阅读说明：本技术 沟槽后支护体系 (Support system behind slot ) 是由 文杰 张彤炜 周书东 田锦虎 韩笑 杨秀坤 刘正刚 赵永涛 麦镇东 于 2019-08-27 设计创作，主要内容包括：本发明提供了一种沟槽后支护体系,用于对沟槽进行支护,包括侧挡结构及可伸缩支撑机构,两侧挡结构呈相对设置,侧挡结构均连接有用于带动其移动的移动机构,可伸缩支撑机构连接于两侧挡结构之间,借由可伸缩支撑机构伸长或收缩,以将两侧挡结构分别顶紧或释放于沟槽的两侧壁之间。可通过可伸缩支撑机构伸长,使得两侧挡结构朝相互远离的方向移动并顶紧于沟槽的两侧壁之间,从而对于沟槽开挖后的侧壁土体起支护加固作用；可通过可伸缩支撑机构收缩,带动两侧挡结构朝相互靠近的方向移动并释放于沟槽的两侧壁之间,从而可利用移动机构带动侧挡结构移动,即带动整个沟槽后支护体系在沟槽内移动,从而可变换沟槽后支护体系对沟槽支护的作业面。(The invention provides a groove rear supporting system which is used for supporting a groove and comprises side retaining structures and a telescopic supporting mechanism, wherein the side retaining structures are oppositely arranged, the side retaining structures are connected with a moving mechanism used for driving the side retaining structures to move, the telescopic supporting mechanism is connected between the two side retaining structures, and the telescopic supporting mechanism extends or contracts to tightly push or release the two side retaining structures between two side walls of the groove respectively. The telescopic supporting mechanism can extend to enable the two side retaining structures to move towards the direction away from each other and tightly prop against the two side walls of the groove, so that the side wall soil body after the groove is excavated is supported and reinforced; the telescopic supporting mechanism of the accessible contracts to drive the two side retaining structures to move towards the direction close to each other and release between the two side walls of the groove, so that the side retaining structures can be driven by the aid of the movable mechanism to move, the whole groove is driven, the protection system moves in the groove, and the operation surface of the groove support system can be changed after the groove.)

1. The utility model provides a system is strutted behind slot for strut the slot, its characterized in that, including side retaining structure and scalable supporting mechanism, two side retaining structure is relative setting, side retaining structure all is connected with and is used for driving its moving mechanism that removes, scalable supporting mechanism connects in two between the side retaining structure, borrow by scalable supporting mechanism extension or shrink, with two side retaining structure push up tightly respectively or release in between the both sides wall of slot.

2. The rear support system of claim 1, wherein the retractable support mechanism comprises a first support rod, a second support rod and a rotary adjusting member, one end of the first support rod is connected with one of the side retaining structures, the other end of the first support rod is in threaded connection with one end of the rotary adjusting member, one end of the second support rod is connected with the other side retaining structure, and the other end of the second support rod is in threaded connection with the other end of the rotary adjusting member; the rotating adjusting piece rotates, so that the first supporting rod and the second supporting rod move, extend or contract relative to the rotating adjusting piece.

3. The post-groove support system according to claim 2, wherein the direction of the helical thread of the first support bar is opposite to the direction of the helical thread of the second support bar.

4. The rear groove support system of claim 2, wherein the rotation adjusting member is provided with a rotation handle for driving the rotation adjusting member to rotate.

5. The rear trench support system of claim 1 wherein the side dam structure includes columns and side wall shields connected between the columns.

6. The post-trench support system of claim 5, wherein the connection between the sidewall shields and the columns is a detachable connection.

7. The rear trench support system of claim 5 wherein said sidewall shield has an operating handle.

8. The rear groove support system according to claim 5, wherein the lower end of the upright is provided with a cutting edge.

9. The rear groove support system according to claim 5, wherein the number of the side wall protecting plates is several, and the several side wall protecting plates are sequentially arranged along the length direction of the two columns.

10. The rear groove support system according to claim 1, wherein the moving mechanism includes a connecting member connected to the side blocking structure and a traveling wheel pivotally connected to the connecting member.

