Earth excavation method for small foundation pit

A technology of earthwork excavation and small-scale foundation, which is applied in excavation, infrastructure engineering, construction, etc. It can solve the problems of narrow and small working space of earthmoving machines and achieve the effect of improving the efficiency of excavation

Active Publication Date: 2016-03-23
CHINA CONSTR EIGHT ENG DIV CORP LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In order to overcome the defects existing in the prior art, a method for earthwork excavation of a small foundation pit is provided to solve the p

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  • Earth excavation method for small foundation pit
  • Earth excavation method for small foundation pit
  • Earth excavation method for small foundation pit

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Embodiment Construction

[0022] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0023] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not intended to limit the present invention Therefore, it has no technical substantive meaning, and any modification of structure, change of proportional relationship ...

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Abstract

The invention provides an earth excavation method for a small foundation pit. The earth excavation method comprises the steps that a first layer of earth is excavated from the middle to the two sides, and meanwhile a foundation pit support is arranged; after an excavator work surface is excavated out through the first layer of earth, a second layer of earth is excavated from the middle downwards till an excavator work surface of the second layer of earth is excavated out, and meanwhile a foundation pit support is arranged; after excavation of the first layer of earth is finished, the foundation pit support of the excavator work surface of the second layer of earth is demounted, the second layer of earth is excavated through the excavator work surface of the second layer of earth, and meanwhile a foundation pit support is arranged; and the steps are repeated till excavation of the foundation pit is finished. The problem that in the excavation process of the small foundation pit, earth excavator work space becomes narrower due to a support structure is solved, and earth excavation efficiency is further improved.

Description

technical field [0001] The invention relates to the field of building construction, in particular to an earthwork excavation method for a small foundation pit. Background technique [0002] The foundation pit is an earth pit excavated at the foundation design position according to the base level and foundation plane size. Before excavation, the excavation plan should be determined according to the geological and hydrological data, combined with the conditions of the nearby buildings, and the waterproof and drainage work should be done well. If the excavation is not deep, the side slope can be used to stabilize the soil slope, and the slope size is determined according to the relevant construction regulations. For those with deep excavation and nearby buildings, the foundation pit wall support method, shotcrete retaining wall method, and large foundation pit even adopt methods such as underground diaphragm wall and column-type bored pile interlocking to prevent the outer soi...

Claims

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Application Information

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IPC IPC(8): E02D17/02
CPCE02D17/02
Inventor 杜高帅侯海芳周强杨凯
Owner CHINA CONSTR EIGHT ENG DIV CORP LTD
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