CN116378493A - Overhead line pole suspension protection device above open cut underground space and construction method - Google Patents
Overhead line pole suspension protection device above open cut underground space and construction method Download PDFInfo
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- CN116378493A CN116378493A CN202310650879.3A CN202310650879A CN116378493A CN 116378493 A CN116378493 A CN 116378493A CN 202310650879 A CN202310650879 A CN 202310650879A CN 116378493 A CN116378493 A CN 116378493A
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- 238000010276 construction Methods 0.000 title claims abstract description 35
- 239000000725 suspension Substances 0.000 title claims abstract description 33
- 238000013461 design Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 51
- 229910000831 Steel Inorganic materials 0.000 claims description 39
- 239000010959 steel Substances 0.000 claims description 39
- 238000007142 ring opening reaction Methods 0.000 claims description 17
- 239000002689 soil Substances 0.000 claims description 16
- 238000009412 basement excavation Methods 0.000 claims description 15
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/22—Sockets or holders for poles or posts
- E04H12/2292—Holders used for protection, repair or reinforcement of the post or pole
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/48—Foundations inserted underneath existing buildings or constructions
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D35/00—Straightening, lifting, or lowering of foundation structures or of constructions erected on foundations
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/22—Sockets or holders for poles or posts
- E04H12/2284—Means for adjusting the orientation of the post or pole
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The invention relates to the technical field of wire rod suspension protection, in particular to a wire rod suspension protection device above an open cut underground space and a construction method. The invention has the beneficial effects that the wire rod at the upper part of the underground space does not need to be changed, the engineering cost is reduced, the construction period is saved, the wire rod suspension protection scheme provided by the invention has no influence on the construction of the main structure of the underground space at the lower part, and meanwhile, the scheme design and the later-period use of the underground space have small functional and practical influence.
Description
Technical Field
The invention relates to the technical field of wire rod suspension protection, in particular to a wire rod suspension protection device above an open cut underground space and a construction method.
Background
In municipal engineering, when some underground space engineering is built, the condition that the wire rods exist on the ground is often met, at present, the conventional method is to remove and change the wire rods before excavation of foundation pits, so that the construction period is prolonged, larger removing and changing cost can be generated, and particularly, the removing and changing difficulty and the removing and changing cost can be greatly improved for the wire rods in partial old urban areas. In addition, for some wire poles with larger moving and changing difficulties, an avoidance scheme is adopted in the earlier design stage of the underground space, which definitely has larger influence on the scheme design of the underground space and the later use of the functionality and the practicability, and meanwhile, some wire pole in-situ protection schemes exist at present, but when the wire poles are positioned in the foundation pit, the support formed by the protection schemes tends to have larger influence on the construction of the main structure of the underground space, and the limitation is larger.
The Chinese patent No. CN115012426A provides a steel pipe pile support and construction method for full excavation of the periphery of an existing telegraph pole, which comprises the steps that miniature steel pipe pile steel pipes and anchor rope tensioning anchor blocks are respectively inserted into soil layers, large steel pipe sleeves are adopted for welding when the miniature steel pipe pile steel pipes are lengthened, cement mortar is combined with the miniature steel pipe pile steel pipes, annular channel steel crown beams which are spliced in pairs from inside to outside are installed at the tops of the miniature steel pipe pile steel pipes, concrete hardening layers are poured on the periphery of the miniature steel pipe piles on the ground, three steel pipe connecting rods which are intersected and triangular are welded on the channel steel crown beams, the periphery of the annular miniature steel pipe piles are filled with an isolation iron sheet, annular binding type prestress anchor ropes are installed outside the isolation iron sheet, the anchor rope tensioning anchor blocks are buried in the periphery soil layers of the annular binding type prestress anchor ropes, and the anchor rope tensioning anchor blocks are formed by the channel steel, the first reinforcing steel plates, the second reinforcing steel plates, the third reinforcing steel plates, the concrete piers, the steel pads and special anchors.
Although the device provided by the invention can solve the problems that under the condition of full excavation of soil around the existing high-voltage telegraph pole, the soil around the telegraph pole is temporarily reinforced and supported, so that the existing telegraph pole is ensured to be used for maintaining the current normal power supply, and the full excavation work of the earthwork around the telegraph pole is not delayed, the method is in-situ protection, a large amount of earthwork still exists in the protection range, the influence on the construction of the subsequent main structure is larger, the underground space of the part cannot be utilized, and the function of the underground space is also greatly influenced, so that the development of the device for protecting the suspended telegraph pole above the open excavation underground space and the construction method are needed.
