CN116084757B - Emergency rescue centralizing method for inclined drainage well tower in tailing pond - Google Patents
Emergency rescue centralizing method for inclined drainage well tower in tailing pond Download PDFInfo
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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
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- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
- E04H12/345—Arrangements for tilting up whole structures or sections thereof
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Abstract
The invention discloses an emergency rescue centralizing method for an inclined drainage well tower in a tailing pond, which comprises the following steps of: s1, sinking an iron chain block into vertical section steel of a well base table surface of a drainage well tower to form a large pile of counter-pressure iron chain blocks; s2, a guyed iron ingot pile is arranged in a range of 180 degrees on the periphery of a well base table top in the horizontal direction of the sediment surface of the tailing pond on one side of the drainage well tower, which is close to the inclined direction, and a guyed ring hoop is arranged on the tower body of the drainage well tower; s3, connecting the guy cable iron ingot pile with the guy cable hoop ring by using a steel wire rope to form a radial guy cable, and adjusting the radial guy cable to restore the well tower to the original position; and S4, after the well tower is righted, grouting and solidifying are carried out on the large pile of the back-pressure iron chain blocks and the small pile of the iron chain blocks. The invention utilizes the huge pressure generated by the iron chain blocks on the tower foundation to compress the foundation to generate controllable sedimentation deformation, and simultaneously utilizes the inhaul cable iron ingot pile to apply tension to the tower body, so as to adjust the number of the iron chain blocks and the tension of the radial inhaul cables in time, prevent the collapse of the drainage well tower and restore the drainage well tower to the original position.
Description
Technical Field
The invention belongs to the technical field of well tower centralization of a tailing pond, and particularly relates to an emergency rescue centralization method of an inclined drainage well tower in the tailing pond.
Background
Tailings are ores mined by metal or nonmetal mines, are ground, valuable concentrates are selected by concentrating mills, and then solid wastes are discharged. Due to the reasons of limited economic and technical conditions, the tailings cannot be completely selected temporarily, and can only be stored in a tailing pond temporarily and properly, and the tailings can be utilized after the economic and technical conditions are mature. The mineral resources of China are rich, the operation of a tailing pond brings development to the economy of China and simultaneously a large amount of tailings are generated, and the tailing pond formed by stacking the tailings is a dangerous source of high artificial potential energy and high pollution.
The flood drainage facilities are used as necessary facilities for safe operation of the tailing pond, drainage wells, chute or open channels are often used as beach water inlet structures and are combined with subsequent flood drainage structures to form a flood drainage system. In the flood drainage facilities commonly used in tailing ponds, the frame-type drainage well is widely used due to the advantages of large water inlet capacity, economical construction cost, convenient operation and maintenance and the like. The frame-type drainage well is generally composed of a lower base (or vertical shaft) and an upper derrick part, wherein the derrick part is composed of a precast reinforced concrete arch plate, cast-in-situ reinforced concrete frame columns and ring beams, and a space formed by the columns and the arch plate is used as a water inlet channel. In the daily operation process, along with the rising of the beach surface in the warehouse, the arch plates are gradually installed to prevent the tailing continuously rising in the warehouse, and meanwhile, certain drainage capacity is always maintained.
Because the drainage well tower is often a frame type or wall type thin-wall cylinder structure built by reinforced concrete, the bottom is connected with a reinforced concrete drainage hidden pipe, the drainage well tower is deeply buried in the tailing slurry water, once damaged, serious environmental protection accidents of tailing leakage are caused, meanwhile, a tailing pond stops working, and serious loss is caused by the stop of production of enterprises; and because the drainage well is located in the center of the tailing pond, tailing water is arranged around, tailing mud is arranged at the bottom, once accidents occur, personnel and equipment are difficult to reach, and maintenance, reinforcement and rescue are very difficult.
The Chinese patent application number 201810550250.0 discloses an iron tower capable of coping with uneven settlement of a mining area and a centralizing method thereof, wherein the method comprises the following steps: (1) Determining a predicted centralizing result according to the datum point, the tower gradient angle and the root opening data; (2) Installing a substitute boot plate of the most obvious settling tower leg on the foundation iron plate according to the predicted centralizing result, and removing the connection between the most obvious settling tower leg and the foundation; (3) Respectively spreading the tension wires and righting the iron tower through the tension wires; (4) And lengthening the most obvious settling tower foot according to the predicted centralizing result. According to the centering method, the most obvious settlement tower foot, the settlement displacement thereof, the most obvious settlement tower foot length required to be increased and the displacement data of the tower foot boot plate are sequentially determined by utilizing the datum point, the tower body gradient angle and the root opening data, so that the centering method is clear in arrangement and reasonable in data, can provide reliable data support for centering the iron tower, provides a centering strategy for centering the iron tower, and increases the most obvious settlement tower foot length and replaces the boot plate, avoids integrally replacing the iron tower, and saves cost; meanwhile, the generation of larger secondary stress in the main materials and the inclined materials of the tower feet is avoided, so that the quality of the iron tower after centralizing is ensured. The Chinese patent application number 201210151526.0 discloses a method for righting a charged tower by using a charged tower righting device, and the operation method of the method comprises the sequential steps of digging a reserved pit, screwing a drill rod, fixing a pull rod, fixing a sleeve clamping ring, traction righting and pit filling tamping. The fixed steel wire rope of the hand pulling tractor can be effectively fixed by utilizing the acting force of the spiral drill rod and the pull rod, and the adjustable steel wire rope is pulled by the hand pulling tractor to pull and centralize the tower. The device has the advantages of low one-time investment cost, no damage to the towers and the wires, no limit to construction environment, short operation time, simple structure, convenient use, live working, reduced loss, economy, practicability, flexible operation, easy carrying, strong adaptability, suitability for popularization and the like.
