A foundation pit support structure

Abstract

The application discloses a foundation pit supporting structure, relates to the technical field of foundation pit supporting, and comprises a supporting assembly and a reinforcing assembly. The supporting assembly comprises a plurality of base units and a plurality of supporting units. The base units are in abutment with the pit wall on one side of the foundation pit and the pit wall at the bottom. The plurality of supporting units are connected with the plurality of base units, the plurality of supporting units are connected with each other, and the supporting units are in abutment with the pit wall on one side of the foundation pit. The reinforcing assembly comprises a plurality of fixing seats and a plurality of reinforcing pieces. The fixing seats are connected with the foundation on one side of the foundation pit, and the plurality of supporting units are connected with the fixing seats. The reinforcing pieces are located on one side of the supporting assembly, one end of the reinforcing pieces is connected with the fixing seats, and the other end of the reinforcing pieces is connected with the base units. The application can improve the structural strength of the foundation pit supporting structure as a whole and facilitate subsequent construction of construction personnel in the foundation pit.

Description

Technical Field

[0001] This application relates to the technical field of foundation pit support, and in particular to a foundation pit support structure. Background Technology

[0002] Foundation pit support refers to the measures taken to support, reinforce, and protect the sidewalls and surrounding environment of the foundation pit in order to ensure the safety of underground structure construction and the surrounding environment.

[0003] With the development of construction technology and construction needs, the number of floors in buildings is increasing, and their height is also gradually increasing, which means that the depth of the foundation pit required for buildings is also gradually increasing. After the foundation pit is excavated, a support structure is required around it to prevent local or large-scale collapse.

[0004] Existing foundation pit support structures support the pit walls around the foundation pit in the form of wall structures. The bottom of the foundation pit support structure is fixedly connected to the pit wall at the bottom of the foundation pit. In some cases, in order to improve the positional stability of the foundation pit support structure relative to the foundation pit, the top of the foundation pit support structure is fixedly connected to the foundation around the foundation pit through a reinforcement structure.

[0005] However, existing foundation pit support structures, for ease of construction, typically have a single, integrally formed wall structure. For foundation pits with increased depth, the span of the wall structure is large, and relying solely on the bottom and its fixation relative to the pit is insufficient to meet the support requirements. Due to the large vertical span of the foundation pit support structure, the area near its middle is the weakest point in terms of structural stability, easily deformed inward by the forces of the foundation, thus affecting the support effect of the foundation pit support structure.

[0006] Furthermore, after the foundation pit support structure is completed, it is directly exposed to the outside, making it susceptible to external forces originating from inside the foundation pit, which can affect the support effect of the foundation pit support structure. Therefore, construction workers need to pay extra attention when carrying out other construction work in the foundation pit to reduce the probability of bumping into the foundation pit support structure during construction, which would cause inconvenience to subsequent construction. Summary of the Invention

[0007] This application provides a foundation pit support structure that can improve the overall structural strength of the foundation pit support structure and facilitate subsequent construction work by construction personnel inside the foundation pit.

[0008] This application provides a foundation pit support structure, which adopts the following technical solution:

[0009] A foundation pit support structure includes a support component and a reinforcement component, wherein the support component is disposed in the foundation pit and the reinforcement component is disposed on the foundation surrounding the foundation pit;

[0010] The support assembly includes several base units and several support units. The base units are fixedly connected to the pit wall at the bottom of the pit, and the base units are in contact with and abut against the pit wall on one side and the pit wall at the bottom of the pit. Several support units are connected to several base units, and several support units are interconnected. The support units abut against the pit wall on one side of the pit, and several base units and several support units cover the pit walls around the perimeter of the pit.

[0011] The reinforcement assembly includes several fixed seats and several reinforcing members. The fixed seats are connected to the foundation on one side of the pit, and several support units near the fixed seats are connected to the fixed seats. The reinforcing members are located on one side of the support assembly, with one end of the reinforcing member connected to the fixed seat and the other end of the reinforcing member connected to the base unit.

[0012] By adopting the above technical solution, the wall structure of the foundation pit support structure is composed of several support units. Each support unit has a certain structural strength with its adjacent units, thereby improving the structural strength of the wall structure near its center when the span is large. Furthermore, the reinforcing components not only reinforce the top of the support components but also the bottom, thus increasing the overall structural strength of the support components and consequently the overall structural strength of the foundation pit support structure. After the foundation pit support structure is constructed, the reinforcing components can protect the support components from rain, reducing the impact of direct contact between rainwater and the support components. Moreover, the reinforcing components located on the side of the support components closest to the pit interior can protect the support components, effectively preventing construction personnel from applying external forces to the support components during subsequent construction, thereby reducing the probability that the foundation pit support structure's support effect on the foundation pit will be affected, and ultimately enabling the foundation pit support structure to provide stable support for the foundation pit.

[0013] Optionally, the support unit includes a support plate, several movable parts, and an adjusting part. The several movable parts are disposed at the edge of the support plate and are slidably connected to the support plate. The edge of the support plate is also provided with several insertion slots for the movable parts to be inserted and engaged.

[0014] The adjusting member is threadedly engaged with the support plate, and the rotation axis of the adjusting member during the threaded engagement is perpendicular to the sliding direction of the movable member; one end of the adjusting member is located inside the support plate and abuts against several movable members, and the other end of the adjusting member is located on one side of the support plate; the rotation of the adjusting member drives the several movable members to slide, and the movable members slide into the corresponding insertion slots on the adjacent support plates.

