CN216999631U - Soil pressure cell buries device underground suitable for weak soil area - Google Patents
Soil pressure cell buries device underground suitable for weak soil area Download PDFInfo
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- CN216999631U CN216999631U CN202220220880.3U CN202220220880U CN216999631U CN 216999631 U CN216999631 U CN 216999631U CN 202220220880 U CN202220220880 U CN 202220220880U CN 216999631 U CN216999631 U CN 216999631U
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Abstract
The utility model relates to a soil pressure cell embedding device suitable for soft soil areas, which comprises a crawler belt and a crawler belt steering mechanism, wherein the crawler belt steering mechanism comprises an internal reversing wheel set for supporting the inner surface of the crawler belt and an external supporting unit for supporting the outer surface of the crawler belt; the length of the inner section of the vertical hole is adjustable, the inner side of the bottom of the vertical hole is provided with a supporting unit, and the outer surface of the crawler is provided with a plurality of earth digging toothed plates along the circumferential direction of the crawler; in the internal reversing wheel set, one reversing wheel is a driving wheel provided with a driving unit. According to the utility model, the crawler belt with the excavating toothed plates is adopted, when the crawler belt extends into the hole, the hole can be excavated to the preset burying depth, and the collapsed soil body at the bottom of the hole can be taken out, so that the crawler belt is better suitable for the burying condition of the soil pressure box in a soft soil area; the device has simple structure, is easy to install and disassemble, and can obviously improve the construction efficiency and shorten the construction period.
Description
Technical Field
The utility model belongs to the technical field of engineering safety, particularly relates to the field of foundation pit engineering safety, and particularly relates to a soil pressure cell embedding device suitable for a soft soil area.
Background
As a mature construction process, the underground continuous wall is widely adopted in foundation pit engineering, has the functions of water interception, seepage prevention, bearing and water retaining, belongs to underground concealed engineering, and has the difficulty in deformation monitoring and maintenance.
The existing soil pressure cell mounting methods comprise the following three methods:
(1) drilling method
The method comprises the steps of drilling holes in the soil behind the wall close to the diaphragm wall, then placing a calibrated soil pressure cell into the drilled holes, and then filling the holes with fine sand, wherein hole wall collapse possibly occurs in the drilling process in a soft soil area, so that the soil pressure cell cannot be smoothly buried into a preset position.
(2) Cloth hanging method
And fixing the calibrated soil pressure cell on the hanging cloth, and fixing the soil pressure cell on the outer wall of the wall body at the lower entering groove wall by means of concrete pressure. The method has the defect that cement paste in concrete can easily permeate between the soil pressure box and the soil behind the wall in the process of pouring concrete of the diaphragm wall, so that the soil pressure box is wrapped by the cement paste and is discarded.
(3) Gas pressure method
Fixing the calibrated soil pressure box on the pneumatic part, then placing the pneumatic part on a steel frame, applying air pressure in the lower groove before concrete pouring and on each instrument respectively to fix the soil pressure box on the groove wall, releasing pressure after concrete pouring is finished, and using concrete pressure to permanently fix the soil pressure box on the outer wall of the wall body. The method is complex to operate, and the jacking force provided by the pneumatic pressing piece is limited.
Patent CN104863108A adopts the atmospheric pressure method to bury the soil pressure cell, has optimized the device of burying and has overcome the shortcoming that the jacking force of atmospheric pressure method is not enough. The patent CN208917813U installs the soil pressure cell in specific soil pressure support, adopts the pile driver to squeeze into specific position underground, and the pile driver is pressed in the in-process, can lead to the soil pressure cell to take place to destroy. The above patents are only studying the pre-embedding mode of the soil pressure cell, are only applicable to geological environments with good geological conditions, do not consider the rheological flow-plastic property of soft soil, and have large application limitation.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a soil pressure box burying device suitable for soft soil areas, which can at least solve part of defects in the prior art.
The utility model relates to a soil pressure cell embedding device suitable for soft soil areas, which comprises a crawler belt and a crawler belt steering mechanism, wherein the crawler belt steering mechanism comprises an internal reversing wheel set for supporting the inner surface of the crawler belt and an external supporting unit for supporting the outer surface of the crawler belt, and the crawler belt passes through the internal reversing wheel set and the external supporting unit and forms an outer tunnel section and an inner vertical tunnel section; the length of the inner section of the vertical hole is adjustable, the inner side of the bottom of the vertical hole is provided with a supporting unit, and the outer surface of the crawler is provided with a plurality of excavating toothed plates along the circumferential direction of the crawler; in the internal reversing wheel set, one reversing wheel is a driving wheel provided with a driving unit.
