CN107460889A - Integral mobile support formwork and its construction method in the construction of underground comprehensive pipe gallery - Google Patents

Abstract

The invention discloses an integral mobile support formwork in the construction of an underground comprehensive pipe gallery and a construction method thereof. The integral mobile support formwork includes an inner formwork and an outer formwork, and the inner formwork consists of a top plate formwork, two inner formwork The wall formwork and the inner bracket are spliced together. The inner formwork of the present invention is hoisted into the pit after being assembled outside the site, which avoids the cumbersome formwork bracket erection operation, and both the inner formwork and the outer formwork are moved and positioned by the walking frame, and then the subsequent mold clamping and reinforcement are carried out. The construction period is shortened, and the construction cost is reduced; the inner formwork of the present invention is supported and reinforced by the inner support, which ensures the overall stability of the inner formwork structure.

Description

Integral mobile support formwork and its construction method in the construction of underground comprehensive pipe gallery

technical field

The invention relates to the field of construction of an underground comprehensive pipe gallery, in particular to an integral mobile support formwork and a construction method used in the construction of an underground comprehensive pipe gallery.

Background technique

With the development of economy, the expansion of urban scale and the continuous improvement of modernization, the urban underground pipe network is becoming larger and denser, and its types are becoming more and more diverse. Compared with the rapid development of the urban underground pipeline network, the management of the urban underground pipeline is lagging behind. It can no longer meet the growing demand of the pipeline network business, and restricts the development of the city to a large extent. At present, Guangxi, Shandong, Sichuan and many other places have launched underground pipe gallery construction projects, and the construction of underground pipe gallery in my country has entered a period of acceleration.

At present, in the construction of underground pipe corridors, the main structure is mostly constructed with square wood and formwork with a steel pipe support system. However, ordinary formwork support has many construction procedures, long installation and dismantling time, high rental cost of steel pipe support, and wooden formwork turnover. It is difficult to guarantee the construction quality in the future.

Contents of the invention

The technical problem to be solved by the present invention is to provide an integral mobile support formwork and its construction method used in the construction of underground comprehensive pipe gallery, which can quickly and conveniently carry out the construction work of the pipe gallery structure, so as to shorten the construction period and save costs.

Technical scheme of the present invention is:

An integral movable support formwork applied in the construction of underground comprehensive utility tunnels, comprising an inner formwork and an outer formwork, the inner formwork comprising a roof formwork, two sets of inner wall formwork and inner supports;

The inner support includes a plurality of vertically arranged vertical bars, a plurality of horizontally arranged horizontal bars connected between adjacent vertical bars, an inner walking frame connected to the bottom ends of the vertical bars, and multiple sets of side support adjusters; The two groups of interior wall formworks all include vertically arranged interior wall waterproof splints, a plurality of interior wall steel secondary beams connected to the inner end surface of the interior wall waterproof splints and arranged in parallel from top to bottom, and arranged inside Multiple internal wall honeycomb steels on the inner side of the wall steel secondary beam and fixedly connected with the internal wall steel secondary beam. The multiple internal wall honeycomb steels are vertically arranged and perpendicular to the internal wall steel secondary beam. The two sets of internal wall formwork The inner end faces of the inner wall waterproof splints are relatively arranged; the roof formwork includes a horizontally arranged top waterproof splint, a plurality of top steel secondary beams connected to the lower end surface of the top waterproof splint and arranged in parallel from left to right, and setting A plurality of horizontal honeycomb steels fixedly connected to the top steel secondary beams below the top steel secondary beams, the multiple horizontal honeycomb steels are arranged horizontally and perpendicular to the multiple top steel secondary beams; The horizontal honeycomb steel is fixedly connected; each set of side brace adjusters includes a horizontal connecting rod that passes through multiple vertical rods and is fixedly connected with multiple vertical rods, and two external threaded rods. Internally threaded holes, the outer ends of the two externally threaded rods are respectively fixedly connected to the inner wall honeycomb steel of the two sets of inner wall formwork, and the inner ends of the two externally threaded rods are respectively screwed and connected to the two ends of the horizontal connecting rod;

The outer formwork includes a vertically arranged exterior wall waterproof splint, a plurality of exterior wall steel secondary beams connected to the outer end surface of the exterior wall waterproof splint and arranged in parallel from top to bottom, and arranged outside the exterior wall steel secondary beam. And a plurality of outer wall honeycomb steels fixedly connected with the outer wall steel secondary beams, and an outer walking frame connected to the bottom end of the outer wall honeycomb steels, the plurality of outer wall honeycomb steels are vertically arranged and connected with the plurality of outer wall steel secondary beams The beams are perpendicular to each other.

