CN113047872A - Two lining platform trucks of prevention vault sky - Google Patents
Two lining platform trucks of prevention vault sky Download PDFInfo
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- CN113047872A CN113047872A CN202110254665.5A CN202110254665A CN113047872A CN 113047872 A CN113047872 A CN 113047872A CN 202110254665 A CN202110254665 A CN 202110254665A CN 113047872 A CN113047872 A CN 113047872A
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- 230000002265 prevention Effects 0.000 title abstract description 7
- 238000001514 detection method Methods 0.000 claims abstract description 69
- 230000000694 effects Effects 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 230000005484 gravity Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 15
- 239000011800 void material Substances 0.000 abstract description 14
- 238000010276 construction Methods 0.000 abstract description 5
- 239000004567 concrete Substances 0.000 description 33
- 239000004020 conductor Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 238000009415 formwork Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 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
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model relates to a two lining platform trucks of prevention vault sky relates to road construction's technical field, it includes portal and template, the template activity sets up on the portal, template length direction's both ends all are provided with detection device, detection device includes universal ball, test bar and pressure sensor, universal ball universal rotation connects on the template, the centre of sphere of universal ball is passed in the axle center of test bar, and test bar slides with universal ball and is connected, pressure sensor fixed connection is on the top of test bar. This application can adjust along with the inclination of tunnel, makes the altitude that pressure sensor located higher, reduces the secondary lining and tentatively pours the void volume when finishing, and then has reduced the probability that the void phenomenon appears in the higher one end of tunnel altitude.
Description
Technical Field
The application relates to the field of road construction, in particular to a two-lining trolley for preventing vault emptying.
Background
The secondary lining is the cast concrete or reinforced concrete lining applied on the inner side of the primary support in the tunnel engineering construction. In contrast, secondary lining and primary support refer to inner lining constructed by concrete and other materials under the condition that the tunnel is subjected to primary support, so as to achieve the effects of reinforcing support, optimizing a route waterproof and drainage system, beautifying appearance, conveniently setting facilities such as communication, illumination, monitoring and the like, and adapt to the requirement of modern highway tunnel construction.
At present, the Chinese patent application with the publication number of CN109736848A, published as 2019, 05 and 10, provides a secondary-lining trolley for preventing vault crown from being empty and a construction method, wherein the secondary-lining trolley for preventing vault crown from being empty comprises a secondary-lining trolley main body and a liftable detection device arranged in the middle of the secondary-lining trolley main body; the lifting detection device comprises a detection assembly, a turbine screw lifter and a motor; the detection assembly comprises a sleeve coaxially arranged at the top of a screw of the turbine screw lifter, a first conductor and a second conductor which are respectively and independently arranged at the top of the inner wall of the sleeve and exposed out of the sleeve, and a monitor of which the positive electrode and the negative electrode are respectively and electrically connected with the first conductor and the second conductor; the motor drives the turbine screw lifter to enable the sleeve to slide along the vertical direction to extend or retract the sleeve to the trolley template on the top of the main body of the two-lining trolley; the first conductor and the second conductor are insulated from each other.
When the bushing is used, the bushing extends out of the trolley template at the top of the trolley main body with the two linings, then secondary lining is carried out, when current can be generated between the first electric conductor and the second electric conductor, the fact that the secondary lining is not empty is proved, then the bushing is retracted and poured for a period of time, and then a cavity formed at the bushing is filled.
For the related technologies, the inventor thinks that the tunnel has a phenomenon that one end of the tunnel is high in altitude and the other end of the tunnel is low in altitude (i.e. the tunnel is obliquely arranged), and the phenomenon that the end of the tunnel with the higher altitude is empty is still easy to occur when the above technology is used for detecting whether the concrete is filled.
Disclosure of Invention
In order to reduce the probability of the phenomenon of coming to nothing in the higher one end of tunnel height above sea level, this application provides a two lining platform trucks of prevention vault coming to nothing.
