阅读说明：本技术 一种弧形走廊管道施工方法 (construction method of arc corridor pipeline ) 是由 彭鹏 韩勇 胡杰 于 2019-09-12 设计创作，主要内容包括：本发明公开了一种弧形走廊管道施工方法,属于建筑施工技术领域,该方法提前进行管段和配件的加工预制,待弧形管廊具备安装条件时,将预制完毕的管段和配件运至管廊进行安装；所述管段及配件的工厂化加工预制,根据BIM精确建模设计的加工图进行自动化加工；弧形管廊安装时,对所述预制管段和配件进行模块化吊装；管道组装时使用全螺栓连接。本发明工厂化预制装配,施工方便、快捷,施工现场零焊接作业,避免了传统施工工艺在现场施工过程中产生的空气污染和对工人的身体伤害,达到绿色施工标准,具有良好的经济效益和社会效益,值得在机电安装施工中全面推广。(The invention discloses a construction method of an arc corridor pipeline, which belongs to the technical field of building construction, wherein the method comprises the steps of processing and prefabricating a pipe section and accessories in advance, and transporting the prefabricated pipe section and accessories to a pipe gallery for installation when an arc pipe gallery has installation conditions; the pipe sections and the fittings are prefabricated in an industrial processing mode, and automatic processing is carried out according to a processing diagram of BIM accurate modeling design; when the arc-shaped pipe gallery is installed, the prefabricated pipe sections and the fittings are hoisted in a modularized mode; the pipes are assembled using full bolts. The invention has the advantages of factory prefabrication and assembly, convenient and quick construction, zero welding operation on the construction site, avoidance of air pollution and harm to the body of workers generated in the field construction process of the traditional construction process, achievement of green construction standards, good economic and social benefits and worth of comprehensive popularization in electromechanical installation and construction.)

1. a construction method of an arc corridor pipeline is characterized in that the method carries out processing prefabrication of a pipe section and accessories in advance, and when an arc pipe gallery has installation conditions, the prefabricated pipe section and accessories are transported to the pipe gallery to be installed;

the pipe sections and the fittings are prefabricated in an industrial processing mode, and automatic processing is carried out according to a processing diagram of BIM accurate modeling design;

When the arc-shaped pipe gallery is installed, the prefabricated pipe sections and the fittings are hoisted in a modularized mode;

The pipes are assembled using full bolts.

2. the method of claim 1, wherein the automated processing comprises full-automatic intersecting line cutting and full-automatic welding robot welding.

3. a method for constructing curved corridor ducts according to claim 1 or 2, characterised in that the method is carried out by the following steps:

1) And positioning and measuring the installed pipeline:

Determining a plane datum point and an elevation datum line, measuring the installed pipeline parameters by using a measuring tool, wherein the pipeline parameters comprise the height and the position of a spray main pipe, the thickness of a flange, an elbow and the length of a valve, and processing data;

2) And BIM comprehensive design and arrangement:

according to the measurement data, high-precision modeling is carried out on the pipeline and the support system in the pipe gallery by utilizing the BIM technology to form a processing drawing;

3) splitting and dividing the prefabricated pipe section:

splitting the pipe sections according to the hoisting sequence and the hoisting combination of the pipe sections, and numbering the pipe sections according to the transportation sequence and the hoisting sequence after splitting; carrying out detailed processing drawing design on each split pipe section;

4) and prefabricating the pipe sections and the brackets in a factory:

Performing factory prefabrication of each pipe section and each bracket according to a detailed processing drawing;

5) the installation of support base and pole setting:

Firstly, installing vertical rods of the support hangers, and then hoisting the pipeline after the vertical rods are installed;

6) assembling and hoisting the pipeline:

assembling the pipe sections into a whole according to the pipeline hoisting combination in sequence, hoisting the combined pipe sections after combination, wherein the hoisting height is higher than the mounting height of the cross arm of the bracket;

7) mounting a bracket cross arm;

8) And fixing the pipeline.

4. The method of claim 3, wherein the measuring tools comprise a laser line projector, a laser range finder, a line weight, a steel tape, a triangular steel rule, and BIM loft.

5. the method of claim 3, wherein the prefabricated pipe sections are split, the split pipes are connected by flanges, and the split points utilize valve positions in the pipe system.

6. a method as claimed in claim 3, wherein the prefabricated pipe sections are split by flange welding to a straight pipe section of greater than 100mm length.

7. A method as claimed in claim 6, wherein the prefabricated pipe sections are split so that straight pipe sections are provided in front of and behind the valve to prevent direct connection of the valve to the pipe elements;

when the design interval of the parallel horizontal pipelines is too small, the valves are installed in a staggered mode, the valves on the parallel vertical pipelines are installed at the same height, and the clear distance between the hand wheels is not smaller than 100 mm.

