Construction method of partition wall force transfer structure in construction process of basement roof between adjacent foundation pits

Abstract

The invention provides a construction method of a mid-partition force transfer structure in the construction process of basement roofs between adjacent foundation pits, which comprises the following steps: constructing an enclosure structure and a mid-partition, and reserving vertical steel bars at the top of the mid-partition; first concrete supports in the two adjacent small foundation pits are constructed, and the excavation sequence is determined; firstly, foundation pit earth excavation is conducted, and a plurality of concrete supports are constructed; a first basement structure in a foundation pit is excavated firstly and is recycled, and a first first-layer plate structure is connected with vertical steel bars and is poured to form a mid-partition force transmission structure; carrying out earth excavation on the post-excavation foundation pit, constructing a plurality of concrete supports, and rebuilding a second basement structure; the first concrete support is dismantled when returning to an underground first-layer plate structure, and the middle partition wall force transmission structure is dismantled when returning to a second first-layer plate structure; the first first-layer plate structure and the second first-layer plate structure are connected to form a basement top plate; and removing the mid-partition to the bottom plate. The invention relates to the technical field of constructional engineering and can solve the problem that in the prior art, a foundation pit basement top plate on the side is excavated firstly, and consequently a plate structure deforms.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and in particular to a method for constructing a partition wall force transmission structure during the construction of basement roofs between adjacent foundation pits. Background Art

[0002] During the construction of deep foundation pits with large spans, it is common to use the method of setting up partition walls to divide the extra-large foundation pit into two adjacent foundation pits with reinforced concrete partition walls. The two adjacent foundation pits are then constructed in phases according to a certain order based on usage requirements. Generally, when constructing two adjacent foundation pits, it is necessary to wait until the basement structure of the foundation pit on the first excavation side is completed before excavating the foundation pit on the other side. However, it is inevitable that the basement roof construction of the foundation pit on the first excavation side is completed first, while the foundation pit on the second excavation side has not yet been constructed. At this time, it is still necessary to wait for the foundation pit on the second excavation side to be excavated to the bottom plate and the basement structure to be completed. Only after the basement roof structure of the foundation pit on the second excavation side is completed can it be connected to the basement roof of the first excavation side.

[0003] However, it takes a long time to wait for the roof structure of the basement pit on the later excavation side to be completed. During this process, the basement roof of the basement pit on the first excavation side is in a suspended state. At this time, the plate structure (floor) on the first construction side is subjected to its own gravity and upper load at the same time, which will inevitably cause the plate structure to deform and affect the structural safety. Therefore, it is necessary to provide a construction method for the partition wall force transmission structure during the construction of the basement roof between adjacent foundation pits, which can solve the problem of the basement roof of the first excavation side being suspended in the air in the existing technology, causing the plate structure to deform. Summary of the Invention

[0004] The purpose of the present invention is to provide a construction method for a partition wall force transmission structure during the construction of a basement roof between adjacent foundation pits, which can solve the problem in the prior art that the basement roof of the first excavated side pit is suspended in the air, causing the plate structure to deform.

[0005] In order to achieve the above object, the technical solution of the present invention is:

[0006] A method for constructing a partition wall force transmission structure during the construction of basement roofs between adjacent foundation pits comprises the following steps:

[0007] Step 1: Construct the retaining structure and the middle partition wall of the foundation pit. The middle partition wall divides the foundation pit into two small foundation pits, and reserve vertical steel bars on the ring beam at the top of the middle partition wall at the intersection with the small foundation pits;

[0008] Step 2: Construct the first concrete support in two adjacent small foundation pits and determine the excavation order of the two small foundation pits. The small foundation pit excavated first is hereinafter referred to as the first excavation pit, and the small foundation pit excavated later is hereinafter referred to as the later excavation pit;

[0009] Step 3: Excavate the foundation pit first, and construct several concrete supports along the way;

[0010] Step 4: Perform back-work on the first basement structure in the excavated foundation pit. During the back-work on the first ground floor slab structure of the first basement structure, connect the first ground floor slab structure with the vertical reinforcement reserved on the middle partition wall, and cast to form the middle partition wall force transmission structure;

[0011] Step 5: Excavate the foundation pit and carry out layered excavation of earthwork, and then excavate several concrete supports in the foundation pit, and then excavate the second basement structure in the foundation pit;

[0012] Step 6: When the second basement structure is rebuilt to the underground first floor slab structure, remove the first concrete support. When the second basement structure is rebuilt to the second first floor slab structure, remove the middle partition wall force transmission structure.