[0015] By adopting the above technical solution, after the support plate is aligned and abutted against other adjacent support plates, the rotation of the adjusting component can drive several movable parts to slide outward into the corresponding insertion slots on the corresponding support plates, thereby connecting the support plate with other adjacent support plates. This allows several support plates to be connected to each other to form a wall structure. The adjusting component can simultaneously control the sliding of several movable parts, which can both reduce the construction difficulty of the support components and improve the construction efficiency of the support components.

[0016] Optionally, the reinforcement member is provided with a plurality of clearance holes for the end of the adjustment member away from the support plate to pass through;

[0017] It also includes several locking components, each corresponding to one of the several adjusting components. The locking component is connected to the end of the adjusting component away from the support plate, and the locking component is positioned against the reinforcing component on the side of the reinforcing component away from the support assembly.

[0018] By adopting the above technical solution, after the construction of the foundation pit support structure is completed, several support units will be connected to the reinforcement components through several locking parts, so that the reinforcement components can uniformly reinforce the wall structure formed by several support units, thereby further improving the overall structural strength of the foundation pit support structure. In addition, the end of the adjusting part away from the support plate has a clearance hole, which can facilitate the construction personnel to check and adjust the adjusting parts and locking parts on a daily basis after the foundation pit support structure is completed. Adjusting the locking parts can maintain a certain connection strength between the support unit and the reinforcement components, and adjusting the adjusting parts can keep several moving parts in contact with the corresponding insertion slots, thereby improving the stability of the foundation pit support structure during use.

[0019] Optionally, the locking member is threadedly engaged with the end of the adjusting member away from the support plate, and the direction of the threaded engagement between the locking member and the adjusting member is consistent with the direction of the threaded engagement between the adjusting member and the support plate.

[0020] By adopting the above technical solution, after the locking part is tightened relative to the adjusting part to make it abut against the reinforcement, the adjustment of maintaining a certain connection strength between the support unit and the reinforcement is completed. Then, continuing to rotate the locking part will drive the adjusting part to tighten relative to the support plate, thereby adjusting the movable part to maintain the corresponding insertion slot for adjustment, which makes the daily adjustment process of the two more convenient for construction personnel.

[0021] Optionally, the support unit further includes a plurality of snap-fit ​​components, which are rotatably connected to the ends of the plurality of movable components away from the adjusting component, and the rotation axis of the snap-fit ​​components is parallel to the rotation axis of the adjusting component.

[0022] The support plate has several snap-fit ​​grooves inside that are adapted to the snap-fit ​​parts. The snap-fit ​​grooves correspond one-to-one with the plug-in grooves. The snap-fit ​​grooves are connected to the plug-in grooves, and the opening of the snap-fit ​​groove is located at a position away from the opening of the plug-in groove.

[0023] By adopting the above technical solution, after the control adjustment component drives several movable parts to slide and engage with the corresponding insertion slots, the snap-fit ​​component can be restricted by the slot wall and rotate into the corresponding snap-fit ​​slot, thereby further improving the connection strength between adjacent support units, and further improving the structural strength of the wall structure formed by several support units.

[0024] Optionally, the support unit further includes a plurality of first elastic elements, each corresponding to one of the plurality of snap-fit ​​elements; the first elastic elements are disposed at the rotational connection position between the snap-fit ​​element and the movable element, and the first elastic elements drive the snap-fit ​​element to rotate to a state parallel to the sliding direction of the movable element.

[0025] The support unit has a guide portion on the groove wall of each of the several insertion slots away from the opening. After the snap-fit ​​member abuts against the guide portion, the guide portion guides the snap-fit ​​member to rotate into the snap-fit ​​slot.

[0026] By adopting the above technical solution, when the locking member is not subjected to other external forces, the first elastic member will keep it parallel to the sliding direction of the movable member; when the movable member slides into the insertion slot until the locking member abuts against the guide, during the continued sliding of the movable member, the guide will guide the locking member to rotate into the locking slot, thereby facilitating the locking member and the locking slot to engage, reducing the probability that the locking member cannot enter the locking slot and the movable member will get stuck; when the movable member needs to slide out of the insertion slot, during the sliding of the movable member, the guide and the first elastic member will work together to help the locking member leave the locking slot, thereby reducing the probability that the locking member will get stuck in the locking slot and the movable member will be unable to slide out of the insertion slot.

[0027] Optionally, the support unit further includes a plurality of cover plates, each of which corresponds one-to-one with the plurality of movable parts; the cover plates are rotatably connected to the support plate, and the rotation of the cover plates controls the opening and closing of the openings of the movable parts in and out of the support plate.

[0028] The support plate is also provided with a number of positioning grooves that communicate with the insertion groove. The positioning grooves are adapted to the cover plate. After the cover plate is rotated open and enters the positioning groove on the other support plate, the two support plates are fitted together and abut against each other, and the adjacent movable parts are aligned with the insertion groove on the other support plate along their own sliding direction.

[0029] By adopting the above technical solution, when the support unit is not used in the construction pit support structure, rotating the cover plate closes the opening for the sliding of the movable parts, which can protect the movable parts and reduce the entry of impurities, thereby reducing the probability of impurities affecting the sliding of the movable parts. After the cover plate rotates to open the opening for the sliding of the movable parts, the cover plate and the positioning groove can be inserted and matched to initially position the two support plates. This facilitates the subsequent control and adjustment of the movable parts to slide and be inserted and matched with the corresponding insertion grooves, thereby further reducing the construction difficulty of the support components and improving the construction efficiency of the support components.

