CN218562358U

CN218562358U - Shield constructs well supporting device that starts

Info

Publication number: CN218562358U
Application number: CN202222139875.2U
Authority: CN
Inventors: 赵云飞; 蒋宗全; 薛彦军; 周平; 王英俊; 刘震中; 靳利安; 赵炜; 周显刚; 李�瑞
Original assignee: Sichuan Nanjiao Tangchen Civil Engineering Technology Co ltd; Southwest Jiaotong University; Sinohydro Bureau 5 Co Ltd
Current assignee: Sichuan Nanjiao Tangchen Civil Engineering Technology Co ltd; Southwest Jiaotong University; Sinohydro Bureau 5 Co Ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2023-03-03
Anticipated expiration: 2032-08-15

Abstract

The utility model discloses a shield constructs well supporting device that originates relates to the excavation supporting field, including the support column, the both ends of support column can be dismantled respectively and be connected with the backup pad, the backup pad is kept away from the one end of support column is connected with the sleeve that leads to the heart to set up, the activity is provided with the activity post with sleeve activity adaptation in the sleeve, the activity post is kept away from the one end of sleeve is connected with the fixed plate, the movable shaft that the sleeve was dismantled and connected is kept away from to the fixed plate one end, the movable shaft is kept away from the fixed plate one end is provided with pre-buried sleeve pipe, pre-buried sleeve pipe is pre-buried in enclosing purlin concrete, the movable shaft is kept away from the movable shaft one end of fixed plate and is mobilizable to be arranged in pre-buried sleeve pipe's hollow cavity, and the fixed plate accessible bolt is connected with pre-buried sleeve pipe; and a movable structure used for driving a movable shaft connected to the fixed plate to move along the hollow cavity of the embedded sleeve is arranged between the fixed plate and the supporting plate.

Description

Shield constructs well supporting device that starts

Technical Field

The utility model relates to a excavation supporting field specifically is a well supporting device is originated in shield structure construction.

Background

In the shield construction process, a shield starting well needs to be excavated in a designed section so as to facilitate hoisting and dismounting of the shield hoisting machine. Because the shield tunneling machine excavation is generally performed underground, and an excavated starting well belongs to a deep foundation pit, the excavated starting well and an excavated receiving well need to be supported so as to facilitate the safety of construction. And the starting well is deeper in excavation depth, and concrete support needs to be poured while excavation is carried out. The existing deep foundation pit supporting method for excavation is various, and what is commonly used is that in the excavated foundation pit, a steel pipe support is adopted to support the side wall of the excavated foundation pit and used for supporting a template of a retaining soil body, then supporting structures such as concrete are poured, and after the steel pipe support is disassembled after the supported concrete reaches the specified strength, downward excavation can be continued, so that a large amount of time is needed to be spent on building the support in the supporting process, and a large amount of time is needed to be spent on maintaining and disassembling the steel pipe support, so that the construction period is easily delayed, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a well supporting device is originated in shield construction, the device are used for strutting the shield structure foundation ditch of well excavation, can strut the foundation ditch through the device, and to the continuation excavation of foundation ditch when not influencing strutting, can save time, are favorable to accelerating the progress of engineering.

The purpose of the utility model is realized through the following technical scheme:

a supporting device for a shield construction starting well comprises a supporting column, wherein supporting plates are detachably connected to two ends of the supporting column respectively, one end, away from the supporting column, of each supporting plate is connected with a sleeve which is arranged in a through manner, a movable column which is movably matched with the sleeve is movably arranged in the sleeve, one end, away from the sleeve, of each movable column is connected with a fixed plate, one end, away from the sleeve, of each fixed plate is detachably connected with a movable shaft, one end, away from the fixed plate, of each movable shaft is provided with a pre-buried sleeve, the pre-buried sleeves are pre-buried in surrounding purlin concrete, one end, away from the fixed plate, of each movable shaft is movably arranged in a hollow cavity of the corresponding pre-buried sleeve, and the fixed plates can be connected with the pre-buried sleeves through bolts;

and a movable structure used for driving a movable shaft connected to the fixed plate to move along the hollow cavity of the embedded sleeve is arranged between the fixed plate and the supporting plate.