The application provides a two lining platform trucks of prevention vault sky adopts following technical scheme:
the utility model provides a two lining platform trucks of prevention vault sky, includes portal and template, the template activity sets up on the portal, template length direction's both ends all are provided with detection device, detection device includes universal ball, test bar and pressure sensor, universal ball universal rotation is connected on the template, the axle center of test bar passes the centre of sphere of universal ball, just the test bar with universal ball slides and is connected, pressure sensor fixed connection is in the top of test bar.
By adopting the technical scheme, when the tunnel has the phenomenon that one end of the tunnel is high in altitude and the other end of the tunnel is low in altitude, the detection device at the end with higher altitude is selected to detect the saturation of the secondary lining; during detection, the universal ball is rotated to enable the detection rod to be in a vertical state, and the detection rod is slid to enable the pressure sensor to be abutted against the inner wall of the tunnel; when the concrete flows to the pressure sensor, the pressure sensor is electrified under the pressure of the concrete, the concrete is proved to be poured preliminarily, then the detection pipe is withdrawn and poured for a period of time, and the cavity formed at the void part and the sleeve is filled; because the measuring pole is in vertical state all the time when detecting for pressure sensor and tunnel inner wall butt, the altitude at pressure sensor place is higher, and when pressure sensor detected the concrete, the amount of coming to nothing when secondary lining primary pouring finishes reduced, and then has reduced the probability that the phenomenon of coming to nothing appears in the higher one end of tunnel altitude.
Optionally, one end of the universal ball, which is close to the gantry, is fixedly connected with a balancing weight, and the axis of the detection rod penetrates through the center of gravity of the balancing weight.
Through adopting above-mentioned technical scheme, when the phenomenon that one end height above sea level was low appeared in the tunnel, the balancing weight can the rotation of the universal ball of automatic adjustment to adjust the test bar to vertical state through the balancing weight is automatic, reduced constructor's intensity of labour, improved the adjustment accuracy of test bar moreover.
Optionally, can dismantle fixedly connected with casing on the template, the casing includes half upper shell and half lower shell, half upper shell with fixed connection can be dismantled to half lower shell, universal ball rotates to be connected in the casing.
Through adopting above-mentioned technical scheme, because behind the concreting, the outer peripheral face that universal ball is close to the tunnel inner wall can be covered by the concrete, through the setting of casing, is convenient for pull down casing and universal ball from the template, and then the change and the maintenance of the universal ball of being convenient for.
Optionally, the housing further includes an adjusting bolt, and the adjusting bolt penetrates through the lower half shell and then is in threaded connection with the upper half shell.
Through adopting above-mentioned technical scheme, adjusting bolt can be in the same place upper half shell and lower half shell fixed connection, can adjust the elasticity that upper half shell, lower half shell pressed from both sides tight universal ball through adjusting bolt moreover to relative rotation takes place for universal ball and casing, makes the difficult seepage that takes place from between universal ball and the casing of concrete simultaneously.
Optionally, the detection device further includes a limiting mechanism for limiting the sliding of the detection rod, and the limiting mechanism is disposed on the counterweight.
Through adopting above-mentioned technical scheme, after the inner wall butt in pressure sensor and tunnel, use the slip of restriction mechanism restriction test bar, so carrying out secondary lining's in-process, constructor alright need not control the test bar constantly, reduced constructor's intensity of labour.
Optionally, the detection device further comprises a pouring pipe, the detection rod is arranged in a hollow mode, the pouring pipe is fixedly connected to the detection rod, and the pouring pipe is communicated with the detection rod.
Through adopting above-mentioned technical scheme, after secondary lining primary pouring finishes, to pouring intraductal concreting, so the concrete can directly be pour to the position that has the sky, has reduced and has pour the resistance, has improved and has pour efficiency.
Optionally, the limiting mechanism includes a return spring, one end of the return spring is connected with the balancing weight, the other end of the return spring is connected with the detection rod, and under the action of the return spring, the detection rod always tends to slide towards the inner wall of the tunnel.
