Inner supporting structure capable of solving pit bias problem in deep and shallow foundation pits

Abstract

The invention discloses an inner supporting structure capable of solving a pit bias problem in deep and shallow foundation pits. The inner supporting structure capable of solving the pit bias problem in the deep and shallow foundation pits comprises a base, wherein a rotating disc is rotationally connected to the base, a fixed cavity is rotationally connected to the end, away from the base, of the rotating disc, a movable cavity is slidably connected into the fixed cavity, and a rotating shaft is in threaded connection in the movable cavity; the rotating shaft is fixedly connected to the rotating disc, a hydraulic cavity is fixedly connected to the upper end of the movable cavity, two fixing blocks are fixedly connected into the hydraulic cavity, springs are fixedly connected to the two fixing blocks and the two sides of the hydraulic cavity correspondingly, and hydraulic plugs are fixedly connected to the ends, away from the hydraulic cavity, of the springs; the hydraulic plugs are slidably connected in the hydraulic cavity, the two hydraulic plugs are fixedly connected with hydraulic columns correspondingly, and the hydraulic columns penetrate through the hydraulic cavity to be fixedly connected with push plates. Through extrusion of hydraulic devices, the push plates and supporting plates move towards the two sides correspondingly, fixing nails on the supporting plates penetrate into a wall of a foundation pit, and supporting effect is achieved with large force.

Description

technical field [0001] The invention relates to the technical field of foundation pit internal support, in particular to an internal support structure capable of solving the problem of pit bias in deep and shallow foundation pits. Background technique [0002] my country is a big country in infrastructure construction. With the development of national strength, many expressways and municipal highways have been built. Whether it is housing construction or municipal construction, the most important thing is infrastructure construction. The pipeline is laid by excavating foundation pits. Due to the vast territory of our country , The strength of the soil composition is different. Obviously, the excavation of the foundation pit is very easy to collapse when it encounters soft soil, so the support in the foundation pit is often used to prevent the collapse of the excavation wall. [0003] The support structures in the existing foundation pits are often of a fixed support height. D...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art. Since there are many mountainous areas in our country, the depth of the trench is different when the level height of the excavation pipeline trench is not changed, which leads to the support structure in the existing foundation pit. It is impossible to make corresponding support changes according to the depth of the foundation pit, but an internal support structure that can solve the problem of pit bias in deep and shallow foundation pits is proposed

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