CN111963207A - Support limiting device for adjusting tunnel secondary lining concrete reinforcement protective layer - Google Patents
Support limiting device for adjusting tunnel secondary lining concrete reinforcement protective layer Download PDFInfo
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- CN111963207A CN111963207A CN202010783158.6A CN202010783158A CN111963207A CN 111963207 A CN111963207 A CN 111963207A CN 202010783158 A CN202010783158 A CN 202010783158A CN 111963207 A CN111963207 A CN 111963207A
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- lining concrete
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- 239000004567 concrete Substances 0.000 title claims abstract description 53
- 230000002787 reinforcement Effects 0.000 title claims abstract description 47
- 239000011241 protective layer Substances 0.000 title claims abstract description 36
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 13
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000011378 shotcrete Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
A supporting and limiting device for adjusting a tunnel secondary lining concrete reinforcement protective layer relates to the field of supporting devices. This support stop device of two lining concrete reinforcing bar protective layers in regulation tunnel includes the fixed plate, the hollow fixed pipe that one end is connected with the fixed plate, slide and insert and locate fixed pipe and keep away from connecting pipe and the spacing bolt of fixed plate one end, a plurality of fixed orificess have been seted up on the fixed plate, the one end terminal surface that fixed pipe was kept away from to the connecting pipe is equipped with the criss-cross constant head tank, a plurality of spacing holes have been seted up to the connecting pipe outer wall, at least one locating hole has been seted up to the fixed outside of tubes wall, when the connecting pipe removed along fixed pipe, make spacing bolt pass. The application provides a support stop device of two lining concrete reinforcing bar protective layers in regulation tunnel can carry out effectual support to two lining concrete reinforcing bars in tunnel to two fixed lining reinforcing bars are in order to guarantee to control reinforcing bar protective layer thickness in the design range.
Description
Technical Field
The application relates to the field of supporting devices, in particular to a supporting and limiting device for adjusting a concrete reinforcement protective layer of a tunnel secondary lining.
Background
Because the thickness of the steel bar protective layer of the concrete of the secondary lining of the tunnel is larger due to the influence of factors such as the limitation of the construction technology, the construction condition of the tunnel and the like, the poor control of the thickness of the steel bar protective layer is an important factor causing shrinkage cracks, which can cause the instability of the concrete structure of the secondary lining and further endanger the driving safety, the method is different from the prior concrete structure that the inner mould and the outer mould are adopted to carry out the molding and dimension fixing structure, the thickness control of the concrete protective layer generally adopts the same-grade cement mortar cushion blocks to bind on the inner steel bars and the outer steel bars to achieve the effect of controlling the thickness of the concrete steel bar protective layer to be in the design range, but the secondary lining concrete of the tunnel only has one side, namely the two-lining trolley outer mould and the other side is the primary support sprayed concrete, because the uncertainty of the blasting construction of the, the process control of the sprayed concrete resilience and the manual spraying of the primary support concrete is not accurate, so that the sprayed concrete primary support surface is partially or massively under-sprayed, at the moment, the under-sprayed concrete cannot play a role of supporting the limiting steel bars by binding the cement cushion blocks, and the secondary additional spraying is adopted when the thickness of the primary support sprayed concrete reaches the thickness required by the standard design, so that a large amount of machine shifts and labor cost are wasted, and the progress of the construction period is prolonged.
Therefore, a need exists for a device for fixing the installation position of a two-lining reinforcing steel bar aiming at a primary support surface and a two-lining reinforcing steel bar supporting device so as to control a reinforcing steel bar protection layer within a qualified range after concrete pouring.
Disclosure of Invention
An object of this application is to provide a support stop device of two lining concrete reinforcing bar protective layers in regulation tunnel, it can carry out effectual support to two lining concrete reinforcing bars in the tunnel to two fixed lining reinforcing bars are in order to guarantee to control reinforcing bar protective layer thickness in the design range.