Preferably, the movable structure is provided with two and equipartition settings in telescopic both sides, the movable structure all includes the hydraulic stem, the one end of hydraulic stem with the fixed plate is connected, the other end of hydraulic stem with the backup pad is connected.

Preferably, the support column is connected with a connecting seat, connection limiting holes used for connecting an external support rod are formed in the periphery of the connecting seat, and a plurality of bolt connecting holes are formed in the periphery of the connecting seat.

Preferably, the fixed plate is provided with a connecting hole, and the movable shaft is in threaded connection with the connecting hole formed in the fixed plate.

Preferably, one end of the embedded sleeve close to the movable shaft is connected with a connecting disc, one end of the embedded sleeve far away from the connecting disc is connected with a limiting disc, the connecting disc, the limiting disc and the embedded sleeve are embedded in the poured concrete surrounding purlin together, and the connecting disc is connected with the fixing plate through bolts.

Preferably, the support column is arranged in a hollow manner, one end, close to the support column, of the support plate is connected with a limiting column, and one end, far away from the support plate, of the limiting column is arranged in a hollow cavity of the support column and used for limiting and fixing.

Preferably, the supporting columns are respectively connected with a flange plate at one end close to the supporting plate, and the supporting plate is connected with the flange plate through bolts.

The utility model has the advantages that: the device can be used for when shield structure is under construction, struts the reinforcement to the well of starting of excavation, can reduce the material and the joint of strutting the usefulness through the device, can conveniently realize quick supporting, struts the foundation ditch of well excavation of starting simultaneously through adopting the device, can continue excavation construction downwards under the condition that the device was strutted and is not demolishd, can accelerate the progress of construction. The device comprises a supporting column in the overall design, wherein the designed supporting column is used as a main stressed component of the support; meanwhile, the two ends of the supporting column are respectively detachably connected with the supporting plate, and the supporting plates are detachably connected with the supporting column, so that lengthening can be conveniently realized, adaptation to starting wells with different widths is facilitated, the supporting column and the supporting plates are conveniently detached and installed, and the supporting column can be recovered and installed again for use; the one end of keeping away from the support column at the backup pad is connected with the sleeve that leads to the heart to set up in addition, the activity is provided with the movable post with sleeve activity adaptation in the sleeve, and, be provided with the movable structure that is used for driving the loose axle of being connected on the fixed plate along the removal in pre-buried sheathed tube hollow cavity, the pre-buried sleeve pipe of setting is pre-buried in enclosing the concrete that the purlin was pour, the loose axle that the support column both ends set up respectively is arranged in the pre-buried sleeve pipe of one side separately, the rethread is adjusted movable structure and is driven the loose axle and move towards the pre-buried sheathed tube hollow cavity that sets up of one side separately, let the fixed plate support and lean on in enclosing the purlin on the surface, realize enclosing the purlin and supporting the soil body around the purlin, carry out fixed connection with fixed plate and pre-buried sleeve pipe through the bolt afterwards, and then realize fixing the device stably, make things convenient for machinery continues to excavate downwards, guarantee the safety of construction. From the device overall design, the device is used for strutting the shield and constructs the foundation ditch of starting well excavation, can strut the foundation ditch through the device, and does not influence the continuation excavation to the foundation ditch when strutting, can save time, is favorable to accelerating the progress of engineering.

Drawings

Fig. 1 is a schematic structural view of the support device for the shield construction starting well of the present invention;

fig. 2 is an exploded view of a structural part of the support device of the shield construction starting well of the present invention;

fig. 3 is a schematic diagram of a supporting column structure of the supporting device for the shield construction starting well of the present invention;

fig. 4 is a schematic view of a connection structure between a pre-buried sleeve and a fixing plate of the support device for the shield construction starting well of the utility model;

fig. 5 is an exploded view of a connecting structure part of a pre-buried sleeve and a fixing plate of the support device for the starting well in shield construction of the utility model;

in the figure, 1-supporting column, 2-supporting plate, 3-movable column, 4-embedded sleeve, 11-connecting seat, 12-flange plate, 21-sleeve, 22-hydraulic rod, 31-fixing plate, 32-movable shaft, 41-connecting disc and 42-limiting disc.