Disclosure of Invention
The invention aims to provide a wire pole suspension protection device above an open cut underground space and a construction method, so as to solve the problems in the background technology.
The technical scheme of the invention is as follows: the pile foundation comprises a wire rod, a pile foundation, a hardening layer, a main structure, a breaking section, a water stop steel plate and plain concrete, wherein a stand column is arranged at the top of the pile foundation, a main longitudinal beam is arranged at the top of the stand column, a cross beam is arranged at the top of the main longitudinal beam, secondary longitudinal beams are arranged between the cross beams, a ring opening beam member is arranged outside the wire rod, a rubber pad is arranged between the wire rod and the ring opening beam member, an inclined strut member is arranged outside the wire rod and above the ring opening beam member, a lifting hook member is arranged outside the wire rod and below the ring opening beam member, a suspension hole is formed below the lifting hook member, plain concrete is poured into the hardening layer, the plain concrete is wrapped outside the wire rod, the main structure is embedded into the ground, the wire rod is positioned at the top of the breaking section, the breaking section is positioned inside the main structure, and the water stop steel plate is embedded into the main structure.
Further, the ring mouth beam member comprises an upper sealing plate and a lower sealing plate, an inner sealing plate and an outer sealing plate are welded between the upper sealing plate and the lower sealing plate, and end sealing plates are arranged at two ends of the upper sealing plate, the lower sealing plate and the outer sealing plate.
Further, one side of the lower sealing plate is fixed with a base plate, and the top of the base plate is welded with an end rib plate.
Further, one side of the outer sealing plate is welded with a middle rib plate, and the tops of the upper sealing plate and the lower sealing plate are provided with bolt holes.
Further, the lifting hook component comprises a lifting rod, a lifting ring is fixed at the bottom of the lifting rod, a screw rod penetrates through the lifting ring, and a nut is threaded at one end of the screw rod.
Further, a hook is fixed at the bottom of the screw rod, and one end of the hook is clamped in the hanging hole.
Further, the diagonal bracing member comprises a hoop, a supporting rod is rotated on one side of the hoop, a supporting plate is arranged at one end of the supporting rod, and hinge joints are arranged at two ends of the supporting rod.
A construction method for protecting a wire pole above an open cut underground space in a suspended manner comprises the following steps:
s1: leveling a field, and applying a hardening layer on the ground;
s2: reasonably selecting a pile foundation construction position according to the condition of the wire mesh at the upper part of the wire rod and the site condition;
s3: finishing synchronous construction of the pile foundation and the upright post, and backfilling the drilled holes;
s4: installing a main longitudinal beam, a cross beam and a secondary longitudinal beam on the hardening layer, and leveling the whole structure;
s5: installing the ring opening beam member and the rubber pad, and tightly holding the wire rod;
s6: installing diagonal bracing members and rubber pads, and tightly holding the wire rod;
s7: stopping excavation, starting to form a suspension hole and installing a lifting hook component when the foundation pit is excavated and about 0.5-1m leaks out of the structure of the partial line rod in the soil;
s8: continuing to excavate until the foundation pit bottom;
s9: according to a design drawing, a water-stopping steel plate is arranged in the middle of the joint of the upright post and the top and bottom plates of the main body structure, and the water-stopping steel plate is welded with the upright post;
s10: chiseling a broken section of the lower part of the wire rod, which invades the main structure, and bending the steel bar of the broken section into the steel bar of the main structure;
s11: pouring the concrete of the main body structure, removing the lifting hook component after the strength reaches the standard, applying the lifting hook component to the waterproof layer at the upper part of the main body structure, and backfilling the covering soil at the upper part of the main body structure, wherein the part of the wire rod inserted into the soil is preferably wrapped and backfilled by plain concrete;
s12: and removing the suspended protection device, cutting off the upright posts positioned in the main body structure, cutting redundant upright posts on the top plate, applying a waterproof reinforcing layer, and backfilling small pits dug out by the redundant upright posts on the upper part of the cut top plate.