The embodiment of the application is realized as follows:
the embodiment of the application provides a support stop device of two lining concrete reinforcing bar protective layers in regulation tunnel, it includes the fixed plate, hollow fixed pipe that one end is connected with the fixed plate, slide and insert and locate fixed pipe and keep away from connecting pipe and the spacing bolt of fixed plate one end, a plurality of fixed orificess have been seted up on the fixed plate, the one end terminal surface that fixed pipe was kept away from to the connecting pipe is equipped with the criss-cross constant head tank, a plurality of spacing holes have been seted up to the connecting pipe outer wall, at least one locating hole has been seted up to the fixed outside of tubes wall, when the connecting pipe removed along fixed pipe, make spacing bolt pass a.
In some alternative embodiments, a support rod is connected between the fixing plate and the fixing tube.
In some alternative embodiments, the end surface of the connecting pipe, which is far away from the fixing pipe, is provided with four bumps, and the four bumps enclose to form the positioning groove.
In some optional embodiments, a sliding groove is formed in an end face, away from the fixed pipe, of the connecting pipe, two sliding blocks are arranged in the sliding groove, one ends of the two sliding blocks extend out of the sliding groove respectively and then are connected with sliding rails, each sliding rail is connected with two protruding blocks capable of moving along the sliding rail, and the extending direction of the sliding groove is perpendicular to the extending direction of the sliding rail.
In some optional embodiments, each slider is connected with a locking bolt that runs through out the connecting pipe, and every locking bolt runs through the one end of running through out the connecting pipe and has a corresponding locking nut through threaded connection, and the connecting pipe is seted up the bar hole with the spout intercommunication, and the slider drives the locking bolt along the bar hole removal when moving along the spout.
In some alternative embodiments, each of the protrusions is threadedly connected with a positioning bolt, and the positioning bolt is configured to move along an axial direction thereof to press or stop pressing against the corresponding slide rail when rotated.
In some optional embodiments, the positioning device further comprises a positioning plate, and the positioning plate is provided with a positioning hole clamped with the four bumps.
In some optional embodiments, the device further comprises a plurality of connecting bolts, and the connecting bolts are used for respectively passing through and connecting the positioning plate and one of the lugs in sequence.
In some alternative embodiments, a pressure sensor is provided within the positioning slot.
The beneficial effect of this application is: the support stop device of two lining concrete reinforcing bar protective layers in regulation tunnel that this embodiment provided includes the fixed plate, the hollow fixed pipe that one end is connected with the fixed plate, slide and insert and locate fixed pipe and keep away from connecting pipe and the spacing bolt of fixed plate one end, a plurality of fixed orificess have been seted up on the fixed plate, the one end terminal surface that fixed pipe was kept away from to the connecting pipe is equipped with the criss-cross constant head tank, a plurality of spacing holes have been seted up to the connecting pipe outer wall, at least one locating hole has been seted up to the fixed outside of tubes wall, when the connecting pipe removed along fixed pipe, make spacing. The support stop device of two lining concrete reinforcing bar protective layers in regulation tunnel that this embodiment provided can carry out effectual support to two lining concrete reinforcing bars in the tunnel to two fixed lining reinforcing bars are in order to guarantee to control reinforcing bar protective layer thickness in the design range.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a supporting and limiting device for adjusting a protective layer of a concrete reinforcement for a secondary lining of a tunnel according to embodiment 1 of the present application;
fig. 2 is an exploded structural schematic view of a supporting and limiting device for adjusting a protective layer of a concrete reinforcement in a secondary lining of a tunnel according to embodiment 1 of the present application;
fig. 3 is a schematic structural diagram of a cross portion of a transverse steel bar and a longitudinal steel bar of a support reinforcing mesh of a support limiting device for adjusting a protective layer of a concrete reinforcement in a tunnel secondary lining according to embodiment 1 of the present application;
fig. 4 is a schematic structural diagram of two supporting and limiting devices for adjusting a protective layer of a concrete reinforcement for a secondary lining of a tunnel according to embodiment 1 of the present application, which respectively support intersections of two transverse reinforcements and two longitudinal reinforcements of a mesh reinforcement;
fig. 5 is a schematic structural diagram illustrating a connection between a connecting pipe and a positioning plate of the support limiting device for adjusting a protective layer of a secondary lining concrete reinforcement in a tunnel according to embodiment 2 of the present application;
fig. 6 is a schematic structural diagram of a connecting pipe of a support limiting device for adjusting a protective layer of a secondary lining concrete reinforcement in a tunnel according to embodiment 2 of the present application.
