Foundation pit supporting structure for urban underground station construction

Abstract

The utility model discloses an urban underground station construction foundation pit supporting structure which comprises a pile column and a supporting structure arranged on the pile column, and the supporting structure comprises an installation base arranged on the periphery of the pile column in a sliding mode, a supporting rod arranged on the installation base in a rotating mode and a supporting plate hinged to the end, away from the installation base, of the supporting rod. A first locking piece, a second locking piece and a third locking piece are arranged at the positions, connected with the corresponding ends of the pile, the mounting base and the supporting rod, of the mounting base, the supporting rod and the supporting plate correspondingly. According to the foundation pit supporting structure, the corresponding installation position and the corresponding height and angle of the supporting structure on the foundation pit supporting structure can be flexibly adjusted according to different installation environments and installation requirements, the good protection effect is achieved while adjustment is convenient, the installation flexibility, convenience and efficiency are further improved, and different construction requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to urban rail transit construction technical field, concretely relates to a kind of urban underground station construction foundation pit support structure. BACKGROUND

[0002] In urban underground station construction, foundation pit support structure is one of the key designs to ensure the stability of foundation pit and avoid the impact on the surrounding environment, which can effectively prevent the collapse and deformation of foundation pit during construction. Currently, the common foundation pit support forms of open-cut method construction of urban tunnel engineering and urban rail transit engineering include slope support and foundation pit enclosure structure system. Foundation pit engineering is to excavate a underground space from ground, and vertical retaining enclosure structure is generally set around deep foundation pit. The retaining enclosure structure generally has a certain insertion depth of plate (pile) wall structure under excavation face base. The plate (pile) wall has cantilever type, single support type and multi-support type. The support structure plays a role in reducing the deformation of retaining enclosure structure and controlling the bending moment of wall, and is divided into two forms of inner support and outer anchor.

[0003] However, most of the pile foundation or cantilever structure in the foundation pit enclosure structure is a single fixed structure, and for different geological conditions and surrounding environment, the corresponding structure needs to be customized in advance, and there are certain limitations in the installation process. It is not convenient to flexibly adjust the corresponding installation position according to the actual installation situation and corresponding connection structure, and it is not convenient to flexibly adjust the corresponding height and corresponding angle when protecting and setting the slope with different slope. The protection effect is not ideal, which increases the inconvenience in the construction process and reduces the construction efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of urban underground station construction foundation pit support structure, which can flexibly adjust the corresponding installation position, support structure corresponding height and angle according to different installation environment and installation demand, convenient to adjust and also have higher protection effect, further improve installation flexibility, convenience and efficiency, meet different construction requirements.

[0005] The utility model solves the above-mentioned technical scheme adopted by the technical scheme:

[0006] A kind of urban underground station construction foundation pit support structure, including pile column and the support structure set on it, the support structure includes installation seat that is slidably arranged on the periphery of pile column, and support rod and support plate that are rotatably arranged on installation seat, and support plate is hingedly connected to one end of support rod away from installation seat, first locking member, second locking member and third locking member are respectively arranged on the connecting position of corresponding end of pile column, installation seat and support rod on installation seat, support rod and support plate.

[0007] Preferably, the support structure and the corresponding mounting seat are provided with a plurality of groups of support rods and support plates.

[0008] Preferably, the mounting seat is provided with a plurality of groups of pressing plates arranged around the mounting seat, and the first locking members are arranged at corresponding positions of the mounting seat and connected with the internal pressing plates.

[0009] Preferably, the support rod is detachably mounted on the mounting seat through a connecting seat arranged on the mounting seat and connected with one end of the support rod, and the second locking member is arranged on the connecting seat.

[0010] Preferably, the connecting seat is detachably mounted on the mounting seat through a top cover detachably connected with the top of the mounting seat.