[0030] Optionally, the support unit further includes a plurality of second elastic elements, which drive a plurality of the movable elements to slide toward the adjusting element.

[0031] By adopting the above technical solution, during the process of controlling the adjustment component to rotate out, the second elastic component will drive the movable component to keep against the adjustment component, thereby enabling the construction personnel to control the movable component to slide inward through the adjustment component, thus making the use of the support unit more convenient and faster.

[0032] Optionally, the reinforcing member is rotatably connected to the fixed base, and the rotation axis of the reinforcing member is horizontal;

[0033] The reinforcement assembly also includes a drive unit for driving the reinforcement member to rotate. The drive unit is disposed on the fixed base, and the operating end of the drive unit is away from the reinforcement member.

[0034] By adopting the above technical solution, construction personnel can control the rotation of the reinforcement component relative to the fixed seat through the drive unit. After the fixed seat is installed, during the construction of the support assembly, by controlling the rotation of the reinforcement component to different angle positions, the reinforcement component can provide shade and rain protection for the construction personnel in the support assembly, thereby facilitating the construction work. After the support assembly is completed, the reinforcement component can be rotated to connect with several base units.

[0035] Optionally, the reinforcement component further includes a limiting member disposed at the end of the reinforcement member away from the fixing base; when the reinforcement member is rotated toward the base unit to a vertical position, the limiting member abuts against the base unit and is detachably connected.

[0036] By adopting the above technical solution, the construction personnel can control the reinforcement component to rotate until the limiting component abuts against the base unit. At this time, the reinforcement component is exactly located at the position that forms a connection with the base unit, thereby reducing the construction difficulty of the reinforcement component and making it easier for the construction personnel to construct the foundation pit support structure.

[0037] In summary, this application includes at least one of the following beneficial effects:

[0038] 1. It can improve the overall structural strength of the foundation pit support structure, thereby improving the support effect of the foundation pit support structure on the foundation pit;

[0039] 2. After the foundation pit support structure is completed, the reinforcement components can protect the support components and effectively prevent construction personnel from applying external forces to the support components during subsequent construction. This reduces the probability that the foundation pit support structure will affect the support effect of the foundation pit, and thus enables the foundation pit support structure to play a supporting role in the stability of the foundation pit.

[0040] 3. It can reduce the construction difficulty of foundation pit support structures, thereby improving the construction efficiency of foundation pit support structures;

[0041] 4. After the foundation pit support structure is completed, it is convenient for construction personnel to inspect, adjust and reinforce it, so that the foundation pit support structure can provide a stable support effect for the foundation pit for a long time.

[0042] 5. During the construction of the support components, the angle and position of the reinforcement components can be adjusted according to the requirements, so that the reinforcement components can provide a good construction environment for the construction personnel and facilitate the construction of the support components. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of a foundation pit support structure according to an embodiment of this application;

[0044] Figure 2 This is a structural schematic diagram of a portion of a foundation pit support structure in an embodiment of this application;

[0045] Figure 3 yes Figure 2 A cross-sectional view along line AA.

[0046] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0047] Figure 5 This is a schematic diagram of the internal structure of the support unit in the embodiments of this application;

[0048] Figure 6 This is a schematic diagram of the foundation pit support structure when the reinforcement provides rain protection in the embodiments of this application;

[0049] Figure 7 This is a schematic diagram of the foundation pit support structure when the reinforcement provides a sunshade effect in the embodiments of this application;

[0050] Figure 8 This is a schematic diagram of the foundation pit support structure when the reinforcement components are not functioning in the embodiments of this application.

[0051] Explanation of reference numerals in the attached drawings: 1. Support assembly; 11. Base unit; 111. Base plate; 1111. First through hole; 1112. Connecting part; 112. Reinforcing rib; 113. First fixing member; 12. Support unit; 121. Support plate; 1211. Cavity; 122. Adjusting member; 1221. Driving part; 1222. Adjusting part; 123. Movable part; 124. Snap-fit ​​member; 125. First spring 1. Component; 126. Second elastic component; 127. Cover plate; 2. Reinforcing component; 21. Fixing base; 211. Second through hole; 22. Second fixing component; 23. Reinforcing component; 231. Clearance hole; 232. Limiting component; 24. Drive unit; 3. Support column; 4. Locking component; 101. Foundation pit; 102. Foundation; 103. Insertion groove; 104. Snap-fit ​​groove; 105. Guide part; 106. Positioning groove. Detailed Implementation

[0052] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0053] Reference Figure 1 and Figure 2 This application discloses a foundation pit support structure for supporting a deep foundation pit 101 (hereinafter referred to as a deep foundation pit). It includes several support components 1 and several reinforcement components 2. The support components 1 are installed inside the foundation pit 101 to support the pit walls around the foundation pit 101, with each support component 1 supporting one side of the pit wall. The reinforcement components 2 are fixedly installed on the foundation 102 surrounding the foundation pit 101, connecting the support components 1 and the foundation 102 to improve the structural strength of the support components 1, thereby improving the overall structural strength of the foundation pit support structure. Each reinforcement component 2 corresponds one-to-one with each support component 1, meaning each reinforcement component 2 works in conjunction with each support component 1. In this embodiment, the foundation pit 101 is preferably rectangular, therefore the foundation pit support structure includes four support components 1 and four reinforcement components 2.

