CN116695848A - Construction method of cast-in-place concrete drain open trench - Google Patents
Construction method of cast-in-place concrete drain open trench Download PDFInfo
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- CN116695848A CN116695848A CN202310992401.9A CN202310992401A CN116695848A CN 116695848 A CN116695848 A CN 116695848A CN 202310992401 A CN202310992401 A CN 202310992401A CN 116695848 A CN116695848 A CN 116695848A
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- 238000010276 construction Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000009415 formwork Methods 0.000 claims description 70
- 229910000831 Steel Inorganic materials 0.000 claims description 32
- 239000010959 steel Substances 0.000 claims description 32
- 239000002023 wood Substances 0.000 claims description 17
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
- E03F3/046—Open sewage channels
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
- E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
The invention discloses a construction method of a cast-in-place concrete drainage open trench, which solves the problem of how to conveniently construct a concrete pouring template support system of the drainage open trench, and belongs to the technical field of templates for civil engineering; the method comprises the steps of firstly, respectively installing inner and outer vertical face pouring templates of two pre-poured ditch walls on a concrete cushion layer poured at the inner bottom of a ditch, and respectively installing inner supporting rods with the same section width as the ditch walls at the bottom and the upper part between the inner and outer templates of the ditch walls; inserting the prefabricated double-II-shaped top ends into the clamping frames, and inserting the clamping frames into the top ends and the two sides of the two groups of ditch wall inner and outer vertical face pouring templates along the direction from top to bottom, so that the two groups of ditch side wall pouring templates and the double-II-shaped top ends are inserted into the clamping frames to form a stable frame body; the site operation is simple and convenient.
Description
Technical Field
The invention relates to a drainage open ditch, in particular to a construction method of a concrete drainage open ditch.
Background
Drainage open trenches are generally arranged at two sides of a road in a modern industrial park, the drainage open trenches are open-cut trenches at two sides of the road in the park, and after templates are supported in the trenches, the construction of cast-in-place concrete is completed; the specific implementation method comprises the following steps: the method comprises the following specific steps of: ejecting a concrete ditch wall on the cushion layer, and positioning control lines of a ditch wall template; drilling holes at a certain interval on the inner side and the outer side of a positioning control line of the cushion layer trench wall template and implanting short steel bar heads for positioning the root of the trench wall template; installing a pouring template outside the ditch wall according to the positioning line of the template outside the ditch wall and the positioning short steel bar head; installing a steel bar support of a ditch wall inner side template at the middle part of the upper part of the cushion layer, wherein the height of the steel bar support is consistent with the thickness of a pre-poured ditch bottom plate, and installing a ditch wall inner side elevation template on the steel bar support; installing respective back wood keels on the inner wall template and the outer wall template of the ditch, punching holes in the middle of the inner side template and the outer side template of the ditch wall, and tying the inner side template and the outer side template of the pre-cast-in-situ ditch wall together through split bolts; then, respectively installing inner supporting rods with the same section width as the ditch wall at the bottom, the middle and the upper part between the two ditch wall templates; then, installing an external fixed vertical pipe of an external template of the pre-cast-in-situ ditch wall; finally, fixing pull rod steel pipes at the tops of two pre-cast-in-situ ditch walls, connecting a horizontal pull rod and a vertical steel pipe of a reinforced template into a whole by using a fastener, and screwing the inclined top rod steel pipes and the pull rods by using the fastener after adjusting the perpendicularity and straightness of the template, so that the ditch template supporting system becomes a stable supporting system; the ditch concrete cast-in-situ formwork support system has the following defects: (1) The template mounting process is numerous, a large number of short steel pipes and fasteners are required to be consumed, and the stability of the whole template supporting system is not high; (2) The split bolts are used for reinforcement between the inner and outer templates of the trench wall, the exposed screw heads on the concrete trench wall are required to be cut after the split bolts are disassembled, and the screw heads are subjected to secondary plastering and repairing, so that the workload is high, the cost of repairing materials is increased due to secondary repairing, the repairing process requirement is high, and the repairing workload is high; how to greatly reduce the construction cost of the cast-in-place concrete ditch, simplify the formwork erection process and strengthen the concrete cast-in-place formwork support system of the ditch wall has become a problem to be solved on site.
Disclosure of Invention
The invention provides a construction method of a cast-in-place concrete drainage open trench, which solves the problems of how to conveniently construct a concrete pouring formwork support system of the drainage open trench and overcomes the defect of low repeated use rate of support components used by the formwork support system.
