CN210977512U - Tunnel secondary lining anticreep is empty vertically to move back tubular area mould slip casting rotary device - Google Patents
Tunnel secondary lining anticreep is empty vertically to move back tubular area mould slip casting rotary device Download PDFInfo
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- CN210977512U CN210977512U CN201921960641.6U CN201921960641U CN210977512U CN 210977512 U CN210977512 U CN 210977512U CN 201921960641 U CN201921960641 U CN 201921960641U CN 210977512 U CN210977512 U CN 210977512U
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Abstract
The utility model discloses a tunnel secondary lining anticreep is empty to move back tubular area mould slip casting rotary device longitudinally, relate to two lining hunch portions in the tunnel and take mould slip casting technical field, concrete can solidify along with the extension of time when pouring two linings, firmly stick the slip casting pipe of prefabricating at its vault, the problem that the slip casting pipe can't be extracted outwards when leading to the slip casting to backfill, adopt including rotary mechanism and clamping mechanism, rotary mechanism's rotation portion and clamping mechanism fixed connection, rotary mechanism's rotation portion can drive clamping mechanism rotation when rotating; the rotating mechanism is of a hollow structure, and the grouting pipe can be arranged in the rotating mechanism and the clamping mechanism in a penetrating mode and is clamped by the clamping mechanism. Its reasonable in design, the structure is ingenious, convenient operation, the equipment and the maintenance of being convenient for, it can realize the rotation of slip casting pipe very conveniently, because of its adoption hydraulic control, clamp force and rotatory torsion are all very big, enough satisfy the on-the-spot needs, in addition, such structure can not influence the tight jar of clamp and cause the pipeline winding problem because of rotating yet.
Description
Technical Field
The utility model relates to a two lining hunch portions in tunnel area mould slip casting technical field, in particular to tunnel secondary lining anticreep is empty vertically to move back tubular area mould slip casting rotary device.
Background
The problems of secondary lining void and cavity quality defect of the tunnel are still the common problems of the current secondary lining construction. According to the conventional statistical data of the defect problems of quality detection and inspection in the tunnel engineering construction process and quality detection and acceptance of completion of engineering, the problems of hollowing and cavities of arch parts and arch waists of the two linings are more, the partial problems are more serious, the potential safety hazard of the design structure is caused, the safety influence on the operation safety of railways, highways and municipal roads is greater, and the two linings are always concerned by the railway, highway, municipal road construction units, railway bureaus, public bureaus and total railway quality supervision and management bureaus.
The reasons for the void and cavity at the arch part and the arch waist part of the tunnel secondary lining are as follows: (1) due to poor working performance of concrete such as fluidity, workability and the like, the concrete is not good in fluidity and is not filled locally after being pumped into the arch part template of the two-lined trolley. (2) The phenomenon that the arch concrete continuously sinks to be emptied possibly exists in the vibrating process of the trolley arch formwork attaching vibrator. (3) The tunnel design longitudinal slope tends to make the concrete of the arch part flow from the high end to the low end, and the high end is easily not filled. (4) When the concrete is capped, the factors of pumping pipes, blocking pipes, untimely concrete supply and the like cause the condition that the flowability of the concrete entering the mold is blocked due to the approach of initial setting, and the local part is not filled with the concrete.
Two lining vault area mould RPC pipe radial grouting is the new technique of the domestic railway tunnel construction popularization in recent years. And before concrete is poured, an RPC grouting pipe is arranged on a grouting pipe hole reserved in the center line position of the formwork of the arch part of the trolley, a pipe orifice is cut into a cross-shaped groove and jacked to the waterproof plate and the primary support surface, the outer diameter of the pipe is 36mm, the inner diameter of the pipe is 15mm, and whether the position is filled with concrete or not can be judged by judging whether the RPC pipe orifice overflows the concrete or not when the secondary lining concrete is capped and poured. And (3) completing arch part mould grouting within 3-6h after the vault concrete top sealing grouting is completed, generally longitudinally arranging 4 holes on a 12m long two-lining trolley, taking the adjacent hole as an exhaust hole if the hole is grouted, and replacing the next hole for grouting if the grouting pressure exceeds 1.0MPa or the adjacent hole overflows, until all holes are grouted or overflowed. The slurry with the mold can purchase the finished product of the micro-expansion mixture mortar in the market, and can achieve the same strength of concrete. For details, reference may be made to the utility model patent: CN207297034U, tunnel secondary lining concrete arch top backfill grouting device.
