CN213477098U - Shaft concrete guide cutting structure - Google Patents
Shaft concrete guide cutting structure Download PDFInfo
- Publication number
- CN213477098U CN213477098U CN202021938990.0U CN202021938990U CN213477098U CN 213477098 U CN213477098 U CN 213477098U CN 202021938990 U CN202021938990 U CN 202021938990U CN 213477098 U CN213477098 U CN 213477098U
- Authority
- CN
- China
- Prior art keywords
- arc
- pipe
- positioning pipe
- shaft
- inner supporting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model relates to a shaft concrete guiding cutting structure, which comprises an existing shaft, an inner supporting positioning pipe, an inner supporting bolt and a lateral pressing pipe; hanging and moving anchor bolts are uniformly drilled on the inner side wall of the existing shaft along the height direction at intervals and are connected with the arc-shaped hanging plate; vertical guide cutting grooves are distributed in the gaps between the adjacent arc-shaped hanging plates; the bottom end of the inner supporting positioning pipe is vertically welded with a positioning pipe bottom plate, the inner supporting positioning pipe is inserted into the existing shaft, the positioning pipe bottom plate is connected with the inspection well foundation, and an inner supporting bolt on the outer wall of the inner supporting positioning pipe is connected with the arc-shaped hanging plate; the top beam of the positioning pipe is arranged at the top end of the inner support positioning pipe, and a jacking bolt is arranged at the top end of the inner support positioning pipe; and a lateral pressure pipe is arranged in the soil body around the well outside the existing shaft along the annular direction. The utility model has the advantages that: the utility model discloses set up the direction at the inside wall of existing pit shaft and cut the groove, can carry out accurate control to the cutting direction of cutting electric saw, reduced the degree of difficulty of existing pit shaft cutting.
Description
Technical Field
The utility model relates to a can reduce the pit shaft concrete excision construction degree of difficulty, improve the efficiency of construction to reducible existing pit shaft hangs and removes the pit shaft concrete direction excision structure of destroying the soil body disturbance all around the well, belongs to for drainage engineering field, is applicable to inspection shaft repair engineering.
Background
When the inspection well is used, the inspection well is affected by factors such as rain and sewage erosion, so that the conditions of local collapse and damage of the well shaft often occur, the stress of the well shaft is affected, and the surrounding environment is adversely affected. At present, when a shaft is repaired, the existing shaft is difficult to dismantle and construct, and the influence on the construction environment is large.
In the prior art, there is a method for installing and removing a safety plugging structure, which includes the following steps: measuring a pipeline needing to be plugged according to the field environment, and calculating a needed plugging raw material; piling up a first sand bag: manually conveying the raw materials into the pipeline through the inspection well, and meanwhile, accumulating sand bags in the pipeline along the water flow direction; constructing and constructing a plugging block after the first sand bag along the water flow direction; a sand pack accumulated behind the plugging block along the water flow direction; and removing the upper half part of the blocking block by means of protection of the second sand bag, then sequentially removing the second sand bag, then removing the lower half part of the blocking block by means of protection of the first sand bag, and finally sequentially removing the first sand bag, thereby finishing the whole work of removing the blocking. Although the condition that temporary plugging is needed when the inspection well is dismantled is considered in the technology, the actual construction difficulty is higher, and the disturbance can be generated on the soil body around the well, so that the problem of local collapse is easily generated.
In view of this, in order to reduce the difficulty of in-situ dismantling construction of a shaft of an inspection well, reduce the influence of construction on the surrounding environment, and improve the construction efficiency, the invention is urgently needed to provide a shaft concrete guide cutting structure which can reduce the difficulty of dismantling construction of the existing shaft, improve the construction efficiency, and reduce the disturbance of the existing shaft to soil around the shaft.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming not enough among the prior art, providing one kind and can reduce existing pit shaft and clear away the degree of difficulty, reduce the pit shaft concrete direction excision structure to the influence of the soil body on every side.
The shaft concrete guide cutting structure comprises an existing shaft, an arc-shaped hanging plate, an inner support positioning pipe, an inner support bolt and a lateral pressing pipe; hanging and moving anchor bolts are uniformly drilled on the inner side wall of the existing shaft along the height direction at intervals and are connected with the arc-shaped hanging plate; vertical guide cutting grooves are distributed in the gaps between the adjacent arc-shaped hanging plates; the bottom end of the inner supporting positioning pipe is vertically welded with a positioning pipe bottom plate, the inner supporting positioning pipe is inserted into the existing shaft, the positioning pipe bottom plate is connected with the inspection well foundation, and an inner supporting bolt on the outer wall of the inner supporting positioning pipe is connected with the arc-shaped hanging plate; the top beam of the positioning pipe is arranged at the top end of the inner support positioning pipe, and a jacking bolt is arranged at the top end of the inner support positioning pipe; a lateral pressure pipe is arranged in the soil body around the well outside the existing shaft along the annular direction, and external hoisting equipment is connected with the sling connecting rib; the electric saw control body connected with the cutting electric saw into a whole is inserted into the guide cutting groove, the cutting electric saw is provided with an electric saw blade, and the existing shaft is fixed through an inner supporting bolt.
