Combined supporting structure for concrete segment anchor rod deviation
A concrete pipe and combined support technology, which is applied in the installation of bolts, earthwork drilling, wellbore lining, etc., can solve problems affecting construction, bolt offset, dislocation, etc., and achieve high bearing capacity, convenient construction, and fast construction fast effect
Inactive Publication Date: 2018-10-26
SHENYANG JIANZHU UNIVERSITY
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Problems solved by technology
[0008] From the current engineering practice, my country's tunnel technology is gradually developing, and the difficulty of tunnel construction is gradually increasing. During the construction of anchor rods, due to the influence of construction personnel, construction machinery, and site engineering conditions, most anchor bolts After the rod is installed, there will be unfavorable factors such as offset and dislocation, especially when it is combined with the shield segment, these unfavorable factors will affect the entire construction
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[0025] Example: such as Figure 1 ~ Figure 4 As shown, a combined support structure for the deviation of the concrete segment anchor, including two parts of the interconnected concrete segment 1 and the grouting anchor;
[0026] The concrete segment 1 is composed of a segment longitudinal connection hole 1-1, a segment transverse connection serration 1-2, an anchor hole 1-3, and a segment body 1-4. The main body of the concrete segment 1 is the segment body 1-4, there are two segment longitudinal connection holes 1-1 in the upper and lower directions of the segment main body 1-4, and segment transverse connection saw teeth 1-2 are arranged on both sides of the segment main body 1-4. The horizontal connection serrations 1-2 of the side segments are in an occlusal state, and the number of occlusal teeth at the left and right ends differs by one; the center of the segment main body 1-4 is provided with an anchor hole 1-3, and the anchor hole 1-3 is a hollow;
[0027] The groutin...
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The invention relates to a combined supporting structure for concrete segment anchor rod deviation and belongs to the field of tunnel supporting. The combined supporting structure comprises concrete segments and grouting anchor rods and is characterized in that each concrete segment comprises segment longitudinal connecting holes, segment transverse connecting saw teeth, an anchor rod hole and a segment body; each grouting anchor rod comprises an anchor rod head, an anchor rod grouting anchoring section, a grouting anchor rod, a rubber pad, a spherical pad and an anchor tool; each concrete segment is connected with the corresponding grouting anchor rod through the corresponding rubber pad, the corresponding spherical pad and the corresponding anchor tool, and the rubber pad is made of a high-elasticity, corrosion-resistant and aging-resistant rubber material. The combined supporting structure is high in bearing capacity, convenient in construction, fast in construction, good in economic effect, good in supporting effect, capable of shortening construction period and capable of lowering construction cost, and construction can be directly performed when deviated anchor rods exist inthe construction process.
Description
technical field [0001] The invention belongs to the field of tunnel support, and in particular relates to a combined support structure for the deflection of anchor rods of concrete segments. Background technique [0002] With the intensification of urbanization in our country, the development of urban rail transit is increasing day by day. As of 2015, the total mileage of rail transit in my country has reached 3286 kilometers, and 112 lines in 25 cities have been put into operation. For the traffic evacuation and fast travel of the peak flow of people, the underground rail transit has more advantages than the road traffic, and the shield method construction is the main method in the construction of the underground rail transit. In addition, with the upgrading of China's equipment manufacturing industry and the improvement of construction technology, shield tunnels tend to develop with large buried depths. Represented by cross-river and sea-crossing tunnels and deep coal min...
Claims
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Login to View More IPC IPC(8): E21D11/08E21D20/02E21D21/00
CPCE21D11/08E21D11/083E21D20/02E21D21/0026
Inventor 张延年马恕君
Owner SHENYANG JIANZHU UNIVERSITY