Fig. 7 is a schematic structural diagram of a connecting pipe of a support limiting device for adjusting a protective layer of a secondary lining concrete reinforcement in a tunnel according to embodiment 3 of the present application;
fig. 8 is an exploded structural schematic diagram of a connecting pipe of a support limiting device for adjusting a protective layer of a secondary lining concrete reinforcement in a tunnel according to embodiment 3 of the present application.
In the figure: 100. a fixing plate; 110. a fixed tube; 120. a connecting pipe; 130. a limit bolt; 140. a fixing hole; 150. positioning a groove; 160. a limiting hole; 170. positioning holes; 180. a support bar; 190. a bump; 200. a chute; 210. a slider; 220. a slide rail; 230. locking the bolt; 240. a lock nut; 250. a strip-shaped hole; 260. positioning the bolt; 270. positioning a plate; 280. positioning holes; 290. a connecting bolt; 300. a first bolt hole; 310. a second bolt hole; 400. a pressure sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when in use, and are used only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The characteristics and performance of the supporting and limiting device for adjusting the protective layer of the concrete reinforcement for the secondary lining of the tunnel are further described in detail with reference to the following embodiments.
Example 1
As shown in fig. 1, 2, 3, and 4, an embodiment of the present application provides a supporting and limiting device for adjusting a tunnel secondary lining concrete reinforcement protection layer, which includes a fixing plate 100, a hollow square fixing pipe 110 having one end connected to the fixing plate 100, a square connecting pipe 120 slidably inserted into one end of the fixing pipe 110 away from the fixing plate 100, and a limiting bolt 130, wherein the fixing plate 100 is provided with 2 fixing holes 140 arranged at intervals along a length direction thereof, an end surface of the connecting pipe 120 away from the fixing pipe 110 is provided with a cross-shaped positioning slot 150, an end surface of the connecting pipe 120 away from the fixing pipe 110 is provided with four protrusions 190, and the four protrusions 190 surround to form the positioning slot 150; the outer wall of the connecting pipe 120 is provided with 2 limiting holes 160, the outer wall of the fixing pipe 110 is provided with 1 positioning hole 170, when the connecting pipe 120 moves along the fixing pipe 110, the limiting bolt 130 sequentially passes through one positioning hole 170 and one limiting hole 160, and a supporting rod 180 is connected between the fixing plate 100 and the fixing pipe 110.
The supporting and limiting device for adjusting a tunnel secondary lining concrete reinforcement protection layer provided by this embodiment is used for supporting and fixing a tunnel secondary lining concrete reinforcement so as to control the thickness range of the reinforcement protection layer after concrete is poured, when the supporting and limiting device for adjusting a tunnel secondary lining concrete reinforcement protection layer is used, firstly, the plane position of a primary support is rechecked after the primary support sprayed concrete is applied to a tunnel, the position where the point of the primary support is over 10cm is marked, two expansion bolt holes corresponding to the fixing holes 140 are drilled on the marked point position of the inner wall of the tunnel by using an electric drill, the fixing holes 140 of the fixing plate 100 are aligned with the expansion bolt holes, bolts are inserted and screwed down for fixing, then, one end of the connecting pipe 120 far from the positioning groove 150 is inserted into the fixing pipe 110 in a sliding manner, so that the cross-shaped positioning groove 150 at one end of the connecting pipe 120 far from the fixing pipe 110 is clamped and fixed with one transverse reinforcement, and finely adjusting the connecting pipe 120 to move along the fixing pipe 110, so that the positioning hole 170 formed on the fixing pipe 110 is aligned with one limiting hole 160 on the connecting pipe 120, at this time, the limiting bolt 130 sequentially passes through the positioning hole 170 and the limiting hole 160 and is fixed with the fixing pipe 110 and the connecting pipe 120 through threads, thereby forming a stable supporting and fixing structure between the inner wall of the tunnel and the intersection of one transverse steel bar and one longitudinal steel bar of the steel bar net by using the fixing plate 100, the fixing pipe 110 and the connecting pipe 120, then laying a water stop belt, and pouring concrete in place by using a two-lining trolley after binding the steel bars, thereby solving the problem that the conventional cement cushion block has smaller size and cannot limit the steel bar protective layer in a qualified range, effectively eliminating the deformation influence of the steel bars at the arc section of the side wall caused by self weight in the binding of the two-lining steel bars, and simultaneously locking the intersection of the longitudinal steel bar and the transverse, labor cost and mechanical shift times are reduced, construction period progress is accelerated, and operation cost is reduced.
