CN108501187B - Deformable prefabricated template of operation defect tunnel assembly type structure - Google Patents
Deformable prefabricated template of operation defect tunnel assembly type structure Download PDFInfo
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- CN108501187B CN108501187B CN201810555458.1A CN201810555458A CN108501187B CN 108501187 B CN108501187 B CN 108501187B CN 201810555458 A CN201810555458 A CN 201810555458A CN 108501187 B CN108501187 B CN 108501187B
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- layer steel
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- hydraulic telescopic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/02—Moulds with adjustable parts specially for modifying at will the dimensions or form of the moulded article
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
- B28B17/0081—Process control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/06—Moulds with flexible parts
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses an operation defect tunnel assembly structure deformable prefabricated formwork which is applied to the field of operation tunnel defect treatment and comprises a base, a hollow arc-shaped bracket, a bottom die, two opposite-opening cover dies or a side single-opening cover die, two side dies and two end dies; an electric control hydraulic telescopic rod is arranged between the bottom die and the base; the cover die comprises an outer layer steel plate, an inner layer steel die and an electric control hydraulic telescopic rod arranged between the outer layer steel plate and the inner layer steel die; the hollow sleeve is sleeved on a guide post arranged above the base and can be fixed with the guide post through a first tightening bolt; the outer side surface of the end die is fixedly connected with the hollow sleeve, and the two ends of the end die are connected with the flanging of the side die through second tightening bolts. According to the invention, through automatically adjusting the curves of the bottom die and the cover die, replacing the side die and adjusting the end die, lining segments with different thicknesses and different curves can be produced according to actual demands of the damaged tunnel, so that the cost of purchasing/manufacturing different dies for producing different segments is reduced.
Description
Technical Field
The invention belongs to the field of tunnel engineering application, and particularly relates to an operation defect tunnel assembly type structure deformable prefabricated template.
Background
The highway engineering construction is continuously in depth, a large number of tunnels are changed from new construction to operation, and along with the increase of the service time of the tunnels, the defects of design and construction are gradually revealed, and the damage of the highway tunnels is widely generated. The occurrence of cracking, water seepage, block dropping and other diseases damages the visual look, disperses the attention of drivers, and causes safety accidents with serious economic loss and social influence. Aiming at the current situation of diseases, how to treat diseases rapidly after finding out the diseases is always a research hotspot.
In engineering application, treatment measures such as arch changing, grouting, steel belt sticking and three lining are common, but certain problems exist, the arch changing time is long, traffic is interrupted, the grouting, steel belt sticking and reinforcing strength is limited, the surface visual damage is obvious, and the three lining is easy to cause limit invasion. Along with the wide application and verification of the assembly lining structure in the shield tunnel, the method has the advantages of quick treatment aging, good effect, less operation interference, low manpower requirement and the like, and the assembly lining structure is prefabricated by a factory, so that the quality precision of the assembly lining structure is high in reliability, and the assembly lining structure is an important method for treating highway tunnel diseases.
The existing fabricated lining structure is mainly applied to shield tunnels, so that certain exploration is performed in newly built highway tunnels, and no use precedent is provided in the operation tunnel disease treatment. The contour of the highway tunnel lining is commonly a three-center circle, a five-center circle and the like, the contour of the tunnel changes along with the different grades and design speeds of the highway, and if the local reinforcement is carried out, the contour is affected by the affected parts and the damage degree, and the contour is greatly different from the single-center circle and the single-diameter condition of the common shield tunnel.
Because the mould precision requirement is high, manufacturing cost is high, from the design end, the lining mould that is applicable to multiple curve constitution, thickness requirement is manufactured, has important engineering meaning, has decided the market prospect of assembly structure reinforcement application.
