Road widening construction method for high and steep slopes

A technology of high and steep slopes and construction methods, applied in roads, roads, excavation, etc., can solve the problems of insufficient road foundation width, high cost of new roads or road reconstruction, etc., to achieve good vehicle operation, safe and reliable construction process, Guarantee the effect of construction conditions

Active Publication Date: 2022-07-19
PANGANG GRP ENG TECH
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the road foundation width is insufficient due to landslides in the existing complex geological conditions, resulting in high cost of adding new roads or rebuilding roads

Method used

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  • Road widening construction method for high and steep slopes
  • Road widening construction method for high and steep slopes
  • Road widening construction method for high and steep slopes

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Embodiment Construction

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] like Figure 1 to Figure 4 As shown, the construction method for widening high and steep side slopes of the present invention includes the following steps:

[0030] a. Clean up the pumice stone on the residual road 12 and the collapsed side slope 13;

[0031] b. Drill bolt holes on the side wall of the collapsed slope 13;

[0032] c. Anchor bolt hole grouting anchorage;

[0033] d. A lock foot anchor rod cluster 9 is arranged at the lower end of the inner side slope 1;

[0034] e. Lay steel mesh 11 on the residual road 12, lay steel bars vertically on the collapsed side slope 13 and the collapsed side slope 13 on the outer side of the residual road 12, correspondingly form lattice beams 4 steel bars and pile wall 3 steel bars, and place the steel bars The net 11 is respectively connected with the anchor bolt cluster 9 of the inner side slope 1, the slope latti...

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Abstract

The invention relates to a construction method for road widening on high and steep slopes, comprising the steps of: a. cleaning pumice; b. drilling bolt holes; c. grouting and anchoring the bolt holes; d. setting anchor bolt clusters (9) e. Lay steel mesh (11) on the residual road (12), and lay steel bars vertically on the collapsed slope (13) and outside the collapsed slope (13); f. The lattice beam (4) and the pile wall (3) Reinforced concrete construction; g. Pile-board wall (3) Slag backfill in the segmented area (7) Backfilling; h. Remaining road (12) Pavement reinforced concrete pouring construction. The lattice beam (4) and the pile wall (3) are fixed on the side wall and the outer side of the collapsed slope (13) by means of anchor rods or anchor cables (6), and the restoration of the residual road (12) is realized by pouring reinforced concrete , speeding up the construction progress, overcoming the problem of insufficient road (foundation) width caused by complex geological conditions due to landslides, and the problem of high cost of new roads or reconstruction roads.

Description

technical field [0001] The invention relates to a road widening construction method for high and steep slopes, and belongs to the technical field of road construction methods. Background technique [0002] There are many groups of faults on the slope of the mining area, and the lithological thickness of the slope faults varies greatly in the mining area, ranging from 10cm to 10m. Excessive extrusion, extrusion marks are very obvious. The slope along the slope fault is the most important factor affecting its stability. At the same time, the slope in the mining area is prone to slip surface collapse, and the average width of the collapse is 2m, so that the width of the foundation of the flood discharge ditch required for construction is insufficient, resulting in partial collapse. The latter road does not meet the construction conditions of the drainage ditch. However, at this stage, the complex geological conditions lead to insufficient width of road foundation due to lands...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C3/00E02D17/20E02D5/74E01C7/14E01C11/16E01C11/18
CPCE01C3/00E02D17/20E02D5/74E01C7/14E01C7/147E01C11/16E01C11/18Y02A30/60
Inventor 谈捷王波张少军陈奚周瑜李庭慧
Owner PANGANG GRP ENG TECH
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