Construction method for pouring side wall of main body project of working well section of open cut tunnel

Abstract

The invention discloses a construction method for side wall pouring of an open-cut tunnel working well section main body project, which comprises the following steps of: selecting a steel template according to the side wall pouring height and segmented pouring times, and dividing a side wall pouring project into a first construction project and a plurality of second construction projects; when first construction engineering construction is carried out, after bottom plate pouring treatment and short side wall pouring treatment are carried out, two steel formworks and a plurality of triangular supporting supports are matched to form corresponding first side wall pouring spaces, concrete pouring is carried out on the two first side wall pouring spaces, and two first side wall sections are obtained; and when each second construction project is constructed, after the plate buckle type full framing with the corresponding height is erected, the two steel formworks and the multiple triangular supporting frames are matched to form corresponding second side wall pouring spaces, concrete pouring is conducted on the two second side wall pouring spaces, and two second side wall sections are obtained. According to the technical scheme, the side wall pouring construction efficiency can be improved, and the side wall pouring construction cost can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of side wall casting construction, and in particular to a construction method for casting the side wall of a main project of an open-cut tunnel working section. Background Art

[0002] The cast-in-place construction of the side walls of the main project of the working shaft section of a conventional open-cut tunnel currently mainly adopts the construction technology of disc brackets + wooden formwork, and the casting is carried out in sections. However, in actual application, this side wall casting method cannot be set up and reused over a large area due to the limited bearing capacity of the wooden formwork. As a result, not only the construction area is limited each time, and more casting operations are required to complete the overall casting construction of the side wall, which seriously affects its construction efficiency, but also leads to a low turnover rate and turnover frequency of the formwork, resulting in high construction costs. Summary of the Invention

[0003] The embodiment of the present application provides a construction method for casting the side walls of the main project of the working section of an open-cut tunnel, aiming to improve the technical problems of low construction efficiency and high construction cost of the side wall casting process in the prior art.

[0004] To this end, an embodiment of the present application provides a construction method for casting the side walls of the main engineering section of an open-cut tunnel working section, the construction method comprising the following steps:

[0005] Determining the side wall pouring height and the number of segmented pouring times of the working well section to be constructed according to the design requirements of the construction drawings, selecting a steel formwork with a first preset height according to the side wall pouring height and the number of segmented pouring times, and dividing the side wall pouring project of the working well section to be constructed into a first construction project and a plurality of second construction projects to be constructed sequentially from bottom to top;

[0006] During the construction of the first construction project, after the bottom plate and the low side wall are cast in the working well section to be constructed in sequence according to the design requirements of the construction drawings, corresponding first side wall casting spaces are formed respectively by using the two steel formworks and a plurality of triangular support brackets in conjunction with the side walls of the corresponding working well section to be constructed, and concrete is poured in the two first side wall casting spaces to obtain two first side wall sections;

[0007] When carrying out each of the second construction projects, after setting up the corresponding height of the disc-type full-floor support for the working section to be constructed according to the design requirements of the construction drawings, the two steel formworks and several triangular support brackets are used to cooperate with the side walls of the corresponding working section to be constructed to form corresponding second side wall casting spaces, and concrete is poured in the two second side wall casting spaces to obtain two second side wall sections.

[0008] Optionally, in some embodiments of the present application, the step of sequentially performing bottom plate casting and low side wall casting on the working well section to be constructed according to the design requirements of the construction drawings includes:

[0009] According to the design requirements of the construction drawings, the bottom plate is first cast on the working well section to be constructed, so as to form a bottom plate portion for paving the bottom wall of the working well section to be constructed in the working well section;

[0010] According to the design requirements of the construction drawings, the low side walls are cast on the working section to be constructed, so as to form two low side walls protruding on both sides of the bottom plate, and each of the low side walls is arranged close to the side wall of the corresponding side of the working section to be constructed.

[0011] Optionally, in some embodiments of the present application, the step of casting the low side wall on the working well section to be constructed so as to protrude on both sides of the bottom plate to form two low side walls, and making each of the low side walls closely attached to the side wall on the corresponding side of the working well section to be constructed includes:

[0012] On both sides of the bottom plate, a low side wall with a second preset height is cast close to the side wall corresponding to the side of the working well section to be constructed, and during the casting process of each low side wall, at least one first connecting member is embedded in advance, so that each of the low side walls after casting is provided with at least one first connecting member protruding on the side away from the side wall corresponding to the working well section to be constructed.

