What is the difference between assembly line construction and assembly section construction?

The assembly line method refers to all procedures to be done one by one, and the next section can only be done after completing this section; The flow section refers to the time when you do this section, and you can carry out the construction of the next section. For example, a floor is divided into two sections, and during the construction of the assembly line method, the first section of formwork, tying reinforcement, and after pouring concrete, the formwork of the second section is carried out, and the reinforcement construction is carried out. The construction of the flow section refers to the first section of formwork after the completion of the start of tying ribs, and the second section of the formwork at the same time.

After the first section of the reinforcement is completed, the concrete is poured at the same time as the second section begins to be tied. Compared with the two construction methods, the construction period of the assembly line method is longer than that of the flow section method, and the construction personnel have more workers, and the efficiency is much worse.

In layman's terms, assembly line construction generally refers to a process, the front and rear handover time can not be crossed, can only be done step by step, such as steel bar binding engineering, the order should be roughly 1, steel bar sample review, 2Steel bar blanking production, 3 steel bars in place binding, 4, protective cushion block installation, 5, self-inspection and acceptance, rectification, 6, concealed engineering acceptance. The flow section is to represent a work content divided into several flow sections for construction, which can be a process or a monomer.

For example, you can divide the work of steel bar binding into several flow sections according to the location and elevation building number, and carry out flow or cross operation; It is also possible to divide the steel bar binding, formwork making, concrete pouring, etc. into a flow section for cross or flow construction. The construction handover time of each flow section can be appropriately adjusted for crossover to save man-hours.

This is too strange, if you are interested, take a look at the examination book P248 for the first-class constructor highway engineering practice, and ,—— it

3. Linear flow construction organization ,...... pavement engineeringThe following content talks about how to lap construction, isn't this the flow section method mentioned upstairs?

4. The construction organization of the flow section of the channel and culvert is ,......The flow construction of the flow section mode often has the phenomenon of nesting or idle working face.

It's the opposite of what the two upstairs said!!

Advantages of flow construction: the construction period is relatively reasonable; The realization of specialized construction can make the operation skills of workers proficient, better ensure the quality of the project, and improve labor productivity; The amount of resources invested in construction per unit time is relatively balanced, which is conducive to the organization of resources.

The main conditions for organizing flow construction are as follows:

1) Divide the construction section.

2) Divide the construction process, and organize independent construction teams for each construction process.

3) Arrange the continuous and balanced construction of the construction team of the main construction process.

4) Organize parallel lap construction as much as possible in different construction processes.

In flow construction, flow construction is classified into three categories: non-rhythmic flow construction, isorhythmic flow construction and heterorhythmic flow construction according to the characteristics of flow rhythm.

The basic principle of the flow construction method.

The first is to require that the construction object be reasonably divided into a number of independent construction sections.

The construction section can be a sub-project of the same category that spans several individual projects, such as foundation piling works; It can be a batch of unit works of the same type, such as several residential buildings; It can also be a sub-project of a unit project, such as bricklaying or painting.

As long as the process is the same and the amount of work is comparable, it can be equipped with various professional workers according to different processes to form a fixed group, construction team, mixed construction team, in accordance with the strict sequence and accurate cycle, and transfer from one construction section to another construction section in turn, and continuously carry out rhythmic and identical operations.

The second is to stipulate the appropriate flow step distance, that is, the time between the start and completion of two adjacent sections.

When the time spent by a group, construction team or mixed construction team in a construction section is equal to a flow step or an integer multiple of the flow step distance, the construction can be carried out uninterruptedly, forming a rhythmic, continuous and balanced flow operation.

Advantages: 1. Flow construction can make reasonable use of the working face to speed up the construction progress and shorten the construction period. 2. It can maintain the continuity and balance of each construction process, so as to improve the level of construction management and technical and economic benefits.

3. Make each construction group maintain the same operation and continuous and balanced construction in a certain period of time, which is conducive to improving labor production efficiency. Organizational conditions: divide the distribution of sub-projects, divide the construction sections, organize independent construction groups in each construction process, and the main construction process must be continuous and balanced construction.

The different construction processes are organized as much as possible in parallel lap construction.

The advantages of flow construction are: less cross operations, less mutual interference, which is conducive to the improvement of construction speed. However, it must be well organized, well arranged, and the construction sequence must be clearly classified, and to do this, the leader must know in advance.

In order to make the construction section reasonably divided, the following principles should generally be followed:

The amount of labor of the same professional team in each construction section should be roughly equal, and the difference should not exceed 10 15;

There should be enough working face in each construction section to ensure the production efficiency of the corresponding number of workers and leading construction machinery, and meet the requirements of reasonable labor organization;

The boundary of the construction section should be consistent with the structural boundary (such as settlement joints, expansion joints, etc.) as much as possible, or be located in the part that has little impact on the integrity of the building structure to ensure the integrity of the building structure;

The main conditions for organizing flow construction are as follows:

1) Divide the construction section (conceptual division).

2) Divide the construction process, and organize independent construction teams for each construction process.

3) Arrange the continuous and balanced construction of the construction team of the main construction process.

4) Organize parallel lap construction as much as possible in different construction processes.

It's the progress of the main project division, right?

1. The transfer of production workers and equipment from one construction section to another replaces the flow of building products. The flow of production flows both in the horizontal direction of the building and in the vertical direction of the building.

2. Each construction process on the same construction section maintains the characteristics of sequential construction, and different construction processes maintain the characteristics of parallel construction to the greatest extent in different construction sections.

3. The same construction process maintains the characteristics of continuous construction, and different construction processes are constructed as continuously as possible in the same construction section.

