CN111926822A - Traffic cable line tunnel construction method and fender post mounting structure - Google Patents
Traffic cable line tunnel construction method and fender post mounting structure Download PDFInfo
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- CN111926822A CN111926822A CN202010744878.1A CN202010744878A CN111926822A CN 111926822 A CN111926822 A CN 111926822A CN 202010744878 A CN202010744878 A CN 202010744878A CN 111926822 A CN111926822 A CN 111926822A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/18—Placing by vibrating
Abstract
The application relates to a traffic cable line tunnel construction method and a fender post installation structure, which comprise a steel sheet pile, a first steel support and a second steel support, wherein an angle steel bracket is fixedly arranged on the steel sheet pile, a steel enclosing purlin is placed on the angle steel bracket, supporting blocks are fixedly connected to two ends of the first steel support and two ends of the second steel support, a concave block is fixedly connected to the steel enclosing purlin, the concave block is provided with a concave groove, one end of the concave groove, which is far away from the steel sheet pile, is provided with an opening, the other end of the concave groove is provided with a closing device, and a fixing assembly is arranged between the concave block and the supporting blocks; an adjusting component is arranged between the concave block and the supporting block. This application has the effect of ensureing that first way steel shotcrete and second way steel shotcrete enclose between the purlin with the steel that corresponds, ensures traffic cable line tunnel construction quality, improves the construction progress.
Description
Technical Field
The application relates to the field of cable line construction, in particular to a traffic cable line tunnel construction method and a fender post installation structure.
Background
At present, with the scale of cities in China being multiplied, the problem of backward infrastructure appears, and the contradiction between urban transportation and transportation is increasingly prominent in recent years. The urban rail transit has the advantages of safety, punctuality and rapidness, and plays an increasingly important role in widening urban space, building an urban rapid three-dimensional traffic network and improving urban traffic environment. According to the requirements of urban sustainable development and urban traffic healthy development, urban rail transit projects are actively planned and constructed in all big cities in the country, urban rail transit transmission and transformation lines inherit the characteristics of subway construction, the occupied ground space is reduced as little as possible, and the influence on urban development is reduced, so that the underground cable tunnel saves space, the cable laying mode with better safety performance is widely used, but the requirement for higher protection of cable tunnel construction excavation is continuously met by construction to a deeper underground part.
Now, a chinese patent with a patent publication number of CN108842819B is retrieved, and discloses a construction method of an urban rail transit cable line tunnel, which comprises the following steps: step S1, measuring and paying off; step S2, constructing the fender post; step S3, mounting a steel support; step S4, earth excavation; step S5, construction of a bottom plate structure: constructing the tunnel structure by adopting a segmentation method; continuously constructing a steel plate pile section and a cast-in-place pile, and constructing a cast-in-place pile section structure after the cast-in-place pile section reaches the strength; s6, dismantling the steel support; step S7, construction joint processing; step S8, constructing side wall and top plate structures; and step S9, backfilling the lateral and top plate earthwork. The invention adopts the integrated foundation pit supporting technology of combining the enclosure structure steel sheet pile with the cast-in-place pile construction, and the enclosure piles are driven into the foundation to be connected with each other to form a whole, thereby reducing the construction cost, reducing the environmental damage and improving the construction efficiency; through the upper and lower two steel supports, adopt I-steel and add the welding through-length steel sheet and batten plate and the floor connection becomes a atress whole, improves the safety and stability of supporting the system.
Aiming at the related technologies, the inventor thinks that the steel support is erected and suspended on the steel enclosing purlin by adopting the manual matching hoisting equipment, and because the field construction condition is severe, the end part of the steel support and the steel enclosing purlin are fixed and limited only by the adjustable head, and the position stability of the steel support is not only ensured.
Disclosure of Invention
In order to ensure that the steel support and the steel enclosing purlin are fixed and stable, the application provides a traffic cable line tunnel construction method and an enclosing pile mounting structure.