[0013] Step 7: Complete the back-work of the second basement structure, connect the first floor slab structure and the second floor slab structure to form the basement roof;

[0014] Step 8: Remove the middle partition wall in sections until the bottom plate, and connect the bottom plates of the first basement structure and the second basement structure and the plate structures of each floor to form a basement structure.

[0015] In the step 1, the depth of the vertical steel bars anchored in the ring beam is not less than 10 times the diameter of the vertical steel bars, and the diameter of the vertical steel bars is 25 mm; two vertical steel bars are provided, and the steel bar spacing of each vertical steel bar is 200 mm; each steel bar of each vertical steel bar is connected into a whole by a transverse steel bar, and multiple transverse steel bars are arranged at intervals along the vertical direction.

[0016] In the step 1, the area of ​​each small foundation pit does not exceed 10,000 m2.

[0017] In the step 4, a gap is left between the suspended end of the first floor slab structure and the vertical steel bars, and the middle partition wall force transmission structure is connected at the gap to form a middle partition wall force transmission structure with a trapezoidal structure with a narrow upper and lower cross-section, connecting the first floor slab structure and the ring beam of the middle partition wall into a whole.

[0018] The thickness of the middle partition wall force transmission structure is 0.5m, the width is 2m, and the length is 1.5m; the connection length between the middle partition wall force transmission structure and the ring beam is 500mm, and the gap between the suspended end of the first floor plate structure and the ring beam is 1000mm; several middle partition wall force transmission structures are arranged at intervals along the wall direction of the middle partition wall, and the net distance between the middle partition wall force transmission structures is 2m.

[0019] The force transmission structure of the middle partition wall is a reinforced concrete structure. The steel bars in the force transmission structure of the middle partition wall are tied and fixed with the steel bars and vertical steel bars in the first floor slab structure. The steel bars in the force transmission structure of the middle partition wall are arranged at a spacing of 200mm and a diameter of 8mm.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, vertical steel bars are reserved on the ring beam of the middle partition wall. The steel bars of the force-transmitting structure of the middle partition wall connect the vertical steel bars and the steel bars in the first first-floor slab structure of the first basement structure in the first excavated foundation pit. The force-transmitting structure of the middle partition wall connects the suspended end of the first first-floor slab structure with the middle partition wall into a whole. Without affecting the construction of the adjacent small foundation pit, the first-floor load of the first excavated foundation pit is transmitted downward to the bottom plate through the middle partition wall, so that the slab structure can meet the bearing requirements, thereby solving the problem that one end of the first first-floor slab structure of the first excavated foundation pit is suspended and bears excessive load, and ensuring the safety and stability of the beam-slab structure of the first basement structure in the first excavated foundation pit.

[0022] 2. The present invention divides the foundation pit into the first excavation pit and the later excavation pit by the middle partition wall. Under the premise of ensuring construction safety, a situation is formed in which small foundation pits on both sides of the middle partition wall are constructed successively, so that the on-site traffic is organized in an orderly manner and there is no overlap of work processes, which can significantly improve construction efficiency and on-site green construction effects.

[0023] 3. The invention is easy to operate and construct, can save construction costs, speed up construction progress, shorten construction period, is easy to popularize on a large scale, and has high applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other objects, features and advantages of the present disclosure will become more apparent through a more detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present disclosure.

[0025] Figure 1 This is a construction diagram of step 1 in the construction method of the partition wall force transmission structure during the construction of the basement roof between adjacent foundation pits of the present invention;

[0026] Figure 2 This is a schematic diagram of the reservation of vertical steel bars in the construction method of the partition wall force transmission structure during the construction of the basement roof between adjacent foundation pits of the present invention;

[0027] Figure 3 This is a construction diagram of step 2 of the construction method of the partition wall force transmission structure during the construction of the basement roof between adjacent foundation pits of the present invention;

[0028] Figure 4 This is a construction diagram of step three in the construction method of the partition wall force transmission structure during the construction of the basement roof between adjacent foundation pits of the present invention (construction of the first concrete support);

[0029] Figure 5This is a construction diagram of step three in the construction method of the partition wall force transmission structure during the construction of the basement roof between adjacent foundation pits of the present invention (construction of several concrete supports);

