CN113685050A - Deviation rectifying method for inclined extra-high voltage transmission iron tower in coal mine subsidence area - Google Patents
Deviation rectifying method for inclined extra-high voltage transmission iron tower in coal mine subsidence area Download PDFInfo
- Publication number
- CN113685050A CN113685050A CN202111111674.5A CN202111111674A CN113685050A CN 113685050 A CN113685050 A CN 113685050A CN 202111111674 A CN202111111674 A CN 202111111674A CN 113685050 A CN113685050 A CN 113685050A
- Authority
- CN
- China
- Prior art keywords
- tower
- power transmission
- foot
- wire
- skew
- 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.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
-
- 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
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/06—Separating, lifting, removing of buildings; Making a new sub-structure
- E04G23/065—Lifting of buildings
-
- 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
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
-
- 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
- E04H12/20—Side-supporting means therefor, e.g. using guy ropes or struts
-
- 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
- E04H12/2207—Sockets or holders for poles or posts not used
- E04H12/2215—Sockets or holders for poles or posts not used driven into the ground
- E04H12/2223—Sockets or holders for poles or posts not used driven into the ground by screwing
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention provides a deviation rectifying method for a skew extra-high voltage power transmission iron tower in a coal mine subsidence area, wherein a wheel-passing anchor-facing anchor ground anchor is respectively embedded in the power transmission iron towers at the upstream side and the downstream side; burying a temporary stay anchor in the inclined power transmission iron tower; firstly, power failure occurs, and then the spacing rods on the conducting wires between the adjacent transmission towers at the two sides of the skew transmission tower are dismantled; respectively hanging a ground wire paying-off pulley on the transmission towers at the upstream and downstream sides, moving a wire from a wire clamp into the pulley, and arranging a passing wheel adjacent anchor and a rubberizing anchor rope; arranging double steel wire rope stay wires at the outer corner side of the skew power transmission iron tower; respectively connecting a steel wire rope sleeve in front of a wire clamp on the upstream side and the downstream side of the skew power transmission iron tower, and reducing the internal tension of a single wire to a set value; the wire is tightened by a winch through a cable and a wire clamping device, the wire clamp is removed, then a wire rope sleeve with a corresponding length is connected in series, and the winch is slowly loosened to loosen the wire to a specified length; and sequentially carrying out lifting operation on the tower foot four, the tower foot one and the tower foot three. The method can realize the deviation correction of the power transmission iron tower with heavy weight and uneven settlement.
Description
Technical Field
The invention belongs to the technical field of deviation correction of transmission towers, and particularly relates to a deviation correction method for a skew extra-high voltage transmission tower in a coal mine subsidence area.
Background
At the present stage, with the wide exploitation of coal resources and the increase of exploitation depth, a large number of coal mining subsidence areas are formed in various places. Meanwhile, with the continuous development of power grid construction, the line corridor is increasingly tense. A large number of power transmission lines are inevitably constructed in a coal mining subsidence area, so that some power transmission towers are inevitably sunk and inclined in different degrees in a long-term movement process, and serious threats are caused to the safe operation of the power transmission lines after the power transmission towers are sunk and inclined.
At present, for a power transmission iron tower with small uneven settlement, small load and low voltage grade, a method of lengthening foundation bolts or adopting a hydraulic device can be adopted for deviation rectification treatment. The following problems mainly exist in the prior art: on one hand, the thickness of coal seam mining is larger and larger, so that the sinking depth of an iron tower is larger and larger, and meanwhile, the uneven settling amount is larger and larger; on the other hand, the grade of the power transmission line is higher and higher, the load is larger and larger, and the deep sinking depth and the uneven settling amount are further aggravated. Therefore, for the power transmission iron tower with larger settling volume and larger load, such as a double-loop extra-high voltage power transmission iron tower, the correction by adopting the conventional method is difficult. Therefore, a deviation rectifying method which is simple to operate, fast in speed, short in construction period and good in effect is urgently needed to be researched.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a deviation rectifying method for a tilted extra-high voltage transmission tower in a coal mine subsidence area, which can realize the deviation rectifying operation of the transmission tower with large weight, uneven settlement and large settlement; meanwhile, the method has the advantages of simple construction, short construction period, quick response, lasting effect, high reliability and low cost.