There are two inner wall honeycomb steels of the two groups of inner wall formworks; two horizontal honeycomb steels of the roof formwork; two outer wall honeycomb steels of the outer formworks.

The inner support also includes a plurality of reinforcing rods arranged obliquely and connected between adjacent vertical rods.

The tops of the multiple vertical rods of the inner support are all provided with jacking brackets, and each jacking bracket and the corresponding horizontal honeycomb steel are connected by two C-shaped clips and I-shaped beams, and one of the C-shaped clips connects the horizontal honeycomb steel It is fixedly connected with the upper horizontal part of the I-beam, and another C-shaped clamp is fixedly connected with the lower horizontal part of the I-beam.

The inner walking frame includes a supporting frame body, a positioning sleeve slidably connected to the supporting frame body to move up and down, and a walking wheel connected to the bottom of the supporting frame body. The bottom of the vertical bar is sleeved in the positioning sleeve and Connect with positioning sleeve.

The outer side of the outer wall honeycomb steel is connected with a plurality of external formwork reinforcements, each external formwork reinforcement includes an inner sleeve and an outer sleeve that are socketed with each other, and the inner end of the inner sleeve is fixed to the outer wall honeycomb steel Above, the outer end of the inner sleeve is sleeved on the inner ring of the inner end of the outer sleeve and fixedly connected.

Both ends of the roof formwork are respectively connected to the top of the corresponding interior wall formwork through corner connectors.

A construction method for an integral mobile support formwork, specifically comprising the following steps:

(1) Hoist the assembled inner support into the foundation pit, and move it to the corresponding position of the pipe gallery through the inner walking frame;

(2) Adjust the height of the positioning sleeve of the inner walking frame so that the roof formwork at the top of the inner bracket reaches the corresponding height;

(3) Adjust the position of the corner connector, expand the two sets of interior wall formwork to the set size, and then adjust the verticality of the interior wall formwork to place the interior wall formwork at the corresponding position, and finally place the horizontal The connecting rod is connected with the two external threaded rods on the inner wall formwork to complete the reinforcement of the inner wall formwork;

(4) Continuously install and adjust the interior wall formwork of each unit according to steps (1)-(3), and complete the mold closing and reinforcement of the interior wall formwork;

(5) Hoist the outer formwork onto the pre-set guide rails, and the outer walking frame moves the outer formwork to the corresponding position along the corresponding guide rails.

(6) Use the external mold reinforcement to adjust the outer formwork, so that the outer formwork can be adjusted to the corresponding position to keep it vertical and firm;

(7) Continuously install and adjust the outer formwork of each unit in sequence to complete the mold clamping and reinforcement of the outer formwork;

(8) Concrete is poured in the bracket formwork. After the concrete pouring is completed and cured to a removable strength, the outer formwork is removed. First, the outer formwork reinforcement is loosened, and the outer formwork is moved along the guide rail to the next section section to complete the movement of the outer formwork.

(9) Remove the horizontal connecting rod, and adjust the position of the corner connector to shrink the inner wall formwork, and adjust the height of the positioning sleeve of the inner walking frame, so that the height of the roof formwork at the top of the inner support is lowered, and the completion The shrinkage of two sets of interior wall formwork and roof formwork.

(10) The inner walking frame moves the inner formwork to the next segment along the corresponding guide rail to complete the movement of the inner wall formwork.

(11) Repeat the above steps (1)-(10) to complete the construction of the main structure of the underground comprehensive pipe gallery.

Advantages of the present invention:

The inner formwork of the present invention is hoisted into the pit after being assembled outside the site, which avoids the cumbersome formwork bracket erection operation, and both the inner formwork and the outer formwork are moved and positioned by the walking frame, and then the subsequent mold clamping and reinforcement are carried out. The construction period is shortened, and the construction cost is reduced; the inner formwork of the present invention is supported and reinforced by the inner bracket, which ensures the overall stability of the inner formwork structure; the outer formwork of the present invention is provided with an outer mold reinforcement, which ensures that the outer formwork The stability of the fixed frame structure.

Description of drawings

Fig. 1 is a schematic structural view of the inner formwork of the present invention.

Fig. 2 is a structural schematic diagram of the inner end surface of the interior wall formwork of the present invention.