As one embodiment, the driving unit can drive the driving wheel to rotate forward and backward.
In one embodiment, a backfill material bin is arranged right above the crawler.
As one embodiment, the included angle between the excavating toothed plate and the crawler belt surface is 20-50 degrees.
In one embodiment, one of the reversing wheels of the internal reversing wheel set is mounted on a movable support, the movable support is slidably disposed on an adjusting guide rail, and the adjusting guide rail extends toward one side of the inner section of the vertical hole.
In one embodiment, the adjustment rail is a horizontal rail having a guide direction parallel to a horizontal direction.
As an embodiment, the weight bearing unit comprises a weight bearing ball, and the diameter of the weight bearing ball is adapted to the diameter of the soil pressure box to be buried.
In one embodiment, the supporting ball is fastened to a traction bracket through a traction suspension wire, and the winding length of the traction suspension wire on the traction bracket is adjustable.
The utility model has at least the following beneficial effects:
the soil pressure cell burying device provided by the utility model adopts the crawler belt with the excavating toothed plates, when the crawler belt extends into the holes, the holes can be excavated to the preset burying depth, and the collapsed soil body at the bottom of the holes can be brought out, so that even if the holes collapse, the holes are not considered enough, and the soil pressure cell burying device can be better suitable for the soil pressure cell burying conditions in soft soil areas. The device has simple structure, is easy to install and disassemble, and can obviously improve the construction efficiency and shorten the construction period.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of an earth pressure cell burying device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a soil pressure cell burying device suitable for a soft soil area, including a crawler 1 and a crawler steering mechanism, where the crawler steering mechanism includes an inner reversing wheel set supporting an inner surface of the crawler and an outer supporting unit supporting an outer surface of the crawler, and the crawler 1 passes around the inner reversing wheel set and the outer supporting unit and forms an outer tunnel section and an inner vertical tunnel section; the length of the inner section of the vertical hole is adjustable, a supporting unit is arranged on the inner side of the bottom of the vertical hole, and a plurality of earth digging toothed plates 11 are arranged on the outer surface of the crawler 1 along the circumferential direction of the crawler; one of the reversing wheels in the internal reversing wheel set is a driving wheel 21 provided with a driving unit.
The vertical hole inner section can enter a pre-buried hole, the pre-buried hole is used for burying the soil pressure box, or a pre-buried hole suitable for burying the soil pressure box can be dug through the vertical hole inner section; therefore, the width of the vertical bore inner section is preferably matched to the diameter of the earth pressure cell, typically slightly larger than the diameter of the earth pressure cell. Wherein, the width of the inner section of the vertical hole can be controlled by the branch weight unit. In one embodiment, the weight bearing unit comprises a weight bearing ball 26, the diameter of the weight bearing ball 26 is adapted to the diameter of the soil pressure box to be buried, and preferably, the diameter of the weight bearing ball 26 is not smaller than the diameter of the soil pressure box to be buried, for example, 1-8 cm larger than the diameter of the soil pressure box to be buried; preferably, the soil pressure cell burying device is provided with a plurality of thrust balls 26 having different diameters, which can be adjusted according to the specification of the soil pressure cell and the size of the pre-buried hole, and has strong adaptability. In another embodiment, the thrust unit may also adopt a thrust wheel or the like.
The supporting unit can generate pressure action on the inner section of the vertical hole through self weight, and guarantees the regularity of the inner section of the vertical hole and better contact with the soil body, so that the soil body is excavated. Therefore, the weight of the weight bearing unit should be a certain amount, for example, a solid metal weight bearing ball 26 is used.
For the above case of using the supporting ball 26, preferably, the supporting ball 26 is fastened to a traction bracket through a traction suspension wire 27, and the winding length of the traction suspension wire 27 on the traction bracket is adjustable, so that the traction length of the traction suspension wire 27, that is, the height of the supporting ball 26, can be continuously adjusted according to the excavation condition of the pre-buried hole. The traction suspension wire 27 may be made of two strands of nylon materials with opposite twisting directions, so as to ensure that the suspension wire 27 does not twist when being under tension.