[0030] Figure 6 This is a construction diagram of step 4 of the construction method of the partition wall force transmission structure during the construction of the basement roof between adjacent foundation pits of the present invention;

[0031] Figure 7 It is a cross-sectional view of the partition wall force transmission structure in the construction method of the partition wall force transmission structure during the construction of the basement roof between adjacent foundation pits of the present invention;

[0032] Figure 8 This is a construction diagram of step five in the construction method of the partition wall force transmission structure during the construction of the basement roof between adjacent foundation pits of the present invention;

[0033] Figure 9 This is a construction diagram of step seven in the construction method of the partition wall force transmission structure during the construction of the basement roof between adjacent foundation pits of the present invention;

[0034] Figure 10 This is a construction diagram of step eight in the construction method of the partition wall force transmission structure during the construction of the basement roof between adjacent foundation pits of the present invention;

[0035] Figure 11 This is a construction flow chart of the bottom plate in the construction method of the partition wall force transmission structure during the construction of the basement top plate between adjacent foundation pits of the present invention;

[0036] Figure 12 This is a flow chart of the construction of walls and columns in the construction method of the partition wall force transmission structure during the construction of the basement roof between adjacent foundation pits of the present invention;

[0037] Figure 13 This is a construction flow chart of beams and slabs in a construction method of a partition wall force transmission structure during the construction of basement roofs between adjacent foundation pits of the present invention;

[0038] Figure 14 This is a flow chart of the first concrete support and the removal of the concrete support in the construction method of the partition wall force transmission structure during the construction of the basement roof between adjacent foundation pits of the present invention.

[0039] In the figure, 1 is the retaining structure, 2 is the middle partition wall, 21 is the ring beam, 22 is the vertical reinforcement, 23 is the transverse reinforcement, 3 is the small foundation pit, 4 is the first concrete support, 5 is the concrete support, 6 is the first basement structure, 61 is the first floor slab structure, 7 is the middle partition wall force transmission structure, 71 is the reinforcement, 8 is the second basement structure, 81 is the second floor slab structure, 9 is the bottom plate, and 10 is the plate structure. DETAILED DESCRIPTION

[0040] The following, combined with the accompanying drawings and specific embodiments, further details the construction method of the partition wall force transmission structure during the construction of the basement roof between adjacent foundation pits, as proposed by the present invention. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the accompanying drawings are highly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0041] A method for constructing a partition wall force transmission structure during the construction of basement roofs between adjacent foundation pits comprises the following steps:

[0042] Step 1: Construct the retaining structure 1 and the middle partition wall 2 of the foundation pit. The middle partition wall 2 divides the foundation pit into two small foundation pits 3, as shown in the attached figure. Figure 1 As shown, vertical steel bars 22 are reserved on the ring beam 21 at the top of the middle partition wall 2 at the intersection with the small foundation pit 3, as shown in the attached Figure 2 shown.

[0043] Please see the attached Figure 7 Preferably, in the step one, the depth of the vertical steel bar 22 anchored in the ring beam 21 is not less than 10 times the diameter of the vertical steel bar 22, and the diameter of the vertical steel bar 22 is 25 mm; two vertical steel bars 22 are provided, and the steel bar arrangement spacing of each vertical steel bar 22 is 200 mm; each steel bar of each vertical steel bar 22 is connected into a whole by a transverse steel bar 23, and multiple transverse steel bars 23 are arranged at intervals along the vertical direction.

[0044] In the step 1, the area of ​​each small foundation pit 3 does not exceed 10,000 m2.

[0045] Step 2: Construct the first concrete support 4 in two adjacent small foundation pits 3, and determine the excavation order of the two small foundation pits 3, as shown in the attached figure. Figure 3 The small foundation pit excavated first is hereinafter referred to as the first excavation foundation pit, and the small foundation pit excavated later is hereinafter referred to as the later excavation foundation pit.

[0046] Step 3: Excavate the foundation pit first, as shown in the following Figure 4 As shown, several concrete supports 5 are constructed along with the earthwork excavation, as shown in the attached Figure 5 shown.

[0047] Step 4: Carry out the back-work of the first basement structure 6 in the excavated foundation pit, as shown in the attached Figure 6 As shown, during the restoration process of the first first floor slab structure 61 of the first basement structure 6, the first first floor slab structure 61 is connected to the vertical steel bars 22 reserved on the middle partition wall 2, and cast to form the middle partition wall force transmission structure 7, as shown in the attached figure. Figure 6 and attached Figure 7 shown.

