CN112963009A - Concrete pouring and plugging method for holes of waffle slab - Google Patents

Abstract

The invention relates to a method for pouring and plugging concrete in holes of a waffle slab; the method comprises the following steps: according to design change, cutting off the inner wall of the wafer barrel in the hole of the wafer plate and chiseling the concrete on the side wall; planting ribs obliquely along the side wall of the hole of the waffle slab; pasting double-sided adhesive tape around the hole wall at the bottom of the waffle barrel cavity; four steel wires are fixedly led out by opening holes on the periphery of a barrel cover of the waffle barrel; four steel wires led out from the barrel cover of the waffle barrel are tied and fixed with four implanted steel bars to ensure that the barrel cover is tightly covered with the originally poured concrete on the periphery of the waffle barrel; pouring concrete and maintaining to enable the concrete to reach the design strength; and carrying out surface layer epoxy treatment on the surface of the pouring position. According to the invention, the steel bar is implanted into the side wall of the hole of the waffle slab to form the steel bar framework, the steel wire waffle slab barrel cover is hung on the steel bar framework to serve as the bottom die, so that the barrel cover is tightly connected with the waffle barrel, glue is applied to the edges of the barrel cover and the barrel wall to prevent slurry leakage, and then concrete is poured to seal the hole of the waffle slab, so that the waffle slab has the characteristics of convenience in operation and good sealing effect.

Description

Concrete pouring and plugging method for holes of waffle slab

Technical Field

The invention relates to the field of construction of electronic plants, in particular to a method for pouring and plugging concrete in holes of waffle slabs.

Background

At present, the core area of a large-scale electronic factory building is gradually developed into a waffle slab structure, the thickness of the waffle slab in the core area is large, and in the construction process, partial holes of the waffle slab are often blocked due to design change. At present, no good plugging method can be used for effectively plugging the holes of the wafer plate, and the good plugging rear surface is provided.

Disclosure of Invention

The invention aims to overcome the defects and provides a method for pouring and plugging concrete in holes of a waffle slab, which has the characteristics of high strength and good surface effect.

In order to achieve the above object, the present invention is realized by:

a method for pouring and plugging concrete in holes of waffle slab comprises the following steps:

step 1, cutting off the inner wall of a wafer barrel in a wafer plate hole and chiseling concrete on the side wall according to the wafer plate hole needing to be blocked according to a design change mark;

step 2, obliquely planting bars along the side wall of the waffle slab with an angle of 60 degrees with the vertical direction, wherein the bar planting depth is more than or equal to 10 d;

step 3, binding and firmly fixing the obliquely implanted steel bars by using steel wires;

step 4, fixedly leading out four steel wires by opening holes on the periphery of a barrel cover of the waffle barrel;

step 5, sticking double-sided adhesive tapes around the wall of the hole of the concrete originally poured on the periphery of the waffle drum;

step 6, four steel wires led out from the barrel cover of the waffle barrel and four implanted steel bars are tied and fixed to ensure that the barrel cover and the originally poured concrete on the periphery of the waffle barrel are covered tightly;

step 7, pouring concrete and maintaining to enable the concrete to reach the design strength;

and 8, performing surface layer epoxy treatment on the surface of the pouring position.

The method for pouring and plugging the concrete in the holes of the waffle slab comprises the following step 2

Step 2.1, paying off and positioning on site according to requirements, wherein a detector is used for detecting and avoiding the position of the existing steel bar, marking the position of a drilling hole and drilling the hole;

step 2.2, cleaning up dust around the holes, and cleaning the holes by using an air pump and a steel wire brush; after the cleaning, soaking the cotton threads in acetone, and cleaning the inner wall of the hole to finally clean and dry the hole;

step 2.3, after cleaning the holes, tightly plugging the cleaned holes by using clean cotton threads to prevent dust and foreign matters from falling into the holes;

step 2.4, inserting the processed steel bars into the holes, filling bar planting glue for anchoring into a glue injection cylinder, and installing a glue injection nozzle; injecting the bar planting glue into the hole through the glue injection pipe until the air outlet pipe at the other end overflows the glue;

and 2.5, after the cleaning of the bar planting holes is finished, carrying out hidden acceptance check and making an acceptance check record.

According to the invention, the steel bar is implanted into the side wall of the hole of the waffle slab to form a steel bar framework, the steel wire waffle slab barrel cover is hung on the steel bar framework to serve as a bottom die, so that the barrel cover is tightly connected with the waffle barrel, glue is applied to the edges of the barrel cover and the barrel wall to prevent slurry leakage, and then concrete is poured to seal the hole of the waffle slab. Therefore, the invention has the characteristics of convenient operation and good sealing effect.

Drawings

Fig. 1 is a construction schematic diagram of the plugging method.

Fig. 2 is a schematic view of a bar planting process in the plugging method.

Detailed Description

The invention is further illustrated by the following specific examples.