[0011] Preferably, the support plate is detachably mounted on one end of the support rod through a connecting portion arranged on the support plate and arranged in a plurality of groups in different shapes, and the connecting portion comprises a second connecting seat detachably mounted on the support plate, a third connecting rod arranged on the second connecting seat, and a third locking member arranged on two ends of the third connecting rod.

[0012] Preferably, the support rod comprises a first connecting rod detachably connected with the connecting seat and a second connecting rod arranged on the first connecting rod in a sliding manner, the support plate is arranged on the corresponding end of the second connecting rod through the connecting portion arranged on the support plate, and the fourth locking member is arranged at the sliding connection between the first connecting rod and the second connecting rod.

[0013] Preferably, a plurality of support rods are arranged between the adjacent support structures on the upper and lower sides of the pile column, and the two ends of the support rod are connected through the connecting holes arranged at the corresponding positions of the first connecting rods.

[0014] Preferably, the pile column comprises a support column and a base, the support structure is arranged on the support column, the base comprises a first seat body and a second seat body detachably connected with the upper and lower ends of the support column, and a plurality of reinforcing ribs are arranged around the base, and the second connecting holes are arranged on the bottom seat bodies between the adjacent reinforcing ribs.

[0015] Preferably, the bottom of the second seat body arranged at the bottom end of the support column is further provided with a pointed structure.

[0016] Compared with the prior art, the utility model has the following advantages and effects:

[0017] The utility model relates to a kind of urban underground station construction foundation pit support structure, this kind of urban underground station construction foundation pit support structure can be installed fixed by the structure setting of its upper pile column, while its upper setting support structure, after pile column installation is completed, it can be connected by the corresponding connecting mode of installation seat, support rod and support plate among them, it is convenient to carry out flexible installation and support rod, support plate on the adaptive adjustment of corresponding height and angle of support structure, the installation seat and its upper support rod can play certain support protection effect, while cooperating with the hinged structure of support rod corresponding one end support plate, it can play certain fender setting effect to the position of inner slope of foundation pit, and it can be rotated according to the specific slope of slope surface Angle process, make it more conforming and stable with slope surface, the overall structure setting of pile column and its upper support structure, with higher installation flexibility, convenience and high efficiency, it can be flexibly adjusted according to the actual installation situation of site corresponding structure, it is convenient to adjust while meeting different action environment and construction requirement, improve structural applicability and construction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structure schematic diagram of a kind of urban underground station construction foundation pit support structure of the utility model embodiment.

[0019] Figure 2 It is the partial enlarged view of pile column upper support structure of the utility model embodiment.

[0020] Figure 3 It is the enlarged view of the connecting structure between first connecting rod and second connecting rod in support rod of the utility model embodiment connection seat.

[0021] Figure 4 It is the structure exploded view of installation seat and its upper top cover and support rod one end connection seat of the utility model embodiment.

[0022] Figure 5 It is the structure exploded view of second connecting rod one end support plate and its upper connecting portion of the utility model embodiment.

[0023] Figure 6 It is the enlarged view of the connecting structure between adjacent support structures of the utility model embodiment support rod.

[0024] Figure 7 The utility model embodiment is connected through the schematic diagram of base between multiple groups of support columns.

[0025] Figure number: pile 1, support column 11, base 12, reinforcing rib 120, second connecting hole 1201, first seat body 121, second seat body 122, tip structure 123, support structure 2, mounting seat 21, first locking piece 211, ring groove 212, pressing plate 213, top cover 214, support rod 22, second locking piece 221, first connecting rod 222, second connecting rod 223, fourth locking piece 224, connecting hole 225, support plate 23, connecting part 230, second connecting seat 2301, third connecting rod 2302, third locking piece 231, connecting seat 24, mounting hole 25. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present application will be described in detail below with reference to the drawings, and the following embodiments are illustrative of the present application and are not intended to limit the present application.

