CN211735579U - Rotary excavating and foundation cleaning system for large cofferdam of inland river - Google Patents
Rotary excavating and foundation cleaning system for large cofferdam of inland river Download PDFInfo
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- CN211735579U CN211735579U CN202020014405.1U CN202020014405U CN211735579U CN 211735579 U CN211735579 U CN 211735579U CN 202020014405 U CN202020014405 U CN 202020014405U CN 211735579 U CN211735579 U CN 211735579U
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Abstract
The utility model discloses a clear basic system is dug soon in large-scale cofferdam of inland river, its characterized in that: the pile foundation pile casing supporting device comprises a rotary drilling locomotive, a vertical support and a horizontal support, wherein the vertical support is a finished pile foundation casing, and the horizontal support is a platform steel frame consisting of I-shaped steel which is staggered transversely and longitudinally and used for supporting the rotary drilling locomotive; the pile foundation protects and is equipped with on the section of thick bamboo with I-steel complex breach, the base of all breachs all is in same level. The utility model discloses in, protect a section of thick bamboo through the pile foundation that effectively utilizes to have accomplished, build and be used for supporting the platform steelframe of digging the brill soon, can realize digging soon and bore the application of removing the base in the cofferdam, can overcome the tradition and clear the problem that the base is difficult to clear up the sand cobble layer that hardens under water, improve work efficiency by a wide margin, shorten construction period.
Description
Technical Field
The utility model relates to a bridge foundation construction technical field especially relates to a clear basic system is dug soon in large-scale cofferdam of inland river.
Background
The foundation clearing of the traditional cofferdam is generally carried out by utilizing an air compressor to cooperate with a mud suction pipeline to suck mud underwater in the process of sinking the cofferdam or before the cofferdam is put down. Or a long-arm excavator is adopted to carry out underwater dredging on the platform, and the soil layer in the cofferdam is excavated.
The mode that traditional air compressor cooperation was inhaled mud pipeline and is carried out mud of inhaling under water is applicable to the depth of water and reaches certain degree of depth, and the riverbed mainly is silt, sand or comparatively loose sand cobble layer and the ovum layer material footpath is less. The long-arm excavator is suitable for structures with shallow water depth and loose riverbed soil layers, otherwise, the long-arm excavator cannot excavate due to low excavation force.
SUMMERY OF THE UTILITY MODEL
Traditional clear base system in cofferdam is hardly cleared up out the riverbed with the grit that hardens, for the speed of accelerating clear base in the grit layer that hardens, improves the whole construction speed of bridge foundation, ensures construction safety simultaneously, the utility model provides a clear base system is dug soon to the large-scale cofferdam of inland river.
The utility model adopts the technical scheme as follows:
the utility model provides a clear base system is dug soon to large-scale cofferdam of inland river which characterized in that: the pile foundation pile casing supporting device comprises a rotary drilling locomotive, a vertical support and a horizontal support, wherein the vertical support is a finished pile foundation casing, and the horizontal support is a platform steel frame consisting of I-shaped steel which is staggered transversely and longitudinally and used for supporting the rotary drilling locomotive; the pile foundation protects and is equipped with on the section of thick bamboo with I-steel complex breach, the base of all breachs all is in same level.
The utility model discloses a clear basic system is dug soon in large-scale cofferdam of preferred inland river, its characterized in that: at least one of the platform steel frames is a widened I-steel and is matched with other I-steels parallel to the widened I-steel to support the rotary drilling rig locomotive; the upper flange plate of the widened I-shaped steel is provided with a transverse extension plate connected with the lower flange plate through an oblique supporting piece, and the transverse extension plate is used for forming a pedestrian passageway.
Further, the oblique supporting member is a rod member or a triangular plate member.
Furthermore, a railing is arranged on the transverse extending plate and used for preventing the pedestrian from falling.
The utility model discloses a clear basic system is dug soon in large-scale cofferdam of preferred inland river, its characterized in that: the I-steel of the platform steel frame is a three-spliced I-steel.
The utility model discloses a clear basic system is dug soon in large-scale cofferdam of preferred inland river, its characterized in that: the device also comprises a crane and a transport vehicle for conveying the excavated sand pebbles to a pointing place.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the utility model provides a clear basic system is dug soon in large-scale cofferdam of inland river protects a section of thick bamboo through the pile foundation that effectively utilizes to have accomplished, builds the platform steelframe that is used for supporting to dig soon and bores, can realize digging soon and bore the application of removing the base in the cofferdam, can overcome the problem that traditional clear base is difficult to clear up the gravel layer that hardens under water, improves work efficiency by a wide margin, reduction of construction period.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a cross-sectional view taken at a-a in fig. 1.