[0013] Optionally, in some embodiments of the present application, the step of forming corresponding first side wall casting spaces respectively by using the two steel formworks and a plurality of triangular support brackets to cooperate with the side walls of the corresponding working well section to be constructed, and pouring concrete in the two first side wall casting spaces to obtain two first side wall sections includes:

[0014] According to the design requirements of the construction drawings, a steel formwork is detachably fixedly installed on a side of each of the short side walls away from the side wall corresponding to the side of the working well section to be constructed, so as to form a first side wall casting space between each of the steel formwork and the side wall corresponding to the side of the working well section to be constructed;

[0015] According to the design requirements of the construction drawings, at least one triangular support bracket is detachably fixedly arranged on the side of each steel formwork away from the side wall corresponding to the working well section to be constructed, and concrete is poured into the corresponding first side wall pouring space through the construction platform provided by all the corresponding triangular support brackets to obtain two first side wall sections.

[0016] Optionally, in some embodiments of the present application, the steel formwork is detachably fixed by at least one of the first connecting members.

[0017] Optionally, in some embodiments of the present application, the triangular support bracket is detachably fixed to the corresponding steel formwork through a plurality of second connecting members, and the bottom side of the triangular support bracket is also detachably fixed to the bottom plate portion through a plurality of I-beam connecting members.

[0018] Optionally, in some embodiments of the present application, during the process of pouring concrete in each of the first side wall pouring spaces, at least one third connecting member is also pre-embedded, so that the top of each of the first side wall sections that have been poured is protruding with at least one of the third connecting members on the side away from the side wall corresponding to the working well section to be constructed.

[0019] Optionally, in some embodiments of the present application, the step of erecting a disc-type full-height support of a corresponding height for the working well section to be constructed according to the design requirements of the construction drawings includes:

[0020] A disc-type full-floor support is erected from bottom to top above the base plate until the top side of the erected disc-type full-floor support is flush with the top side of the side wall section cast in the previous construction project, and then a flat support structure is laid on the top side of the erected disc-type full-floor support.

[0021] Optionally, in some embodiments of the present application, the step of forming corresponding second side wall casting spaces respectively by using the two steel formworks and the plurality of triangular support brackets to cooperate with the side walls of the corresponding working well section to be constructed, and pouring concrete in the two second side wall casting spaces to obtain two second side wall sections includes:

[0022] According to the design requirements of the construction drawings, a steel formwork is detachably fixedly installed on the top of the side wall section cast in the previous construction project, away from the side wall corresponding to the side of the working well section to be constructed, so as to form a second side wall casting space between each steel formwork and the side wall corresponding to the side of the working well section to be constructed;

[0023] According to the design requirements of the construction drawings, at least one triangular support bracket is detachably fixedly arranged on the side of each steel formwork away from the side wall corresponding to the working well section to be constructed, and concrete is poured into the corresponding second side wall pouring space through the construction platform provided by all the corresponding triangular support brackets to obtain two second side wall sections.

[0024] Optionally, in some embodiments of the present application, during the process of pouring concrete in each second side wall pouring space, at least one fourth connecting member is also pre-embedded, so that the top of each second side wall section that has been poured is protruding with at least one fourth connecting member on the side away from the side wall corresponding to the working well section to be constructed.

[0025] The technical solution of this application provides a construction method for casting the side walls of the main project of the open-cut tunnel working section. Through the above-mentioned method steps, it can form a construction process of steel formwork + triangular support bracket + disc-type full-height bracket to complete the side wall casting process of the main project of the open-cut tunnel working section. In addition, during the side wall casting process, since the steel formwork has sufficient bearing capacity, the construction personnel can choose a larger area of ​​steel formwork according to the actual construction efficiency requirements to effectively reduce the number of segmented construction and improve the efficiency of its side wall casting construction. At the same time, during the entire side wall casting process, whether it is the construction of the first construction project or the construction of the second construction project multiple times, the steel formwork and triangular support bracket, and even the disc-type full-height bracket used, can be repeatedly reused many times, thereby greatly improving the turnover rate and turnover number of the formwork and reducing its construction cost. It can be seen that this technical solution can effectively improve the technical problems of low construction efficiency and high construction cost of the side wall casting process in the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0027] Figure 1 A flowchart of a construction method for casting side walls of the main project of the open-cut tunnel working section provided in an embodiment of the present application.

