CN115045504A

CN115045504A - Control method for concrete pouring elevation at night

Info

Publication number: CN115045504A
Application number: CN202210508085.9A
Authority: CN
Inventors: 刘涛
Original assignee: MCC5 Group Shanghai Corp Ltd
Current assignee: MCC5 Group Shanghai Corp Ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-09-13

Abstract

The invention discloses a method for controlling the elevation of concrete pouring at night, which aims to solve the problem that the elevation of concrete is difficult to control during construction at night. The control method comprises the steps of steel bar binding, template erection, measurement of a plurality of initial elevation control points, night light-reflecting sticker marking, concrete pouring construction and the like. The control method changes the traditional manual multiple measurement mode, the pouring elevation can be checked at any time at night by one-time measurement in the daytime, the consumption of concrete is effectively controlled, and the labor cost is reduced; the height and the flatness of the concrete are controlled in time at multiple points, and the stability of elevation control of the concrete pouring surface is improved; easy operation and strong popularization.

Description

Control method for concrete pouring elevation at night

Technical Field

The invention relates to the technical field of building construction, in particular to a method for controlling the concrete pouring elevation at night.

Background

In the construction process of the constructional engineering, the concrete pouring engineering quantity is large, and whether the control of the elevation of the concrete surface of the beam plate is in place directly influences the living or the use space of the building, so that the higher requirements on the concrete elevation control are provided no matter the construction quality acceptance criteria or the requirements of owners. Most of the concrete is poured for a long time, and concrete pouring construction at night is inevitably needed. The control of traditional large tracts of land concrete pouring elevation is mainly instrument + sopwith staff: erecting a measuring instrument, and measuring the elevation of the pouring top surface by using a level gauge or a gradienter in combination with a tower staff according to the measured elevation. However, the sliding staff is not provided with a base, the bearing surface is small, concrete is not formed during pouring, the sliding staff is supported on the surface of the concrete and is easy to sink into the concrete, operation of technicians or experienced operators is needed, otherwise, the sliding staff is deviated up and down or left and right, measurement errors are caused, and the accuracy is not high due to human factors. In addition, the traditional elevation method is generally used in good weather and light, the measurement precision is lower when the elevation control method is used in rainy days or at night, repeated measurement is needed for multiple times, the elevation control efficiency is reduced, and the manpower consumption is improved.

Chinese patent No. CN201510929365.7 discloses a concrete nighttime construction elevation control device and a construction method thereof. The device includes elevation control mechanism and positioning mechanism, elevation control mechanism includes push pedal, fixed plate, U template and grab handle, set up fluorescence scale mark on the grab handle, positioning mechanism includes that bottom plate and laser sweep the flat appearance. The device has simple manufacturing materials and process, and can be used for night observation. However, the device still needs to measure the elevation many times, and can not look over the casting elevation at any time and control the consumption of concrete in time. The concrete leveling system disclosed in chinese utility model patent No. CN201920728656.3 also has such a problem.

Therefore, it is an urgent technical problem to be solved to develop a timely control method for concrete pouring elevation at night.

Disclosure of Invention

Due to the defects in the prior art, the invention provides a method for controlling the pouring elevation of the concrete at night, and aims to solve the problems that the measurement precision of the concrete elevation at night is low and the pouring elevation cannot be checked at any time.

In order to achieve the purpose, the invention provides a method for controlling the concrete pouring elevation at night, which is characterized by comprising the following steps of:

s1, binding steel bars of a floor slab to be poured with concrete and erecting a template;

s2, measuring a plurality of initial elevation control points: the step ruler is placed on the template, when the reading of a light spot projected on the step ruler after the laser leveling instrument is leveled is the thickness of concrete to be poured, the light spot projected on the side wall of the floor slab by the laser leveling instrument is horizontally rotated to be an elevation control point of the concrete; measuring at different positions of the template to obtain a plurality of elevation control points;

s3, marking the night reflective sticker on the elevation control point: pasting a night light reflecting sticker by taking the elevation control point as a center; the distance between the upper edge and the lower edge of the night reflective sticker is the deviation allowed by the concrete pouring height;

s4, concrete pouring construction: and pouring concrete, checking the distance between a pouring surface and the night reflective sticker at any time, controlling the height and the flatness of the pouring surface in time, and finally finishing pouring construction.

Preferably, the laser swinger is a universal level or level.

Preferably, the measured elevation control points are not less than 3. The feature can facilitate the operation of multiple persons, more conveniently check the elevation control point and better control the height and the flatness of the pouring surface.

Preferably, the allowable deviation of the concrete pouring height is ± 5-10 mm.

Preferably, the height of the pouring surface before polishing and collecting is slightly higher than the upper edge of the night reflective sticker. This feature allows for more precise control of the casting face thickness.

Preferably, the upper surface position of the cast surface after polishing and light collection falls on the night reflective sticker. This feature enables the casting surface to meet the requirements of construction quality.

The concrete elevation control method changes the traditional manual multiple measurement mode, the pouring elevation can be checked at any time at night by once measurement in the daytime, the consumption of concrete is effectively controlled, and the labor cost is reduced; the height and the flatness of the concrete are controlled in time at multiple points, and the stability of elevation control of the concrete pouring surface is improved; the method solves the difficulty of controlling the elevation of the concrete in construction at night, and has wide application range.