In order to achieve the purpose, the invention provides a deviation rectifying method for a skewed extra-high voltage transmission iron tower in a coal mine subsidence area, which comprises a skewed transmission iron tower, an upstream side transmission iron tower and a downstream side transmission iron tower, wherein the upstream side transmission iron tower is positioned in front of the upstream side of the skewed transmission iron tower, the downstream side transmission iron tower is positioned in front of the downstream side of the skewed transmission iron tower, and the upstream side transmission iron tower, the skewed transmission iron tower and the downstream side transmission iron tower are arranged on a same-tower double-loop transmission line in a pairwise adjacent manner; the skew power transmission iron tower is provided with four tower legs, wherein a first tower leg and a fourth tower leg are arranged on the upstream side, a second tower leg and a third tower leg are arranged on the downstream side, and the first tower leg and the second tower leg are respectively positioned in front of the fourth tower leg and the third tower leg;
the method comprises the following steps:
the method comprises the following steps: respectively embedding a wheel-passing anchor ground anchor in an upstream power transmission iron tower and a downstream power transmission iron tower;
for over-wheel adjacent anchor ground anchors, two ground anchors are arranged on each phase of lead, and one ground anchor is arranged on each ground wire and OPGW;
step two: burying a temporary stay anchor in the inclined power transmission iron tower;
for the temporary stay wires, the temporary stay wires are respectively arranged at a cross partition surface between the upper lead cross arm and the ground wire bracket, at a cross partition surface at the middle lead cross arm and at a cross partition surface at the lower lead cross arm;
step three: firstly, power failure occurs, and then the spacing rods on the conducting wires between the adjacent transmission towers at the two sides of the skew transmission tower are dismantled;
step four: respectively hanging a ground wire paying-off pulley on an upstream side power transmission iron tower and a downstream side power transmission iron tower, moving a wire into the pulley from a wire clamp, and arranging a pulley adjacent anchor and a rubberizing anchor rope; the upper end of the adhesive hanging anchor rope penetrates through the right-angle hanging plate and then is connected with the wire clamping device, and the lower end of the adhesive hanging anchor rope is connected with the hand-operated hoist on the adjacent anchor frame after being connected with the steel wire rope in series; after the hand hoist is tightened, the tail wire is sleeved at the single end of the adhesive-coated anchor rope and is clamped by a plurality of cable clamps;
step five: arranging double steel wire rope stay wires at the outer corner side of the skew power transmission iron tower;
step six: the method comprises the following steps that steel wire rope sleeves with certain lengths are respectively connected in front of wire clamps on the upstream side and the downstream side of the skew power transmission iron tower, and the internal tension of a single wire is reduced to a set value;
step seven: the wire is tightened by a winch through a cable and a wire clamping device, the wire clamp is removed, then a wire rope sleeve with a corresponding length is connected in series, and the winch is slowly loosened to loosen the wire to a specified length;
step eight: lifting the tower foot four; loosening foundation bolts at four positions of a tower foot, keeping the loose state of the wires at the upstream side and the downstream side of the skew power transmission iron tower, hanging three-phase wires at the inner angle of the downstream side of the skew power transmission iron tower, enabling the inner angle of the skew power transmission iron tower at the downstream side to be subjected to the internal tension of the wires, jacking the height of the tower foot four by using a hydraulic jacking device, synchronously loosening the foundation bolts at the tower foot one and the tower foot three, enabling the tower foot one and the tower foot three to be lifted together by legs of the tower foot four, and respectively adding a heightening gasket at the bottoms of the tower foot one and the tower foot three for heightening and supporting; after the tower foot four is jacked to the preset height, heightening the preset height of the tower foot four to improve the supporting height of the tower foot four;
