CN114606974B - One-time pouring construction method for concrete of wall plate at bottom plate of pipe gallery on counterfort dock wall - Google Patents
One-time pouring construction method for concrete of wall plate at bottom plate of pipe gallery on counterfort dock wall Download PDFInfo
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- CN114606974B CN114606974B CN202210294911.4A CN202210294911A CN114606974B CN 114606974 B CN114606974 B CN 114606974B CN 202210294911 A CN202210294911 A CN 202210294911A CN 114606974 B CN114606974 B CN 114606974B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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Abstract
The invention discloses a one-time pouring construction method for wallboard concrete at a bottom plate of a pipe gallery on a counterfort dock wall, which comprises the following steps of: 1. backfilling a sandy soil foundation; 2. binding structural steel bars; 3. installing a supporting mechanism and a wall inner side template; 4. installing a reinforcement mesh of a bottom plate of the pipe gallery; 5. plugging a template; 6. pouring the concrete of the wallboard structure at the bottom plate of the pipe gallery on the counterfort dock wall at one time; 7. and (4) removing the template and refilling the sand and soil in the abdominal cavity position outside the wallboard structure. According to the method, the concrete construction of the wallboard backfill region at the bottom plate of the pipe gallery on the counterfort type dock wall is carried out in a coordinated and orderly manner through the support of the plurality of support mechanisms, the template of the reserved section at the upper part of the dock wall, the template at the inner side of the wall body, the template of the bottom plate of the pipe gallery, the upper sealing plate and the template at the rest part of the counterfort wall, and the method has the advantages of controllable construction quality, convenience in operation, safety, reliability, economy and reasonability.
Description
Technical Field
The invention belongs to the technical field of concrete pouring of wallboards at pipe gallery bottom plates on counterfort dock walls, and particularly relates to a one-time concrete pouring construction method for a wallboard at a pipe gallery bottom plate on a counterfort dock wall.
Background
In the construction process of the building engineering, in order to achieve the purposes of reducing construction joints, improving impermeability, accelerating construction progress and the like, temporary construction joints are reduced as much as possible during construction planning, a dock wall structure of a dock project is composed of toe boards, counterfort type dock walls and an upper pipe gallery, sand and soil are filled on the outer side of the dock wall structure, a horizontal construction joint between the dock wall and the pipe gallery is arranged at a position which is 87.5cm away from a lower opening of a bottom plate of the pipe gallery according to design files, and concrete is required to be poured on the part of wall and the bottom plate of the pipe gallery at one time. In addition, the wall body inboard faces the sky face higher and closes on and does not have other buildings, and the inboard template end opening is consolidated the degree of difficulty and is great, need fill the structure of other materials to the pipe gallery slab bottom backfill area simultaneously, if want to realize that wall, plate structure concrete once pour and have certain degree of difficulty. Therefore, a construction method which is feasible in technical scheme, low in operation difficulty, controllable in construction quality, safe, reliable, economical and reasonable is needed.
Disclosure of Invention
The invention aims to solve the technical problem that in order to overcome the defects in the prior art, the invention provides the one-time pouring construction method for the wallboard concrete at the bottom plate of the pipe gallery on the counterfort dock wall, which carries out the concrete construction of the wallboard backfill region at the bottom plate of the pipe gallery on the counterfort dock wall by the cooperation of a plurality of supporting mechanisms for supporting, a reserved section template at the upper part of the dock wall, a template at the inner side of the wall, a template of the pipe gallery bottom plate, an upper sealing plate and a template at the rest part of the counterfort wall in order.