In one embodiment, one of the reversing wheels in the internal reversing wheel set is located right above the inner section of the vertical hole, or right above the supporting unit, and the other reversing wheels are located at the side of the inner section of the vertical hole, that is, horizontally offset from the inner section of the vertical hole; the external supporting unit is located at a preset hole opening of the embedded hole, is matched with the reversing wheel right above the supporting unit and can limit the vertical hole inner section by combining the pressure action of the supporting unit.
It will be appreciated that the outer support unit should avoid interference with the excavating tooth plate 11, and therefore, the width of the excavating tooth plate 11 (i.e., the dimension in the axial direction of the reversing wheel) should be smaller than the width of the track 1, and preferably, the excavating tooth plate 11 is located at the middle of the track, so that the outer support unit can support both side portions of the track 1, respectively.
The length of the vertical tunnel inner section is adjustable, the excavation depth can be adjusted, the appropriate excavation speed and the process of the pre-buried hole can be guaranteed, the requirements of different burying depths of the soil pressure cell can be met, and the applicability is wider. In one embodiment, as shown in fig. 1, one of the internal reversing wheel sets is mounted on a movable bracket 23, the movable bracket 23 is slidably disposed on an adjusting rail 25, and the adjusting rail 25 extends toward one side of the inner section of the vertical hole. Preferably, the reversing wheel positioned right above the inner section of the vertical hole is a driving wheel 21, the driving wheel 21 is preferably mounted at a corresponding position through a fixed bracket 24, and a driven wheel 22 is mounted on the movable bracket 23; in this embodiment, the wheel set of one driving wheel 21+ one driven wheel 22 is adopted, so as to meet the engineering requirements. The adjusting guide rail 25 has a high smoothness, so as to prevent the movable support 23 and the reversing wheel mounted thereon from shaking greatly to cause soil collapse in the pre-buried hole (although the collapsed soil can be brought out).
In one embodiment, the adjusting guide 25 is a horizontal guide 25 with a guiding direction parallel to the horizontal direction. Preferably, one end of the horizontal guide rail 25 extends to the preset hole position of the pre-buried hole, and the corresponding end of the horizontal guide rail 25 can be used for supporting the outer surface of the crawler 1, that is, the horizontal guide rail 25 can form the external supporting unit; alternatively, an external support roller may be installed at the corresponding end of the horizontal rail 25 to constitute the external support unit.
Further preferably, in the above solution that the supporting ball 26 is suspended by the pulling suspension wire 27, the pulling suspension wire 27 can be fastened to the movable bracket 23, that is, the movable bracket 23 also serves as the pulling bracket, so that the lifting of the supporting ball 26 can be well matched with the length adjustment of the inner section of the vertical hole.
The soil pressure cell embedding device is further optimized, the device can also realize backfill of pre-buried holes, the depth of the pre-buried holes is accurately controlled, and high-precision installation of the soil pressure cell is realized. Correspondingly, as shown in fig. 1, a backfill material bin 3 is arranged right above the crawler 1, when the pre-buried hole needs to be backfilled, a feed opening of the backfill material bin 3 is opened, so that backfill soil falls onto the crawler 1, and the backfill soil is brought to the bottom of the hole through the rotary motion of the crawler 1. Obviously, the driving unit should be able to drive the driving wheel 21 to rotate forward and backward, for example, a motor capable of rotating forward and backward is used. In the configuration shown in figure 1, when the track 1 rotates clockwise, the device performs an earth-digging operation, which brings out the earth mass in the hole; when track 1 anticlockwise rotates, through the cooperation of excavation pinion rack 11 and track area, can reliably retrain the soil body that falls to on track 1, take the soil body to the hole bottom and unload into the hole. In one embodiment, the included angle between the excavating tooth plate 11 and the belt surface of the track is 20-50 degrees, and is further preferably controlled to be about 30 degrees.