step nine: lifting the tower foot I; keeping the wires at the upstream side and the downstream side of the skew power transmission iron tower in a fully relaxed state, enabling the three-phase wires at the inner corner side of the downstream side to be in a tightened state, then hooking the outer corner side wires at the downstream side of the skew power transmission iron tower, enabling the skew power transmission iron tower to be subjected to the internal tension of the wires at the downstream side, jacking the height of the tower foot I by using a hydraulic jacking device, lifting the height of the tower foot IV along with the tower feet one by one in the process, and then adding a heightening gasket at the bottoms of the tower foot I and the tower foot IV for heightening and supporting;
step ten: lifting the tower foot III; keeping the tightening state of the wires at the inner angle side of the upstream side and the inner angle side of the downstream side of the skew power transmission iron tower, keeping the loosening state of the wires at the outer angle side of the upstream side, enabling the skew power transmission iron tower to be subjected to the internal tension of the wires at the inner angle side, jacking the height of the tower foot III by using a hydraulic jacking device, lifting the height of the tower foot IV along with the tower foot III in the process, and then adding a heightening gasket at the bottoms of the tower foot III and the tower foot IV for heightening and supporting;
step eleven: measuring the settlement of the first tower leg, the second tower leg, the third tower leg and the fourth tower leg after lifting, selecting one tower leg with the minimum settlement as a reference height, respectively lifting the heights of the other three tower legs by utilizing a hydraulic lifting device until the four tower legs reach the same height, then keeping the four tower legs at the same height in a mode of adding heightening gaskets at the bottoms of the corresponding tower legs, and finally screwing down foundation bolts at the tower legs to fix the tower legs.
Further, in order to better and firmly fix the object to be fixed on the ground, the anchor rope of the ground anchor has an included angle to the ground of not more than 30 degrees in the first step.
Further, in order to maintain the force balance state of the skewed power transmission tower in each direction and ensure that the skewed power transmission tower cannot topple over in the deviation rectifying process, in the second step, the included angle between the temporary pull line and the ground is not more than 30 degrees.
Preferably, in step six, the set value is 0.5 t.
Furthermore, in order to achieve a better fixing effect, in the fourth step, the anchor facing direction of the over-wheel adjacent anchor is the same as the line direction, and the included angle of the over-wheel adjacent anchor to the ground is smaller than 30 degrees.
Preferably, in step four, the number of the cable clamps is four, and the distance between two adjacent cable clamps is 10 cm.
Compared with the existing deviation rectifying method, the method fully utilizes the internal tension of the lead, thereby effectively reducing the pressure of each tower foot in the deviation rectifying process, and reducing the jacking pressure requirement of the hydraulic jacking device, so that the power source with low power can be used for supplying power liquid, the equipment investment cost in the deviation rectifying process can be effectively reduced, and the deviation rectifying operation of the power transmission iron tower with heavy weight and large settling volume can be conveniently and quickly realized; in addition, through the auxiliary action of the pulling force in the wire, the probability that the iron tower topples over in the deviation rectifying operation process can be favorably reduced, and therefore the safety factor in the deviation rectifying operation process is favorably improved. The method has the advantages of simple process, easy implementation, short deviation rectifying period, quick response, low input cost, capability of ensuring the safe and stable operation of the power transmission iron tower and wide practicability.
Drawings
FIG. 1 is a schematic diagram of a deviation rectifying method for a skew extra-high voltage transmission tower in a coal mine subsidence area, provided by the invention;
FIG. 2 is a plan view of the deviation rectifying method for the inclined extra-high voltage transmission iron tower in the coal mine subsidence area provided by the invention;
FIG. 3 is a schematic view of an upstream power transmission tower or a downstream power transmission tower earth wire hanging and guiding paying-off tackle in the invention;
FIG. 4 is a schematic illustration of a method of lifting a tower leg four of the present invention;
FIG. 5 is a schematic diagram of a method of lifting a first tower leg of the present invention;
fig. 6 is a schematic diagram of a lifting method of a tower leg three in the invention.