Disclosure of Invention
Therefore, the invention aims to provide the deformable prefabricated template with the assembled structure for operating the defective tunnel, which can produce lining segments with different thicknesses and different curve compositions according to the actual requirements of defective tunnel treatment, thereby reducing the cost of purchasing/manufacturing different dies for producing different segments.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides an operation disease tunnel assembled structure deformable prefabricated form, includes base, sets up the cavity arc support of base top to and set up a die block, two split type cover mould or a side single open type cover mould, two side forms and two end forms that enclose into arc massive structure above the cavity arc support; a plurality of electric control hydraulic telescopic rods are arranged between the bottom die and the base; the cover die comprises an outer layer steel plate, an inner layer steel die and a plurality of electric control hydraulic telescopic rods arranged between the outer layer steel plate and the inner layer steel die, and one side of the cover die is rotatably arranged on an outwards inclined hollow sleeve through a rotating shaft; the hollow sleeve is sleeved on a guide post arranged above the base and can be fixed with the guide post through a first tightening bolt; the outer side surface of the end die is fixedly connected with the hollow sleeve, and the two ends of the end die are connected with the flanging of the side die through second tightening bolts; the side dies are at least six different heights, the flanging of each side die is provided with screw hole sections, and a plurality of screw holes for the second tightening bolts to be connected are formed in the screw hole sections at intervals; when the bottom of the end die is fixed to the uppermost threaded hole by the second tightening bolt, the height of the end die is still lower than that of the end part of the bottom die; the bottom die and the inner layer steel die are made of high-plasticity steel, high-strength plastic or high-performance alloy materials; the side dies, the end dies and the outer layer steel plates are made of high-strength steel.
Preferably, the screw hole sections are 30cm long, and six screw holes for the second fastening bolts to be connected are distributed according to the interval of 5 cm.
Preferably, the electric control hydraulic telescopic rods are arranged between the bottom die and the base, and the outer layer steel plate and the inner layer steel die respectively, at least two rows of electric control hydraulic telescopic rods are arranged, and each row of electric control hydraulic telescopic rods is 5-7.
Preferably, the high-strength steel is 420SS corrosion-resistant plastic die steel or G-STAR corrosion-resistant plastic die steel or Cr12 die steel.
Preferably, the device further comprises a base with adjustable height arranged below the base; an electric control hydraulic telescopic rod is also arranged in the base.
Preferably, the outer side of the side die is provided with a plurality of transverse and longitudinal reinforcing ribs, and the distance between the adjacent reinforcing ribs is 10-20 cm.
The invention has the beneficial effects that: according to the invention, through automatically adjusting the curves of the bottom die and the cover die, replacing the side die and adjusting the end die, lining segments with different thicknesses and different curves can be produced according to actual demands of the damaged tunnel, so that the cost of purchasing/manufacturing different dies for producing different segments is reduced.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention provides the following drawings for description:
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an enlarged partial schematic view of the region M in FIG. 1;
fig. 3 is a front view of the present invention.
The figures are marked as follows: the device comprises a base 1, a hollow arc-shaped support 2, a bottom die 3, a cover die 4, an outer steel plate 41, an inner steel die 42, a side die 5, a flanging 51, a second tightening bolt 52, a screw hole section 53, an end die 6, an electric control hydraulic telescopic rod 7, a rotating shaft 8, a hollow sleeve 9, a guide post 10, a first tightening bolt 11 and a base 12.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1-3, a deformable prefabricated formwork of an operation defect tunnel assembly structure comprises a base 1, a hollow arc-shaped support 2 arranged above the base 1, a bottom die 3, two split cover dies 4, two side dies 5 and two end dies 6, wherein the bottom die 3 is arranged above the hollow arc-shaped support 2 and surrounds an arc-shaped block structure, and the arc-shaped block structure is a space for forming lining segments by a concrete fixed die; a plurality of electric control hydraulic telescopic rods 7 are arranged between the bottom die 3 and the base 1, and in fig. 1 and 3, only one electric control hydraulic telescopic rod is shown because the electric control hydraulic telescopic rods are shielded by the hollow arc-shaped bracket 2; the cover die 4 comprises an outer layer steel plate 41, an inner layer steel die 42 and a plurality of electric control hydraulic telescopic rods 7 arranged between the outer layer steel plate and the inner layer steel die; one side of the cover die 4 is rotatably arranged on an outwards inclined hollow sleeve 9 through a rotating shaft 8; referring to fig. 2 in detail, the hollow sleeve 9 is sleeved on a guide post 10 arranged above the base 1 and can be fixed with the guide post by a first tightening bolt 11; the outer side surface of the end die 6 is fixedly connected with the hollow sleeve 9, and two ends of the end die 6 are connected with the flanging 51 of the side die 5 through second tightening bolts 52; the side dies 5 are at least six kinds of different heights, the flange 51 of each side die 5 is provided with the same screw hole section 53 with the length of 30cm, six screw holes for the second fastening bolts 52 to be connected are distributed on the screw hole section according to the interval of 5cm, wherein the screw holes are not marked by numbers, and the positions of the screw holes are the positions of the second fastening bolts 52; when the bottom of the end die 6 is fixed to the uppermost threaded hole by the second tightening bolt 52, the height of the end die is still lower than the height of the end part of the bottom die 3, so that when the end die 6 is lifted to the highest position, no gap for leaking concrete exists between the end die 6 and the bottom die 3; the bottom die 3 and the inner layer steel die 42 are made of high-plasticity steel, high-strength plastic or high-performance alloy materials; the side dies 5, the end dies 6 and the outer layer steel plate 41 are made of high-strength steel.