One specific method of using the above-described earth pressure cell burying device is exemplified below:
(1) firstly, determining the pre-buried depth H and the diameter D of the soil pressure cell, selecting a horizontal guide rail 25 with the length of H +2m, a traction suspension wire 27 with the length of H +1m, a crawler 1 with the length of 2 x H +4m, and a thrust ball 26 with the diameter larger than D;
(2) a pre-digging hole can be dug, and the depth of the pre-digging hole is the same as or similar to the target depth of the pre-burying hole, or is smaller than the target depth of the pre-burying hole; firstly, mounting a fixed support 24 right above a pre-dug hole, and mounting a driving wheel 21 on the fixed support 24; laying a horizontal guide rail 25, installing a movable bracket 23 on the horizontal guide rail 25, and installing a driven wheel 22 on the movable bracket 23;
(3) one end of a traction suspension wire 27 is fixed on the movable bracket 23, the other end of the traction suspension wire bypasses the fixed bracket 24 and is fixed on a thrust ball 26, and the fixed thrust ball 26 is placed in the pre-dug hole; the crawler 1 winds around the driving wheel 21, the supporting ball 26 and the driven wheel 22;
(4) the crawler 1 moves clockwise, the movable support 23 moves on the horizontal guide rail 25 in a matched mode, the crawler 1 and the supporting ball 26 slowly enter the pre-excavated hole, when the crawler 1 is in contact with the soil body at the bottom of the hole, the bottom collapsed soil can be brought to the ground surface, when the pre-excavated depth is reached, the supporting ball 26 and the crawler 1 are taken out, the soil pressure box is placed into the hole, the hole is backfilled, the pre-embedding of the soil pressure box is completed, and the equipment is disassembled, tidied and stored;
(5) if there is the overbreak in the hole depth of digging in advance, set up track 1 and thrust ball 26 at pre-buried degree of depth, the starter motor makes track 1 anticlockwise movement, opens backfill feed bin 3 simultaneously, and the backfill falls into on track 1, falls into the hole bottom along with track 1 motion, waits to backfill to the predetermined degree of depth, takes out thrust ball 26 and track 1, puts into the soil pressure cell, backfills the hole, accomplishes the pre-buried of earth pressure cell, disassembles, arranges in order, accomodates the equipment.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides a device is buried underground to soil pressure cell suitable for weak soil area, its characterized in that: the crawler type tunnel boring machine comprises a crawler and a crawler steering mechanism, wherein the crawler steering mechanism comprises an inner reversing wheel set supporting the inner surface of the crawler and an outer supporting unit supporting the outer surface of the crawler, and the crawler passes through the inner reversing wheel set and the outer supporting unit and forms an outer tunnel section and a vertical inner tunnel section; the length of the inner section of the vertical hole is adjustable, the inner side of the bottom of the vertical hole is provided with a supporting unit, and the outer surface of the crawler is provided with a plurality of excavating toothed plates along the circumferential direction of the crawler; in the internal reversing wheel set, one reversing wheel is a driving wheel provided with a driving unit.
2. A soil pressure cell burying device suitable for soft soil areas, according to claim 1, wherein: the driving unit can drive the driving wheel to rotate positively and negatively.
3. A soil pressure cell burying device suitable for soft soil areas, according to claim 2, wherein: and a backfill material bin is arranged right above the crawler.
4. A soil pressure cell burying device suitable for use in soft soil areas, according to any one of claims 1 to 3, wherein: the included angle between the excavating toothed plate and the belt surface of the crawler belt is 20-50 degrees.
5. A soil pressure cell burying device suitable for soft soil areas as claimed in claim 1, wherein: in the internal reversing wheel set, one reversing wheel is installed on a movable support, the movable support is slidably arranged on an adjusting guide rail, and the adjusting guide rail extends towards one side of the inner section of the vertical hole.
6. A soil pressure cell burying device suitable for soft soil areas, according to claim 5, wherein: the adjusting guide rail is a horizontal guide rail with the guide direction parallel to the horizontal direction.
7. A soil pressure cell burying device suitable for soft soil areas as claimed in claim 1, wherein: the thrust unit comprises a thrust ball, and the diameter of the thrust ball is adapted to the diameter of the soil pressure box to be buried.
8. A soil pressure cell burying device suitable for use in soft soil areas as claimed in claim 7, wherein: the supporting ball is connected to a traction bracket through a traction suspension wire, and the winding length of the traction suspension wire on the traction bracket is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220220880.3U CN216999631U (en) | 2022-01-26 | 2022-01-26 | Soil pressure cell buries device underground suitable for weak soil area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220220880.3U CN216999631U (en) | 2022-01-26 | 2022-01-26 | Soil pressure cell buries device underground suitable for weak soil area |
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| CN216999631U true CN216999631U (en) | 2022-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220220880.3U Active CN216999631U (en) | 2022-01-26 | 2022-01-26 | Soil pressure cell buries device underground suitable for weak soil area |
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| CN (1) | CN216999631U (en) |
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- 2022-01-26 CN CN202220220880.3U patent/CN216999631U/en active Active
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