By adopting the technical scheme, before secondary lining is carried out, the reset spring always drives the detection rod to slide towards the inner wall of the tunnel, so that the pressure sensor can be always abutted against the inner wall of the tunnel; after the secondary lining is finished, the position with the void is continuously poured through the pouring pipe and the detection rod, the detection rod gradually slides towards the direction far away from the inner wall of the tunnel under the pressure action of concrete, in the process, the pouring pipe and the detection rod are continuously poured between the inner wall of the tunnel and the template, and further, a cavity formed at the detection rod is filled; when concrete is poured between the inner wall of the tunnel and the template, the pressure sensor monitors the pressure of the concrete all the time, and the probability of secondary lining void is reduced.
Optionally, the limiting mechanism includes a first limiting block and a second limiting block, the first limiting block is fixedly connected to the detecting rod, the second limiting block is disposed on the counterweight block, the position of the second limiting block is adjustable, and the second limiting block is abutted to the first limiting block and the second limiting block.
By adopting the technical scheme, before secondary lining, the reset spring pushes the detection rod to slide and enables the first limiting block to be abutted against the second limiting block, at the moment, the pressure sensor is abutted against the inner wall of the tunnel, but the pressure born by the pressure sensor is zero, so that the reading of the pressure sensor can be prevented from being influenced by the reset spring, and the sensing precision of the pressure sensor is improved; because the position of second stopper is adjustable, when the angle of tunnel slope is different, the accessible adjusts the position of second stopper and makes pressure sensor contradict with the tunnel inner wall, and the pressure that pressure sensor received is zero simultaneously.
Optionally, the limiting mechanism further includes a third limiting block, the third limiting block is fixedly connected to the counterweight block, the first limiting block can be abutted against the third limiting block, and when the first limiting block is abutted against the third limiting block, the pressure sensor is aligned with the outer peripheral surface of the universal ball.
Through adopting above-mentioned technical scheme, after first stopper and third stopper butt, the measuring lever can't continue to slide towards the direction of keeping away from the tunnel inner wall, and pressure sensor and the outer peripheral face parallel and level of universal ball this moment, pouring the back of finishing, the measuring lever is difficult for appearing with universal ball department and pours the defect, has improved and has pour the quality.
Optionally, a chamfer is formed between the inner circumferential surface of the detection rod and one end surface close to the inner wall of the tunnel.
Through adopting above-mentioned technical scheme, after concrete setting finishes, the drawing of patterns is carried out towards the direction removal of keeping away from the tunnel inner wall to the template, and at the in-process of drawing of patterns, the not easy card of concrete of the inside that the test bar is close to tunnel inner wall one end is died in the test bar, and then has protected test bar and pressure sensor.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through the setting of universal ball for the measuring pole can adjust along with the inclination in tunnel, and then makes the altitude that pressure sensor located higher, reduces the secondary lining and tentatively pours the void volume when finishing, and then has reduced the probability that the void phenomenon appears in the higher one end in tunnel altitude.
2. Through the setting of balancing weight, the balancing weight can the rotation of the universal ball of automatic adjustment to adjust the measuring staff to vertical state through the balancing weight is automatic, reduced constructor's intensity of labour, improved the adjustment precision of measuring staff moreover.
3. Through the setting of pouring the pipe, after secondary lining primary pouring finishes, to pouring intraductal concreting, so the concrete can directly be pour to the position that has the sky, has reduced and has pour the resistance, has improved and has pour efficiency.
4. Through reset spring's setting, the measuring pole need overcome reset spring's elasticity could slide towards the direction of keeping away from the tunnel inner wall, pours the pipe moreover at this in-process and the measuring pole lasts pours between tunnel inner wall and the template, has reduced the probability that the measuring pole department appears taking off the air.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic view of the whole structure of the embodiment of the present application along the axial direction of the tunnel;
FIG. 3 is a schematic cross-sectional view of a portion of an embodiment of the present application, illustrating the connection of a universal ball to a housing;
FIG. 4 is a schematic sectional view of a part of the structure of the embodiment of the present application, aiming at showing the connection relationship between the detection rod and the universal ball;
FIG. 5 is an enlarged schematic view of portion A of FIG. 4;
FIG. 6 is an enlarged schematic view of portion B of FIG. 4;
fig. 7 is an enlarged schematic view of a portion C in fig. 4.
