is large, and the construction process is complicated

The deep-mixed cement-soil enclosure wall has dual functions of retaining soil and water-stopping, but its displacement is relatively large, especially when the length of the foundation pit is large, and attention should be paid to prevent the surrounding environment from being affected during the construction of the cement-soil mixing pile

Steel sheet pile is a commonly used underground maintenance structure pile. Although the bearing capacity is high, but the pile diameter is small, it is not suitable for deep foundation pit maintenance engineering, and its engineering cost is high, the engineering quantity is large, the soil retaining pressure bearing performance and water stop The effect is not as good as the fence pile

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