11. The rear groove support system of claim 10, wherein the connector is slidably disposed to the side dam.

12. The groove rear support system according to claim 11, wherein the connecting member includes a sliding portion and a connecting portion connected to the sliding portion, the sliding portion is slidably and adjustably disposed on the side blocking structure, and the traveling wheel is pivotally connected to the connecting portion.

13. The rear support system of claim 12, further comprising a positioning pin, wherein the sliding portion is provided with a first insertion hole, the side shield structure is provided with a plurality of second insertion holes, and the positioning pin is inserted into the first insertion hole and one of the second insertion holes to position the moving mechanism on the side shield structure.

14. The rear groove support system according to claim 11, wherein a driving mechanism is provided between the side retaining structure and the connecting member, and the driving mechanism can drive the connecting member to slide relative to the side retaining structure.

15. The after-trench support system of claim 14, wherein the drive mechanism is a hydraulic ram.

16. The rear groove support system of claim 10, wherein the moving mechanism further comprises a sliding adjuster slidably and adjustably disposed on the connecting member, the road wheel being pivotally connected to the sliding adjuster.

Technical Field

The invention relates to the technical field of building construction, in particular to a groove rear supporting system.

Background

Vertical excavation is a common excavation mode, and inevitably needs constructors to go down to the straight wall trench for operation, and when the trench excavation depth is large, collapse and landslide accidents caused by trench wall instability are easy to occur, and the safe construction operation is influenced to a certain extent. To protect the constructors from the damage of the landslide or collapse of the trench wall, the trench working surface needs a safe and applicable trench supporting system. At present, the existing box-type rear supporting structure is less applied to groove excavation construction, the main mode adopts natural slope, soil nail reinforcement, straight groove type grooves such as channel steel or steel sheet piles, reinforced concrete row piles and the like, and the methods generally have the following problems: firstly, the manufacturing cost is high; secondly, the self width and the use length cannot be changed, so that the application range is limited; thirdly, the construction time is long; and fourthly, the groove box is used for supporting, but the groove box supports the groove at a fixed position, so that the movement inside the groove cannot be realized, and the requirements of excavation and supporting under different conditions are difficult to meet.

Disclosure of Invention

The invention aims to provide a movable groove rear support system with adjustable support width.

In order to achieve the above object, the present invention provides a rear supporting system for a trench, which is used for supporting the trench, and includes two side retaining structures and a telescopic supporting mechanism, wherein the two side retaining structures are oppositely disposed, the side retaining structures are both connected with a moving mechanism for driving the side retaining structures to move, the telescopic supporting mechanism is connected between the two side retaining structures, and the telescopic supporting mechanism extends or contracts to respectively prop or release the two side retaining structures between two side walls of the trench.

Preferably, the telescopic supporting mechanism comprises a first supporting rod, a second supporting rod and a rotary adjusting piece, one end of the first supporting rod is connected with one of the side blocking structures, the other end of the first supporting rod is in threaded connection with one end of the rotary adjusting piece, one end of the second supporting rod is connected with the other of the side blocking structures, and the other end of the second supporting rod is in threaded connection with the other end of the rotary adjusting piece; the rotating adjusting piece rotates, so that the first supporting rod and the second supporting rod move, extend or contract relative to the rotating adjusting piece.

Preferably, the screw thread direction of the first support bar is opposite to that of the second support bar.

Preferably, the rotation adjusting member is provided with a rotation handle for driving the rotation adjusting member to rotate.

Preferably, the side blocking structure comprises two upright posts and a side wall guard plate, and the side wall guard plate is connected between the two upright posts.

Preferably, the connection between the side wall guard plate and the upright post is detachable.

Preferably, the side wall guard plate is provided with an operating handle.

Preferably, the lower end of the upright post is provided with a cutting edge.

Preferably, the number of the side wall guard plates is a plurality, and the side wall guard plates are sequentially arranged along the length direction of the two upright posts.

Preferably, the moving mechanism comprises a connecting piece and a walking wheel, the connecting piece is connected with the side blocking structure, and the walking wheel is pivoted on the connecting piece.

Preferably, the connecting member is slidably disposed on the side blocking structure.

Preferably, the connecting piece includes sliding part and with the connecting portion that sliding part is connected, sliding part slidable adjustment ground set up in the side keeps off the structure, the walking wheel pin joint in connecting portion.

