CN213392194U

CN213392194U - Tunnel lining vault area mould slip casting system

Info

Publication number: CN213392194U
Application number: CN202022456473.6U
Authority: CN
Inventors: 杨帆; 倪西海; 张颖; 杨柳; 黎海波
Original assignee: Sichuan Ganghang Construction Engineering Co ltd
Current assignee: Sichuan Ganghang Construction Engineering Co ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-06-08
Anticipated expiration: 2030-10-29

Abstract

The utility model discloses a tunnel lining vault area mould slip casting system belongs to tunnel construction technical field. The utility model comprises a trolley steel die and an end template arranged at the end part of the trolley steel die, wherein the trolley steel die is provided with at least one row of grouting holes and pouring openings, and threaded pipe fixing devices are arranged in the grouting holes; the screwed pipe fixer comprises a screwed sleeve and a bidirectional fixing flange, the screwed sleeve is matched in the grouting hole, and the bidirectional fixing flange is arranged in the screwed sleeve; the end template comprises an upper end template, a lower end template and a fixed connecting rod, wherein the lower end template is installed on the end face of the trolley steel mold, the upper end template is connected to the fixed connecting rod, the lower end template is fixed on the fixed connecting rod, and a middle-buried water stop is arranged between the upper end template and the lower end template. The utility model discloses a slip casting pipe carries out the slip casting to lining cutting goaf and fills, strengthens the closely knit nature of filling, ensures the requirement of tunnel vault slip casting.

Description

Tunnel lining vault area mould slip casting system

Technical Field

The utility model belongs to the technical field of the tunnel construction, especially, relate to tunnel lining vault area mould slip casting system.

Background

At present, in tunnel lining construction, due to the special vault crown position, unreasonable arrangement of a sealing hole and a pouring reservation can be caused in the construction, the slump of pumping concrete is large, the pressure control of the pumping concrete is not good, the concrete shrinks, the unevenness of support and other reasons inevitably cause the lining vault crown and the concrete primary building support surface to be not tightly adhered, and the concrete capping of the arch part is easy to generate phenomena such as void and cavity. Due to the defects of the lining, the stress of the lining is uneven, the stress condition of the lining is worsened, the stress state of the lining design is changed, the actual stress of the lining possibly exceeds the design stress range, and the probability of the damage and the leakage of the tunnel lining is increased under the action of external load and the influence of other adverse factors. In practice, the defect of lining leakage can be basically solved by adopting a timely grouting method with a mold, but some defects still exist, mainly because the reserved grouting pipe is not firmly fixed, and the grouting pipe and the exhaust pipe are easy to block, the grouting pressure is higher, but the situation that the density of individual parts is not compact still exists. In addition, due to the fact that surrounding rocks are not flat, the assembled half steel mold and the wood mold baffle cannot be completely closed, and pressure of grouting materials cannot be maintained, in the process of grouting with a mold, when grouting is conducted on the last grouting hole, grouting materials flow out of a gap between the baffle and the waterproof plate, grouting with the mold is finished, a certain hollow hole still exists in the end of the baffle at the moment, when concrete is poured into the front plate and the mold is timely grouted, some concrete and grouting materials enter the hollow hole in the end of the previous plate, and due to the problems of flatness and grouting paths, the hollow hole at the position cannot be completely filled. But the part is positioned near the circumferential construction joint, is the area with the most serious vault lining diseases and is extremely difficult to solve in the later period.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tunnel lining vault area mould slip casting system carries out the slip casting through the slip casting pipe to lining cutting goaf and fills, strengthens the closely knit nature of filling, ensures the requirement of tunnel vault slip casting.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a tunnel lining vault area mould slip casting system, including platform truck steel mould and the end template that sets up in platform truck steel mould tip, have at least one row of injected hole and pouring opening on the platform truck steel mould, install screwed pipe fixer in the injected hole;

the screwed pipe fixer comprises a screwed sleeve and a bidirectional fixing flange, the screwed sleeve is matched in the grouting hole, and the bidirectional fixing flange is arranged in the screwed sleeve;

the end template comprises an upper end template, a lower end template and a fixed connecting rod, wherein the lower end template is installed on the end face of the trolley steel mold, the upper end template is connected to the fixed connecting rod, the lower end template is fixed on the fixed connecting rod, and a middle-buried water stop is arranged between the upper end template and the lower end template.