The problems existing in the technical scheme are as follows: (1) generally, a 12m trolley is provided with 4 holes of RPC grouting pipes, the holes are arranged at intervals, and construction experience and radar detection show that the concrete void and the cavity of the arch crown are irregular, the void point is unlikely to be right at the position of the grouting hole, and grouting is unlikely to fill all the voids of the arch part. (2) The grouting pipe hole is not necessarily in spatial communication with the adjacent exhaust pipe hole, and it is only an ideal situation to exhaust the gas in the closed space while grouting, so that the grouting pressure is not necessarily true full. (3) Radar nondestructive testing shows that the grouting process still cannot ensure that the arch part is empty and can be grouted and refilled and full.
In order to solve the above problems, we have developed a new method: and a grouting pipe is arranged on the top of the arch crown along the axial direction of the arch, and the grouting pipe is pulled out while grouting is injected into the grouting pipe during grouting backfilling. However, when the second lining is poured, concrete can be solidified along with the lengthening of time, and a grouting pipe prefabricated on the vault of the second lining is firmly stuck, so that the grouting pipe cannot be pulled out during grouting backfilling.
SUMMERY OF THE UTILITY MODEL
For solving because of the concrete setting glues the problem that leads to unable outside extraction with the slip casting pipe, the utility model discloses a following technical scheme realizes:
a tunnel secondary lining anti-empty-preventing longitudinal pipe withdrawing type belt mold grouting rotating device is characterized by comprising a rotating mechanism and a clamping mechanism, wherein a rotating part of the rotating mechanism is fixedly connected with the clamping mechanism, and the clamping mechanism can be driven to rotate when the rotating part of the rotating mechanism rotates;
the rotating mechanism is of a hollow structure, and the grouting pipe can be arranged in the rotating mechanism and the clamping mechanism in a penetrating mode and is clamped by the clamping mechanism.
Preferably, the rotating mechanism is a swing hydraulic cylinder, an air cylinder or an electric cylinder, and a rotating part of the rotating mechanism can rotate for a certain angle;
a rotating flange is fixedly arranged on a rotating part of the rotating mechanism and is of a hollow annular structure;
the clamping mechanism comprises a clamping fixed block, a guide rod, a movable clamping block and a clamping cylinder;
a fixed block flange is fixedly arranged on one side of the clamping fixed block and is of a hollow annular structure;
the fixed block flange is matched with the rotating flange and fixed with the rotating flange through bolts;
one side of the fixed block flange is fixedly provided with a fixed clamping block which is of a U-shaped structure; two guide rod fixing lugs are fixedly arranged on two sides of the fixed clamping block respectively, and the guide rods are fixedly arranged in the two guide rod fixing lugs in a penetrating manner respectively;
the lower end of the guide rod is fixedly connected with the clamping cylinder;
the guide rod is provided with the movable clamping block in a sliding manner, and the movable clamping block is in a U-shaped structure and can be matched with the fixed clamping block;
the bottom of the movable clamping block is fixedly connected with a piston rod of the clamping cylinder, and the movable clamping block can be driven to move along the guide rod through the extension and contraction of the piston rod of the clamping cylinder.
Preferably, a fixed block flange center hole is formed in the center of the fixed block flange, and the aperture of the fixed block flange center hole is larger than the pipe diameter of the clamped grouting pipe.
Preferably, the centers of the fixed clamping block and the movable clamping block are respectively provided with symmetrical isosceles trapezoid-shaped grooves.
Preferably, the guide rod is of a stepped cylindrical structure with steps at two ends and a polished rod in the middle, external threads are arranged at the bottom of the guide rod, and the bottom of the guide rod is connected with the clamping cylinder through threads;
the top of the guide rod is arranged in the guide rod fixing lug in a penetrating way and is fixedly connected with the guide rod fixing lug through a nut.
Preferably, the rotary mechanism further comprises a base, and the rotary mechanism is fixed on the base.
Preferably, the swing hydraulic cylinder is a hollow swing hydraulic cylinder which rotates by 60 °.
