CN113463649A

CN113463649A - Groove excavation foundation pit supporting device and construction method

Info

Publication number: CN113463649A
Application number: CN202110707962.0A
Authority: CN
Inventors: 杨景; 周艳平; 曾亚丹; 蒋随喜; 周培
Original assignee: Hunan Xinyu Planning Design Co ltd
Current assignee: Hunan Xinyu Planning Design Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-10-01

Abstract

The utility model relates to a ditch excavation supporting device and construction method belongs to the field of irrigation and water conservancy engineering construction, and ditch excavation supporting device includes that two sides keep off subassembly and supporting component, two the side shield is used for supporting on the lateral wall of slot, supporting component is used for connecting the both sides baffle, supporting component includes at least two sets of extensible members, two the extensible member sets up the one side that keeps off the subassembly in the side separately, supporting component can stretch out and draw back and keep off the interval between the subassembly in order to change both sides, two one side that supporting component kept away from each other respectively is provided with the setting element, the setting element is used for pegging graft in the both sides wall of slot. This application has the effect that reduces the cost of strutting the construction among the slot excavation process.

Description

Groove excavation foundation pit supporting device and construction method

Technical Field

The application relates to the field of construction of farmland hydraulic engineering, in particular to a trench excavation foundation pit supporting device and a construction method.

Background

Irrigation and water conservancy construction is water conservancy facilities serving the farmland through development and repair, and comprises irrigation, drainage, waterlogging removal, salt and water damage prevention and control and the like. The main content is to renovate the irrigation and drainage canal system in the field, level the land, adopt measures such as water storage, water diversion across the drainage basin and the like to adjust the space-time distribution of water resources, and create good conditions for fully utilizing water and soil resources and developing agriculture.

In the construction process of the irrigation and water conservancy groove, because the excavation time of the groove is short, the soil body of the formed side slope is high in humidity and soft, the construction safety cannot be guaranteed by simple slope-releasing measures, and the risk of foundation pit collapse still exists. Chinese patent No. CN210238532U discloses an open trench tunnel groove supporting structure, which comprises a groove, a plurality of supporting piles arranged along the outer contour line of the groove at intervals, and a plurality of protection plates attached to the side wall of the groove and fixedly arranged on the supporting piles, wherein the protection plates are spliced with each other to enclose the side wall of the groove. Through setting up fender pile and guard plate, can be quick strut the slot.

Aiming at the related technologies, the inventor thinks that the support piles in the scheme are inserted into the ground and are difficult to recover after construction is finished, and a large number of support piles are arranged along the two sides of the groove in the water conservancy groove construction process, so that the construction cost is high.

Disclosure of Invention

In order to reduce the cost of supporting construction in the process of trench excavation, the application provides a trench excavation foundation pit supporting device and a construction method.

On the one hand, this application provides a trench excavation supporting device, adopts following technical scheme:

the utility model provides a trench excavation supporting device, includes that two sides keep off subassembly and supporting component, two the side shield is used for supporting on the lateral wall of slot, supporting component is used for connecting the both sides baffle, supporting component includes at least two sets of extensible member, two the extensible member sets up the one side that keeps off the subassembly in the side separately, supporting component can stretch out and draw back and keep off the interval between the subassembly, two in order to change both sides one side that supporting component kept away from each other respectively is provided with the setting element, the setting element is used for pegging graft in the both sides wall of slot.

Through adopting above-mentioned technical scheme, can adjust both sides through the extensible member and keep off the interval between the subassembly, make the side shield can support tightly on the lateral wall of slot to fix through the setting element, can make two side shield subassemblies be close to each other through adjusting the side shield subassembly once more after the construction is accomplished, the setting element can keep off the subassembly along with the side and leave the slot lateral wall together, can pull down whole strutting arrangement and carry out recycle, construction cost is lower.

Optionally, the side baffle assembly comprises two upright columns and a side baffle plate connected with the two upright columns, and the side baffle plate is in insertion fit with the upright columns along the length direction of the upright columns.

