A four-pile fan jacket foundation sealing ring installation process

Abstract

The invention relates to a process for installing a four-pile fan jacket foundation sealing ring, and the specific steps include: S1. Pre-drilling a plurality of evenly distributed first bolt holes on the piercing legs of the jacket foundation, and placing them on the piercing legs The position of the first bolt hole on the outer surface is ground and smooth; S2, a prefabricated sealing ring and a plurality of support platforms, the sealing ring includes a ring part and an inclined opening part placed on the upper end of the ring part; S3, the sealing ring is positioned on the insert leg Horizontal rotation mechanism; S4, hoist the sealing ring to a plurality of support platforms, so that the sealing ring is sleeved on the inserting leg; S5, insert a plurality of equal-circumferential pads longitudinally between the inner wall of the annular portion of the sealing ring and the outer wall of the inserting leg piece; S7, remove the horizontal rotation mechanism of the sealing ring by cutting. The invention has the following advantages: ensuring the alignment accuracy of the bolt holes of the insert legs and the sealing ring, and ensuring the connection firmness of the sealing ring and the insert legs.

Description

Technical field: [0001] The invention belongs to the field of jackets, and in particular relates to a process for installing a foundation sealing ring of a four-pile fan jacket. Background technique: [0002] The fan jacket filling technology is the key technology in the construction of the jacket foundation. The grouting material is poured from the grouting pipe into the airtight cavity between the jacket legs and the jacket foundation. After the grouting material solidifies, an effective connection is formed. A sealing ring is installed on the outside of the jacket leg, so that the sealing ring can block the grouting material to a certain extent, so as to avoid the continuous downward flow of the grouting material and cause more waste of slurry, and at the same time, it can ensure the stable connection between the leg and the jacket foundation. , to achieve the effect of good transmission force. [0003] Since the sealing ring includes a ring portion fixedly connected wit...

AI Technical Summary

Problems solved by technology

[0003] Since the sealing ring includes an annular part fixedly connected to the inserting leg by bolts and an inclined opening placed above the annular part, in order to ensure that the sealing ring is quickly hoisted to the installation position outside the inserting leg, the annular part of the sealing ring and the inserting leg There is a gap between the sealing ring and the bolt holes on the inserting legs. After adjustment and alignment, the bolts are driven in to fix the sealing ring and the inserting legs. At present, the sealing ring has the following defects in this installation process: 1. Due to the sealing If there is a gap in the horizontal direction between the sealing ring and the inserting leg, it is difficult to keep the bolt holes on the sealing ring and the inserting leg corresponding during vertical hoisting and ring horizontal adjustment. The surface of the bolt is worn or deformed and fractured; 2. In order to ensure the isolation effect of the sealing ring, the rubber layer is used to isolate the slurry between the sealing ring and the outer wall of the insert leg, but after the bolt is driven into the rubber layer, the rubber layer will be stressed. Stress relaxation occurs, which reduces the pre-tightening force of the tightening bolts, thus making the connection between the sealing ring and the inserting legs loose, requiring a wrench to pre-tighten the tightening bolts many times

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