First aspect, the application provides a fender post mounting structure is used in traffic cable way tunnel construction, adopts following technical scheme:
a fender post mounting structure for traffic cable line tunnel construction comprises a steel sheet pile, a first steel support and a second steel support, wherein an angle steel support is fixedly arranged on the steel sheet pile, a steel purlin used for fixing the first steel support or the second steel support is placed on the angle steel support, supporting blocks are fixedly connected to two ends of the first steel support and two ends of the second steel support, a concave block used for placing the supporting blocks is fixedly connected to the steel purlin, a concave groove is formed in the concave block, one end, away from the steel sheet pile, of the concave groove is provided with an opening, the other end of the concave groove is provided with a closed setting, and a fixing assembly used for achieving vertical fixing is arranged between the concave block and the supporting blocks; and an adjusting component for limiting the supporting block to move along the length direction of the first steel support is arranged between the concave block and the supporting block.
By adopting the technical scheme, the steel sheet pile is inserted and beaten by adopting a self-vibrating type special machine for the steel sheet pile, and then is buried in the ground, the steel enclosing purlin and the angle iron bracket are fixed by adopting an anti-falling device in engineering design, the effect of fixing and stabilizing the steel enclosing purlin and the angle iron bracket is achieved, the first steel enclosing purlin and the second steel support are sequentially placed on the steel enclosing purlin, the first steel support is positioned above the second steel support, in the process of installing the first steel support and the second steel support, the supporting block is positioned in the concave groove of the concave block, and under the action of the fixing component, the fixing effect of the supporting block along the vertical direction is achieved; in order to facilitate the suspension work, when the supporting block is placed in the concave groove, the end part of the supporting block is not abutted against the end part of the concave groove, so that the fixing effect of the supporting block and the concave block in the length direction of the first steel support is realized under the action of the adjusting assembly.
Preferably, the fixing component comprises a concave sleeve covering the concave block and a bolt in threaded connection with the side wall of the concave sleeve, the concave block and the supporting block are both located in the concave sleeve, a threaded hole is formed in the side face of the concave sleeve, and the bolt penetrates through the concave sleeve and then abuts against the side wall of the concave block.
Through adopting above-mentioned technical scheme, the drive bolt rotates, and the bolt moves towards concave type piece along the screw hole axial, under the effect of frictional force between bolt tip and concave type piece, realizes the fixed effect of extrusion between concave type cover and the concave type piece, ensures the limiting displacement of concave type cover to the vertical direction of supporting shoe.
Preferably, the concave sleeve is fixedly connected with a nut outside the opening of the threaded hole, and the bolt is in threaded connection with the nut.
Through adopting above-mentioned technical scheme, nut and bolt are threaded connection, strengthen the intensity of hookup location between bolt and the concave type cover, even when the supporting shoe applyed the effort upwards to concave type cover, concave type cover still covers and is located outside the concave type piece.
Preferably, the concave block is provided with a plug hole for plugging the bolt.
Through adopting above-mentioned technical scheme, the drive bolt rotates and moves towards concave type piece direction along the screw hole, and when the bolt was pegged graft in the spliced eye, the motion of the vertical direction of concave type cover was restricted by bolt and spliced eye inner wall.
Preferably, the adjusting assembly comprises a plurality of first frames fixedly connected with the supporting blocks and a plurality of second frames fixedly connected with the concave blocks, the vertical planes where the first frames and the second frames are located are parallel to the side walls of the supporting blocks, the two first frames and the two second frames are arranged in a staggered and inserted manner, and limiting parts for ensuring the supporting blocks to be fixed and stable are arranged between the first frames and the second frames.
Preferably, the limiting member is provided with a plurality of steel bars, the first frame and the second frame are both provided with a plurality of through holes, and the steel bars sequentially pass through the first frame and the second frame and continue to pass through the first frame and the second frame.
By adopting the technical scheme, when the supporting block is placed in the concave block along the vertical direction, the two first frames and the two second frames are mutually staggered and spliced, the steel bars sequentially pass through the first frames and the second frames and then continue to pass through the first frames and the second frames, and under the limiting action of the steel bars, the movement of the supporting block and the concave block along the length direction of the first steel support is limited, so that the position stabilizing effect of the first steel support and the second steel support is ensured.
In a second aspect, the present application provides a traffic cable line tunnel construction method, which adopts the following technical scheme:
a construction method of a traffic cable line tunnel comprises the following steps,
s1: measuring and paying off;
s2: constructing a fender pile, and driving a steel sheet pile;
s3: installing steel supports, excavating a foundation pit in a longitudinal segmented manner, placing a steel purlin on an angle iron bracket, and respectively installing a first steel support and a second steel support;
s4: excavating earth;
s5: constructing a bottom plate structure;
s6: dismantling the steel supports, namely dismantling a second steel support, a first steel support and a steel sheet pile in sequence; after the pile body is pulled out, the pile hole is timely backfilled with graded sandstone;
when the steel sheet pile is constructed, the allowable deviation of the axis is +/-10 cm, the allowable deviation of the pile top elevation is 10cm, and the verticality is not higher than +/-1%.