In order to solve the technical problems, the invention adopts the technical scheme that: the method for one-time pouring construction of the concrete of the wall plate at the bottom plate of the pipe gallery on the counterfort docking wall comprises a toe plate, a docking wall, a pipe gallery and the counterfort wall, wherein a wall plate structure at the bottom plate of the pipe gallery on the counterfort docking wall is formed by a reserved section at the upper part of the docking wall, the bottom plate of the pipe gallery, a reserved section at the upper part of the docking wall and the wall section at the bottom plate of the pipe gallery, and is characterized by comprising the following steps of:
step one, backfilling a sandy soil foundation: filling a sand foundation backfill section at the lower part of the outer side of the wallboard structure at the bottom plate of the pipe gallery on the counterfort dock wall, and erecting an inner side operation scaffold at the inner side of the wallboard structure at the bottom plate of the pipe gallery on the counterfort dock wall;
step two, binding structural steel bars: binding buttress dock wall structure steel bars and residual buttress wall steel bars in a wallboard structure at a bottom plate of a pipe gallery on the buttress dock wall;
step three, mounting a support mechanism and a wall body inner side template: mounting a supporting mechanism at the abdominal cavity position outside the wallboard structure at the bottom plate of the pipe gallery on the counterfort dock wall;
the supporting mechanism comprises an embedded prefabricated template, two side extraction templates and a lower sealing plate, wherein the embedded prefabricated template is arranged between two adjacent buttress walls and leans against a reserved section at the upper part of the dock wall, the two side extraction templates are respectively and oppositely arranged on the side walls of the two adjacent buttress walls and are respectively abutted against the embedded prefabricated template, the lower sealing plate is used for sealing one end, away from the embedded prefabricated template, of each of the two side extraction templates, a steel backing plate is arranged at the bottom of each side extraction template, the embedded prefabricated templates, the lower sealing plate and the two side extraction templates form a filling cavity, and a wallboard corner backfill layer and a concrete backing layer are filled in the filling cavity;
the outer side of the lower sealing plate is externally supported through a first supporting steel pipe, and a balancing weight is arranged at one end of the first supporting steel pipe, which is far away from the lower sealing plate;
a wall inner side template is arranged on the outer side of the reserved section on the upper part of the dock wall;
step four, installing a pipe gallery bottom plate reinforcing mesh: laying a pipe gallery bottom plate reinforcing mesh at the top of the concrete cushion layer;
step five, template plugging: installing a reserved section template at the upper part of the dock wall on the outer side of the reserved section at the upper part of the dock wall, installing a pipe gallery bottom plate template and an upper sealing plate on the outer side of a pipe gallery bottom plate, installing a rest part template of the buttress wall on the outer side of the rest part of the buttress wall section, and positioning the upper sealing plate right above a lower sealing plate;
sixthly, pouring concrete for the wallboard structure at the bottom plate of the pipe gallery on the counterfort dock wall at one time;
seventhly, removing the template and refilling sand in the abdominal cavity position outside the wallboard structure: removing a template of the reserved section at the upper part of the dock wall, a template of a bottom plate of a pipe gallery, an upper sealing plate and a template of the rest part of the buttress wall after the strength of concrete meets the design requirement;
then the lower sealing plate is dismantled, and the side part is pulled out to draw out the template and the steel backing plate;
and (4) carrying out sand and soil supplement and backfill on partial slumps of the sand and soil in the abdominal cavity positions outside the wallboard structure.
The wall board concrete one-time pouring construction method for the pipe gallery bottom plate on the counterfort dock wall is characterized by comprising the following steps of: the embedded prefabricated template is a U-shaped prefabricated template matched with the dock wall upper reserved section outer side wall and two adjacent buttress walls, a plurality of embedded template steel bar hanging rings stretching into the upper side of the inner duct gallery bottom plate steel bar net are arranged at the top of the U-shaped prefabricated template, and clamping grooves are formed in the outer portions of two side walls of the U-shaped prefabricated template.
The wall board concrete one-time pouring construction method for the pipe gallery bottom plate on the counterfort dock wall is characterized by comprising the following steps of: the side part drawing template comprises a side part template matched with the clamping groove, a plurality of side part enclosing purlins are arranged on the inner sides of the side part templates, side mould pull rings are arranged at one ends, away from the clamping groove, of the side part drawing templates, a plurality of connecting holes used for hoisting the side part drawing templates are formed in the side part enclosing purlins located at the top, and steel padding plate pull holes are formed in the outer sides of the steel padding plates.
The wall board concrete one-time pouring construction method for the pipe gallery bottom plate on the counterfort dock wall is characterized by comprising the following steps of: the lower sealing plate comprises a lower sealing steel plate matched with one end, far away from the clamping groove, of the side portion drawing-out template, and a lower sealing purlin is installed on the inner side surface of the lower sealing steel plate.
The wall board concrete one-time pouring construction method for the pipe gallery bottom plate on the counterfort dock wall is characterized by comprising the following steps of: the upper sealing plate comprises an upper sealing steel plate and an upper sealing purlin arranged on the inner side surface of the upper sealing steel plate, and the height of the upper sealing purlin is higher than that of the upper sealing steel plate.
