Convenient steel trestle combined with foundation pit inner support and construction method
A construction method and technology for steel trestle bridges, which are applied in infrastructure engineering, excavation, bridges, etc., can solve problems such as increasing the difficulty of earthwork excavation, make up for the increased difficulty of earthwork excavation, facilitate excavation operations, and reduce the possibility of deformation Effect
Pending Publication Date: 2021-08-31
CHINA CONSTR EIGHT ENG DIV CORP LTD
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[0003] The purpose of the present invention is to provide a convenient steel trestle combined with the support in the foundation pit and its construction method, to further supplement the construction trestle and connect two adjacent earthwork islands to facilitate on-site earthwork excavation and transportation, and to make up for the initial construction Insufficient trestle construction leads to increased difficulty of earthwork excavation
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[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0023] Please see attached figure 1 , a convenient steel trestle bridge combined with internal support in the foundation pit, including an internal support arranged on the inner bottom surface of the foundation pit, a plurality of horizontal I-beams 1 are laid on the top surface of the inner support, and a plurality of high-pressure rotary spraying is arranged on the bottom surface of the inner support Column 2, both sides of the inner support are provided with steel sheet piles 3, the bottom surface of the horizontal I-beam 1 is fixedly equipped with supporting steel sheet piles 4, the bottom end of the supporting steel sheet piles 4 is inserted into the ground on the bottom surface of the foundation pit, and the steel sheet The gap between the pile 3 and the side wall of the foundation pit is filled with backfill soil 5 . In this embodiment,...
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The invention discloses a convenient steel trestle combined with a foundation pit inner support. The convenient steel trestle comprises the inner support arranged on the inner bottom face of a foundation pit; a plurality of horizontal I-shaped steel is laid on the top face of the inner support, and a plurality of high-pressure rotary spraying columns are arranged on the bottom face of the inner support in an engaged mode; steel sheet piles are arranged on the two sides of the inner support correspondingly; supporting steel sheet piles are fixedly mounted on the bottom faces of the horizontal I-shaped steel; the bottom ends of the supporting steel sheet piles are inserted into the land of the inner bottom face of the foundation pit; and gaps between the steel sheet piles and the side walls of the foundation pit are filled with backfill. The invention further provides a construction method of the convenient steel trestle combined with the foundation pit inner support. According to the convenient steel trestle combined with the foundation pit inner support and the construction method, excavation operation of on-site earthwork is facilitated, the problem that the earthwork excavation difficulty is increased due to insufficient construction of the trestle in the initial construction stage is solved, and meanwhile, the possibility of deformation of the foundation pit due to the fact that the earthwork excavation time is too long is decreased.
Description
technical field [0001] The invention relates to the technical field of building construction, in particular to a convenient steel trestle combined with support in a foundation pit and a construction method. Background technique [0002] With the rapid development of the construction industry, the depth of foundation pits is increasing day by day. In deep foundation pits in water-rich and soft soil areas with obvious rheology, two or more ring-shaped internal supports are installed in one foundation pit to ensure the support effect. Most of the foundation pits are excavated in the form of islands, and each ring forms an island by itself. However, if there is no connecting channel between the two rings during the excavation process, resulting in the disconnection of the two islands, the excavation will The working condition adjustment will be limited. Contents of the invention [0003] The purpose of the present invention is to provide a convenient steel trestle combined wi...
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Login to View More IPC IPC(8): E02D17/02E02D17/04E01D18/00E02D5/04E02D5/46
CPCE02D17/02E02D17/04E01D18/00E02D5/04E02D5/46
Inventor 周志健张麒高丙山张保国崔爱珍刘艳华黄军华杨志欣姚文山高欢迎曲世宁张士腾
Owner CHINA CONSTR EIGHT ENG DIV CORP LTD