The invention solves the technical problems by the following technical proposal:
the general conception of the invention is as follows: the steel bars are prefabricated into a double-II-shaped top end to be inserted into the clamping frame, and the two II-shaped top end horizontal rods of the inserting frame are connected into the same horizontal rod piece, so that the clamping frame is an integral frame body; the method comprises the steps of firstly, respectively installing inner and outer vertical face pouring templates of two pre-poured ditch walls on a concrete cushion layer poured at the inner bottom of a ditch, and respectively installing inner supporting rods with the same section width as the ditch walls at the bottom and the upper part between the inner and outer templates of the ditch walls; inserting the prefabricated double-II-shaped top ends into the clamping frames, and inserting and clamping the top ends and the two sides of the two groups of ditch wall inner and outer side elevation pouring templates along the direction from top to bottom, so that the two groups of ditch side wall pouring templates and the double-II-shaped top ends are inserted into the clamping frames to form a stable frame support body; then, the outer side inclined supporting rods are arranged between the outer side edges of the double-II-shaped top ends inserted into the clamping frames and the side slopes in the grooves, so that on the cross section of the pre-poured ditch, the two outer side inclined supporting rods and the double-II-shaped top ends are inserted into the clamping frames and the inner supporting rods between the two groups of ditch wall inner and outer templates to form a path for sequentially transmitting transverse force, and a stable integrated template supporting system is constructed; the formwork system has the characteristics of few supporting procedures, simple site operation, simple operation and good stability, and the main support system is fixedly connected with the trench wall concrete pouring formwork through grafting, and the formwork and the grafting clamping frame can be reused; the invention eliminates the traditional method of arranging the split bolts between the two pouring templates on the side wall of the ditch, improves the repeated use rate of the templates, replaces the fixed fasteners at the top ends of the traditional ditch concrete pouring templates by inserting the clamping frames at the top ends of the double II shapes, and greatly saves the investment of construction materials.
An integrated supporting system of a concrete drain open trench cast-in-situ template comprises a drain trench, a trench bottom concrete cushion layer is arranged at the trench bottom of the drain trench, an inner template support of a pre-cast drain open trench is arranged in the middle of the top end surface of the trench bottom concrete cushion layer, a left trench wall inner template is arranged at the left end of the inner template support, a right trench wall inner template is arranged at the right end of the inner template support, a left trench wall outer template is arranged on the trench bottom concrete cushion layer at the left side of the left trench wall inner template, a right trench wall outer template is arranged on the trench bottom concrete cushion layer at the right side of the right trench wall inner template, a left trench wall outer template and a left trench wall inner template are arranged between the left trench wall outer template and the left trench wall inner template, the left upper inner stay bar and the left lower inner stay bar are respectively arranged between the right channel wall inner template and the right channel wall outer template, the right upper inner stay bar and the right lower inner stay bar are respectively arranged between the left channel wall outer template, the left channel wall inner template, the right channel wall inner template and the right channel wall outer template, a double-II-shaped top inserting clamping frame is arranged between the left channel wall outer template, the left channel wall inner template and the right channel wall outer template, the double-II-shaped top inserting clamping frame is formed by two II-shaped frames which are arranged together in parallel, the top horizontal rods of the two II-shaped frames are the same horizontal rod piece, the left channel wall outer template and the left channel wall inner template are clamped in the socket of the left II-shaped frame, and the right channel wall inner template and the right channel wall outer template are clamped in the socket of the right II-shaped frame; the clamping frame left inclined stay bar is connected with the top between the clamping frame and the left side slope in the drainage groove in a propping mode, and the clamping frame right inclined stay bar is connected with the top between the clamping frame and the right side slope in the drainage groove in a propping mode.
The left side of inserting the clamping frame at the top of two "II" shape is provided with the left side of clamping frame at the top of two "II" shape and is provided with clamping frame intensity right side reinforcing diagonal brace, the right side of inserting the clamping frame at the top of two "II" shape is provided with clamping frame intensity right reinforcing diagonal brace.
Positioning short steel bar heads are respectively arranged on the top end surfaces of the tank bottom concrete cushion layers at the left side and the right side of the left tank wall outer template; positioning short steel bar heads are respectively arranged on the top end surfaces of the tank bottom concrete cushion layers on the left side and the right side of the right tank wall outer template.
The double-II-shaped top end inserting clamping frame is inserted among the left trench wall outer template, the left trench wall inner template, the right trench wall inner template and the right trench wall outer template along the direction from top to bottom; and, along the trend of drainage slot, be provided with two "II" shape tops at four template tops interval and insert the card frame.
Longitudinal wood ridges are arranged between the left vertical rods of the left II-shaped frame and the left side vertical surfaces of the left channel wall outer templates at intervals, and longitudinal wood ridges are arranged between the right vertical rods of the left II-shaped frame and the right side vertical surfaces of the left channel wall inner templates at intervals.