The wall board concrete one-time pouring construction method for the pipe gallery bottom plate on the counterfort dock wall is characterized in that: the wall body inner side formwork comprises a wall body inner formwork steel plate and a wall body inner formwork enclosing purlin arranged on the inner side face of the wall body inner formwork steel plate, the height of the wall body inner formwork enclosing purlin is higher than that of the wall body inner formwork steel plate, the upper portion of the wall body inner formwork steel plate is connected with the upper enclosing purlin through a pull rod, a pull rod hole is formed in the bottom of the wall body inner formwork steel plate, and a wall body inner formwork lower portion locker penetrates through the pull rod hole to connect the wall body inner formwork steel plate and the counterfort type dock wall structural steel bars.
The wall board concrete one-time pouring construction method for the pipe gallery bottom plate on the counterfort dock wall is characterized by comprising the following steps of: wall body centre form lower part locker is including installing the steel bar support on counterfort formula depressed wall structure reinforcing bar and with steel bar support joint complex stagnant water nut, stagnant water nut middle part be provided with steel bar support joint complex snap ring, be provided with outside locking steel pipe outside the wall body centre form steel sheet, the screw rod that excels in passes outside locking steel pipe and draw bar hole and stretches into in the stagnant water nut with stagnant water nut threaded connection, the screw rod that excels in is located the outer one end of wall body centre form steel sheet and is connected high-strength screw rod and outside locking steel pipe through butterfly lock nut.
The wall board concrete one-time pouring construction method for the pipe gallery bottom plate on the counterfort dock wall is characterized by comprising the following steps of: and an anti-corrosion film is adhered to one side of the U-shaped prefabricated formwork, which faces to the formwork on the inner side of the wall body.
The wall board concrete one-time pouring construction method for the pipe gallery bottom plate on the counterfort dock wall is characterized by comprising the following steps of: the embedded prefabricated formwork and the wall inner side formwork and the side parts of two sides of the same buttress wall are drawn out and supported through a plurality of supporting devices, and each supporting device comprises two formwork cushion blocks and reinforcing steel bars located between the two formwork cushion blocks.
The wall board concrete one-time pouring construction method for the pipe gallery bottom plate on the counterfort dock wall is characterized by comprising the following steps of: the side portion withdrawing template is located at the edge position, the outer side of the side portion withdrawing template is supported through a second supporting steel pipe, the side portion withdrawing template is withdrawn through a chain block, the telescopic end of the chain block is connected with a side mold pull ring, and the fixed end of the chain block is connected with a balancing weight.
Compared with the prior art, the invention has the following advantages:
1. the sand-soil foundation backfill sections are filled at the lower part of the outer side of the wallboard structure at the bottom plate of the pipe gallery on the counterfort dock wall to provide a placing foundation for the support of the plurality of supporting mechanisms, and the plurality of supporting mechanisms support and support the bottom of the outer side of the wallboard structure at the bottom plate of the pipe gallery on the counterfort dock wall, so that the backfill area at the bottom of the pipe gallery plate is firstly backfilled, the requirement on compactness can be met, the purpose of one-time pouring of wall and plate structure concrete is achieved, the layering quantity of the structure concrete is reduced, the risks of wall cracks, leakage and the like are reduced, and the device is convenient to popularize and use.
2. According to the invention, the counterfort dock wall structural steel bars, the counterfort wall residual steel bars and the pipe gallery bottom plate steel bar mesh are arranged in the wall plate structure at the bottom plate of the pipe gallery on the counterfort dock wall, the template of the reserved section at the upper part of the dock wall and the template at the inner side of the wall body are arranged at the outer side of the reserved section at the upper part of the dock wall, the template at the bottom plate of the pipe gallery and the upper sealing plate are arranged at the outer side of the bottom plate of the pipe gallery, and the template at the residual part of the counterfort wall is arranged at the outer side of the residual part of the counterfort wall, so that the aim of pouring the wall and the plate structure concrete at one time is achieved, the construction process is optimized and the construction progress is accelerated while the integral construction quality is ensured.