[0027] Reference Figure 1 , the present embodiment relates to a kind of urban underground station construction foundation pit support structure, including pile 1 and the support structure 2 set on it, the support structure 2 include the mounting seat 21 of slidingly arranged in the periphery of pile 1 and the support rod 22 of rotationally arranged on mounting seat 21 and the support plate 23 of hingedly arranged along the end of support rod 22 away from mounting seat 21, the connecting position of the corresponding end of mounting seat 21, support rod 22 and support plate 23 with pile 1, mounting seat 21 and support rod 22 is respectively provided with first locking piece 211, second locking piece 221 and third locking piece 231.

[0028] Specifically in the present embodiment, as Figure 1 Indicated in the overall structure of such pile 1 and the support structure 2 set on it and corresponding connection mode, in actual installation, pre-fixing support process can be carried out on corresponding installation position by pile 1, while the sleeve process of mounting seat 21 in support structure 2 can be carried out on the pile 1, while in the sleeve process, first locking piece 211 provided on mounting seat 21 can be adjusted at different heights and locked and fixed at corresponding height on the periphery of pile 1, and then according to the actual installation situation, the support rod 22 can be rotated in corresponding direction along the ring groove 212 opened on the side of mounting seat 21, and the second locking piece 221 provided on the corresponding end thereof is locked and fixed in corresponding direction of support rod 22, specifically, according to installation requirements, the end of support rod 22 away from mounting seat 21 can be connected and supported by a plurality of rod bodies and other adaptive connection structures, or according to Figure 1The hinged process of the supporting plate 23 on the end of the supporting rod 22 away from the mounting base 21 can be carried out, and under the action of the third locking part 231 at the corresponding hinged position, the supporting plate 23 can be set on the corresponding side slope of the foundation pit according to the specific installation position of the pile 1, and can be rotated and adjusted at the corresponding angle on the end of the supporting rod 22 according to the specific slope of the slope surface at the setting position, and the corresponding angle locking process is carried out. The first locking part 211, the second locking part 221 and the third locking part 231 provided at the corresponding position can be provided in the form of a conventional bolt connection structure and respectively rotated and arranged at the corresponding position of the mounting base 21, the supporting rod 22 and the supporting plate 23 of the supporting structure 2, to realize the sequential adjustment and locking process of the mounting base 21 at the corresponding height of the pile 1, the supporting rod 22 along the corresponding direction of the ring groove 212 of the mounting base 21 and the supporting plate 23 at the corresponding end of the supporting rod 22. According to the actual installation requirement, the installation adjustment and fixed support process of the whole pile 1 and the supporting structure 2 on the corresponding installation position in the foundation pit is carried out. The urban underground station construction foundation pit supporting structure can be conveniently installed and fixed through the structure of the pile 1, and the supporting structure 2 provided thereon can be adjusted and fixed through the corresponding connection mode of the mounting base 21, the supporting rod 22 and the supporting plate 23 after the installation of the pile 1. According to different geological conditions and surrounding environment, the first locking part 211, the second locking part 221 and the third locking part 231 provided at the connecting position can be conveniently installed and adjusted, and the supporting structure 2 can be conveniently installed and adjusted, and the supporting rod 22 and the supporting plate 23 can be conveniently adjusted at the corresponding height and angle. The mounting base 21 and the supporting rod 22 thereon can play a certain supporting and protecting role, and the hinged structure of the supporting plate 23 at the corresponding end of the supporting rod 22 can play a certain surrounding and setting role at the side slope position in the foundation pit, and can be rotated at the corresponding angle according to the specific slope of the slope surface, so that it is more fitted and stable with the slope surface. Combined with the overall structure of the pile 1 and the supporting structure 2 thereon, the installation flexibility, convenience and efficiency are high, the corresponding structure can be flexibly adjusted according to the actual installation condition, the adjustment is convenient, different working environments and construction requirements are met, the structural applicability and construction efficiency are improved.