However, the above-mentioned method is through anchoring the spiral borer on ground, then through righting the tower body, patent 201810550250.0 still needs to carry out the operation of pushing away in tower foundation department, and to the characteristics of tailing storehouse, because tailing water storage in the initial stage of tailing storehouse is not discharged outside in the storehouse, the tail sand can not grade well before the dam, the storehouse bottom tail sand is difficult to consolidate, cause the physical mechanical index of this regional tail sand lower, can't carry out anchor and push away the operation, simultaneously because the drainage well is located the tailing storehouse central authorities, be the tailing water all around, the tailing surface of water is ten m more depths, the bottom is tailing mud, harmful substance is more in the tailing water, personnel can't carry out the operation under water, can't move on the surface of water through the boat, anchor operation is comparatively difficult, and the majority of external load that the drainage well born is radial to drainage well centre direction load (for example saturated water pressure, lateral earth pressure etc.), and for current whole well structure system, the stand is only the lateral support and the constraint that the collar beam provided, lack from radial direction restraint and support, if just need to carry out the above-mentioned method, when the anchoring is located the tailing is big or not firmly in the radial direction, the drainage well is not carried in the slope, the radial direction is even taken place to have the easy to collapse in the method to take place in the drainage well.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an emergency rescue centralizing method for an inclined drainage well tower in a tailing pond, which utilizes huge pressure generated by an iron chain block on a tower foundation to compress a foundation to generate controllable sedimentation deformation, and simultaneously utilizes a circumferential guy iron ingot pile to apply tension to a tower body, so as to timely adjust the number of the circumferential guy iron ingot piles and the radial guy tension, and prevent the drainage well tower from collapsing and restoring the drainage well tower to the original position.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an emergency rescue centralizing method for an inclined drainage well tower in a tailing pond comprises the following steps:
s1, connecting iron ingots by iron chains to form iron chain blocks, conveying the iron chain blocks to the vicinity of a drainage well tower by a boat, sinking vertical profile steel on a well base table surface of the drainage well tower far away from the inclined direction along the outer side of the well tower wall, then sinking the iron chain blocks on the vertical profile steel in a blocking manner to form a half-round table-shaped back-pressure iron chain block large pile, and sinking the iron chain blocks on the well base table surface of the drainage well tower in the inclined direction to form an iron chain block small pile;
s2, conveying the iron chain blocks to the periphery of a drainage well tower by using a boat, sinking the iron chain blocks within the range of 180 degrees of the periphery of a well base table surface in the horizontal direction of the sediment surface of a tailing pond at one side of the drainage well tower, which is far away from the inclined direction, forming a plurality of circumferential guyed iron ingot stacks, and sequentially arranging a plurality of guyed ring hoops from top to bottom on the tower body of the drainage well tower;
s3, connecting the annular guy cable iron ingot pile with the guy cable hoop ring by using a steel wire rope to form a radial guy cable, and recovering the well tower to the original position by adjusting the radial guy cable;
and S4, after the well tower is righted, grouting solidification is carried out on the large pile of the back-pressure iron chain blocks and the small pile of the iron chain blocks, and the drainage well tower is further fixed.
Preferably, in step S1, the vertical section steel is located along the half circumference of the foundation surface of the drainage wellhead at the position close to the outer wall of the wellhead.
Preferably, in step S1, an iron chain is arranged on the vertical section steel, a connecting ring is arranged on the iron chain block, and the iron chain is sleeved in the connecting ring, so that the iron chain block and the vertical section steel are connected into a whole.
Preferably, in the step S2, the circumferential cable ingot pile includes a first cable ingot pile, a second cable ingot pile and a third cable ingot pile, where the first cable ingot pile is disposed at an outer periphery far from the drainage well tower, the third cable ingot pile is disposed at an outer periphery near the drainage well tower, and the second cable ingot pile is located between the first cable ingot pile and the third cable ingot pile; the rope pulling ring hoops sequentially comprise a first rope pulling ring hoop, a second rope pulling ring hoop and a third rope pulling ring hoop from top to bottom; in the step S3, the radial cable includes a first radial cable, a second radial cable and a third radial cable, where the first radial cable is located between the first cable iron ingot pile and the first cable hoop, the second radial cable is located between the second cable iron ingot pile and the second cable hoop, and the third radial cable is located between the third cable iron ingot pile and the third cable hoop.