Fig. 3 is an enlarged view of part A in Fig. 1 .

Fig. 4 is an enlarged view of part B in Fig. 1 .

Fig. 5 is an enlarged view of part C in Fig. 1 .

Fig. 6 is a schematic structural view of the outer formwork of the present invention.

Fig. 7 is an enlarged view of part D in Fig. 6 .

Fig. 8 is an enlarged view of part E in Fig. 6 .

Fig. 9 is a schematic structural view of the inner walking frame of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

See Fig. 1-Fig. 9, a kind of overall movable support formwork used in the construction of underground comprehensive pipe gallery, including inner formwork and outer formwork, inner formwork includes roof formwork, two sets of inner wall formwork and The inner bracket, the two ends of the roof formwork are respectively connected to the top of the corresponding inner wall formwork through corner connectors 21;

The inner support includes a plurality of vertically arranged vertical bars 1, a plurality of horizontally arranged horizontal bars 2 connected between adjacent vertical bars 1, and a plurality of obliquely arranged reinforcing bars connected between adjacent vertical bars 1 3. The inner walking frame 4 connected to the bottom of the vertical bar 1, the jacking 5 and multiple sets of side support adjusters arranged at the top of each vertical bar 1;

Both groups of interior wall formworks include a vertically arranged interior wall waterproof splint 6, a plurality of interior wall steel secondary beams 7 connected to the inner end surface of the interior wall waterproof splint 6 and arranged in parallel from top to bottom, and a The two interior wall honeycomb steels 8 inside the wall steel secondary beam 7 and fixedly connected with the interior wall steel secondary beam 7, the two interior wall honeycomb steel 8 are vertically arranged and perpendicular to the interior wall steel secondary beam 7, and the two sets of interior walls The inner end faces of the inner wall waterproof plywood 6 of the formwork are relatively arranged;

The roof formwork includes a top waterproof splint 9 arranged horizontally, a plurality of top steel secondary beams 10 connected to the lower end surface of the top waterproof splint 9 and arranged in parallel from left to right, and a top steel secondary beam 10 arranged below the top steel secondary beam 10 and connected to the top. Two transverse honeycomb steels 11 fixedly connected to the steel secondary beams 10, the two transverse honeycomb steels 11 are horizontally arranged and perpendicular to multiple top steel secondary beams 10, each jacking 5 of the inner support and the corresponding horizontal honeycomb steel 11 are Two C-shaped clamps 12 are connected to the I-beam 13, one of which is the C-shaped clamp 12 that connects the horizontal honeycomb steel 11 to the upper horizontal part of the I-beam 13, and the other C-shaped clamp 12 connects the jacking 5 to the upper horizontal part of the I-beam 13. The lower horizontal portion of the I-beam 13 is fixedly connected;

Each set of side brace adjusters includes a horizontal connecting rod 14 and two externally threaded rods 15 that pass through a plurality of vertical rods 1 and are fixedly connected with the plurality of vertical rods 1, and the two ends of the horizontal connecting rod 14 are provided with internal threads. holes, the outer ends of the two externally threaded rods 15 are respectively fixedly connected to the inner wall honeycomb steel 8 of the two sets of inner wall formwork, and the inner ends of the two externally threaded rods 15 are respectively screwed and connected to the two ends of the horizontal connecting rod 14 ;

The outer formwork includes a vertically arranged exterior wall waterproof splint 16, a plurality of exterior wall steel secondary beams 17 connected to the outer end surface of the exterior wall waterproof splint 16 and arranged in parallel from top to bottom, and external wall steel secondary beams 17. Two outer wall honeycomb steels 18 fixedly connected to the outer wall steel secondary beams 17, an outer walking frame 19 connected to the bottom of the outer wall honeycomb steel 18, and a plurality of outer mold reinforcements 20 connected to the outer side of the outer wall honeycomb steel 18 , two external wall honeycomb steels 18 are vertically arranged and are perpendicular to multiple external wall steel secondary beams 17, each external formwork reinforcement 20 includes an inner sleeve 201 and an outer sleeve 202 that are socketed with each other, and the inner sleeve The inner end of the 201 is fixed on the outer wall honeycomb steel 18, and the outer end of the inner casing 201 is sleeved on the inner ring of the inner end of the outer casing 202 and fixedly connected.