Preferably, the clamping cylinder is a linear hydraulic cylinder, a linear air cylinder or a linear electric cylinder.
After the preferred technical scheme is adopted, the beneficial effects comprise that:
reasonable in design, the structure is ingenious, and is efficient, and stability is good, convenient operation, the equipment and the maintenance of being convenient for, it can realize the rotation of slip casting pipe very conveniently, because of it adopts hydraulic control, clamp force and rotatory torsion are all very big, enough satisfy the on-the-spot needs, in addition, such structure can not influence the tight jar of clamp and cause the pipeline winding problem because of rotating yet.
Drawings
FIG. 1 is a general block diagram of the present invention;
fig. 2 is a perspective view of the clamping mechanism of the present invention;
fig. 3 is a front view of the clamping mechanism of the present invention;
fig. 4 is a left side view of the clamping mechanism of the present invention;
fig. 5 is a top view of the clamping mechanism of the present invention;
fig. 6 is a perspective view of the clamping fixing block of the present invention;
fig. 7 is a front view of the clamping fixing block of the present invention;
fig. 8 is a left side view of the clamping fixing block of the present invention;
FIG. 9 is a schematic view of the tunnel secondary lining anti-stripping longitudinal pipe withdrawing type belt mold grouting rotating device after the grouting pipe is inserted.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described clearly and completely with reference to fig. 1 to 9 of 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. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application. Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.
As shown in fig. 1, the tunnel secondary lining anti-void longitudinal pipe withdrawing type belt mold grouting rotating device comprises a rotating mechanism 10 and a clamping mechanism 11.
The rotating mechanism 10 can be implemented by a rotating hydraulic cylinder, a swinging hydraulic cylinder, a rotating air cylinder or an electric cylinder, and even can be implemented by a slewing reducer. The clamping mechanism 11 may be a clamping module of a manipulator structure or a clamping realized by a hydraulic cylinder, an air cylinder or the like, and in short, the purpose is to clamp the grouting pipe 2.
The rotating part of the rotating mechanism 10 is fixedly connected with the clamping mechanism 11, and the rotating part of the rotating mechanism 10 can drive the clamping mechanism 11 to rotate when rotating. The rotating mechanism 10 is a hollow structure, and the grouting pipe 2 can be inserted into the rotating mechanism 10 and the clamping mechanism 11 and clamped by the clamping mechanism 11.
Specifically, as shown in fig. 1, the rotation mechanism 10 employs a hollow swing hydraulic cylinder that rotates 60 degrees per rotation. The rotating part of the swing hydraulic cylinder is fixedly provided with a rotating flange 100, and the rotating flange 100 is of a hollow annular structure.
As shown in fig. 2 to 8, the clamping mechanism 11 includes a clamping fixing block 110, a guide rod 111, a movable clamping block 112, and a clamping cylinder 113.
Wherein, one side of the clamping fixed block 110 is fixedly provided with a fixed block flange 1100, the fixed block flange 1100 is of a hollow annular structure, and the fixed block flange 1100 is matched with the rotating flange 100 and fixedly connected with the rotating flange 100 through bolts.
As shown in fig. 7, a fixing block flange center hole 1103 is formed at the center of the fixing block flange 1100, and the diameter of the fixing block flange center hole 1103 is larger than the pipe diameter of the clamped grout pipe 2.
As shown in fig. 6 to 8, a fixing block 1101 is fixedly disposed on one side of the fixing block flange 1100, and is U-shaped and protrudes from one side of the fixing block flange 1100. A U-shaped retainer block 1101 is positioned around the retainer block flange center opening 1103.
Two sides of the fixed clamping block 1101 are respectively fixed or integrally provided with a guide rod fixing lug 1102, the left side and the right side of the fixed clamping block are respectively provided with one guide rod fixing lug 1102, and the guide rods 111 are respectively fixedly arranged in the two guide rod fixing lugs 1102 in a penetrating way.
Both ends of the guide rod 111 are provided with steps, the middle part of the guide rod is of a step cylindrical rod body structure of a polished rod, the bottom of the guide rod 111 is provided with external threads, and the bottom of the guide rod 111 is in threaded connection with the clamping cylinder 113. The top of the guide rod 111 is inserted into the guide rod fixing lug 1102 and is fixedly connected with the guide rod fixing lug through a nut.