In the figure: 1. the device comprises a skew power transmission iron tower, 2, an upstream power transmission iron tower, 3, a downstream power transmission iron tower, 4, a glue hanging anchor rope, 5, a stay wire ground anchor, 6, a lead, 7, a pulley, 8, a wire clamping device, 9, a winch, 10, a cable, 11, tower feet I, 12, tower feet II, 13, tower feet III, 14 and a tower foot IV.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 to 6, the invention provides a skew extra-high voltage transmission tower deviation rectifying method in a coal mine subsidence area, which comprises a skew transmission tower 1, an upstream side transmission tower 2 and a downstream side transmission tower 3, wherein the upstream side transmission tower 2 is positioned in front of the upstream side of the skew transmission tower 1, the downstream side transmission tower 3 is positioned in front of the downstream side of the skew transmission tower 1, and the upstream side transmission tower 2, the skew transmission tower 1 and the downstream side transmission tower 3 are arranged on a same-tower double-loop transmission line in a pairwise adjacent manner; the skew power transmission tower 1 is provided with four tower legs, wherein a first tower leg 11 and a fourth tower leg 14 are arranged on the upstream side, a second tower leg 12 and a third tower leg 13 are arranged on the downstream side, and the first tower leg 11 and the second tower leg 12 are respectively positioned in front of the fourth tower leg 14 and the third tower leg 13;
the method comprises the following steps:
the method comprises the following steps: the power transmission iron tower 2 at the upstream side and the power transmission iron tower 3 at the downstream side are respectively embedded with over-wheel anchor-facing ground anchors;
for over-wheel adjacent anchor ground anchors, each phase of conductor is provided with two ground anchors, and each ground wire and OPGW (optical fiber composite overhead ground wire) is provided with one ground anchor;
step two: burying a temporary stay wire ground anchor 5 in the inclined power transmission iron tower 1;
for the temporary stay wires, the temporary stay wires are respectively arranged at a cross partition surface between the upper lead cross arm and the ground wire bracket, at a cross partition surface at the middle lead cross arm and at a cross partition surface at the lower lead cross arm;
step three: firstly, power failure occurs, and then the spacing rods on the conducting wires 6 between the adjacent transmission towers at two sides of the skew transmission tower 1 are dismantled;
step four: respectively hanging a ground wire paying-off pulley on an upstream side power transmission iron tower 2 and a downstream side power transmission iron tower 3, moving a wire 6 into a pulley 7 from a wire clamp, and arranging a pulley adjacent anchor and a rubberizing anchor rope 4; the upper end of the rubberizing anchor rope 4 penetrates through the right-angle hanging plate and then is connected with the wire clamping device 8, and the lower end of the rubberizing anchor rope is connected with the steel wire rope in series and then is connected with the hand-drive block on the adjacent anchor frame; after the hand hoist is tightened, the tail wire is sleeved at the single end of the adhesive-coated anchor rope 4 and is clamped by a plurality of cable clamps;
step five: arranging double steel wire rope stay wires at the outer corner side of the skew power transmission iron tower 1;
step six: the method comprises the following steps that steel wire rope sleeves with certain lengths are respectively connected in front of wire clamps on the upstream side and the downstream side of the skew power transmission iron tower 1, and the internal tension of a single lead 6 is reduced to a set value;
step seven: the wire 6 is tightened by a winch 9 through a cable 10 and a wire clamping device 8, a wire clamp is removed and then a wire rope sleeve with a corresponding length is connected in series, and the winch 9 is slowly loosened to loosen the wire 6 to a specified length;
step eight: lifting the tower foot four 14, as shown in fig. 4; loosening foundation bolts at the position of a tower foot four 14, keeping the loose state of a lead 6 at the upstream side and the downstream side of the skew power transmission iron tower 1, hanging three-phase leads (namely two-line skew power transmission iron tower 1 downstream side three-phase leads) at the downstream side inner corner of the skew power transmission iron tower 1, enabling the skew power transmission iron tower 1 to be subjected to the internal tension of the lead at the downstream side inner corner, jacking the height of the tower foot four 14 by using a hydraulic jacking device, synchronously loosening the foundation bolts at the positions of a tower foot one 11 and a tower foot three 13, enabling the tower foot one 11 and the tower foot three 13 to be lifted together with the tower foot four 14, and respectively adding heightening gaskets at the bottoms of the tower foot one 11 and the tower foot three 13 for heightening and supporting; after the tower foot four 14 is jacked to the preset height, heightening the preset height of the tower foot four 14 to improve the supporting height of the tower foot four 14;