A construction method of a cast-in-place concrete drain open trench comprises the steps of firstly, digging a drain trench with an inverted trapezoid cross section on the ground, pouring a tank bottom concrete cushion layer on the bottom surface of the drain trench, setting an inner formwork fixing support in the middle of the tank bottom concrete cushion layer after the tank bottom concrete cushion layer is finally set, supporting a left trench wall inner formwork at the left end of the inner formwork fixing support, supporting a left trench wall outer formwork on the tank bottom concrete cushion layer at the left side of the left trench wall inner formwork, and respectively setting a left upper inner supporting rod and a left lower inner supporting rod between the left trench wall outer formwork and the left trench wall inner formwork to construct a left trench wall pouring formwork of the pre-poured drain open trench; a right trench wall inner template is supported at the right end of the inner template support, a right trench wall outer template is supported on a trench bottom concrete cushion layer on the right side of the right trench wall inner template, a right upper inner supporting rod and a right lower inner supporting rod are respectively arranged between the right trench wall inner template and the right trench wall outer template, and a right trench wall pouring template of a pre-poured drainage open trench is constructed, wherein the distance between a left trench wall outer template and a left trench wall inner template is equal to the distance between the right trench wall inner template and the right trench wall outer template; the left channel wall pouring template and the right channel wall pouring template are fixed according to the following steps:
the first step, two II-shaped frames are made by using steel bars, and the interval between two upright rods in the II-shaped frames is larger than the interval between the outer template of the left trench wall and the inner template of the left trench wall; arranging two II-shaped frames in parallel, welding the top end cross beams of the two II-shaped frames together by using straight-line-shaped reinforcing steel bars, enabling the distance between central symmetry axes of the two II-shaped frames to be equal to the distance between the central axes of the two left channel wall templates and the central axes of the two right channel wall templates, and welding the two II-shaped frames connected together to form a double II-shaped top end insertion clamping frame;
the second step, the double-II-shaped top end inserting clamping frame is moved to the position right above the drainage groove, then the double-II-shaped top end inserting clamping frame is inserted between the left groove wall outer template, the left groove wall inner template, the right groove wall inner template and the right groove wall outer template along the vertical direction from top to bottom, the left groove wall outer template and the left groove wall inner template are inserted into the insertion opening of the left II-shaped top end inserting clamping frame of the double-II-shaped top end inserting clamping frame, and the right groove wall inner template and the right groove wall outer template are inserted into the insertion opening of the right II-shaped top end inserting clamping frame of the double-II-shaped top end inserting clamping frame;
thirdly, arranging longitudinal wood ridges at intervals between a left upright rod of the left II-shaped frame and the left side vertical surface of the left trench wall outer template; longitudinal wood ridges are arranged between the right upright rod of the left II-shaped frame and the right side elevation of the left trench wall inner template at intervals; longitudinal wood ridges are arranged between the left upright posts of the right II-shaped frame and the left side vertical surfaces of the right channel wall inner templates at intervals, and longitudinal wood ridges are arranged between the right upright posts of the right II-shaped frame and the right side vertical surfaces of the right channel wall outer templates at intervals; inserting a clamping frame through the top end of the double II shape, and integrally clamping and fixing a left ditch wall pouring template and a right ditch wall pouring template of the open drainage ditch together;
the fourth step, insert the left inner slope of the ditch and drain the left side slope of the ditch between the clamping frame in the top of the double "II", connect the left diagonal brace of the clamping frame in the top of the double "II", insert between clamping frame and drain the right inner slope of the ditch in the top of the double "II", connect the right diagonal brace of the clamping frame, pour the template and right ditch wall pour the template to fix in drain the ditch in the left ditch wall of the ditch;
fifthly, arranging double-II-shaped top inserting clamping frames at intervals on a left ditch wall pouring template and a right ditch wall pouring template of the drainage open ditch along the trend of the drainage ditch;
pouring concrete through an upper port between the left trench wall outer template and the left trench wall inner template and an upper port between the right trench wall inner template and the right trench wall outer template, and stopping concrete pouring after the poured concrete submerges the inner template support to form a drainage open trench bottom plate;
and seventh, after the concrete of the bottom plate of the drain open trench to be poured is initially set, pouring the concrete again through an upper port between the outer template of the left trench wall and the inner template of the left trench wall and an upper port between the inner template of the right trench wall and the outer template of the right trench wall to form the left trench wall and the right trench wall of the drain open trench, wherein the left trench wall, the bottom plate of the drain open trench and the right trench wall form the concrete drain open trench.
After the concrete of the left ditch wall and the right ditch wall of the poured open drain is finally set, the template is removed according to the following method:
eighth, respectively removing the left inclined stay bar of the clamping frame and the right inclined stay bar of the clamping frame;
ninth, inserting the top ends of the double II shapes into the clamping frames and vertically pulling up the clamping frames to separate the clamping frames from four templates for pouring the open drain ditch;
tenth, respectively removing the left trench wall outer template, the left trench wall inner template, the right trench wall inner template and the right trench wall outer template; the removed templates, the clamping frame left inclined stay bars, the clamping frame right inclined stay bars and the top ends of the double II shapes are inserted into the clamping frames for supporting and fixing the pre-poured drainage open channel templates of the subsequent sections.
Positioning short steel bar heads are respectively arranged on tank bottom concrete cushion layers on the left side and the right side of the left tank wall outer template, and the bottom end of the left tank wall outer template is positioned and fixed on the tank bottom concrete cushion layers through the positioning short steel bars; positioning short steel bar heads are respectively arranged on the tank bottom concrete cushion layers at the left side and the right side of the right tank wall outer template, and the right tank wall outer template is positioned and fixed on the tank bottom concrete cushion layer through the positioning short steel bars.
