CN106988339A - Sandy gravel stratum piping lane construction technology - Google Patents
Sandy gravel stratum piping lane construction technology Download PDFInfo
- Publication number
- CN106988339A CN106988339A CN201710179655.3A CN201710179655A CN106988339A CN 106988339 A CN106988339 A CN 106988339A CN 201710179655 A CN201710179655 A CN 201710179655A CN 106988339 A CN106988339 A CN 106988339A
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- piping lane
- template
- concrete
- construction
- inwall
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Classifications
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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
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
-
- 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
Abstract
The invention discloses a kind of sandy gravel stratum piping lane construction technology, it follows the steps below construction：Piping lane external mold is constructed, and cushion block frame locator is placed in the piping lane foundation trench bottom excavated, and lifting is put into core pulling template and core pulling mould assembling locating support, adjusts and connect core pulling template and backfill core pulling template both sides, tamp piping lane concrete cushion；Piping lane internal model is constructed, and completes the waterstop between wallboard and bottom plate, tamps reinforced concrete floor, and lifting is put into inwall backform, in the both sides casting concrete of concrete casing, is extracted the core pulling template of both sides out, is acted inwall backform；Piping lane cast-in-place concrete cover plate is constructed, and is installed demoulding tank cover plate and outboard template, is poured and removed after outboard template.The purpose of this hair is to provide that a kind of technique is simple, the sandy gravel stratum piping lane construction technology that piping lane Forming Quality is good, construction cost is low, efficiency of construction is high.
Description
Technical field
Type of the present invention is related to piping lane construction field, more particularly to a kind of sandy gravel stratum piping lane construction technology.
Background technology
According to the minimum natural characteristic of gravel cohesive force, the underground pipe gallery foundation trench cubic metre of earth of sandy gravel stratum digs the slope system of fortune construction
Number is 1：1.2--1：Between 1.5, such as in the narrow area construction in city, traditional construction method need to be used, anchor pole whitewashes technology to shield
Slope reinforces to reduce sloping coefficient, to ensure safety in production and requisite quality.Traditional construction method construction costs is expensive, the duration
Restricted and specified tediously long by bank protection support process and traditional box culvert construction technology.Have a strong impact on construction speed and construction costs
It is high.
The content of the invention
According to above technological deficiency, the present invention provides a kind of sandy gravel stratum piping lane construction technology, it is therefore intended that when reducing construction
Between and reduce construction cost.
A kind of sandy gravel stratum piping lane construction technology, follows the steps below construction：
Excavate to form piping lane foundation trench 32 in two times in gravel overburden layer, using the side for carrying out piping lane external mold construction when excavating
Method, carries out the construction of piping lane internal model and the construction of piping lane cover plate successively, the coagulation that several are fastenedly connected in the interior shaping of piping lane foundation trench 32
Native casing 22, forms sandy gravel stratum piping lane；
The construction of wherein concrete casing 22 comprises the following steps：
Step 1: in the bottom of the piping lane foundation trench 32 laying cement stabilizing layer 4 excavated, and placed on cement stabilizing layer 4
Concrete spacer pad 3；
Step 2: the lifting of core pulling template 12 is put into piping lane foundation trench 32, locating support 11 is assembled by core pulling mould and fixed
On concrete spacer pad 3；Flexible positioning support 13 is installed at the center of core pulling template 12 of both sides, and locating support suitable for reading is installed at top
Gear 7, the height of adjustment core pulling template 12 connects adjacent core pulling template 12 to connect steel bushing 14 by template behind same level face；Will
Core pulling template 12 is backfilled to first scope of operation 5 with the adjacent inwall space of piping lane foundation trench 32 by gravel, takes out the assembling of core pulling mould
Locating support 11；Concrete cushion 16 is laid in the space of cement stabilizing layer 4 and the formation of core pulling template 12；
Step 3: the colligation of reinforcing bar 37 to form piping lane tank floor is made on the surface of the concrete cushion 16, and
The colligation marginal position of reinforcing bar 37 in bottom surface vertically makes the colligation of reinforcing bar 37 to form side, then to the bottom surface
In the colligation of reinforcing bar 37 casting concrete and solidify form reinforced concrete floor 18；Steel in reinforced concrete floor 18 Yu side
