阅读说明：本技术 大型塔设备倾斜度校正方法 (Large tower equipment inclination correction method ) 是由 狄朝晖 吴家海 于 2019-10-15 设计创作，主要内容包括：本发明公开了一种大型塔设备倾斜度校正方法,包括以下步骤：1)制作顶升支座工装；2)确定顶升支座工装的安装位置和数量；3)放置钢板和千斤顶；4)加垫垫铁组；5)分次松开地脚螺栓上的螺母；6)顶升千斤顶并调整；7)检查和检验；8)完成校正。本发明校正方法可避免使用大型吊机,大大降低施工成本。顶升支座工装结构简单、制作方便,安全可靠。在施工过程中,经简单的步骤说明后即可操作,操作简单便捷。杜绝了高空作业引发的安全事故,提高功效的同时,工作面小,对周边作业影响极小。本发明校正已产生倾斜且倾斜度超标的塔体设备,本发明校正方法稳妥安全可靠,可使设备的垂直度符合标准规范要求,保证装置设备的正常运行。(The invention discloses a large tower equipment inclination correction method, which comprises the following steps: 1) manufacturing a jacking support tool; 2) determining the installation position and the number of jacking support tools; 3) placing a steel plate and a jack; 4) adding a cushion iron group; 5) loosening nuts on the foundation bolts in a grading manner; 6) lifting and adjusting a jack; 7) checking and inspecting; 8) the correction is completed. The correction method can avoid using a large crane, and greatly reduces the construction cost. The jacking support tool is simple in structure, convenient to manufacture, safe and reliable. In the construction process, the operation can be carried out after the simple steps are explained, and the operation is simple and convenient. The safety accidents caused by high-altitude operation are avoided, the efficiency is improved, the working surface is small, and the influence on the peripheral operation is extremely small. The method for correcting the tower body equipment which is inclined and has over-standard inclination is safe, safe and reliable, and can ensure that the perpendicularity of the equipment meets the standard specification requirement and the normal operation of the equipment is ensured.)

1. The large tower equipment inclination correction method is characterized by comprising the following steps of:

1) manufacturing a jacking support tool: manufacturing a plurality of sets of jacking support tools according to the deflection condition of the tower body;

2) determining the installation position and the number of the jacking support tools: symmetrically welding a certain number of jacking support tools in the range of 180 degrees at the deflected low-position side of the skirt of the tower body;

3) placing a steel plate and a jack: placing steel plates below the jacking support tools, wherein the number of the steel plates is consistent with that of the jacking support tools, placing jacks on the steel plates, adjusting the jacks to be in contact with the jacking support tools, and enabling one set of jacking support tools to correspond to one jack;

4) adding a cushion iron set: a group of sizing blocks are additionally arranged on the higher side of the tower body corresponding to the side of each foundation bolt, so that the contact area is increased to protect the foundation;

5) loosening nuts on the foundation bolts in a grading manner: loosening all nuts on the foundation bolts, loosening 2-3 screw pitches each time, and keeping a gap between each nut and the corresponding pressure plate to be 3-5 mm;

removing all the constraints of the tower body and the periphery;

6) lifting and adjusting a jack: after the restraint of the tower body and the periphery is completely released, all jacks are started to jack simultaneously, and the height of each jack to be jacked is obtained according to calculation until the original sizing block can be pulled out;

in addition, new sizing blocks are added in groups to adjust the tower body, and two theodolites are used for monitoring the verticality of the tower body in two different directions in real time;

repeating the steps 5) and 6) until the tower body is righted and the verticality reaches the standard specification requirement;

7) and (3) checking and checking: when the verticality meets the standard requirement, all the sizing blocks are tamped, and the states of all the sizing blocks are checked; loosening the jack, and fastening the foundation bolt when the tower body falls on the sizing block and the tower verticality data is unchanged;

8) and (4) finishing correction: and after the foundation bolts are fastened, the jack is taken out, the final data of the tower body are measured, and the correction is completed after the inspection is qualified.

2. The inclination correction method for large tower equipment according to claim 1, wherein the thickness of the steel plate in step 3) is 20-30 mm.

3. The inclination correction method for large tower equipment according to claim 1, wherein the gap between the nut and the pressure plate is kept 3-5 mm during the lifting and adjusting process of step 6).

4. The method for correcting the inclination of a large tower installation according to claim 1, wherein the jack is kept monitoring during the jacking process in step 6).

5. The inclination correction method for large tower equipment according to claim 1, wherein the jacks are ultra-thin jacks, and the number of the jacking support tools in the step 2) is 8-10.

6. The large tower equipment inclination correction method according to claim 1, wherein the jacking support tool is made of common carbon steel, the jacking support tool is welded on a rib plate edge of a tower body skirt, and all welding seams must meet stress requirements.

Technical Field

The invention relates to the field of construction engineering, in particular to a large tower equipment gradient correction method.