Through adopting above-mentioned technical scheme, the side shield cooperates through pegging graft with the stand, can unpack apart and produce and transport respectively, and the cost of production and transportation is lower, and is also comparatively convenient during the equipment.

Optionally, the positioning element includes a positioning seat fixed on the upright post and a positioning rod fixed on the positioning seat, and the positioning rod is used for being inserted into the side wall of the groove.

Through adopting above-mentioned technical scheme, when the locating lever received the shearing force, power was used on the stand, can not exert on the side shield, can protect the side shield, avoids the side shield impaired, locating lever and positioning seat fixed connection, and stability is better.

Optionally, the positioning element includes a positioning seat fixed on the upright column and a positioning rod hinged on the positioning seat, and the positioning rod is used for being inserted into the side wall of the groove.

Through adopting above-mentioned technical scheme, in the work progress, can the rotation positioning pole, make the locating lever perpendicular with the stand, can the rotation positioning pole when the transportation, make the locating lever be close to the stand, can reduce the space that occupies so that the transportation, can avoid locating lever fish tail staff simultaneously, the security is better.

Optionally, the extensible member includes two sleeves and an adjusting rod, two the sleeves are respectively with a stand fixed connection, the both ends of adjusting the pole all are provided with the external screw thread, and adjust the screw thread turning at both ends opposite, two the sleeve pipe is kept away from the stand one end threaded connection with the adjustment pole respectively.

Through adopting above-mentioned technical scheme, when the rotation was adjusted the pole, can order about two sleeves through screw-thread fit and keep away from each other/be close to each other, and then make two side keep off the subassembly and keep away from each other/be close to each other, it is comparatively convenient to adjust.

Optionally, the telescopic part comprises four sleeves, two connecting seats and an adjusting rod, each connecting seat is hinged to the two sleeves, one end, far away from the connecting seats, of each sleeve is hinged to the corresponding stand column, external threads are arranged at two ends of each adjusting rod, the thread turning directions of the two ends of each adjusting rod are opposite, two ends of each adjusting rod are connected with one connecting seat in a threaded mode, and the sum of the lengths of the two sleeves on the same connecting seat is larger than the width of each groove.

Through adopting above-mentioned technical scheme, during the rotation regulation pole, can order about two connecting seats through screw-thread fit and keep away from each other/be close to, and then make the connecting seat promote the sleeve pipe, make two sets of pipe clamp angles on the same connecting seat increase/reduce to realize that two side keep off the subassembly and keep away from each other/be close to each other, stability is better.

Optionally, the positioning seat is provided with an articulated shaft, the sleeve and the positioning rod are fixedly connected and are connected to the articulated shaft in a rotating mode, and when the distance between the side blocking assemblies is increased, the included angle between the positioning rod and the stand column is increased.

Through adopting above-mentioned technical scheme, can drive the locating lever and rotate adjusting the in-process that the side kept off the subassembly interval, make the locating lever insert the slot lateral wall in, need not extra operation locating lever, it is comparatively convenient to use.

Optionally, a sliding assembly is arranged at the bottom of the side blocking assembly, the sliding assembly comprises a sliding plate, and one surface of the sliding plate, which is used for being in contact with the ground, is streamlined.

Through adopting above-mentioned technical scheme, can promote the side and keep off the subassembly after the construction of accomplishing one section slot, make the side keep off the subassembly and slide along the slot, enter into next construction section and carry out the construction, need not to hoist and mount and transport, be convenient for carry out continuous construction.