The construction of waterstop 17 is completed between muscle 37；
Step 4: removing positioning spacer 7 suitable for reading and flexible positioning support 13, inwall backform 20 is lifted into the reinforcing bar into side
In 37 spaces formed with reinforced concrete floor 18；Width control system positioning strut rail 19 is installed at the top of inwall backform 20, it is interior
The vertical direction of wall backform 20 installs expansion joint positioner G-1；It is empty in the both sides of core pulling template 12 and the formation of inwall backform 20
Interior casting concrete, forms the concrete casing 22 of side, while extracting core pulling template 12 out；Finally remove width control system positioning
Strut rail 19 and template connection steel bushing 14, act inwall backform 20；
Step 5: installing lift adjustment rack template 26 on reinforced concrete floor 18 and adjusting its height, make lifting
The top of adjusting bracket template 26 is same level with the piping lane inner roof wall size in piping lane design drawing；In lift adjustment support
Collision avoiding caster 25 is installed at the two ends of template 26, collision avoiding caster 25 is withstood in the both sides inwall of concrete casing 22；Calking is stretched into drawing
Bar 24 is arranged in the form removal technology groove 36 of lift adjustment rack template 26, and stretching pull bar 24 by calking adjusts lift adjustment support
Template 26, makes the both sides inwall of itself and concrete casing 22 mutually coincide；
Step 6: install demoulding tank cover plate 27, placed at the top of piping lane foundation trench 32 reinforcing bar 37 and with the reinforcing bar colligation of both sides；
After outboard template 29 is installed in the outside of concrete casing 22 of both sides, pass through outboard template 29 and the shape of lift adjustment rack template 26
Into space in, casting concrete, formed piping lane at the top of concrete casing 22；Outboard template 29 and demoulding groove lid are removed afterwards
Plate 27, lift adjustment rack template 26 is removed to next job position by big stroke jack 23.
Preferably, the earthing layer depth that the piping lane foundation trench 32 digs fortune for the first time is downward to drawing from natural ground 200
12-13cm is as cutting depth absolute altitude under the horizontal alignment of the piping lane cover plate bottom of demarcation, and width is according to piping lane casing drawing mark
Fixed width respectively overs 1.5-2 meters to both sides, first scope of operation 5 that this area is constructed as piping lane casing.
Preferably, the bed course bottom absolute altitude demarcated of the second layer cutting depth of the piping lane foundation trench 32 to piping lane drawing with
On, second scope of operation 6 that this face is constructed as piping lane casing；The excavation width of second scope of operation 6 is casing outside dimension to two
10cm is respectively overed in side, and sloping coefficient is depending on live gravel caking ability size.
Preferably, it is optimal that the excavation length of piping lane foundation trench 32, which is 1.2-1.3 times of piping lane casing length,.
Preferably, the concrete cushion 16, reinforced concrete floor 18, concrete casing 22 are mixed by hand pulling type
Solidifying soil vibration beam 28 carries out concrete pouring construction.
Preferably, 20 1 groups of the inwall backform is 8*6m=48m；Construction area is entered by crane lifting, side is completed
Inwall backform 20 is risen after 4 hours and acts inwall top in 30cm, 5-6 hours by the concrete pouring construction of concrete casing 22
Mould 20.
Preferably, 26 1 groups of the lift adjustment rack template is 8*6m=48m.
In the sandy gravel stratum piping lane construction technology that the present invention is provided, by using core pulling template, core pulling mould assemble locating support,
Flexible positioning support, inwall backform, lift adjustment rack template and outboard template etc. by simple and quick mounting process,
Realize following technology and construction advantage：
1st, firmly the characteristics of fast accurate, install with simple and speed of application is 18-20 times of conventional method, it is more main
What is wanted is that formwork is all completed by common civilian worker.Thoroughly broken away from because mud carpenter is in short supply and the bottleneck of engineering constraint progress.Together
Shi Zhimo manpower consumption is below the 6-8% of conventional method formwork, significantly reduces construction costs, the labour of unit in charge of construction
Nervous problem is also thoroughly eliminated；Ensure that in technique safety in production with it is superior in quality, be at present various underground pipe galleries apply
Work efficiency rate is most fast, and quality, precision controlling are best, the minimum construction technology technology of construction cost.
2nd, template is full steel structure, and cavity dimension is precisely stable and firm, continuous formwork assemble and disassemble 500-800 times within not
Deformation, it is lossless.Substantial amounts of branch mold materials can be saved by being compared with traditional formwork support process.Construction cost is greatly reduced.