3. The method has simple steps, the supporting mechanism comprises an embedded prefabricated template which is arranged between two adjacent buttress walls and is back to the reserved section at the upper part of the dock wall, two side extracting templates which are respectively and oppositely arranged on the side walls of the two adjacent buttress walls and are respectively butted with the embedded prefabricated templates, and a lower sealing plate which is used for sealing one end of the two side extracting templates far away from the embedded prefabricated template, a wallboard corner backfill layer and a concrete cushion layer are filled in the filling cavity, a template structure which can be pulled out after the backfill of the pipe gallery slab bottom backfill area and the wallboard concrete pouring construction are utilized, and the mode of combining the embedded template and the recyclable extracting template is adopted, so that the recycling of most templates is realized, the construction cost can be effectively reduced in larger-scale projects, and the method is convenient to popularize and use.
In conclusion, the concrete construction of the wallboard backfill region at the pipe gallery bottom plate on the counterfort type dock wall is carried out in a coordinated and orderly manner through the support of the plurality of support mechanisms, the reserved section template at the upper part of the dock wall, the template at the inner side of the wall body, the template of the pipe gallery bottom plate, the upper sealing plate and the template at the rest part of the counterfort wall, and the concrete construction method has the advantages of controllable construction quality, convenience in operation, safety, reliability, economy and reasonableness and is convenient to popularize and use.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
Fig. 1 is a schematic view of a buttress dock wall structure with a pipe gallery according to the present invention.
Fig. 2 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 1.
Fig. 3 is a schematic diagram of the formwork supporting structure of the pipe gallery bottom plate backfill area on the buttress type dock wall.
Fig. 4 is a top view of fig. 3.
Fig. 5 is a schematic structural diagram of a backfilled pipe gallery bottom plate on the buttress type dock wall.
Fig. 6 is a top view of fig. 5.
Fig. 7 is a schematic view of a wall plate template supporting structure at a bottom plate of a pipe gallery on the buttress dock wall.
Fig. 8 is a top view of fig. 7.
Fig. 9 is a schematic view showing a structure of the side extraction template according to the present invention.
Fig. 10 is a top view of fig. 9.
Fig. 11 is a top view of an embedded prefabricated form of the present invention.
Fig. 12 is a right side view of fig. 11.
Fig. 13 is a schematic view of the side extraction template of the present invention.
Fig. 14 is a top view of fig. 13.
Fig. 15 is a right side view of fig. 13.
FIG. 16 is a schematic structural view of the steel shim plate of the present invention.
Fig. 17 is a schematic structural view of the lower sealing plate of the present invention.
Fig. 18 is a top view of fig. 17.
Fig. 19 is a schematic structural view of the upper sealing plate of the present invention.
Fig. 20 is a right side view of fig. 19.
Fig. 21 is a schematic structural view of the locking device at the lower part of the wall inner mold according to the present invention.
Fig. 22 is a schematic structural view of the wall inner side formwork of the present invention.
Fig. 23 is a left side view of fig. 22.
FIG. 24 is a block flow diagram of a method of the present invention.
Description of the reference numerals:
Detailed Description
As shown in fig. 1 to 24, the wall plate concrete one-time pouring construction method at the tube gallery bottom plate on the counterfort dock wall of the present invention includes a toe plate 29, a dock wall 30, a tube gallery 32 and a counterfort wall 34, wherein a wall plate structure at the tube gallery bottom plate on the counterfort dock wall is composed of a dock wall upper reserved section 31 of the dock wall 30, a tube gallery bottom plate 33 of the tube gallery 32, and counterfort wall sections at the positions of the dock wall upper reserved section 31 and the tube gallery bottom plate 33, and is characterized in that the method includes the following steps:
step one, backfilling a sandy soil foundation: filling a sandy soil foundation backfill section 36 at the lower part outside the wallboard structure at the bottom plate of the pipe gallery on the counterfort dock wall, and erecting an inner operation scaffold 35 at the inner side of the wallboard structure at the bottom plate of the pipe gallery on the counterfort dock wall;
step two, binding structural steel bars: binding buttress dock wall structural steel bars 38 and buttress wall residual steel bars 47 in a wallboard structure at a bottom plate of a pipe gallery on a buttress dock wall;
step three, mounting a supporting mechanism and a wall body inner side template: mounting a supporting mechanism at the abdominal cavity position outside the wallboard structure at the bottom plate of the pipe gallery on the buttress dock wall;