In a second aspect, the application provides a method for supporting and constructing a trench excavation foundation pit, comprising the following steps:

step 1, pre-adjusting a supporting device, and adjusting a telescopic piece to enable the distance between two supporting components to be smaller than the width of a foundation pit;

step 2, hoisting the whole supporting device and placing the whole supporting device into a foundation pit;

step 3, adjusting the telescopic pieces again to enable the two supporting components to be away from each other until the supporting components are abutted against the side wall of the ditch, and inserting the positioning piece into the side wall of the foundation pit in the process that the supporting components are close to the side wall of the ditch;

and 4, after the construction of the ditch is finished, adjusting the telescopic piece to enable the supporting component to be far away from the side wall of the ditch and the positioning piece to be separated from the side wall of the foundation pit, and then moving the whole supporting device to the next section of area needing to be supported.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the two side retaining assemblies are arranged, the side retaining assemblies are connected through the telescopic pieces, and the distance between the side retaining assemblies can be changed by adjusting the telescopic pieces so as to facilitate installation and disassembly;

2. the sliding assembly is arranged below the side blocking assembly, the side blocking assembly can be pushed after construction of one section of groove is completed, the side blocking assembly slides along the groove, construction is carried out in the next construction section, and hoisting and carrying are not needed.

Drawings

Fig. 1 is a schematic perspective view of embodiment 1 of the present application;

FIG. 2 is a schematic perspective view of embodiment 2 of the present application;

FIG. 3 is a schematic view of the telescoping member of FIG. 2;

fig. 4 is a schematic perspective view of embodiment 4 of the present application.

Description of reference numerals: 1. a slide plate; 2. a side shield assembly; 21. a side dam; 22. a column; 23. a slot; 3. a positioning member; 31. positioning seats; 32. positioning a rod; 4. a telescoping member; 41. a sleeve; 42. adjusting a rod; 43. a connecting seat; 5. and (4) hinging the shaft.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

Example 1

On the one hand, this embodiment discloses a trench excavation supporting device. Referring to fig. 1, slot excavation supporting device includes that two sides keep off subassembly 2 and supporting component, and the side keeps off subassembly 2 and is used for supporting tightly to consolidate the slot both sides on the lateral wall of slot, and the supporting component setting is kept off between subassembly 2 at two sides, makes two sides keep off subassembly 2 can keep the fixed interval, can not remove under the effect of slot lateral wall earthwork.

Side fender subassembly 2 includes two stands 22 and is located a plurality of side shields 21 between two stands 22, and slot 23 has all been seted up to one side that two stands 22 are close to each other, and slot 23 extends along stand 22's length direction, can extract side shield 21 from slot 23 when the transportation to deposit and transport, can peg graft side shield 21 and form a whole in slot 23 when the construction.

One side of each of the two support assemblies, which is far away from each other, is provided with a positioning element 3, each positioning element 3 comprises a positioning seat 31 fixed on the upright column 22, a positioning rod 32 is welded and fixed on each positioning seat 31, the positioning rod 32 is perpendicular to the upright column 22, and one end, far away from the upright column 22, of the positioning rod 32 is in a conical shape. A set of positioning seats 31 and positioning rods 32 are fixed to the upper and lower ends of the same upright column 22, respectively, and the positioning rods 32 are inserted into the side walls of the grooves to fix the upright column 22.

The supporting component comprises four groups of telescopic pieces 4 arranged in parallel, each upright post 22 is connected with two telescopic pieces 4, and the two side blocking components 2 are connected into a whole by the telescopic pieces 4. The telescopic part 4 comprises two sleeves 41 and an adjusting rod 42, wherein each sleeve 41 is fixedly connected with one positioning seat 31, both ends of the adjusting rod 42 are provided with external threads, the thread turning directions of both ends of the adjusting rod 42 are opposite, and one ends of the sleeves 41 far away from the upright column 22 are respectively in threaded connection with one end of the dispensing rod. When the adjusting rod 42 is rotated, the adjusting rod 42 is connected with the sleeve 41 by screw threads, so that the sleeve 41 can be driven to move along the axial direction of the adjusting rod 42, and the screw threads at the two ends of the adjusting rod 42 are opposite in turning direction, so that the two sleeves 41 move in opposite directions and approach to or separate from each other.