Background

With the rapid development of national economy and the continuous expansion of construction engineering scale, various industries in China are in the spotlight, particularly the construction of modern large petroleum, chemical engineering, metallurgy, electric power and bridges and high-rise buildings is increased year by year, large ultrahigh and overweight equipment is more and more, the weight is over 1000t, and high towers with the height of over 80m are more and more. However, the situation of deep foundation in a factory area is complex, or peripheral excavation construction causes settlement of equipment foundation, and the installed equipment can be inclined at any time in a construction stage or a production stage, so that normal operation of the equipment cannot be guaranteed.

Disclosure of Invention

The invention aims to solve the technical problem that the inclination of a tower body exceeds the standard due to uneven settlement of a foundation and the like of large tower equipment in the prior art, and provides a safe, convenient and accurate inclination correction method for the large tower equipment, which saves the construction cost.

A large tower equipment inclination correction method comprises the following steps:

1) manufacturing a jacking support tool: manufacturing a plurality of sets of jacking support tools according to the deflection condition of the tower body;

2) determining the installation position and the number of the jacking support tools: and a certain number of jacking support tools are symmetrically welded in a 180-degree range of the low-position side of the skirt of the tower body.

3) Placing a steel plate and a jack: the steel plate is placed below the jacking support tool, the number of the steel plates is consistent with that of the jacking support tool, the jack is placed on the steel plate, the jack is adjusted to be in contact with the jacking support tool, and one set of jacking support tool corresponds to one jack.

4) Adding a cushion iron set: a group of sizing blocks are additionally arranged on the side, corresponding to each foundation bolt, of the higher side of the tower body, so that the contact area is increased to protect the foundation.

5) Loosening nuts on the foundation bolts in a grading manner: loosening all nuts on the foundation bolts, loosening 2-3 screw pitches each time, and keeping a gap between the nut and the pressing plate to be 3-5 mm;

and releasing all the constraints of the tower body and the periphery.

6) Lifting and adjusting a jack: after the restraint of the tower body and the surrounding is completely removed, all jacks are started to lift at the same time, and the height of each jack to be lifted is obtained according to calculation until the original sizing block can be pulled out;

in addition, new sizing blocks are added in groups to adjust the tower body, and two theodolites are used for monitoring the verticality of the tower body in two different directions in real time;

and repeating the steps 5) and 6) until the tower body is righted and the verticality reaches the standard specification requirement.

7) And (3) checking and checking: and (5) when the verticality meets the standard specification requirement, compacting all the sizing blocks, and checking the states of all the sizing blocks. And (4) loosening the jack, and then fastening the foundation bolt when the tower body falls on the sizing block and the tower verticality data is not changed.

8) And (4) finishing correction: and after the foundation bolts are fastened, the jack is taken out, the final data of the tower body are measured, and the correction is completed after the inspection is qualified.

In one embodiment, the thickness of the steel plate in the step 3) is 20-30 mm.

In one embodiment, in the jacking and adjusting process of the step 6), the gap between the nut and the pressing plate is kept to be 3-5 mm all the time.

In one embodiment, the jack jacking process in step 6) is monitored.

In one embodiment, the jack is an ultra-thin jack, and the number of the jacking support tools in the step 2) is 8-10.

In one embodiment, the jacking support tool is made of common carbon steel, the jacking support tool is welded on the rib plate edge of the tower body skirt, and all welding seams need to meet the stress requirement.

The invention has the advantages and beneficial effects that:

the correction method can avoid using a large crane, and greatly reduces the construction cost. The jacking support tool is simple in structure, convenient to manufacture, safe and reliable. In the construction process, the operation can be carried out after the simple steps are explained, and the operation is simple and convenient. The safety accidents caused by high-altitude operation are avoided, the efficiency is improved, the working surface is small, and the influence on the peripheral operation is extremely small.

The construction method has the characteristics of safety, energy conservation and accuracy, can be widely applied to petrochemical industry, metallurgy, electric power and bridge construction, even high-rise building industry, and can provide great convenience for construction and installation.

The method for correcting the tower body equipment which is inclined and has over-standard inclination is safe, safe and reliable, and can ensure that the perpendicularity of the equipment meets the standard specification requirement and the normal operation of the equipment is ensured.

Drawings

Fig. 1 is a schematic structural view of a jacking support tool, a jack and a base plate of the invention.

Fig. 2 is a side view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a schematic view showing the distribution of the jacks.

FIG. 5 is a main sectional view of the jacking seat tooling and the welding seam.

Fig. 6 is a side view of the jacking seat tooling.

Fig. 7 is a top view of the jacking seat tool.

Fig. 8 is a schematic view of a tower body in embodiment 1.

Fig. 9 is a schematic diagram of two theodolites in example 1 for real-time monitoring of tower perpendicularity in two different directions.

Detailed Description

In order to facilitate an understanding of the invention, a full description thereof will be given below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.