Preferably, the side blocking structure further comprises a positioning pin, a first jack is arranged on the sliding portion, a plurality of second jacks are arranged on the side blocking structure, and the positioning pin is inserted into the first jack and one of the second jacks to position the moving mechanism on the side blocking structure.

Preferably, a driving mechanism is arranged between each side blocking structure and each connecting piece, and the driving mechanism can drive each connecting piece to slide relative to each side blocking structure.

Preferably, the driving mechanism is a hydraulic oil cylinder.

Preferably, the moving mechanism further comprises a sliding adjusting piece, the sliding adjusting piece is slidably and adjustably arranged on the connecting piece, and the walking wheel is pivoted on the sliding adjusting piece.

Compared with the prior art, the rear protection system for the groove is provided with the telescopic supporting mechanism between the two side retaining structures, so that the two side retaining structures can move towards the direction away from each other and tightly prop against the two side walls of the groove by the extension of the telescopic supporting mechanism, the soil body on the side wall after the groove is excavated is supported and reinforced, and a safe and reliable operation environment is provided for constructors; the side retaining structures are connected with the moving mechanisms for driving the side retaining structures to move, the telescopic supporting mechanisms can be contracted to drive the two side retaining structures to move towards the mutually approaching direction and release the two side retaining structures between the two side walls of the groove, so that the side retaining structures can be driven to move by the moving mechanisms, namely, the whole groove rear supporting system is driven to move in the groove, and the operation surface of the groove rear supporting system for supporting the groove can be changed.

Drawings

Fig. 1 is a schematic perspective view of the rear groove support system of the present invention.

Fig. 2 is a side view of the post-groove timbering system of fig. 1.

Fig. 3 is a front view of the post-groove timbering system of fig. 1.

Fig. 4 is a schematic view of a portion of the structure of the post location of the post-trench support system of the present invention.

Fig. 5 is a sectional view taken along a-a in fig. 4.

Fig. 6 is a schematic structural diagram of the moving mechanism and the side blocking structure of the rear groove supporting system.

Fig. 7 is a schematic structural view of a first side shield structure of the rear groove support system of the present invention.

Fig. 8 is a schematic view of a second side shield structure of the rear groove support system of the present invention.

Fig. 9 is a schematic structural view of the post-trench timbering system of the present invention after being hoisted to the trench.

Fig. 10 is a schematic view of the construction of the post-trench retaining system of the present invention retaining the sidewalls of a trench.

Figure 11 is a schematic view of the ground with the road wheels of the post-groove support system of the present invention lowered to the ground.

FIG. 12 is a schematic diagram of the raised post-trench protection system of the present invention.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

Referring to fig. 1 to 3, the rear trench supporting system 100 of the present invention is used for supporting a trench 200, and includes side retaining structures 1 and a retractable supporting mechanism 2, wherein the side retaining structures 1 are disposed opposite to each other, the side retaining structures 1 are both connected to a moving mechanism 3 for driving the side retaining structures to move, the retractable supporting mechanism 2 is connected between the side retaining structures 1, and the retractable supporting mechanism 2 is extended or retracted to respectively prop or release the side retaining structures 1 between two sidewalls of the trench 200. The telescopic supporting mechanism 2 can extend to enable the two side retaining structures 1 to move towards the direction away from each other and tightly prop against the two side walls of the groove 200, so that the side wall soil body excavated by the groove 200 is supported and reinforced, and a safe and reliable operation environment is provided for constructors; the retractable supporting mechanism 2 can be retracted to drive the two side retaining structures 1 to move towards the direction close to each other and release between the two side walls of the groove 200, so that the side retaining structures 1 can be driven to move by the movable mechanism 3, that is, the whole groove rear supporting system 100 is driven to move in the groove 200, and the operation surface of the groove rear supporting system 100 for supporting the groove 200 can be changed. More specifically, the following:

referring to fig. 1 and 3, in the present embodiment, the retractable supporting mechanism 2 includes a first supporting rod 21, a second supporting rod 22 and a rotating adjusting member 23, one end of the first supporting rod 21 is connected to one of the side blocking structures 1, the other end of the first supporting rod 21 is in threaded connection with one end of the rotating adjusting member 23, one end of the second supporting rod 22 is connected to the other side blocking structure 1, and the other end of the second supporting rod 22 is in threaded connection with the other end of the rotating adjusting member 23; the rotation adjusting member 23 is rotated to move the first supporting rod 21 and the second supporting rod 22 relative to the rotation adjusting member 23 for extension or contraction. The screw thread direction of the first support rod 21 is opposite to the screw thread direction of the second support rod 22, and the rotation adjusting member 23 is sleeved on the first support rod 21 and the second support rod 22, but not limited thereto, the first support rod 21 and the second support rod 22 may also be sleeved on the rotation adjusting member 23. Specifically, the rotation adjusting member 23 is provided with a rotation handle 231 for driving the rotation adjusting member to rotate, so that a constructor can drive the rotation adjusting member 23 to rotate by operating the rotation handle 231, and thus the first support rod 21 and the second support rod 22 are driven to move, extend or contract relative to the rotation adjusting member 23. The structure of the retractable supporting mechanism 2 is not limited in this embodiment, and in other embodiments, for example, the retractable supporting mechanism 2 may adopt two fixedly disposed retractable cylinders, and the retractable cylinders extend and retract to drive the two side retaining structures 1 to move, so that the two side retaining structures 1 are respectively tightly pressed against or released between two side walls of the groove 200.

Referring to fig. 2, fig. 4 and fig. 5, in the present embodiment, the side blocking structure 1 includes upright columns 11 and a sidewall protection plate 12, and the sidewall protection plate 12 is connected between the two upright columns 11. Specifically, the side wall guard plate 12 is detachably connected with the upright posts 11, the side wall guard plate 12 is provided with an operating handle 121, and the side wall guard plate 12 is conveniently installed between the two upright posts 11 by operating the operating handle 121; the lower end of the upright post 11 is provided with a cutting edge 111, and the cutting edge 111 is arranged, so that the groove rear support system 100 can be conveniently cut into the soil under the action of self weight, and the stability of the groove rear support system 100 in supporting the groove 200 is improved; lifting lugs 112 are arranged on the upright columns 11, and lifting equipment can lift the groove rear support system 100 into the groove 200 by pulling the lifting lugs 112 on the upright columns 11; a guide rail 114 is arranged in the length direction of the upright post 11, and the side wall guard plate 12 is correspondingly arranged on the guide rail 114; the number of the upright posts 11 is four, but not limited thereto. The number of the side wall guard plates 12 is a plurality, and the side wall guard plates 12 are sequentially arranged along the length direction of the two vertical columns 11; as shown in fig. 7 and 8, the sidewall protection plate 12 includes a first sidewall protection plate 122 and a second sidewall protection plate 123, the first sidewall protection plate 122 and the second sidewall protection plate 123 are respectively detachably connected between the two vertical columns 11, both the first sidewall protection plate 122 and the second sidewall protection plate 123 are provided with an operating handle 121, initially, the first sidewall protection plate 122 may be installed between the two vertical columns 11, after the whole trench rear support system 100 is hung into the trench 200 and supports the inner wall of the trench 200, each second sidewall protection plate 123 may be sequentially arranged above the first sidewall protection plate 122 along the length direction of the two vertical columns 11 along with the excavation of the trench 200 and the descending of the trench rear support system 100, so as to support the inner wall of the trench 200. However, the structure of the side retaining structure 1 is not limited to this, and in other embodiments, the side retaining structure 1 may be directly supported by an existing baffle plate, such as a steel plate.