The bottom that the subassembly 2 was kept off to the side is provided with the slip subassembly, and the slip subassembly includes slide 1, and the both ends of slide 1 are respectively through bolt and the coexistence post 22 fixed connection of the same subassembly 2 that keeps off to the side, and the one side of keeping away from stand 22 of slide 1 is streamlined, makes slide 1 can slide in the mud ground.

On the other hand, the embodiment also discloses a construction method for supporting the foundation pit in the groove excavation, which comprises the following steps:

step 1, assembling a supporting device, namely fixing the upright posts 22 and the sliding plate 1 through bolts, inserting a supporting plate into the slots 23 between the two upright posts 22 to form supporting components, and finally connecting the two supporting components into a whole through the telescopic pieces 4. And the support device is preset, and the two support assemblies are driven to be close to each other by rotating the adjusting rod 42, so that the distance between the two support assemblies is smaller than the width of the foundation pit.

And 2, hoisting the whole supporting device and placing the whole supporting device into the foundation pit.

Step 3, rotating the adjusting rod 42 again to enable the two supporting components to be away from each other until the supporting components are tightly abutted against the side wall of the ditch, and inserting the positioning rod 32 into the side wall of the foundation pit in the process that the supporting components are close to the side wall of the ditch;

and 4, after the construction of the ditch is finished, rotating the adjusting rod 42 to enable the supporting component to be far away from the side wall of the ditch and the positioning piece 3 to be separated from the side wall of the foundation pit, and then pushing the whole supporting device to move along the length direction of the ditch to enter the next construction section.

And 5, repeating the

steps

3 and 4 until the construction of the whole groove is completed, and finally, lifting the supporting device out of the groove.

Example 2

Referring to fig. 2 and 3, the present embodiment is different from embodiment 1 in that: the telescopic member 4 comprises two connecting seats 43, each connecting seat 43 is hinged with two sleeves 41, each sleeve 41 on the same connecting seat 43 is hinged with one upright post 22, and the sum of the lengths of the two sleeves 41 on the same connecting seat 43 is greater than the width of the groove. An adjusting rod 42 is connected to the two connecting seats 43 together, external threads are arranged at two ends of the adjusting rod 42, the thread turning directions of two ends of the adjusting rod 42 are opposite, and two ends of the adjusting rod 42 are respectively in threaded connection with one connecting seat 43.

Can drive two connecting seats 43 during rotatory regulation pole 42 and be close to each other or keep away from each other, and then make the contained angle change between two sleeve pipes 41 on same connecting seat 43, the contained angle between the sleeve pipe 41 is big more, and two strut the distance between the subassembly far away, when the contained angle between two sleeve pipes 41 reaches 180 degrees formation straight lines, two strut the subassembly and reach the limit farthest distance.

The positioning member 3 includes a positioning seat 31 fixed on the upright column 22, an articulated shaft 5 is arranged on the positioning seat 31, a positioning rod 32 is sleeved on the articulated shaft 5, and the positioning rod 32 is a fan-shaped sheet body. The sleeve 41 and the positioning rod 32 are fixedly connected and are connected on the hinge shaft 5 in a rotating mode, when the distance between the two side blocking assemblies 2 is increased, the included angle between the positioning rod 32 and the upright column 22 is increased, and the positioning rod 32 is enabled to be inserted into the side wall of the groove in a rotating mode.

Example 3

Referring to fig. 4, the present embodiment is different from embodiment 2 in that: the positioning element 3 comprises a positioning seat 31 fixed on the upright column 22, a positioning rod 32 is welded and fixed on the positioning seat 31, the positioning rod 32 is perpendicular to the upright column 22, and one end of the positioning rod 32 far away from the upright column 22 is in a conical shape. A set of positioning seats 31 and positioning rods 32 are fixed to the upper and lower ends of the same upright column 22, respectively, and the positioning rods 32 are inserted into the side walls of the grooves to fix the upright column 22.