Description of reference numerals: 110. a gantry; 120. a template; 121. a clamping groove; 130. a hydraulic cylinder; 200. a detection device; 210. a universal ball; 220. a detection lever; 221. chamfering; 230. a pressure sensor; 240. a balancing weight; 241. a weight; 242. a sleeve; 251. a first waist-shaped hole; 252. a second waist-shaped hole; 260. pouring a pipe; 300. a housing; 310. an upper half shell; 311. a clamping part; 312. a connecting portion; 313. an upper hemispherical groove; 320. a lower half shell; 321. a ball slot for next shift; 330. adjusting the bolt; 400. a limiting mechanism; 410. a return spring; 420. a guide bar; 430. a first stopper; 440. a second limiting block; 450. a third limiting block; 460. and (5) fixing the bolt.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
The embodiment of the application discloses two lining dollies of prevention vault sky. Referring to fig. 1 and 2, the secondary lining bogie for preventing the vault from being emptied includes a formwork 120 for supporting secondary lining concrete, a gantry 110 for supporting the formwork 120, and a hydraulic cylinder 130 for controlling the movement of the formwork 120. The template 120 is disposed in an arc shape, the template 120 is disposed right above the gantry 110, and an opening of the template 120 faces downward. The cylinder body of the hydraulic cylinder 130 is fixedly coupled to the gantry 110 by bolts, and the piston rod of the hydraulic cylinder 130 is fixedly coupled to the pattern plate 120 by bolts. The hydraulic cylinder 130 is provided with a plurality of hydraulic cylinders 130, and the axis of the hydraulic cylinder 130 is vertically arranged.
Referring to fig. 1 and 2, the template 120 is further provided with two detection devices 200 for detecting whether the secondary lining is completed, the two detection devices 200 are respectively disposed at two axial ends of the template 120, and the detection device 200 is disposed at the uppermost end of the arc surface of the template 120.
Referring to fig. 2 and 3, the detecting device 200 includes a universal ball 210, the universal ball 210 is mounted on the template 120 through a housing 300, and the housing 300 includes an upper half shell 310, a lower half shell 320, and an adjusting bolt 330 connecting the upper half shell 310 and the lower half shell 320. The upper half shell 310 includes a clamping portion 311, a connecting portion 312 is coaxially and integrally formed on the outer peripheral surface of the clamping portion 311, a clamping groove 121 is formed on the outer peripheral surface of the mold plate 120, and the connecting portion 312 of the upper half shell 310 is clamped in the clamping groove 121. Adjusting bolt 330 is threaded through lower half shell 320 and template 120 to connect with connecting portion 312 of upper half shell 310, thereby fixedly connecting upper half shell 310 and lower half shell 320 together and mounting upper half shell 310 and lower half shell 320 on template 120. Upper half shell 310 has upper hemispherical groove 313, lower half shell 320 has lower hemispherical groove, universal ball 210 is embedded in upper hemispherical groove 313 and lower hemispherical groove, and universal ball 210 is connected with housing 300 in a universal rotating manner.
Referring to fig. 2 and 3, the detecting device 200 further includes a detecting rod 220 and a weight block 240, the detecting rod 220 is inserted into the universal ball 210, an axial center of the detecting rod 220 passes through a spherical center of the universal ball 210, and the detecting rod 220 is slidably connected with the universal ball 210 along an axial direction thereof. The weight 240 includes a weight 241 and a sleeve 242, the sleeve 242 is coaxially sleeved outside the detection rod 220, one end of the sleeve 242 is welded on the outer circumferential surface of the universal ball 210, and the other end of the sleeve 242 is connected to the weight 241 through a thread. The weight 241 is disposed in a cylindrical shape, and the axis of the weight 241 is coaxial with the axis of the detection lever 220.