3rd, the box mould of backform because size precisely, monolithic stability, intensity, rigidity are produced when fully meeting casting and compacting of concrete
Impulsive force and pressure, thoroughly effected a radical cure the accident potential of spillage and quick-fried mould.Through field measurement, there is the electric power that backform technology is constructed
Each portion's scale error such as top surface, ground, metope, height, the width of piping lane is within 2-4mm good criteria.Concrete table
Face aesthetic finish has reached the fine quality of clear-water concrete, is that traditional construction method is unable to reach.
4th, built suitable for the buried concrete box culvert class that heavy excavation needed for urban infrastructure is constructed, such as inverted-siphon, list
Road electric power pipe trench, rainwater pipe trench, sewage pipe trench etc..And the pipe gallery for merging above-mentioned several functions.16 meters multiply 5
The following specification of rice, combination is arbitrarily changed according to functional requirement.
5th, concrete pouring construction technique is carried out than traditional concreting by using hand pulling type vibratory concrete beam
Construction technology improves 92% operating efficiency.
Brief description of the drawings
Fig. 1 is that the piping lane foundation trench for the sandy gravel stratum piping lane construction technology that the present invention is provided excavates structural representation；
Fig. 2 is that the piping lane foundation trench for the sandy gravel stratum piping lane construction technology that the present invention is provided excavates the structural representation of A-A section views；
Fig. 3 is the piping lane core pulling model sheetinstallat structural representation for the sandy gravel stratum piping lane construction technology that the present invention is provided；
Fig. 4 is that the structure of the piping lane core pulling model sheetinstallat B-B section views for the sandy gravel stratum piping lane construction technology that the present invention is provided is shown
It is intended to；
Fig. 5 is the slope gap fill structure schematic diagram of the piping lane for the sandy gravel stratum piping lane construction technology that the present invention is provided；
Fig. 6 is that the structure of C-C section views is filled in the slope gap of the piping lane for the sandy gravel stratum piping lane construction technology that the present invention is provided
Schematic diagram；
Fig. 7 is the concrete cushion pouring structure schematic diagram of the piping lane for the sandy gravel stratum piping lane construction technology that the present invention is provided；
Fig. 8 is that the concrete cushion of the piping lane for the sandy gravel stratum piping lane construction technology that the present invention is provided pours the knot of D-D section views
Structure schematic diagram；
Fig. 9 is the piping lane sealing belt construction schematic diagram for the sandy gravel stratum piping lane construction technology that the present invention is provided；
Figure 10 is the structural representation of the piping lane sealing belt construction E-E section views for the sandy gravel stratum piping lane construction technology that the present invention is provided
Figure；
Figure 11 is the piping lane reinforced concrete floor construction schematic diagram for the sandy gravel stratum piping lane construction technology that the present invention is provided；
Figure 12 is the piping lane inwall backform installation schematic diagram for the sandy gravel stratum piping lane construction technology that the present invention is provided；
Figure 13 is showing for the piping lane inwall backform installation G-G section views for the sandy gravel stratum piping lane construction technology that the present invention is provided
It is intended to；
Figure 14 is the expansion joint positioning device structure schematic diagram for the sandy gravel stratum piping lane construction technology that the present invention is provided；
Figure 15 is the piping lane casing concreting schematic diagram for the sandy gravel stratum piping lane construction technology that the present invention is provided；
Figure 16 is that the core pulling template of the piping lane for the sandy gravel stratum piping lane construction technology that the present invention is provided extracts construction schematic diagram out；
Figure 17 is that the piping lane inwall backform for the sandy gravel stratum piping lane construction technology that the present invention is provided goes out schematic diagram of constructing；
Figure 18 is the lift adjustment rack template scheme of installation for the sandy gravel stratum piping lane construction technology that the present invention is provided；
Figure 19 is the demoulding tank cover plate construction schematic diagram for the sandy gravel stratum piping lane construction technology that the present invention is provided；
Figure 20 is the outboard template scheme of installation of the piping lane for the sandy gravel stratum piping lane construction technology that the present invention is provided；
Figure 21 is the dismounting schematic diagram of the lift adjustment rack template for the sandy gravel stratum piping lane construction technology that the present invention is provided；
Figure 22 is the piping lane as-built drawing for the sandy gravel stratum piping lane construction technology that the present invention is provided.