The invention provides a wire rod suspending protection device above an open cut underground space and a construction method by improving the device, and compared with the prior art, the device has the following improvement and advantages:
(1) The invention does not need to carry out the transition and modification on the upper line pole of the underground space, reduces the engineering cost and saves the construction period.
(2) The suspending device provided by the invention has the advantages of simple component types, convenience in transportation, flexible installation on site and simultaneous construction with foundation pit support construction.
(3) The adopted suspension device has definite force transmission path, simple structure, strong adaptability and large adjustable space, is convenient for design by designers, and is easy to popularize.
(4) The wire pole suspension protection scheme provided by the invention has no influence on the construction of the main structure of the underground space at the lower part basically, and has little influence on the scheme design and the later-period use functionality and practicality of the underground space.
Drawings
The invention is further explained below with reference to the drawings and examples:
FIG. 1 is a sectional view of a foundation pit excavation preparation of the present invention;
FIG. 2 is a schematic view of the connecting node at the ring beam according to the present invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is a second cross-sectional view of the present invention;
FIG. 5 is a three-dimensional view of the diagonal bracing member of the present invention;
FIG. 6 is a schematic view of a collar beam element of the present invention;
FIG. 7 is a schematic view of a hook member of the present invention;
FIG. 8 is a sectional view of a foundation pit excavation preparation in accordance with the present invention;
FIG. 9 is a cross-sectional view of a construction of a body structure of the present invention;
FIG. 10 is a cross-sectional view of the present invention after backfilling of a pit;
fig. 11 is a flow chart of the method of the present invention.
Reference numerals illustrate:
1. a wire rod; 2. pile foundation; 3. a column; 4. a main longitudinal beam; 5. a cross beam; 6. secondary stringers; 7. a hanging hole; 8. a backing plate; 9. a rubber pad; 20. a collar beam member; 21. an upper sealing plate; 22. a lower sealing plate; 23. an inner sealing plate; 24. an outer sealing plate; 25. an end sealing plate; 26. an end rib plate; 27. middle rib plates; 28. bolt holes; 30. a hook member; 31. a boom; 32. a hanging ring; 33. a hook; 34. a nut; 35. a screw; 40. a diagonal bracing member; 41. a hoop; 42. a brace rod; 43. a supporting plate; 44. a hinge joint; 51. a hardening layer; 52. a main body structure; 53. breaking the segment; 54. a water-stopping steel plate; 55. and (5) plain concrete.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 11, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
According to the invention, through improvement, a wire rod suspension protection device above an open-cut underground space is provided, as shown in fig. 1-11, the device mainly comprises a wire rod 1, a pile foundation 2, a column 3, a main longitudinal beam 4, a cross beam 5, a secondary longitudinal beam 6, a ring opening beam member 20, a lifting hook member 30, a diagonal bracing member 40, a hardening layer 51 and the like, wherein the column 3 is inserted into the pile foundation 2, the top of the column 3 and the main longitudinal beam 4, the cross longitudinal beam, the two hoops 41 and the two ring opening beam members 20 are all connected through bolts, the self weights of the wire rod 1 and the upper wire rod are mainly transferred to the ring opening beam member through the lifting hook suspension, and then transferred to the column 3 and the pile foundation 2 through the cross longitudinal beam, plain concrete 55 is poured into the hardening layer 51, the plain concrete 55 is wrapped outside the wire rod 1, the main structure is embedded in the ground, the wire rod 1 is positioned at the top of a broken section, the broken section is positioned in the main structure, and the water-stopping steel plate is embedded in the main structure.
