CN218757568U - Transverse pipeline left groove and then closed open caisson - Google Patents
Transverse pipeline left groove and then closed open caisson Download PDFInfo
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- CN218757568U CN218757568U CN202223014994.1U CN202223014994U CN218757568U CN 218757568 U CN218757568 U CN 218757568U CN 202223014994 U CN202223014994 U CN 202223014994U CN 218757568 U CN218757568 U CN 218757568U
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- existing pipeline
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Abstract
The utility model relates to a cross pipeline and stay closed open caisson after groove, include: the device comprises the existing pipeline, a shallow working pit, a waterproof curtain, a blade, a well wall and a closed notch; a suspension pit is arranged on the ground, and a suspension section of the existing pipeline is exposed in the suspension pit; and a bailey beam is arranged on the ground outside the suspension pit through the suspension buttress and is connected with the existing pipeline through a lifting rope. The beneficial effects of the utility model are that: the well wall is symmetrically split into two halves for sinking, so that the two halves of the well wall can be symmetrically sunk at two sides of the existing pipeline, and the well walls at two sides are connected in a closed manner through the closed notches; the wall of each section is provided with a closed notch, so that the notch of each section is closed, and the quality of the open caisson is improved; the workload of slope excavation and supporting is reduced.
Description
Technical Field
The utility model is suitable for an among the open caisson crosses the construction of pipeline underground, especially including crossing pipeline and staying the closed open caisson behind the groove.
Background
The open caisson construction of the pipe culvert or the pier usually takes a prefabricated unit body as a main part, the well wall is hoisted in a split way, and the dead weight of the well wall is used for overcoming the resistance of the well wall to enable the well wall to sink to the designed elevation in an underground soil digging way; however, in the environment of urban areas, underground structures such as underground pipelines and pipe culverts are distributed more frequently, and the spatial distribution positions may coincide with the settlement construction positions, in this case, the pipelines are usually avoided by changing the positions of the open caisson, or the positions of the existing pipelines are changed and cut off to facilitate settlement construction, or the cast-in-place open caisson is adopted.
However, in the special environment and conditions, such as the small space in the urban area, the subsidence position cannot be changed, or the underground pipeline cannot be interfered, cut or changed in position by administrative means, the cast-in-place open caisson occupies a large area and is complicated to support, so the construction cost is very high, and therefore, a novel prefabricated open caisson is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough among the prior art, provide a cross pipeline and stay closed open caisson construction equipment behind the groove.
The transverse pipeline remains a groove and then closes the open caisson, and comprises: the device comprises the existing pipeline, a shallow working pit, a waterproof curtain, a blade, a well wall and a closed notch; a suspension pit is arranged on the ground, and a suspension section of the existing pipeline is exposed in the suspension pit; the ground outside the suspension pit is provided with a Bailey beam through a suspension buttress, the Bailey beam is parallel to the existing pipeline, the Bailey beam is arranged right above the existing pipeline, and the Bailey beam is connected with the existing pipeline through a lifting rope;
the shallow working pit is arranged below the existing pipeline; a waterproof curtain is arranged on the bottom contour of the inner edge part working pit in the soil body below the shallow part working pit and is formed by adjacent connection of stirring piles, the diameter of each stirring pile is larger than the width of an existing pipeline and a Bailey beam, and I-shaped steel is arranged on the vertical axis in each stirring pile;
the outer diameter of the blade foot is consistent with the inner length of the waterproof curtain; the well wall comprises a first well wall and a second well wall, the first well wall and the second well wall are symmetrically arranged above the blade feet along the axis of the existing pipe, a gap is reserved between the first well wall and the second well wall to form a notch, and the width of the notch is larger than that of the existing pipeline and the Bailey beam; the first well wall and the second well wall are provided with closed notches at the notches;
the closed notch comprises transverse connecting ribs and longitudinal ribs, the transverse connecting ribs are arranged in the notch, two ends of each transverse connecting rib are respectively connected with connecting ribs of the first well wall and the second well wall, and the longitudinal ribs are arranged between the transverse connecting ribs; the outer side of the well wall is provided with a notch inner die, and the inner side of the well wall is provided with a notch outer die.