Wherein, the inner walking frame 4 includes a support frame body 41, a positioning sleeve 42 that is slidably connected to the support frame body 41 and can move up and down, and a walking wheel 43 connected to the bottom of the support frame body 41. The bottom of the vertical rod 1 is sleeved on the positioning Inside the sleeve 42 and connected with the positioning sleeve 42, when the positioning sleeve 42 moves up and down, it will drive the roof formwork at the top of the inner support to adjust up and down.

A construction method for an integral mobile support formwork, specifically comprising the following steps:

(1) Hoist the assembled inner support into the foundation pit, and move it to the corresponding position of the pipe gallery through the inner walking frame 4;

(2) Adjust the height of the positioning sleeve 42 of the inner walking frame so that the roof formwork at the top of the inner support reaches the corresponding height;

(3) Adjust the position of the corner connector 21, expand the two sets of interior wall formwork to the set size, and then adjust the verticality of the interior wall formwork to place the interior wall formwork at the corresponding position, and finally place the The horizontal connecting rod 14 is screwed and connected with two external threaded rods 15 on the interior wall formwork to complete the reinforcement of the interior wall formwork;

(4) Continuously install and adjust the interior wall formwork of each unit according to steps (1)-(3), and complete the mold closing and reinforcement of the interior wall formwork;

(5) Hoist the outer formwork onto the pre-set guide rail 23, and the outer walking frame 19 moves the outer formwork to the corresponding position along the corresponding guide rail 22.

(6) Use the outer mold reinforcement 20 to adjust the outer formwork, so that the outer formwork can be adjusted to the corresponding position to keep it vertical and firm;

(7) Continuously install and adjust the outer formwork of each unit in sequence to complete the mold clamping and reinforcement of the outer formwork;

(8) Concrete is poured in the bracket formwork. After the concrete is poured and cured to a removable strength, the outer formwork is removed. First, loosen the outer formwork reinforcement 20 and move the outer formwork along the guide rail 22 to the lower One segment completes the movement of the outer formwork.

(9), remove the horizontal connecting rod 14, and adjust the position of the corner connector 21, so that the inner wall formwork retracts, and adjust the height of the positioning sleeve 42 of the inner walking frame, so that the height of the roof formwork at the top of the inner support Adjust down to complete the retraction of two sets of interior wall formwork and roof formwork.

(10) The inner walking frame 4 moves the inner formwork to the next segment along the corresponding guide rail 22 to complete the movement of the inner wall formwork.

(11) Repeat the above steps (1)-(10) to complete the construction of the main structure of the underground comprehensive pipe gallery.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (8)

1. A kind of 1. integral movable type rack template in construction applied to underground pipe gallery, it is characterised in that：Include inner side Mould bases and outside mould bases, described inner side mould bases include top plate mould bases, two groups of interior wall mould bases and medial cradle；

   Described medial cradle include the more montants being vertically arranged, more it is horizontally disposed and be connected between adjacent montant Cross bar, the inner side walker for being connected to montant bottom and multigroup side stay adjuster；Two groups of described interior wall mould bases include perpendicular The interior wall waterproof clamping plate that directly sets, more be connected to the interior wall steel be arrangeding in parallel on interior wall waterproof clamping plate inner face and from top to bottom Secondary beam and it is arranged at more interior wall honeycomb steel being fixedly connected on the inside of interior wall steel secondary beam and with interior wall steel secondary beam, more interior walls Honeycomb steel is vertically arranged and is mutually perpendicular to interior wall steel secondary beam, the interior wall waterproof clamping plate inner face phase of described two groups of interior wall mould bases To setting；Described top plate mould bases include horizontally disposed top waterproof clamping plate, more be connected to top waterproof clamping plate lower end The top steel secondary beam that be arranged in parallel on face and from left to right and it is arranged at below the steel secondary beam of top and is fixed with top steel secondary beam More horizontal honeycomb steel of connection, more horizontal honeycomb steel are horizontally disposed and are mutually perpendicular to more top steel secondary beams；Described The top of medial cradle montant is fixedly connected with corresponding horizontal honeycomb steel；Every group of side stay adjuster includes one through more Root montant and the horizontal brace rod being fixedly connected with more montants and two external thread rods, being provided at both ends with for horizontal brace rod are interior Screwed hole, the outer ends of two external thread rods are respectively fixedly connected with the interior wall honeycomb steel of two groups of interior wall mould bases, two external screw threads Bar it is inner respectively with the both ends spiral shell of horizontal brace rod and being connected；