[0048] Please see the attached Figure 7In the step 4, a gap is left between the suspended end of the first first-floor slab structure 61 and the vertical steel bar 22, and the middle partition wall force transmission structure 7 is connected at the gap to form a middle partition wall force transmission structure 7 with a trapezoidal structure with a cross-section that is wide at the top and narrow at the bottom, connecting the first first-floor slab structure 61 and the ring beam 21 of the middle partition wall 2 into a whole.

[0049] Please see the attached Figure 7 Preferably, the thickness of the middle partition wall force transmission structure 7 is 0.5m, the width is 2m, and the length is 1.5m; the connection length between the middle partition wall force transmission structure 7 and the ring beam 21 is 500mm, and the gap between the suspended end of the first first-floor plate structure 61 and the ring beam 21 is 1000mm; several middle partition wall force transmission structures 7 are arranged at intervals along the wall direction of the middle partition wall 2, and the net distance between the middle partition wall force transmission structures 7 is 2m.

[0050] Please see the attached Figure 7 The middle partition wall force transmission structure 7 is a reinforced concrete structure. The steel bars 71 in the middle partition wall force transmission structure 7 are tied and fixed with the steel bars and vertical steel bars 22 in the first floor plate structure 61; the steel bars 71 in the middle partition wall force transmission structure 7 are arranged with a spacing of 200 mm and a diameter of 8 mm.

[0051] As the first basement structure 6 is restored, several concrete supports 5 in the first excavated foundation pit are removed in sequence.

[0052] Step 5: Excavate the foundation pit and carry out layered excavation of earthwork, and then excavate the foundation pit and construct several concrete supports 5, as shown in the attached Figure 8 As shown, the second basement structure 8 is excavated in the foundation pit after back-work.

[0053] During excavation of both the initial and subsequent foundation pits, the initial concrete support layer of the entire foundation pit is constructed. A rational and efficient excavation method is established during the excavation process: Excavation of the foundation pit is carried out in strict accordance with the design sequence and in sections, adhering to the principles of "layered and block-by-layer excavation, retaining soil to protect the wall, time-limited symmetry, and timely support" to minimize impact on the surrounding environment. A basin-type excavation method is used to excavate the earth faster and reduce the time the ground and walls are exposed without support.

[0054] Step 6: When the second basement structure 8 is rebuilt to the underground first floor slab structure, the first concrete support 4 is removed. When the second basement structure 8 is rebuilt to the second first floor slab structure 81, the middle partition wall force transmission structure 7 is removed.

[0055] As the second basement structure 8 is being rebuilt, several concrete supports 5 in the excavated foundation pit are removed in sequence.

[0056] Step 7: Complete the second basement structure 8 and connect the first floor plate structure 61 and the second floor plate structure 62 to form the basement roof, as shown in the attached figure. Figure 9 shown.

[0057] Step 8: Remove the middle partition wall 2 in sections until the bottom plate, and connect the bottom plates 9 of the first basement structure 6 and the second basement structure 8 and the plate structures 10 of each floor to form a basement structure, as shown in the attached figure. Figure 10 shown.

[0058] If the area of ​​the foundation pit is large, the foundation pit can be divided into multiple small foundation pits 3 by setting up multiple middle partition walls 2. The construction of each two adjacent small foundation pits 3 is carried out using the above method, which will not be repeated here.

[0059] During the construction process, foundation pit monitoring should be strengthened and information technology should be used to guide construction: During the construction period, we will work closely with the third-party monitoring unit entrusted by the owner, focusing on monitoring data such as support axial force, deformation of the retaining structure 1, changes in pressure head, settlement and displacement of underground pipelines, so as to achieve information-based guidance of construction.

[0060] The restoration of the first and second basement structures 6, 8 includes the base slab 9, the slab structures 10 of each floor (such as a three-story underground slab structure or a two-story underground slab structure, which can be determined based on the number of floors in the basement structure), and the first floor structural slab structure (i.e., the first and second first floor slab structures 61, 81). As the restoration of the first and second basement structures 6, 8 is completed, the concrete supports 5 at the construction height are removed to prevent them from interfering with the construction of the first and second basement structures 6, 8.