Preferably, the method comprises the following steps: the width of the suspension pit is 2.0-3.0 times of the diameter of the existing pipeline, the depth of the suspension pit is consistent with the bottom elevation of the existing pipeline, and the length of the suspension pit is consistent with the length of the suspension section of the existing pipeline.
Preferably, the method comprises the following steps: the bottom of the shallow working pit is a plane, the dead distance between the plane at the bottom of the shallow working pit and the existing pipeline is 2.0-2.5 m, and a certain gradient is formed between the top excavation line and the bottom plane of the shallow working pit.
Preferably, the method comprises the following steps: the depth of the bottom of the waterproof curtain exceeds the designed depth of the open caisson by 2.5-3.0 m.
Preferably, the method comprises the following steps: the height of the cutting edge is 1.5 m-2.0 m, a concrete back cover is arranged on the inner side of the cutting edge, and the thickness of the concrete back cover is larger than the height of the cutting edge.
Preferably, the method comprises the following steps: the height of the first well wall and the second well wall is 2-3 times of that of the blade foot.
The beneficial effects of the utility model are that:
1) The well wall is symmetrically split into two halves for open caisson, so that open caisson can be symmetrically arranged on two sides of an existing pipeline, and the well walls on two sides are connected in a closed mode through the closed notches.
2) The wall of a well of each section is provided with a closed notch, so that the notches of each section are closed, and the quality of the open caisson is improved.
3) Compare in the current cast-in-place open caisson that passes through existing pipeline in underground, the utility model discloses not only reduced the work load of side slope excavation and support, still promoted the efficiency of open caisson, had outstanding economic benefits.
Drawings
FIG. 1 is a schematic diagram of a suspension pit excavation section;
FIG. 2 is a schematic view of a section of existing pipeline suspension protection;
FIG. 3 is a schematic view of an excavated section of a shallow working pit;
FIG. 4 is a schematic sectional view of the waterproof curtain;
FIG. 5 is a schematic plan view of the waterproof curtain;
FIG. 6 is a schematic view of a cast-in-place section of the blade foot;
FIG. 7 is a schematic view of a cast-in-place blade foot;
FIG. 8 is a schematic view of a symmetrical hoisting section of the first section of well wall;
FIG. 9 is a schematic view of a symmetrical hoisting plane of the first section of well wall;
FIG. 10 is a schematic view of a symmetrical lowering section of the first section of borehole wall;
FIG. 11 is a schematic cross-sectional view of a closed slot in the first section of the well wall;
FIG. 12 is a side view of the closed slot construction of the fore wall;
FIG. 13 isbase:Sub>A sectional view taken along line A-A of FIG. 12;
FIG. 14 is a schematic cross-sectional view of the symmetrical hoisting of the well wall of other sections;
FIG. 15 is a schematic view of a symmetrically lowered section of the well wall of the other section;
FIG. 16 is a schematic cross-sectional view of a closed slot of another section of the borehole wall;
fig. 17 is a cross-sectional view of a concrete bottom cover.
Description of reference numerals: 1-hanging a pit; 2-existing pipeline; 3-lifting a rope; 4-suspension buttress; 5-bailey beam; 6-ground; 7-shallow working pit; 8-waterproof curtain; 81-stirring piles; 82-I-steel; 9-edge foot; 10-a well wall; 101, a first well wall; 102-well wall two; 11-notches; 12-connecting ribs; 13-closing the notch; 14-concrete back cover; 15-scaffold; 16-transverse connecting tie bars; 17-longitudinal ribs; 18-notch inner mold; 19-notch outer mold.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to assist in understanding the invention. It should be noted that, for those skilled in the art, the present invention can be modified in several ways without departing from the principle of the present invention, and these modifications and modifications also fall into the protection scope of the claims of the present invention.