   Described outside mould bases include the external wall waterproof clamping plate being vertically arranged, more be connected on external wall waterproof clamping plate outer face And be arranged in parallel from top to bottom exterior wall steel secondary beam, be arranged on the outside of exterior wall steel secondary beam and be fixedly connected with exterior wall steel secondary beam more Root exterior wall honeycomb steel and the outside walker for being connected to exterior wall honeycomb steel bottom, more described exterior wall honeycomb steel are set vertically Put and be mutually perpendicular to more exterior wall steel secondary beams.
2. 2. the integral movable type rack template in a kind of construction applied to underground pipe gallery according to claim 1, its It is characterised by：The interior wall honeycomb steel of two groups of described interior wall mould bases is two；The horizontal honeycomb steel of described top plate mould bases is equal For two；The exterior wall honeycomb steel of described outside mould bases is two.
3. 3. the integral movable type rack template in a kind of construction applied to underground pipe gallery according to claim 1, its It is characterised by：Described medial cradle also includes the more bracing pieces for being obliquely installed and being connected between adjacent montant.
4. 4. the integral movable type rack template in a kind of construction applied to underground pipe gallery according to claim 1, its It is characterised by：More montant tops of described medial cradle are provided with jacking, each jacking and corresponding horizontal honeycomb steel It is attached by two C-type clamps and I-beam, one of C-type clamp enters the upper horizontal part of horizontal honeycomb steel and I-beam Row is fixedly connected, and the lower horizontal part of jacking and I-beam is fixedly connected by another C-type clamp.
5. 5. the integral movable type rack template in a kind of construction applied to underground pipe gallery according to claim 1, its It is characterised by：Described inner side walker includes supporting frame, is slidably connected to positioning moving up and down on supporting frame Sleeve pipe and the road wheel for being connected to supporting frame bottom, the bottom of described montant is set in locating sleeve and and locating sleeve Connection.
6. 6. the integral movable type rack template in a kind of construction applied to underground pipe gallery according to claim 5, its It is characterised by：Multiple external mold reinforcing devices are connected with the outside of described exterior wall honeycomb steel, each external mold reinforcing device includes phase The inner sleeve and outer tube being mutually socketed, the inner of inner sleeve are fixed on exterior wall honeycomb steel, and the outer end of inner sleeve is set in outside The inner ring of sleeve pipe inner end is simultaneously fixedly connected.
7. 7. the integral movable type rack template in a kind of construction applied to underground pipe gallery according to claim 6, its It is characterised by：Top of the both ends of described top plate mould bases respectively with corresponding interior wall mould bases is attached by corner connector.
8. A kind of 8. construction method of integral movable type rack template according to claim 7, it is characterised in that：Specifically include There are following steps：

   （1）, assembled good medial cradle is lifted into foundation ditch, and position corresponding to piping lane is moved to by inner side walker；

   （2）, regulation inner side walker locating sleeve height, the top plate mould bases on medial cradle top is reached corresponding height；

   （3）, regulation corner connector position, extend out two groups of interior wall mould bases to being sized, then adjust the vertical of interior wall mould bases Degree, after interior wall mould bases is placed in corresponding position, finally by two external thread rod spiral shells on horizontal brace rod and interior wall mould bases and Connection, complete the reinforcing of interior wall mould bases；

   （4）, by step（1）-（3）Continuously install successively and adjust the interior wall mould bases of each unit, complete interior wall mould bases matched moulds with Reinforce；

   （5）, lifting outside mould bases on the guide rail pre-set, outside walker moves outside mould bases along corresponding guide rail To corresponding position；

   （6）, using external mold reinforcing device adjust outside mould bases, make outside mould bases regulation to relevant position keep it is vertical and reinforce tightly It is real；

   （7）, the outside mould bases continuously installing successively and adjust each unit, complete matched moulds and the reinforcing of outside mould bases；

   （8）, in rack template casting concrete, after treating that concreting is completed and conserves detachable intensity, start Outside mould bases is removed, unclamps external mold reinforcing device first, outside mould bases is moved to next section along guide rail, completes outside mould bases Movement；

   （9）, horizontal brace rod removed, and adjust the position of corner connector, inside contract interior wall mould bases, and adjust inner side and walk The height of frame locating sleeve, the top plate mould bases on medial cradle top is highly lowered, complete two groups of interior wall mould bases and top plate mould bases Inside contract；

   （10）, inner side walker along corresponding guide rail move inner side mould bases arrive next section, completion interior wall mould bases movement；

   （11）, repeat the above steps（1）-（10）Complete the construction of underground pipe gallery agent structure.