A middle transverse support horizontal rod is arranged between the left II-shaped frame and the right II-shaped frame; a clamping frame left reinforcing inclined strut is arranged between the left end of the horizontal ejector rod of the left II-shaped frame and the left upright rod of the left II-shaped frame; a clamping frame right reinforcing inclined supporting rod is arranged between the right end of the horizontal ejector rod of the right II-shaped frame and the right upright rod of the right II-shaped frame.
And after the left trench wall outer template, the left trench wall inner template, the right trench wall inner template and the right trench wall outer template are removed, backfilling operation is performed between the outer side of the left trench wall and the left inner slope of the drainage trench and between the outer side of the right trench wall and the right inner slope of the drainage trench.
The invention adopts the integrated ditch wall formwork support reinforcing structure, simultaneously fixes the inner side and the outer side four-channel vertical face formworks of the ditch double wall at one time, replaces the fastening type of the fastener type steel pipe support and the formwork inner-penetrating split bolt, and ensures the stability and the non-deformation of the ditch inner wall formwork and the ditch outer wall formwork under the combined action of the ditch wall inner supporting rod and the ditch wall outer side oblique ejector rod support; the invention not only greatly reduces the investment of fasteners, steel pipes, disposable split bolts and plastering materials, but also greatly saves labor cost, has simple and convenient field operation, and effectively improves the molding effect and the visual quality of the concrete ditch.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic structural view of a double-n-shaped top insertion clamping frame 8 according to the present invention;
reference numerals in the drawings: 1-drainage groove, 2-groove bottom concrete cushion, 3-inner template support, 4-left groove wall inner template, 5-right groove wall inner template, 6-left groove wall outer template, 7-right groove wall outer template, 8-double II-shaped top insertion clamping frame, 9-clamping frame left diagonal brace, 10-clamping frame right diagonal brace, 11-middle horizontal brace, 12-clamping frame left reinforcing diagonal brace, 13-clamping frame right reinforcing diagonal brace, 14-left upper inner brace, 15-left lower inner brace, 16-right upper inner brace and 17-right lower inner brace.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
an integrated support system of a concrete drain open trench cast-in-situ formwork comprises a drain trench 1, a trench bottom concrete cushion layer 2 is arranged at the trench bottom of the drain trench 1, an inner formwork support 3 of a pre-cast drain open trench is arranged in the middle of the top end surface of the trench bottom concrete cushion layer 2, a left trench wall inner formwork 4 is arranged at the left end of the inner formwork support 3, a right trench wall inner formwork 5 is arranged at the right end of the inner formwork support 3, a left trench wall outer formwork 6 is arranged on the trench bottom concrete cushion layer 2 at the left side of the left trench wall inner formwork 4, a right trench wall outer formwork 7 is arranged on the trench bottom concrete cushion layer 2 at the right side of the right trench wall inner formwork 5, a space between the left trench wall outer formwork 6 and the left trench wall inner formwork 4, the left upper inner stay bar 14 and the left lower inner stay bar 15 are respectively arranged, the right upper inner stay bar 16 and the right lower inner stay bar 17 are respectively arranged between the right channel wall inner formwork 5 and the right channel wall outer formwork 7, the double-II-shaped top end inserting clamping frame 8 is arranged between the left channel wall outer formwork 6, the left channel wall inner formwork 4, the right channel wall inner formwork 5 and the right channel wall outer formwork 7, the double-II-shaped top end inserting clamping frame 8 is formed by combining two II-shaped frames, the top end horizontal rods of the two II-shaped frames are the same horizontal rod piece, the left channel wall outer formwork 6 and the left channel wall inner formwork 4 are clamped in the socket of the left II-shaped frame, and the right channel wall inner formwork 5 and the right channel wall outer formwork 7 are clamped in the socket of the right II-shaped frame; the clamping frame left inclined stay bar 9 is connected between the clamping frame 8 and the left side slope in the drainage groove 1 in a jacking mode, and the clamping frame right inclined stay bar 10 is connected between the clamping frame 8 and the right side slope in the drainage groove 1 in a jacking mode.
The left side that inserts the card frame 8 at two "II" shape tops is provided with middle part stull horizon bar 11 between "II" shape frame and the right side "II" shape frame of card frame 8, and middle part stull horizon bar 11 plays the effect of further strengthening the stability of whole integration template, inserts the left side of card frame 8 at two "II" shape tops, is provided with card frame left side and strengthens diagonal brace 12, inserts the right side of card frame 8 at two "II" shape tops, is provided with card frame right side and strengthens diagonal brace 13, and the setting of two diagonal brace makes two "II" shape tops insert card frame 8 more stable.
Positioning short steel bar heads are respectively arranged on the top end faces of the tank bottom concrete cushion layers 2 on the left side and the right side of the left tank wall outer formwork 6, two rows of positioning short steel bars play a role in fixing the lower end of the left tank wall outer formwork 6, and meanwhile, play a role in positioning all the formworks along the trend of the tank; positioning short steel bar heads are respectively arranged on the top end surfaces of the tank bottom concrete cushion layer 2 on the left side and the right side of the right tank wall outer template 7.