[0028] Figure 2 for Figure 1 Schematic diagram of the construction site when the first construction project is carried out using the construction method shown Figure 1 .

[0029] Figure 3 for Figure 1 Schematic diagram of the construction site when the second construction project is carried out using the construction method shown Figure 1 .

[0030] Figure 4 for Figure 1 FIG. 1 is a flow chart of step S120 of the construction method shown.

[0031] Figure 5 for Figure 1 The flowchart of step S130 of the construction method is shown.

[0032] Description of Figure Numbers:

[0033] 10. Working section to be constructed; 11. Steel formwork; 12. Triangular support bracket; 13. Disc-type full-floor bracket; 14. First side wall casting space; 15. Second side wall casting space; 16. First connecting piece; 17. Third connecting piece; 18. Fourth connecting piece; 19. I-beam connecting piece; 20. Bottom plate; 21. Cantilever platform; 22. Flat support structure.

[0034] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0038] In one embodiment, Figure 1 As shown, the embodiment of the present application provides a construction method for casting the side wall of the main engineering of the working section of an open-cut tunnel, and the construction method specifically includes the following steps:

[0039] Step S110: Determine the side wall casting height and the number of segmented castings of the working well section to be constructed according to the design requirements of the construction drawings, and select a steel formwork with a first preset height according to the side wall casting height and the number of segmented castings, and divide the side wall casting project of the working well section to be constructed into a first construction project and several second construction projects that are constructed in sequence from bottom to top.

[0040] Specifically, if Figure 2 As shown, the construction drawings mentioned in the embodiment of the present application mainly indicate the design drawings of the main project of the tunneling working section. The construction drawings at least mark the design requirements for the side wall casting of the working section 10 to be constructed, including but not limited to the side wall casting height, the number of segmented castings, the side wall casting thickness, and other parameters such as various dimensional data involved in the construction of the working section 10 to be constructed. In this way, when the present construction method is implemented, the side wall casting height and the number of segmented castings of the working section 10 to be constructed can be determined according to the design requirements of the construction drawings, and based on the side wall casting height and the number of segmented castings, a steel formwork 11 with a first preset height is selected, and the side wall casting project of the working section 10 to be constructed is divided into a first construction project and several second construction projects to be constructed in sequence from bottom to top. Generally speaking, since there will be a certain amount of overlap in the casting between the construction projects, the product of the selected first preset height and the number of segmented castings is generally slightly larger than the side wall casting height. Furthermore, during the entire sidewall casting process, the first construction process is generally performed at the bottom of the work section 10 to be constructed, while the second construction process is generally performed at the rest of the work section 10 to be constructed, excluding the bottom. Aside from the differences in the height of the construction locations, the various construction steps of each second construction process are essentially the same. Furthermore, to ensure a safe construction environment during construction in the work section 10, steel support structures are typically installed within the work section 10 to be constructed. Therefore, during each stage of the sidewall casting process, care must be taken to avoid the corresponding steel support structures.

[0041] Step S120: When carrying out the first construction project, the bottom plate casting and the low side wall casting of the working section to be constructed are carried out in sequence according to the design requirements of the construction drawings. Then, two steel formworks and a number of triangular support brackets are used to cooperate with the side walls of the corresponding working section to be constructed to form corresponding first side wall casting spaces, and concrete is poured in the two first side wall casting spaces to obtain two first side wall sections.