The upright post 3 is an I-shaped steel member, the lower part of the upright post is inserted into the pile foundation 2 for a certain depth, the upright post 3 is inserted before the pile foundation 2 is not hardened, and the upright post can be used as an upper structure after the strength of the pile foundation 2 reaches the standard, wherein the pile foundation 2 is of a concrete structure, the concrete construction position and the construction mode are determined according to the actual condition of the site, when the upper wire net of the wire rod is dense and complex, the construction can be performed in a manhole hole digging mode, and when the drilling machine can avoid the upper wire net, the construction can be performed in a drilling pouring mode; the upright posts 3 and the pile foundations 2 are arranged along the periphery of the line rod 1 in a quadrilateral manner, the upper parts of the two upright posts 3 positioned on one side of the long side are connected through main longitudinal beams 4, and two main longitudinal beams 4 are arranged in total; the main longitudinal beam 4 is a double-spliced H-shaped steel member, two ends of the main longitudinal beam are connected with the lower I-shaped steel upright post 3 by bolts, and two parallel cross beams 5 are arranged on the upper side of the middle part of the main longitudinal beam 4 and are connected with the main longitudinal beam by bolts; the arrangement of the upright posts around the wire pole 1 is not necessarily parallelogram, the left side and the right side of the main longitudinal beam 4 are not necessarily parallel, the arrangement can be flexibly carried out according to the field wire net and construction conditions, a certain safety distance between the main longitudinal beam and the wire net is ensured, and the field construction requirements can be met; in addition, when the upper wire pole 1 has a larger load and the stability of the suspending device needs to be further improved, the upright post 3 can be a steel pipe concrete member.
The diagonal bracing member 40 mainly comprises a half hoop 41, two supporting rods 42, two supporting plates 43 and four hinge joints 44, wherein the upper end and the lower end of each supporting rod 42 are respectively connected with the half hoop 41 and the supporting plates 43 through the hinge joints 44, the supporting plates 43 are arranged on the upper part of the main longitudinal beam 4 and are connected with upper wing plates of the main longitudinal beam 4 through bolts, and reinforced rib plates are arranged in the lower main longitudinal beam 4 of the supporting plates 43; the left half piece and the right half piece of the half piece hoop 41 are connected with the wire holding rod 1 at a certain distance above the ring opening beam member by bolts, two supporting plates of the left inclined supporting member are connected with the upper wing plate of the left main longitudinal beam 4, two supporting plates of the right inclined supporting member are connected with the upper wing plate of the right main longitudinal beam 4, four supporting rods stand on the periphery of the wire holding rod 1, the wire holding rod 1 plays a role in lateral supporting, and meanwhile, due to the arrangement of the hinge joint 44, the inclination angle of the supporting rod 42 can be flexibly adjusted according to the field condition; the rubber pad 9 is arranged at the contact position between the inner side of the half-piece hoop 41 and the wire pole 1, so that the steel member can be prevented from damaging the existing wire pole during fastening, and meanwhile, the force transmission between the half-piece hoop 41 and the wire pole 1 is more uniform, and the fastening effect is improved; when the half hoop 41 cannot tightly hold the pole 1, the hoop should be customized according to the outer diameter of the pole, or some wedge-shaped gaskets may be prepared to be embedded between the hoop and the pole, so as to ensure the fastening effect.
As shown in fig. 2, two cross beams 5 are arranged in parallel on both sides of the wire rod 1 along the transverse direction, two secondary longitudinal beams 6 are arranged in parallel on both sides of the wire rod 1 along the longitudinal direction, and the inner edges between the cross beams 5 and the secondary longitudinal beams 6 are close to the outer sealing plates 24 of the ring-opening beam members 20; the ring mouth beam members 20 are positioned on the upper parts of the cross beam 5 and the secondary longitudinal beam 6 and are connected with the upper wing plates of the cross beam 5 and the secondary longitudinal beam 6 by bolts, the two ring mouth beam members 20 are tightly bolted through the end sealing plates 25 and are tightly held by the wire rod 1, and the rubber pads 9 are arranged at the contact positions of the inner sides of the ring mouth beam members 20 and the wire rod 1, so that the steel members can be prevented from damaging the existing wire rod during fastening, the force transmission between the inner sides of the ring mouth beam members 20 and the wire rod 1 is more uniform, and the fastening effect is improved.