After four templates of the pouring groove are built, the double-II-shaped top inserting clamping frame 8 is firstly moved to be right above the four templates, then is inserted between the top end of the left groove wall outer template 6, the top end of the left groove wall inner template 4, the top end of the right groove wall inner template 5 and the top end of the right groove wall outer template 7 along the direction from top to bottom, finally, the double-II-shaped top inserting clamping frame 8 is continuously pressed down, the upper end of the templates enters the top end in the groove of the double-II-shaped frame, and the double-II-shaped top inserting clamping frame 8 fixedly connects the four templates into a whole at the upper end; along the trend of the drainage groove 1, double II-shaped top insertion clamping frames 8 are distributed at intervals, so that the stability of the whole template system is ensured.
Longitudinal wood ridges are arranged between the left upright posts of the left II-shaped frame and the left side vertical surfaces of the left channel wall outer templates 6 at intervals, and longitudinal wood ridges are arranged between the right upright posts of the left II-shaped frame and the right side vertical surfaces of the left channel wall inner templates 4 at intervals; the wood ridges are arranged at intervals on the outer sides of the two templates, so that the concrete pouring quality of the trench wall is ensured.
A construction method of a cast-in-place concrete drain open trench comprises the steps of firstly, digging a drain trench 1 with an inverted trapezoid cross section on the ground, pouring a tank bottom concrete cushion layer 2 on the bottom surface of the drain trench 1, setting an inner formwork fixing support 3 in the middle of the tank bottom concrete cushion layer 2 after the tank bottom concrete cushion layer 2 is finally set, supporting a left trench wall inner formwork 4 at the left end of the inner formwork fixing support 3, supporting a left trench wall outer formwork 6 on the tank bottom concrete cushion layer 2 at the left side of the left trench wall inner formwork 4, and respectively setting a left upper inner supporting rod 14 and a left lower inner supporting rod 15 between the left trench wall outer formwork 6 and the left trench wall inner formwork 4 to construct a left trench wall pouring formwork of the pre-poured drain open trench; a right trench wall inner template 5 is supported at the right end of the inner template fixing support 3, a right trench wall outer template 7 is supported on a trench bottom concrete cushion layer 2 on the right side of the right trench wall inner template 5, a right upper inner supporting rod 16 and a right lower inner supporting rod 17 are respectively arranged between the right trench wall inner template 5 and the right trench wall outer template 7, a right trench wall pouring template of a pre-poured drainage open trench is constructed, and the distance between a left trench wall outer template 6 and a left trench wall inner template 4 is equal to the distance between the right trench wall inner template 5 and the right trench wall outer template 7; the left channel wall pouring template and the right channel wall pouring template are fixed according to the following steps:
firstly, manufacturing two II-shaped frames by using steel bars, wherein the distance between two upright rods in the II-shaped frames is larger than the distance between the left channel wall outer template 6 and the left channel wall inner template 4; arranging two II-shaped frames in parallel, welding the top end cross beams of the two II-shaped frames together by using straight-line-shaped reinforcing steel bars, enabling the distance between central symmetry axes of the two II-shaped frames to be equal to the distance between the central axes of the two left channel wall templates and the central axes of the two right channel wall templates, and welding the two II-shaped frames connected together to form a double II-shaped top end insertion clamping frame 8;
secondly, the double-II-shaped top end inserting clamping frame 8 is moved to the position right above the drainage groove 1, then the double-II-shaped top end inserting clamping frame is inserted between the left groove wall outer template 6, the left groove wall inner template 4, the right groove wall inner template 5 and the right groove wall outer template 7 along the vertical direction from top to bottom, the left groove wall outer template 6 and the left groove wall inner template 4 are inserted into the socket of the left II-shaped frame of the double-II-shaped top end inserting clamping frame 8, and the right groove wall inner template 5 and the right groove wall outer template 7 are inserted into the socket of the right II-shaped frame of the double-II-shaped top end inserting clamping frame 8;
thirdly, arranging longitudinal wood ridges at intervals between the left upright posts of the left II-shaped frames and the left side vertical surfaces of the left trench wall outer templates 6; longitudinal wood ridges are arranged between the right upright rod of the left II-shaped frame and the right side vertical surface of the left trench wall inner template 4 at intervals; longitudinal wood ridges are arranged between the left upright posts of the right II-shaped frame and the left side vertical surfaces of the right channel wall inner templates 5 at intervals, and between the right upright posts of the right II-shaped frame and the right side vertical surfaces of the right channel wall outer templates 7 at intervals; inserting a clamping frame 8 through the top end of the double II shape, and integrally clamping and fixing a left ditch wall pouring template and a right ditch wall pouring template of the open drainage ditch together;
fourthly, inserting a clamping frame 8 between the double-II-shaped top end and the left inner side slope of the drainage ditch 1, jacking a clamping frame left inclined stay bar 9, inserting a clamping frame 8 between the double-II-shaped top end and the right inner side slope of the drainage ditch 1, jacking a clamping frame right inclined stay bar 10, and fixing a left ditch wall pouring template and a right ditch wall pouring template of the drainage open ditch in the drainage ditch 1;
fifthly, along the trend of the drainage ditch 1, a double-II-shaped top inserting clamping frame 8 is arranged on a left ditch wall pouring template and a right ditch wall pouring template of the drainage open ditch at intervals;
step six, pouring concrete through an upper port between the left trench wall outer template 6 and the left trench wall inner template 4 and an upper port between the right trench wall inner template 5 and the right trench wall outer template 7, and stopping concrete pouring after the poured concrete submerges the inner template fixing support 3 to form a drainage open trench bottom plate;
seventh, after the concrete of the bottom plate of the drain open trench to be poured is initially set, pouring the concrete again through an upper port between the left trench wall outer template 6 and the left trench wall inner template 4 and an upper port between the right trench wall inner template 5 and the right trench wall outer template 7 to form a left trench wall and a right trench wall of the drain open trench, wherein the left trench wall, the drain open trench bottom plate and the right trench wall form a concrete drain open trench; the method aims at overcoming the defect that when continuous casting is performed, concrete on two casting side walls easily enters the bottom plate of the groove from the bottom, and the bottom plate of the groove is too thick.