step nine: lifting the tower foot I11, as shown in fig. 5; keeping the wires 6 at the upstream side and the downstream side of the skew power transmission iron tower 1 in a fully relaxed state, enabling the three-phase wires at the inner corner side of the downstream side to be in a tightened state, then hooking the wires at the outer corner side of the downstream side of the skew power transmission iron tower 1 (namely a first-line three-phase wire at the downstream side of the skew power transmission iron tower 1), enabling the skew power transmission iron tower 1 to receive the internal tension of the wires 6 at the downstream side, jacking the height of the tower foot I11 by using a hydraulic jacking device, in the process, enabling the height of the tower foot II 14 to be lifted along with the tower foot I11, and then respectively adding a heightening gasket at the bottoms of the tower foot I11 and the tower foot II 14 for heightening and supporting;
step ten: lifting the tower leg III 13 as shown in fig. 6; keeping the tightening state of the wires 6 at the inner angle side of the upstream side and the inner angle side of the downstream side of the skew power transmission iron tower 1, keeping the loosening state of the wires 6 at the outer angle side of the upstream side, enabling the skew power transmission iron tower 1 to be subjected to the internal tension of the wires 6 at the inner angle side, jacking the height of the tower foot III 13 by using a hydraulic jacking device, lifting the height of the tower foot IV 14 along with the tower foot III 13 in the process, and then respectively adding a heightening gasket at the bottoms of the tower foot III 13 and the tower foot IV 14 for supporting and heightening;
step eleven: measuring the settlement after lifting the first tower leg 11, the second tower leg 12, the third tower leg 13 and the fourth tower leg 14, selecting one tower leg with the smallest settlement as a reference height, respectively lifting the heights of the other three tower legs by using a hydraulic lifting device until the four tower legs reach the same height, then keeping the four tower legs at the same height in a mode of adding heightening gaskets at the bottoms of the corresponding tower legs, and finally screwing down foundation bolts at the tower legs to fix the tower legs.
In order to better fix the object to be fixed on the ground stably, the anchor line of the ground anchor has an included angle to the ground of not more than 30 degrees in the first step.
In order to maintain the force balance state of the skew power transmission iron tower in all directions and ensure that the skew power transmission iron tower cannot topple in the deviation rectifying process, in the second step, the included angle between the temporary pull line and the ground is not more than 30 degrees.
Preferably, in step six, the set value is 0.5 t.
In order to achieve a better fixing effect, in the fourth step, the anchor facing direction of the over-wheel adjacent anchor is the same as the line direction, and the included angle of the over-wheel adjacent anchor to the ground is smaller than 30 degrees.
Preferably, in step four, the number of the cable clamps is four, and the distance between two adjacent cable clamps is 10 cm.
Compared with the existing deviation rectifying method, the method fully utilizes the internal tension of the lead, thereby effectively reducing the pressure of each tower foot in the deviation rectifying process, and reducing the jacking pressure requirement of the hydraulic jacking device, so that the power source with low power can be used for supplying power liquid, the equipment investment cost in the deviation rectifying process can be effectively reduced, and the deviation rectifying operation of the power transmission iron tower with heavy weight and large settling volume can be conveniently and quickly realized; in addition, through the auxiliary action of the pulling force in the wire, the probability that the iron tower topples over in the deviation rectifying operation process can be favorably reduced, and therefore the safety factor in the deviation rectifying operation process is favorably improved. The method has the advantages of simple process, easy implementation, short deviation rectifying period, quick response, low input cost, capability of ensuring the safe and stable operation of the power transmission iron tower and wide practicability.