Detailed Description

In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention. It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

As shown in fig. 1 to 5, a shield construction starting well supporting device includes a supporting column 1, two ends of the supporting column 1 are detachably connected with supporting plates 2 respectively, one end of the supporting plate 2, which is far away from the supporting column 1, is connected with a sleeve 21 which is arranged through the center, a movable column 3 which is movably matched with the sleeve 21 is movably arranged in the sleeve 21, one end of the movable column 3, which is far away from the sleeve 21, is connected with a fixing plate 31, one end of the fixing plate 31, which is far away from the sleeve 21, is detachably connected with a movable shaft 32, one end of the movable shaft 32, which is far away from the fixing plate 31, is provided with a pre-buried sleeve 4, the pre-buried sleeve 4 is pre-buried in surrounding purlin concrete, one end of the movable shaft 32, which is far away from the fixing plate 31, is movably arranged in a hollow cavity of the pre-buried sleeve 4, and the fixing plate 31 can be connected with the pre-buried sleeve 4 through a bolt; a movable structure for driving the movable shaft 32 connected to the fixed plate 31 to move along the hollow cavity of the embedded sleeve 4 is arranged between the fixed plate 31 and the support plate 2.

The device can be used for when shield structure is under construction, struts the reinforcement to the well of starting of excavation, can reduce the material and the joint of strutting the usefulness through the device, can conveniently realize quick supporting, struts the foundation ditch of well excavation of starting simultaneously through adopting the device, can continue excavation construction downwards under the condition that the device was strutted and is not demolishd, can accelerate the progress of construction. The device comprises a supporting column 1 in the overall design, wherein the designed supporting column 1 is used as a main stress component for supporting; meanwhile, the supporting plates 2 are detachably connected to the two ends of the supporting column 1 respectively, and the supporting plates 2 are detachably connected with the supporting column 1, so that lengthening can be conveniently realized, adaptation to starting wells with different widths is facilitated, the supporting column 1 and the supporting plates 2 are conveniently detached and installed, and the supporting columns can be recovered and installed again for use; the one end of keeping away from support column 1 at backup pad 2 is connected with the sleeve 21 that leads to the heart setting in addition, the activity is provided with the movable post 3 with sleeve 21 activity adaptation in sleeve 21, and, be provided with between fixed plate 31 and the backup pad 2 and be used for driving the loose axle 32 of being connected on fixed plate 31 along the movable structure of the hollow cavity internal migration of buried sleeve 4, buried sleeve 4 that sets up is pre-buried in enclosing the concrete that the purlin was pour, loose axle 32 that the both ends of support column 1 set up respectively arranges in the buried sleeve 4 of one side separately, rethread adjusts movable structure and drives loose axle 32 and remove towards the hollow cavity of buried sleeve 4 that one side set up separately, let fixed plate 31 support and lean on and enclose purlin on the surface, realize strutting enclosing purlin and enclosing the soil body around the purlin, carry out fixed connection with fixed plate 31 and buried sleeve 4 through the bolt afterwards, and then realize fixing the device stably, make things convenient for machinery continues excavation downwards, guarantee the safety of construction.

Further, when the device is used for supporting a starting well excavated by shield construction, namely, an excavated foundation pit is excavated, after a certain depth is excavated, concrete is sprayed on the peripheral side wall of the excavated foundation pit, a circle of purlin reinforcement cage is bound around the excavated foundation pit, the pre-embedded sleeve 4 matched with the device for use is pre-embedded at a position suitable for the purlin reinforcement cage, in order to ensure stability, a connecting disc 41 is connected to one end of the pre-embedded sleeve 4 close to the movable shaft 32, a limiting disc 42 is connected to one end of the pre-embedded sleeve 4 far away from the connecting disc 41, the connecting disc 41 and the limiting disc 42 are pre-embedded in the poured purlin concrete together with the pre-embedded sleeve 4, the overall connectivity is improved, in the process of pouring the purlin concrete, one end opening of each pre-embedded sleeve 4 close to the inside of the foundation pit is sealed by foam, one end face of the connecting disc 41 is made to have a certain thickness, the poured concrete is prevented from entering the pre-embedded sleeve 4 to block, the connecting disc 41 is connected with the fixing plate 31 conveniently, and the drilling time and the cost is saved. When concrete pouring is carried out on an enclosing purlin steel reinforcement framework of a foundation pit, the arranged embedded sleeves 4 and the concrete of the enclosing purlin are integrated, then the supporting columns 1 are customized according to the width of the foundation pit, a proper number of supporting columns 1 are selected according to the length of each supporting column 1 to be connected together to form a large supporting column, the large supporting column is used for horizontally supporting two side walls of the foundation pit, and the supporting columns 1 are arranged in a hollow mode to adapt to different environments due to the fact that different widths of the foundation pits are considered, so that the weight of the supporting columns 1 is reduced, meanwhile, one ends, close to the supporting plates 2, of the supporting columns 1 are respectively connected with flange plates 12, and the flange plates 12 arranged at one ends, needing to be connected, of the supporting columns 1 are connected together through bolts; and then one end of the support column 1 of the end head close to the side wall of the foundation pit is respectively connected with the upper support plate 2 so as to realize the adjustment of the support, and in consideration of the stability and the quality of the connection, a limit shaft can be welded at one end of the support plate 2 close to the support column 1, and the other end of the limit shaft is arranged in the hollow cavity of the support column 1, so that the overall stability and the connection quality are improved.