Preferably, the method comprises the following steps: the arc-shaped hanging plate is formed by rolling a steel plate, the cross section of the arc-shaped hanging plate is in an arc shape, two rows of anchor bolt connecting holes are symmetrically formed in the arc-shaped hanging plate, sling connecting ribs are arranged at the top end of the arc-shaped hanging plate, and the arc-shaped hanging plate is arranged on the inner side wall of the existing shaft; the anchor bolt connecting hole plane comprises two rectangles with different widths, and the width of the rectangle close to the sling connecting rib is 2-4 cm wider than that of the rectangle below the sling connecting rib; the cross section of the sling connecting rib is U-shaped and is vertically welded and connected with the arc-shaped hanging plate; the number of the guide cutting grooves is 2-4, the guide cutting grooves are formed by rolling steel plates and are arranged in parallel to the axis of the existing shaft, and the guide cutting grooves are connected with the existing shaft through sliding groove anchor plates; the sliding groove anchor plate is formed by rolling a steel plate and is connected with the existing shaft through an anchor nail, and a T-shaped connecting sliding groove connected with the electric saw control position body is arranged on the guide cutting groove.
Preferably, the method comprises the following steps: the lateral pressure pipe is a steel pipe or a PVC pipe, pipe wall grouting holes are formed in the side wall of the lateral pressure pipe, and 1-3 lateral grouting pipes are arranged outside each existing shaft cutting block.
The utility model has the advantages that:
(1) the utility model discloses set up the direction at the inside wall of existing pit shaft and cut the groove, can carry out accurate control to the cutting direction of cutting electric saw, reduced the degree of difficulty of existing pit shaft cutting.
(2) The utility model discloses set up the side direction in the outside all soil bodies of well of existing pit shaft and pressed the pipe, press the pipe earlier and exert the roof pressure to the existing pit shaft block after the cutting through the side direction and press water injection mud in the all soil bodies of well, adopt the arc to hang the link plate again and hang and remove, not only reduced the degree of difficulty that existing pit shaft pulled out, reducible existing pit shaft hangs in addition and removes the disturbance to the all soil bodies of well.
Drawings
FIG. 1 is a schematic cross-sectional view of a shaft concrete guide cut-out structure of the present invention;
FIG. 2 is a schematic vertical sectional view of a shaft concrete guide cut-out structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the lateral crimp tube of FIG. 1;
fig. 4 is a plan view of the arcuate hanger plate of fig. 1 and 2.
Description of reference numerals: 1-existing wellbore; 2-soil body around the well; 3-hanging and moving anchor bolts; 4-arc hanging plate; 5, guiding a cutting groove; 6-internal supporting the positioning tube; 7-positioning the tube bottom plate; 8-inspection well foundation; 9-an inner supporting bolt; 10-positioning the pipe top beam; 11-jacking bolts; 12-pipe wall grouting holes; 13-lateral pressing tube; 14-cutting the electric saw; 15-electric saw control body; 16-an electric saw blade; 17-anchor bolt connecting hole; 18-sling attachment ribs; 19-chute anchor plate.
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 aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Referring to fig. 1 to 4, in the shaft concrete guide cutting structure, hoisting and moving anchor bolts 3 are uniformly arranged on the inner side wall of an existing shaft 1 at intervals along the height direction, and the hoisting and moving anchor bolts 3 are connected with an arc-shaped hoisting and hanging plate 4; vertical guide cutting grooves 5 are distributed in the gaps between the adjacent arc-shaped hanging plates 4; after the bottom end of the inner supporting positioning pipe 6 is vertically welded and connected with a positioning pipe bottom plate 7, the inner supporting positioning pipe 6 is inserted into a shaft of the existing shaft 1, the positioning pipe bottom plate 7 is connected with an inspection well foundation 8, and an inner supporting bolt 9 on the outer wall of the inner supporting positioning pipe 6 is connected with the arc-shaped hanging plate 4; placing a positioning tube top beam 10 at the top end of the inner support positioning tube 6, and applying top pressure to the inner support positioning tube 6 through a top pressure bolt 11; firstly, a lateral pressure pipe 13 is arranged in a soil body 2 around a well outside an existing shaft 1 along the annular direction, and external hoisting equipment is connected with a sling connecting rib 18; then inserting an electric saw control body 15 which is connected with a cutting electric saw 14 into a whole into the guide cutting groove 5, adopting an electric saw blade 16 to vertically cut the existing shaft 1, and adopting an inner supporting bolt 9 to fix the existing shaft 1; then, soil body 2 around the well on the periphery of the block body of the existing well shaft 1 to be pulled out is pressed into slurry through a lateral pressure pipe 13, and after the block body of the existing well shaft 1 is loosened, hoisting construction of the existing well shaft 1 is carried out.