The ring beam member 20 mainly comprises an upper sealing plate 21, a lower sealing plate 22, an inner sealing plate 23, an outer sealing plate 24, an end sealing plate 25, rib plates and backing plates, wherein the plate members are welded; the upper and lower sealing plates 21 and 22 are arranged in parallel up and down, and are provided with bolt holes 28 thereon for fixing the upper portions of the hook members 30; the inner sealing plate 23 and the outer sealing plate 24 are vertically arranged in parallel and are consistent with the outline of the outer wall of the wire rod 1, the inner sealing plate 23 is tightly attached to the outer wall of the wire rod 1, and a rubber pad 9 is arranged between the inner sealing plate 23 and the outer wall of the wire rod 1; an annular opening beam is formed among the upper sealing plate 21, the lower sealing plate 22, the inner sealing plate 23 and the outer sealing plate 24, an end sealing plate 25 is arranged at the end part of the annular opening beam, bolt holes 28 are formed in the end part of the annular opening beam and can be used for connecting with other annular opening beam components, the backing plate 8 is arranged in parallel with the cross beam 5 and the upper wing plate of the secondary longitudinal beam 6, and the bolt holes 28 are formed in the backing plate and can be bolted with the cross beam; the middle rib plates 27 are arranged at the upper parts of the left side secondary longitudinal beams 6, the end rib plates are arranged at 2 and are respectively arranged above the two cross beams 5 and are arranged in parallel with the end sealing plates; the rib plates and the ring opening beam are welded, so that the load on the upper part of the ring opening beam can be better transferred to the cross beam 5 and the secondary longitudinal beam 6. The ring mouth beam member 20 is tightly attached to the lower part of the wire rod 1, forms a triangular support system under the joint fastening action of the ring mouth beam member and the upper inclined strut member 40, can well limit the translation and rotation of the wire rod 1, and limits the vertical displacement of the wire rod 1 through the lifting hook member 30, so that the whole stability of the wire rod 1 is ensured, and the wire rod 1 can maintain the original state even if the periphery of a foundation pit is completely hollowed. The ring mouth beam member is lapped on the cross beam 5 and the secondary longitudinal beam 6 in a rib plate mode, so that a larger space is provided for structural adjustment, when the size of the wire rod 1 is larger, the ring mouth beam member 20 is suitable for the size adjustment of the wire rod, and at the moment, only the distance between the cross beams 5 is required to be properly adjusted, and the secondary longitudinal beam 6 is required to be lengthened; and even in the face of a plurality of wire rods 1 provided with independent circular foundations and square foundations, the suspension protection of the wire rods with the independent foundations can be met through the adaptive adjustment of the circular ring opening beam and the square ring opening beam.
The lifting hook component 30 mainly comprises a lifting rod 31, a lifting ring 32, a hook 33, a screw 35 and a nut 34, wherein the end part of the hook 33 is provided with a section of bent part, so that the wire rod 1 can be better supported, and the wire rod 1 is prevented from being separated from the hook 33; the upper part of the hook is provided with a screw rod 35, two sides of the screw rod are overlapped with the two hanging rings 32, the outermost side of the screw rod is provided with a nut 34 for preventing the hanging rings from being hollow with the screw rod 35, the upper part of the hanging rings is provided with a hanging rod 31 which penetrates through the inside of the ring mouth beam member 20 and is fixed on the upper part of the ring mouth beam through bolts, and the hook 33 penetrates into the hanging hole 7 to hang the wire rod 1, so that the load of the wire rod is transmitted to the ring mouth beam member 20; the upper part of the boom ring opening beam is fixed by a nut, so that the height of the lifting hook can be quickly adjusted in a mode of screwing a bolt; the suspension holes 7 are drilled in the wire rod 1, 4 holes are arranged in the circumferential direction, the drill holes are not too large, the wire rod 1 can be lifted, the load of the wire rod can be partially transferred to the soil at the lower part, the situation that the wire rod is broken and sunk due to the fact that the lifting hook is not installed is prevented, meanwhile, the suspension holes can be staggered up and down for a certain distance, and the wire rod is prevented from being broken due to the fact that the same cross section of the wire rod is lost greatly. The suspension height of the suspension rod 31 can be very conveniently adjusted by screwing the bolt, can be flexibly suitable for the wire rods with different burial depths, and can be adjusted by only needing to cancel bending of the end part of the hook 33 and then inserting the hook into the suspension hole 7 when aiming at some solid wire rods and wire rods with foundation; and when the wire pole size is great, the ring mouth beam member 20 adapts to wire pole size adjustment, only need add its bolt hole 28 this moment, can be convenient increase lifting hook member, satisfy the unsettled protection demand of major diameter wire pole, be equipped with independent circular basis wire pole and be equipped with square basis wire pole.