Realize the production regulation of different curve lining segments: after the target curve of the lining segment is recorded in the computer system, the target distance between the bottom die 3 and the base 1 and the target distance between the electric control hydraulic telescopic rod 7 between the outer steel plate 41 and the inner steel die 42 and the base 1 are converted into different characteristic points, and after the electric control hydraulic telescopic rod 7 to be adjusted and the distance to be adjusted are identified, the computer system controls the corresponding electric control hydraulic telescopic rod 7 to correspondingly stretch and retract until the curves of the cover die 4 and the bottom die 3 are consistent with the target curve or reach the designed tolerance range. All the adjustment of the electric control hydraulic telescopic rods 7 is cooperatively controlled through the whole system, so that the positioning precision of different characteristic points is improved, damage caused by uncoordinated deformation of the cover die 4 or the bottom die 3 is prevented, the manual labor is reduced, and the adjustment efficiency is improved.
The bottom die 3 is made of high-plasticity steel or high-strength plastic, namely has deformation and bearing capacity and can support and bear the jacking action of the electric control hydraulic telescopic rod 7. The inner steel mould 42 is made of high-plasticity steel or high-strength plastic and has the same principle. The outer layer steel plate 41 is made of high-strength steel and mainly aims to provide a counterforce structure for deformation adjustment of the cover die. The side dies 5 and the end dies 6 are also made of high-strength steel materials because they do not need to bear the action of lifting deformation.
The controlled mode between the electric control hydraulic telescopic rod 7 and the computer system is a mature control technology; the distance between the extending point of the electric control hydraulic telescopic rod 7 and the base 1 is used as a characteristic point to be compared with a target curve of a lining segment recorded in a computer, so that the expansion and contraction of the electric control hydraulic telescopic rod 7 are automatically regulated and controlled, and the electric control hydraulic telescopic rod is also a mature closed loop contrast control technology. Therefore, these two points are not described in detail in the present application.
Realize the production regulation of different thickness lining segment, at first, dismantle the change side form: according to the target thickness of the lining segment, a proper type is selected from six side forms with different heights, and the replacement is realized by detaching the second tightening bolts 52 on the flange 51. Then, the end mold is stretched: referring to fig. 2, since one side of the cover die 4 is rotatably disposed on an outwardly inclined hollow sleeve 9 via a rotation shaft 8, the hollow sleeve 9 is sleeved on a guide post 10 disposed above the base 1, and the outer side surface of the end die 6 is fixedly connected with the hollow sleeve 9, when the first tightening bolt 11 is removed, the hollow sleeve 9 and the cover die 4 are synchronously lifted up (along the flange 51) in an inclined manner when the end die 6 is lifted up. Because the flange 51 of each side die 5 is provided with the screw hole section 53 with the same length of 30cm, six screw holes for the second fastening bolts 52 to be connected are distributed on the screw hole section according to the interval of 5cm, the end die can be lifted to six gear positions, and the end die can be fixed by the second fastening bolts 52 only through matching the corresponding screw holes on the two sides of the end die with at least one screw hole on the screw hole section 53; the bottom of the end form 6 is here fixed to the uppermost threaded hole by the second clamping bolt 52, which is still at a lower level than the end of the bottom form 3, so that it is ensured that no gap for leaking concrete is present between the end form 6 and the bottom form 3 when the end form 6 is lifted upwards to the highest position.
According to the invention, through automatically adjusting the curves of the bottom die and the cover die, replacing the side die and adjusting the end die, lining segments with different thicknesses and different curves can be produced according to actual demands of the damaged tunnel, so that the cost of purchasing/manufacturing different dies for producing different segments is reduced.