The inner diameter of the existing shaft 1 is 1000mm, and the concrete is poured by adopting a concrete material with the strength grade of C35.
The soil body 2 around the well is sandy soil in a hard plastic state.
The hoisting anchor bolt 3 adopts an expansion bolt with the diameter of 20 mm.
The arc-shaped hanging plate 4 is formed by rolling a steel plate with the thickness of 10mm, the cross section of the arc-shaped hanging plate is arc-shaped, two rows of the arc-shaped hanging plate are symmetrically provided with 4 anchor bolt connecting holes 17, and the top end of the arc-shaped hanging plate is provided with a sling connecting rib 18. The plane of the anchor bolt connecting hole 17 comprises two rectangles with different widths, and the width of the rectangle close to the sling connecting rib 18 is 2cm wider than that of the rectangle below the sling connecting rib; the sling connecting rib 18 is U-shaped in section, is formed by rolling a steel bar with the diameter of 10mm, and is vertically welded and connected with the arc-shaped hanging plate 4.
The guide cutting groove 5 is formed by rolling a steel plate with the thickness of 2mm, is arranged parallel to the axis of the existing shaft 1, and is connected with the existing shaft 1 through a sliding groove anchor plate 19; the chute anchor plate 19 is formed by rolling a steel plate with the thickness of 2mm and is connected with the existing shaft 1 through an anchor nail; a T-shaped connecting sliding groove connected with the electric saw control body 15 is arranged on the guiding cutting groove 5; the electric saw control body 15 is formed by rolling a steel plate with the thickness of 10 mm.
The inner supporting positioning pipe 6 is made of a steel pipe with the strength grade of Q345D and the specification of phi 100 multiplied by 8.
The positioning tube bottom plate 7 is formed by rolling a steel plate with the thickness of 10mm, and the diameter of the positioning tube bottom plate is 200 mm.
The inspection well foundation 8 is cast by concrete material with the strength grade of C35.
The inner supporting bolt 9 is composed of a high-strength screw rod with the diameter of 30mm and a bolt.
The positioning tube top beam 10 is formed by rolling a steel plate with the thickness of 2mm, the cross section of the positioning tube top beam is rectangular, the width of the positioning tube top beam is 30cm, the height of the positioning tube top beam is 10cm, and a screw hole connected with the jacking bolt 11 is formed in the positioning tube top beam.
The jacking bolt 11 is a high-strength screw rod with the diameter of 60mm and is in threaded connection with a connecting screw hole on the top beam 10 of the positioning tube.
The lateral pressure pipe 13 is a steel pipe with the diameter of 60mm, pipe wall grouting holes 12 are formed in the side wall of the steel pipe, 2 lateral grouting pipes are arranged outside the cutting block body of each existing shaft 1, the pipe wall grouting holes 12 are circular, the diameter of each pipe wall grouting hole is 30mm, and grouting materials are cement paste.
The cutting electric saw 14 adopts an electric concrete cutting machine with the model number of QG40-50 and adopts manpower to control lifting and lowering for cutting.
The electric saw blade 16 is a stainless steel blade having a diameter of 200 mm.
Claims (3)
1. Pit shaft concrete direction excision structure, its characterized in that: comprises an existing shaft (1), an arc hanging plate (4), an inner support positioning pipe (6), an inner support bolt (9) and a lateral pressing pipe (13); hanging and moving anchor bolts (3) are uniformly drilled on the inner side wall of the existing shaft (1) at intervals along the height direction, and the hanging and moving anchor bolts (3) are connected with an arc-shaped hanging plate (4); vertical guide cutting grooves (5) are distributed in the gaps between the adjacent arc-shaped hanging plates (4); the bottom end of an inner supporting positioning pipe (6) is vertically welded with a positioning pipe bottom plate (7), the inner supporting positioning pipe (6) is inserted into the existing shaft (1), the positioning pipe bottom plate (7) is connected with an inspection well foundation (8), and an inner supporting bolt (9) on the outer wall of the inner supporting positioning pipe (6) is connected with an arc-shaped hanging plate (4); the positioning tube top beam (10) is arranged at the top end of the inner supporting positioning tube (6), and a top pressing bolt (11) is arranged at the top end of the inner supporting positioning tube (6); a lateral pressure pipe (13) is arranged in a soil body (2) around the well outside the existing shaft (1) along the circumferential direction, and external hoisting equipment is connected with a sling connecting rib (18); an electric saw control body (15) which is connected with the cutting electric saw (14) into a whole is inserted into the guide cutting groove (5), the cutting electric saw (14) is provided with an electric saw blade (16), and the existing shaft (1) is fixed through an inner supporting bolt (9).