Overhead line pole suspension protection construction method for open cut underground space
As shown in fig. 8 and 9, the construction method for protecting the wire pole above the open cut underground space in a suspending way comprises the following steps:
s1: the ground is leveled and a hardened layer 51 is applied to the ground.
S2: and the construction position of the pile foundation 2 is reasonably selected according to the condition of the wire mesh at the upper part of the wire pole 1 and the site condition.
S3: and finishing synchronous construction of the pile foundation 2 and the upright post 3, and backfilling the drilled holes.
S4: the main stringers 4, cross members 5, and sub stringers 6 are installed on the hardened layer 51, and the entire structure is leveled.
S5: the 2 ring beam members 20 and the rubber pad 9 are installed and held tightly against the wire rod 1.
S6: 2 diagonal members 40 and rubber pads 9 are installed and held tightly against the wire rod 1.
S7: when the foundation pit excavates about 0.5-1m out of the structure of the soil-partial line pole 1, the excavation is stopped, the construction of the suspension hole 7 is started, and the hook member 30 is installed.
S8: and (5) continuing to excavate until the foundation pit bottom.
S9: according to the design drawing, a water stop steel plate 54 is arranged in the middle of the joint of the upright post 3 and the top and bottom plates of the main body structure, and the water stop steel plate 54 is welded with the upright post 3.
S10: chiseling the broken section 53 of the lower part of the wire rod 1, which invades the main structure, and bending the steel bar into the steel bar of the main structure;
s11: and pouring the concrete of the main structure, removing the lifting hook member 30 after the strength reaches the standard, applying the concrete to the waterproof layer at the upper part of the main structure, and backfilling the soil covering at the upper part of the main structure, wherein the part of the line rod 1 inserted into the soil is preferably wrapped by plain concrete 55 for backfilling.
S12: and (3) dismantling the suspension protection device, cutting off the upright posts 3 positioned in the main body structure, cutting the redundant upright posts 3 on the top plate, applying a waterproof reinforcing layer, and backfilling the small pits dug out by the redundant upright posts 3 on the upper part of the cut top plate.
When the lower part of the wire rod 1 does not invade the main structure 52, the broken section 53 is not required to be arranged, but plain concrete 55 is adopted to backfill the gap between the lower part of the wire rod 1 and the top of the main structure; in addition, in step S11, when the upper part of the main body structure is covered with soil and backfilled, the upright posts 3 should be leaked as much as possible, and then the redundant upright posts 3 on the top plate should be cut conveniently.
In addition, the suspension hole 7 should be applied before the wire rod 1 is inserted into the soil body and is completely exposed, at this time, the soil body at the bottom of the wire rod 1 still has a vertical supporting function on the wire rod, and meanwhile, under the fastening action of the ring opening beam member 20 and the diagonal bracing member 40, a certain vertical supporting function can be also performed on the wire rod 1, so that the wire rod 1 is stable and does not subside before the suspension protection effect is achieved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a unsettled protection device of wire pole above open cut underground space which characterized in that: the pile foundation comprises a wire rod (1), a pile foundation (2), a hardened layer (51), a main structure (52), a breaking section (53), a water stop steel plate (54) and plain concrete (55), wherein a stand column (3) is arranged at the top of the pile foundation (2), a main longitudinal beam (4) is arranged at the top of the stand column (3), a cross beam (5) is arranged at the top of the main longitudinal beam (4), secondary longitudinal beams (6) are arranged between the cross beams (5), a ring beam member (20) is arranged at the outer part of the wire rod (1), a rubber pad (9) is arranged between the wire rod (1) and the ring beam member (20), a diagonal bracing member (40) is arranged at the outer part of the wire rod (1) and above the ring beam member (20), a hanging hook member (30) is arranged at the outer part of the wire rod (1) and below the hanging hook member (30), a hanging hole (7) is formed in the lower part of the hanging hook member (30), a plain concrete (55) is poured into the hardened layer (1) and the outer part of the wire rod (1) is embedded in the ground (52), the breaking section (53) is located inside the main body structure (52), and the water-stopping steel plate (54) is embedded inside the main body structure (52).