[0042] Specifically, if Figure 2 As shown, when a steel formwork 11 with a first preset height is selected through the above-mentioned method steps, and the side wall casting project of the working well section 10 to be constructed is divided into a first construction project and several second construction projects to be constructed in sequence from bottom to top, the construction operation of the first construction project can be carried out first, specifically as follows: when carrying out the first construction project, the bottom plate casting process and the low side wall casting process of the working well section 10 to be constructed are carried out in sequence according to the design requirements of the construction drawings, and then corresponding first side wall casting spaces 14 are formed respectively by two steel formworks 11 and several triangular support brackets 12 in conjunction with the side walls of the corresponding working well section 10 to be constructed, and concrete is poured into the two first side wall casting spaces 14 to obtain two first side wall sections.

[0043] Step S130: When carrying out each second construction project, after setting up the corresponding height of the disc-type full-floor support for the work section to be constructed according to the design requirements of the construction drawings, two steel formworks and a number of triangular support brackets are used to cooperate with the side walls of the corresponding work section to be constructed to form corresponding second side wall casting spaces, and concrete is poured in the two second side wall casting spaces to obtain two second side wall sections.

[0044] Specifically, if Figure 3 As shown, when two first side wall sections are obtained through the above-mentioned method steps to complete the construction of the corresponding first construction project, the construction of each second construction project can be carried out in sequence from bottom to top, and the construction operation of each second construction project is specifically as follows: when carrying out each second construction project, after the corresponding height of the disc-type full-floor bracket 13 is erected for the construction work section 10 according to the design requirements of the construction drawings, two steel formworks 11 and a number of triangular support brackets 12 are used to cooperate with the side walls of the corresponding construction work section 10 to form corresponding second side wall casting spaces 15, and concrete is poured in the two second side wall casting spaces 15 to obtain two second side wall sections.

[0045] In this way, the construction method of the embodiment of the present application can form a construction process of steel formwork 11+triangular support bracket 12+disc-type full-height bracket 13 through the above-mentioned method steps to complete the side wall casting process of the main project of the open-cut tunnel working section. In addition, during the side wall casting process, since the steel formwork 11 has sufficient bearing capacity, the construction personnel can select a larger area of ​​steel formwork 11 according to the actual construction efficiency requirements to effectively reduce the number of segmented construction and improve the efficiency of its side wall casting construction. At the same time, during the entire side wall casting process, whether it is the construction of the first construction project or the construction of the second construction project multiple times, the steel formwork 11 and triangular support bracket 12, and even the disc-type full-height bracket 13, used therein, can be repeatedly reused many times, thereby greatly improving the turnover rate and turnover times of the formwork and reducing its construction cost.

[0046] In some examples, the specific process of executing the above method step of "casting the bottom plate and the low side wall in sequence for the construction work section according to the design requirements of the construction drawings" is as follows:

[0047] Step S121: According to the design requirements of the construction drawings, the bottom plate of the working well section to be constructed is first cast to form a bottom plate portion for paving the bottom wall of the working well section to be constructed.

[0048] Step S122: According to the design requirements of the construction drawings, cast the low side walls of the working section to be constructed, so as to form two low side walls on both sides of the bottom plate, and make each low side wall close to the side wall of the corresponding side of the working section to be constructed.

[0049] It is understandable that if Figure 2 As shown, the casting thickness of the bottom plate portion 20 can be adjusted according to actual construction needs to provide sufficient planar support for the entire side wall casting project. The casting of the two short side walls is the initial stage of the side wall casting. That is, the subsequent side wall casting process is to cast the corresponding side wall structure on the basis of each short side wall.

[0050] In this way, through the above method steps, it is possible to better complete the bottom plate casting process and the low side wall casting process for the construction work well section 10, laying a good construction foundation for the subsequent entire side wall casting project.

[0051] In some examples, the specific process of executing the above method step of "casting a low side wall for the working section to be constructed, so as to form two low side walls protruding on both sides of the bottom plate, and making each low side wall close to the side wall on the corresponding side of the working section to be constructed" is as follows: on both sides of the bottom plate 20, a low side wall with a second preset height is cast close to the side wall on the corresponding side of the working section 10 to be constructed, and in the casting process of each low side wall, at least one first connecting member 16 is embedded, so that each low side wall after casting has at least one first connecting member 16 protruding on the side away from the side wall on the corresponding side of the working section 10 to be constructed. It can be understood that the first connecting member 16 mentioned in this example can specifically be a 25mm diameter fine-rolled threaded steel bar. In this way, through the above method steps, at least one first connecting member 16 can be embedded in each low side wall after casting, so as to facilitate the subsequent better installation and fixation of the steel formwork 11.

