Permeable-rib type double-arch tunnel

A technology of multi-arch tunnels and transparent ribs, applied in tunnels, mining equipment, earthwork drilling and mining, etc., can solve the problems of high environmental and geological conditions, low traffic capacity, small span, etc., achieve good ventilation, improve traffic capacity, The effect of reducing the damage surface

Inactive Publication Date: 2016-07-27
ANHUI TRANSPORTATION HLDG GRP CO LTD +2
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Problems solved by technology

[0008] Aiming at the defects of the prior art, the object of the present invention is to provide a transparent ribbed double-arch tunnel, which aims to solve the technical problems of the transparent ribbed arched beam tunnel with high requirements on environmental geological conditions, small span and low traffic capacity

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  • Permeable-rib type double-arch tunnel

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] Relying on the Nanshan Tunnel design line and the slope of the mountain slope, due to the steep slope, the cut slope is close to the top of the mountain. If the mountain is excavated with a shallow buried tunnel next to the mountain, the natural balance of the slope will be destroyed, resulting in a high and steep slope with the foot of the slope being cut. The slope has its own stability problems. On the other hand, the rock mass relaxation pressure caused by hillside excavation directly acts on the tunnel structure, and has a significant bias effect, which is very unfavorable to the stabil...

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Abstract

The invention discloses a permeable-rib type double-arch tunnel which is of an embedded type asymmetrical double-arch structure. The permeable-rib type double-arch tunnel comprises an arch crown longitudinal beam, stone-falling preventing blocks, rib type arched beams, an anti-collision wall, primary lining layers, secondary lining layers, an expanded foundation, inverted arches, a middle guide cave and a middle partition wall. The secondary lining layer of an outer cave of the permeable-rib type double-arch tunnel, the arch crown longitudinal beam, the rib type arched beams and the anti-collision wall are uniformly poured into an overall structure and are connected with the inverted arches, the arch foot expanded foundation and the middle partition wall to form an annular load bearing system, so that bias stress of tunnel surrounding rock is balanced. The transverse pipe roof reinforcing range and the tunnel system anchor rod reinforcing range are connected, and a left cave and a right cave are dug step by step after left and right cave arch crown surrounding rock is strongly supported; the left cave and the right cave are connected by digging the middle guide cave and building the integral middle partition wall, meanwhile bias loads caused by mountain digging are borne, and the near-mountain double-arch tunnel structure with good ventilation and lighting effects, better stability and higher traffic capacity is formed.

Description

technical field [0001] The invention belongs to the field of tunnel engineering, and more specifically relates to a transparent ribbed multi-arch tunnel. Background technique [0002] China's mountains are vertical and horizontal, the terrain is steep and dangerous, and the geological conditions are complex. With the implementation of my country's western development strategy, the construction of high-grade highways in mountainous areas is being accelerated, and has become an important part of my country's infrastructure construction. Among them, mountain roads built along river valleys and valleys occupy a considerable proportion. [0003] The route of the road along the mountain is parallel to or obliquely intersected with the mountain slope. In the past, deep cutting schemes were often used. Due to the limitation of steep terrain conditions in mountainous areas, this solution often requires large-scale excavation of the mountain, which not only causes serious damage to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/14
CPCE21D9/14
Inventor 余飞陈修和陈善雄房涛王飞尤吉
Owner ANHUI TRANSPORTATION HLDG GRP CO LTD
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