Referring to fig. 4 and 5, the detecting device 200 further includes a pressure sensor 230, the pressure sensor 230 is embedded on the outer circumferential surface of the upper end of the detecting rod 220, and the pressure sensor 230 is fixedly connected to the detecting rod 220 by a screw. After the two lining trolleys are built up, the universal ball 210 rotates under the action of gravity of the balancing weight 240, so that the detection rod 220 keeps vertical, then the detection rod 220 slides upwards, the inner circumferential surface of the pressure sensor 230 and the tunnel is abutted, and the altitude at which the pressure sensor 230 is located is increased.
When the concrete flows to the pressure sensor 230, the pressure sensor 230 is electrified under the pressure of the concrete, the concrete is proved to be poured primarily, then the detection tube is withdrawn and poured for a period of time, and a void formed by the pouring primarily and a cavity formed by the sleeve are filled. Because pressure sensor 230 is located altitude height is higher, when pressure sensor 230 detected the concrete, the amount of coming to nothing when secondary lining primary pouring finishes reduced, and then has reduced the probability that the phenomenon of coming to nothing appears in the higher one end of tunnel altitude.
Referring to fig. 4, a first waist-shaped hole 251 is formed in the outer circumferential surface of the sleeve 242, and the length direction of the waist of the first waist-shaped hole 251 is parallel to the axial direction of the sleeve 242. The detection device 200 further comprises a pouring pipe 260, the detection rod 220 is arranged in a hollow mode, the first waist-shaped hole 251 of the pouring pipe 260 penetrates through the sleeve 242 and then is in threaded connection with the detection rod 220, the pouring pipe 260 is communicated with the detection rod 220, and the detection rod 220 is communicated between the template 120 and the inner wall of the tunnel. When the detecting rod 220 and the universal ball 210 slide relatively, the pouring pipe 260 slides from the first kidney-shaped hole 251.
After the concrete has been initially poured, the concrete is introduced into the pouring tube 260. Because the inside of measuring rod 220 communicates to between template 120 and the tunnel inner wall for the topmost of measuring rod 220 is the void that the primary casting finished forming promptly, so when filling up the void that the primary casting finished forming and the cavity that the sleeve pipe department formed, the flow resistance of concrete just can reduce, has reduced the degree of difficulty of mending the void.
Referring to fig. 5, a chamfer 221 is formed between the inner circumferential surface and the upper end surface of the detection rod 220, and after the concrete is solidified, the piston rod of the hydraulic cylinder 130 is retracted to perform demolding; in the demolding process, the detection rod 220 is not easy to collide with the formed concrete, so that the pressure sensor 230 is protected, and the solidified concrete is protected.
Referring to fig. 4, the limiting mechanism 400 includes a return spring 410 and a guide rod 420, the guide rod 420 is coaxially welded or screwed to the bottom end of the detection rod 220, the guide rod 420 is inserted into the weight 241, and the detection rod 220 is slidably connected to the counterweight 240 through the guide rod 420. The return spring 410 is sleeved on the guide rod 420, one end of the return spring 410 abuts against the detection rod 220, the other end of the return spring 410 abuts against the weight 241, and the return spring 410 is a compression spring in the embodiment of the present application.
Before secondary lining, the return spring 410 drives the detection rod 220 to slide towards the inner wall of the tunnel all the time, so that the pressure sensor 230 can be always abutted against the inner wall of the tunnel, and the detection precision of the pressure sensor 230 is improved; when the pouring pipe 260 is used for pouring concrete, the concrete can gradually push the detection rod 220 to slide downwards under the pressure of the concrete, the compactness of concrete pouring is improved under the action of the return spring 410, and the probability of secondary lining void is reduced.
Referring to fig. 4 and 6, the limiting mechanism 400 further includes a first limiting block 430 and a third limiting block 450, the first limiting block 430 is fixedly connected to the outer peripheral surface of the detecting rod 220 by screws, the third limiting block 450 is fixedly connected to the inner peripheral surface of the sleeve 242 by screws, and the lower end surface of the first limiting block 430 can abut against the upper end surface of the third limiting block 450.
When the first stopper 430 abuts against the upper end surface of the third stopper 450, the upper end surface of the pressure sensor 230 is flush with the outer peripheral surface of the universal ball 210; after pouring is finished, pouring defects are not prone to occurring at the positions of the detection rod 220 and the universal ball 210, and pouring quality is improved.