Wherein, 1- sandy gravel stratums, 2- cushion block frame locators, 3- concrete spacer pads, 4- soil cement stabilized zones, 5- first
The scope of operation, the scope of operations of 6- second, 100- digging machines, 200- nature ground elevations, 7- positioning spacers suitable for reading, 8- connecting holes, 9- liftings
Hole, 10- level height adjusting meanss, 11- core pullings mould assembling locating support, 12- core pulling templates, the flexible positioning supports of 13-, 14-
Template connects steel bushing, 15- core pulling template level height adjusting meanss, 16- concrete cushions, 17- waterstops, 18- reinforced concretes
Native bottom plate, G-1- expansion joints positioner, 19- width control systems positioning strut rail, 20- inwall backforms, 21- concrete equiblibrium mass distribution dress
Put, 22- concrete casings, the big stroke jack of 23-, 24- calkings stretch pull bar, 25- collision avoiding casters, 26- lift adjustment support moulds
Plate, 27- demoulding tank cover plates, 28- hand pulling type vibratory concrete beams, 29- outboard templates, 30- outboard template positioners, 31- is yellow
Oil cap, 32- piping lane foundation trenches, 35- slopes gap, 36- form removal technology grooves, 37- reinforcing bars.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.In addition, invention described below
As long as involved technical characteristic does not constitute conflict and can just be combined with each other each other in different embodiments.
According to Fig. 1-2 2, excavate to form piping lane foundation trench 32 in two times in gravel overburden layer, carried out using when excavating
The method of piping lane external mold construction, carries out the construction of piping lane internal model and the construction of piping lane cover plate, shaping is some in piping lane foundation trench 32 successively
The individual concrete casing 22 being fastenedly connected, forms sandy gravel stratum piping lane；
The construction of wherein concrete casing 22 comprises the following steps：
Step 1: in the bottom of the piping lane foundation trench 32 laying cement stabilizing layer 4 excavated, and placed on cement stabilizing layer 4
Concrete spacer pad 3；
Step 2: the lifting of core pulling template 12 is put into piping lane foundation trench 32, locating support 11 is assembled by core pulling mould and fixed
On concrete spacer pad 3；Flexible positioning support 13 is installed at the center of core pulling template 12 of both sides, and locating support suitable for reading is installed at top
Gear 7, the height of adjustment core pulling template 12 connects adjacent core pulling template 12 to connect steel bushing 14 by template behind same level face；Will
Core pulling template 12 is backfilled to first scope of operation 5 with the adjacent inwall space of piping lane foundation trench 32 by gravel, takes out the assembling of core pulling mould
Locating support 11；Concrete cushion 16 is laid in the space of cement stabilizing layer 4 and the formation of core pulling template 12；
Step 3: the colligation of reinforcing bar 37 to form piping lane tank floor is made on the surface of the concrete cushion 16, and
The colligation marginal position of reinforcing bar 37 in bottom surface vertically makes the colligation of reinforcing bar 37 to form side, then to the bottom surface
In the colligation of reinforcing bar 37 casting concrete and solidify form reinforced concrete floor 18；Steel in reinforced concrete floor 18 Yu side
The construction of waterstop 17 is completed between muscle 37；
Step 4: removing positioning spacer 7 suitable for reading and flexible positioning support 13, inwall backform 20 is lifted into the reinforcing bar into side
In 37 spaces formed with reinforced concrete floor 18；Width control system positioning strut rail 19 is installed at the top of inwall backform 20, it is interior
The vertical direction of wall backform 20 installs expansion joint positioner G-1；It is empty in the both sides of core pulling template 12 and the formation of inwall backform 20
Interior casting concrete, forms the concrete casing 22 of side, while extracting core pulling template 12 out；Finally remove width control system positioning
Strut rail 19 and template connection steel bushing 14, act inwall backform 20；
Step 5: installing lift adjustment rack template 26 on reinforced concrete floor 18 and adjusting its height, make lifting
The top of adjusting bracket template 26 is same level with the piping lane inner roof wall size in piping lane design drawing；In lift adjustment support
Collision avoiding caster 25 is installed at the two ends of template 26, collision avoiding caster 25 is withstood in the both sides inwall of concrete casing 22；Calking is stretched into drawing
Bar 24 is arranged in the form removal technology groove 36 of lift adjustment rack template 26, and stretching pull bar 24 by calking adjusts lift adjustment support
Template 26, makes the both sides inwall of itself and concrete casing 22 mutually coincide；
Step 6: install demoulding tank cover plate 27, placed at the top of piping lane foundation trench 32 reinforcing bar 37 and with the reinforcing bar colligation of both sides；
After outboard template 29 is installed in the outside of concrete casing 22 of both sides, pass through outboard template 29 and the shape of lift adjustment rack template 26
Into space in, casting concrete, formed piping lane at the top of concrete casing 22；Outboard template 29 and demoulding groove lid are removed afterwards
Plate 27, lift adjustment rack template 26 is removed to next job position by big stroke jack 23.