Claims (6)
1. A skew extra-high voltage transmission tower deviation rectifying method in a coal mine subsidence area comprises a skew transmission tower (1), an upstream side transmission tower (2) and a downstream side transmission tower (3), wherein the upstream side transmission tower (2) is positioned in front of the upstream side of the skew transmission tower (1), the downstream side transmission tower (3) is positioned in front of the downstream side of the skew transmission tower (1), and the upstream side transmission tower (2), the skew transmission tower (1) and the downstream side transmission tower (3) are arranged on a same-tower double-circuit transmission line in a pairwise adjacent manner; the skew power transmission tower (1) is provided with four tower legs, wherein a first tower leg (11) and a fourth tower leg (14) are arranged on the upstream side, a second tower leg (12) and a third tower leg (13) are arranged on the downstream side, and the first tower leg (11) and the second tower leg (12) are respectively positioned in front of the fourth tower leg (14) and the third tower leg (13);
the method is characterized by comprising the following steps:
the method comprises the following steps: the power transmission iron tower (2) at the upstream side and the power transmission iron tower (3) at the downstream side are respectively embedded with a wheel adjacent anchor ground anchor;
for over-wheel adjacent anchor ground anchors, two ground anchors are arranged on each phase of lead, and one ground anchor is arranged on each ground wire and OPGW;
step two: burying a temporary stay wire ground anchor (5) in the inclined power transmission iron tower (1);
for the temporary stay wires, the temporary stay wires are respectively arranged at a cross partition surface between the upper lead cross arm and the ground wire bracket, at a cross partition surface at the middle lead cross arm and at a cross partition surface at the lower lead cross arm;
step three: firstly, power failure occurs, and then the spacing rods on the conducting wires (6) between the adjacent power transmission towers at the two sides of the skew power transmission tower (1) are dismantled;
step four: respectively hanging a ground wire paying-off pulley on an upstream side power transmission iron tower (2) and a downstream side power transmission iron tower (3), moving a wire (6) into the pulley (7) from a wire clamp, and arranging a pulley adjacent anchor and a rubberizing anchor rope (4); the upper end of the adhesive-coated anchor rope (4) penetrates through the right-angle hanging plate and then is connected with the wire clamping device (8), and the lower end of the adhesive-coated anchor rope is connected with the steel wire rope in series and then is connected with the hand-operated hoist on the adjacent anchor frame; after the hand hoist is tightened, the tail wire is sleeved at the single end of the adhesive-coated anchor rope (4) and is clamped by a plurality of cable clamps;
step five: a double-steel-wire-rope stay wire is arranged on the outer corner side of the skew power transmission iron tower (1);
step six: the front parts of wire clamps at the upstream side and the downstream side of the skew power transmission iron tower (1) are respectively connected with a steel wire rope sleeve with a certain length, and the internal tension of a single lead (6) is reduced to a set value;
step seven: the wire (6) is tightened by a winch (9) through a cable (10) and a wire clamping device (8), a wire clamp is removed and then a wire rope sleeve with a corresponding length is connected in series, and the winch (9) is slowly loosened to loosen the wire (6) to a specified length;