Furthermore, one end of the threaded sleeve is provided with a wing plate, the other end of the threaded sleeve is provided with a micro sleeve, one end of a flange hole in the bidirectional fixing flange is a flange groove, the wing plate is matched in the flange groove, and the threaded sleeve is communicated with the flange hole.

Furthermore, the threaded pipe fixer comprises a special-shaped positioning flange, the special-shaped positioning flange is provided with a flange screw hole, the bidirectional fixing flange is provided with a flange stud corresponding to the flange screw hole, and the flange hole in the special-shaped positioning flange are threaded holes and are communicated with each other.

Further, the tip of platform truck steel mould has the steel mould side rib, and upper end mould and lower extreme mould are "L" type template, and the board external corner face of "L" type template on the lower extreme mould pastes and leans on the steel mould side rib to install on the steel mould side rib through the screw rod, the tip of another board pastes and leans on in fixed connecting rod, and a board of "L" type template on the upper end mould pastes and leans on in fixed connecting rod, goes up and through fastening bolt connection, and the tip of screw rod and fixed connecting rod links to each other.

Furthermore, the parts of the fastening bolts, which leak out of the side ribs of the lower end die and the steel die, are matched with the fastening bolts.

Further, a backing plate is clamped between the fastening bolt and the steel die side rib.

Furthermore, a grouting pipe is matched in the screwed pipe fixer, penetrates through the grouting hole, the top end of the grouting pipe extends into the lining void area, and the bottom end of the grouting pipe is connected with the connecting pipe.

Furthermore, the lower end of the grouting pipe is connected with the connecting pipe through a sleeve, the top end of the grouting pipe is provided with a grouting pipe groove head, and a groove head screw is arranged on the inner surface of the grouting pipe groove head.

The utility model discloses following beneficial effect has:

(1) the utility model discloses threaded sleeve, miniature sleeve, two-way mounting flange, dysmorphism positioning flange connect closely, can guarantee that the slip casting pipe is fixed firm, reduce slip casting hole department thick liquid seepage flow.

(2) And grouting filling is carried out on the lining goaf through the grouting pipe, so that the filling compactness is enhanced, and the grouting requirement of the tunnel vault is ensured.

(3) The buried water stop is fixed between the upper and lower links of the end mould steel part, so that the half width of the buried water stop is poured in concrete, the half width extends outwards between the template and the steel mould, the possibility that the water stop is buried in concrete is avoided, the damage to the water stop when the concrete on the surface of the water stop is cleaned is avoided, the damage to the integrity of the water stop in the construction process is reduced, and the waterproof effect of a lining construction joint is improved from the side surface.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a tunnel lining vault belt mold grouting system of the utility model;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a schematic structural view of a special-shaped positioning flange;

FIG. 4 is a schematic view of a threaded sleeve configuration;

FIG. 5 is a schematic view of a grouting pipe structure;

FIG. 6 is a schematic view of a hole sealing screw;

FIG. 7 is a schematic view of the head form of FIG. 1;

in the drawings, the components represented by the respective reference numerals are listed below:

1-surrounding rock; 2-primary support; 3-geotextile; 4-waterproof board; 5-lining concrete; 6-lining a void area; 7-last circulation lining; 8-trolley steel mould; 9-grouting pipe; 10-a threaded sleeve; 11-a micro-sleeve; 12-a bidirectional fixed flange; 13-a special-shaped positioning flange; 14-flange studs; 15-fixing the nut; 16-a connecting sleeve; 17-a connecting tube; 20-flange screw holes; 23-a sleeve; 24-wing plate; 25-grouting pipe groove head; 26-slotted head screws; 27-hole sealing screw; 28-hole sealing rod; 29-hole sealing screw head; 30-steel die side ribs; 31-upper end die; 32-lower end die; 33-fixed link; 34-a screw; 35-a backing plate; 36-a fastening bolt; 37-rubber pad; 38-upper end mold horizontal end; 39-lower end mold horizontal end; 40-steel wires; 41-buried water stop belt; 42-pouring openings; 43-grouting holes; 44-flange groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Welding technical requirement between the reinforcing bar, concrete placement main points, plain soil tamp, pile foundation construction quality standard etc, the utility model discloses do not describe again tiredly, the key explanation the utility model discloses the embodiment of structure.