[0052] In some examples, the specific process of executing the above method step of "forming corresponding first side wall casting spaces respectively by using two steel formworks and a plurality of triangular support brackets in conjunction with the side walls of the corresponding working well section to be constructed, and pouring concrete in the two first side wall casting spaces to obtain two first side wall sections" is as follows:

[0053] Step S123: According to the design requirements of the construction drawings, a steel formwork is detachably fixedly installed on the side of each low side wall away from the side wall corresponding to the working section to be constructed, so as to form a first side wall casting space between each steel formwork and the side wall corresponding to the working section to be constructed.

[0054] Step S124: According to the design requirements of the construction drawings, at least one triangular support bracket is detachably fixedly provided on the side of each steel formwork away from the side wall corresponding to the working section to be constructed, and concrete is poured into the corresponding first side wall pouring space through the construction platform provided by all the corresponding triangular support brackets to obtain two first side wall sections.

[0055] It is understandable that if Figure 2 As shown, the steel formwork 11 can be removably fixed by at least one first connecting member 16. Furthermore, during the construction process of the steel formwork 11, the steel formwork 11 can be removably fixed by the pull rod action of the upper and lower embedded parts of the bottom plate portion 20 or the short side wall (i.e., including at least one first connecting member 16). At the same time, since at least one triangular support bracket 12 can be removably fixed on the side of each steel formwork 11 away from the side wall corresponding to the working well section 10 to be constructed, the stable setting of each steel formwork 11 can be ensured by at least one triangular support bracket 12, thereby further ensuring that each steel formwork 11 has sufficient bearing capacity. The specific number of triangular support brackets 12 can be adaptively adjusted according to the casting width of the side wall. Furthermore, each triangular support bracket 12 can be removably fixed to the corresponding steel formwork 11 by a number of second connecting members, and the bottom side of the triangular support bracket 12 can also be removably fixed to the bottom plate portion 20 by a number of I-beam connecting members 19. A timber structure can also be installed between the I-beam connectors 19 and the base plate 20 to increase their load-bearing capacity. This allows the triangular support brackets 12 and steel formwork 11 to be adjusted using the I-beam connectors 19 and the timber structure to ensure the structural dimensions of the side wall to be cast. Furthermore, a cantilevered platform 21 is installed above each triangular support bracket 12, serving as a construction platform for pouring concrete in the corresponding first side wall casting space. Construction workers can stand on this platform to perform the corresponding concrete pouring operations in the corresponding first side wall casting space.

[0056] In this way, through the above-mentioned method steps, it is possible to better form corresponding first side wall casting spaces 14 respectively through two steel formworks 11 and several triangular support brackets 12 in conjunction with the side walls of the corresponding working well section 10 to be constructed, and pour concrete into the two first side wall casting spaces 14 to obtain two first side wall sections.

[0057] In some examples, such as Figure 2As shown, during the process of pouring concrete in each first side wall pouring space 14, at least one third connector 17 is also pre-embedded, so that the top of each first side wall section that has been poured is provided with at least one third connector 17 on the side away from the side wall corresponding to the working well section 10 to be constructed. It is understood that the specific implementation structure of the third connector 17 mentioned in this example can be similar to or the same as the first connector 16. In this way, through the above method steps, at least one third connector 17 can be pre-embedded on the top of each first side wall section that has been poured, so as to better facilitate the installation and fixation of the steel formwork 11 in the subsequent construction project.

[0058] In some examples, the specific process of executing the above method step of "erecting the corresponding height of the disc-type full-floor support 13 for the construction work well section 10 according to the design requirements of the construction drawings" is as follows: erect the disc-type full-floor support 13 from bottom to top above the bottom plate 20, until the top side of the erected disc-type full-floor support 13 is flush with the top side of the side wall section cast in the previous construction project, and then lay the flat-plate support structure 22 on the top side of the erected disc-type full-floor support 13. In this way, through the above method steps, the disc-type full-floor support 13 and the flat-plate support structure 22 can be better used to provide a plane support of a corresponding height for the construction of the current second construction project, so that the construction of each second construction project is carried out at the same height from the corresponding support plane, so as to effectively simplify the construction process of each second construction project and further improve its side wall casting construction efficiency.