The polished rod part of the guide rod 111 is slidably provided with a movable clamping block 112, and the movable clamping block 112 is in a U-shaped structure and can be matched with the fixed clamping block 1101. Two ends of the movable clamping block 112 are also respectively provided with a guide rod hole, and the guide rod 111 is arranged in the guide rod hole in a penetrating way.
The bottom of the movable clamping block 112 is fixedly connected with a piston rod thread of a clamping cylinder 113, and the clamping cylinder 113 is a linear hydraulic cylinder, a linear air cylinder or a linear electric cylinder. The movable clamping block 112 can be driven to move along the guide rod 111 by the extension and contraction of the piston rod of the clamping cylinder 113.
The centers of the fixed clamping block 1101 and the movable clamping block 112 are respectively provided with symmetrical isosceles trapezoid-shaped grooves. As shown in fig. 3, after the movable clamping block 112 moves upward to contact the fixed clamping block 1101, the waist-trapezoidal grooves of the movable clamping block and the fixed clamping block can firmly clamp the grouting pipe 2.
In addition, in order to fix the whole rotating mechanism 10 and the clamping mechanism 11 for convenient installation and transportation, as shown in fig. 1, a base 12 is further provided, and the rotating mechanism 10 is fixed on the base 12. It should be noted that the base 12 should be stepped, and the fixed rotary mechanism 10 is installed on the step, so as to prevent the clamping mechanism 11 from interfering with the base 12 during rotation.
During operation, as shown in fig. 9, when the grouting pipe 2 is buried on the top of the two-lining vault in advance and the two-lining concrete is not cured, the tunnel secondary lining anti-hollow longitudinal pipe withdrawing type belt mold grouting rotating device is lifted to the trolley and well fixed in alignment with the grouting pipe, and then the clamping part is arranged on the grouting pipe 2 in a penetrating mode. Then:
1. the piston rod of the clamping cylinder 113 is controlled to extend outwards, and the piston rod drives the movable clamping block 112 to move towards the fixed clamping block 1101, so that the grouting pipe 2 is clamped;
2. after the grouting pipe 2 is clamped, the rotating mechanism 10 is controlled to rotate 60 degrees, and at the moment, the grouting pipe 2 also rotates 60 degrees;
3. controlling the piston rod of the clamping cylinder 113 to contract inwards, and driving the movable clamping block 112 to move towards the opposite direction of the fixed clamping block 1101 by the piston rod, so that the grouting pipe 2 is loosened;
4. controlling the rotating mechanism 10 to rotate reversely by 60 degrees;
5. the steps of 1-4 are repeatedly executed, and the rotation of the grouting pipe 2 can be realized by repeating the steps, so that the grouting pipe 2 is prevented from being fixed due to concrete solidification.
Through foretell device, can realize the rotation of slip casting pipe 2 very conveniently, because of it adopts hydraulic control, clamp force and rotatory torsion are all very big, enough satisfy the on-the-spot needs, in addition, such structure can not influence and press from both sides tight jar 113 and cause the pipeline winding problem because of rotating yet.
Claims (8)
1. The tunnel secondary lining anti-lost longitudinal pipe withdrawing type belt mold grouting rotating device is characterized by comprising a rotating mechanism (10) and a clamping mechanism (11), wherein a rotating part of the rotating mechanism (10) is fixedly connected with the clamping mechanism (11), and the rotating part of the rotating mechanism (10) can drive the clamping mechanism (11) to rotate when rotating;
the rotating mechanism (10) is of a hollow structure, and the grouting pipe (2) can penetrate through the rotating mechanism (10) and the clamping mechanism (11) and is clamped by the clamping mechanism (11).