Please refer to fig. 1-7, the utility model discloses a tunnel lining vault belted mould slip casting system, tunnel lining vault belted mould slip casting system of this embodiment is when using, above one circulation lining 7 begins for the complete lining end of structure, reciprocal continuous casting is carried out, the end template is located the lining end of waiting to be under construction, for the region that needs to develop tunnel lining vault belted mould slip casting between the two, from the top down including country rock 1, primary support 2, geotechnological cloth 3, waterproof board 4, lining concrete 5, platform truck steel mould 8, wherein the concrete forms after the pouring from bottom to top, after lining concrete 5 shaping, often can form lining cast off the dead zone 6 between lining concrete 5 and waterproof board 4, later carry out the slip casting to within the lining off the dead zone 6 through the slip casting pipe.

The trolley steel die 8 is provided with at least one row of grouting holes 43 and pouring ports 42, and threaded pipe fixing devices are installed in the grouting holes 43;

wherein the casting opening 42 is used for casting the lining concrete 5.

The grouting into the lining gob 6 requires the extension of the grouting pipe 9 from the grouting hole 43 and the reaching of the position of the lining gob 6.

Specifically, the method comprises the following steps: the screwed pipe fixer comprises a screwed sleeve 10 and a bidirectional fixing flange 12, wherein the screwed sleeve 10 is matched in the grouting hole 43, and the bidirectional fixing flange 12 is arranged in the screwed sleeve 10;

one end of the threaded sleeve 10 is provided with a wing plate 24, the other end of the threaded sleeve is provided with a micro sleeve 11, one end of a flange hole in the bidirectional fixed flange 12 is provided with a flange groove 44, the wing plate 24 is matched in the flange groove 44, and the threaded sleeve 10 is communicated with the flange hole and the axis of the threaded sleeve is collinear.

The threaded pipe fixer comprises a special-shaped positioning flange 13, the special-shaped positioning flange 13 is provided with a flange screw hole 20, the bidirectional fixing flange 12 is provided with a flange stud 14 corresponding to the flange screw hole 20, and a flange hole on the special-shaped positioning flange 13 are both threaded holes and are communicated with each other.

The lower end of the grouting pipe 9 is connected with the connecting pipe 17 through a sleeve 16, the top end of the grouting pipe 9 is provided with a grouting pipe groove head 25, and the inner surface of the grouting pipe groove head 25 is provided with a groove head screw 26.

After the grouting pipe 9 is poured, the hole sealing screw 27 is used for sealing.

After the trolley steel die 8 is in place and before the lining concrete 5 is constructed, an end template is installed, the end part of the trolley steel die 8 is provided with a steel die side rib 30, the end template comprises an upper end die 31, a lower end die 32 and a fixed connecting rod 33, and the vertical ends of the upper end die 31 and the lower end die 32 are fixedly connected with the steel die side rib 30 through the fixed connecting rod 33 and a screw 34.

Specifically, the lower end die 32 is mounted on a steel die side rib 30 provided at the end of the trolley steel die 8.

The upper end die 31 is connected to the fixed connecting rod 33, the lower end die 32 is fixed on the fixed connecting rod 33, and a buried water stop 41 is arranged between the upper end die 31 and the lower end die 32.

The middle-buried water stop band 41 and two horizontal ends of the end mould are further fixed by the steel wire 40, and half width of the middle-buried water stop band 41 is positioned in lining concrete 5 to be poured.