[0029] The supporting structure 2 and the supporting rod 22 and the supporting plate 23 rotatably arranged on the corresponding mounting base 21 are provided with a plurality of groups, and the specific groups are Figure 1As can be seen, the support structure 2 on the pile 1 can be added with multiple groups of support structures 2 according to different installation positions and installation requirements, and the support rods 22 and support plates 23 on the mounting seat 21 in the support structure 2 are arranged and fixed in different directions and angles along the outer periphery of the pile 1, so that the use flexibility and corresponding protection effect of the foundation pit support structure 2 of the urban underground station construction can be further improved, and multiple construction personnel can be simultaneously adjusted on the multiple groups of support structures 2 on the pile 1 during installation and adjustment, further improving the installation efficiency of the foundation pit support structure.

[0030] The multiple groups of pressing plates 213 are arranged around the mounting seat 21, the first locking member 211 is provided with multiple groups and is respectively arranged in the corresponding position of the mounting seat 21 and is connected with the internal pressing plate 213, and specific reference can be made to Figure 2 As shown, the corresponding end of the first locking member 211 matched with the bolt connecting member structure is arranged to rotate on the pressing plate 213, and the first locking member 211 matched with the thread at the connection position of the mounting seat 21 can drive the internal pressing plate 213 of the mounting seat 21 to move forward and backward during rotation, so as to realize the height adjustment and locking and fixing process of the mounting seat 21 on the outer periphery of the pile 1. The structure of the first locking member 211 connected with the multiple groups of pressing plates 213 in the mounting seat 21 is convenient to adjust, and can further improve the locking effect of the first locking member 211 on the mounting seat 21, and correspondingly improve the support and protection effect of the support rod 22 and the support plate 23 thereon on the mounting seat 21.

[0031] Referring to Figure 3 , the support rod 22 is detachably mounted on the mounting seat 21 through the connecting seat 24 rotatably arranged on the mounting seat 21, the second locking member 221 is rotatably arranged on the connecting seat 24, the connecting seat 24 is adapted to rotate in the ring groove 212 provided on the side of the mounting seat 21, the second locking member 221 matched with the bolt connecting member structure is threadedly matched and rotatably arranged on the connecting seat 24, so as to realize the locking process of the connecting seat 24 on the corresponding ring groove 212 of the mounting seat 21, and the multiple groups of mounting holes 25 provided on the corresponding positions and the multiple groups of bolt connecting members provided in the mounting holes 25 can be used to realize the detachable connection of the support rod 22 on the connecting seat 24, so as to further improve the detachability and flexibility of the support structure 2, and the support rod 22 of the corresponding length can be replaced according to different installation requirements.

[0032] Referring to Figure 4The connecting seat 24 is detachably installed on the mounting seat 21 through the top cover 214 detachably connected to the top of the mounting seat 21, a plurality of bolt connecting pieces are arranged between the mounting seat 21 and the top cover 214 for detachable connection, the detachable process of the connecting seat 24 rotatably arranged in the side ring groove 212 of the top cover 214 can be realized through the adaptive structure of the top cover 214, the structural detachability and the detachment flexibility of the whole support structure 2 are further improved, the increase and decrease process of the corresponding number of the plurality of connecting seats 24 and the support rods 22 thereon can be conveniently carried out according to different installation requirements, and the convenience and efficiency in the installation process are improved.

[0033] The support plate 23 is detachably installed at one end of the support rod 22 through the connecting part 230 arranged thereon and arranged in a plurality of different shapes, the connecting part 230 includes the second connecting seat 2301 detachably installed on the support plate 23, the third connecting rod 2302 rotatably arranged on the second connecting seat 2301, and the third locking piece 231 arranged in two groups and rotatably arranged at both ends of the third connecting rod 2302, and the corresponding structure of the connecting part 230 of the support plate 23 is specifically shown in Figure 5 The second connecting seat 2301 is detachably installed on the support plate 23 through the bolt connecting piece, the third connecting rod 2302 can be connected and rotated between the connecting seat 24 and the corresponding one end of the support rod 22 through the third locking piece 231 arranged at both ends of the third connecting rod 2302 in the form of a bolt connecting piece, and the locking and fixing process of the support plate 23 on the connecting seat 24 in the corresponding angle during the rotation process, and the support plate 23 can be arranged in the form of an arc plate and other different shaped plate structures according to different installation environments and blocking positions, so as to further improve the protection effect and applicability of the support plate 23. Figure 5