8. the method for constructing the arc-shaped corridor pipeline according to claim 3, wherein the pipe sections are integrally and sequentially hoisted from small to large and from top to bottom during hoisting.

9. the construction method of the arc corridor pipeline according to claim 3, wherein when the hoisting point for assembling and hoisting the pipeline is selected, the rooting base of the pipeline bracket is selected as the main hoisting point, and the pipeline is hoisted by using the drainage reserved hole of the upper toilet and the water pipe well opening.

10. The method for constructing the arc-shaped corridor pipeline according to claim 3, wherein when the support cross arm is installed, the cross arm is fixed after the pipelines of the same layer cross arm are all hoisted; for the shared support, after the upper-layer pipeline is installed and fixed, the lower-layer cross arm pipeline is lifted, the electric hoist is detached after the cross arm is fixed, and other pipeline sections are repeatedly lifted.

Technical Field

the invention relates to the technical field of building construction, in particular to a construction method of an arc corridor pipeline.

Background

With the continuous development of the building industry, new technology and new technology are continuously emerging, and with the progress of the times, the requirements of people on the building quality are increasingly improved. For modern buildings, comprehensive arrangement of professional pipelines in the arc corridor is an indispensable project, and arc pipeline cold bending manufacturing is adopted in traditional arc pipeline construction, so that the construction process is complex and the cost is high. The traditional cold bending of the arc-shaped pipeline is troublesome and time-consuming, and the modern pipe gallery construction cannot be met.

disclosure of Invention

The technical task of the invention is to provide the construction method of the arc corridor pipeline, aiming at the defects, which can accelerate the construction progress, reduce the construction period, is convenient and quick to install and can meet the requirement of green construction.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a method for constructing pipelines of an arc corridor is characterized in that the technological process is preposed, pipe sections and accessories are prefabricated in advance, and the prefabricated pipe sections and accessories are transported to a pipe gallery for installation when the arc pipe gallery has installation conditions;

The pipe sections and the fittings are prefabricated in an industrial processing mode, automatic processing is carried out according to a processing diagram designed by BIM accurate modeling, and the processing quality and efficiency are improved;

when the arc-shaped pipe gallery is installed, the prefabricated pipe sections and the fittings are hoisted in a modularized mode, and hoisting speed is increased;

the pipeline is connected by using the full bolts during assembly, and zero welding operation is performed on site, so that air pollution and physical injury to workers in the site construction process of the traditional construction process are avoided, and the green construction standard is reached.

through the BIM technology, each professional pipeline in the arc corridor is comprehensively arranged and accurately modeled, the pipeline installation position and elevation are determined, the prefabricated processing section of the pipeline is divided in detail, a hanger form and installation positions are set, a professional factory carries out numbering according to a BIM processing diagram, a support worker pipe section and a hanger, after the pipe section and the hanger are processed, the pipe section and the hanger are conveyed to the arc corridor site, site constructors carry out assembling and hoisting according to the BIM processing diagram and the pipe section support numbering, and construction can be efficiently and accurately completed according to the hoisting sequence determined by the construction scheme.

The method is suitable for the pipeline installation construction of the arc corridor of public buildings and civil buildings.

Preferably, the automated processing includes cutting with a full-automatic intersection line cutting machine and welding with a full-automatic welding robot. The processing quality can be ensured, and the processing efficiency is improved.

preferably, the method comprises the following steps:

1) And positioning and measuring the installed pipeline:

Determining a plane datum point and an elevation datum line by combining actual field conditions, measuring the installed pipeline parameters by using a measuring tool, wherein the pipeline parameters comprise the height and the position of a spray main pipe, the thickness of a flange, the length of an elbow and the length of a valve, and processing data;

2) And BIM comprehensive design and arrangement:

According to the measurement data, high-precision modeling is carried out on the pipelines and the support body system in the pipe gallery by utilizing the BIM technology, a detailed processing drawing is formed, and the problem of circular arc splicing of various professional pipelines is solved through arrangement;

3) splitting and dividing the prefabricated pipe section:

Splitting the pipe sections according to the hoisting sequence and the hoisting combination of the pipe sections, and numbering the pipe sections according to the transportation sequence and the hoisting sequence after splitting; designing detailed processing drawings of each split pipe section, wherein each pipe section processing drawing comprises detailed information such as a pipe section top view, a left view, a front view, a three-dimensional drawing and the like;

4) and prefabricating the pipe sections and the brackets in a factory:

performing factory prefabrication of each pipe section and each bracket according to a detailed processing drawing, and distinguishing each system after the pipe sections are disassembled for processing respectively in order to improve the processing quality and reduce the processing time;

5) the installation of support base and pole setting:

All the support hangers are assembled, all the support hanger bases are installed in a positioning mode according to a drawing, if support installation is carried out firstly, partial pipelines cannot be hoisted, and therefore vertical rods of the support hangers are installed firstly, and the pipelines are hoisted after the vertical rods are installed;

6) Assembling and hoisting the pipeline:

assembling the pipe sections into a whole according to the pipeline hoisting combination in sequence, hoisting the combined pipe sections after combination, wherein the hoisting height is higher than the mounting height of the cross arm of the bracket;

7) mounting a bracket cross arm;

8) and fixing the pipeline.