[0054] Furthermore, the foundation pit support structure also includes several support columns 3 that provide support at the junction of adjacent pit walls on both sides of the foundation pit 101. The support columns 3 are L-shaped column structures. After the four support components 1 are constructed in the foundation pit 101, the two ends of the support columns 3 respectively contact and abut against the two support components 1, the support columns 3 fill the gap between the two support components 1, and a fixed connection is formed between the support columns 3 and the adjacent support components 1.

[0055] Reference Figure 2 and Figure 3The support assembly 1 includes several base units 11 and several support units 12. The base units 11 are fixedly installed on the pit wall at the bottom of the pit 101 to provide bottom support for the entire support assembly 1. The several support units 12 are fixedly connected to each other to form a wall structure. The wall structure fits against the pit wall on one side of the pit 101, thereby providing support for the pit wall. At the same time, the wall structure and the several base units 11 are connected together, and the several base units 11 provide bottom support for it.

[0056] The base unit 11 includes a base plate 111, several reinforcing ribs 112, and several first fixing members 113. The base plate 111 is an L-shaped plate structure with its two ends extending outward perpendicularly to each other. After the base unit 11 is installed, the side of one end of the base plate 111 is in contact with the pit wall at the bottom of the pit 101, and the side of the other end is in contact with the pit wall on one side of the pit 101.

[0057] Preferably, the base unit 11 includes one reinforcing rib 112. After the base unit 11 is installed, the reinforcing rib 112 is located on the side of the base plate 111 away from the foundation 102 and between the two ends of the base plate 111. The two ends of the reinforcing rib 112 are fixedly connected to the sides of the two ends of the base plate 111 to form a triangular support. In this embodiment, the reinforcing rib 112 is preferably fixedly connected to the base plate 111 by welding.

[0058] After the base unit 11 is installed, a number of first through holes 1111 are opened on the end of the base plate 111 that is in contact with the bottom wall of the pit 101 for the first fixing member 113 to pass through. Preferably, there are two first through holes 1111 on the base plate 111. The two first through holes 1111 are located on both sides of the fixed connection position between the reinforcing rib 112 and the base plate 111. The first fixing member 113 is a long nail structure. The tail of the first fixing member 113 passes through the first through hole 1111 and is inserted into the foundation 102 below the pit 101 until the head of the first fixing member 113 abuts against the base plate 111. At this time, the first fixing member 113 will fix the position of the base plate 111 in the pit 101.

[0059] During the installation of the base unit 11, several base units 11 are arranged sequentially along the length of one side of the pit 101 at the bottom of the pit 101, with adjacent base plates 111 abutting against each other and fixedly connected. In this embodiment, it is preferable that adjacent base plates 111 are fixedly connected by a steel plate and two bolts. The bolts pass through the steel plate and are threaded into the base plate 111, and the two bolts fix both ends of the steel plate to the adjacent base plate 111 respectively.

[0060] Reference Figure 4 and Figure 5The support unit 12 includes a support plate 121, an adjusting component 122, several movable components 123, and several snap-fit ​​components 124. The support plate 121 is a square plate structure, and the side length of the support plate 121 is equal to the side length of the base plate 111. Several support plates 121 near the bottom of the pit 101 correspond one-to-one with several base plates 111. Several support plates 121 are arranged in an array on one side wall of the pit 101, and the sides of adjacent support plates 121 are attached to each other. The support plates 121 near the bottom of the pit 101 are also attached to the corresponding base plates 111.

[0061] The support plate 121 has a cavity 1211 inside. The movable part 123 is slidably connected to the support plate 121. The cavity 1211 provides sliding space for the movable part 123 to slide, and the movable part 123 can enter and exit one side of the support plate 121 during the sliding process. Different movable parts 123 enter and exit different sides of the support plate 121 when sliding. The sliding direction of the movable part 123 is parallel to the plane of the support plate 121 and perpendicular to the length direction of its sliding into and out of the side of the support plate 121.

[0062] One end of the adjusting member 122 is inserted into the support plate 121 in a direction perpendicular to the plane of the support plate 121 and is located in the cavity 1211. The end of the adjusting member 122 located in the cavity 1211 extends outward in a direction parallel to the plane of the support plate 121, and has several driving parts 1221. The driving parts 1221 correspond one-to-one with several movable parts 123. The adjusting member 122 is threadedly engaged with the support plate 121 and can rotate relative to the support plate 121 (the threaded engagement structure is omitted in the attached figure). The rotation axis of the adjusting member 122 is perpendicular to the plane of the support plate 121 and coincides with the center line of the support plate 121. The end of the adjusting member 122 away from the driving parts 1221 extends outward to form the adjusting part 1222, which is convenient for construction personnel to control its rotation. During the rotation of the adjusting member 122, the driving parts 1221 can contact the corresponding movable parts 123 and drive them to slide relative to the support plate 121. A number of snap-fit ​​parts 124 correspond one-to-one with a number of movable parts 123. One end of the snap-fit ​​part 124 is rotatably connected to the end of the movable part 123 away from the adjusting part 122. The rotation axis of the snap-fit ​​part 124 is parallel to the rotation axis of the adjusting part 122.

[0063] The support plate 121 has several insertion slots 103 for inserting movable parts 123 and several locking slots 104 for locking fasteners 124. The insertion slots 103 are adapted to the part of the movable part 123 that is outside the support plate 121 when it slides outward to the limit position. The locking slots 104 are adapted to the locking fasteners 124. The insertion slots 103 and the locking slots 104 correspond one-to-one. The locking slots 104 are located on one side of the insertion slots 103. The locking slots 104 form an opening on the side wall of the insertion slots 103 away from the opening of the insertion slots 103, that is, the locking slots 104 communicate with the corresponding insertion slots 103.