Description of reference numerals:
1-pile casing, 2-platform steel frame, 21-I-steel, 22-widened I-steel, 221-transverse extension plate, 222-oblique supporting piece and 3-railing.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. 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 embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Example 1:
the riverbed at the cofferdam of No. 14 pier of a certain project is a hardened sand-gravel layer, the cementing strength is high, the depth of the foundation to be cleaned is about 4.5 meters on average, a long-arm excavator and an air mud suction method are applied to carry out on-site foundation cleaning, but the efficiency is extremely low. Under the condition, the project group develops a large-scale cofferdam rotary digging and foundation cleaning system for the inland river. Specifically, the system comprises a rotary drilling locomotive, a vertical support and a horizontal support, wherein the vertical support is a finished pile foundation casing 1, and the horizontal support is a platform steel frame 2 consisting of transverse and longitudinal staggered I-shaped steel 21 and used for supporting the rotary drilling locomotive; the pile foundation casing 1 is provided with notches matched with the I-shaped steel 21 and used for placing the I-shaped steel 21, and the bottom edges of all the notches are at the same horizontal height.
At least one of the platform steel frames 2 is a widened I-steel 22 which is matched with other I-steels 21 parallel to the widened I-steel and used for supporting the rotary drilling locomotive. The upper flange plate of the h-section bar 22 is provided with a transversely extending plate 221 connected to the lower flange plate by diagonal bracing 222 for forming a walkway. To prevent the pedestrian from falling, the transverse extension plate 221 is provided with a rail.
The i-steel 21 of the platform steel frame 2 is a three-spliced i-steel, and the oblique supporting member 222 is a rod or a triangular plate.
The large-scale cofferdam rotary digging and foundation cleaning system for the inland river further comprises a crane and a transport vehicle, and the crane and the transport vehicle are used for transporting dug sand pebbles to a pointing place.
In this embodiment, utilize the pile foundation that has accomplished to protect a section of thick bamboo 1 as the vertical support of vertical atress, adopt three to piece together I-steel to build platform steelframe 2, three pieces together in the I-steel embedding protects the breach on a section of thick bamboo 1, realize with protecting a firm connection of section of thick bamboo 1. The widened I-steel 22 of the platform steel frame 2 and a certain three-spliced I-steel parallel to the widened I-steel 22 can form a lane of the rotary drilling locomotive, the rotary drilling locomotive moves to a corresponding position where a foundation needs to be cleaned on the platform steel frame 2 along the lane, a cemented sand-gravel layer is excavated by using a drill bit of the rotary drilling locomotive, and the excavated sand-gravel is lifted to a transport vehicle by using a crane and is transported to a pointing place. After the riverbed in the current rotary excavating construction range is cleaned to the designed elevation, the widened I-steel 22 is transferred to the next area by using the crane, and the foundation cleaning is continued according to the steps until all the areas are cleaned. In the embodiment, the completed pile foundation protective barrel 1 is effectively utilized, the platform steel frame 2 for supporting the rotary drilling rig is built, the rotary drilling rig can be applied to cofferdam foundation cleaning, the drilling speed of the rotary drilling rig can be sufficiently utilized, the characteristic of more soil layers is suitable, and the construction efficiency is greatly improved.
Example 2:
the present embodiment is different from embodiment 1 in that:
the diagonal support member 222 is a triangular plate member, which can further improve the structural stability of the lateral extension plate 221.
The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.
Claims (6)
1. The utility model provides a clear base system is dug soon to large-scale cofferdam of inland river which characterized in that: the pile foundation pile casing supporting device comprises a rotary drilling locomotive, a vertical support and a horizontal support, wherein the vertical support is a finished pile foundation casing, and the horizontal support is a platform steel frame consisting of I-shaped steel which is staggered transversely and longitudinally and used for supporting the rotary drilling locomotive; the pile foundation protects and is equipped with on the section of thick bamboo with I-steel complex breach, the base of all breachs all is in same level.
2. The rotary excavation and foundation cleaning system for the large inland river cofferdam of claim 1, which is characterized in that: at least one of the platform steel frames is a widened I-steel and is matched with other I-steels parallel to the widened I-steel to support the rotary drilling rig locomotive; the upper flange plate of the widened I-shaped steel is provided with a transverse extension plate connected with the lower flange plate through an oblique supporting piece, and the transverse extension plate is used for forming a pedestrian passageway.
3. The rotary excavation and foundation cleaning system for the large inland river cofferdam of claim 2, which is characterized in that: the oblique supporting piece is a rod piece or a triangular plate.
4. The rotary excavation and foundation cleaning system for the large inland river cofferdam of claim 2, which is characterized in that: be equipped with the railing on the horizontal extension board for the prevention pedestrian falls.
5. The rotary excavation and foundation cleaning system for the large inland river cofferdam according to claim 1 or 2, characterized in that: the I-steel of the platform steel frame is a three-spliced I-steel.
6. The rotary excavation and foundation cleaning system for the large inland river cofferdam according to claim 1 or 2, characterized in that: the device also comprises a crane and a transport vehicle for conveying the excavated sand pebbles to a pointing place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020014405.1U CN211735579U (en) | 2020-01-03 | 2020-01-03 | Rotary excavating and foundation cleaning system for large cofferdam of inland river |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020014405.1U CN211735579U (en) | 2020-01-03 | 2020-01-03 | Rotary excavating and foundation cleaning system for large cofferdam of inland river |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211735579U true CN211735579U (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020014405.1U Active CN211735579U (en) | 2020-01-03 | 2020-01-03 | Rotary excavating and foundation cleaning system for large cofferdam of inland river |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211735579U (en) |
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2020
- 2020-01-03 CN CN202020014405.1U patent/CN211735579U/en active Active
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