the supporting mechanism comprises an embedded prefabricated template 1 arranged between two adjacent buttress walls 34 and leaning against a reserved section 31 at the upper part of the dock wall, two side extracting templates 2 which are respectively and oppositely arranged on the side walls of the two adjacent buttress walls 34 and are both abutted against the embedded prefabricated template 1, and a lower sealing plate 4 for sealing one end of each of the two side extracting templates 2 far away from the embedded prefabricated template 1, wherein a steel backing plate 3 is arranged at the bottom of each of the side extracting templates 2, the embedded prefabricated template 1, the lower sealing plate 4 and the two side extracting templates 2 enclose a filling cavity, and a wallboard corner backfill layer 45 and a concrete backing layer 46 are filled in the filling cavity;
the outer side of the lower sealing plate 4 is externally supported through a first supporting steel pipe 39, and a balancing weight 40 is arranged at one end, far away from the lower sealing plate 4, of the first supporting steel pipe 39;
a wall inner side template 6 is arranged outside the reserved section 31 on the upper part of the dock wall;
step four, installing a pipe gallery bottom plate reinforcing mesh: laying a pipe gallery floor reinforcing mesh 52 on top of the concrete cushion 46;
step five, template plugging: installing a reserved section template 49 at the upper part of the dock wall on the outer side of the reserved section 31 at the upper part of the dock wall, installing a pipe gallery bottom plate template 48 and an upper seal plate 5 on the outer side of a pipe gallery bottom plate 33, installing a rest part template 50 of the buttress wall on the outer side of the rest part of the buttress wall section, and positioning the upper seal plate 5 right above a lower seal plate 4;
sixthly, pouring concrete for the wallboard structure at the bottom plate of the pipe gallery on the counterfort dock wall at one time;
seventhly, removing the template and refilling sand in the abdominal cavity position outside the wallboard structure: after the concrete strength reaches the design requirement, removing a template 49 of the upper reserved section of the dock wall, a template 48 of a pipe gallery bottom plate, an upper sealing plate 5 and a template 50 of the rest part of the buttress wall;
then the lower sealing plate 4 is dismantled, and the side part is pulled out to draw out the template 2 and the steel backing plate 3;
and (4) performing sand and soil supplement backfilling on partial collapse of the sand and soil in the abdominal cavity position outside the wallboard structure.
It should be noted that, the lower part of the outer side of the wallboard structure at the bottom plate of the pipe gallery on the counterfort dock wall is filled with a sand foundation backfill section to provide a placing foundation for supporting a plurality of supporting mechanisms, and the supporting mechanisms support and support the bottom of the outer side of the wallboard structure at the bottom plate of the pipe gallery on the counterfort dock wall, so that the backfill area at the bottom of the pipe gallery plate is firstly backfilled, the requirement on compactness can be met, the purpose of one-time pouring of concrete of the wall and the plate structure is achieved, the layering quantity of the structural concrete is reduced, and the risks such as cracks and leakage of the wall body are reduced; the external side of the reserved section at the upper part of the docking wall is provided with a reserved section template at the upper part of the docking wall and an internal side template of the wall body, the external side of the pipe gallery bottom plate is provided with a pipe gallery bottom plate template and an upper sealing plate, and the external side of the remaining part of the wall section is provided with a remaining part template of the docking wall, so that the aim of one-time pouring of wall and plate structure concrete is fulfilled, the construction process is optimized while the integral construction quality is ensured, and the construction progress is accelerated; supporting mechanism is including setting up between two adjacent buttress walls and leaning against the interior prefabricated template of dock wall upper portion reservation section, two relative settings respectively on two adjacent buttress wall lateral walls and all take out the template with the lateral part of interior prefabricated template butt, and be used for sealing two lateral parts and take out the lower shrouding that the template kept away from interior prefabricated template one end, it has wallboard corner backfill layer and concrete cushion to fill the cavity, the template structure that can pull out after having utilized piping lane slab back fill district backfill and wallboard concrete placement construction to accomplish, adopt the mode that interior template and circulated template of taking out combined together, the cyclic utilization of most template has been realized, can effectively reduce construction cost in large-scale engineering.
In this embodiment, the embedded prefabricated template 1 is a U-shaped prefabricated template 7 adapted to the outer side wall of the upper reserved section 31 of the dock wall and two adjacent buttress walls 34, a plurality of embedded template steel bar hanging rings 8 extending into the upper side of the steel bar mesh 52 of the bottom plate of the inner pipe gallery are arranged at the top of the U-shaped prefabricated template 7, and clamping grooves 9 are formed in the outer portions of two side walls of the U-shaped prefabricated template 7.