Preferably, the screw thread of the concave block is provided with at least two screws located on the same vertical plane, and a plurality of bubble levels are placed at the end parts of the screws.
Preferably, a horizontal disc is fixedly connected to the end of the screw.
By adopting the technical scheme, the control pile is measured and released on the leveled working surface; measuring the positions of the central line and the drainage ditch of the foundation pit fender pile, controlling the pile according to three on-site benchmarks, measuring the temporary control pile of the foundation pit fender pile, inserting and driving by adopting a self-vibrating type special machine for steel sheet piles, and installing the steel sheet piles, wherein the allowable deviation of the axis of the steel sheet piles during construction is +/-10 cm, the allowable deviation of the pile top elevation is 10cm, and the verticality is not higher than +/-1%; because the steel sheet pile is mechanically driven by inserting, in order to prevent the deviation of the steel sheet pile along the vertical plane where the length direction of the supporting block is located, the abutted surfaces of the concave block and the supporting block are not horizontal, the initial positions of the end parts of the four screws are located on the same horizontal plane, when the steel sheet pile deviates along the vertical plane where the length direction of the supporting block is located, the corresponding screws are driven to rotate until bubbles in the bubble levels on the four horizontal discs are located at the central position, and the supporting block is ensured to be in a horizontal state when being placed on the four horizontal discs; placing a supporting block in a groove on a concave block, limiting the vertical movement of the supporting block by a concave sleeve under the extrusion clamping action of a bolt and a nut, sequentially passing a reinforcing steel bar through a first frame and a second frame, and then continuously passing the reinforcing steel bar through the first frame and the second frame to realize the fixing effect of the supporting block and the concave block along the length direction, finally, sequentially removing a second steel support, a first steel support and a steel sheet pile when a rigid support is removed, and backfilling with plain concrete to play a role in support replacement when the second steel support is removed; after the pile body is pulled out, the pile hole is timely backfilled with graded sandstone.
In summary, the present application includes at least one of the following beneficial technical effects:
1. sequentially placing a first steel support and a second steel support between the two steel purlins, wherein the supporting block is positioned in a concave groove of the concave block, the concave sleeve is covered outside the concave block, the inner wall of the concave sleeve is abutted against the upper side surface of the supporting block, the bolt is driven to rotate and move along the axial direction of the nut and the threaded hole, and the bolt is inserted in the insertion hole, so that the fixing effect of the supporting block in the vertical direction is realized;
2. the two first frames and the two second frames are arranged at intervals, and the reinforcing steel bars sequentially pass through the first frames and the second frames and then continue to pass through the first frames and the second frames, so that the fixing effect of the first steel support and the second steel support is achieved;
3. when the steel sheet pile is deviated along the vertical plane where the length direction of the supporting block is located, the corresponding screw is driven to rotate until bubbles in the bubble levels on the four horizontal discs are located at the central position, and the supporting block is ensured to be in a horizontal state when being placed on the four horizontal discs.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of the present application;
FIG. 2 is a vertical cross-sectional view of a female block, support block, female sleeve, bolt, and nut in accordance with an embodiment of the present application;
FIG. 3 is an enlarged view at A in FIG. 1;
fig. 4 is a process flow diagram of the second embodiment of the present application.