[0034] The support rod 22 includes the first connecting rod 222 detachably connected with the connecting seat 24 and the second connecting rod 223 slidably arranged on the first connecting rod 222, the support plate 23 acts on the corresponding one end of the second connecting rod 223 through the connecting part 230 arranged thereon, and the fourth locking piece 224 is arranged at the sliding connection between the first connecting rod 222 and the second connecting rod 223, as shown in Figure 3 ​The specific structure and corresponding connection mode of the first connecting rod 222 and the second connecting rod 223 in the shown supporting rod 22 can be detachably connected with the connecting seat 24 through the multiple groups of mounting holes 25 provided at the corresponding positions of the first connecting rod 222, and meanwhile the second connecting rod 223 on the installed supporting rod 22 can be extended and retracted along the adaptive sliding groove provided on both sides of the first connecting rod 222 through the mounting holes 25 provided on both sides and the fourth locking piece 224 provided on the bolt connecting piece structure, and the rotation process of the fourth locking piece 224 is cooperated, so as to realize the extension and retraction movement process and the locking and fixing process of the second connecting rod 223 in the first connecting rod 222. The supporting plate 23 installed on the corresponding end of the second connecting rod 223 through the connecting part 230 can be set and protected in different spans under the extension and retraction of the second connecting rod 223. The supporting rod 22 with such a structure can further expand its adjustment range, and the rotation process of the connecting seat 24 on the mounting seat 21 in the corresponding direction and the extension and retraction process of the second connecting rod 223 of the supporting plate 23 slidingly arranged on the first connecting rod 222 can realize the enclosure and setting process of the slope with different slopes at different positions in the corresponding direction and angle, meet different installation requirements, and further improve the protection range and corresponding protection effect of the supporting structure 2.

[0035] The supporting rods are also provided between the adjacent supporting structures 2 on the upper and lower sides of the pile column 1, and the two ends of the supporting rods are connected through the connecting holes 225 provided at the corresponding positions of the first connecting rod 222. Figure 6 As shown, the supporting rods can be inserted through the connecting holes 225 provided at the corresponding positions of the first connecting rod 222 in the supporting rod 22, so as to have a certain supporting effect on the supporting rods 22 between the adjacent supporting structures 2, and meanwhile the multiple groups of supporting rods with adaptive lengths can also ensure that the interval distance between the adjacent supporting structures 2 is equivalent, further improve the installation convenience and efficiency of the multiple groups of supporting structures 2 on the pile column 1, and make the adjacent supporting rods 22 supported on the same direction on the corresponding mounting seats 21 in the adjacent supporting structures 2 stable in the same supporting direction, so as to further improve the overall structural connection compactness and supporting stability of the city underground station construction foundation pit supporting structure 2 and the corresponding protection effect.

[0036] The pile 1 comprises a support column 11 and a base 12, the support structure 2 acts on the support column 11, the base 12 is detachably connected to the first seat body 121 and the second seat body 122 at the upper and lower ends of the support column 11 respectively, a plurality of reinforcing ribs 120 are arranged around the base 12, and second connecting holes 1201 are formed in the bottom seat body between adjacent reinforcing ribs 120, Figure 1 It can be seen that the base 12 is detachably connected to the upper and lower ends of the support column 11 by being sleeved with the mounting groove formed therein, and the second connecting hole 1201 formed in the corresponding position of the base 12 is used for mounting and fixing the support seat on the corresponding position, in addition, the installation process of the first seat body 121 and the second seat body 122 at the upper and lower ends of the support seat can be carried out according to different installation requirements, such as Figure 7 The second connecting hole 1201 formed in the corresponding position of the seat body is used for detachable connection of a plurality of support columns 11, which meets different installation requirements, and the plurality of reinforcing ribs 120 arranged around the base 12 can further improve the structural strength of the base 12 and the support stability of the corresponding support column 11.