It should be noted that 7 tops of U-shaped prefabricated template are provided with a plurality of template reinforcing bar rings 8 that all stretch into to the upside of inner duct gallery bottom plate mesh reinforcement 52, and after concrete placement, the wallboard structure of pipe gallery bottom plate department on embedded prefabricated template 1 and the counterfort dock wall is built integratively, when taking out other templates, avoids the sinking that the supporting mechanism supported, and the part slumps in the sand and soil in the pipe gallery plate bottom backfill region, nevertheless the slump volume is less, and the periphery is in time backfilled can.
In this embodiment, the side portion is taken out template 2 and is included with draw-in groove 9 complex lateral part template 10, and lateral part template 10 inboard is provided with a plurality of lateral parts and encloses purlin 11, and the lateral part is taken out template 2 and is kept away from the one end of draw-in groove 9 and be provided with side form pull ring 13, and the lateral part that is located the top encloses purlin 11 and has seted up a plurality of connecting holes 12 that are used for hoist and mount the template 2 is taken out to the lateral part, and the outside of steel tie plate 3 is provided with steel tie plate hand-hole 14.
In this embodiment, the lower sealing plate 4 includes a lower sealing steel plate 15 that is matched with one end of the side-drawing template 2 away from the clamping groove 9, and a lower sealing purlin 16 is installed on an inner side surface of the lower sealing steel plate 15.
In this embodiment, the upper sealing plate 5 includes an upper sealing steel plate 17 and an upper enclosing purlin 18 disposed on an inner side surface of the upper sealing steel plate 17, and the height of the upper enclosing purlin 18 is higher than that of the upper sealing steel plate 17.
In this embodiment, the wall inner side formwork 6 includes a wall inner formwork steel plate 19 and a wall inner formwork purlin 20 disposed on an inner side surface of the wall inner formwork steel plate 19, the height of the wall inner formwork purlin 20 is higher than that of the wall inner formwork steel plate 19, the upper portion of the wall inner formwork steel plate 19 is connected with the upper enclosing purlin 18 through a tie rod 51, a tie rod hole 21 is formed in the bottom of the wall inner formwork steel plate 19, and a wall inner formwork lower locker 22 penetrates through the tie rod hole 21 to connect the wall inner formwork steel plate 19 with the buttress type dock wall structural steel bar 38.
In this embodiment, the wall inner mold lower locker 22 includes a steel bar support 23 installed on a buttress dock wall structural steel bar 38 and a water stop nut 24 in clamping fit with the steel bar support 23, a snap ring 25 in clamping fit with the steel bar support 23 is arranged in the middle of the water stop nut 24, an external lock steel pipe 27 is arranged outside the wall inner mold steel plate 19, a high-strength screw 26 penetrates through the external lock steel pipe 27 and a pull rod hole 21 and extends into the water stop nut 24 to be in threaded connection with the water stop nut 24, and one end of the high-strength screw 26, which is located outside the wall inner mold steel plate 19, connects the high-strength screw 26 with the external lock steel pipe 27 through a butterfly lock nut 28.
The method has the advantages that the characteristic that the root of the structural steel bar is not easy to deform is fully utilized to solve the problem that the lower opening of the formwork on the inner side of the wall body is difficult to fasten, the lower opening of the formwork is reliably fastened, and the possibility of slurry leakage at the lower part is effectively reduced; meanwhile, a template reinforcing system is improved, the overall construction quality is improved, the difficulty of template installation construction operation is reduced, and the template reinforcing system is simple to manufacture, universal in materials, convenient to operate, safe, reliable and low in cost.
In this embodiment, an anti-corrosion film 37 is attached to one side of the U-shaped prefabricated formwork 7 facing the wall inner side formwork 6.
In this embodiment, the space between the embedded prefabricated formwork 1 and the wall inner side formwork 6 and the space between the side extracted formworks 2 on both sides of the same buttress wall 34 are supported by a plurality of supporting devices 43, and each supporting device 43 includes two formwork spacers 41 and a reinforcing steel bar supporting device 42 located between the two formwork spacers 41.