[0059] In some examples, the specific process of executing the above method step of "forming corresponding second side wall casting spaces respectively by using two steel formworks and a plurality of triangular support brackets in conjunction with the side walls of the corresponding working well section to be constructed, and pouring concrete in the two second side wall casting spaces to obtain two second side wall sections" is as follows:

[0060] Step S131: According to the design requirements of the construction drawings, a steel formwork is detachably fixedly installed on the top of the side wall section cast in the previous construction project, away from the side wall corresponding to the working well section to be constructed, so as to form a second side wall casting space between each steel formwork and the side wall corresponding to the working well section to be constructed.

[0061] Step S132: According to the design requirements of the construction drawings, at least one triangular support bracket is detachably fixedly installed on the side of each steel formwork away from the side wall corresponding to the working well section to be constructed, and concrete is poured into the corresponding second side wall pouring space through the construction platform provided by all the corresponding triangular support brackets to obtain two second side wall sections.

[0062] It is understandable that if Figure 2As shown, the steps of this method for installing and fixing the steel formwork 11 are similar to the steps of installing and fixing the steel formwork 11 in the first construction project, and will not be repeated here. Similarly, the steps of this method for installing and fixing the triangular support bracket 12 are similar to the steps of installing and fixing the triangular support bracket 12 in the first construction project, and will not be repeated here. There is also a cantilever platform 2121 set above each triangular support bracket 1212, which can also be used as a construction platform for pouring concrete for the corresponding second side wall pouring space 15, that is, construction personnel can also stand on this platform to perform corresponding concrete pouring operations for the corresponding second side wall pouring space 15.

[0063] In this way, through the above method steps, corresponding second side wall casting spaces 15 are formed respectively by two steel formworks 11 and several triangular support brackets 12 in conjunction with the side walls of the corresponding working well section 10 to be constructed, and concrete is poured into the two second side wall casting spaces 15 to obtain two second side wall sections.

[0064] In some examples, such as Figure 3 As shown, during the process of pouring concrete in each second side wall pouring space 15, at least one fourth connecting member 18 is also pre-embedded, so that the top of each second side wall section that has been poured is provided with at least one fourth connecting member 18 on the side away from the side wall corresponding to the working well section 10 to be constructed. It is understandable that the specific implementation structure of the fourth connecting member 18 mentioned in this example can be similar to or the same as the first connecting member 16. In this way, through the above-mentioned method steps, at least one fourth connecting member 18 can be pre-embedded on the top of each second side wall section that has been poured, so as to better facilitate the installation and fixation of the steel formwork 11 in the subsequent construction project.

[0065] The above description is only a preferred embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made by using the contents of the present application description and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A construction method for pouring side walls of the main engineering section of an open-cut tunnel working section, characterized in that: The construction method comprises the following steps: Determining the side wall pouring height and the number of segmented pouring times of the working well section to be constructed according to the design requirements of the construction drawings, selecting a steel formwork with a first preset height according to the side wall pouring height and the number of segmented pouring times, and dividing the side wall pouring project of the working well section to be constructed into a first construction project and a plurality of second construction projects to be constructed sequentially from bottom to top; During the construction of the first construction project, after the bottom plate and the low side wall are cast in the working well section to be constructed in sequence according to the design requirements of the construction drawings, corresponding first side wall casting spaces are formed respectively by using the two steel formworks and a plurality of triangular support brackets in conjunction with the side walls of the corresponding working well section to be constructed, and concrete is poured in the two first side wall casting spaces to obtain two first side wall sections; When carrying out each of the second construction projects, after setting up the corresponding height of the disc-type full-floor support for the working section to be constructed according to the design requirements of the construction drawings, the two steel formworks and several triangular support brackets are used to cooperate with the side walls of the corresponding working section to be constructed to form corresponding second side wall casting spaces, and concrete is poured in the two second side wall casting spaces to obtain two second side wall sections.