Referring to fig. 4 and 7, a second waist-shaped hole 252 is further formed in the outer circumferential surface of the sleeve 242, and the length direction of the waist of the second waist-shaped hole 252 is parallel to the axial direction of the sleeve 242. The limiting mechanism 400 further includes a second limiting block 440 and a fixing bolt 460, wherein a threaded portion of the fixing bolt 460 passes through the second slotted hole 252 and then is in threaded connection with the second limiting block 440. When the fixing bolt 460 is screwed on the second stopper 440, the bolt head of the fixing bolt 460 and the second stopper 440 are clamped on the sleeve 242; the second stopper 440 can slide along the axial direction of the sleeve 242 by loosening the fixing bolt 460.
Before secondary lining, the return spring 410 pushes the detection rod 220 to slide, so that the upper end surface of the first limiting block 430 is abutted against the lower end surface of the second limiting block 440. When the upper end surface of the first stopper 430 abuts against the lower end surface of the second stopper 440, the pressure sensor 230 abuts against the inner wall of the tunnel, but the reading of the pressure sensor 230 is zero, so that the reading of the pressure sensor 230 can be prevented from being affected by the return spring 410, and the sensing accuracy of the pressure sensor 230 is improved. And because the setting of fixing bolt 460 for the position of second stopper 440 is adjustable, and when the angle of tunnel slope is different, the accessible is adjusted the position of second stopper 440 and is made pressure sensor 230 contradict with the tunnel inner wall, keeps the pressure that pressure sensor 230 received simultaneously to be zero.
The implementation principle of the two-lining trolley for preventing vault from being empty is as follows:
after the two lining trolleys are built, the universal ball 210 is driven by the balancing weight 240 to rotate, the detection rod 220 is kept vertical, the detection rod 220 slides relative to the universal ball 210 under the action of the reset spring 410, the pressure sensor 230 is abutted against the inner wall of the tunnel, the second limiting block 440 is adjusted, the first limiting block 430 is abutted against the second limiting block 440, the pressure sensor 230 is abutted against the inner wall of the tunnel, and the reading is zero. And then, performing primary pouring of a secondary lining on the inner wall of the tunnel, and when the reading of the pressure sensor 230 is not zero, proving that the primary pouring is finished, and simultaneously, continuously pouring concrete from the interior of the pouring pipe 260 to the inner wall of the tunnel. When concrete is poured from the pouring pipe 260 to the inner wall of the tunnel, the detection rod 220 gradually slides downwards until the first limiting block 430 abuts against the third limiting block 450, and then pouring is continued until the reading of the pressure sensor 230 is the same as the pre-calculated numerical value. Because the measuring rod 220 can be adjusted along with the inclination angle of the tunnel, and then the altitude at which the pressure sensor 230 is located is higher, the void amount when the secondary lining is primarily poured is reduced, and then the probability of the void phenomenon at the higher end of the tunnel altitude is reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A two-lining trolley for preventing vault from being empty is characterized in that; including portal (110) and template (120), template (120) activity sets up on portal (110), template (120) length direction's both ends all are provided with detection device (200), detection device (200) include universal ball (210), check rod (220) and pressure sensor (230), universal ball (210) universal rotation is connected on template (120), the axle center of check rod (220) passes the centre of sphere of universal ball (210), just check rod (220) with universal ball (210) slide and connect, pressure sensor (230) fixed connection be in the top of check rod (220).
2. A two-lined trolley for preventing vault emptying according to claim 1, wherein: one end of the universal ball (210) close to the gantry (110) is fixedly connected with a balancing weight (240), and the axis of the detection rod (220) penetrates through the center of gravity of the balancing weight (240).
3. A two-lined trolley for preventing vault emptying according to claim 2, wherein: can dismantle fixedly connected with casing (300) on template (120), casing (300) include half shell (310) and half shell (320) down, half shell (310) with fixed connection can be dismantled to half shell (320) down, universal ball (210) rotate to be connected in casing (300).