In this embodiment, the outer side of the side withdrawing form 2 at the edge position is supported by the second support steel pipe 44, the side withdrawing form 2 is withdrawn by the chain block 53, the telescopic end of the chain block 53 is connected with the side form pull ring 13, and the fixed end of the chain block 53 is connected with the counterweight 40.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. The method for the wall plate concrete one-time pouring construction at the position of the tube gallery bottom plate on the counterfort dock wall comprises a toe plate (29), a dock wall (30), a tube gallery (32) and a counterfort wall (34), wherein a wall plate structure at the position of the tube gallery bottom plate on the counterfort dock wall is formed by a reserved section (31) at the upper part of the dock wall (30), the tube gallery bottom plate (33) of the tube gallery (32) and counterfort wall sections at the positions of the reserved section (31) at the upper part of the dock wall and the tube gallery bottom plate (33), and is characterized by comprising the following steps of:
step one, backfilling a sandy soil foundation: filling a sandy soil foundation backfill section (36) at the lower part of the outer side of the wallboard structure at the bottom plate of the pipe gallery on the counterfort docking wall, and erecting an inner side operation scaffold (35) at the inner side of the wallboard structure at the bottom plate of the pipe gallery on the counterfort docking wall;
step two, binding structural steel bars: binding buttress dock wall structural steel bars (38) and buttress wall residual steel bars (47) in a wallboard structure at a bottom plate of a pipe gallery on a buttress dock wall;
step three, mounting a support mechanism and a wall body inner side template: mounting a supporting mechanism at the abdominal cavity position outside the wallboard structure at the bottom plate of the pipe gallery on the counterfort dock wall;
the supporting mechanism comprises an embedded prefabricated template (1) which is arranged between two adjacent buttress walls (34) and is back to a reserved section (31) at the upper part of the dock wall, two side extracting templates (2) which are respectively and oppositely arranged on the side walls of the two adjacent buttress walls (34) and are respectively abutted against the embedded prefabricated template (1), and a lower sealing plate (4) which is used for sealing one end of each of the two side extracting templates (2) far away from the embedded prefabricated template (1), wherein a steel backing plate (3) is arranged at the bottom of each side extracting template (2), the embedded prefabricated templates (1), the lower sealing plates (4) and the two side extracting templates (2) form a filling cavity, and a wallboard corner backfill layer (45) and a concrete cushion layer (46) are filled in the filling cavity;
the outer side of the lower sealing plate (4) is externally supported through a first supporting steel pipe (39), and a balancing weight (40) is arranged at one end, far away from the lower sealing plate (4), of the first supporting steel pipe (39);
a wall inner side template (6) is arranged on the outer side of the reserved section (31) at the upper part of the dock wall;
step four, installing the reinforcement mesh of the bottom plate of the pipe gallery: laying a pipe gallery bottom plate reinforcing mesh (52) on the top of the concrete cushion (46);
step five, template plugging: a reserved section template (49) at the upper part of the dock wall is installed on the outer side of the reserved section (31) at the upper part of the dock wall, a pipe gallery bottom plate template (48) and an upper sealing plate (5) are installed on the outer side of a pipe gallery bottom plate (33), a rest part template (50) of the buttress wall is installed on the outer side of the rest part of the buttress wall section, and the upper sealing plate (5) is positioned right above a lower sealing plate (4);
sixthly, pouring concrete of the wallboard structure at the bottom plate of the pipe gallery on the counterfort dock wall at one time;
seventhly, removing the template and refilling sand in the abdominal cavity position outside the wallboard structure: after the concrete strength meets the design requirement, removing a template (49) of the upper reserved section of the dock wall, a template (48) of a pipe gallery bottom plate, an upper sealing plate (5) and a template (50) of the rest part of the buttress wall;
then the lower sealing plate (4) is dismantled, and the side part is pulled out to draw out the template (2) and the steel base plate (3);
and (4) carrying out sand and soil supplement and backfill on partial slumps of the sand and soil in the abdominal cavity positions outside the wallboard structure.
2. The method for one-time pouring construction of the concrete of the wall plate at the bottom plate of the pipe gallery on the buttress type dock wall according to claim 1, is characterized in that: the embedded prefabricated formwork (1) is a U-shaped prefabricated formwork (7) matched with the outer side wall of the upper reserved section (31) of the dock wall and two adjacent buttress walls (34), a plurality of embedded formwork reinforcing steel bar hanging rings (8) extending into the upper side of an inner gallery bottom plate reinforcing steel bar net (52) are arranged at the top of the U-shaped prefabricated formwork (7), and clamping grooves (9) are formed in the outer portions of the two side walls of the U-shaped prefabricated formwork (7).