[0064] Several base plates 111 have identical insertion slots 103 and snap-fit ​​slots 104 at their ends that abut against the support plates 121. Several support columns 3 have identical insertion slots 103 and snap-fit ​​slots 104 on their sides near the adjacent support plates 121. After the positions of the support plates 121 on one side of the pit wall of the foundation pit 101 are determined, several movable parts 123 on the support plates 121 are aligned with the insertion slots 103 on the adjacent support plates 121, the insertion slots 103 on the base plates 111, or the insertion slots 103 on the support columns 3 along their own sliding direction. The control adjustment part 122 can be rotated to drive the movable part 123 to slide and engage with the corresponding insertion slot 103. The movable part 123 will also drive the snap-fit ​​part 124 to move until it abuts against the bottom wall of the insertion slot 103 and then rotates into the snap-fit ​​slot 104 to form a snap-fit ​​engagement with the snap-fit ​​slot 104. When there is a movable part 123 that engages with the insertion slot 103 and a snap-fit ​​part 124 that engages with the snap-fit ​​slot 104 between the two support plates 121, between the support plate 121 and the base plate 111, or between the support plate 121 and the support column 3, a fixed connection is formed between the two support plates 121, between the support plate 121 and the base plate 111, or between the support plate 121 and the support column 3. In this embodiment, the support unit 12 preferably includes four movable parts 123, and the number of the driving part 1221, snap-fit ​​part 124, insertion slot 103, and snap-fit ​​slot 104 on the adjusting part 122 is also four.

[0065] Furthermore, the support unit 12 also includes a plurality of first elastic elements 125, each corresponding to a plurality of snap-fit ​​elements 124. The first elastic elements 125 are fixedly installed at the rotational connection position between the snap-fit ​​elements 124 and the movable element 123, and the first elastic elements 125 drive the snap-fit ​​elements 124 to rotate until their length direction is parallel to and maintained with the sliding direction of the movable element 123. Preferably, the first elastic element 125 is a torsion spring, and the structure of the first elastic element 125 is omitted in the attached drawings.

[0066] The support plate 121, the base plate 111, and the support column 3 all have guide portions 105 on the bottom wall of the insertion groove 103. When the snap-fit ​​member 124 enters the insertion groove 103 under the drive of the movable member 123, the first elastic member 125 keeps the snap-fit ​​member 124 in a fixed position relative to the movable member 123. Until the end of the snap-fit ​​member 124 away from the movable member 123 abuts against the guide portion 105, the guide portion 105 guides the snap-fit ​​member 124 to continue sliding with the movable member 123 and rotate toward the snap-fit ​​groove 104 and finally enter the snap-fit ​​groove 104 to engage with it.

[0067] Furthermore, the adjustment member 122 is restricted during the threaded engagement with the support plate 121. When the adjustment member 122 is screwed into the limit position in the direction closer to the support plate 121, the movable member 123 abuts against the corresponding drive part 1221. One end of the movable member 123 protrudes from the support plate 121 and is in a state of sliding outward to the limit position. At this time, the part of the movable member 123 protruding from the support plate 121 can just be inserted into the insertion slot 103, and the locking member 124 can just be locked into the locking slot 104 after rotation. When the adjustment member 122 is screwed out to the limit position in the direction away from the support plate 121, the movable member 123 abuts against the corresponding drive part 1221. The movable member 123 will completely retract into the cavity 1211 and be in a state of sliding inward to the limit position. At this time, the locking member 124 will also be located in the cavity 1211 under the action of the first elastic member 125.

[0068] Furthermore, the support unit 12 also includes a plurality of second elastic elements 126. Each movable element 123 is equipped with a second elastic element 126 on its periphery. The two ends of the second elastic element 126 are fixedly connected to the movable element 123 and the support plate 121, respectively. Preferably, the second elastic element 126 is a tension spring. The second elastic element 126 drives the movable element 123 to slide towards the adjusting element 122. During the process of controlling the adjusting element 122 to drive the movable element 123 to slide, the second elastic element 126 will keep the movable element 123 abutting against the corresponding driving part 1221.

[0069] Furthermore, the support unit 12 also includes several cover plates 127, each corresponding to a number of movable parts 123. The cover plates 127 are rotatably connected to the support plate 121, and the rotation axis of the cover plates 127 is perpendicular to the plane of the support plate 121. During the rotation of the cover plates 127, the opening and closing of the cavity 1211 can be controlled, and the rotation of the cover plates 127 relative to the support plate 121 is restricted. When the cover plates 127 rotate to their limit position in the direction closer to the support plate 121, the cover plates 127 close the opening on the cavity 1211 through which the movable parts 123 slide in and out. When the cover plates 127 rotate to their limit position in the direction away from the support plate 121, the opening of the cavity 1211 on one side of the cover plates 127 is open, and the cover plates 127 are in a position parallel to the sliding direction of the corresponding movable parts 123.

[0070] Furthermore, the rotation shaft of the cover plate 127 extends outward through the support plate 121 along the rotation axis, and the direction in which the rotation shaft of the cover plate 127 extends through the support plate 121 is the same as the direction in which the adjusting member 122 extends through the support plate 121 (the rotation shaft of the cover plate 127 extending through the support plate 121 is omitted in some of the attached drawings). Construction personnel can control the rotation of the cover plate 127 through the end of the rotation shaft, thus facilitating its use.