4. A two-lined trolley for preventing vault emptying according to claim 3, wherein: the shell (300) further comprises an adjusting bolt (330), and the adjusting bolt (330) penetrates through the lower half shell (320) and then is in threaded connection with the upper half shell (310).
5. A secondary trolley for preventing vault emptying according to any of claims 2-4, characterized in that: the detection device (200) further comprises a limiting mechanism (400) for limiting the sliding of the detection rod (220), and the limiting mechanism (400) is arranged on the balancing weight (240).
6. A two-lined trolley for preventing vault emptying according to claim 5, wherein: the detection device (200) further comprises a pouring pipe (260), the detection rod (220) is arranged in a hollow mode, the pouring pipe (260) is fixedly connected to the detection rod (220), and the pouring pipe (260) is communicated with the detection rod (220).
7. A two-lined trolley for preventing vault emptying according to claim 5, wherein: limiting mechanism (400) include return spring (410), return spring (410) one end with balancing weight (240) are connected, return spring (410) the other end with detect pole (220) and connect under return spring (410)'s effect, detect pole (220) have the trend of sliding towards the tunnel inner wall all the time.
8. A two-lined trolley for preventing vault emptying according to claim 7, wherein: the limiting mechanism (400) comprises a first limiting block (430) and a second limiting block (440), the first limiting block (430) is fixedly connected to the detection rod (220), the second limiting block (440) is arranged on the balancing weight (240), the position of the second limiting block (440) is adjustable, and the second limiting block (440) and the first limiting block (430) can abut against the second limiting block (440).
9. A two-lined trolley for preventing vault emptying according to claim 7, wherein: the limiting mechanism (400) further comprises a third limiting block (450), the third limiting block (450) is fixedly connected to the balancing weight (240), the first limiting block (430) can be abutted against the third limiting block (450), and when the first limiting block (430) is abutted against the third limiting block (450), the pressure sensor (230) is flush with the outer peripheral surface of the universal ball (210).
10. A two-lined trolley for preventing vault emptying according to claim 6, wherein: a chamfer (221) is arranged between the inner peripheral surface of the detection rod (220) and one end surface close to the inner wall of the tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110254665.5A CN113047872B (en) | 2021-03-09 | 2021-03-09 | Two lining platform trucks of prevention vault sky |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110254665.5A CN113047872B (en) | 2021-03-09 | 2021-03-09 | Two lining platform trucks of prevention vault sky |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113047872A true CN113047872A (en) | 2021-06-29 |
| CN113047872B CN113047872B (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110254665.5A Active CN113047872B (en) | 2021-03-09 | 2021-03-09 | Two lining platform trucks of prevention vault sky |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116517588A (en) * | 2023-04-25 | 2023-08-01 | 广东水电二局股份有限公司 | Construction method for preventing tunnel lining vault from falling out and falling out preventing device thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736848A (en) * | 2019-02-26 | 2019-05-10 | 重庆交通建设(集团)有限责任公司 | Two-lined trolley for preventing vault void and construction method for preventing vault void |
| JP2019073852A (en) * | 2017-10-12 | 2019-05-16 | 前田建設工業株式会社 | Device to prevent joint in tunnel lining from cracking |
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| JP2019073852A (en) * | 2017-10-12 | 2019-05-16 | 前田建設工業株式会社 | Device to prevent joint in tunnel lining from cracking |
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| CN110107318A (en) * | 2019-06-25 | 2019-08-09 | 河北途程隧道装备有限公司 | A kind of vibrating system of tunnel lining trolley |
| CN210768812U (en) * | 2019-08-29 | 2020-06-16 | 湖南五新隧道智能装备股份有限公司 | Tunnel lining concrete pressure detection device |
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| CN116517588A (en) * | 2023-04-25 | 2023-08-01 | 广东水电二局股份有限公司 | Construction method for preventing tunnel lining vault from falling out and falling out preventing device thereof |
| CN116517588B (en) * | 2023-04-25 | 2023-10-13 | 广东水电二局股份有限公司 | Construction method for preventing tunnel lining vault from falling out and falling out preventing device thereof |
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| CN113047872B (en) | 2022-12-13 |
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