step eight: lifting the tower foot four (14); loosening foundation bolts at the position of a tower foot four (14), keeping the loosening state of a lead (6) at the upstream side and the downstream side of the skew power transmission iron tower (1), hanging three-phase leads at the inner angle of the downstream side of the skew power transmission iron tower (1), enabling the skew power transmission iron tower (1) to receive the internal tension of the lead at the inner angle of the downstream side, jacking the height of the tower foot four (14) by using a hydraulic jacking device, synchronously loosening the foundation bolts at the positions of a tower foot one (11) and a tower foot three (13), enabling the tower foot one (11) and the tower foot three (13) to lift together with the tower foot four (14), and adding heightening gaskets at the bottoms of the tower foot one (11) and the tower foot three (13) respectively for heightening support; after the tower foot four (14) is jacked to a preset height, heightening the preset height of the tower foot four (14) so as to improve the supporting height of the tower foot four (14);
step nine: lifting the tower foot I (11); keeping the wires (6) at the upstream side and the downstream side of the skew power transmission iron tower (1) in a fully relaxed state, enabling the three-phase wires at the inner corner side of the downstream side to be in a tightened state, then hooking the wires at the outer corner side of the downstream side of the skew power transmission iron tower (1), enabling the skew power transmission iron tower (1) to be subjected to internal tension of the wires (6) at the downstream side, jacking the height of a tower foot I (11) by using a hydraulic jacking device, in the process, enabling the height of a tower foot II (14) to be lifted along with the tower foot I (11), and then adding a heightening gasket at the bottoms of the tower foot I (11) and the tower foot II (14) respectively to heighten and support;
step ten: lifting the tower foot III (13); keeping the tightening state of the leads (6) at the inner corner side of the upstream side and the inner corner side of the downstream side of the skew power transmission iron tower (1), keeping the loosening state of the leads (6) at the outer corner side of the upstream side, enabling the skew power transmission iron tower (1) to be subjected to the internal tension of the leads (6) at the inner corner side, jacking the height of a tower foot III (13) by using a hydraulic jacking device, in the process, enabling the height of a tower foot IV (14) to be lifted along with the tower foot III (13), and then respectively adding a heightening gasket at the bottoms of the tower foot III (13) and the tower foot IV (14) for heightening and supporting;
step eleven: measuring the settlement after lifting the tower foot I (11), the tower foot II (12), the tower foot III (13) and the tower foot IV (14), selecting the tower foot with the minimum settlement as a reference height, respectively lifting the heights of the other three tower feet by using a hydraulic lifting device until the four tower feet reach the same height, then keeping the four tower feet at the same height in a mode of adding heightening gaskets at the bottoms of the corresponding tower feet, and finally screwing down foundation bolts at the tower feet to fix the tower feet.
2. The method for rectifying the deviation of the inclined extra-high voltage transmission tower in the coal mine subsidence area according to claim 1, wherein in the step one, an included angle between an anchor rope of the ground anchor and the ground is not more than 30 degrees.
3. The deviation rectifying method for the inclined extra-high voltage transmission tower in the coal mine subsidence area according to claim 1 or 2, wherein in the second step, the included angle between the temporary pull line and the ground is not more than 30 degrees.
4. The deviation rectifying method for the inclined extra-high voltage transmission tower in the coal mine subsidence area according to claim 3, wherein in the sixth step, the set value is 0.5 t.
5. The deviation rectifying method for the inclined extra-high voltage transmission tower in the coal mine subsidence area according to claim 4, wherein in the fourth step, the anchor approaching direction of the passing wheel adjacent anchor is the same as the line direction, and the included angle of the passing wheel adjacent anchor to the ground is less than 30 degrees.