According to Fig. 1-2, the external mold construction technology of piping lane carries out piping lane base in two times by digging machine 100 in sandy gravel stratum 1
The excavation of groove 32, the gravel earthing layer depth that the piping lane foundation trench 32 digs fortune for the first time is downward to drawing mark from natural ground 200
12-13cm is as cutting depth absolute altitude under the horizontal alignment of fixed piping lane cover plate bottom, and width is demarcated according to piping lane casing drawing
Width 1.5-2 meters are respectively overed to both sides, first scope of operation 5 that this area is constructed as piping lane casing.
Slope retaining between the natural scope of operation of ground 200 to the first 5, overburden layer within 2 meters can natural discharging slope, 2
The box template support of side slope more than rice.
It is more than the bed course bottom absolute altitude that the second layer cutting depth of the piping lane foundation trench 32 to piping lane drawing is demarcated, this face conduct
Second scope of operation 6 of piping lane casing construction；The excavation width of second scope of operation 6 is that casing outside dimension is respectively overed to both sides
10cm, sloping coefficient is depending on live gravel caking ability size.
It is optimal that the excavation length of piping lane foundation trench 32, which is 1.2-1.3 times of piping lane casing length,.
According to Fig. 2-3, one layer of 30cm cement stabilizing layer 4 is poured with cement in second scope of operation 6, it is steady in cement
Concrete spacer pad 3 is placed in given layer 4, it is by using cushion block frame locator 2 that its is spacing and take out cushion block after fixing
The core pulling template 12 assembled lifting, is put into piping lane foundation trench 32, by taking out by frame locator 2 by hole for hoist 9 with loop wheel machine
Core assembling locating support 11 is fixed on concrete spacer pad 3；
Flexible positioning support 13 is installed at the center of core pulling template 12 of both sides, and top installs locating support gear 7 suitable for reading, utilizes core pulling
Level height adjusting means 10 adjusts the height of core pulling template 12 to same level in template 12, by adjacent core pulling template
12 connect steel bushing 14 by connecting hole 8 with template connects；According to Fig. 5-6, by core pulling template 12 and adjacent piping lane foundation trench
32 inwall spaces are slope gap 35, and first scope of operation 5 is backfilled to by gravel, take out core pulling mould assembling locating support 11；
According to Fig. 7-8, with hand pulling type vibratory concrete beam 28 in cement stabilizing layer 4 and the sky of the formation of core pulling template 12
In laying concrete cushion 16, its concrete cushion 16 is tamped, the smooth requirement that fulfils assignment.
In the level height adjusting means 10, by the butter lid 31 of setting, level height adjusting means 10 can be entered
Row lubricant is added, and makes the smooth work in operation process of level height adjusting means 10.
According to Fig. 9-11, the internal model construction technology of piping lane makes to form pipe on the surface of the concrete cushion 16
The colligation of reinforcing bar 37 of corridor tank floor, and the colligation marginal position of reinforcing bar 37 in bottom surface vertically make to form side
The colligation of reinforcing bar 37, then to casting concrete in the colligation of reinforcing bar 37 of the bottom surface and solidify form reinforced concrete floor 18；
With the construction technology of hand pulling type vibratory concrete beam 28 construction piping lane reinforced concrete floor 18.Now, reinforced concrete floor 18
Vertical equity height error is 3-5mm.Applying for waterstop 17 is completed between the reinforcing bar 37 of reinforced concrete floor 18 and side
Work；
According to Figure 12-14, remove positioning spacer 7 suitable for reading and flexible positioning support 13, by inwall backform 20 lift into
In the space that the reinforcing bar 37 of side is formed with reinforced concrete floor 18, the specification of inwall backform 20 is 8*6m=48m；On inwall top
Width control system positioning strut rail 19 is installed at the top of mould 20, and the vertical direction according to drawing requirement in inwall backform 20 installs expansion joint
Positioner G-1；By by bar shaped mould, sponge plank and U-shaped card self-drilling connection is integral becomes embedded flexible
Positioning mould is stitched, during expansion joint construction operation is carried out, is vertically mounted on piping lane casing and carries out operation, after the end of job i.e.
Can obtain that width is consistent, depth is consistent, surface is smooth, vertical standardized expansion joint and sealing groove.