Furthermore, during design, one end of the supporting plate 2 of the device, which is close to the supporting column 1, is connected with a limiting column 23, and one end of the limiting column 23, which is far away from the supporting plate 2, is arranged in the hollow cavity of the supporting column 1 and is used for limiting and fixing; the limiting column 23 is arranged in a hollow cavity of the support column 1, the support plate 2 is connected with a flange plate arranged at the end of the support column 1 through a bolt, and then the support column and the flange plate are connected into a whole, then the whole support column which is connected and assembled is lifted through a hoisting machine, and the movable structure arranged at two ends is manually adjusted, so that the movable shaft 32 is driven to align and stretch into the embedded sleeve 4 for supporting. In the implementation process, the foam blocked at the end part of the embedded sleeve 4 and the concrete slurry on the surface of the connecting disc 41 are cleaned, so that the alignment connection is realized; meanwhile, two movable structures are arranged and uniformly distributed on two sides of the sleeve 21, each movable structure comprises a hydraulic rod 22, one end of each hydraulic rod 22 is connected with the fixing plate 31, and the other end of each hydraulic rod 22 is connected with the supporting plate 2; the two hydraulic rods 22 arranged at the respective ends are respectively controlled to extend to respectively drive the fixing plates 31 to move towards the side wall of the foundation pit, the movable columns 3 arranged at the moment move along the inner wall of the sleeve 21, the movable shafts 32 detachably connected with the other end faces of the fixing plates 31 are driven to extend into the embedded sleeves 4 respectively embedded in the concrete of the enclosing purlin at the two ends until the fixing plates 31 at the two ends are respectively abutted against the connecting discs 41 respectively leaking on the outer surfaces of the concrete of the enclosing purlin at one side, and then the fixing plates 31 at the two ends are respectively connected and fixed with the connecting discs 41 by bolts to form a whole, so that the enclosing purlins at the two sides of the foundation pit and the soil outside the enclosing purlins are horizontally supported; in order to support stably, the fixing plate 31 of the device is provided with a connecting hole, the movable shaft 32 is in threaded connection with the connecting hole formed in the fixing plate 31, so that the movable shaft 32 with different lengths can be selected according to different embedded sleeves 4, the movable shaft 32 can stretch into the bottom end abutting against the inside of the embedded sleeve 4, the fixing plate 31 is abutted against the connecting disc 41, and the supporting stability can be realized through the existing mode.