Compared with the prior art, the invention has the following advantages or beneficial effects:

(1) the method can be used for measuring at one time, the pouring elevation can be checked at any time at night, and the problem that the elevation of the construction concrete at night is difficult to control is solved;

(2) the height and the flatness of the concrete are controlled in time at multiple points, and the stability of elevation control of the concrete pouring surface is improved;

(3) the elevation efficiency is improved, and the labor cost is reduced;

(4) the control method is easy to operate and strong in popularization.

The invention discloses a method for controlling the elevation of concrete pouring at night, which aims to solve the problem that the elevation of concrete is difficult to control during construction at night. The control method comprises the steps of binding steel bars, erecting a template, measuring a plurality of initial elevation control points, marking a night light-reflecting sticker, constructing concrete pouring and the like. The control method changes the traditional manual multiple measurement mode, can check the pouring elevation at any time at night by measuring once in the daytime, effectively controls the consumption of concrete, and reduces the labor cost; the height and the flatness of the concrete are controlled in time at multiple points, and the stability of elevation control of the concrete pouring surface is improved; easy operation and strong popularization.

Drawings

The invention and its features, aspects and advantages will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention.

FIG. 1 is a flow chart of the steps of the control method of the present invention.

Detailed Description

The structure of the present invention will be further described with reference to the drawings and the specific embodiments, but the present invention is not limited thereto.

Example 1

As shown in fig. 1, a method for controlling the concrete pouring elevation at night is implemented, which comprises the following steps:

s1, binding steel bars of a floor slab to be cast with concrete and erecting a template;

s2, measuring a plurality of initial elevation control points: the method comprises the following steps that a sliding staff is placed on a template, when the reading of a light spot projected on the sliding staff after the leveling of a laser leveling instrument is the thickness of concrete to be poured, the light spot projected on the side wall of a floor slab by the laser leveling instrument is horizontally rotated to be an elevation control point of the concrete; measuring at different positions of the template to obtain 3 elevation control points; in this embodiment, the laser swinger is a general level;

s3, marking the night reflective sticker on the elevation control point: pasting a night light reflecting sticker by taking the elevation control point as a center; the distance between the upper edge and the lower edge of the night reflective sticker is the deviation allowed by the concrete pouring height; in this embodiment, the allowable deviation of the concrete pouring height is ± 10 mm;

s4, concrete pouring construction: and carrying out concrete pouring, checking the distance between a pouring surface and the night reflective sticker at any time, controlling the height and the flatness of the pouring surface in time, and finally finishing pouring construction.

In this embodiment, the height of pouring the face before polishing and receiving light is higher than in the top edge 3mm of reflection of light sticker night. The upper surface position of the pouring surface after polishing and light collecting is arranged on the night light reflecting sticker, so that the pouring surface meets the requirement of construction quality.

Example 2

A method for controlling the concrete pouring elevation at night is realized, and the method comprises the steps similar to the embodiment 1. Different from the embodiment 1, 5 elevation control points are measured to carry out elevation control; the allowable deviation of the concrete pouring height is +/-5 mm; the height of the pouring surface before polishing and finishing is higher than the upper edge of the night reflective sticker by within 4 mm.

Example 3

A method for controlling the concrete pouring elevation at night is realized, and the method comprises the steps similar to the embodiment 1. Unlike example 1, the laser swinger is a universal level; measuring 4 elevation control points to control the elevation; the allowable deviation of the concrete pouring height is +/-8 mm.

In conclusion, the invention provides a method for controlling the elevation of concrete pouring at night, which aims to solve the problem that the elevation of concrete is difficult to control during construction at night. The control method comprises the steps of steel bar binding, template erection, measurement of a plurality of initial elevation control points, night light-reflecting sticker marking, concrete pouring construction and the like. The control method changes the traditional manual multiple measurement mode, the pouring elevation can be checked at any time at night by one-time measurement in the daytime, the consumption of concrete is effectively controlled, and the labor cost is reduced; the height and the flatness of the concrete are controlled in time at multiple points, and the stability of elevation control of the concrete pouring surface is improved; easy operation and strong popularization.

Those skilled in the art will appreciate that variations may be implemented by those skilled in the art in combination with the prior art and the above-described embodiments, and will not be described herein in detail. Such variations do not affect the essence of the present invention, and are not described herein.

The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.

Claims

1. A method for controlling the concrete pouring elevation at night is characterized by comprising the following steps:

s2, measuring a plurality of initial elevation control points: the method comprises the following steps that a sliding staff is placed on a template, when the reading of a light spot projected on the sliding staff after the leveling of a laser leveling instrument is the thickness of concrete to be poured, the light spot projected on the side wall of a floor slab by the laser leveling instrument is horizontally rotated to be an elevation control point of the concrete; measuring at different positions of the template to obtain a plurality of elevation control points;

2. The method of claim 1, wherein the laser sweep level is a universal level or a water level.

3. The method for controlling the elevation of concrete poured at night according to claim 1 or 2, wherein the measured elevation control points are not less than 3.

4. The method for controlling the concrete pouring elevation at night according to claim 1, wherein the allowable deviation of the concrete pouring elevation is ± 5-10 mm.

5. The method for controlling the concrete pouring elevation at night according to claim 1, wherein the height of the pouring surface before polishing and smoothing is slightly higher than the upper edge of the night reflecting sticker.

6. The method for controlling the concrete pouring elevation at night according to claim 5, wherein the position of the upper surface of the pouring surface after polishing and light collecting falls on the night reflecting sticker.