According to Figure 15-17, casting concrete, shape in the both sides space of core pulling template 12 and the formation of inwall backform 20
Into the concrete casing 22 of side, poured by concrete equiblibrium mass distribution device 21 and concrete is poured into 22 liang of concrete casing
Extract core pulling template 12 while the top plan of side out；Width control system positioning strut rail 19 and template connection steel bushing 14 are finally removed,
Inwall backform 20 is risen 30cm by concreting after after 4 hours；Act inwall backform 20 in 5-6 hours, that is, complete in piping lane
Mould is constructed.
According to Figure 18, piping lane cover plate construction technology installs lift adjustment support mould on reinforced concrete floor 18
26 1 groups of plate, specification is 8*6m=48m；Its height is adjusted, makes top and the piping lane design drawing of lift adjustment rack template 26
In piping lane inner roof wall size be same level, i.e. layout design piping lane top water horizontal line；In lift adjustment rack template 26
Collision avoiding caster 25 is installed at two ends, collision avoiding caster 25 is withstood in the both sides inwall of concrete casing 22；Calking is stretched into pull bar 24 to pacify
In the form removal technology groove 36 of lift adjustment rack template 26, fastening lift adjustment rack template 26 and calking stretch pull bar 24
Connecting screw, stretches pull bar 24 by calking and adjusts lift adjustment rack template 26, makes its both sides inwall with concrete casing 22
Mutually it coincide, the monolithic stability degree of template, intensity is more than the impulsive force produced during casting concrete, do not leaked during casting concrete
Slurry.
According to Figure 19-22, demoulding tank cover plate 27 is installed, placed at the top of piping lane foundation trench 32 reinforcing bar 37 and with both sides
Reinforcing bar colligation；Outboard template 29 is installed in the outside of concrete casing 22 of both sides, wanting for expansion joint length is placed by layout design
Ask, outboard template positioner 30 is installed in the both sides of lift adjustment rack template 26；Pass through outboard template 29 and lift adjustment
In the space of the formation of rack template 26, casting concrete, the concrete casing 22 formed at the top of piping lane；Pass through hand pulling type concrete
The coagulation rammed earth poured, the removal demoulding screw of tank cover plate 2727, removal are fastened lift adjustment rack template 26 by walking beam 28
With the connecting screw between outboard template 29, lift adjustment rack template 26 is put down with big stroke jack 23, and will be by rising-falling tone
Section rack template 26 and outboard template 29 move to next job position.
In the sandy gravel stratum piping lane construction technology that the present invention is provided, by using core pulling template, core pulling mould assemble locating support,
Flexible positioning support, inwall backform, lift adjustment rack template and outboard template etc. by simple and quick mounting process,
Realize following technology and construction advantage：
1st, firmly the characteristics of fast accurate, install with simple and speed of application is 18-20 times of conventional method, it is more main
What is wanted is that formwork is all completed by common civilian worker.Thoroughly broken away from because mud carpenter is in short supply and the bottleneck of engineering constraint progress.Together
Shi Zhimo manpower consumption is below the 6-8% of conventional method formwork, significantly reduces construction costs, the labour of unit in charge of construction
Nervous problem is also thoroughly eliminated；Ensure that in technique safety in production with it is superior in quality, be at present various underground pipe galleries apply
Work efficiency rate is most fast, and quality, precision controlling are best, the minimum construction technology technology of construction cost.
2nd, template is full steel structure, and cavity dimension is precisely stable and firm, continuous formwork assemble and disassemble 500-800 times within not
Deformation, it is lossless.Substantial amounts of branch mold materials can be saved by being compared with traditional formwork support process.Construction cost is greatly reduced.
3rd, the box mould of backform because size precisely, monolithic stability, intensity, rigidity are produced when fully meeting casting and compacting of concrete
Impulsive force and pressure, thoroughly effected a radical cure the accident potential of spillage and quick-fried mould.Through field measurement, there is the electric power that backform technology is constructed
Each portion's scale error such as top surface, ground, metope, height, the width of piping lane is within 2-4mm good criteria.Concrete table
Face aesthetic finish has reached the fine quality of clear-water concrete, is that traditional construction method is unable to reach.
4th, built suitable for the buried concrete box culvert class that heavy excavation needed for urban infrastructure is constructed, such as inverted-siphon, list
Road electric power pipe trench, rainwater pipe trench, sewage pipe trench etc..And the pipe gallery for merging above-mentioned several functions.16 meters multiply 5
The following specification of rice, combination is arbitrarily changed according to functional requirement.