Reference numerals: 1. steel sheet piles; 2. a first steel support; 3. a second steel support; 4. a support block; 5. a concave block; 6. a concave groove; 7. a concave sleeve; 8. a bolt; 9. a nut; 10. inserting holes; 11. a first frame; 12. a second frame; 13. reinforcing steel bars; 14. a through hole; 15. a screw; 16. a horizontal tray; 17. steel purlin; 18. an angle iron bracket.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
Example one
Referring to fig. 1 and 2, the embodiment of the application discloses a fender post mounting structure for traffic cable line tunnel construction, which comprises a steel sheet pile 1, a first steel support 2 and a second steel support 3, wherein the steel sheet pile 1 is inserted and beaten by adopting a self-vibrating type special machine for the steel sheet pile 1 and then embedded into the ground, the steel sheet pile 1 is fixedly connected with an angle iron bracket 18, the angle iron bracket 18 is provided with a steel purlin 17 for fixing the first steel support 2 or the second steel support 3, the steel purlin 17 and the angle iron bracket 18 are fixed by adopting an anti-falling device in engineering design, the first steel support 2 and the second steel support 3 are both fixedly connected with supporting blocks 4, the steel purlin 17 is fixedly connected with concave blocks 5 for placing the supporting blocks 4, the concave blocks 5 are provided with concave grooves 6 with upper end surfaces being openings, one ends of the concave grooves 6 far away from the steel sheet pile 1 are provided with openings, and the other end is provided with an opening.
Referring to fig. 2 and 3, a first steel support 2 and a second steel support 3 are sequentially placed to positions between two steel enclosing purlins 17, two supporting blocks 4 are respectively placed in two concave grooves 6, the supporting blocks 4 are located in the concave grooves 6, in order to achieve the fixing effect of the supporting blocks 4 in the vertical direction, a fixing component used for achieving fixing in the vertical direction is arranged between the concave blocks 5 and the supporting blocks 4, the fixing component comprises a concave sleeve 7 and a bolt 8, the concave sleeve 7 is arranged outside the concave blocks 5 in a covering mode, the bolt 8 is in threaded connection with the side wall of the concave sleeve 7, the concave sleeve 7 is arranged outside the concave blocks 5 in a covering mode, the inner wall of the concave sleeve 7 is abutted to the outer wall of the supporting block 4, and movement of the supporting block 4 in the vertical direction is limited by the concave.
The side wall of the concave sleeve 7 is provided with a threaded hole, the bolt 8 penetrates through the concave sleeve 7 and then abuts against the side wall of the concave block 5, the side wall of the concave block 5 is provided with an inserting hole 10 for inserting the bolt 8, the bolt 8 is driven to rotate and moves towards the direction of the concave block 5 along the threaded hole, and when the bolt 8 is inserted into the inserting hole 10, the vertical movement of the concave sleeve 7 is limited by the bolt 8 and the inner wall of the inserting hole 10; in order to enhance the strength of the threaded connection position of the concave sleeve 7 and the bolt 8, the concave sleeve 7 is fixedly connected with a nut 9 at the opening of the threaded hole, and when the supporting block 4 exerts an upward acting force on the concave sleeve 7, the limiting effect of the concave sleeve 7 on the vertical direction of the supporting block 4 is ensured under the reinforcing effect of the nut 9.
For the convenience of suspension work, when the supporting block 4 is placed in the concave groove 6, the end of the supporting block 4 is not abutted to the end of the concave groove 6, so that the movement of the supporting block 4 along the length direction of the first steel support 2 needs to be limited, an adjusting component for limiting the movement of the supporting block 4 along the length direction of the first steel support 2 is arranged between the concave block 5 and the supporting block 4, the adjusting component comprises two first frames 11 fixedly connected with the bottom wall of the supporting block 4 and two second frames 12 fixedly connected with the concave block 5, when the supporting block 4 is located in the concave groove 6, the first frames 11 are located outside the concave block 5, and the vertical planes of the first frames 11 and the second frames 12 are both parallel to the side wall of the supporting block 4.
When the supporting block 4 is placed in the concave block 5 along the vertical direction, the two first frames 11 and the two second frames 12 are inserted in a staggered manner, a limiting part for ensuring that the supporting block 4 is fixed and stable is arranged between the first frames 11 and the second frames 12, the limiting part is set to be two steel bars 13, through holes 14 are formed in the two side edges of the first frames 11 along the vertical direction, the steel bars 13 sequentially penetrate through the first frames 11 and the second frames 12 and then sequentially penetrate through the first frames 11 and the second frames 12, under the limiting action of the steel bars 13, the movement of the supporting block 4 and the concave block 5 along the length direction of the first steel support 2 is limited, and the position stabilizing effect of the first steel support 2 and the second steel support 3 is ensured.