3. The method for one-time pouring construction of the concrete of the wall plate at the bottom plate of the pipe gallery on the buttress type dock wall according to claim 2, is characterized in that: the side extracting template (2) comprises a side template (10) matched with the clamping groove (9), a plurality of side enclosing purlins (11) are arranged on the inner side of the side template (10), a side mould pull ring (13) is arranged at one end, far away from the clamping groove (9), of the side extracting template (2), a plurality of connecting holes (12) for hoisting the side extracting template (2) are formed in the side enclosing purlin (11) at the top, and steel base plate pull holes (14) are formed in the outer side of the steel base plate (3).
4. The method for one-time pouring construction of the concrete of the wall plate at the bottom plate of the pipe gallery on the buttress type dock wall according to claim 3, is characterized in that: the lower sealing plate (4) comprises a lower sealing steel plate (15) matched with one end, far away from the clamping groove (9), of the side drawing-out template (2), and a lower sealing purlin (16) is installed on the inner side face of the lower sealing steel plate (15).
5. The method for one-time pouring construction of the concrete of the wall plate at the bottom plate of the pipe gallery on the buttress type dock wall according to claim 1, is characterized in that: the upper sealing plate (5) comprises an upper sealing steel plate (17) and an upper sealing purlin (18) arranged on the inner side surface of the upper sealing steel plate (17), and the height of the upper sealing purlin (18) is higher than that of the upper sealing steel plate (17).
6. The method for one-time pouring construction of the concrete of the wall plate at the bottom plate of the pipe gallery on the counterfort dock wall according to claim 5, characterized in that: the wall body inner side formwork (6) comprises a wall body inner formwork steel plate (19) and a wall body inner formwork enclosing purlin (20) arranged on the inner side face of the wall body inner formwork steel plate (19), the height of the wall body inner formwork enclosing purlin (20) is higher than that of the wall body inner formwork steel plate (19), the upper portion of the wall body inner formwork steel plate (19) is connected with an upper enclosing purlin (18) through a tie rod (51), a tie rod hole (21) is formed in the bottom of the wall body inner formwork steel plate (19), and a wall body inner formwork lower portion locker (22) penetrates through the tie rod hole (21) to connect the wall body inner formwork steel plate (19) with a counterfort type dock wall structure steel bar (38).
7. The method for one-time pouring construction of the concrete of the wall plate at the bottom plate of the pipe gallery on the counterfort dock wall according to claim 6, characterized in that: the wall body internal mold lower part locker (22) comprises a steel bar support (23) installed on a counterfort dock wall structure steel bar (38) and a water stop nut (24) in clamping fit with the steel bar support (23), a clamping ring (25) in clamping fit with the steel bar support (23) is arranged in the middle of the water stop nut (24), an external locking steel pipe (27) is arranged outside a wall body internal mold steel plate (19), a high-strength screw (26) penetrates through the external locking steel pipe (27) and a pull rod hole (21) to stretch into the water stop nut (24) to be in threaded connection with the water stop nut (24), and the high-strength screw (26) is located at one end outside the wall body internal mold steel plate (19) and is connected with the high-strength screw (26) and the external locking steel pipe (27) through a butterfly locking nut (28).
8. The method for one-time pouring construction of the concrete of the wall plate at the bottom plate of the pipe gallery on the buttress type dock wall according to claim 2, is characterized in that: and an anti-corrosion film (37) is adhered to one side, facing the wall body inner side formwork (6), of the U-shaped prefabricated formwork (7).
9. The method for one-time pouring construction of the concrete of the wall plate at the bottom plate of the pipe gallery on the counterfort dock wall according to claim 1, is characterized in that: support through a plurality of devices (43) that prop between template (2) are taken out to the lateral part of burying between prefabricated template (1) and the inside template of wall body (6) and same counterfort wall (34) both sides, prop device (43) including two template cushion blocks (41) and be located reinforcing bar between two template cushion blocks (41) and prop (42).
10. The method for one-time pouring construction of the concrete of the wall plate at the bottom plate of the pipe gallery on the counterfort dock wall according to claim 4, characterized in that: the outer side of the side withdrawing template (2) located at the edge position is supported through a second support steel pipe (44), the side withdrawing template (2) is withdrawn through a chain block (53), the telescopic end of the chain block (53) is connected with a side mold pull ring (13), and the fixed end of the chain block (53) is connected with a counterweight block (40).
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