2. The overhead line pole suspension protection device for an open excavation underground space according to claim 1, wherein: the ring mouth beam member (20) comprises an upper sealing plate (21) and a lower sealing plate (22), an inner sealing plate (23) and an outer sealing plate (24) are welded between the upper sealing plate (21) and the lower sealing plate (22), and end sealing plates (25) are respectively arranged at two ends of the upper sealing plate (21), the lower sealing plate (22) and the outer sealing plate (24).
3. The overhead line pole suspension protection device for an open excavation underground space according to claim 2, wherein: one side of the lower sealing plate (22) is fixed with a base plate (8), and the top of the base plate (8) is welded with an end rib plate (26).
4. The overhead line pole suspension protection device for an open excavation underground space according to claim 2, wherein: one side of the outer sealing plate (24) is welded with a middle rib plate (27), and the tops of the upper sealing plate (21) and the lower sealing plate (22) are provided with bolt holes (28).
5. The overhead line pole suspension protection device for an open excavation underground space according to claim 1, wherein: the lifting hook component (30) comprises a lifting rod (31), a lifting ring (32) is fixed at the bottom of the lifting rod (31), a screw rod (35) penetrates through the lifting ring (32), and a nut (34) is threaded at one end of the screw rod (35).
6. The overhead line pole suspension protection device for the open cut underground space according to claim 5, wherein: the bottom of the screw rod (35) is fixedly provided with a hook (33), and one end of the hook (33) is clamped in the hanging hole (7).
7. The overhead line pole suspension protection device for an open excavation underground space according to claim 1, wherein: the diagonal bracing member (40) comprises a hoop (41), a supporting rod (42) is rotated on one side of the hoop (41), a supporting plate (43) is arranged at one end of the supporting rod (42), and hinge joints (44) are arranged at two ends of the supporting rod (42).
8. A hanging protection construction method for a wire pole above an open cut underground space is characterized by comprising the following steps: the method comprises the following steps:
s1: leveling the ground, and applying a hardening layer (51) on the ground;
s2: reasonably selecting the construction position of the pile foundation 2 according to the condition of the wire net on the upper part of the wire pole (1) and the site condition;
s3: finishing synchronous construction of the pile foundation (2) and the upright post (3), and backfilling the drilled holes;
s4: a main longitudinal beam (4), a cross beam (5) and a secondary longitudinal beam (6) are arranged on the hardening layer (51), and the whole structure is leveled;
s5: installing a ring opening beam member (20) and a rubber pad (9) and tightly holding the wire rod (1);
s6: installing a diagonal bracing member (40) and a rubber pad (9) and tightly holding the wire rod (1);
s7: stopping excavation, starting to apply a suspension hole (7) and installing a lifting hook component (30) when the foundation pit is excavated and about 0.5-1m leaks out of the structure of the soil partial line rod (1);
s8: continuing to excavate until the foundation pit bottom;
s9: according to a design drawing, a water-stopping steel plate (54) is arranged in the middle of the joint of the upright post (3) and the top and bottom plates of the main body structure (52), and the water-stopping steel plate (54) is welded with the upright post (3);
s10: chiseling a broken section (53) of the lower part of the wire rod (1) which invades the main body structure (52), and bending the reinforcing steel bars into the reinforcing steel bars of the main body structure (52);
s11: pouring the concrete of the main body structure (52), dismantling the lifting hook member (30) after the strength reaches the standard, applying the lifting hook member to the waterproof layer at the upper part of the main body structure (52), and backfilling the soil covering at the upper part of the main body structure (52), wherein the part of the line rod (1) inserted into the soil is preferably wrapped by plain concrete (55) for backfilling;
s12: dismantling the suspension protection device, cutting off the upright post (3) positioned in the main body structure, cutting the redundant upright post (3) on the top plate, applying a waterproof reinforcing layer, and backfilling the small pit dug by the redundant upright post (3) on the upper part of the cut top plate.
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| CN202310650879.3A CN116378493B (en) | 2023-06-05 | 2023-06-05 | Overhead line pole suspension protection device above open cut underground space and construction method |
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| CN115680361A (en) * | 2022-11-11 | 2023-02-03 | 国网安徽省电力有限公司宣城供电公司 | Auxiliary support righting device for erecting electric power wire tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5162807A (en) * | 1989-12-22 | 1992-11-10 | Thomson-Csf | Architectural structure combining at least one antenna with supporting mast positioned on the ground and at least one high-power transmitter |
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