As shown in fig. 1, a method for pouring and blocking concrete in a hole of a waffle slab comprises the following steps:

step 1, cutting off the inner wall of a wafer barrel in a wafer plate hole 1 and chiseling side wall concrete according to the wafer plate hole 1 which needs to be plugged according to a design change mark;

step 2, obliquely implanting a steel bar 2 along the side wall of the waffle slab at an angle of 60 degrees with the vertical direction, wherein the depth of the implanted steel bar 2 is more than or equal to 10 d;

step 3, binding and firmly fixing the obliquely implanted steel bars by using steel wires;

step 4, fixedly leading out four steel wires 4 by opening holes on the periphery of a barrel cover 3 of the waffle barrel;

step 5, sticking double-sided adhesive tapes around the wall of the hole of the concrete originally poured on the periphery of the waffle drum;

step 6, four steel wires 4 led out from a barrel cover 3 of the waffle barrel are tied and fixed with four implanted steel bars 2 to ensure that the barrel cover 3 is tightly covered with the originally poured concrete on the periphery of the waffle barrel;

step 7, pouring concrete and maintaining to enable the concrete to reach the design strength;

and 8, performing surface layer epoxy treatment on the surface of the pouring position.

As shown in fig. 2, in step 2, the bar-planting process includes

Step 2.1, paying off and positioning on site according to requirements, wherein a detector is used for detecting and avoiding the position of the existing steel bar, marking the position of a drilling hole and drilling the hole;

step 2.2, cleaning up dust around the holes, and cleaning the holes by using an air pump and a steel wire brush; after the cleaning, soaking the cotton threads in acetone, and cleaning the inner wall of the hole to finally clean and dry the hole;

step 2.3, after cleaning the holes, tightly plugging the cleaned holes by using clean cotton threads to prevent dust and foreign matters from falling into the holes;

step 2.4, inserting the processed steel bars into the holes, filling bar planting glue for anchoring into a glue injection cylinder, and installing a glue injection nozzle; injecting the bar planting glue into the hole through the glue injection pipe until the air outlet pipe at the other end overflows the glue;

and 2.5, after the cleaning of the bar planting holes is finished, carrying out hidden acceptance check and making an acceptance check record.

According to the invention, the steel bar is implanted into the side wall of the hole of the waffle slab to form a steel bar framework, the steel wire waffle slab barrel cover is hung on the steel bar framework to serve as a bottom die, so that the barrel cover is tightly connected with the waffle barrel, glue is applied to the edges of the barrel cover and the barrel wall to prevent slurry leakage, and then concrete is poured to seal the hole of the waffle slab. Therefore, the invention has the characteristics of convenient operation and good sealing effect.

Claims (2)

1. A method for pouring and plugging concrete in holes of waffle slab is characterized by comprising the following steps: the method comprises the following steps:

step 1, cutting off the inner wall of a wafer barrel in a wafer plate hole and chiseling concrete on the side wall according to the wafer plate hole needing to be blocked according to a design change mark;

step 2, obliquely planting bars along the side wall of the waffle slab with an angle of 60 degrees with the vertical direction, wherein the bar planting depth is more than or equal to 10 d;

step 3, binding and firmly fixing the obliquely implanted steel bars by using steel wires;

step 4, fixedly leading out four steel wires by opening holes on the periphery of a barrel cover of the waffle barrel;

step 5, sticking double-sided adhesive tapes around the wall of the hole of the concrete originally poured on the periphery of the waffle drum;

step 6, four steel wires led out from the barrel cover of the waffle barrel and four implanted steel bars are tied and fixed to ensure that the barrel cover and the originally poured concrete on the periphery of the waffle barrel are covered tightly;

step 7, pouring concrete and maintaining to enable the concrete to reach the design strength;

and 8, performing surface layer epoxy treatment on the surface of the pouring position.

2. The waffle slab hole concrete pouring and plugging method according to claim 1, wherein: in step 2, the process of bar planting comprises

Step 2.1, paying off and positioning on site according to requirements, wherein a detector is used for detecting and avoiding the position of the existing steel bar, marking the position of a drilling hole and drilling the hole;

step 2.2, cleaning up dust around the holes, and cleaning the holes by using an air pump and a steel wire brush; after the cleaning, soaking the cotton threads in acetone, and cleaning the inner wall of the hole to finally clean and dry the hole;

step 2.3, after cleaning the holes, tightly plugging the cleaned holes by using clean cotton threads to prevent dust and foreign matters from falling into the holes;

step 2.4, inserting the processed steel bars into the holes, filling bar planting glue for anchoring into a glue injection cylinder, and installing a glue injection nozzle; injecting the bar planting glue into the hole through the glue injection pipe until the air outlet pipe at the other end overflows the glue;

and 2.5, after the cleaning of the bar planting holes is finished, carrying out hidden acceptance check and making an acceptance check record.

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