The implementation principle of the embodiment is as follows: when the steel sheet pile 1 is driven into the ground, the steel enclosing purlin 17 is placed on the angle steel support 18 through suspension, the anti-falling device in design is adopted to achieve the fixing effect of the steel enclosing purlin 17 and the angle steel support 18, the first steel support 2 and the second steel support 3 are sequentially placed between the two steel enclosing purlins 17, the supporting block 4 is located in the concave groove 6 of the concave block 5, the concave sleeve 7 is covered outside the concave block 5, the inner wall of the concave sleeve 7 is abutted to the upper side face of the supporting block 4, the bolt 8 is driven to rotate and moves along the axial direction of the nut 9 and the threaded hole, the bolt 8 is inserted into the insertion hole 10, and the fixing effect of the supporting block 4 in the vertical direction is achieved; simultaneously, two first frames 11 and two second frames 12 set up at interval each other, pass first frame 11 and second frame 12 with reinforcing bar 13 in proper order after passing first frame 11 and second frame 12 and continue to pass first frame 11 and second frame 12, accomplish the fixed effect to first way steel shotcrete 2 and second way steel shotcrete 3.
Example two
Referring to fig. 1 and 4, the embodiment of the application also discloses a traffic cable line tunnel construction method, which comprises the following steps,
s1: measuring and paying off; measuring and releasing a control pile on the leveled working surface; and measuring the positions of the central line and the drainage ditch of the foundation pit fender pile, controlling the pile according to three on-site benchmarks, and measuring the temporary control pile of the foundation pit fender pile.
S2: constructing a fender pile, namely inserting and driving a self-vibrating special machine for the steel sheet pile 1, and installing the steel sheet pile 1, wherein the allowable deviation of an axis is +/-10 cm, the allowable deviation of a pile top elevation is 10cm, and the verticality is not higher than +/-1% when the steel sheet pile 1 is constructed; because the steel sheet pile 1 is mechanically driven by inserting, in order to prevent the surface of the steel sheet pile 1, which is abutted against the supporting block 4, of the concave block 5 from being not horizontal due to the deviation of the vertical plane along the length direction of the supporting block 4, the concave block 5 is threaded with four screws 15 positioned on the same vertical plane, the end part of each screw 15 is fixedly connected with a horizontal disc 16, and a bubble level gauge is placed on each horizontal disc 16; the initial positions of the end parts of the four screws 15 are located on the same horizontal plane, when the position of the steel sheet pile 1 deviates along the vertical plane in the length direction of the supporting block 4, the corresponding screws 15 are driven to rotate until the air bubbles in the bubble levels on the four horizontal discs 16 are located at the central position, and the supporting block 4 is ensured to be in a horizontal state when being placed on the four horizontal discs 16 (as shown in fig. 3).
S3: installing steel supports, excavating foundation pits in a longitudinal segmented mode, placing steel purlins 17 on angle steel supports 18, installing anti-falling devices according to design requirements, fixing the steel purlins 17 and the angle steel supports 18, and installing the first steel supports 2 when the steel supports 2 are excavated to a position 0.5 m below the design elevation; when the depth of the excavation foundation pit reaches 0.5 m below the design elevation of the second steel support 3, mounting the second steel support 3; in the process of mounting the first steel support 2 and the second steel support 3, the supporting block 4 is positioned in the concave groove 6 of the concave block 5, the concave sleeve 7 is covered outside the concave block 5, and the bolt 8 is in threaded connection with the nut 9 and is inserted into the insertion hole 10 after penetrating through the threaded hole; meanwhile, the reinforcing bars 13 are sequentially passed through the first frame 11 and the second frame 12 and then sequentially passed through the first frame 11 and the second frame 12 (as shown in fig. 3).
S4: and (4) excavating earthwork, wherein the excavation work of the lower layer of earthwork can be carried out after the excavation of each layer of earthwork is finished and the steel supports are erected.
S5: and (5) constructing a bottom plate structure, wherein the tunnel structure is constructed in a sectional manner.
S6: dismantling the steel supports, namely dismantling a second steel support 3, a first steel support 2 and a steel sheet pile 1 in sequence; after the pile body is pulled out, the pile hole is timely backfilled with graded sandstone.
