CN210564565U

CN210564565U - Self-adaptive lining end template

Info

Publication number: CN210564565U
Application number: CN201921384595.XU
Authority: CN
Inventors: 王元清; 郑心铭; 张玉贵; 李勇; 骆云超; 邹福林; 吕虎; 王嵽显; 索继生; 田凤学
Original assignee: Fifth Engineering Co Ltd of China Railway 11th Bureau Group Co Ltd; China Railway 11th Bureau Group Hanjiang Heavy Industry Co Ltd; Zhengzhou New Dafang Heavy Industries and Technology Co Ltd
Current assignee: Fifth Engineering Co Ltd of China Railway 11th Bureau Group Co Ltd; China Railway 11th Bureau Group Hanjiang Heavy Industry Co Ltd; Zhengzhou New Dafang Heavy Industries and Technology Co Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-05-19
Anticipated expiration: 2029-08-23

Abstract

The utility model discloses a self-adaptation lining cutting end template, including lower extreme steel form and upper end template, be provided with a plurality of articulated journal stirrup down at the outside interval of lower extreme steel form, the outside interval of upper end template is provided with a plurality of articulated journal stirrup on articulated journal stirrup articulated respectively under corresponding, the lower extreme steel form includes vertical section and the tight section of second clamp from vertical section upper end axial outside extension, the outside at vertical section is fixed to articulated journal stirrup down, the upper end template includes lower closing plate and can be relative lower closing plate radial sliding's upper closing plate under elevating gear's drive, it fixes on lower closing plate to go up articulated journal stirrup, be provided with the gasbag in the top of upper closing plate, the lower extreme of articulated journal stirrup has downwardly extending to the articulated portion of crossing vertical section down, a vertical hinge hole of arranging is seted up on this articulated portion. The utility model discloses the thickness range that is suitable for the lining cutting is wider, and can remain throughout and bury the position of waterstop between two parties, can effectively prevent to leak thick liquid and explode the mould.

Description

Self-adaptive lining end template

Technical Field

The utility model belongs to the tunnel engineering field, concretely relates to self-adaptation lining cutting end template.

Background

Lining refers to a permanent supporting structure built by reinforced concrete and other materials along the periphery of a tunnel body in order to prevent surrounding rocks from deforming or collapsing. Referring to fig. 1, a conventional lining end formwork includes a lower end steel formwork a, an upper end steel formwork B, and a wood formwork G, a plurality of lower hinged support lugs C are arranged at one side of the lower end steel template A at intervals, the lower ends of the lower hinged support lugs C extend downwards to cross over the lower end steel template A to form hinged sections, the lower end steel template A is hinged on the fixing plate through the hinged sections of the lower hinged support lugs C, a plurality of upper hinged support lugs D are arranged on the same side of the upper end steel template B at intervals, the upper end steel template B is hinged to the outer side of a lower hinged support lug C of the lower end steel template A through the upper hinged support lugs D, the wood template G is arranged between the clamping sections of the back-buried water stop and the upper end steel template B and clings to the outer side of the upper end steel template B, the middle buried water stop is located between the clamping sections of the lower end steel template A and the upper end steel template B, and the back-buried water stop is located between the waterproof plate and the wood template G. The existing lining end template has the following defects: (1) the position of the lower steel template A cannot be adjusted, so that the buried water stop belt is not centered when the lining thickness changes; (2) due to the fact that the buried water stop and the back-attached water stop have concave-convex stripes, the lower end steel template A and the upper end steel template B cannot be effectively attached to the buried water stop and the wood template G cannot be effectively attached to the back-attached water stop, and slurry leakage is caused; (3) the back-attached water stop strip has large concave-convex stripes and cannot be effectively combined with the wooden template, so that the wooden template is difficult to partially reinforce and concrete pouring is easy to run out to explode the template; (4) large gaps exist among the wood templates, and slurry is easy to leak; (5) the steel template and the wooden template are not transparent, and the concrete pouring condition cannot be effectively observed.

Disclosure of Invention

Bury the waterstop between the two parties for solving, leak thick liquid, the wooden template consolidates the technical problem that has great gap between difficulty, the wooden template, the utility model provides a bury the waterstop position in can adjusting to avoid leaking the thick liquid in self-adaptation lining cutting end template.