Further, in order to stabilize the support and the safety, the device is also connected with a connecting seat 11 on the support column 1, a connection limiting hole for connecting an external support rod is formed around the connecting seat 11, and a plurality of bolt connecting holes are formed around the connecting seat 11, so that the design aims at stabilizing and supporting the foundation pit by respectively arranging two ends of the external support rod in the limiting holes formed in the connecting seat 11 between the support column levels of the two horizontal supports and penetrating the bolt connecting holes formed in the connecting seat 11 through bolts to stably connect the external support rod and the support column into a whole for stably supporting the foundation pit; in order to ensure that the support can be stably supported in the vertical direction, one end of the connecting seat 11 close to the bottom of the foundation pit can be connected with an external vertical supporting rod, the other end of the external supporting rod is supported at the bottom of the foundation pit for supporting, when downward excavation is continued, excavation is temporarily not performed on the external vertical supporting rod, an excavation machine continues to be constructed below a gap of the device, when excavation is continued to be performed to a certain depth, concrete is sprayed to the side wall of the foundation pit for maintaining for a certain time, then the soil body of the foundation pit at the position is excavated and removed, and the next part of the excavated foundation pit is supported by the device; and (5) excavating and constructing downwards in sequence. In the implementation process, taking the starting well as an example, the device can also be used for foundation pit support during other shield construction such as a receiving well of a shield. The device is used for supporting the foundation pit excavated by the shield starting well, the foundation pit can be supported by the device, the continuous excavation of the foundation pit is realized while the support is not influenced, the time can be saved, and the progress of engineering can be accelerated.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the embodiments in the above description, and the technical concept of the present invention can be within the scope of the present invention, and can be modified to various simple modifications, and these simple modifications all belong to the protection scope of the present invention. It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features. In addition, the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention; meanwhile, the various embodiments of the present invention can be combined arbitrarily, so long as it does not violate the idea of the present invention, it should be regarded as the disclosure of the present invention.

Claims

1. The shield starting well supporting device is characterized by comprising a supporting column (1), wherein two ends of the supporting column (1) are respectively detachably connected with a supporting plate (2), one end, far away from the supporting column (1), of the supporting plate (2) is connected with a sleeve (21) which is arranged in a through manner, a movable column (3) which is movably matched with the sleeve (21) is movably arranged in the sleeve (21), one end, far away from the sleeve (21), of the movable column (3) is connected with a fixed plate (31), one end, far away from the sleeve (21), of the fixed plate (31) is detachably connected with a movable shaft (32), one end, far away from the fixed plate (31), of the movable shaft (32) is provided with an embedded sleeve (4), the embedded sleeve (4) is embedded in concrete surrounding purlin, one end, far away from the fixed plate (31), of the movable shaft (32) is movably arranged in a hollow cavity of the embedded sleeve (4), and the fixed plate (31) can be connected with the embedded sleeve (4) through bolts;

a movable structure used for driving a movable shaft (32) connected to the fixed plate (31) to move along the hollow cavity of the embedded sleeve (4) is arranged between the fixed plate (31) and the supporting plate (2).

2. The shield starting well support device according to claim 1, wherein the movable structure is provided with two and evenly distributed at two sides of the sleeve (21), the movable structure comprises hydraulic rods (22), one end of each hydraulic rod (22) is connected with the fixing plate (31), and the other end of each hydraulic rod (22) is connected with the supporting plate (2).

3. The shield starting well supporting device according to claim 1, wherein the supporting column (1) is connected with a connecting seat (11), a connecting limiting hole for connecting an external supporting rod is formed in the periphery of the connecting seat (11), and a plurality of bolt connecting holes are formed in the periphery of the connecting seat (11).

4. The shield starting well support device according to claim 1, wherein the fixed plate (31) is provided with a connecting hole, and the movable shaft (32) is in threaded connection with the connecting hole formed in the fixed plate (31).

5. The shield starting well supporting device according to claim 1, wherein one end, close to the movable shaft (32), of the embedded sleeve (4) is connected with a connecting disc (41), one end, far away from the connecting disc (41), of the embedded sleeve (4) is connected with a limiting disc (42), the connecting disc (41), the limiting disc (42) and the embedded sleeve (4) are embedded in poured surrounding purlin concrete together, and the connecting disc (41) is connected with the fixing plate (31) through bolts.

6. The shield starting well supporting device according to claim 1, wherein the supporting columns (1) are arranged in a through manner, one ends, close to the supporting columns (1), of the supporting plates (2) are connected with limiting columns (23), and one ends, far away from the supporting plates (2), of the limiting columns (23) are arranged in hollow cavities of the supporting columns (1) and used for limiting and fixing.

7. The shield starting well support device according to claim 6, wherein one end of the support column (1) close to the support plate (2) is respectively connected with a flange (12), and the support plate (2) is connected with the flange (12) through bolts.