After the concrete of the left ditch wall and the right ditch wall of the poured open drain is finally set, the template is removed according to the following method:
eighth, the clamping frame left inclined supporting rod 9 and the clamping frame right inclined supporting rod 10 are respectively removed;
ninth, inserting the top end of the double II-shaped structure into the clamping frame 8, and vertically pulling up the double II-shaped structure to separate the double II-shaped structure from four templates for pouring the open drain;
tenth, respectively removing the left trench wall outer template 6, the left trench wall inner template 4, the right trench wall inner template 5 and the right trench wall outer template 7; inserting the detached template, the clamping frame left inclined stay bar 9, the clamping frame right inclined stay bar 10 and the double-II-shaped top end into the clamping frame 8 for supporting and fixing the pre-poured drainage open channel template of the subsequent section; thereby realizing the full utilization of the template building material.
Positioning short steel bar heads are respectively arranged on the top end faces of the tank bottom concrete cushion layer 2 on the left side and the right side of the left tank wall outer template 6, and the bottom end of the left tank wall outer template 6 is positioned and fixed on the top end face of the tank bottom concrete cushion layer 2 through the positioning short steel bars; positioning short steel bar heads are respectively arranged on the top end surfaces of the tank bottom concrete cushion layers 2 on the left side and the right side of the right tank wall outer formwork 7, and the right tank wall outer formwork 7 is positioned and fixed on the top end surfaces of the tank bottom concrete cushion layers 2 through the positioning short steel bars; four rows of locating short bars can be drilled and implanted by pre-scribing.
The middle transverse bracing horizontal rod 11 is arranged between the left II-shaped frame and the right II-shaped frame of the clamping frame 8, which is inserted into the top of the double II-shaped frame, so that the transverse stress of the templates at the two sides of the drainage ditch is effectively transmitted, and the strength of the whole integrated supporting frame is better; the left side of the clamping frame 8 inserted at the top of the double II shape is provided with a clamping frame left reinforcing inclined strut 12, and the right side of the clamping frame 8 inserted at the top of the double II shape is provided with a clamping frame right reinforcing inclined strut 13; thereby further enhancing the stability of the insertion of the double-n-shaped top into the cartridge 8.
After the left trench wall outer formwork 6, the left trench wall inner formwork 4, the right trench wall inner formwork 5 and the right trench wall outer formwork 7 are removed, backfilling operation is performed between the outer side of the concrete side wall of the concrete drainage open trench and the inner side slope of the drainage trench 1, so that construction of the drainage open trench on two sides of the road is completed.