Preferably, in step S2, 3 to 6 first, second and third dragline iron ingot stacks are all arranged within 180 ° of the periphery of the well base table surface in the horizontal direction of the silt surface of the tailing pond.
Preferably, the maximum tension of the radial cable is calculated according to the following formula:
in the method, in the process of the invention,
maximum horizontal force determined for the bending and shear load capacity of the tower body, +.>
Is a horizontal included angle between two radial inhaul cables>
Is the included angle between the radial inhaul cable and the horizontal plane.
In particular, the maximum horizontal force determined by the bending and shearing bearing capacity of the tower body
Wherein M is the bending resistance bearing capacity of the root of the tower body, and h is the distance from the tension point of the inhaul cable to the root of the tower body; wherein, the bending resistance bearing capacity of the root of the tower body
Wherein->
Design value for tensile strength of steel bar>
The cross-sectional area of the steel bar in the tension zone,
for the cross-section width>
Is the distance from the resultant force point of the compression-resistant reinforcing steel bar to the pressed edge.
Preferably, step S3 further includes connecting the first radial cable with an iron chain to form a first circumferential cable; connecting the second radial inhaul cables through an iron chain to form second annular inhaul cables; and connecting the third radial inhaul cables through an iron chain to form a third annular inhaul cable.
Preferably, in step S3, after the radial inhaul cable is formed, sand pumping holes are formed in the periphery of the large pile of the back-pressure iron chain blocks, one end of each sand pumping hole is located on the gravel layer, and the other end of each sand pumping hole is located on the sediment surface of the tailing pond.
Preferably, between step S3 and step S4, further comprises: the periphery of one side of the inclined direction of the drainage well tower is sunk into an iron chain block to form a reverse standby cable iron ingot pile, a reverse standby cable hoop ring is arranged on the body of the drainage well tower, and the reverse standby cable iron ingot pile is connected with the reverse standby cable hoop ring by a steel wire rope to form a reverse standby cable.
Preferably, 2-4 reverse standby cable iron ingots are piled up in the range of 180 degrees of the periphery of a well base table surface in the horizontal direction of the sediment surface of the tailing pond, meanwhile, the reverse standby cable iron ingots are prevented from being piled up on a culvert pipe, and then the reverse standby cables are connected through iron chains to form the annular reverse standby cables.
Compared with the prior art, the invention has the following beneficial effects:
(1) According to the emergency rescue and righting method for the inclined drainage well in the tailing pond, firstly, iron chain blocks are sunk in a position, far away from a well foundation table surface in an inclined direction, of a drainage well tower to form a large stack of half-truncated-cone-shaped back-pressure iron chain blocks, huge pressure is generated on a tower foundation of the drainage well tower due to the weight of the iron blocks, the foundation is compressed to generate controllable sedimentation deformation, the drainage well tower is partially restored, then, small stacks of the iron chain blocks are arranged on the well foundation table surface on the inclined side of the drainage well tower, larger pressure is generated on the position, close to the tower foundation, of the tower body, and the gravity center of the tower body is lowered, so that the tower body is more stable; meanwhile, after the tower body part is restored, personnel can enter the tower to observe, and subsequent construction is facilitated; and after the semicircular table-shaped back pressure iron chain blocks are piled up to recover the well tower part, the risk that the tower body is possibly broken by directly righting the tower body by using the inhaul cable can be avoided. A guy cable iron ingot pile is annularly arranged in a range of 180 degrees away from the horizontal direction of the sediment surface of the tailing pond at one side of the drainage well tower in the inclination direction, a guy cable ring hoop is arranged on the tower body of the drainage well tower, an adjustable guy cable is used for applying tension to the tower body of the drainage well tower through a plurality of guy cable ring hoops arranged on the tower body of the drainage well tower, so that the drainage well tower is prevented from collapsing, and the drainage well tower is restored to the original position by tightening the radial guy cable; and form the circumferential direction cable after connecting the radial cable of same circumferential direction, form the cable net through radial and circumferential direction cable to form the slope control to the drainage shaft tower, also can set up reverse back cable in one side of drainage shaft tower incline direction simultaneously, in order to prevent to resume the back to the too big condition emergence of reverse direction deformation.
(2) According to the emergency rescue centralizing method for the inclined drainage well in the tailing pond, the small ship is utilized to convey the iron blocks to sink, so that the inclined drainage well tower can be quickly and effectively centralized, compared with other anchoring methods (such as concrete and the like), the iron blocks have larger specific gravity, the working procedures of underwater grouting, maintenance and the like are not needed, and the tension force for centralizing the inhaul cable can be directly adjusted by adjusting the weight of the inhaul cable iron ingot pile, so that the method is particularly suitable for the environmental characteristics of the tailing pond, and has good application prospects.