5th, concrete pouring construction technique is carried out than traditional concreting by using hand pulling type vibratory concrete beam
Construction technology improves 92% operating efficiency.
Claims (7)
1. a kind of sandy gravel stratum piping lane construction technology, it is characterised in that follow the steps below construction：
Excavate to form piping lane foundation trench (32) in two times in gravel overburden layer, using the side for carrying out piping lane external mold construction when excavating
Method, carries out piping lane internal model and constructs and the construction of piping lane cover plate successively, and what in the interior shaping of piping lane foundation trench (32), several were fastenedly connected mixes
Solidifying soil casing (22), forms sandy gravel stratum piping lane；
The construction of wherein concrete casing (22) comprises the following steps：
Step 1: being put in piping lane foundation trench (32) bottom laying cement stabilizing layer (4) excavated, and on cement stabilizing layer (4)
Put concrete spacer pad (3)；
Step 2: core pulling template (12) lifting is put into piping lane foundation trench (32), it is solid to assemble locating support (11) by core pulling mould
It is scheduled on concrete spacer pad (3)；Flexible positioning support (13) is installed at core pulling template (12) center of both sides, and top is installed
Mouth positioning spacer (7), the height of adjustment core pulling template (12) is taken out to connect steel bushing (14) by template behind same level face by adjacent
Core mold plate (12) is connected；Core pulling template (12) and adjacent piping lane foundation trench (32) inwall space are backfilled to the first work by gravel
Industry face 5, takes out core pulling mould assembling locating support (11)；In cement stabilizing layer (4) and the space Nei Pu of core pulling template (12) formation
If concrete cushion (16)；
Step 3: reinforcing bar (37) colligation to form piping lane tank floor is made on the surface of the concrete cushion (16), and
Reinforcing bar (37) colligation marginal position in bottom surface vertically makes reinforcing bar (37) colligation to form side, then to the bottom
In reinforcing bar (37) colligation in face casting concrete and solidify form reinforced concrete floor (18)；In reinforced concrete floor (18)
The construction of waterstop (17) is completed between the reinforcing bar (37) of side；
Step 4: removing positioning spacer (7) suitable for reading and flexible positioning support (13), inwall backform (20) is lifted to the steel into side
In the space that muscle (37) is formed with reinforced concrete floor (18)；Width control system positioning is installed at the top of inwall backform (20) horizontal
Keep off (19), the vertical direction of inwall backform (20) installs expansion joint positioner (G-1)；In core pulling template (12) and inwall backform
(20) casting concrete in the both sides space formed, forms the concrete casing (22) of side, while extracting core pulling template (12) out；
Width control system positioning strut rail (19) and template connection steel bushing (14) are finally removed, acts inwall backform (20)；
Step 5: installing lift adjustment rack template (26) on reinforced concrete floor (18) and adjusting its height, make lifting
The top of adjusting bracket template (26) is same level with the piping lane inner roof wall size in piping lane design drawing；In lift adjustment branch
Collision avoiding caster (25) is installed at frame template (26) two ends, collision avoiding caster (25) is withstood in the both sides inwall of concrete casing (22)；
Calking is stretched into pull bar (24) in the form removal technology groove (36) of lift adjustment rack template (26), pull bar is stretched by calking
(24) regulation lift adjustment rack template (26), makes the both sides inwall of itself and concrete casing (22) mutually coincide；
Step 6: installing demoulding tank cover plate (27), reinforcing bar (37) is placed at the top of piping lane foundation trench (32) and is tied up with the reinforcing bar of both sides
Prick；After outboard template (29) is installed on the outside of the concrete casing (22) of both sides, pass through outboard template (29) and lift adjustment branch
In the space of frame template (26) formation, casting concrete, the concrete casing (22) formed at the top of piping lane；Outer side mold is removed afterwards
Plate (29) and demoulding tank cover plate (27), lift adjustment rack template (26) is removed to next operation by big stroke jack (23)
Position.
2. sandy gravel stratum piping lane construction technology according to claim 1, it is characterised in that the piping lane foundation trench (32) is for the first time
Dig 12- under the horizontal alignment of piping lane cover plate bottom that the earthing layer depth transported is demarcated downwards from natural ground (200) to drawing
13cm is as cutting depth absolute altitude, and the width that width is demarcated according to piping lane casing drawing respectively overs 1.5-2 meters to both sides, this area
First scope of operation (5) constructed as piping lane casing.
