Construction method of large round spherical arch bar concrete and surface bituminous concrete foundation
A technology for asphalt concrete and foundation construction, which is applied in the direction of infrastructure engineering, construction, etc., can solve the problems of difficult control of slope, radian, sphericity and surface smoothness, and achieve the effect of ensuring the slope and flatness of the arc
Active Publication Date: 2019-01-04
PANGANG GRP ENG TECH
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Problems solved by technology
[0003] In order to overcome the shortcomings of existing large-scale circular spherical arch slab concrete and surface asphalt concrete foundation construction, such as slope, radian, sphericity and surface smoothness are difficult to control, etc., the technical problem to be solved by the present invention is: to lift a kind of arch Construction method of large circular spherical arch slab concrete and surface asphalt concrete foundation with better parameter index control
Method used
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Experimental program
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Effect test
Embodiment Construction
[0019] The present invention is further described below.
[0020] The construction method of large circular spherical arch slab concrete and surface asphalt concrete foundation comprises the following steps:
[0021] a. Surveying and setting out, use total station, laser theodolite and level to measure and locate the construction site, and carry out axis projection, setting out and elevation projection;
[0022] b. Cushion laying, lay the cushion layer by layer on the formed foundation and vibrate and pat compact it;
[0023] c. Reinforcement production and installation, according to the shape of the spherical arch plate, the reinforcement is fabricated in sections on the cushion for splicing, and then braces and cushions are welded at regular intervals around the bottom of the intersection of the reinforcement to support the reinforcement;
[0024] d. The elevation control of the arch slab, a plurality of vertical bars are uniformly welded on the cushion, and the point is ma...
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The invention discloses a construction method of a large round spherical arch bar concrete and surface bituminous concrete foundation in the field of building engineering. The method comprises the steps of surveying and setting out, cushion layer pavement, steel bar making and mounting, arc bar elevation control, concrete pouring, bituminous concrete pavement and the like. According to the key, multiple vertical bars are evenly welded to a cushion layer, concrete pouring elevation control points of a round spherical arch bar at the point are marked on the vertical bars with paint, spherical arch bar concrete caking is carried out with the top ends of the vertical bars as the foundation, the height of a cake is the design elevation of the round spherical arch bar at the point, then radial bar pulling is carried out with the cake as the foundation, and finally a road roller is utilized for rolling and paving bituminous concrete between the adjacent bars. By means of the method, the elevation of each position of the spherical arc bar can be precisely controlled in the concrete and bituminous concrete pouring process, and the arc gradient and flatness of final bituminous concrete pavement are guaranteed.
Description
technical field [0001] The invention relates to the field of construction engineering, in particular to a construction method for a large circular spherical arch concrete and surface asphalt concrete foundation. Background technique [0002] Large circular spherical arch concrete and surface asphalt concrete foundation have the advantages of good stability, high reliability, strong adaptability and large load-bearing capacity, and are widely used in gas tanks and liquefied gas tanks in mineral processing, metallurgy, construction and chemical industry body etc. basis. There are not many domestic construction methods for large circular spherical arch slab concrete and surface asphalt concrete foundations. During the construction process, it is difficult to control the sphericity, and it is difficult to ensure the smoothness of the foundation surface, and a series of quality problems such as unevenness and deviation are prone to occur. How to effectively control the slope, ra...
Claims
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IPC IPC(8): E02D27/38
CPCE02D27/38
Inventor 黎爱军刘中平张学通冯庭文
Owner PANGANG GRP ENG TECH