[0071] The support plate 121, base plate 111, and support column 3 all have a positioning groove 106 adapted to the cover plate 127 on one side of the insertion groove 103, and the positioning groove 106 communicates with the insertion groove 103. After the support plate 121 is positioned on the pit wall on one side of the pit 101, several cover plates 127 on the support plate 121 are controlled to rotate outward to their limit positions. During the rotation of the cover plate 127, it first enters the insertion groove 103 and finally enters the positioning groove 106 to cooperate with the positioning groove 106. At this time, the adjacent movable part 123 of the cover plate 127 can be aligned with the corresponding insertion groove 103 along its own sliding direction, so that the cover plate 127 can play a pre-positioning role for the subsequent insertion and cooperation of the movable part 123 with the insertion groove 103 and the locking part 124 with the locking groove 104.

[0072] Reference Figure 2 and Figure 3The reinforcement component 2 includes a fixing base 21 and several second fixing members 22. The fixing base 21 is a plate-shaped structure and is placed horizontally on the foundation 102 on one side of the pit 101, with part of the fixing base 21 located at the opening of the pit 101. The bottom of the part of the fixing base 21 located at the opening of the pit 101 also has a structure that forms a fixed connection with the support plate 121, the base plate 111, and the support column 3 for the support unit 12. That is, the fixing base 21 also has several insertion slots 103, several snap-fit ​​slots 104, and several positioning slots 106, and each of the insertion slots 103 has a guide part 105 (not shown in the figure). After the support component 1 is constructed, the several support plates 121 located on the top of the support component 1 can form a fixed connection with the fixing base 21.

[0073] The second fastener 22 is also a long nail structure. The fixing base 21 has several second through holes 211 for the second fastener 22 to pass through. After the tail of the second fastener 22 passes through the second through holes 211, it is inserted into the foundation 102 on one side of the pit 101 until the head of the second fastener 22 abuts against the fixing base 21. At this time, the second fastener 22 will fix the position of the fixing base 21 relative to the foundation 102 on one side of the pit 101. There is also a connection between the support component 1 and the fixing base 21, which can further improve the structural stability of the support component 1.

[0074] The reinforcement component 2 also includes a reinforcement member 23, which is also a plate-like structure. The reinforcement member 23 is installed vertically and is located inside the pit 101 and on the side of the support component 1 closest to the inside of the pit 101. The reinforcement member 23 protects the support component 1 on one side, thereby effectively preventing collisions with the support component 1 during subsequent construction that could affect its support effect.

[0075] The top of the reinforcement member 23 is connected to the end of the fixed base 21 near the pit 101, and the bottom of the reinforcement member 23 is fixedly connected to several corresponding base plates 111. Several clearance holes 231 are provided on the reinforcement member 23 for the adjustment part 1222 of the adjustment member 122 to pass through, so that the construction personnel can control the adjustment member 122 through the reinforcement member 23.

[0076] Furthermore, the foundation pit support structure also includes several locking elements 4, each corresponding to a certain number of adjusting elements 122 on the support components 1. The locking element 4 is sleeved on one end of the adjusting part 1222 that protrudes from the reinforcing member 23, and the locking element 4 is threadedly engaged with the adjusting part 1222. When the locking element 4 is screwed into the adjusting part 1222 towards the reinforcing member 23 until it presses against the reinforcing member 23, the adjusting part 122 will form a connection with the reinforcing member 23 through the corresponding locking element 4, thereby improving the reinforcement effect of the reinforcing component 2 on the support component 1, and thus improving the overall structural strength of the foundation pit support structure.

[0077] Reference Figure 2 and Figure 4 Furthermore, the threaded engagement direction between the locking member 4 and the adjusting part 1222 is the same as the threaded engagement direction between the adjusting member 122 and the support plate 121. After the locking member 4 is pressed against the reinforcing member 23, the locking member 4 is rotated further so that it is screwed into the adjusting part 1222 towards the reinforcing member 23. At this time, the locking member 4 will drive the adjusting member 122 to rotate together, thereby causing the adjusting member 122 to be screwed into the support plate 121, thus ensuring that the movable member 123 is inserted into the insertion slot 103 and the snap-fit ​​member 124 is snap-fitted into the snap-fit ​​slot 104.

[0078] During the use of the foundation pit support structure, the degree of engagement between the movable part 123 and the insertion slot 103, the degree of engagement between the snap-fit ​​part 124 and the snap-fit ​​slot 104, and the tightness of the locking part 4 against the reinforcement part 23 may all decrease, leading to loosening and potential safety hazards. Construction personnel need to regularly check for these hazards. During the inspection, construction personnel can simply rotate the locking part 4 to strengthen the tightness of the fixed part against the reinforcement part 23. Continuing to rotate the locking part 4 ensures that the movable part 123 and the insertion slot 103 are properly engaged, and that the snap-fit ​​part 124 and the snap-fit ​​slot 104 are properly engaged, facilitating inspection and adjustment by construction personnel.

[0079] Back Figure 2 and Figure 3 Furthermore, preferably, the reinforcement component 23 is rotatably connected to the fixed base 21, and the rotation axis of the reinforcement component 23 is horizontal and parallel to one side wall of the adjacent foundation pit 101. After the construction of one reinforcement component 2 is completed, during the construction of adjacent reinforcement components 2, when controlling the rotation of the reinforcement component 23, there is no positional interference between the reinforcement component 23 and the adjacent reinforcement component 2 or the adjacent support component 1. Correspondingly, the plurality of clearance holes 231 opened on the reinforcement component 23 are all oblong holes.