6. The deviation rectifying method for the tilted extra-high voltage transmission tower in the coal mine subsidence area according to claim 5, wherein in the fourth step, the number of the cable clamps is four, and the distance between every two adjacent cable clamps is 10 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111111674.5A CN113685050A (en) | 2021-09-23 | 2021-09-23 | Deviation rectifying method for inclined extra-high voltage transmission iron tower in coal mine subsidence area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111111674.5A CN113685050A (en) | 2021-09-23 | 2021-09-23 | Deviation rectifying method for inclined extra-high voltage transmission iron tower in coal mine subsidence area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113685050A true CN113685050A (en) | 2021-11-23 |
Family
ID=78587023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111111674.5A Pending CN113685050A (en) | 2021-09-23 | 2021-09-23 | Deviation rectifying method for inclined extra-high voltage transmission iron tower in coal mine subsidence area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113685050A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007100454A (en) * | 2005-10-06 | 2007-04-19 | Sato Juken:Kk | Building sinking correction method and coupling device for building sinking correction |
| CN108843114A (en) * | 2018-05-31 | 2018-11-20 | 中国电力科学研究院有限公司 | A kind of steel tower that coping with minery differential settlement and its righting method |
| CN109162306A (en) * | 2018-10-31 | 2019-01-08 | 青岛正为能源科技有限公司 | A kind of communication steel tower differential settlement deviation correcting device and its application method |
| CN212359211U (en) * | 2020-04-27 | 2021-01-15 | 田洲 | Subsidence area steel pylons slope deviation correcting device |
| CN112459105A (en) * | 2020-12-03 | 2021-03-09 | 陕西惠天煤矿工程技术有限公司 | Dynamic jacking deviation rectifying method in coal mining process under electric power tower |
-
2021
- 2021-09-23 CN CN202111111674.5A patent/CN113685050A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007100454A (en) * | 2005-10-06 | 2007-04-19 | Sato Juken:Kk | Building sinking correction method and coupling device for building sinking correction |
| CN108843114A (en) * | 2018-05-31 | 2018-11-20 | 中国电力科学研究院有限公司 | A kind of steel tower that coping with minery differential settlement and its righting method |
| CN109162306A (en) * | 2018-10-31 | 2019-01-08 | 青岛正为能源科技有限公司 | A kind of communication steel tower differential settlement deviation correcting device and its application method |
| CN212359211U (en) * | 2020-04-27 | 2021-01-15 | 田洲 | Subsidence area steel pylons slope deviation correcting device |
| CN112459105A (en) * | 2020-12-03 | 2021-03-09 | 陕西惠天煤矿工程技术有限公司 | Dynamic jacking deviation rectifying method in coal mining process under electric power tower |
Non-Patent Citations (1)
| Title |
|---|
| 王慧刚等: "利用不平衡导线张力法对500kV同塔架设耐张倾斜杆塔的扶正", 《现代工业经济和信息化》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102817341B (en) | Construction method for segmented installation of offshore anemometer tower and combination of high-altitude manufactured parts for assembly | |
| CN104538887B (en) | A kind of lightning conducter lifts converter | |
| CN104179365A (en) | Construction method for overall iron tower displacement | |
| CN101761031A (en) | Continuous and perpendicular lifting apparatus for large segmental bridge floor beam | |
| CN102910532A (en) | Method for butting and hoisting large box type derricks in air | |
| CN113685050A (en) | Deviation rectifying method for inclined extra-high voltage transmission iron tower in coal mine subsidence area | |
| CN204386242U (en) | For the combined type truss column of 500kV transformer station | |
| CN202492845U (en) | Ground anchor capable of serially anchoring | |
| CN215419516U (en) | Pipeline protection structure | |
| CN210517669U (en) | Assembled strong and weak current channel | |
| CN204402097U (en) | For the integrated form framework of the outlet of 500kV transformer station, inlet wire, transition | |
| CN209276035U (en) | A kind of self-supporting superelevation Lift-on/Lift-off System | |
| CN204416961U (en) | Single mast single-sheaved block group lifting derrick | |
| CN104533115B (en) | For the outlet of 500kV transformer station, inlet wire, the integrated form framework of transition | |
| CN210134442U (en) | Steel cofferdam system of transferring in succession | |
| CN208347804U (en) | A kind of underground chamber high strength support structure | |
| CN203321336U (en) | Device for adopting drilling line to realize lifting of oil rig self-elevating derrick | |
| CN203188109U (en) | Multi-span ground anchor type suspension bridge | |
| CN106939724B (en) | A kind of iron towers of overhead power transmission lines fragment integral assembly apparatus and method | |
| CN206552685U (en) | A kind of sealing-tape machine tensioning device structure part | |
| CN206338037U (en) | A kind of well workover self-balancing derrick | |
| CN201298682Y (en) | transformer substrate isolating switch lifting appliance | |
| CN216240042U (en) | Holding pole standing device | |
| CN105113426A (en) | Cable connector and steel truss arch bridge cable connecting method | |
| CN204992430U (en) | Novel perpendicular circulation of cable is laid device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211123 |