2. The construction method according to claim 1, wherein: The steps of sequentially performing bottom plate pouring and low side wall pouring on the working well section to be constructed according to the design requirements of the construction drawings include: According to the design requirements of the construction drawings, the bottom plate is first cast on the working well section to be constructed, so as to form a bottom plate portion for paving the bottom wall of the working well section to be constructed in the working well section; According to the design requirements of the construction drawings, the low side walls are cast on the working section to be constructed, so as to form two low side walls protruding on both sides of the bottom plate, and each of the low side walls is arranged close to the side wall of the corresponding side of the working section to be constructed.

3. The construction method according to claim 2, wherein: The step of casting the short side walls on the working well section to be constructed so as to form two short side walls protruding on both sides of the bottom plate, and making each short side wall close to the side wall on the corresponding side of the working well section to be constructed comprises: On both sides of the bottom plate, a low side wall with a second preset height is cast close to the side wall corresponding to the side of the working well section to be constructed, and during the casting process of each low side wall, at least one first connecting member is embedded in advance, so that each of the low side walls after casting is provided with at least one first connecting member protruding on the side away from the side wall corresponding to the working well section to be constructed.

4. The construction method according to claim 3, wherein: The steps of forming corresponding first side wall casting spaces by using the two steel formworks and a plurality of triangular support brackets in conjunction with the side walls of the corresponding working well section to be constructed, and pouring concrete in the two first side wall casting spaces to obtain two first side wall sections include: According to the design requirements of the construction drawings, a steel formwork is detachably fixedly installed on a side of each of the short side walls away from the side wall corresponding to the side of the working well section to be constructed, so as to form a first side wall casting space between each of the steel formwork and the side wall corresponding to the side of the working well section to be constructed; According to the design requirements of the construction drawings, at least one triangular support bracket is detachably fixedly arranged on the side of each steel formwork away from the side wall corresponding to the working well section to be constructed, and concrete is poured into the corresponding first side wall pouring space through the construction platform provided by all the corresponding triangular support brackets to obtain two first side wall sections.

5. The construction method according to claim 4, wherein: The steel template is detachably fixed by at least one first connecting member.

6. The construction method according to claim 4, wherein: The triangular support bracket is detachably fixed to the corresponding steel template through a plurality of second connecting pieces, and the bottom side of the triangular support bracket is also detachably fixed to the bottom plate portion through a plurality of I-beam connecting pieces.

7. The construction method according to claim 4, wherein: During the process of pouring concrete in each of the first side wall pouring spaces, at least one third connecting member is also pre-embedded, so that the top of each of the first side wall sections that has been poured is protruded with at least one of the third connecting members on the side away from the side wall corresponding to the working well section to be constructed.

8. The construction method according to claim 2, wherein: The step of erecting a disc-type full-height support of a corresponding height for the working well section to be constructed according to the design requirements of the construction drawings includes: A disc-type full-floor support is erected from bottom to top above the base plate until the top side of the erected disc-type full-floor support is flush with the top side of the side wall section cast in the previous construction project, and then a flat support structure is laid on the top side of the erected disc-type full-floor support.

9. The construction method according to claim 8, wherein: The steps of forming corresponding second side wall casting spaces by using the two steel formworks and the plurality of triangular support brackets in conjunction with the side walls of the corresponding working well section to be constructed, and pouring concrete in the two second side wall casting spaces to obtain two second side wall sections include: According to the design requirements of the construction drawings, a steel formwork is detachably fixedly installed on the top of the side wall section cast in the previous construction project, away from the side wall corresponding to the side of the working well section to be constructed, so as to form a second side wall casting space between each steel formwork and the side wall corresponding to the side of the working well section to be constructed; According to the design requirements of the construction drawings, at least one triangular support bracket is detachably fixedly arranged on the side of each steel formwork away from the side wall corresponding to the working well section to be constructed, and concrete is poured into the corresponding second side wall pouring space through the construction platform provided by all the corresponding triangular support brackets to obtain two second side wall sections.

10. The construction method according to claim 9, characterized in that: During the process of pouring concrete in each second side wall pouring space, at least one fourth connecting member is also embedded in advance, so that the top of each second side wall section that has been poured is protruded with at least one fourth connecting member on the side away from the side wall corresponding to the working well section to be constructed.

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