3. sandy gravel stratum piping lane construction technology according to claim 1, it is characterised in that the second of the piping lane foundation trench (32)
It is more than the bed course bottom absolute altitude that layer cutting depth to piping lane drawing is demarcated, second scope of operation (6) that this face is constructed as piping lane casing；
The excavation width of second scope of operation (6) is that casing outside dimension respectively overs 10cm to both sides, and sloping coefficient regards live gravel and bonded
Spend depending on size.
4. sandy gravel stratum piping lane construction technology according to claim 1, it is characterised in that the piping lane foundation trench (32) excavates length
It is optimal that degree, which is 1.2-1.3 times of piping lane casing length,.
5. sandy gravel stratum piping lane construction technology according to claim 1, it is characterised in that the concrete cushion (16), steel
Reinforced concrete bottom plate (18), concrete casing (22) carry out concreting by hand pulling type vibratory concrete beam (28) and applied
Work.
6. sandy gravel stratum piping lane construction technology according to claim 1, it is characterised in that (20) one groups of the inwall backform is
8*6m=48m；Construction area is entered by crane lifting, the concrete pouring construction of side concrete casing (22) is completed after 4 hours,
Inwall backform (20) is risen and acts inwall backform (20) in 30cm, 5-6 hours.
7. sandy gravel stratum piping lane construction technology according to claim 1, it is characterised in that the lift adjustment rack template
(26) one groups are 8*6m=48m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710179655.3A CN106988339B (en) | 2017-03-23 | 2017-03-23 | Sandy gravel stratum piping lane construction technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710179655.3A CN106988339B (en) | 2017-03-23 | 2017-03-23 | Sandy gravel stratum piping lane construction technology |
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| CN106988339B CN106988339B (en) | 2018-11-27 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107718243A (en) * | 2017-11-17 | 2018-02-23 | 九州职业技术学院 | A kind of assembled underground pipe gallery hypomere producing device and preparation method |
| CN108755753A (en) * | 2018-05-25 | 2018-11-06 | 中国十七冶集团有限公司 | A kind of Pipe rack and its construction method of Collapsible Loess District and Soft Soil |
| CN109083193A (en) * | 2018-09-01 | 2018-12-25 | 四川省场道工程有限公司 | Airport pipe gallery standard digital template construction method |
| CN112627539A (en) * | 2020-12-09 | 2021-04-09 | 中国葛洲坝集团第一工程有限公司 | Four-hole inverted siphon top plate double-layer steel bar lifting, positioning and fixing device and construction method |
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| KR20020089689A (en) * | 2001-05-23 | 2002-11-30 | 주식회사유신코퍼레이션 | The method for carrying out of underground structure object using a fiberglass reinforced plastics and a hydraulic jack |
| CN105220626A (en) * | 2015-10-27 | 2016-01-06 | 安徽水安建设集团股份有限公司 | Steel form device and the construction method that combines with outer steel mould plate thereof in a kind of self-propelled |
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2017
- 2017-03-23 CN CN201710179655.3A patent/CN106988339B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20020089689A (en) * | 2001-05-23 | 2002-11-30 | 주식회사유신코퍼레이션 | The method for carrying out of underground structure object using a fiberglass reinforced plastics and a hydraulic jack |
| CN105220626A (en) * | 2015-10-27 | 2016-01-06 | 安徽水安建设集团股份有限公司 | Steel form device and the construction method that combines with outer steel mould plate thereof in a kind of self-propelled |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107718243A (en) * | 2017-11-17 | 2018-02-23 | 九州职业技术学院 | A kind of assembled underground pipe gallery hypomere producing device and preparation method |
| CN108755753A (en) * | 2018-05-25 | 2018-11-06 | 中国十七冶集团有限公司 | A kind of Pipe rack and its construction method of Collapsible Loess District and Soft Soil |
| CN109083193A (en) * | 2018-09-01 | 2018-12-25 | 四川省场道工程有限公司 | Airport pipe gallery standard digital template construction method |
| CN112627539A (en) * | 2020-12-09 | 2021-04-09 | 中国葛洲坝集团第一工程有限公司 | Four-hole inverted siphon top plate double-layer steel bar lifting, positioning and fixing device and construction method |
| CN112627539B (en) * | 2020-12-09 | 2022-09-20 | 中国葛洲坝集团第一工程有限公司 | Four-hole inverted siphon top plate double-layer steel bar lifting, positioning and fixing device and construction method |
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| Publication number | Publication date |
|---|---|
| CN106988339B (en) | 2018-11-27 |
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