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Plate-type anchorage structure and construction method thereof
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An anchoring and slab technology, applied in bridge parts, erecting/assembling bridges, bridges, etc., can solve the problems of increasing construction costs and construction risks, and achieve the effects of reducing the risk of excavation and collapse, shortening the construction period, and improving the anchoring force.
Pending Publication Date: 2020-05-19
SICHUAN DEPT OF TRANSPORTATION HIGHWAY PLANNING PROSPECTING & DESIGN RES INST
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Problems solved by technology
[0003] In order to solve the above-mentioned temporary use of gravity anchors, large volumes of concrete need to be poured, which increases construction costs and construction risks.
Method used
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Embodiment 1
[0040] Such as Figure 1-6 As shown, a plate-type anchorage structure includes a pressure bearing plate 1 and an anchorage, the anchorage is arranged on the pressure bearing plate 1, and the anchorage and the pressure bearing plate 1 are integrally cast and formed, so The pressure bearing plate 1 is covered with backfill soil 12, and the backfill soil 12 is adapted to the original ground.
[0041]During construction, a foundation pit is excavated on the ground, and the excavated backfill soil 12 is placed aside for later use, and then steel bars are bound in the foundation pit, and then the pressure-bearing structure is formed by one-time pouring or multiple pouring of concrete. Plate 1 and the anchorage. The height of the pressure bearing plate 1 is smaller than the height of the foundation pit, so that the pressure bearing plate 1 is arranged below the original ground. The anchor is arranged on the bearing plate 1, and the anchor is used for connecting the buckle cable. A...
Embodiment 2
[0052] A construction method for a plate anchorage structure, comprising the following steps:
[0053] Step 1: Excavate the foundation pit and level and roll it, excavate several pile holes in the foundation pit, put the excavated backfill soil 12 aside for later use, and hoist several steel cages into the corresponding piles in sequence In the holes, concrete is poured sequentially in several of the pile holes to form several pile foundations 5;
[0054] Step 2: Bind the steel bars of the bearing plate 1 in the foundation pit, bury the steel bars of two caps, two anchorage units 2, eight stiffeners 4 and two beams 3, install the two caps, two A template for one anchor unit 2, eight stiffeners 4, and two beams 3, and several pre-embedded pipes are respectively arranged on the two anchor units 2;
[0055] Step 3: Concrete is poured in the foundation pit, and the pressure-bearing plate 1 is formed by pouring multiple times, and the next layer of concrete is poured before the in...
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Abstract
The invention relates to a plate-type anchorage structure and a construction method thereof. The plate-type anchorage structure comprises a bearing plate and an anchorage, the anchorage is arranged onthe bearing plate, the anchorage and the bearing plate are integrally formed in a pouring mode, the bearing plate is covered with backfill, and the upper surface of the backfill is flush with the ground. The bearing plate of the plate type anchorage structure is arranged under the ground, good anchoring force can be provided through the gravity of excavated backfill soil, the structure is simple,construction is convenient, land can be saved, the excavation depth can be reduced, the risk of excavation collapse of a deep foundation pit can be reduced, and the construction cost can be reduced.
Description
technical field [0001] The invention relates to the technical field of bridge construction, in particular to a plate anchorage structure and a construction method thereof. Background technique [0002] During the construction of large-scale arch bridges, the main arch needs to be hoisted by buckle cables in the early stage, and the buckle cables can be removed after the main arch is closed. Tension the buckle. According to the structure, the anchor can be divided into gravity anchor and tunnel anchor. The gravity anchor relies on its huge gravity to resist the pulling force of the main cable. The anchor body of the tunnel anchor is embedded in the bedrock, and the bedrock resists the pulling force of the main cable. . Except that the tunnel anchorage is suitable for areas with solid and complete bedrock, gravity anchorage is mostly used in other cases. Since the gravity anchor needs to pour a large volume of concrete, the anchoring force is provided by the gravity of the ...
Claims
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Application Information
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IPC IPC(8): E01D21/00E01D19/14
CPCE01D19/14E01D21/00
Inventor 牟廷敏赵艺程汪洋范碧琨邹圻李成君何娇阳梁健李胜范翊
Owner SICHUAN DEPT OF TRANSPORTATION HIGHWAY PLANNING PROSPECTING & DESIGN RES INST
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