Supporting structure and excavation method for comprehensive pipe rack foundation pit
A technology of comprehensive pipe gallery and support structure, which is applied in the direction of basic structure engineering, excavation, underwater structures, etc., and can solve problems such as difficult, municipal pipeline damage, and high risk
Inactive Publication Date: 2020-01-10
HONGRUN CONSTR GROUP STOCK +1
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Problems solved by technology
Excavation of pipe gallery foundation pits causes engineering accidents that cause excessive deformation and damage of underground pipelines. Such engineering accidents will not only bring huge economic losses, but also have a relatively large negative impact on society.
However, the excavation of the foundation pit of the comprehensive pipe gallery across the municipal pipeline is more difficult and dangerous, and a little carelessness will cause damage to the municipal pipeline
Method used
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[0037] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing the embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0038] It should be noted that when an element is referred to as being “fixed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only. ...
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The invention relates to a supporting structure and an excavation method for a comprehensive pipe rack foundation pit. The supporting structure is applied to the comprehensive pipe rack foundation pitof an over crossing municipal pipeline segment; two sides of the comprehensive pipe rack foundation pit comprise a first-stage put slope and a second-stage put slope adjacent to each other; the first-stage put slope is connected with a ground surface; the supporting structure comprises a bottom plate located on the bottom part of the foundation pit, a reinforced layer located at the lower end ofthe bottom plate, and four soil nails driven into the second-stage put slope; and grouting reinforcement is adopted. According to the supporting structure and the excavation method for the comprehensive pipe rack foundation pit provided by the invention, a supporting form with the put slopes and the soil nails is adopted on an over crossing segment due to the influence of a below sewage pipeline,and in addition, grouting reinforcement is adopted on the bottom part of the foundation pit on the over crossing segment, so that the structure strength of the periphery of the comprehensive pipe rackfoundation pit of the over crossing municipal pipeline segment is ensured. Through the design of the supporting structure, the construction safety of the over crossing comprehensive pipe rack foundation pit can be ensured, the whole construction process is easy to control, and the construction quality is better.
Description
technical field [0001] The invention relates to the technical field of civil engineering, in particular to a support structure and an excavation method for a comprehensive pipe gallery foundation pit. Background technique [0002] With the rapid advancement of urbanization in China and the gradual transformation of urban functions, the construction of underground comprehensive utility corridors has also become a new driving force for improving the comprehensive carrying capacity of cities, improving the urban ecological environment, and promoting urban economic development. The urban comprehensive pipe corridor project occupies an important position and plays an important role in the process of promoting new urbanization and urban modernization. [0003] Since these underground comprehensive utility corridors are usually located in the center of the city, and have a long length and a large span, it is inevitable to encounter the situation that they are adjacent to municipal ...
Claims
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IPC IPC(8): E02D29/045E02D17/04E02D5/76E02D5/18E02D19/18
CPCE02D5/187E02D5/76E02D17/04E02D19/18E02D29/045
Inventor 石磊陈凌铜陈方民徐长节孙志浩丁海滨
Owner HONGRUN CONSTR GROUP STOCK