Claims (5)
1. A construction method of a cast-in-place concrete drain open trench comprises the steps of firstly, digging a drain trench (1) with an inverted trapezoid cross section on the ground, pouring a tank bottom concrete cushion layer (2) on the bottom surface of the drain trench (1), setting an inner formwork fixing support (3) in the middle of the tank bottom concrete cushion layer (2) after the tank bottom concrete cushion layer (2) is finally set, setting a left trench wall inner formwork (4) at the left end of the inner formwork fixing support (3), setting a left trench wall outer formwork (6) on the tank bottom concrete cushion layer (2) at the left side of the left trench wall inner formwork (4), and setting a left upper inner supporting rod (14) and a left lower inner supporting rod (15) between the left trench wall outer formwork (6) and the left trench wall inner formwork (4) respectively to construct a left trench wall pouring formwork of the pre-poured drain open trench; a right trench wall inner template (5) is supported at the right end of the inner template fixing support (3), a right trench wall outer template (7) is supported on a trench bottom concrete cushion layer (2) on the right side of the right trench wall inner template (5), a right upper inner supporting rod (16) and a right lower inner supporting rod (17) are respectively arranged between the right trench wall inner template (5) and the right trench wall outer template (7), a right trench wall pouring template of a pre-poured drainage open trench is constructed, and the distance between a left trench wall outer template (6) and the left trench wall inner template (4) is equal to the distance between the right trench wall inner template (5) and the right trench wall outer template (7); the method is characterized in that the left trench wall pouring template and the right trench wall pouring template are fixed according to the following steps:
the first step, two II-shaped frames are made of steel bars, and the distance between two vertical rods in the II-shaped frames is larger than the distance between the left channel wall outer template (6) and the left channel wall inner template (4); arranging two II-shaped frames in parallel, welding the top end cross beams of the two II-shaped frames together by using straight-line-shaped reinforcing steel bars, enabling the distance between central symmetry axes of the two II-shaped frames to be equal to the distance between the central axes of the two left channel wall templates and the central axes of the two right channel wall templates, and welding the two II-shaped frames connected together to form a double II-shaped top end insertion clamping frame (8);
secondly, moving the double-II-shaped top end inserting clamping frame (8) to the position right above the drainage groove (1), and then plugging the double-II-shaped top end inserting clamping frame into the positions between the left groove wall outer template (6), the left groove wall inner template (4), the right groove wall inner template (5) and the right groove wall outer template (7) along the vertical direction from top to bottom, plugging the left groove wall outer template (6) and the left groove wall inner template (4) into the socket of the left II-shaped frame of the double-II-shaped top end inserting clamping frame (8), and plugging the right groove wall inner template (5) and the right groove wall outer template (7) into the socket of the right II-shaped frame of the double-II-shaped top end inserting clamping frame (8);
thirdly, arranging longitudinal wood ridges at intervals between a left upright rod of the left II-shaped frame and the left side vertical surface of the left trench wall outer template (6); longitudinal wood ridges are arranged between the right upright rod of the left II-shaped frame and the right side vertical surface of the left trench wall inner template (4) at intervals; longitudinal wood ridges are arranged between the left upright posts of the right II-shaped frame and the left side vertical surfaces of the right channel wall inner templates (5) at intervals, and longitudinal wood ridges are arranged between the right upright posts of the right II-shaped frame and the right side vertical surfaces of the right channel wall outer templates (7) at intervals; inserting a clamping frame (8) through the top end of the double II shape, and integrally clamping and fixing a left ditch wall pouring template and a right ditch wall pouring template of the open drainage ditch together;
fourthly, inserting a clamping frame (8) between the double-II-shaped top end and the left inner side slope of the drainage groove (1), jacking a clamping frame left inclined strut (9), inserting a clamping frame (8) between the double-II-shaped top end and the right inner side slope of the drainage groove (1), jacking a clamping frame right inclined strut (10), and fixing a left groove wall pouring template and a right groove wall pouring template of the drainage open groove in the drainage groove (1);
fifthly, arranging double-II-shaped top inserting clamping frames (8) at intervals on a left ditch wall pouring template and a right ditch wall pouring template of the drainage open ditch along the trend of the drainage ditch (1);
step six, pouring concrete through an upper port between the left trench wall outer template (6) and the left trench wall inner template (4) and an upper port between the right trench wall inner template (5) and the right trench wall outer template (7), and stopping concrete pouring after the poured concrete submerges the inner template fixing support (3) to form a drainage open trench bottom plate;
seventh, after the concrete of the drain open trench bottom plate to be poured is initially set, concrete is poured again through an upper port between the left trench wall outer template (6) and the left trench wall inner template (4) and an upper port between the right trench wall inner template (5) and the right trench wall outer template (7) to form a left trench wall and a right trench wall of the drain open trench, and the left trench wall, the drain open trench bottom plate and the right trench wall form the concrete drain open trench.
2. The method for constructing a cast-in-place concrete open drain according to claim 1, wherein after the concrete of the left and right walls of the cast open drain is finally set, the operation of removing the form is performed as follows:
eighth, the left inclined stay bar (9) and the right inclined stay bar (10) of the clamping frame are respectively removed;
ninth, inserting the top ends of the double II shapes into the clamping frames (8) and vertically pulling up the clamping frames to separate the clamping frames from four templates for pouring the open drain;
tenth, respectively removing the left trench wall outer template (6), the left trench wall inner template (4), the right trench wall inner template (5) and the right trench wall outer template (7); the detached templates, the clamping frame left inclined stay bars (9), the clamping frame right inclined stay bars (10) and the double-Pi-shaped top ends are inserted into the clamping frames (8) for supporting and fixing the drainage open ditch templates of the subsequent sections, which are poured in advance.
3. The construction method of the cast-in-place concrete drain open trench according to claim 1, wherein positioning short steel bar heads are respectively arranged on the tank bottom concrete cushion layers (2) on the left side and the right side of the left trench wall outer formwork (6), and the bottom end of the left trench wall outer formwork (6) is positioned and fixed on the tank bottom concrete cushion layers (2) through the positioning short steel bars; positioning short steel bar heads are respectively arranged on the tank bottom concrete cushion layers (2) at the left side and the right side of the right tank wall outer template (7), and the right tank wall outer template (7) is positioned and fixed on the tank bottom concrete cushion layers (2) through the positioning short steel bars.
