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Construction method of earthwork and support engineering for high slope

A technology for engineering construction and slope, applied in basic structure engineering, excavation, construction, etc., can solve problems such as complex geological conditions, large terrain fluctuations, slope deformation, etc. The effect of body displacement

Active Publication Date: 2015-08-05
CHINA CONSTR EIGHT ENG DIV CORP LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, during the construction of earthwork excavation and support projects for high and large mountain slopes, expressway slope support projects, earthwork excavation and filling of large public sites, and slope support projects, due to the large undulations of the terrain and complex geological conditions, the development of Problems of slope deformation and damage are often encountered during excavation. At present, there is still a lack of a high slope earthwork and support engineering construction method that can effectively ensure the stability of the slope after excavation.

Method used

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  • Construction method of earthwork and support engineering for high slope
  • Construction method of earthwork and support engineering for high slope
  • Construction method of earthwork and support engineering for high slope

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Embodiment Construction

[0065] The present invention will be further described below in conjunction with specific examples.

[0066] see figure 1 , a high slope earthwork and support engineering construction method, comprising the following steps:

[0067] S1: construction survey setting-out positioning;

[0068] Use the polar coordinate stakeout method of the total station to measure the land acquisition red line on site to guide the construction;

[0069] The accurately calculated excavation side slope slope top and platform line are set out on site as the control line for earthwork excavation.

[0070] S2: Clean the surface and excavate temporary drainage ditches;

[0071] Before large-scale excavation in the site, the root soil and vegetation within a depth of not less than 30cm must be removed to ensure that the backfill soil material in the site meets the design and specification requirements.

[0072] The setting of temporary drainage ditches must be uniformly planned in accordance with th...

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Abstract

The invention discloses a high slope earthwork and support engineering construction method which comprises the following steps of: carrying out construction measurement, pay-off and positioning; clearing and excavating a temporary drainage ditch; excavating a first layer of earthwork of a current-class slope; finishing a side slope of the current-class slope; drilling on the current-class slope according to a preset anchor cable installation position to form an anchor cable mounting hole; manufacturing and installing an anchor cable on the current-class slope; grouting the anchor cable mounting hole on the current-class slope; excavating a lower layer of earthwork of the current-class slope; constructing a waist rail on the current-class slope; carrying out prestressed anchor cable tensioning and locking on the current-class slope; sealing and anchoring the current-class slope; repeating the construction step of the current-class slope and completing the construction of a subsequent-class slope; and monitoring the side slope. Due to the adoption of the high slope earthwork and support engineering construction method disclosed by the invention, the high slope earthwork and support engineering construction method capable of effectively ensuring the stability of the side slope after the side slope is excavated is implemented. The high slope earthwork and support engineering construction method has the characteristics that after construction, a rock-soil body has stable structure; the process is simple and convenient; the high slope earthwork and support engineering construction method is safe to construct; the investment of large-scale mechanical equipment is reduced; and the cost is saved.

Description

technical field [0001] The invention relates to a construction method, in particular to a high slope earthwork and support engineering construction method. Background technique [0002] At present, during the construction of earthwork excavation and support projects for high and large mountain slopes, expressway slope support projects, earthwork excavation and filling of large public sites, and slope support projects, due to the large undulations of the terrain and complex geological conditions, the development of Problems of slope deformation and damage are often encountered during excavation. At present, there is still a lack of a high slope earthwork and support engineering construction method that can effectively ensure the stability of the slope after excavation. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the prior art, and provide a high slope earthwork and support engineering construction method, which reali...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/20
Inventor 郭青松王荣涛税勇焦兴荣王颖刘勇蔡庆军
Owner CHINA CONSTR EIGHT ENG DIV CORP LTD
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