Further, in this embodiment, at least two rows of electric control hydraulic telescopic rods are respectively arranged between the bottom die and the base, and between the outer layer steel plate and the inner layer steel die, and each row of electric control hydraulic telescopic rods is 5-7, as shown in fig. 3, of course, other arrangement modes can be adopted according to the requirement of curve control precision. The higher the density of the arranged electric control hydraulic telescopic rod is, the higher the curve adjusting precision is correspondingly.
Further, the high-strength steel adopted in the embodiment is 420SS corrosion-resistant plastic die steel or G-STAR corrosion-resistant plastic die steel or Cr12 die steel.
Further, the embodiment also comprises a base 12 with adjustable height arranged below the base 1; an electrically controlled hydraulic telescopic rod 7 (internal structure, not shown) is also provided inside the base 12. The placement angle of the whole mold is adjusted through the height change of the base 12 so as to realize the minimum inclination angle of the poured concrete and improve the finishing quality of the prefabricated structure.
Further, the lateral mold 5 used in this embodiment has a plurality of transverse and longitudinal reinforcing ribs (not shown in the figure), the distance between adjacent reinforcing ribs is 10-20 cm, and the reinforcing rib parts avoid the threaded holes.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (4)
1. An operation disease tunnel assembled structure deformable prefabricated form, its characterized in that: the mold comprises a base, a hollow arc-shaped bracket arranged above the base, and a bottom mold, two split cover molds or a side single open cover mold, two side molds and two end molds which are arranged above the hollow arc-shaped bracket and are surrounded into an arc-shaped block structure; a plurality of electric control hydraulic telescopic rods are arranged between the bottom die and the base; the cover die comprises an outer layer steel plate, an inner layer steel die and a plurality of electric control hydraulic telescopic rods arranged between the outer layer steel plate and the inner layer steel die, and one side of the cover die is rotatably arranged on an outwards inclined hollow sleeve through a rotating shaft; the hollow sleeve is sleeved on a guide post arranged above the base and can be fixed with the guide post through a first tightening bolt; the outer side surface of the end die is fixedly connected with the hollow sleeve, and the two ends of the end die are connected with the flanging of the side die through second tightening bolts; the side dies are at least six different heights, the flanging of each side die is provided with screw hole sections, and a plurality of screw holes for the second tightening bolts to be connected are formed in the screw hole sections at intervals; when the bottom of the end die is fixed to the uppermost threaded hole by the second tightening bolt, the height of the end die is still lower than that of the end part of the bottom die; the bottom die and the inner layer steel die are made of high-plasticity steel, high-strength plastic or high-performance alloy materials; the side dies, the end dies and the outer layer steel plates are made of high-strength steel; the high-strength steel is 420SS corrosion-resistant plastic die steel or G-STAR corrosion-resistant plastic die steel or Cr12 die steel; the device also comprises a base with adjustable height, wherein the base is arranged below the base; an electric control hydraulic telescopic rod is also arranged in the base.
2. The operational defect tunnel fabricated structured deformable prefabricated formwork of claim 1, wherein: the screw hole sections are 30cm long, and six screw holes for the second fastening bolts to be connected are distributed according to the interval of 5 cm.
3. The operational defect tunnel fabricated structured deformable prefabricated formwork of claim 1, wherein: the electric control hydraulic telescopic rods are arranged between the bottom die and the base, and the outer layer steel plate and the inner layer steel die respectively, at least two rows of electric control hydraulic telescopic rods are arranged, and each row of electric control hydraulic telescopic rods is 5-7.
4. The operational defect tunnel fabricated structured deformable prefabricated formwork of claim 1, wherein: the outside of the side mould is provided with a plurality of transverse and longitudinal reinforcing ribs, and the distance between the adjacent reinforcing ribs is 10-20 cm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810555458.1A CN108501187B (en) | 2018-06-01 | 2018-06-01 | Deformable prefabricated template of operation defect tunnel assembly type structure |
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| CN201810555458.1A CN108501187B (en) | 2018-06-01 | 2018-06-01 | Deformable prefabricated template of operation defect tunnel assembly type structure |
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| CN108501187A CN108501187A (en) | 2018-09-07 |
| CN108501187B true CN108501187B (en) | 2023-05-12 |
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| CN109203214B (en) * | 2018-10-30 | 2020-06-26 | 秦皇岛天业通联重工科技有限公司 | Oversized-diameter rectangular concrete steel mould structure and manufacturing method thereof |
| CN113290675B (en) * | 2021-06-22 | 2022-08-23 | 石家庄铁道大学 | Three-arch section radian-adjustable detachable template |
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