(3) According to the emergency rescue and centralizing method for the inclined drainage well in the tailing pond, provided by the invention, rescue is carried out through coordination and coordination of the radial inhaul cable, the circumferential inhaul cable and the annular inhaul cable iron ingot pile, the deformation condition of a well tower is strictly monitored, the weight of the annular inhaul cable iron ingot pile and the tension of the radial inhaul cable are timely adjusted, and the inclined drainage well tower is restored to the original position; after the well tower is righted, grouting solidification is carried out on the large pile of the back pressure iron chain blocks and the small pile of the iron chain blocks at the tower foundation, so that the stability of the drainage well tower is further improved; after the construction is completed, the inhaul cable net can be reserved if necessary, until the whole rising part of the tailings submerges the well tower, and the danger is relieved.
Drawings
FIG. 1 is a schematic illustration of a drainage wellhead being tilted;
FIG. 2 is a schematic illustration of a method of righting a drainage wellhead in accordance with the present invention;
fig. 3 is a top view of a method of righting a drainage wellhead in accordance with the present invention.
Reference numerals in the drawings: 1. a drainage well tower; 2. the water surface of the tailing pond; 3. a sediment surface of a tailing pond; 4. vertical section steel; 5. large pile of back-pressure iron chain blocks; 6. small stacks of iron chain blocks; 7. a first guyed iron ingot stack; 8. a second guyed iron ingot stack; 9. a third guyed iron ingot stack; 10. a first radial cable; 11. a second radial cable; 12. a third radial cable; 13. reversely preparing a guy cable ingot pile; 14. preparing a pull rope reversely; 15. a first pull ring ferrule; 16. a second pull ring ferrule; 17. a third pull ring ferrule; 18. reverse backup pull rope ring hoops; 19. a culvert pipe; 20. a first circumferential cable; 21. a second circumferential guy cable; 22. a third circumferential guy cable; 23. sand pumping holes; 24. a gravel layer.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described 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.
Before the centralizing construction is carried out, a floating bridge is firstly built on the water surface 2 of the tailing pond to the inclined drainage well tower 1, so that personnel can conveniently observe the centralizing condition from the floating bridge entering the drainage well tower 1.
Example 1
As shown in fig. 1 and 2, the emergency rescue and righting method for the inclined drainage well tower in the tailing pond comprises the following steps:
s1, connecting iron ingots by iron chains to form iron chain blocks, conveying the iron chain blocks to the vicinity of a drainage well tower 1 by a boat, sinking vertical steel 4 onto a well base table surface of the drainage well tower 1 far away from the inclination direction along the outer side of the well wall, wherein the vertical steel 4 is provided with iron chains, connecting rings are arranged on the iron chain blocks, the connecting rings on the iron chain blocks are sleeved on the iron chains on the vertical steel, then sinking the iron chain blocks onto the vertical steel 4 in a blocking manner, connecting the iron chain blocks and the vertical steel 4 into a whole to form a half-truncated-cone-shaped back-pressure iron chain block large pile 5, and sinking the iron chain blocks onto the well base table surface of the drainage well tower 1 in the inclination direction to form an iron chain block small pile 6;
s2, conveying the iron chain blocks to the periphery of the drainage well tower 1 by using a boat, sinking the iron chain blocks within the range of 180 degrees of the periphery of a well base table surface in the horizontal direction of a sediment surface 3 of a tailing pond on one side of the drainage well tower 1, and forming a third cable iron ingot pile 9, a second cable iron ingot pile 8 and a first cable iron ingot pile 7, wherein the first cable iron ingot pile 7 is arranged on the periphery far away from the drainage well tower 1, the third cable iron ingot pile 9 is arranged on the periphery close to the drainage well tower 1, and the second cable iron ingot pile 8 is positioned between the first cable iron ingot pile 7 and the third cable iron ingot pile 9; simultaneously, a first rope pulling ring hoop 15, a second rope pulling ring hoop 16 and a third rope pulling ring hoop 17 are sequentially arranged on the tower body of the drainage well tower 1 from top to bottom;
s3, connecting the first guy cable iron ingot pile 7 with a first guy cable hoop 15 by using a steel wire rope to form a first radial guy cable 10, connecting the second guy cable iron ingot pile 8 with a second guy cable hoop 16 to form a second radial guy cable 11, and connecting the third guy cable iron ingot pile 9 with a third guy cable hoop 17 to form a third radial guy cable 12; then 4 sand pumping holes 23 are formed in the periphery of the large pile 5 of the counter-pressure iron chain blocks, one end of each sand pumping hole 23 is located on a sand layer 24, the other end of each sand pumping hole is located on the sand layer 3 of the tailing pond, and the sand at the sand layer 24 on one side of the drainage shaft tower 1 far away from the inclined direction is more beneficial to restoring the shaft tower to the original position by adjusting the tensile force of the first radial stay rope 10, the second radial stay rope 11 and the third radial stay rope 12;
and S4, after the well tower is righted, grouting solidification is carried out on the large pile 5 of the back-pressure iron chain blocks and the small pile 6 of the iron chain blocks, and the drainage well tower is further fixed.
In this embodiment, the vertical section steel 4 is disposed along the half circumference of the foundation table of the drainage well tower 1 immediately adjacent to the tower wall in step S1.
In this embodiment, in step S2, the first, second and third dragline iron ingot stacks 7, 8 and 9 are all set to 3 in a range of 180 ° around the periphery of the well base table in the horizontal direction of the silt surface 3 of the tailing pond.
In this embodiment, the included angle between the adjacent first radial cables 10 is 60 degrees, the included angle between the adjacent second radial cables 11 is 60 degrees, the included angle between the adjacent third radial cables 12 is 60 degrees, and the included angle between the radial cables and the horizontal plane is 45 degrees.
In this embodiment, the drainage well tower 1 is used as the center of a circle, the difference between the radius of the first cable iron ingot pile 7 and the radius of the second cable iron ingot pile 8 is 10m, and the difference between the radius of the second cable iron ingot pile 8 and the radius of the third cable iron ingot pile 9 is 10m.
In this embodiment, step S3 further includes connecting the first radial cable 10 through an iron chain to form a first circumferential cable 20; the second radial inhaul cable 11 is connected through an iron chain to form a second annular inhaul cable 21; the third radial stay 12 is connected by an iron chain to form a third circumferential stay 22.
In this embodiment, between step S3 and step S4, further includes: the opposite standby cable iron ingot pile 13 is formed by sinking an iron chain block at one side of the inclined direction of the drainage well tower 1, the opposite standby cable hoop 18 is arranged on the tower body of the drainage well tower 1, and the opposite standby cable iron ingot pile 13 is connected with the opposite standby cable hoop 18 by a steel wire rope to form the opposite standby cable 14.
In this embodiment, 2 reverse stay cable iron ingot piles 13 are arranged within 180 ° of the periphery of the well base table surface in the horizontal direction of the sediment surface 3 of the tailing pond.
In this embodiment, the included angle between the adjacent 2 opposite standby cables 14 is 60 degrees, and the included angle between the opposite standby cables and the horizontal plane is 45 degrees.
In this embodiment, the reverse backup cable 14 is connected by an iron chain to form a circumferential reverse backup cable.
In this embodiment, the maximum tension of the radial cable is calculated according to the formula as follows:
maximum bending load capacity of the tower bottom:
210×16×201 (2400-100-100)/1000000=1485kn.m, maximum horizontal force determined by bending and shear loading capacity of the tower body
The included angle between the radial inhaul cable and the horizontal plane is 45 degrees, the included angle between the radial inhaul cable and the horizontal plane is 60 degrees after the radial inhaul cable is divided into two parts, and the maximum pulling force of the radial inhaul cable is the maximum pulling force
The inhaul cable adopts a steel strand with the diameter of 15.2mm, and the sectional area A of the inhaul cable is s =140mm 2 ，f ptk =1720N/m 2 ，γ Q =2, steel strand bearing
，N=61kN<F, wherein F ptk A is the standard value of the tensile strength of the steel strand s Is the cross section area of the steel strand, F k Is the standard value of the tensile bearing capacity of the steel strand, gamma Q =steel strand element coefficient.
Example 2
An emergency rescue centralizing method for an inclined drainage well tower in a tailing pond comprises the following steps:
s1, connecting iron ingots by iron chains to form iron chain blocks, conveying the iron chain blocks to the vicinity of a drainage well tower 1 by a boat, sinking vertical steel 4 onto a well base table surface of the drainage well tower 1 far away from the inclination direction along the outer side of the well wall, wherein the vertical steel 4 is provided with iron chains, connecting rings are arranged on the iron chain blocks, the connecting rings on the iron chain blocks are sleeved on the iron chains on the vertical steel, then sinking the iron chain blocks onto the vertical steel 4 in a blocking manner, connecting the iron chain blocks and the vertical steel 4 into a whole to form a half-truncated-cone-shaped back-pressure iron chain block large pile 5, and sinking the iron chain blocks onto the well base table surface of the drainage well tower 1 in the inclination direction to form an iron chain block small pile 6;
s2, conveying the iron chain blocks to the periphery of the drainage well tower 1 by using a boat, sinking the iron chain blocks within the range of 180 degrees of the periphery of a well base table surface in the horizontal direction of a sediment surface 3 of a tailing pond on one side of the drainage well tower 1, and forming a third cable iron ingot pile 9, a second cable iron ingot pile 8 and a first cable iron ingot pile 7, wherein the first cable iron ingot pile 7 is arranged on the periphery far away from the drainage well tower 1, the third cable iron ingot pile 9 is arranged on the periphery close to the drainage well tower 1, and the second cable iron ingot pile 8 is positioned between the first cable iron ingot pile 7 and the third cable iron ingot pile 9; simultaneously, a first rope pulling ring hoop 15, a second rope pulling ring hoop 16 and a third rope pulling ring hoop 17 are sequentially arranged on the tower body of the drainage well tower 1 from top to bottom;
s3, connecting the first guy cable iron ingot pile 7 with a first guy cable hoop 15 by using a steel wire rope to form a first radial guy cable 10, connecting the second guy cable iron ingot pile 8 with a second guy cable hoop 16 to form a second radial guy cable 11, and connecting the third guy cable iron ingot pile 9 with a third guy cable hoop 17 to form a third radial guy cable 12; then 4 sand pumping holes 23 are formed in the periphery of the large pile 5 of the counter-pressure iron chain blocks, one end of each sand pumping hole 23 is located on a sand layer 24, the other end of each sand pumping hole is located on the sand layer 3 of the tailing pond, and the sand at the sand layer 24 on one side of the drainage shaft tower 1 far away from the inclined direction is more beneficial to restoring the shaft tower to the original position by adjusting the tensile force of the first radial stay rope 10, the second radial stay rope 11 and the third radial stay rope 12;
and S4, after the well tower is righted, grouting solidification is carried out on the large pile 5 of the back-pressure iron chain blocks and the small pile 6 of the iron chain blocks, and the drainage well tower is further fixed.
In this embodiment, the vertical section steel 4 is disposed along the half circumference of the foundation table of the drainage well tower 1 immediately adjacent to the tower wall in step S1.
In this embodiment, in step S2, the first, second and third dragline iron ingot stacks 7, 8 and 9 are all set to 4 in a range of 180 ° around the periphery of the well base table in the horizontal direction of the silt surface 3 of the tailing pond.
In this embodiment, the included angle between the adjacent first radial cables 10 is 45 degrees, the included angle between the adjacent second radial cables 11 is 45 degrees, the included angle between the adjacent third radial cables 12 is 45 degrees, and the included angle between the radial cables and the horizontal plane is 45 degrees.
In this embodiment, the drainage well tower 1 is used as the center of a circle, the difference between the radius of the first cable iron ingot pile 7 and the radius of the second cable iron ingot pile 8 is 10m, and the difference between the radius of the second cable iron ingot pile 8 and the radius of the third cable iron ingot pile 9 is 10m.
In this embodiment, step S3 further includes connecting the first radial cable 10 through an iron chain to form a first circumferential cable 20; the second radial inhaul cable 11 is connected through an iron chain to form a second annular inhaul cable 21; the third radial stay 12 is connected by an iron chain to form a third circumferential stay 22.
In this embodiment, between step S3 and step S4, further includes: the opposite standby cable iron ingot pile 13 is formed by sinking an iron chain block at one side of the inclined direction of the drainage well tower 1, the opposite standby cable hoop 18 is arranged on the tower body of the drainage well tower 1, and the opposite standby cable iron ingot pile 13 is connected with the opposite standby cable hoop 18 by a steel wire rope to form the opposite standby cable 14.
In this embodiment, the reverse stay cable iron ingot stacks 13 are arranged within 180 ° of the periphery of the well base table surface in the horizontal direction of the silt surface 3 of the tailing pond.
In this embodiment, the included angles of the adjacent opposite standby cables 14 are all 60 degrees, and the included angle between the opposite standby cables and the horizontal plane is 45 degrees.
In this embodiment, the reverse backup cable 14 is connected by an iron chain to form a circumferential reverse backup cable.
Example 3
An emergency rescue centralizing method for an inclined drainage well tower in a tailing pond comprises the following steps:
s1, connecting iron ingots by iron chains to form iron chain blocks, conveying the iron chain blocks to the vicinity of a drainage well tower 1 by a boat, sinking vertical steel 4 onto a well base table surface of the drainage well tower 1 far away from the inclination direction along the outer side of the well wall, wherein the vertical steel 4 is provided with iron chains, connecting rings are arranged on the iron chain blocks, the connecting rings on the iron chain blocks are sleeved on the iron chains on the vertical steel, then sinking the iron chain blocks onto the vertical steel 4 in a blocking manner, connecting the iron chain blocks and the vertical steel 4 into a whole to form a half-truncated-cone-shaped back-pressure iron chain block large pile 5, and sinking the iron chain blocks onto the well base table surface of the drainage well tower 1 in the inclination direction to form an iron chain block small pile 6;
s2, conveying the iron chain blocks to the periphery of the drainage well tower 1 by using a boat, sinking the iron chain blocks within the range of 180 degrees of the periphery of a well base table surface in the horizontal direction of a sediment surface 3 of a tailing pond on one side of the drainage well tower 1, and forming a third cable iron ingot pile 9, a second cable iron ingot pile 8 and a first cable iron ingot pile 7, wherein the first cable iron ingot pile 7 is arranged on the periphery far away from the drainage well tower 1, the third cable iron ingot pile 9 is arranged on the periphery close to the drainage well tower 1, and the second cable iron ingot pile 8 is positioned between the first cable iron ingot pile 7 and the third cable iron ingot pile 9; simultaneously, a first rope pulling ring hoop 15, a second rope pulling ring hoop 16 and a third rope pulling ring hoop 17 are sequentially arranged on the tower body of the drainage well tower 1 from top to bottom;
s3, connecting the first guy cable iron ingot pile 7 with a first guy cable hoop 15 by using a steel wire rope to form a first radial guy cable 10, connecting the second guy cable iron ingot pile 8 with a second guy cable hoop 16 to form a second radial guy cable 11, and connecting the third guy cable iron ingot pile 9 with a third guy cable hoop 17 to form a third radial guy cable 12; then 4 sand pumping holes 23 are formed in the periphery of the large pile 5 of the counter-pressure iron chain blocks, one end of each sand pumping hole 23 is located on a sand layer 24, the other end of each sand pumping hole is located on the sand layer 3 of the tailing pond, and the sand at the sand layer 24 on one side of the drainage shaft tower 1 far away from the inclined direction is more beneficial to restoring the shaft tower to the original position by adjusting the tensile force of the first radial stay rope 10, the second radial stay rope 11 and the third radial stay rope 12;
and S4, after the well tower is righted, grouting solidification is carried out on the large pile 5 of the back-pressure iron chain blocks and the small pile 6 of the iron chain blocks, and the drainage well tower is further fixed.
In this embodiment, the vertical section steel 4 is disposed along the half circumference of the foundation table of the drainage well tower 1 immediately adjacent to the tower wall in step S1.
In this embodiment, in step S2, 6 first, second and third dragline iron ingot stacks 7, 8 and 9 are all set up within 180 ° of the periphery of the well base table in the horizontal direction of the silt surface 3 of the tailing pond.
In this embodiment, the included angle between the adjacent first radial cables 10 is 30 degrees, the included angle between the adjacent second radial cables 11 is 30 degrees, the included angle between the adjacent third radial cables 12 is 30 degrees, and the included angle between the radial cables and the horizontal plane is 45 degrees.
In this embodiment, the drainage well tower 1 is used as the center of a circle, the difference between the radius of the first cable iron ingot pile 7 and the radius of the second cable iron ingot pile 8 is 10m, and the difference between the radius of the second cable iron ingot pile 8 and the radius of the third cable iron ingot pile 9 is 10m.
In this embodiment, step S3 further includes connecting the first radial cable 10 through an iron chain to form a first circumferential cable 20; the second radial inhaul cable 11 is connected through an iron chain to form a second annular inhaul cable 21; the third radial stay 12 is connected by an iron chain to form a third circumferential stay 22.
In this embodiment, between step S3 and step S4, further includes: the opposite standby cable iron ingot pile 13 is formed by sinking an iron chain block at one side of the inclined direction of the drainage well tower 1, the opposite standby cable hoop 18 is arranged on the tower body of the drainage well tower 1, and the opposite standby cable iron ingot pile 13 is connected with the opposite standby cable hoop 18 by a steel wire rope to form the opposite standby cable 14.
In this embodiment, 4 reverse stay cable iron ingot stacks 13 are arranged within 180 ° of the periphery of the well base table surface in the horizontal direction of the sediment surface 3 of the tailing pond.
In this embodiment, the included angles of the adjacent opposite standby cables 14 are all 40 degrees, and the included angle between the opposite standby cables and the horizontal plane is 45 degrees.
In this embodiment, the reverse backup cable 14 is connected by an iron chain to form a circumferential reverse backup cable.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An emergency rescue centralizing method for an inclined drainage well tower in a tailing pond is characterized by comprising the following steps of:
s1, connecting iron ingots by iron chains to form iron chain blocks, conveying the iron chain blocks to the vicinity of a drainage well tower (1) by a boat, sinking vertical section steel (4) on a well base table surface of the drainage well tower (1) far away from an inclined direction along the outer side of the well tower wall, then sinking the iron chain blocks on the vertical section steel (4) in a blocking manner to form a half-truncated-cone-shaped back pressure iron chain block large pile (5), and sinking the iron chain blocks on the well base table surface of the drainage well tower (1) in the inclined direction to form an iron chain block small pile (6);
s2, conveying the iron chain blocks to the periphery of a drainage well tower (1) by using a boat, sinking the iron chain blocks within the range of 180 degrees of the periphery of a well base table surface on the horizontal direction of a sediment surface (3) of a tailing pond on one side, far away from the inclined direction, of the drainage well tower (1) to form a plurality of circumferential guyed iron ingot piles, and sequentially arranging a plurality of guyed ring hoops from top to bottom on a tower body of the drainage well tower (1);
s3, connecting the annular guy cable iron ingot pile with the guy cable hoop ring by using a steel wire rope to form a radial guy cable, and recovering the well tower to the original position by adjusting the radial guy cable;
s4, after the well tower is righted, grouting solidification is carried out on the large iron chain block pile (5) and the small iron chain block pile (6), and the drainage well tower is further fixed;
the vertical section steel (4) in the step S1 is closely arranged on the outer wall of the well tower along the half circumference of the well base table surface of the drainage well tower (1); in the step S1, an iron chain is arranged on the vertical section steel (4), a connecting ring is arranged on the iron chain block, and the iron chain is sleeved in the connecting ring, so that the iron chain block and the vertical section steel (4) are connected into a whole.
2. The emergency rescue centralizing method for the inclined drainage shaft tower in the tailing pond according to claim 1, wherein the annular guy iron ingot stacks in the step S2 comprise a first guy iron ingot stack (7), a second guy iron ingot stack (8) and a third guy iron ingot stack (9), the first guy iron ingot stack (7) is arranged at the periphery far away from the drainage shaft tower (1), the third guy iron ingot stack (9) is arranged at the periphery close to the drainage shaft tower (1), and the second guy iron ingot stack (8) is arranged between the first guy iron ingot stack (7) and the third guy iron ingot stack (9); the rope pulling ring hoops sequentially comprise a first rope pulling ring hoop (15), a second rope pulling ring hoop (16) and a third rope pulling ring hoop (17) from top to bottom; in the step S3, the radial inhaul cable comprises a first radial inhaul cable (10), a second radial inhaul cable (11) and a third radial inhaul cable (12), wherein the first radial inhaul cable is positioned between the first inhaul cable iron ingot pile (7) and the first inhaul cable ring hoop (15), the second radial inhaul cable is positioned between the second inhaul cable iron ingot pile (8) and the second inhaul cable ring hoop (16), and the third radial inhaul cable is positioned between the third inhaul cable iron ingot pile (9) and the third inhaul cable ring hoop (17).
3. The emergency rescue centralizing method for the inclined drainage well tower in the tailing pond according to claim 2, wherein in the step S2, 3-6 first inhaul cable iron ingot stacks (7), second inhaul cable iron ingot stacks (8) and third inhaul cable iron ingot stacks (9) are arranged within 180 degrees of the periphery of a well base table surface in the horizontal direction of a sediment surface (3) of the tailing pond.
4. The emergency centralizing method for the inclined drainage towers in the tailing pond according to claim 2, wherein the maximum pulling force of the radial inhaul cables is calculated according to the following formula:
wherein N is Horizontal level The maximum horizontal force determined for the bending resistance and the shearing resistance bearing capacity of the tower body is that alpha is a horizontal included angle between two radial inhaul cables after the same radial inhaul cable is divided into two parts, and beta is an included angle between the radial inhaul cable and the horizontal plane.
5. The emergency centralizing method of the inclined drainage well tower in the tailing pond according to claim 2, wherein the step S3 further comprises the step of connecting the first radial stay ropes (10) through iron chains to form first annular stay ropes (20); the second radial inhaul cable (11) is connected through an iron chain to form a second annular inhaul cable (21); and connecting the third radial inhaul cables (12) through iron chains to form a third annular inhaul cable (22).
6. The emergency rescue and righting method of the inclined drainage well tower in the tailing pond according to claim 1, wherein the method further comprises the step of arranging sand pumping holes (23) on the periphery of the large pile (5) of the back pressure iron chain blocks after forming radial inhaul cables in the step S3, wherein one ends of the sand pumping holes (23) are positioned on a gravel layer (24), and the other ends of the sand pumping holes are positioned on a sediment surface (3) of the tailing pond.
7. The emergency centralizing method for the inclined drainage towers in the tailing pond according to claim 1, wherein the emergency centralizing method further comprises the following steps between the step S3 and the step S4: the periphery of one side of the inclined direction of the drainage well tower (1) is sunk into an iron chain block to form a reverse standby cable iron ingot pile (13), a reverse standby cable hoop ring (18) is arranged on the body of the drainage well tower (1), and the reverse standby cable iron ingot pile (13) is connected with the reverse standby cable hoop ring (18) by a steel wire rope to form a reverse standby cable (14).
8. The emergency rescue centralizing method for the inclined drainage well tower in the tailing pond according to claim 1, wherein 2-4 reverse stay ropes are arranged on the periphery of a well base table top in the horizontal direction of a sediment surface (3) of the tailing pond in a range of 180 degrees by a reverse stay rope iron ingot pile (13), and then the reverse stay ropes (14) are connected through iron chains to form a circumferential reverse stay rope.
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| CN103422680B (en) * | 2012-05-16 | 2015-12-02 | 孟凡辉 | Charged shaft tower erection device is used charged shaft tower to be carried out to the method for righting |
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