[0061] The construction of base slab 9 must strictly follow the sequence of excavation and completion and subsequent basement structure construction, particularly the construction sequence for the entire site to reach ±0.00. While ensuring construction conditions, the tower base slab should be constructed first, followed by the podium base slab. The large base slab will be poured in sections, using the proven technique of pouring from the center to the surrounding areas. Each section will be poured in layers, with sufficient construction personnel ensuring each layer is vibrated to ensure it is in place.

[0062] The construction process of the base plate 9 mainly includes: completion of the preliminary works (including engineering pile driving, foundation pit retaining structure 1, foundation pit excavation) → pile foundation treatment, pile foundation measurement → line setting → pile position verification and acceptance → binding of lower reinforcement → lower reinforcement acceptance → upper reinforcement support and steel column → binding of upper reinforcement → base plate side formwork → setting of wall and column dowel bar base support → binding of wall and column dowel bar → elevator shaft formwork and arrangement of temperature measurement points → acceptance of concealed works → preparation before concrete pouring → concrete pouring → curing, as shown in the attached figure. Figure 11 The bottom plate 9 can be constructed using conventional construction techniques in the art, which will not be described in detail here.

[0063] The construction process of the backfill of the middle wall and column of the first basement structure 6 and the second basement structure 8 mainly includes: cleaning the inside of the formwork → sprinkling water to moisten → pouring 5cm thick mortar → pouring concrete → vibrating concrete → removing the formwork → curing concrete, as shown in the attached Figure 12 The wall and column concrete construction is a conventional construction process in this field and will not be described in detail here.

[0064] The concrete construction process of the first basement structure 6 and the second basement structure 8 for the center beam and slab mainly includes: cleaning the inside of the formwork → sprinkling water to moisten → pouring concrete → vibrating concrete → removing the formwork → curing concrete, as shown in the attached Figure 13 The concrete construction of beams and slabs is a conventional construction process in this field and will not be described in detail here.

[0065] The first concrete support 4 and each concrete support 5 are dismantled using a chain saw cutting construction process. The process mainly includes: drawing review and work briefing → measurement and positioning to place cutting lines → making steel stirrups and setting safety ropes → connecting water and electricity → placing steel stirrups → using jackhammers to remove part of the concrete to expose the main reinforcement → drilling holes for the purlins (for threading saw ropes or reserved before purlin casting) → using an air compressor to break the upper corner concrete cutting of the purlin (chain saw cutting to bevel and inverted eight-shaped mouth) → forklift to hold the support tightly → gas cutting of the purlin oblique reinforcement → forklift transportation → lifting and loading to the external yard of a professional unit → cleaning and transporting the on-site construction waste → construction completion, as shown in the attached Figure 14 shown.

[0066] (1) When measuring and locating the cutting line, the cutting block line planned in the construction organization design should be strictly followed, and the support cutting line should be accurately marked to ensure the safe progress of the cutting and hoisting construction. Before construction, the cutting construction site should be cleaned to ensure the smooth progress of the cutting construction.

[0067] (2) Before pouring concrete, embed a PVC pipe with a diameter of φ25 (if the PVC pipe cannot be embedded on site, a hole with a diameter of φ25 can be drilled on the purlin (near the ground wall) using a pneumatic breaker on site) to allow the safety rope to be passed through.

[0068] (3) When cutting the first concrete support 4 and concrete support 5, the on-site technicians will first mark the lines and then connect the water and electricity for cutting. Use a chain saw to cut from bottom to top and from inside to outside.

[0069] (4) A forklift is inserted into the bottom of the beam, and the cut concrete block is lifted upwards. After the inclined reinforcement is cut with an air cutter, the concrete block is transported to the lifting position by forklift, and then hoisted and loaded onto a truck for transportation.

[0070] (5) When dismantling the purlin, due to the strong suction between the purlin and the ground-connected wall, a pickaxe machine is used in conjunction with a forklift to ensure the safe separation of the purlin and the ground-connected wall. The concrete blocks are forklifted to the lifting position and then hoisted and loaded onto trucks for transportation.

[0071] (6) Fork out the cut concrete blocks and transport them to the designated lifting location.

[0072] (7) Lifting and loading onto trucks for transportation; clearing and piling up construction waste on site, loading onto trucks for transportation.