2. The wellbore concrete guide cut structure of claim 1, wherein: the arc-shaped hanging plate (4) is formed by rolling a steel plate, the cross section of the arc-shaped hanging plate is arc-shaped, two rows of anchor bolt connecting holes (17) are symmetrically formed in the arc-shaped hanging plate, sling connecting ribs (18) are arranged at the top end of the arc-shaped hanging plate (4), and the arc-shaped hanging plate (4) is arranged on the inner side wall of the existing shaft (1); the plane of the anchor bolt connecting hole (17) comprises two rectangles with different widths, and the width of the rectangle close to the sling connecting rib (18) is 2-4 cm wider than that of the rectangle below the sling connecting rib; the cross section of the sling connecting rib (18) is U-shaped and is vertically welded and connected with the arc-shaped hanging plate (4); the number of the guide cutting grooves (5) is 2-4, the guide cutting grooves are formed by rolling steel plates and are arranged in parallel to the axis of the existing shaft (1), and the guide cutting grooves (5) are connected with the existing shaft (1) through sliding groove anchor plates (19); the sliding groove anchor plate (19) is formed by rolling a steel plate and is connected with the existing shaft (1) through an anchor nail, and a T-shaped connecting sliding groove connected with the electric saw control body (15) is arranged on the guide cutting groove (5).
3. The wellbore concrete guide cut structure of claim 1, wherein: the lateral pressure pipe (13) is a steel pipe or a PVC pipe, a pipe wall grouting hole (12) is formed in the side wall of the lateral pressure pipe, and 1-3 lateral grouting pipes are arranged outside the cutting block body of each existing shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021938990.0U CN213477098U (en) | 2020-09-07 | 2020-09-07 | Shaft concrete guide cutting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021938990.0U CN213477098U (en) | 2020-09-07 | 2020-09-07 | Shaft concrete guide cutting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213477098U true CN213477098U (en) | 2021-06-18 |
Family
ID=76417979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021938990.0U Active CN213477098U (en) | 2020-09-07 | 2020-09-07 | Shaft concrete guide cutting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213477098U (en) |
-
2020
- 2020-09-07 CN CN202021938990.0U patent/CN213477098U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6010070B2 (en) | Temporary closing method for existing underwater structures | |
| KR20210130725A (en) | Reinforcement device and method for local freezing reinforcement in deep pits in gravel strata containing large amounts of water | |
| CN111622268B (en) | Protection construction method based on large rigid box culvert penetrating under power pipe gallery | |
| CN109537579B (en) | Construction method of cast-in-situ bored pile | |
| CN111593741A (en) | Pipeline groove supporting device and construction method | |
| CN105604064A (en) | Construction method of comprehensive pipeline protection system supporting system | |
| CN113074003B (en) | Small clear distance tunnel deformation inhibition method for argillaceous sandstone stratum | |
| CN211848785U (en) | Cast-in-place concrete road terrace template quick supporting and dismounting device | |
| CN212052921U (en) | Foundation pit enclosure leakage repairing structure | |
| CN212452681U (en) | In-situ protection device for pressure pipeline in underground foundation pit | |
| CN213477098U (en) | Shaft concrete guide cutting structure | |
| JP6068774B1 (en) | Earth retaining prior construction method using adjustable erection | |
| CN108193695B (en) | Subway station foundation pit support structure support and construction method | |
| CN111794343B (en) | Construction method for connecting pipeline ditch with integrated sewer | |
| CN203684235U (en) | Novel combined type groove excavation supporting device | |
| CN113266019A (en) | Construction method of foundation pit steel pipe support system | |
| CN216238605U (en) | Well plugging device for dewatering well | |
| CN105756067B (en) | A kind of method of horizontal temporary support support replacement in deep basal pit | |
| CN212534232U (en) | Protection device for construction of penetrating large-scale rigid box culvert under power pipe gallery | |
| CN216865394U (en) | A device of plugging into that is used for new and old bilge well not stopping water and plugs into | |
| CN103669370B (en) | Recoverable combined groove excavation foundation fit supporting device and construction method | |
| CN211117964U (en) | Hoop device for vertically lowering vertical shaft of shaft expanded excavation pipeline | |
| CN220228058U (en) | Steel plate grating for assembled artificial tunneling jacking pipe construction | |
| CN213897412U (en) | Device for connecting pipeline ditch with integrated sewer | |
| CN212563252U (en) | Integral cast-in-place concrete entrance to a cave watertight fittings in push pipe construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |