Grille type underground continuous wall construction outer mold and inner mold

Abstract

The invention discloses a grille type underground continuous wall construction outer mold and an inner mold, which comprise a plurality of mouth-shaped molds, a group of connecting plate assemblies are respectively arranged in positions next to the upper edge and the lower edge of the outer side surfaces of two opposite mold walls of the mouth-shaped molds, each group of connecting plate assemblies comprises two connecting plates which are arranged in a eudipleural mode, the connecting plates of the upper and lower mouth-shaped molds are correspondingly spliced to form three transverse clamping grooves, two clamping pieces are arranged in a bifarious mode between the two connecting plates of each group of connecting plate assemblies, and three plugs of the clamping pieces are respectively inserted into the three transverse clamping grooves. The outer mold and the inner mold are used for vertical connection between standard sections of underground continuous wall construction molds, the quantity of the construction molds is increased or reduced, so that the lengths of the molds satisfy support engineering of deep foundation pits with different depths, the normalized production of the construction molds and the flexibility of an engineering application are realized, and the vertical reliable connection of the grille type underground continuous wall construction molds is guaranteed, so that the molds are tightly combined in the processes of pressing into soil and pulling out.

Description

[0001] technical field [0002] The invention belongs to the field of deep foundation pit support engineering and relates to an external formwork and an internal formwork for underground diaphragm wall construction. [0003] Background technique [0004] With the development of urban construction and the development of underground space, foundation pit support engineering gradually presents the characteristics of "big, deep, tight, and close". Large-scale foundation pit projects in my country are mainly concentrated in economically developed areas such as coastal areas and rivers. It is mainly soft soil with rich groundwater content. There are generally buildings, underground pipelines, municipal roads and other environmental protection objects around the project, which have strict requirements on the safety and deformation control of foundation pit support. According to the support depth and soil conditions, the commonly used foundation pit enclosure types include soil nail...

AI Technical Summary

Problems solved by technology

Since the construction mold of the grid-type underground diaphragm wall is double-layered (back-shaped), and the vibration pile sinking and lifting of the mold are involved in the construction, the joints are relatively complicated and require high bearing capacity

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