Example 2
As shown in fig. 5 and fig. 6, the present embodiment provides a supporting and limiting device for adjusting a tunnel secondary lining concrete reinforcing steel bar protection layer, which has substantially the same structure as the supporting and limiting device for adjusting a tunnel secondary lining concrete reinforcing steel bar protection layer provided in embodiment 1, except that in this embodiment, the supporting and limiting device for adjusting a tunnel secondary lining concrete reinforcing steel bar protection layer further includes a positioning plate 270 and 4 connecting bolts 290, the positioning plate 270 is provided with positioning holes 280 for being clamped with four bumps 190, the side walls of the four bumps 190 are respectively provided with first bolt holes 300, the side walls of the positioning plate 270 are respectively provided with four second bolt holes 310 corresponding to the first bolt holes 300, and each connecting bolt 290 is used for respectively sequentially passing through one first bolt hole 300 and one second bolt hole 310 and connecting the positioning plate 270 and one bump 190; a pressure sensor 400 is provided in the positioning groove 150.
The supporting and limiting device for adjusting the tunnel secondary lining concrete reinforcement protection layer provided by this embodiment further includes a positioning plate 270 having 4 positioning holes 280, when a user uses the cross-shaped positioning slot 150 at one end of the connecting pipe 120 far from the fixing pipe 110 to be clamped and fixed with one transverse reinforcement and the longitudinal reinforcement of the reinforcement mesh, and fixes the limiting bolt 130 to the fixing pipe 110 and the connecting pipe 120 by passing through the positioning hole 170 and the limiting hole 160 in sequence, one end of the four protrusions 190 far from the fixing pipe 110 can be clamped and connected in the 4 positioning holes 280 on the positioning plate 270, so that the positioning plate 270 and the positioning slot 150 at the end of the fixing pipe 110 are used to cooperate and fix one transverse reinforcement and the longitudinal reinforcement of the reinforcement mesh, thereby effectively improving the supporting and limiting capability of adjusting the tunnel secondary lining concrete reinforcement protection layer, and preventing the transverse reinforcement and the longitudinal reinforcement of the reinforcement mesh from separating from the positioning slot, in addition, the operator can pass 4 connecting bolts 290 through the first bolt hole 300 of one of the positioning plates 190 and the second bolt hole 310 of one of the positioning plates 270 in sequence and thread the positioning plate 270 and the positioning plate 190, so that the positioning plate 270 and the fixing pipe 110 are stably connected and enclose the intersections of the transverse reinforcements and the longitudinal reinforcements of the reinforcing mesh.
In addition, a pressure sensor 400 is arranged in the positioning groove 150, the stress change of the steel bar is monitored in real time by utilizing the characteristic that the pressure change applied to the pressure sensor 400 by the steel bar causes the deformation of the pressure sensor 400, the resistance change is changed, and different current signals are sent, and the deformation collapse risk possibly existing in the steel bar framework is monitored according to the set steel bar stress extreme value.