2. The tunnel secondary lining anti-lost longitudinal pipe withdrawing type belt mold grouting rotating device according to claim 1, characterized in that:
the rotating mechanism (10) is a swing hydraulic cylinder, an air cylinder or an electric cylinder, and a rotating part of the rotating mechanism can rotate for a certain angle;
a rotating flange (100) is fixedly arranged on a rotating part of the rotating mechanism (10), and the rotating flange (100) is of a hollow annular structure;
the clamping mechanism (11) comprises a clamping fixed block (110), a guide rod (111), a movable clamping block (112) and a clamping cylinder (113);
a fixed block flange (1100) is fixedly arranged on one side of the clamping fixed block (110) and is of a hollow annular structure;
the fixed block flange (1100) is matched with the rotating flange (100), and the fixed block flange and the rotating flange are fixed through bolts;
one side of the fixed block flange (1100) is fixedly provided with a fixed clamping block (1101) which is of a U-shaped structure; two sides of the fixed clamping block (1101) are respectively and fixedly provided with a guide rod fixing lug (1102), and the guide rods (111) are respectively arranged and fixed in the two guide rod fixing lugs (1102) in a penetrating way;
the lower end of the guide rod (111) is fixedly connected with the clamping cylinder (113);
the movable clamping block (112) is slidably arranged on the guide rod (111), and the movable clamping block (112) is of a U-shaped structure and can be matched with the fixed clamping block (1101);
the bottom of the movable clamping block (112) is fixedly connected with a piston rod of the clamping cylinder (113), and the movable clamping block (112) can be driven to move along the guide rod (111) through the extension and contraction of the piston rod of the clamping cylinder (113).
3. The tunnel secondary lining anti-lost longitudinal pipe withdrawing type belt mold grouting rotating device according to claim 2, characterized in that:
a fixed block flange center hole (1103) is formed in the center of the fixed block flange (1100), and the aperture of the fixed block flange center hole (1103) is larger than the pipe diameter of the clamped grouting pipe (2).
4. The tunnel secondary lining anti-lost longitudinal pipe withdrawing type belt mold grouting rotating device according to claim 3, characterized in that:
the centers of the fixed clamping block (1101) and the movable clamping block (112) are respectively provided with symmetrical isosceles trapezoid-shaped grooves.
5. The tunnel secondary lining anti-lost longitudinal pipe withdrawing type belt mold grouting rotating device according to claim 4, characterized in that:
the guide rod (111) is of a step cylindrical structure, steps are arranged at two ends of the guide rod, a polished rod is arranged in the middle of the guide rod, external threads are arranged at the bottom of the guide rod (111), and the bottom of the guide rod (111) is connected with the clamping cylinder (113) through threads;
the top of the guide rod (111) penetrates through the guide rod fixing lug (1102) and is fixedly connected with the guide rod fixing lug through a nut.
6. The tunnel secondary lining anti-lost longitudinal pipe withdrawing type belt mold grouting rotating device according to claim 5, characterized in that:
the rotary mechanism is characterized by further comprising a base (12), and the rotary mechanism (10) is fixed on the base (12).
7. The tunnel secondary lining anti-lost longitudinal pipe withdrawing type belt mold grouting rotating device according to claim 2, characterized in that:
the swing hydraulic cylinder is a hollow swing hydraulic cylinder which rotates by 60 degrees.
8. The tunnel secondary lining anti-lost longitudinal pipe withdrawing type belt mold grouting rotating device according to claim 2, characterized in that:
the clamping cylinder (113) is a linear hydraulic cylinder, a linear air cylinder or a linear electric cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921960641.6U CN210977512U (en) | 2019-11-14 | 2019-11-14 | Tunnel secondary lining anticreep is empty vertically to move back tubular area mould slip casting rotary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921960641.6U CN210977512U (en) | 2019-11-14 | 2019-11-14 | Tunnel secondary lining anticreep is empty vertically to move back tubular area mould slip casting rotary device |
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| Publication Number | Publication Date |
|---|---|
| CN210977512U true CN210977512U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921960641.6U Active CN210977512U (en) | 2019-11-14 | 2019-11-14 | Tunnel secondary lining anticreep is empty vertically to move back tubular area mould slip casting rotary device |
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| CN (1) | CN210977512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302685A (en) * | 2020-10-29 | 2021-02-02 | 四川港航建设工程有限公司 | Tunnel lining vault belt mold grouting system and construction method |
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2019
- 2019-11-14 CN CN201921960641.6U patent/CN210977512U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302685A (en) * | 2020-10-29 | 2021-02-02 | 四川港航建设工程有限公司 | Tunnel lining vault belt mold grouting system and construction method |
| CN112302685B (en) * | 2020-10-29 | 2023-02-28 | 四川港航建设工程有限公司 | Tunnel lining vault belt mold grouting system and construction method |
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