Preferably, in order to guarantee the measurement accuracy, the measuring tool comprises a laser line projector, a laser range finder, a line weight, a steel tape, a triangular steel ruler and a BIM lofting. The laser line projector, the laser range finder and the line weight are used for measuring the height and the position of the spray main pipe, the steel tape and the triangular steel ruler are used for measuring the thickness of the flange, the length of the elbow and the length of the valve, and data processing is carried out through BIM lofting.

Preferably, the prefabricated pipe sections are split, and the split pipelines are connected by flanges, so that split points utilize valve positions in a pipeline system to reduce the number of connecting flanges.

preferably, when the prefabricated pipe section is detached, the flange is welded on the straight pipe section with the length of more than 100mm, and the flange is not welded on the bent pipe or the elbow.

Furthermore, when the prefabricated pipe sections are disassembled, the prefabricated pipe sections are provided with straight pipe sections in front and at the back of the valve, so that the direct connection between the valve and the pipe fitting is strictly avoided;

when the design interval of the parallel horizontal pipelines is too small, the valves are installed in a staggered mode, the valves on the parallel vertical pipelines are installed at the same height, and the clear distance between the hand wheels is not smaller than 100 mm.

Preferably, the pipe sections are hoisted integrally and sequentially from east to west, from small to large and from top to bottom from the east to south of the pipe gallery.

preferably, when the hoisting point for assembling and hoisting the pipeline is selected, in order to facilitate hoisting of the pipeline section, the rooting base of the pipeline bracket is selected as the main hoisting point, and the upper-layer toilet drainage reserved hole and the water pipe well opening are used for hoisting, so that a new hoisting point is avoided.

preferably, when the support cross arm is installed, for the pipelines on the same layer of cross arm, after the pipelines are all hoisted, the cross arm is fixed; for the shared support, after the upper-layer pipeline is installed and fixed, the lower-layer cross arm pipeline is lifted, the electric hoist is detached after the cross arm is fixed, and other pipeline sections are repeatedly lifted.

compared with the prior art, the construction method of the arc corridor pipeline has the following beneficial effects:

The method has the advantages of novel scheme, complete design, construction integration, factory prefabrication and assembly, reduction of construction period and acceleration of construction progress; meanwhile, the construction method of the arc-shaped pipeline is convenient and quick in construction, zero welding operation is performed on a construction site, air pollution and harm to bodies of workers in the field construction process of the traditional construction process are avoided, the green construction standard is achieved, good economic benefits and social benefits are achieved, and the method is worthy of being popularized in electromechanical installation construction.

drawings

FIG. 1 is a process flow diagram of the method of constructing an arcuate corridor conduit according to the present invention;

FIG. 2 is a BIM layout plan of the arc pipe gallery in the embodiment;

fig. 3 fig. 2 is a three-dimensional diagram of the BIM layout of the arc-shaped pipe gallery.

Detailed Description

The invention is further described with reference to the following figures and specific examples.

a construction method of an arc corridor pipeline comprises the following steps:

the process flow is preposed, the pipe sections and the fittings are prefabricated in advance, and the prefabricated pipe sections and the prefabricated fittings are transported to a pipe gallery for installation when the arc-shaped pipe gallery has installation conditions;

the pipe sections and the accessories are prefabricated in an industrial processing mode, automatic processing is carried out according to a processing diagram designed by BIM accurate modeling, cutting by a full-automatic intersection line cutting machine and welding by a full-automatic welding robot are included, and the processing quality and efficiency are improved;

when the arc-shaped pipe gallery is installed, the prefabricated pipe sections and the fittings are hoisted in a modularized mode, and hoisting speed is increased;

the pipeline is connected by using the full bolts during assembly, and zero welding operation is performed on site, so that air pollution and physical injury to workers in the site construction process of the traditional construction process are avoided, and the green construction standard is reached.

through the BIM technology, each professional pipeline in the arc corridor is comprehensively arranged and accurately modeled, the pipeline installation position and elevation are determined, the prefabricated processing section of the pipeline is divided in detail, a hanger form and installation positions are set, a professional factory carries out numbering according to a BIM processing diagram, a support worker pipe section and a hanger, after the pipe section and the hanger are processed, the pipe section and the hanger are conveyed to the arc corridor site, site constructors carry out assembling and hoisting according to the BIM processing diagram and the pipe section support numbering, and construction can be efficiently and accurately completed according to the hoisting sequence determined by the construction scheme.

The method is suitable for the pipeline installation construction of the arc corridor of public buildings and civil buildings.