Example 3
As shown in fig. 7 and 8, the present embodiment provides a supporting and limiting device for adjusting a tunnel secondary lining concrete reinforcing steel bar protection layer, which has substantially the same structure as the supporting and limiting device for adjusting a tunnel secondary lining concrete reinforcing steel bar protection layer provided in embodiment 1, except that in the present embodiment, a sliding groove 200 is provided at an end surface of a connecting pipe 120 far from a fixed pipe 110, two sliding blocks 210 are slidably provided in the sliding groove 200, one end of each of the two sliding blocks 210 respectively extends out of the sliding groove 200 and is connected to a sliding rail 220, each of the sliding rails 220 is slidably provided with two protruding blocks 190 capable of moving along the sliding rail, an extending direction of the sliding groove 200 is parallel to a height direction of the connecting pipe 120, and an extending direction of the sliding rail 220 is; each sliding block 210 is connected with a locking bolt 230 penetrating through the connecting pipe 120, one end of each locking bolt 230 penetrating out of the connecting pipe 120 is connected with a corresponding locking nut 240 through threads, the connecting pipe 120 is provided with a strip-shaped hole 250 communicated with the sliding chute 200, and the sliding block 210 drives the locking bolt 230 to move along the strip-shaped hole 250 when moving along the sliding chute 200; each of the protrusions 190 is threadedly connected with a positioning bolt 260, and the positioning bolt 260 moves along the axial direction thereof to press or stop pressing against the corresponding slide rail 220 when rotating.
The supporting and limiting device for adjusting the tunnel secondary lining concrete reinforcement protection layer provided in this embodiment is provided with a sliding groove 200 at an end surface of the connecting pipe 120 far from the fixing pipe 110, two sliding blocks 210 are slidably disposed in the sliding groove 200, one end of each of the two sliding blocks 210 extends out of the sliding groove 200 and is connected with a sliding rail 220, each sliding rail 220 is connected with two protruding blocks 190 capable of moving along the sliding rail, an operator can move the protruding blocks 190 along the sliding rails 220 and move the sliding blocks 210 along the sliding grooves 200 to adjust the four protruding blocks 190 to move towards directions close to or away from each other, thereby adjusting the size of the cross-shaped positioning groove 150 formed by matching the four protruding blocks 190, so as to adapt to and clamp the transverse reinforcements with different thicknesses in the reinforcement mesh, the longitudinal reinforcement intersection, and ensure that the transverse reinforcements with different thicknesses in the reinforcement mesh and the.
In addition, each sliding block 210 is connected with a locking bolt 230 penetrating through the connecting pipe 120, one end of each locking bolt 230 penetrating through the connecting pipe 120 is connected with a corresponding locking nut 240 through threads, the connecting pipe 120 is provided with a strip-shaped hole 250 communicated with the sliding groove 200, the sliding block 210 drives the locking bolt 230 to move along the strip-shaped hole 250 when moving along the sliding groove 200, so that an operator can conveniently move the sliding block 210 along the sliding groove 200, the sliding rail 220 connected with the sliding block 210 and the position of the bump 190 slidably arranged on the sliding rail 220, then the sliding block 210 and the connecting pipe 120 are locked and fixed by using the locking nut 240, meanwhile, each bump 190 is connected with a positioning bolt 260 through threads, when the positioning bolt 260 rotates, the sliding rail 220 corresponding to the axial movement of the positioning bolt is pressed or stopped to be pressed along the axial direction of the positioning bolt can conveniently rotate the positioning bolt 260 to press the sliding rail 220 after moving the position of the, the size of the positioning slot 150 defined by the four protrusions 190 is ensured to be stable, and the positions of the four protrusions 190 are readjusted after the locking nut 240 and the positioning bolt 260 are loosened as required, so as to adjust the size of the positioning slot 150 defined by the four protrusions 190.
The embodiments described above are some, but not all embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Claims (9)
1. The utility model provides an adjust two lining concrete reinforcing bar protective layer in tunnel support stop device, its characterized in that, its include fixed plate, one end with hollow fixed pipe, the slip of fixed plate connection are inserted and are located fixed pipe is kept away from the connecting pipe and the spacing bolt of fixed plate one end, a plurality of fixed orificess have been seted up on the fixed plate, the connecting pipe is kept away from the one end terminal surface of fixed pipe is equipped with the criss-cross constant head tank, a plurality of spacing holes have been seted up to the connecting pipe outer wall, at least one locating hole has been seted up to the fixed pipe outer wall, the connecting pipe is followed when fixed pipe removed, make spacing bolt passes one in proper order the locating hole and one spacing hole.