As an example, as shown in fig. 1 to 17, a closed open caisson after grooving a cross pipeline comprises: the method comprises the following steps of (1) forming an existing pipeline 2, a shallow working pit 7, a waterproof curtain 8, a blade foot 9, a well wall 10 and a closed notch 13; a suspension pit 1 is arranged on the ground 6, and a suspension section of the existing pipeline 2 is exposed in the suspension pit 1; the ground 6 outside the suspension pit 1 is provided with a Bailey beam 5 through a suspension buttress 4, the Bailey beam 5 is parallel to the existing pipeline 2, the Bailey beam 5 is arranged right above the existing pipeline 2, and the Bailey beam 5 is connected with the existing pipeline 2 through a lifting rope 3, so that the suspension protection of the existing pipeline 2 is realized; the width of the suspension pit 1 is 2.0-3.0 times of the diameter of the existing pipeline 2, the depth of the suspension pit 1 is consistent with the bottom elevation of the existing pipeline 2, and the length of the suspension pit 1 is consistent with the length of the suspension section of the existing pipeline 2.
The shallow working pit 7 is arranged below the existing pipeline 2; the bottom of the shallow working pit 7 is a plane, and the distance from the plane at the bottom of the shallow working pit 7 to the static distance of the existing pipeline 2 is 2.0-2.5 m, so that the operation construction of workers and equipment is facilitated; and a slope is set at a certain angle between the top excavation line and the bottom plane of the shallow working pit 7. And a waterproof curtain 8 is arranged on the bottom contour of the inner edge part working pit 7 in the soil body below the shallow part working pit 7, the waterproof curtain 8 is formed by adjacently connecting stirring piles 81, and the bottom depth of the waterproof curtain 8 exceeds the designed depth of the open caisson by 2.5-3.0 m. The diameter of the stirring pile 81 is larger than the width of the existing pipeline 2 and the width of the Bailey beam 5, and I-shaped steel 82 is arranged on the vertical axis in the stirring pile 81;
the outer diameter of the blade foot 9 is consistent with the inner length of the waterproof curtain 8; the well wall 10 comprises a first well wall 101 and a second well wall 102, the first well wall 101 and the second well wall 102 are axially and symmetrically arranged above the blade feet 9 along the existing pipeline 2, a gap is reserved between the first well wall 101 and the second well wall 102 to form a notch 11, and the width of the notch 11 is larger than that of the existing pipeline 2 and the Bailey beam 5; the first well wall 101 and the second well wall 102 are in closed connection at the notch 11 through a closed notch 13;
the closed notch 13 comprises transverse connecting ribs 16 and longitudinal ribs 17, the transverse connecting ribs 16 are arranged in the notch 11, two ends of the transverse connecting ribs 16 are respectively connected with the connecting ribs 12 of the first well wall 101 and the second well wall 102, and the longitudinal ribs 17 are arranged between the transverse connecting ribs 16; when the closed notch 13 is poured, a notch inner mold 18 is arranged on the outer side of the well wall 10, and a notch outer mold 19 is arranged on the inner side of the well wall 10.
The height of the cutting edge 9 is 1.5 m-2.0 m, a concrete back cover 14 is arranged on the inner side of the cutting edge 9, and the thickness of the concrete back cover 14 is larger than the height of the cutting edge 9. The height of the first well wall 101 and the second well wall 102 is 2-3 times of that of the blade foot 9.