Therefore, the utility model discloses the technical scheme who adopts does: a self-adaptive lining end template comprises a lower end steel template and an upper end template which are both in arc structures, a plurality of lower hinged lugs are arranged at intervals on the outer side of the lower end steel template, a plurality of upper hinged lugs which are respectively hinged with the corresponding lower hinged lugs are arranged at intervals on the outer side of the upper end template, the lower steel moulding plate comprises a vertical section and a second clamping section axially and outwardly extending from the upper end of the vertical section, the lower hinge support lug is fixed on the outer side of the vertical section, the upper end template comprises a lower sealing plate and an upper sealing plate which can slide relative to the lower sealing plate in the radial direction under the driving of the lifting device, the upper hinge support lug is fixed on the lower sealing plate, an air bag is arranged above the upper sealing plate, the lower end of the lower hinged support lug is provided with a hinged part which extends downwards to cross the vertical section, and a row of vertically arranged hinged holes are formed in the hinged part.

Preferably, the lower sealing plate comprises a first clamping section extending axially and a first sliding fit section extending radially from the inner end of the first clamping section, the upper hinge support lug is fixed above the first clamping section, the upper sealing plate comprises a second sliding fit section in sliding fit with the first sliding fit section and a supporting section extending axially outwards from the upper end of the second sliding fit section, and the lifting device is arranged between the first clamping section and the supporting section to drive the supporting section to be close to or far away from the first clamping section. By adopting the structure, the lower sealing plate and the upper sealing plate are stable and reliable in structure and are matched with the lifting device tightly.

Preferably, rubber pads are respectively arranged on the opposite sides of the second clamping section of the lower end steel template and the first clamping section of the upper end template. By adopting the structure, the rubber cushion block has elasticity and can be tightly attached to the buried water stop belt to prevent slurry leakage.

Preferably, a plurality of observation windows are provided at intervals at an upper end of the upper sealing plate. By adopting the structure, the concrete pouring condition can be observed conveniently.

Preferably, the observation window is made of glass fiber reinforced plastic material. By adopting the structure, the observation window has stable performance, and can bear tensile stress and bending, compression and shearing stress.

The utility model has the advantages that: 1. the position of the lower end steel template is adjustable, the upper end template can stretch out and draw back, the thickness range suitable for lining is wider, and the middle position of the buried water stop can be always kept; 2. an air bag is arranged above the upper sealing plate, and can be tightly attached to the back-attached water stop belt, so that slurry leakage and mold explosion during concrete pouring can be effectively prevented; 3. compared with the existing wood formwork, the reinforcing difficulty is greatly reduced.

Drawings

FIG. 1 is a schematic structural view of a conventional lining end form;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic structural diagram of the present invention (except for the rubber cushion block);

fig. 4 is a right side view of fig. 2 (except for the bladder and rubber pads).

Detailed Description

The invention will be further described by way of examples with reference to the accompanying drawings:

as shown in fig. 2 to 4, a self-adaptive lining end formwork mainly comprises a lower end steel formwork 1, an upper end formwork 2, a lifting device 3 and an air bag 4, wherein the lower end steel formwork 1 and the upper end formwork 2 are both in an arc structure suitable for a tunnel, a plurality of lower hinged lugs 101 are arranged at intervals on the outer side of the lower end steel formwork 1, a plurality of upper hinged lugs 201 which are respectively hinged with the corresponding lower hinged lugs 101 are arranged at intervals on the outer side of the upper end formwork 2, the lower end steel formwork 1 comprises a vertical section 102 and a second clamping section 103 which axially extends outwards from the upper end of the vertical section 102, the lower hinged lugs 101 are fixed on the outer side of the vertical section 102, the upper end formwork 2 comprises a lower sealing plate 202 and an upper sealing plate 203 which can radially slide relative to the lower sealing plate 202 under the driving of the lifting device 3, the upper hinged lugs 201 are fixed on the lower sealing plate 202, the air bag 4 is arranged above the upper sealing plate 203, after 4 aerifys, can closely laminate with the back of the body waterstop, avoid leaking thick liquid, and compare with the plank sheathing, the reinforcement difficulty has been avoided, the problem of easy running position, the lower extreme of lower articulated journal stirrup 101 has downward extension to the articulated portion 101b of crossing vertical section 102, set up the hinge hole 101a of a vertical row of arranging on this articulated portion 101b, hinge hole 101a interval evenly distributed is on articulated portion 101b, can radially adjust the mounted position when making installation lower extreme steel form 1, thereby bury the position of formula waterstop in the adjustment.