The locating rod 32 is inserted perpendicularly into the side wall of the channel as the sleeve 41 is rotated to drive the post 22 adjacent the channel side wall.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a trench excavation foundation ditch support device which characterized in that: keep off subassembly (2) and a supporting component including two sides, two the side keeps off subassembly (2) and is used for supporting on the lateral wall of slot, the supporting component is used for connecting both sides baffle (21), the supporting component includes at least two sets of extensible member (4), extensible member (4) set up the one side that keeps off subassembly (2) in the side separately, the supporting component can stretch out and draw back and keep off the interval between subassembly (2) in order to change both sides, two one side that the supporting component kept away from each other respectively is provided with setting element (3), setting element (3) are used for pegging graft in the both sides wall of slot.

2. The device of claim 1, wherein: the side baffle component (2) comprises two upright columns (22) and side baffle plates (21) connected with the upright columns (22), and the side baffle plates (21) are in plug-in fit with the upright columns (22) along the length direction of the upright columns (22).

3. The device of claim 2, wherein: the positioning piece (3) comprises a positioning seat (31) fixed on the upright post (22) and a positioning rod (32) fixed on the positioning seat (31), and the positioning rod (32) is used for being inserted into the side wall of the groove.

4. The device of claim 2, wherein: the positioning piece (3) comprises a positioning seat (31) fixed on the upright post (22) and a positioning rod (32) hinged on the positioning seat (31), and the positioning rod (32) is used for being inserted into the side wall of the groove.

5. A trench excavation pit supporting device according to claim 3, characterized in that: the telescopic piece (4) comprises two sleeves (41) and an adjusting rod (42), wherein the two sleeves (41) are fixedly connected with one upright post (22) respectively, external threads are arranged at the two ends of the adjusting rod (42), the thread turning directions of the two ends of the adjusting rod (42) are opposite, and the one ends, far away from the upright post (22), of the sleeves (41) are connected with one end of the adjusting rod through threads respectively.

6. A trench excavation pit supporting arrangement as claimed in claim 3 or 4, wherein: the telescopic piece (4) comprises four sleeves (41), two connecting seats (43) and an adjusting rod (42), each connecting seat (43) is hinged to the two sleeves (41), one end, far away from the connecting seats (43), of each sleeve (41) is hinged to the upright column (22), external threads are arranged at two ends of each adjusting rod (42), the thread turning directions of two ends of each adjusting rod (42) are opposite, two ends of each adjusting rod (42) are connected with the corresponding connecting seat (43) in a threaded mode, and the sum of the lengths of the two sleeves (41) on the connecting seats (43) is larger than the width of the groove.

7. The device of claim 6, wherein: be provided with articulated shaft (5) on positioning seat (31), sleeve pipe (41) and locating lever (32) fixed connection rotate jointly and are connected on articulated shaft (5), two when keeping off subassembly (2) interval increase, the contained angle increase between locating lever (32) and stand (22).

8. The device of claim 1, wherein: the bottom of side fender subassembly (2) is provided with sliding assembly, sliding assembly includes slide (1), slide (1) is used for being streamlined with the one side of ground contact.

9. A construction method for supporting a foundation pit in trench excavation is characterized by comprising the following steps: use of a trench excavation retaining apparatus as claimed in any one of claims 1 to 8, including the steps of:

step 1, pre-adjusting a supporting device, and adjusting a telescopic piece (4) to enable the distance between two supporting components to be smaller than the width of a foundation pit;

step 3, adjusting the telescopic pieces (4) again to enable the two supporting components to be away from each other until the supporting components are tightly abutted against the side wall of the ditch, and inserting the positioning piece (3) into the side wall of the foundation pit in the process that the supporting components are close to the side wall of the ditch;

and 4, after the ditch construction is finished, adjusting the telescopic piece (4) to enable the supporting component to be far away from the side wall of the ditch and the positioning piece (3) to be separated from the side wall of the foundation pit, and then moving the whole supporting device to the next section of area needing to be supported.