4. The construction method of the cast-in-place concrete drainage open ditch according to claim 1, characterized in that a middle transverse strut horizontal rod (11) is arranged between the left and right II-shaped frames; a clamping frame left reinforcing inclined strut (12) is arranged between the left end of the horizontal ejector rod of the left II-shaped frame and the left upright rod of the left II-shaped frame; a clamping frame right reinforcing inclined supporting rod (13) is arranged between the right end of the horizontal ejector rod of the right II-shaped frame and the right upright rod of the right II-shaped frame.
5. The construction method of the cast-in-place concrete drain open trench according to claim 2, wherein after the left trench wall outer form (6), the left trench wall inner form (4), the right trench wall inner form (5) and the right trench wall outer form (7) are removed, backfilling work is performed between the left trench wall outer side and the left inner side slope of the drain trench (1) and between the right trench wall outer side and the right inner side slope of the drain trench (1).
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050007851A (en) * | 2003-07-11 | 2005-01-21 | 두산중공업 주식회사 | Drainage Construction Method |
| CN207003479U (en) * | 2017-07-05 | 2018-02-13 | 中建五局第三建设有限公司 | A kind of cast-in-place city integrated piping lane entirety formwork system |
| CN109853617A (en) * | 2019-01-21 | 2019-06-07 | 海门市帕源路桥建设有限公司 | A kind of suspension slidingtype bolt stretches that top is counter to push away metal embedded part and construction technology |
| CN209260671U (en) * | 2018-11-20 | 2019-08-16 | 吉安市烟草公司峡江分公司 | A kind of two-sided formwork erection steel formwork of cigarette shredded tobacco for water pipes road conveyance system |
| CN211973774U (en) * | 2020-02-08 | 2020-11-20 | 中国水利水电第十六工程局有限公司 | Reinforced drainage ditch pouring template fixing device |
| CN211973775U (en) * | 2020-02-08 | 2020-11-20 | 中国水利水电第十六工程局有限公司 | Drainage ditch pouring template fixing device |
| CN114439291A (en) * | 2022-01-25 | 2022-05-06 | 中铁三局集团建筑安装工程有限公司 | Column type inspection pit cast-in-place concrete track stand column and construction method |
| CN115045209A (en) * | 2022-07-20 | 2022-09-13 | 湖南华纬水电工程有限公司 | Double-cabin box culvert pouring device and construction method |
| CN218233146U (en) * | 2022-08-03 | 2023-01-06 | 中铁三局集团广东建设工程有限公司 | Supporting device for pouring drainage side ditch |
| CN115726450A (en) * | 2022-11-11 | 2023-03-03 | 中建筑港集团有限公司 | Quick formwork equipment in escape canal |
-
2023
- 2023-08-08 CN CN202310992401.9A patent/CN116695848A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050007851A (en) * | 2003-07-11 | 2005-01-21 | 두산중공업 주식회사 | Drainage Construction Method |
| CN207003479U (en) * | 2017-07-05 | 2018-02-13 | 中建五局第三建设有限公司 | A kind of cast-in-place city integrated piping lane entirety formwork system |
| CN209260671U (en) * | 2018-11-20 | 2019-08-16 | 吉安市烟草公司峡江分公司 | A kind of two-sided formwork erection steel formwork of cigarette shredded tobacco for water pipes road conveyance system |
| CN109853617A (en) * | 2019-01-21 | 2019-06-07 | 海门市帕源路桥建设有限公司 | A kind of suspension slidingtype bolt stretches that top is counter to push away metal embedded part and construction technology |
| CN211973774U (en) * | 2020-02-08 | 2020-11-20 | 中国水利水电第十六工程局有限公司 | Reinforced drainage ditch pouring template fixing device |
| CN211973775U (en) * | 2020-02-08 | 2020-11-20 | 中国水利水电第十六工程局有限公司 | Drainage ditch pouring template fixing device |
| CN114439291A (en) * | 2022-01-25 | 2022-05-06 | 中铁三局集团建筑安装工程有限公司 | Column type inspection pit cast-in-place concrete track stand column and construction method |
| CN115045209A (en) * | 2022-07-20 | 2022-09-13 | 湖南华纬水电工程有限公司 | Double-cabin box culvert pouring device and construction method |
| CN218233146U (en) * | 2022-08-03 | 2023-01-06 | 中铁三局集团广东建设工程有限公司 | Supporting device for pouring drainage side ditch |
| CN115726450A (en) * | 2022-11-11 | 2023-03-03 | 中建筑港集团有限公司 | Quick formwork equipment in escape canal |
Non-Patent Citations (1)
| Title |
|---|
| 赵文亭，关恒万: "排水涵洞支模技术的改进", 水力发电, no. 05, pages 40 - 42 * |
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