Ultrasoft soil brick molding bed auxiliary bearing platform structure and construction method thereof

Abstract

The invention relates to an ultrasoft soil brick molding bed auxiliary bearing platform structure and a construction method thereof. A slope surface and a slope bottom surface are formed on an original ultrasoft soil ground through digging, brick molding bed construction and bedding construction are conducted on the slope bottom surface, and finally bearing platform construction is conducted in the space defined by a brick molding bed and a bedding, wherein the brick molding bed is composed of a ring beam, a brick side wall and an intermediate bearing plate, the brick molding bed in ultrasoft soil sinks continuously under the dead weight action, the intermediate bearing plate is arranged in the brick molding bed to stop the brick molding bed from sinking, the bedding can effectively avoid the situation that a large amount of ultrasoft soil enters the brick molding bed, and slope shotcreting is conducted on the slope surface formed through digging to prevent the ultrasoft soil slope from being damaged.

Description

technical field [0001] The invention relates to a low cap and a construction method, in particular to an auxiliary cap structure and a construction method of a brick tire mold in a supersoft soil foundation. Background technique [0002] Ultrasoft soils are widely distributed in my country's coastal plains, deltas, lake basins, lakes, rivers and other areas. Ultrasoft soils often have the characteristics of high water content, large void ratio, strong compressibility, and weak shear resistance. Therefore, in The construction of low caps on ultra-soft soil faces many difficulties, such as: the flowing ultra-soft soil often penetrates into the caps and affects the quality of the caps, it is difficult to support the caps, and the concrete flows and deforms during the pouring process of the caps Seriously affect the appearance and quality of the cap, and the settlement of the cap is too large during pouring and maintenance. The construction quality of the low-cap foundation is re...

AI Technical Summary

Problems solved by technology

Therefore, in order to solve the many problems exposed above, in the ultra-soft soil area, before the construction of the low cap, the ultra-soft soil must be properly treated in advance. The methods currently used mainly include: shallow solidification method, Mixing method, preloading method, dynamic compaction replacement method, etc., but the above-mentioned treatment methods all deal with the ultra-soft soil in the construction area of ​​the low cap. The treatment period is long, the cost is high, and the efficiency is low. Construction progress of the platform

[0003] There are also many methods that do not carry out soft foundation treatment, directly excavate and leak the pile top on the ultra-soft soil, and then cast the formwork to build the low cap, but this method is difficult to ensure that the super-soft soil is mixed into the cap, which affects the bearing capacity of the cap capacity, and the external shape of the cap has changed. Under the action of the upper flowing concrete, the super soft soil in the lower part deforms greatly, causing the cap concrete to remain outside the cap formwork, resulting in waste of materials and increasing construction difficulty and cost

[0004] To sum up, it can be seen that no matter whether it is pre-treatment of ultra-soft soil or the way of direct form support, it is impossible to solve the construction problem of low cap completely and comprehensively, and it is difficult to guarantee the quality of low cap

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