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Flexible reinforcement combination protection structure for controlling humidification and damage for soft rock strong weathering zone

A combined protective structure and strong weathering technology, applied in infrastructure engineering, excavation, construction, etc., can solve the problems of slow construction speed, complex process and high cost, and achieve the effect of fast construction speed, simple technology and reduced engineering volume.

Inactive Publication Date: 2012-06-27
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

Sometimes, this type of collapse and damage is also caused by the wetting of the soft rock and strong weathered rock belt after the construction is infiltrated by rainfall.
At present, in order to prevent the damage of this kind of excavation slope, the anchor frame beam is often used to reinforce the slope, but the reinforcement of the anchor frame beam is not only complicated in process, slow in construction speed, and high in cost, but sometimes it still occurs due to the failure of the anchor force. destroy

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  • Flexible reinforcement combination protection structure for controlling humidification and damage for soft rock strong weathering zone
  • Flexible reinforcement combination protection structure for controlling humidification and damage for soft rock strong weathering zone

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0011] see figure 1 , according to the wetting failure of the strongly weathered rock zone of the soft rock weathered slope, it is mainly due to the decrease of the shear strength of the soft rock in the strongly weathered rock zone 2 under the residual soil layer 1 of the slope after wetting, which leads to the excavation The law of shear sliding failure of the slope along the strongly weathered rock belt is protected by a combined scheme in the present invention. The characteristic of the combined scheme is that the residual soil layer 1 on the upper part of the slope can be stabilized by itself, so grass planting is used for protection, that is, in the opening Lay a first single-layer geotextile 7 on the excavation surface, and then spread loam 6 and plant grass on the first single-layer geotextile 7; the soft rock of the strongly weathered ...

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Abstract

The invention discloses a flexible reinforcement combination protection structure for controlling humidification and damage for a soft rock strong weathering zone. In the invention, in a residual soil layer (1) arranged at the upper part of a side slope, an excavated surface is laid with a first layer of geotextile (7) and spread plant loam (6), and is planted with grass; a soft rock of a strong weathering rock zone (2) arranged at the middle part of the side slope is reinforced by a flexible reinforcement retaining structure; and a weak weathering soft rock (3) arranged at the lower part of the side slope is protected by three-dimensional planting grass (5). The flexible reinforcement retaining combination protection structure is capable of stabilizing the side slope and greatly reducing the work amount, is simple and convenient in technology, rapid in construction speed, economical and environment-friendly, and can be used for resisting humidification and damage for the soft rock side slope strong weathering zone.

Description

technical field [0001] The invention relates to a retaining and protective structure for road cutting slopes, in particular to a flexible reinforced composite protective structure for preventing and controlling wet damage in soft rock strong weathering zone. Background technique [0002] Red-bed soft rocks are often prone to form a residual soil and strongly weathered rock zone with a thickness of 6m-10m in the suitable weathering position. When the soft rock strong-weathered rock zone contains local water retention, the red-bed soft rock in the strong Wet, once excavated, the strong weathered rock zone is often used as the shear outlet, causing shallow collapse and damage. Sometimes, this type of collapse and damage is also caused by the wetting of the soft rock and strong weathered rock belt after the construction is infiltrated by rainfall. At present, in order to prevent the damage of this type of excavation slope, the anchor frame beam is often used to reinforce the sl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20
Inventor 刘龙武张锐
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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