A formwork trolley for excavating a tunnel with a standard section in a subway section

Abstract

The invention discloses a novel formwork trolley for underground excavation of a subway interval standard section tunnel. The novel formwork trolley mainly includes a variable bracket, a top formwork,a left formwork, a right formwork and an extension formwork. The variable bracket includes a left supporting leg, a right supporting leg, a control main support and an upper roof. The left supportingleg and the right supporting leg are movably connected with the control main support respectively, and the positions of two lifting and shifting grooves on the upper surface of the control main support are each provided with a lifting adjusting plate. The upper roof is connected with the lifting adjusting plates. The lower ends of the left and right supporting legs are each provided with a movingwheel. The top formwork, the left formwork, the right formwork and the extension formwork are connected with the upper roof, the left supporting leg and the right supporting leg correspondingly through a top hydraulic support, a side hydraulic support and an oblique hydraulic support. The device has strong applicability, is convenient to disassemble and assemble, and can be used for lining construction of different lengths according to actual use requirements.

Description

technical field [0001] The invention relates to the technical field of tunnel construction equipment, in particular to a formwork trolley for digging standard-section tunnels in subway sections. Background technique [0002] Nowadays, with the continuous improvement and development of transportation methods, more and more cities are building subways, and subways have brought great convenience to people's travel. In the construction of the subway, there are many tunnels that need to be excavated or constructed. In the tunnel construction, the lining method is often used for construction. The lining refers to the use of reinforced concrete and other materials along the periphery of the tunnel body in order to prevent the deformation or collapse of the surrounding rock. Built permanent support structures. [0003] In tunnel lining construction in recent years, we often use tunnel lining formwork trolleys for construction, which significantly improves construction efficiency an...

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Problems solved by technology

[0003] In tunnel lining construction in recent years, we often use tunnel lining formwork trolleys for construction, which significantly improves construction efficiency and safety. Lining formwork trolleys are mainly composed of formwork and brackets. The brackets are mainly used for load-bearing, and the formwork is based on The tunnel shape design of the required lining; the general tunnel section will not change, if the length is small, the method of steel frame back steel formwork is usually used for construction; but in actual construction, we often go to some length variable Sections need to be re-purchased, which virtually increases construction costs and waste of resources. At the same time, when encountering variable tunnel sections, commonly used construction methods and lining formwork trolleys cannot meet the requirements.

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