[0037] The bottom of the second seat body 122 placed at the bottom end of the support column 11 is also provided with a sharp end structure 123, and it can be seen from Figure 2 The support column 11 is installed and fixed by the second seat body 122 at the bottom end, and the sharp end structure 123 provided at the bottom of the second seat body 122 is used for corresponding installation and insertion into the ground, which is suitable for different installation environments and further improves the support stability of the second seat body 122 on the support column 11.

[0038] The above description in the specification is only an example of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, as long as they do not deviate from the content of the specification or exceed the scope defined by the claims, and should belong to the protection scope of the present application.

Claims

1. A construction pit support structure for an urban underground station, characterized by: The utility model provides a pile and support structure arranged on the pile, the support structure comprises a mounting base slidingly arranged on the periphery of the pile, a support rod rotatably arranged on the mounting base and a support plate hingedly connected to one end of the support rod away from the mounting base, and a first locking member, a second locking member and a third locking member are respectively arranged on the mounting base, the support rod and the support plate at the connecting positions corresponding to the pile, the mounting base and the support rod.

2. The urban underground station construction excavation support structure according to claim 1, characterized in that: The support structure and the support rod and the support plate rotatably arranged on the corresponding mounting base are respectively provided with multiple groups.

3. The urban underground station construction excavation support structure according to claim 1, characterized in that: The mounting base is provided with multiple groups of pressing plates arranged around the mounting base, and the first locking member is rotatably arranged at the corresponding position of the mounting base and connected to the internal pressing plate.

4. The urban underground station construction excavation support structure according to claim 1, characterized in that: The support rod is detachably arranged on the mounting base through the connecting base rotatably arranged on the mounting base at the connecting position corresponding to the mounting base, and the second locking member is rotatably arranged on the connecting base.

5. The urban underground station construction excavation support structure according to claim 4, characterized in that: The connecting base is detachably arranged on the mounting base through the top cover detachably connected to the top of the mounting base.

6. The urban underground station construction excavation support structure according to claim 1, characterized in that: The support plate is detachably arranged on one end of the support rod through the connecting part arranged on the support plate and is provided in multiple groups in different shapes, and the connecting part comprises a second connecting base detachably arranged on the support plate, a third connecting rod rotatably arranged on the second connecting base and two third locking members rotatably arranged at the two ends of the third connecting rod.

7. The urban underground station construction excavation support structure according to claim 4, characterized in that: The support rod comprises a first connecting rod detachably connected to the connecting base and a second connecting rod slidingly arranged on the first connecting rod, and the support plate is arranged on the corresponding end of the second connecting rod through the connecting part arranged on the support plate, and the fourth locking member is arranged at the sliding connection between the first connecting rod and the second connecting rod.

8. The urban underground station construction excavation support structure according to claim 2, characterized in that: Multiple support rods are arranged between the adjacent support structures on the upper and lower sides of the pile, and the two ends of the support rod are connected through the connecting holes formed at the corresponding positions of the first connecting rod.

9. The urban underground station construction excavation support structure according to claim 2, characterized in that: The pile comprises a support column and a base, the support structure is arranged on the support column, the base is provided with a first seat and a second seat detachably connected to the upper and lower ends of the support column, and multiple reinforcing ribs are arranged around the base, and the second connecting holes are formed in the bottom seat between the adjacent reinforcing ribs.

10. The urban underground station construction excavation support structure according to claim 9, characterized in that: The bottom of the second seat arranged at the bottom end of the support column is further provided with a pointed end structure.

Images