As shown in fig. 2 to 4, the lower sealing plate 202 includes a first clamping section 202a extending axially and a first sliding fit section 202b extending radially from an inner end of the first clamping section 202a, the upper hinge lug 201 is fixed above the first clamping section 202a, the upper sealing plate 203 includes a second sliding fit section 203b sliding fit with the first sliding fit section 202b and a support section 203a extending axially outward from an upper end of the second sliding fit section 203b, and the lifting device 3 is disposed between the first clamping section 202a and the support section 203a to drive the support section 203a to approach or separate from the first clamping section 202a, so as to achieve the extension and retraction of the upper end formwork 2.

As shown in fig. 2 to 4, rubber blocks 5 are respectively provided at opposite sides of the second clamping section 103 of the lower end iron mold plate 1 and the first clamping section 202a of the upper end mold plate 2. The rubber cushion block 5 and the buried water stop belt can be attached to be more compact.

As shown in fig. 2 to 4, a plurality of observation windows 204 are provided at intervals at the upper end of the upper sealing plate 203, and the observation windows 204 may be provided at corresponding positions of the first sliding-fit section 202b and the second sliding-fit section 203 b. The observation window 204 is made of a glass fiber reinforced plastic material.

The utility model discloses during the use, at first, install lower extreme steel form 1 in the suitable position of fixed plate through the hinge hole 101a is articulated, upset lower extreme steel form 1 makes vertical section 102 and the tight section 103 of second clamp be radial and axial extension respectively, bury the formula waterstop in the installation, then upset upper end template 2, bury formula waterstop in making lower extreme steel form 1 and upper end template 2's rubber cushion 5 press from both sides tightly, start elevating gear 3, extension upper end template 2 is to suitable length, inflate gasbag 4 at last, make gasbag 4 closely laminate with the waterstop of pasting on the back, the waterstop of pasting on the back closely laminates with the waterproof board.

Claims

1. The utility model provides a self-adaptation lining cutting end template, is including lower extreme steel form (1) and upper end template (2) that all are arc structure the outside interval of lower extreme steel form (1) is provided with a plurality of articulated journal stirrup (101) down the outside interval of upper end template (2) is provided with a plurality of articulated journal stirrup (201) on articulated journal stirrup (101) articulated respectively with corresponding down, lower extreme steel form (1) presss from both sides tight section (103) including vertical section (102) and from vertical section (102) upper end axial outside extension's second, the outside at vertical section (102) is fixed in articulated journal stirrup (101) down, its characterized in that: the upper end template (2) comprises a lower sealing plate (202) and an upper sealing plate (203) which can slide radially relative to the lower sealing plate (202) under the driving of a lifting device (3), an upper hinged support lug (201) is fixed on the lower sealing plate (202), an air bag (4) is arranged above the upper sealing plate (203), the lower end of the lower hinged support lug (101) is provided with a hinged part (101b) extending downwards to cross over the vertical section (102), and a row of vertically arranged hinged holes (101a) are formed in the hinged part (101 b).

2. The adaptive lining end form of claim 1, wherein: the lower sealing plate (202) comprises a first clamping section (202a) extending axially and a first sliding fit section (202b) extending radially from the inner end of the first clamping section (202a), the upper hinge lug (201) is fixed above the first clamping section (202a), the upper sealing plate (203) comprises a second sliding fit section (203b) in sliding fit with the first sliding fit section (202b) and a supporting section (203a) extending axially outwards from the upper end of the second sliding fit section (203b), and the lifting device (3) is arranged between the first clamping section (202a) and the supporting section (203a) to drive the supporting section (203a) to be close to or far away from the first clamping section (202 a).

3. The adaptive lining end form of claim 1, wherein: and rubber cushion blocks (5) are respectively arranged on the opposite sides of the second clamping section (103) of the lower end steel template (1) and the first clamping section (202a) of the upper end template (2).

4. The adaptive lining end form of claim 1, wherein: a plurality of observation windows (204) are arranged at the upper end of the upper sealing plate (203) at intervals.

5. The adaptive lining end form of claim 4, wherein: the observation window (204) is made of glass fiber reinforced plastic material.