2. The supporting and limiting device for adjusting the protective layer of the secondary lining concrete reinforcement of the tunnel according to claim 1, wherein a supporting rod is connected between the fixing plate and the fixing pipe.
3. A supporting and limiting device for adjusting a tunnel secondary lining concrete reinforcement protective layer according to claim 2, wherein an end face of the connecting pipe, which is far away from the fixed pipe, is provided with four convex blocks, and the four convex blocks enclose to form the positioning groove.
4. A supporting and limiting device for adjusting a protective layer of a concrete reinforcement in a secondary lining of a tunnel according to claim 3, wherein an end surface of the connecting pipe away from the fixed pipe is provided with a sliding groove, two sliding blocks are slidably disposed in the sliding groove, one end of each of the two sliding blocks extends out of the sliding groove and is connected with a sliding rail, each sliding rail is connected with two protruding blocks capable of moving along the sliding rail, and an extending direction of the sliding groove is perpendicular to an extending direction of the sliding rail.
5. The support and limit device for adjusting the protective layer of the concrete reinforcement in the secondary lining of the tunnel according to claim 4, wherein each of the sliding blocks is connected with a locking bolt penetrating out of the connecting pipe, one end of each of the locking bolts penetrating out of the connecting pipe is connected with a corresponding locking nut through threads, the connecting pipe is provided with a strip-shaped hole communicated with the sliding groove, and the sliding blocks drive the locking bolts to move along the strip-shaped hole when moving along the sliding groove.
6. The support and limiting device for adjusting the protective layer of the secondary lining concrete steel bar in the tunnel according to claim 4, wherein each of the protrusions is connected with a positioning bolt through a thread, and the positioning bolt is configured to move along the axial direction of the positioning bolt to press or stop pressing the corresponding slide rail when rotating.
7. The supporting and limiting device for the protective layer of the secondary lining concrete reinforcement in the tunnel according to claim 3, further comprising a positioning plate, wherein the positioning plate is provided with a positioning hole clamped with the four bumps.
8. The supporting and limiting device for adjusting the protective layer of the secondary lining concrete reinforcement in the tunnel according to claim 7, further comprising a plurality of connecting bolts, wherein the connecting bolts are used for respectively passing through and connecting the positioning plate and one of the bumps in sequence.
9. The support and limiting device for adjusting the protective layer of the secondary lining concrete steel bar in the tunnel according to claim 1, wherein a pressure sensor is arranged in the positioning groove.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010783158.6A CN111963207B (en) | 2020-08-06 | 2020-08-06 | Support limiting device for adjusting tunnel secondary lining concrete reinforcement protective layer |
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| CN202010783158.6A CN111963207B (en) | 2020-08-06 | 2020-08-06 | Support limiting device for adjusting tunnel secondary lining concrete reinforcement protective layer |
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| CN111963207B CN111963207B (en) | 2023-01-13 |
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| CN113668394A (en) * | 2021-08-16 | 2021-11-19 | 中交路桥建设有限公司 | Quick positioner of cable tower reinforcing bar owner muscle |
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| CN110185469A (en) * | 2019-06-18 | 2019-08-30 | 中铁隆工程集团有限公司 | A kind of tunnel two-lining structure cover to reinforcement control method |
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| CN113090285A (en) * | 2021-04-22 | 2021-07-09 | 中铁一局集团有限公司 | Tunnel secondary lining reinforcing steel bar protective layer control and stress system conversion construction method |
| CN113090285B (en) * | 2021-04-22 | 2022-12-02 | 中铁一局集团有限公司 | Tunnel secondary lining reinforcing steel bar protective layer control and stress system conversion construction method |
| CN113668394A (en) * | 2021-08-16 | 2021-11-19 | 中交路桥建设有限公司 | Quick positioner of cable tower reinforcing bar owner muscle |
| CN113668394B (en) * | 2021-08-16 | 2022-12-27 | 中交路桥建设有限公司 | Quick positioner of cable tower reinforcing bar owner muscle |
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