4. The production of resources per unit time is basically the same as the consumption.

Flow construction: It is to decompose the whole process of the proposed project into a number of construction processes (N) in the process, divide the construction plane (or vertically) into a number of construction sections (m), and then organize the corresponding professional work team according to the construction process, and the professional work team completes the construction process of each construction section in the corresponding order and from front to back.

The characteristics of the plum and water construction are: the scientific use of the working face, the time is obtained, and the calculation of the total construction period is more reasonable; The realization of specialized operations is conducive to the skilled mastery of operation technology and improvement of operation technology, better guarantee the quality of the project and improve labor productivity; Continuous operation has been realized, and the reasonable overlap between adjacent professional teams has been achieved to the greatest extent; The amount of resources invested in construction per unit time is relatively balanced, which is conducive to the organization of resources. It has created favorable conditions for civilized construction and scientific management of the site.

The type of seepage used in flow construction.

1) Equal rhythm of flowing water - the flow of which shouts staring at the water, the beat is all equal and equal to the flow of water steps.

2) Different-rhythm flow water (multiplied beat water) - the same construction process has equal flow beats on each construction section, and the flow beats of different construction processes are not necessarily equal. Generally, multiples can be composed to speed up the exponential beat flow construction.

3) Rhythmless flow – the flow rhythm is not regular. The principle of organization is to make the construction team work continuously (the working face may be free).

According to the structural characteristics, plane size and engineering quantity, the basement structure and the above-ground structure are divided into flow sections. During the construction of the structure, according to the structural design form and engineering quantity, as well as the position of the post-pouring belt, the corresponding flow section of the dry limb source is divided to obtain the same flow rhythm and balance the flow flow. See the division diagram of the flow section of the underground structure and the above-ground structure.

In order to make the construction section reasonably divided, the following principles should generally be followed:

The amount of labor of the same professional team in each construction section should be roughly equal, and the difference should not exceed 10 15;

There should be enough working face in each construction section to ensure the production efficiency of the corresponding number of workers and leading construction machinery, and meet the requirements of reasonable labor organization;

The boundary of the stateless construction section should be consistent with the structural boundary (such as settlement joints, expansion joints, etc.) as much as possible, or be located in the part that has little impact on the integrity of the building structure to ensure the integrity of the building structure;

The number of construction sections should meet the requirements of reasonable organization of flow construction. If the number of construction sections is too large, the construction speed will be reduced and the construction period will be extended; The construction section is too small, which is not conducive to making full use of the working face, and may cause nest work;

For multi-storey buildings, structures or projects that need to be constructed in layers, they should be divided into both construction sections and construction layers.

Legal basis: Article 795 of the Civil Code of the People's Republic of China The content of the construction contract generally includes the scope of the project, the construction period, the commencement and completion time of the intermediate delivery project, the quality of the project, the project cost, the delivery time of technical data, the responsibility of materials and equipment, the appropriation and settlement, the completion acceptance, the scope and duration of the quality warranty, and mutual cooperation.

Legal analysis: The division of the construction flow section is based on the structural characteristics, plane size and engineering quantity, and the basement structure and the above-ground structure are divided into flow sections. During the construction of the structure, according to the structural design form and engineering quantity, as well as the position of the post-band disturbing pouring belt, etc., the corresponding flow section is divided into the same flow rhythm and balanced flow.

See the division diagram of the flow section of the underground structure and the above-ground structure.

Legal basis: Article 795 of the Civil Code of the People's Republic of China The content of the construction contract generally includes the scope of the project, the construction period, the commencement and completion time of the intermediate delivery project, the quality of the project, the cost of the project, the delivery time of technical data, the responsibility of materials and equipment, the appropriation and settlement, the acceptance of the completion of the project, the scope of the quality warranty and the quality assurance period, and mutual cooperation.

The basic methods of flow construction include fixed beat flow construction, general double beat flow construction, accelerated double beat flow construction, and non-rhythm flow construction.

The specific steps of the flow construction organization are: the whole construction process of the proposed engineering project is decomposed into a plurality of construction processes in the process, divided into a plurality of construction sections on the plane, divided into a plurality of construction layers vertically, and then a professional team (or group) is formed in accordance with the construction process, and it is continuously invested in each construction section in accordance with the prescribed order, and each construction process is completed.

The advantage of flow construction is that each team can carry out specialized construction, thus creating favorable conditions for workers to improve their technical proficiency and improve operating methods and production tools, which can fully improve labor productivity. Labor productivity is improved, which can reduce the number of workers and temporary facilities, which can save investment and reduce costs; At the same time, professional construction helps to ensure the quality of the project.

Organizational form of flow construction:

1.Rhythmless flow construction: Rhythmless flow construction refers to the flow construction in which all or part of the construction process is not equal in the flow rhythm of each construction section when organizing flow construction. This kind of construction is the most common type of flow construction.

2.Constant rhythm flow construction: Equal rhythm flow construction refers to the flow construction in which the flow beats of each construction process are equal in the rhythm flow construction, also known as fixed beat flow construction or congruent rhythm flow construction.

3.Heterorhythmic flow construction: Heterorhythmic flow construction refers to the flow construction in which the flow rhythm of the same construction process on each construction section is equal and the flow beat between different construction processes is not equal.

According to the structural characteristics, plane size and engineering quantity, the construction flow section is divided into the basement structure and the ground or state structure. During the construction of the structure, according to the structural design form and engineering quantity, as well as the position of the post-pouring belt, the corresponding flow section is divided to obtain the same flow rhythm of the Zen group beam and balance the flow of water. See the division diagram of the underground structure and the above-ground structure flow section of Heyun.