[0080] The end of the reinforcing member 23 away from the fixed base 21 has a limiting part, and the end of the base plate 111 away from the pit wall of the pit 101 it abuts has a connecting part 1112. When the reinforcing member 23 is rotated to a vertical position, the limiting part and the connecting part 1112 fit together and abut, and the reinforcing member 23 and the base plate 111 are fixedly connected through the limiting part and the connecting part 1112. In this embodiment, it is preferable that the limiting part and several connecting parts 1112 are fixedly connected by several bolts in a threaded connection.

[0081] Furthermore, the preferred reinforcement component 2 also includes a drive unit 24 for driving the reinforcement member 23 to rotate relative to the fixed base 21. In this embodiment, the preferred drive unit 24 includes a motor and a gear set (the gear set structure is concealed by a cover in the figure). The motor is fixedly mounted on the fixed base 21, the input end of the gear set is fixedly connected to the output shaft of the motor, and the output end of the gear set is fixedly connected to the position of the rotation axis on the reinforcement member 23. The motor provides power, and the gear set transmits power to control the rotation of the reinforcement member 23 relative to the fixed base 21. In other embodiments, manual control can also be used to control the rotation of the reinforcement member 23.

[0082] Reference Figure 2 and Figure 6 The reinforcement member 23, which rotates under the control of the drive unit 24, can be positioned at different angles according to different needs. After the fixed seat 21 is fixed, if the construction process is affected by rain during the construction of the support assembly 1, the reinforcement member 23 can be controlled to rotate to an inclined state (the end of the reinforcement member 23 closest to the fixed seat 21 is the inclined lower end). At this time, the reinforcement member 23 is located above the construction site of the support assembly 1, which serves to shelter from rain and can guide rainwater to flow towards the fixed seat 21, thereby reducing the inconvenience caused by rainwater to the construction process of the support assembly 1. In other embodiments, in order to improve the rain-shelter effect of the reinforcement member 23 in the above state, a covering can also be placed on top of the reinforcement member 23 to cover several clearance holes 231.

[0083] Reference Figure 2 and Figure 7 If the construction process is affected by the scorching sun, the reinforcement 23 can be rotated to an inclined state (the end of the reinforcement 23 near the fixed seat 21 is the inclined upper end). At this time, the reinforcement 23 is located above the construction site of the support component 1 and plays a shading role, making the construction environment cooler, and the light can pass through several clearance holes 231 to reach the construction site, meeting the lighting conditions required for construction.

[0084] Reference Figure 2 and Figure 8If the environment of the construction site is suitable, and there is no need to create a suitable environment for the construction site through the reinforcement 23, the reinforcement 23 can be controlled to rotate to a vertical or inclined state (the end of the reinforcement 23 away from the fixed seat 21 is the inclined upper end and located above the fixed seat 21), thereby reducing the impact of the reinforcement 23 on the construction site.

[0085] The implementation principle of a foundation pit support structure according to an embodiment of this application is as follows:

[0086] First, determine the position of several support columns 3 in the foundation pit 101 and install and fix them; then start from one side of the foundation pit 101 to support and complete the construction of the foundation pit 101 support components 1 in sequence.

[0087] When constructing on one side of the foundation pit 101, the installation positions of the reinforcement components 2 are first determined based on the support columns 3 on the foundation 102 surrounding the foundation pit 101. Then, the rotation of the reinforcement components 23 is controlled to provide a suitable construction environment for the construction of the support components 1. Next, the positions of several base units 11 are determined based on the support columns 3 within the foundation pit 101 and are installed and fixed. Then, several support units 12 are arranged on the pit wall on one side of the foundation pit 101 and their positions are determined. Then, several adjusting components 122 are controlled to rotate so that several support units 12 are fixedly connected to each other, between several support units 12 and several base units 11, between several support units 12 and support columns 3, and between several support units 12 and fixed seats 21, thereby improving the structural strength of the support components 1. Then, the reinforcement components 23 are controlled to rotate to a vertical state so that the reinforcement components 23 are fixedly connected to several base units 11. Several locking components 4 are used to strengthen the reinforcement effect of the reinforcement components 2 on the support components 1, thereby further improving the structural strength of the foundation pit support structure.

[0088] After the foundation pit support structure is completed, the reinforcement component 23 protects the support component 1. At the same time, the construction personnel can strengthen the tightness of the fixed component against the reinforcement component 23 through the reinforcement component 23 and ensure that the movable component 123 is inserted into the slot 103 and the snap-fit ​​component 124 is snap-fitted into the slot 104, thereby ensuring that the foundation pit support structure can provide stable support for the foundation pit 101.