Referring to fig. 3, 4 and 6, the moving mechanism 3 includes a connecting member 31 and a walking wheel 32, the connecting member 31 is connected to the side blocking structure 1, and the walking wheel 32 is pivoted on the connecting member 31. In the present embodiment, the connecting member 31 is slidably disposed on the side stop structure 1. The connecting member 31 includes a sliding portion 311 and a connecting portion 312 connected to the sliding portion 311, the sliding portion 311 is slidably and adjustably disposed on the side blocking structure 1, and the traveling wheel 32 is pivotally connected to the connecting portion 312. Specifically, the rear groove support system 100 of the present invention further includes a positioning pin 33, the sliding portion 311 is provided with a first insertion hole 311a, the side retaining structure 1 is provided with a plurality of second insertion holes 113, and the positioning pin 33 is inserted into the first insertion hole 311a and one of the second insertion holes 113 to position the moving mechanism 3 on the side retaining structure 1. When the moving mechanism 3 needs to be driven to slide relative to the upright post 11, the positioning latch 33 can be removed from the first insertion hole 311a and the second insertion hole 113, so as to unlock the moving mechanism 3, and the sliding portion 311 of the moving mechanism 3 can slide relative to the upright post 11. When the two side retaining structures 1 are respectively released between the two side walls of the groove 200, the travelling wheels 32 of the moving mechanism 3 can be used for driving the whole groove rear support system 100 to move in the groove 200, so that the working surface of the groove rear support system 100 for supporting the groove 200 can be changed. More specifically, the moving mechanism 3 further comprises a sliding adjusting member 34, the sliding adjusting member 34 is slidably and adjustably disposed on the connecting member 31, and the traveling wheels 32 are pivotally connected to the sliding adjusting member 34. The sliding adjuster 34 is provided with a bolt 341, and the sliding adjuster 34 is locked or unlocked to the connecting portion 312 of the connecting member 31 by rotating the bolt 341. Wherein, a plurality of through holes for inserting or withdrawing the bolts 341 may be provided on the connecting member 31. The sliding adjustment member 34 slides to adjust the position of the travel wheels 32, thereby preventing the travel wheels 32 from falling into the groove 200 without landing on the ground when they are lowered. The cross section of the sliding adjusting member 34 can be larger than the connecting portion 312, and the matching bolt 341 has a certain fine adjustment space, so that the positioning pin 33 can adapt to different heights of the first insertion hole 311a and the second locking hole. It should be noted that the structure of the moving mechanism 3 is not limited to this, and in other embodiments, for example, the moving mechanism 3 may also adopt a manner of matching a motor, a reducer, a transmission rod and the traveling wheels 32.

Referring to fig. 3 and 4, in order to facilitate the sliding portion 311 of the driving structure to slide relative to the pillar 11, a driving mechanism 4 is disposed between the side stop structure 1 and the connecting member 31, and the driving mechanism 4 can drive the connecting member 31 to slide relative to the side stop structure 1. Specifically, one end of the driving mechanism 4 is connected to the middle part of the upright post 11, and the other end of the driving mechanism 4 is connected to the sliding part 311 of the connecting piece 31, so that the driving mechanism 4 can extend and contract, and the moving mechanism 3 can be driven to slide relative to the upright post 11 of the side blocking structure 1; after the groove rear support system 100 is hung to the groove 200 and supports the groove 200, when the travelling wheels 32 of the moving mechanism 3 are not grounded, the side blocking structure 1 is not moved, and the driving mechanism 4 stretches and retracts to drive the sliding part 311 of the moving mechanism 3 to slide along the upright post 11; after the travelling wheels 32 of the moving mechanism 3 are grounded, the moving mechanism 3 is kept still, and the driving mechanism 4 is contracted to lift the side blocking structure 1 and the telescopic supporting mechanism 2 upwards together. In the present embodiment, the driving mechanism 4 is a hydraulic cylinder, but not limited to this, and a conventional telescopic cylinder or the like may be used. The number of the driving mechanisms 4 is the same as that of the moving mechanisms 3, in this embodiment, four moving mechanisms 3 are provided, four moving mechanisms 3 are respectively provided on the four columns 11, and four driving mechanisms 4 are also provided correspondingly.

With reference to fig. 9 to 12, the concrete construction principle of the post-groove timbering system 100 of the present invention is as follows:

initially, assembling all parts to form the groove rear support system 100, and vertically excavating at a construction position without support to within 1 meter of depth to form a groove 200 (the soil of the groove 200 has better self-stability capacity); then, the groove rear support system 100 is lifted to the bottom of the groove 200 through a crane, and the rotating handle of the telescopic supporting mechanism 2 is rotated, so that the first supporting rod 21 and the second supporting rod 22 move and extend relative to the rotating adjusting piece 23, and the two side retaining structures 1 move towards the directions away from each other and are tightly propped against the two side walls of the groove 200, so that the side wall soil body excavated by the groove 200 is supported and reinforced; with the continuous excavation of the bottom of the trench 200, the rear trench supporting system 100 sinks, the lower layer reaches a certain height, and the second sidewall protection plates 123 are sequentially arranged above the first sidewall protection plates 122 along the length direction of the two vertical columns 11 until the excavation construction is completed. When the working surface of the groove 200 of the rear support system 100 needs to be changed, the positioning bolt 33 is detached from the first insertion hole 311a and the second insertion hole 113, so that the moving mechanism 3 is unlocked, the driving mechanism 4 acts and drives the sliding part 311 of the moving mechanism 3 to slide and slide along the upright post 11, the travelling wheel 32 of the moving mechanism 3 is grounded, and meanwhile, the sliding adjusting piece 34 can be driven to slide, so that the travelling wheel 32 is not sunk into the groove 200 in the descending process; rotating the rotating handle of the telescopic supporting mechanism 2 to make the first supporting rod 21 and the second supporting rod 22 move and contract relative to the rotating adjusting piece 23, so that the two side blocking structures 1 move towards the direction away from each other and are separated from the two side walls of the groove 200, and then placing a ladder stand at the supporting position to evacuate personnel and instruments; in order to ensure that the soil mass on the side wall of the groove 200 is balanced and stable in the lifting process of the post-groove supporting system 100, the post-groove supporting system 100 needs to be lifted and a foundation pit needs to be refilled, the side retaining structure 1 and the telescopic supporting mechanism 2 are lifted upwards together by the contraction of the driving mechanism 4 to a certain distance from the edge 111 to a predicted soil covering surface, after a backfilled soil body reaches the corresponding design height, the post-groove supporting system 100 is pulled manually to change the working surface, the supporting steps are repeated, and finally the whole operation of construction standard sections is completed, the post-groove supporting system 100 is lifted away from the foundation pit by a crane and is disassembled, recycled and reused.

In conclusion, as the telescopic supporting mechanism 2 is arranged between the two side retaining structures 1 of the groove rear supporting system 100, the telescopic supporting mechanism 2 can be extended, so that the two side retaining structures 1 move towards the direction away from each other and are tightly propped against the two side walls of the groove 200, a supporting and reinforcing effect is exerted on the side wall soil body excavated by the groove 200, a safe and reliable operation environment is provided for constructors, the vertical excavation of the earthwork is favorably realized, the construction earthwork excavation, the backfilling amount and the operation occupied area are obviously reduced, various problems that the excavation occupied area of the groove 200 is large, the supporting time is long, the backfilling quality cannot be guaranteed and the like are effectively solved, and the influence of construction operation on surrounding buildings, complex pipelines, social activities and the like is reduced; and because the side retaining structures 1 are connected with the moving mechanisms 3 for driving the side retaining structures to move, the telescopic supporting mechanisms 2 can be contracted to drive the two side retaining structures 1 to move towards the mutually approaching direction and release the side retaining structures between the two side walls of the groove 200, so that the side retaining structures 1 can be driven to move by the moving mechanisms 3, namely, the whole groove rear supporting system 100 is driven to move in the groove 200, and the operation surface of the groove rear supporting system 100 for supporting the groove 200 can be changed, therefore, the whole standard section groove 200 can be supported by one groove rear supporting system 100, and the supporting cost is greatly saved. The groove rear supporting system 100 can realize factory processing production, bulk part transportation and manual assembly on construction sites of parts, the assembly connection mode adopts bolts 341 connection and clamping groove connection, the installation workload is small, the related auxiliary equipment is commonly used, the assembly and disassembly are rapid and convenient, the process is simpler than the conventional vertical excavation supporting mode (soil nail reinforcement, channel steel or steel sheet piles, reinforced concrete row piles and the like), the process is safer and more reliable than the non-support vertical excavation, the recovery is finally realized for repeated utilization, and the engineering construction mechanization level is improved; in the aspect of emergency rescue, the invention can be used as a temporary support to prevent the secondary collapse caused by re-excavation of the soil body overturned at the excavation accident position of the rescue team, thereby being beneficial to the rescue team to safely and quickly search and rescue the buried personnel at the collapse position.

The above disclosure is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, so that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.