[0073] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A method for constructing a partition wall force transmission structure during the construction of basement roofs between adjacent foundation pits, characterized in that: The following steps are involved: Step 1: construct the retaining structure (1) and the middle partition wall (2) of the foundation pit, wherein the middle partition wall (2) divides the foundation pit into two small foundation pits (3), and reserve vertical steel bars (22) on the ring beam (21) at the top of the middle partition wall (2) at the intersection with the small foundation pits (3); Step 2: construct the first concrete support (4) in two adjacent small foundation pits (3), and determine the order of excavation of the two small foundation pits (3). The small foundation pit excavated first is hereinafter referred to as the first excavation pit, and the small foundation pit excavated later is hereinafter referred to as the later excavation pit; Step 3: Excavate the foundation pit first and construct several concrete supports (5) along with the excavation. Step 4: Performing back-making of the first basement structure (6) in the excavated foundation pit. During the back-making process of the first first floor slab structure (61) of the first basement structure (6), the first first floor slab structure (61) is connected to the vertical steel bars (22) reserved on the middle partition wall (2), and cast to form the middle partition wall force transmission structure (7); Step 5: Excavate the foundation pit and carry out layered excavation of earthwork, and then excavate several concrete supports (5) in the foundation pit, and then excavate the second basement structure (8) in the foundation pit; Step 6: When the second basement structure (8) is rebuilt to the first underground floor slab structure, the first concrete support (4) is removed. When the second basement structure (8) is rebuilt to the second first floor slab structure (81), the middle partition wall force transmission structure (7) is removed. Step 7: Complete the back-work of the second basement structure (8), connect the first ground floor structure (61) and the second ground floor structure (62) to form the basement roof; Step 8: Remove the middle partition wall (2) in sections until the bottom plate, and connect the bottom plates (9) of the first basement structure (6) and the second basement structure (8) and the plate structures (10) of each floor to form a basement structure.

2. The construction method of the partition wall force transmission structure during the construction of the basement roof between adjacent foundation pits as claimed in claim 1, characterized in that: In the step 1, the depth of the vertical steel bar (22) anchored into the ring beam (21) is not less than 10 times the diameter of the vertical steel bar (22), and the diameter of the vertical steel bar (22) is 25 mm; two vertical steel bars (22) are provided, and the steel bar arrangement spacing of each vertical steel bar (22) is 200 mm; each steel bar of each vertical steel bar (22) is connected into a whole by a transverse steel bar (23), and a plurality of transverse steel bars (23) are arranged at intervals along the vertical direction.

3. The construction method of the partition wall force transmission structure during the construction of the basement roof between adjacent foundation pits as claimed in claim 1, characterized in that: In the step 1, the area of ​​each small foundation pit (3) does not exceed 10,000 m2.

4. The method for constructing a partition wall force transmission structure during the construction of basement roofs between adjacent foundation pits according to claim 1, characterized in that: In the step 4, a gap is left between the suspended end of the first first-floor plate structure (61) and the vertical steel bar (22), and the middle partition wall force transmission structure (7) is connected at the gap to form a middle partition wall force transmission structure (7) with a trapezoidal structure with a cross section that is wide at the top and narrow at the bottom, connecting the first first-floor plate structure (61) and the ring beam (21) of the middle partition wall (2) into a whole.

5. The construction method of the partition wall force transmission structure during the construction of the basement roof between adjacent foundation pits as claimed in claim 4, characterized in that: The thickness of the middle partition wall force transmission structure (7) is 0.5m, the width is 2m, and the length is 1.5m; the connection length between the middle partition wall force transmission structure (7) and the ring beam (21) is 500mm, and the gap between the suspended end of the first floor plate structure (61) and the ring beam (21) is 1000mm; a plurality of middle partition wall force transmission structures (7) are arranged at intervals along the wall direction of the middle partition wall (2), and the net distance between the middle partition wall force transmission structures (7) is 2m.

6. The method for constructing a partition wall force transmission structure during the construction of basement roofs between adjacent foundation pits according to claim 4 or 5, characterized in that: The middle partition wall force transmission structure (7) is a reinforced concrete structure. The steel bars (71) in the middle partition wall force transmission structure (7) are tied and fixed with the steel bars and vertical steel bars (22) in the first floor plate structure (61). The steel bars (71) in the middle partition wall force transmission structure (7) are arranged with a spacing of 200 mm and a diameter of 8 mm.

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