[0089] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A foundation pit support structure, characterized in that, It includes a support component (1) and a reinforcement component (2), wherein the support component (1) is disposed in the foundation pit (101) and the reinforcement component (2) is disposed on the foundation (102) surrounding the foundation pit (101); The support assembly (1) includes a plurality of base units (11) and a plurality of support units (12). The base units (11) are fixedly connected to the pit wall at the bottom of the pit (101), and the base units (11) are in contact with the pit wall on one side and the pit wall at the bottom of the pit (101). The plurality of support units (12) are connected to the plurality of base units (11), and the plurality of support units (12) are interconnected. The support units (12) abut against the pit wall on one side of the pit (101), and the plurality of base units (11) and the plurality of support units (12) cover the pit wall around the pit (101). The reinforcement component (2) includes several fixed seats (21) and several reinforcement components (23). The fixed seats (21) are connected to the foundation (102) on one side of the pit (101). Several support units (12) near the fixed seats (21) are connected to the fixed seats (21). The reinforcement components (23) are located on one side of the support component (1). One end of the reinforcement components (23) is rotatably connected to the fixed seats (21). The rotation axis of the reinforcement components (23) is horizontal. The other end of the reinforcement components (23) is connected to the base unit (11). The support unit (12) includes a support plate (121), a plurality of movable parts (123) and an adjusting part (122). The plurality of movable parts (123) are disposed at the edge of the support plate (121). The support plate (121) has a cavity (1211) inside. The movable parts (123) are slidably connected to the support plate (121). The cavity (1211) provides sliding space for the movable parts (123) to slide. The support plate (121) also has a plurality of insertion slots (103) for the movable parts (123) to be inserted and fitted at the edge of the support plate (121). The adjusting member (122) is threadedly engaged with the support plate (121), and the rotation axis of the adjusting member (122) during the threaded engagement process is perpendicular to the sliding direction of the movable member (123); one end of the adjusting member (122) is located inside the support plate (121) and abuts against several movable members (123), and the other end of the adjusting member (122) is located on one side of the support plate (121); the rotation of the adjusting member (122) drives the several movable members (123) to slide, and the movable members (123) slide into the corresponding insertion slots (103) on the adjacent support plates (121); The adjusting member (122) has a plurality of driving parts (1221) extending outward from one end in the cavity (1211) in a direction parallel to the plane of the support plate (121), and the plurality of driving parts (1221) correspond one-to-one with the plurality of movable parts (123); The support unit (12) further includes a plurality of snap-fit ​​components (124), which are rotatably connected to one end of the plurality of movable components (123) away from the adjusting component (122), and the rotation axis of the snap-fit ​​component (124) is parallel to the rotation axis of the adjusting component (122). The support plate (121) has a plurality of snap-fit ​​grooves (104) adapted to the snap-fit ​​member (124) inside. The plurality of snap-fit ​​grooves (104) correspond one-to-one with the plurality of insertion grooves (103). The snap-fit ​​grooves (104) communicate with the insertion grooves (103), and the opening of the snap-fit ​​groove (104) is located at a position away from the opening of the insertion groove (103). The support unit (12) has guide portions (105) on the groove walls of several insertion slots (103) away from the opening. After the snap-fit ​​member (124) abuts against the guide portion (105), the guide portion (105) guides the snap-fit ​​member (124) to rotate into the snap-fit ​​slot (104).

2. The foundation pit support structure according to claim 1, characterized in that, The reinforcement member (23) has a plurality of clearance holes (231) for the adjustment member (122) to pass through the end away from the support plate (121). It also includes several locking parts (4), which correspond one-to-one with several adjusting parts (122). The locking parts (4) are connected to the adjusting parts (122) at the end away from the support plate (121), and the locking parts (4) are positioned against the reinforcing parts (23) on the side of the reinforcing parts (23) away from the support assembly (1).

3. The foundation pit support structure according to claim 2, characterized in that, The locking member (4) is threadedly engaged with the adjusting member (122) at the end away from the support plate (121), and the direction of the threaded engagement between the locking member (4) and the adjusting member (122) is consistent with the direction of the threaded engagement between the adjusting member (122) and the support plate (121).

4. The foundation pit support structure according to claim 1, characterized in that, The support unit (12) further includes a plurality of first elastic elements (125), which correspond one-to-one with the plurality of snap-fit ​​elements (124); the first elastic elements (125) are disposed at the rotational connection position between the snap-fit ​​element (124) and the movable element (123), and the first elastic elements (125) drive the snap-fit ​​element (124) to rotate to a state parallel to the sliding direction of the movable element (123).

5. The foundation pit support structure according to claim 1, characterized in that, The support unit (12) also includes a plurality of cover plates (127), which correspond one-to-one with the plurality of movable parts (123); the cover plates (127) are rotatably connected to the support plate (121), and the rotation of the cover plates (127) controls the movable parts (123) to enter and exit the opening of the support plate (121); The support plate (121) is also provided with a plurality of positioning grooves (106) that communicate with the insertion groove (103). The positioning grooves (106) are adapted to the cover plate (127). After the cover plate (127) is rotated open and enters the positioning groove (106) on the other support plate (121), the two support plates (121) are fitted together and abut against each other, and the adjacent movable parts (123) are aligned with the insertion grooves (103) on the other support plate (121) along their own sliding direction.

6. The foundation pit support structure according to claim 1, characterized in that, The support unit (12) also includes a plurality of second elastic elements (126), which drive a plurality of the movable elements (123) to slide toward the adjusting element (122).

7. The foundation pit support structure according to claim 2, characterized in that, The reinforcement component (2) further includes a drive unit (24) for driving the reinforcement member (23) to rotate. The drive unit (24) is disposed on the fixed base (21), and the operating end of the drive unit (24) is away from the reinforcement member (23).

8. The foundation pit support structure according to claim 5, characterized in that, The reinforcement component (2) also includes a limiting member (232), which is disposed at the end of the reinforcement component (23) away from the fixed base (21); when the reinforcement component (23) rotates toward the base unit (11) to a vertical position, the limiting member (232) abuts against the base unit (11) and is detachably connected.

Images