Further, the upper end die 31 and the lower end die 32 are both "L" shaped die plates, one plate external corner surface of the "L" shaped die plate on the lower end die 32 is attached to the steel die side rib 30 and is installed on the steel die side rib 30 through a screw 34, the end of the other plate is attached to the fixed connecting rod 34, one plate of the "L" shaped die plate on the upper end die 31 is attached to the fixed connecting rod 33 and is connected with the fixed connecting rod 33 through a fastening bolt 36, and the screw 34 is connected with the end of the fixed connecting rod 33.

The fastening bolt 36 is fitted to the portion of the fastening bolt 36 that leaks out of the lower end die 32 and the die side rib 30.

The tie plate 35 is interposed between the fastening bolt 36 and the die side rib 30.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The tunnel lining vault belt mold grouting system is characterized by comprising a trolley steel mold (8) and an end template arranged at the end part of the trolley steel mold (8), wherein the trolley steel mold (8) is provided with at least one row of grouting holes (43) and pouring openings (42), threaded pipe fixing devices are arranged in the grouting holes (43),

the screwed pipe fixer comprises a screwed sleeve (10) and a bidirectional fixing flange (12), wherein the screwed sleeve (10) is matched in a grouting hole (43), and the bidirectional fixing flange (12) is arranged in the screwed sleeve (10);

the end template comprises an upper end template (31), a lower end template (32) and a fixed connecting rod (33), wherein the lower end template (32) is installed on the end face of the trolley steel template (8), the upper end template (31) is connected to the fixed connecting rod (33), the lower end template (32) is fixed on the fixed connecting rod (33), and a buried water stop (41) is arranged between the upper end template (31) and the lower end template (32).

2. The tunnel lining vault belt mold grouting system according to claim 1, characterized in that, one end of the screw sleeve (10) has a wing plate (24), the other end is provided with a micro sleeve (11), one end of the flange hole on the bidirectional fixed flange (12) is a flange groove (44), the wing plate (24) is fitted in the flange groove (44), and the screw sleeve (10) and the flange hole are communicated.

3. The grouting system with the mold for the tunnel lining vault according to claim 2, characterized in that the threaded pipe fixer comprises a special-shaped positioning flange (13), the special-shaped positioning flange (13) is provided with a flange screw hole (20), the bidirectional fixing flange (12) is provided with a flange stud (14) corresponding to the flange screw hole (20), and both the flange hole on the special-shaped positioning flange (13) and the flange hole on the special-shaped positioning flange (13) are threaded holes and are communicated with each other.

4. The grouting system for the tunnel lining vault belt mold according to claim 1, characterized in that the end of the trolley steel mold (8) is provided with a steel mold side rib (30), the upper end mold (31) and the lower end mold (32) are both L-shaped templates, one plate external corner face of the L-shaped template on the lower end mold (32) is attached to the steel mold side rib (30) and installed on the steel mold side rib (30) through a screw rod (34), the end of the other plate is attached to a fixed connecting rod (33), one plate of the L-shaped template on the upper end mold (31) is attached to a fixed connecting rod (33) and connected with the fixed connecting rod (33) through a fastening bolt (36), and the screw rod (34) is connected with the end of the fixed connecting rod (33).

5. The tunnel lining vault belt mold grouting system according to claim 4, characterized in that the portions of the fastening bolts (36) that escape the lower end mold (32) and the steel mold side ribs (30) are fitted with fastening bolts (36).

6. The tunnel lining vault belt mold grouting system according to claim 5, characterized in that a tie plate (35) is sandwiched between the fastening bolt (36) and the steel mold side rib (30).

7. The grouting system with mold for tunnel lining arch crown according to claim 1, characterized in that a grouting pipe (9) is fitted in the screw pipe holder, the grouting pipe (9) passes through the grouting hole (43), the top end thereof extends into the lining gob (6), and the bottom end thereof is connected to the connecting pipe (17).

8. The tunnel lining vault belt mold grouting system according to claim 1, characterized in that the lower end of the grouting pipe (9) is connected with the connecting pipe (17) through a sleeve (16), the top end of the grouting pipe (9) is provided with a grouting pipe slot head (25), and the inner surface of the grouting pipe slot head (25) is provided with a slot head screw (26).