Claims (6)
1. A transverse pipeline slotted open caisson, comprising: the device comprises an existing pipeline (2), a shallow working pit (7), a waterproof curtain (8), a blade foot (9), a well wall (10) and a closed notch (13); a suspension pit (1) is arranged on the ground (6), and the suspension section of the existing pipeline (2) is exposed in the suspension pit (1); a Bailey beam (5) is arranged on the ground (6) outside the suspension pit (1) through a suspension buttress (4), the Bailey beam (5) is parallel to the existing pipeline (2), the Bailey beam (5) is arranged right above the existing pipeline (2), and the Bailey beam (5) is connected with the existing pipeline (2) through a lifting rope (3);
the shallow working pit (7) is arranged below the existing pipeline (2); a waterproof curtain (8) is arranged in the soil body below the shallow working pit (7) along the bottom contour of the shallow working pit (7), the waterproof curtain (8) is formed by adjacent connection of stirring piles (81), the diameter of each stirring pile (81) is larger than the width of the existing pipeline (2) and the width of the Bailey beam (5), and I-shaped steel (82) is arranged on the vertical axis in each stirring pile (81);
the outer diameter of the blade foot (9) is consistent with the inner length of the waterproof curtain (8); the well wall (10) comprises a first well wall (101) and a second well wall (102), the first well wall (101) and the second well wall (102) are arranged above the blade feet (9) in an axisymmetric mode along the existing pipeline (2), a gap is reserved between the first well wall (101) and the second well wall (102) to form a notch (11), and the width of the notch (11) is larger than the width of the existing pipeline (2) and the width of the Bailey beam (5); a closed notch (13) is formed in the positions of the notches (11) of the first well wall (101) and the second well wall (102);
the closed notch (13) comprises transverse connecting ribs (16) and longitudinal ribs (17), the transverse connecting ribs (16) are arranged in the notch (11), two ends of each transverse connecting rib (16) are respectively connected with the connecting ribs (12) of the first well wall (101) and the second well wall (102), and the longitudinal ribs (17) are arranged between the transverse connecting ribs (16); the outer side of the well wall (10) is provided with a notch inner die (18), and the inner side of the well wall (10) is provided with a notch outer die (19).
2. The open caisson after cross pipeline channeling as claimed in claim 1, wherein: the width of the suspension pit (1) is 2.0-3.0 times of the diameter of the existing pipeline (2), the depth of the suspension pit (1) is consistent with the bottom elevation of the existing pipeline (2), and the length of the suspension pit (1) is consistent with the length of the suspension section of the existing pipeline (2).
3. The open caisson after grooving through the pipeline according to claim 1, wherein: the bottom of the shallow working pit (7) is a plane, the dead distance between the plane at the bottom of the shallow working pit (7) and the existing pipeline (2) is 2.0-2.5 m, and a certain gradient is formed between an excavation line at the top of the shallow working pit (7) and the plane at the bottom.
4. The open caisson after cross pipeline channeling as claimed in claim 1, wherein: the depth of the bottom of the waterproof curtain (8) exceeds the designed depth of the open caisson by 2.5m to 3.0m.
5. The open caisson after grooving through the pipeline according to claim 1, wherein: the height of the cutting edge (9) is 1.5-2.0 m, a concrete back cover (14) is arranged on the inner side of the cutting edge (9), and the thickness of the concrete back cover (14) is larger than the height of the cutting edge (9).
6. The open caisson after cross pipeline channeling as claimed in claim 1, wherein: the height of the first well wall (101) and the second well wall (102) is 2-3 times of that of the blade foot (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223014994.1U CN218757568U (en) | 2022-11-11 | 2022-11-11 | Transverse pipeline left groove and then closed open caisson |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223014994.1U CN218757568U (en) | 2022-11-11 | 2022-11-11 | Transverse pipeline left groove and then closed open caisson |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218757568U true CN218757568U (en) | 2023-03-28 |
Family
ID=85649533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223014994.1U Active CN218757568U (en) | 2022-11-11 | 2022-11-11 | Transverse pipeline left groove and then closed open caisson |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218757568U (en) |
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2022
- 2022-11-11 CN CN202223014994.1U patent/CN218757568U/en active Active
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