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 (9)
1. The utility model provides a traffic cable line tunnel construction is with fender pile mounting structure, includes steel sheet pile (1), first way steel shotcrete (2) and second way steel shotcrete (3), steel sheet pile (1) is fixed to be provided with angle iron bracket (18), angle iron bracket (18) have been placed and have been used for fixing steel of first way steel shotcrete (2) or second way steel shotcrete (3) encloses purlin (17), its characterized in that: supporting blocks (4) are fixedly connected to two ends of the first steel support (2) and two ends of the second steel support (3), a concave block (5) used for placing the supporting blocks (4) is fixedly connected to the steel purlin (17), a concave groove (6) is formed in the concave block (5), one end, away from the steel sheet pile (1), of the concave groove (6) is arranged in an open mode, the other end of the concave groove is arranged in a closed mode, and a fixing assembly used for achieving fixing in the vertical direction is arranged between the concave block (5) and the supporting blocks (4); an adjusting component for limiting the supporting block (4) to move along the length direction of the first steel support (2) is arranged between the concave block (5) and the supporting block (4).
2. The fender pile mounting structure for traffic cable lane tunnel construction according to claim 1, wherein: the fixing assembly comprises a concave sleeve (7) and a bolt (8), the concave sleeve (7) is arranged outside the concave block (5) in a covering mode, the bolt (8) is in threaded connection with the side wall of the concave sleeve (7), the concave block (5) and the supporting block (4) are located in the concave sleeve (7), a threaded hole is formed in the side face of the concave sleeve (7), and the bolt (8) penetrates through the concave sleeve (7) and then abuts against the side wall of the concave block (5).
3. The fender pile mounting structure for traffic cable lane tunnel construction according to claim 2, wherein: the concave sleeve (7) is fixedly connected with a nut (9) outside the opening of the threaded hole, and the bolt (8) is in threaded connection with the nut (9).
4. The fender pile mounting structure for traffic cable lane tunnel construction according to claim 3, wherein: the concave block (5) is provided with a plug hole (10) for plugging the bolt (8).
5. The fender pile mounting structure for traffic cable lane tunnel construction according to claim 1, wherein: the adjusting assembly comprises a plurality of first frames (11) fixedly connected with the supporting block (4) and a plurality of second frames (12) fixedly connected with the concave block (5), the vertical planes where the first frames (11) and the second frames (12) are located are parallel to the side wall of the supporting block (4), the two first frames (11) and the two second frames are arranged in a staggered and inserted mode, and a limiting piece for ensuring that the supporting block (4) is fixed and stable is arranged between the first frames (11) and the second frames (12).
6. The fender pile mounting structure for traffic cable lane tunnel construction according to claim 5, wherein: the limiting member is provided with a plurality of reinforcing steel bars (13), a plurality of through holes (14) are formed in the first frame (11) and the second frame (12), and the reinforcing steel bars (13) sequentially penetrate through the first frame (11) and the second frame (12) and continuously penetrate through the first frame (11) and the second frame (12).
7. A traffic cable lane tunnel construction method using the fender post installation structure for traffic cable lane tunnel construction according to any one of claims 1 to 6, characterized in that: comprises the following steps of (a) carrying out,
s1: measuring and paying off;
s2: constructing a fender pile, and driving a steel sheet pile (1);
s3: installing steel supports, excavating a foundation pit in a longitudinal segmentation manner, placing a steel purlin (17) on an angle steel bracket (18), and respectively installing a first steel support (2) and a second steel support (3);
s4: excavating earth;
s5: constructing a bottom plate structure;
s6: dismantling the steel supports, namely dismantling a second steel support (3), a first steel support (2) and a steel sheet pile (1) in sequence; after the pile body is pulled out, the pile hole is timely backfilled with graded sandstone;
wherein, the allowable deviation of the axis is +/-10 cm when the steel sheet pile (1) is constructed, the allowable deviation of the pile top elevation is 10cm, and the verticality is not higher than +/-1%.
8. The traffic cable lane tunnel construction method according to claim 7, wherein: the concave block (5) is provided with at least two screws (15) which are positioned on the same vertical plane in a threaded manner, and the end parts of the plurality of screws (15) are provided with bubble levels.
9. The traffic cable lane tunnel construction method according to claim 8, wherein: the end part of the screw (15) is fixedly connected with a horizontal disc (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010744878.1A CN111926822A (en) | 2020-07-29 | 2020-07-29 | Traffic cable line tunnel construction method and fender post mounting structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010744878.1A CN111926822A (en) | 2020-07-29 | 2020-07-29 | Traffic cable line tunnel construction method and fender post mounting structure |
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