CN109610665A - Oil depot assembled fire wall construction method - Google Patents

Oil depot assembled fire wall construction method Download PDF

Info

Publication number
CN109610665A
CN109610665A CN201811559140.7A CN201811559140A CN109610665A CN 109610665 A CN109610665 A CN 109610665A CN 201811559140 A CN201811559140 A CN 201811559140A CN 109610665 A CN109610665 A CN 109610665A
Authority
CN
China
Prior art keywords
fire
construction
component
assembled
bar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811559140.7A
Other languages
Chinese (zh)
Inventor
肖冠军
于涛林
冯会江
刘峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum Engineering and Construction Corp North China Co
Original Assignee
China Petroleum Engineering and Construction Corp North China Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Petroleum Engineering and Construction Corp North China Co filed Critical China Petroleum Engineering and Construction Corp North China Co
Priority to CN201811559140.7A priority Critical patent/CN109610665A/en
Publication of CN109610665A publication Critical patent/CN109610665A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/94Protection against other undesired influences or dangers against fire
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C2/00Fire prevention or containment
    • A62C2/06Physical fire-barriers
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/06Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work

Abstract

The invention discloses a kind of oil depot assembled fire wall construction methods, mainly include prefabricated place floor treatment, assembled fire wall PC element precast, foundation trench excavations, cushion construction, prefabricated components are had bad luck, fire wall PC lifting component is in place, PC part wet connection, expansion joint processing, separation levee interaction, the construction of fire wall fireproof coating, examination.Wherein the preparation of fire wall PC component includes following below scheme, template needed for customizing prefabricated fire wall PC component, steel bar meter, basis ground template die and closure plate mould is assembled, horizontal bar wears muscle, longitudinal reinforcement binding, reserved, installation of embedded parts, positioning bar and support installation, envelope mould reinforcings, concreting, side form and closure plate are removed and conserved.Continuity is realized in assembled fire wall construction method of the invention, the standardization of realization production object, building course, and promotion constructs amount of substance, shortens the construction period, reduces weather and manually to the influence of construction quality, and reduction site operation pollution.

Description

Oil depot assembled fire wall construction method
Technical field
The invention belongs to oil depot structures fields, and in particular to a kind of oil depot assembled fire wall construction method.
Background technique
In current oil depot engineering project construction, the construction of fire wall uses always cast-in-place mode, and traditional process is foot Hand cradle is set up, and -- -- template formwork -- concreting -- demoulding, wherein scaffold is both needed to complete along fire wall with template for reinforcing bar binding Long setting, heavy workload are long in time limit;The mode of cast in situs simultaneously is influenced very big, operation by weather and personnel's operation Journey is discontinuous and quality control there are larger difficulty;There is also high altitude operation risks simultaneously, jeopardize the constructions such as field worker safety Risk.
Summary of the invention
The object of the present invention is to provide a kind of oil depot assembled fire wall construction method and the beam prefabricated methods of fire wall, with solution Certainly heavy workload present in the construction of current fire wall, long in time limit, operation process be discontinuous and quality control there are larger difficulty And the problems such as there are construction risks.
Technical scheme is as follows:
Oil depot assembled fire wall construction method, the assembled fire wall are made of several segments fire wall PC component, institute It states and is attached between fire wall PC component by post-cast strip or expansion joint;Assembled fire wall Specific construction process include with Lower step: prefabricated place floor treatment, assembled fire wall PC element precast, foundation trench excavation, cushion construction, prefabricated components fall Fortune, fire wall PC lifting component are in place, PC part wet connection, expansion joint is handled, separation levee is interactive, the construction of fire wall fireproof coating.
Further, the assembled fire wall PC element precast step includes following below scheme:
(1) template needed for customizing prefabricated fire wall PC component:
Templating species include: standard PC precast-concrete form, anisotropic wall rigging and mating attached closure plate mould, wherein Standard PC precast-concrete form include basis ground template die, toe of wall side seal mould, toe of wall cover board mould, wall heel side seal mould, wall heel cover board mould, Fire wall side seal mould;;
(2) suitable bar diameter and arrangement spacing steel bar meter: are selected according to design requirement;
(3) basis ground template die and closure plate mould are assembled: detecting basic bed die plate flatness, meet construction requirement, two sides are prevented Fiery dike closure plate is supported on bed die, is fixed;
(4) horizontal bar wears muscle, specifically includes step in detail below: to post-cast strip two sides fire wall PC component, reinforcing bar is from one End penetrates, and the other end is pierced by, and both ends protruded length meets the post-cast strip lap of splice and requires and be not less than 800mm, meanwhile, to all Exposed steel bar is handled using PVC poling;Construction joint two sides fire wall PC component, horizontal bar utilize prefabricated section two sides longitudinal reinforcement Label positions, then both ends while binding and fixing;Horizontal bar two sides hook length meet anchoring require and around steel plate for sealing water it is recessed Slot;
(5) longitudinal reinforcement is bound: after the completion of horizontal bar wears muscle, carry out the short muscle of fire wall longitudinal rib and basis positioning and Bind work;And the pre-buried lifting lug in lower part is overlapped in wall top longitudinal rib;
(6) it reserves, installation of embedded parts: according to construction requirement, reinforcing bar at reserving hole being cut off or bending, and to it Surrounding uses steel reinforcing;Embedded part is securely welded in adjacent fire wall joist simultaneously;
(7) positioning bar and support installation: bending deformation in plate body when to prevent formwork reinforcement welds branch in wall steel bar on the net Support;In the backform intersection that wall side form and toe of wall, wall are called in person, spacer bar is set.
(8) envelope mould is reinforced: being carried out mode locking reinforcing to wall, is carried out to toe of wall bed die and toe of wall cover board mould solid to tensing;
(9) concreting: progress wall part pours after first carrying out foundation pouring construction, and wall pours completion Afterwards, top face work is carried out;
(10) side form and closure plate are removed: after having poured concrete strength and having reached prescribed strength requirement, to the side form of component And closure plate is removed, and carries out cutting process to exposed water-proof bolt;
(11) it conserves: moisture-keeping maintaining being wrapped up using film after form removable, in curing period, guarantee that film package is tight, structure There is condensed water appearance in part surface moisture and film.
Further, in the side form and closure plate removal step, check whether the apparent mass of component is qualified after demoulding in time, The defects of honeycomb, pitted skin, hole easily occurred, is repaired in time, specific treatment measures are as follows:
A, the processing of honeycomb defect: float stone in honeycomb is removed, is washed with clear water, and keep honeycomb inner concrete face wet Moisten, carefully clogs tamping with high label pea gravel concreten after formwork, then carry out plastering processing with same grade cement mortar, and Carry out moisture-keeping maintaining work;
B, pitted skin defect processing: concrete pitted skin part is cleaned out, and it is wet to water, after painted concrete interfacial agents Plastering processing is carried out using same grade cement mortar, carries out moisture-keeping maintaining work after the completion of processing in time;
C, the processing of concrete hole hole defect: to slight hole, float stone in hole is removed, is washed with clear water, and protect It is wet to hold hole inner concrete face, carefully clogs tamping with high label microlith slightly expanded concrete after formwork, then with mark Number cement mortar carries out plastering processing, and carries out moisture-keeping maintaining work.
Further, in the foundation trench excavation step, and subsection setup catch pit when basic channel excavation, groove two sides are set Set water-retaining cofferdam;The foundation trench bottom width can be according to formula B=2a+b+2c+d value, wherein B is foundation trench bottom overall width; Manual work face width in a groove, general value are 0.3m;B groove inner cushion layer width;The side c formwork width;D is reserved row Ditch width.
Further, the cushion construction step is constructed after foundation trench acceptance(check), when construction, pre-buried positioning in bed course Reinforcing bar cooperates PC member base preformed hole, the positioning datum point as subsequent PC component;After the completion of construction, in time on bed course Fire wall axis and wall sideline are popped up, as the position baseline of subsequent fire wall installation, is collectively formed with positioning bar dual Positioning safeguards.
Further, in fire wall PC component converse transportation step, be after component strength transports to the 75% of design strength, then into Row lifting, transport.
Further, the fire wall PC component assembly, in aligning step, mark fire prevention on fire wall PC component first Dike axis and wall outer edge, and go out absolute altitude control line in the significant position mark of wall;And before assembly, bed course reference line is checked And the position of positioning bar and linear;When assembled, it is overlapped the position line of fire wall PC component with bed course position line, and bed course positions Muscle is inserted into the preformed hole of member base, and carries out real-time control to the absolute altitude of fire wall PC component;After assembly, deviation is exceeded The position of permissible value corrects in time;After the completion of, correction levelling after component, back-grouting is done at interporal lacuna and bottom surface injustice to positioning Processing.
Further, in the wet connection step: live wet connection post-cast strip is set between each unit fire wall PC component, it is described Post-cast strip width is 1m, and the reserved exposed horizontal reinforcement of the fire wall PC component is using binding connection;The mould of the post-cast strip Plate is die-filling using anisotropic wall group, and the template proximate is fixed, institute on the prefabricated fire wall PC component in post-cast strip two sides Post-cast strip is stated to be poured using microdilatancy water-tight concrete;Reach construction requirement to concrete strength and guarantees that demoulding does not influence When concrete apparent mass, template is removed, to the timely moisture-keeping maintaining in the post-cast strip after dismounting.
Further, it expansion joint processing step: is mainly included in expansion joint and reserves grafting steel plate for sealing water in groove, and pointing is hated Then water rock wool is blocked expansion joint two sides and top surface using fire prevention clay.
Further, the separation levee interactive step includes component and separation levee junction being done dabbing processing, later to basis Beam, bear down on one and separation levee tension rib using chemically-planted steel bar method construct, the bar planting process include drilling, aperture blowing, gluing, bar planting.
The invention has the following advantages:
1, in arrangement and method for construction of the invention, " fire wall is integrally decomposed into several fire wall PC components 1, then will be made in advance Good fire wall PC component is attached according to engineering demand using post-cast strip or expansion joint, later again by changeover portion using existing The mode that pours of field and fire wall PC component are attached " technical solution, fire wall is segmented, carries out prefabricated in advance, then is transported It is assembled to scene, it can be achieved that producing object standardization, while production process each stage is integrated, engineering height systematism can make The building course of fire wall realizes continuity, greatly reduces weather and manually to the influence of construction quality, reduces simultaneously The pollution of site operation also largely eliminates the construction risk of traditional high altitude operation link.
It 2, include that " assembled fire wall Specific construction process is prefabricated place floor treatment, assembled fire prevention in the application Dike PC element precast, foundation trench excavation, cushion construction, prefabricated components have bad luck, fire wall PC lifting component is in place, PC part wet connection, Expansion joint processing, separation levee interaction, fire wall fireproof coating construction and check and accept " technical solution, in fire wall PC lifting component After the completion of progress integral assembling in place, then the pouring construction of wet seam is carried out, can reduce since construction surface is longer, sedimentation is uneven The characteristics of the drawbacks of bringing.
3, in the application, " when the template needed for prefabricated fire wall PC component, assembling is carried out by each class template and is poured It builds, required template has standard PC precast-concrete form, anisotropic wall rigging and mating attached closure plate mould etc., Plays PC precast-concrete form includes basis ground template die, toe of wall side seal mould, toe of wall cover board mould, wall heel side seal mould, wall heel cover board mould, fire prevention Dike side seal mould ", the application of various templates is conducive to control the quality of structures, and the fire wall PC component for being may be at a ratio Higher quality, and convenient for being uniformly controlled total quality, for apart from longer fire wall, so that quality control on construction It is more convenient, while custom built forms not only solves the quality problems of concrete, can also weigh in other fire wall projects It is multiple to utilize, working sources can be saved.
4, in the application, " cushion construction step is carried out after foundation trench acceptance(check), when construction, pre-buried spacer bar in bed course, Cooperate PC member base preformed hole, the positioning datum point as subsequent PC component;After the completion of construction, popped up on bed course in time anti- Fiery dike axis and wall sideline ", it can be subsequent that this technical solution position baseline and positioning bar, which form the Dual positioning installed, The accurate installation of fire wall PC component provides guarantee.
Detailed description of the invention
Fig. 1 is oil depot assembled fire wall construction process figure;
Fig. 2 is assembled fire wall PC element precast flow chart;
Fig. 3 is the component arrangement schematic diagram of assembled fire wall;
Fig. 4 is the section arrangement of reinforcement of fire wall PC component;
The schematic cross-section of Fig. 5 prefabricated steel-template;
Fig. 6 is the connection schematic diagram at expansion joint;
In figure: 1. fire wall PC components, 2. post-cast strips, 3. expansion joints, 4 cast in situs areas, 5 concrete cushions, 11 coagulations Soil, 12 distributing reinforcements, 13 basic muscle, 14 vertical muscle, 15 horizontal bars, 6 ventholes, 7 split bolts, 8 fire prevention clay, 9 hydrophobic rock wools, 10 Steel plate for sealing water.
Specific embodiment
Technical solution of the present invention is described in detail with reference to the accompanying drawings and embodiments:
The present invention is a kind of oil depot assembled fire wall construction method and the beam prefabricated method of fire wall, using fabricated anti- Fiery dike beam carries out the construction of fire wall, as shown in figure 3, fire wall to be integrally decomposed into several fire wall PC components 1, then will be pre- The fire wall PC component 1 first made is attached according to engineering demand using post-cast strip 2 or expansion joint 3, later again by transition The mode of Duan Caiyong cast in situs is attached with fire wall PC component.Specific construction process is different from traditional construction process, main It to include following below scheme, as shown in Figure 1, the prefabricated place floor treatment of step 1.;Step 2. assembled fire wall PC element precast; Step 3. foundation trench excavates;Step 4. cushion construction;Step 5. fire wall PC component converse transportation;6. fire wall PC lifting component of step is just Position;Step 7. fire wall PC component wet connection;The processing of step 8. expansion joint;The interaction of step 9. separation levee;The fire prevention of step 10. fire wall Coating application;Step 11. is checked and accepted.The detailed process of each step is as follows:
In step 1, prefabricated place floor treatment includes following implementing procedure: using original soil according to Geological condition Base, it is flattened roll after, carry out place with 100mm thickness 0.5-1CM rubble and mat formation.Place is drained using inorganization, from inside to outside Drainage grade is not less than 0.3%.
In step 2, assembled fire wall PC element precast includes following below scheme, as shown in Figure 2:
(1) custom built forms:
Templating species specifically include that standard PC precast-concrete form, anisotropic wall rigging and mating attached closure plate mould, Its Plays PC precast-concrete form: include basis ground template die, toe of wall side seal mould, toe of wall cover board mould, wall heel side seal mould, wall heel lid Template die, fire wall side seal mould.To guarantee pouring quality, component template width is using 2.5 meters of X2 piece assemblings.Centre usesSpiral shell It tethers and meets spacing 500mm.Toe of wall side seal mould is connected using card slot type when assembled, remaining is connected by screw bolts.Fire wall closure plate mould For Universal Die, according to typesetting figure demand and fire wall PC component present position, to using the groove containing steel plate for sealing water at construction joint Closure plate;To post-cast strip position, the pre- manufacturing of fire wall closure plate progress that band wears muscle hole can be used.It, can be to existing according to project characteristic Field corner carries out cast in situs using anisotropic wall rigging, to cast in situs area 4 as shown in Figure 3.Anisotropic wall group is die-filling Width is 1.5m, and highly with fire wall height, assembly passes through between templateBolt fastening connection, to being done at oblique angle at low bank between fields seam Reason.
As shown in figure 5, since, there are concreting weak area, air should not be discharged at the external corner of toe foot top.Prefabricated When steel form, the cover board of zygodactyl foot external corner reserves gas vent 6, aperture 20mm, away from side form side 50mm.
Base concrete buoyancy is larger when pouring, and takes measure of anti float when reinforcing to basis envelope mould, when model customization, floor Locate default split bolt, spacing 500mm.
(2) steel bar meter: as shown in figure 4, be the section arrangement of reinforcement of fire wall PC component, it is vertical according to design requirement fire wall Muscle 14 usesHorizontal bar 15 usesBasic 13 short of muscle usesDistributing reinforcement 12 UsingJoist top fold partial-length is not less than 200mm when processing, and lower anchor bends straight segment length not Less than 150mm, and meet the requirement of toe of wall anchorage length.
(3) basis ground template die and closure plate mould are assembled
A, it after basic end template is transported to pouring area, checks its flatness, meets plate angle any two points height difference and be not more than 0.5mm。
B, according to fire wall PC component present position, closure plate model is determined.
C, using maintenance area's falsework system is poured, two sides fire wall closure plate is supported on bed die, and is done interim It is fixed, and closure plate perpendicularity deviation is not more than 0.5mm;
(4) horizontal bar wears muscle, specifically includes step in detail below:
A, when closure plate makes, muscle hole is worn according to the spacing of wall horizontal bar and specification reservation.Such as engineering wall horizontal bar ForClosure plate usesPreformed hole is to guarantee smoothly penetrating for reinforcing bar.
B, to post-cast strip two sides fire wall PC component, reinforcing bar is penetrated from one end, and the other end is pierced by, and both ends protruded length meets The post-cast strip lap of splice requires and is not less than 800mm.Meanwhile all exposed steel bars are handled using PVC poling, poling length is not Less than reinforcing steel bars exposed length, poling diameter isTo guarantee fire wall PC component during casting concrete and conserve The cleaning of exposed steel bar in phase.
C, construction joint two sides fire wall PC component, horizontal bar is using the label positioning of prefabricated section two sides longitudinal reinforcement, then Both ends while binding and fixing.Horizontal bar two sides hook length meets anchoring and requires and bypass steel plate for sealing water groove.It is subsequent to guarantee The installation length requirement of steel plate for sealing water.
(5) longitudinal reinforcement is bound: after the completion of horizontal bar wears muscle, carry out the short muscle of fire wall longitudinal rib and basis positioning and Bind work.
A, according to design requirement, separation levee longitudinal rib is usedIt is uniformly anchored in basic floor.Anchorage length Not less than 476mm.
B, basic short reinforcing bar usesRebuilding.To guarantee protective floor thickness degree, the bottom of at, rubber band is tied up In setting on bed die with a thickness of the concrete pad of 40mm when bundle.1000 blossom type of spacing arrangement.
C, lifting lug is pre-buried: fixing tentatively in wall top longitudinal rib overlap joint lower part pre-buriedLifting lug, away from 500mm outside component, lifting lug Every side anchorage length is not less than 850mm.
(6) it reserves, installation of embedded parts
A, reserving hole: according to drawing requirement, reinforcing bar at reserving hole of the diameter greater than 300mm is cut off or is rolled over It is curved, and used to around itSteel reinforcing.Consider process pipe entrance position, reserving hole is closeer, and hole diameter Larger, there are stress to concentrate weak floor in hoisting process, and lifting is there are security risk, this section of need are reinforced in practice of construction.
B, installation of embedded parts: after specification, size by drawing makes, carries out setting-out to position, absolute altitude, using welding Positioning.Embedded part is securely welded in adjacent fire wall joist, and fire wall side form is close in embedded part outer surface.
(7) positioning bar and support installation
A, bending deformation in plate body when to prevent formwork reinforcement welds support in wall steel bar on the net, and bearing length is the same as fire prevention Dike thickness.Support usesReinforcing bar, spacing 1000X1000mm blossom type arrangement, welding should be secured and should avoid split bolt At perforation.
B, in the backform intersection that wall side form and toe of wall, wall are called in person, spacer bar is set.Positioning bar spacing 1000mm, weldering It is connected in reinforcement foundation cage, protruded length is not less than 100mm.
(8) envelope mould is reinforced
A, wall usesWater-proof bolt through walls carries out mode locking reinforcing, water-proof bolt spacing 600*600 blossom type cloth It sets.After bolt is in place, buckles to combine with ingot using dovetail card and be anchored on the round tube of template outer wall.After the completion of fastening, outside bolt Reveal length and is not less than 150mm.Water-proof bolt exposed parts are cut again after demoulding, antirust treatment.
B, foundation forms is reinforced, using reserving in basic bed dieFastening bolt, housing DN20PVC casing, to wall Toe bed die and toe of wall cover board mould carry out solid to tensing.After the completion of fastening, cover plate bolt protruded length is not less than 150mm, such as attached drawing 5 It is shown.
(9) concreting
Template assemblies are completed, and on inspection after acceptance(check), that is, carry out PC prefabricated components concrete pours work.
A, foundation pouring construction: to guarantee that the perfusion of foot wall toe portion is closely knit, concrete uses the 180mm slump, And it is aided with plate pulsator outside toe foot template and vibrates.When the reserved gas vent of toe of wall cover board mould has slurries spilling, stop base Plinth part is vibrated, and carry out wall pours operation.
B, wall part pouring construction: wall is poured using longitudinal layered, and lift height is not more than 0.9m, is poured in three times It completes.Every layer concrete completes to pour before lower layer's initial set and work of vibrating, operation of vibrating useType vibrates Stick, every layer is inserted into lower layer depth not less than 50mm when vibrating, vibrate is to concrete surface bubble-free, without sinking, laitance occur It is qualified.
C, after the completion of wall pours, top face work is carried out in time, while carrying out the installation of fire wall guardrail built-in fitting. Pay attention to checking that the position of built-in fitting and absolute altitude meet design requirement when installation.
(10) side form and closure plate are removed
After having poured concrete strength and having reached 1.2Mpa, the side form and closure plate of component are removed, and to exposed Water-proof bolt carries out cutting process.
Check whether the apparent mass of component qualified after demoulding in time, the defects of to the honeycomb, pitted skin, hole easily occurred and Shi Xiufu.Specific treatment measures:
A, the processing of honeycomb defect: float stone in honeycomb is removed, is washed with clear water, and keep honeycomb inner concrete face wet Profit.Tamping is carefully clogged with high label pea gravel concreten after formwork, then carries out plastering processing with same grade cement mortar.And Carry out moisture-keeping maintaining work.
B, pitted skin defect processing: concrete pitted skin part is cleaned out, and it is wet to water, after painted concrete interfacial agents Plastering processing is carried out using same grade cement mortar.Processing is completed, and carries out moisture-keeping maintaining work in time.
C, it the processing of concrete hole hole defect: to slight hole, is handled referring to honeycomb defect processing mode.That is: cleaning hole Float stone in hole, is washed with clear water, and keeps hole inner concrete face wet.It is mixed with high label microlith microdilatancy after formwork The carefully filling tamping of solidifying soil, then carries out plastering processing with same grade cement mortar.And carry out moisture-keeping maintaining work.To depth hole Hole (is greater than 100mm), can formulate jointly feasible treatment measures with design, management.
(11) it conserves: moisture-keeping maintaining being wrapped up using film after form removable, the moisture-keeping maintaining time is not less than 14 days.Curing period It is interior, guarantee that film package is tight, has condensed water appearance in component surface humidity and film.
In construction, every batch of prefabricated components reserve a certain number of test cube in the same condition, to determine the lifting intensity of component And the lifting time.Test block indwelling quantity meets code requirement, and no less than 4 groups, and acceptance of the bid supports two groups, two groups of cured under same condition.
Foundation trench excavation in step C can be carried out in the component conservation phase, carried out unwrapping wire to field basic, excavated.Excavate the gradient No more than 1: 0.67, when excavation, carries out the work of brush slope, to the place for being unsatisfactory for slope demand, faulting of slab ends excavation can be used, faulting of slab ends is wide Degree is not less than 0.8m.To guarantee construction quality, subsection setup catch pit when basic channel excavation, catch pit position should not influence to prevent Fiery dike is assembled.Water-retaining cofferdam is arranged in groove two sides, prevents rainwater from pouring into foundation trench, carries out cushion construction after the completion of excavating in time, prevents Only steep slot.
Foundation trench bottom width can be according to formula: B=2a+b+2c+d value, in which: B is foundation trench bottom overall width;A groove Interior manual work face width, general value are 0.3m;B groove inner cushion layer width;The side c formwork width;D is reserved draining furrow width Degree.
Cushion construction in step d is constructed after foundation trench acceptance(check).When construction, pre-buried spacer bar in bed course, Cooperate PC member base preformed hole, the positioning datum point as subsequent PC component.Positioning bar usesReinforcing bar, longitudinal pitch are 1.5m, horizontal spacing 1m.Under positioning bar bottom anchor and bed course in basement rock, anchorage depth is not less than 10mm, is higher by bed course 450mm。
When bed course pours, gathering around down and misplacing for positioning bar should be prevented.Timely righting is answered to the positioning bar gathered around down or misplaced, and It is checked from newly, it is ensured that positioning bar position is accurate and effective.
After the completion of construction, fire wall axis and wall sideline are popped up on bed course in time, as the installation of subsequent fire wall Dual positioning guarantee is collectively formed with positioning bar in position baseline, guarantees that PC prefabricated components installation error is not more than 0.5cm.
In step e, fire wall PC component converse transportation, after component strength transports to the 75% of design strength (about 22.5MPa), It is lifted, transport.25T flat car can be used, be equipped with 25#B I-steel lifting shoulder pole and carry out entrucking.
Fire wall PC component assembly, correction in step f:
1) fire wall axis and wall outer edge are marked on the PC member base in precasting yard, and in the significant position of wall Tagging goes out absolute altitude control line.
2) before assembly, the position and linear, the spelling of progress component after review is errorless of review bed course reference line and positioning bar Fill work.
3) when assembled, it is overlapped the position line of component with bed course position line, and bed course positioning bar insertion member base is pre- In boxing out, and real-time control is carried out using absolute altitude of the level to component, it is ensured that the position of component and the error of perpendicularity are little In 5mm.
4) after assembled, parallels is used to correct in time beyond the position of permissible value deviation., correction levelling to component is completed Afterwards, to back-grouting processing is done at positioning interporal lacuna and bottom surface injustice, grouting material intensity is not less than 40Mpa, before slurry does not solidify Component must not be disturbed.
The wet connection of fire wall PC component is carried out after step g. fire wall PC component assembly, correction, comprising the following steps:
1) live wet connection post-cast strip is set between each unit PC prefabricated components, post-cast strip width is 1m, and component is reserved exposed Horizontal reinforcement is using binding connection, and because same section connector rate is 100%, therefore the lap of splice is not less than 450mm, and longitudinal reinforcement is adopted WithIt lays.
2) alter-pouring strips mould plate is die-filling using anisotropic wall group, the template proximate fire wall PC component prefabricated in post-cast strip two sides On, every side fitting length is 250mm.Post-cast strip intermediate die plate is reinforced using water-stopping tie bolt, and split bolt longitudinal pitch is not Greater than 0.6m;Exposed split bolt is cut after demoulding, antirust treatment.
3) post-cast strip is poured using C35 microdilatancy water-tight concrete.It is poured when pouring using longitudinal layered, lift height is not Greater than 1m, completion is poured in three times.The completion before lower layer's initial set of every layer concrete pours and work of vibrating.Operation of vibrating usesType vibrating spear, every layer is inserted into lower layer depth when vibrating not less than 50mm, vibrate to concrete surface bubble-free, It is qualified without sinking, laitance occur.
4) when concrete strength reaches 1.2Mpa and guarantees that demoulding does not influence concrete apparent mass, form removable is carried out Operation.Timely moisture-keeping maintaining after dismounting conserves it and is no less than 14 days.
After the completion of integral assembling, then the pouring construction of wet seam is carried out, can reduce since construction surface is longer, sedimentation is uneven The drawbacks of even feature is brought.
The processing of the expansion joint step h., comprising the following steps:
1) expansion joint of PC prefabricated components is reserved and carries out 10 grafting of steel plate for sealing water, steel plate thickness 4mm, every side in groove Go deep into groove not less than 110mm, as shown in Figure 6.
2) pointing hydrophobic rock wool 9 in PC splicing prefabricated components expansion joint.
3) expansion joint two sides and top surface are blocked using 30 thick fire prevention clay 8, and fire prevention clay extends to terrace or less 500mm。
4) after qualification by inspection is completed in expansion joint processing, foundation filling soil operation can be carried out.
The interaction of step j separation levee the following steps are included:
Dabbing processing is done in component and separation levee junction, to foundation beam, bears down on one and separation levee tension rib is using chemically-planted steel bar method Construction, bar planting process are as follows: drilling → aperture blowing → gluing → bar planting, the following are
1) bear down on one bar planting: bar planting of bearing down on one usesThree-level reinforcing bar is not less than 110mm according to code requirement bar planting depth, Bore diameter isBar planting protruded length is not less than 1m.
2) foundation beam bar planting: foundation beam usesThree-level reinforcing bar, bar planting depth are 140mm, and bore diameter isProtruded length is 1m.
3) tension rib is built to useProtruded length is 1m, and bar planting depth is 80mm, longitudinal pitch 500mm.
It must not disturb after bar planting and expire in maintenance and carry out anti-pulling experiment by code requirement, be carried out after experiment is qualified subsequent The construction of separation levee.
The construction of step k fire wall fireproof coating carries out fireproof coating after fire wall main body construction completes qualification by inspection Construction:
1) its performance parameter is reviewed after fire proofing material is marched into the arena, review it is qualified after can carry out using.
2) construction before large area brushing, should carry out examination painting to guarantee its adhesive force with base using roller applications Brush, examination brushing surface are not less than 2 square meters.After qualification is brushed in examination, then carry out large area brushing operation.
Step l is checked and accepted, and construction is qualified through self-test after completing, and submits a report asking for management, owner carries out joint examination.
The present invention is built by the way of assembled fire wall, using the prefabricated fire wall PC component of batch production, then is transported to Scene is assembled, and realizes that production object standardization, the application of custom built forms are also beneficial to the quality of control structures.It produces simultaneously Various stages are integrated, engineering height systematism can make the building course of fire wall realize continuity, greatly reduce weather And manually to the influence of construction quality, while reducing the pollution of site operation, also largely eliminates traditional high altitude operation The construction risk of link.Custom built forms not only solves the quality problems of concrete simultaneously, can also weigh in other projects It is multiple to utilize, working sources can be saved.

Claims (10)

1. oil depot assembled fire wall construction method, which is characterized in that the assembled fire wall is by several segments fire wall PC structure Part forms, and is attached between the fire wall PC component by post-cast strip or expansion joint;Assembled fire wall Specific construction Process is the following steps are included: prefabricated place floor treatment, assembled fire wall PC element precast, foundation trench excavation, cushion construction, pre- Component converse transportation processed, fire wall PC lifting component be in place, PC part wet connection, expansion joint processing, separation levee interaction, fire wall fireproof coating Construction.
2. oil depot assembled fire wall construction method as described in claim 1, which is characterized in that the assembled fire wall PC Element precast step includes following below scheme:
(1) template needed for customizing prefabricated fire wall PC component:
Templating species include: standard PC precast-concrete form, anisotropic wall rigging and mating attached closure plate mould, Plays PC precast-concrete form includes basis ground template die, toe of wall side seal mould, toe of wall cover board mould, wall heel side seal mould, wall heel cover board mould, fire prevention Dike side seal mould;
(2) suitable bar diameter and arrangement spacing steel bar meter: are selected according to design requirement;
(3) basis ground template die and closure plate mould are assembled: detecting basic bed die plate flatness, meet construction requirement, by two sides fire wall Closure plate is supported on bed die, is fixed;
(4) horizontal bar wears muscle, specifically includes step in detail below: to post-cast strip two sides fire wall PC component, reinforcing bar is worn from one end Entering, the other end is pierced by, and both ends protruded length meets the post-cast strip lap of splice and requires and be not less than 800mm, meanwhile, to all exposed Reinforcing bar is handled using PVC poling;Construction joint two sides fire wall PC component, horizontal bar are marked using prefabricated section two sides longitudinal reinforcement It positions, then both ends while binding and fixing;Horizontal bar two sides hook length meets anchoring and requires and bypass steel plate for sealing water groove;
(5) longitudinal reinforcement is bound: after the completion of horizontal bar wears muscle, carrying out the positioning and binding of the short muscle of fire wall longitudinal rib and basis Work;And the pre-buried lifting lug in lower part is overlapped in wall top longitudinal rib;
(6) it reserves, installation of embedded parts: according to construction requirement, reinforcing bar at reserving hole being cut off or bending, and to around it Using steel reinforcing;Embedded part is securely welded in adjacent fire wall joist simultaneously;
(7) positioning bar and support installation: bending deformation in plate body when to prevent formwork reinforcement welds support in wall steel bar on the net; In the backform intersection that wall side form and toe of wall, wall are called in person, spacer bar is set.
(8) envelope mould is reinforced: being carried out mode locking reinforcing to wall, is carried out to toe of wall bed die and toe of wall cover board mould solid to tensing;
(9) concreting: progress wall part pours after first carrying out foundation pouring construction, after the completion of wall pours, Carry out top face work;
(10) side form and closure plate are removed: after having poured concrete strength and having reached prescribed strength requirement, side form to component and stifled Plate is removed, and carries out cutting process to exposed water-proof bolt;
(11) it conserves: moisture-keeping maintaining being wrapped up using film after form removable, in curing period, guarantee that film package is tight, piece table There is condensed water appearance in face humidity and film.
3. oil depot assembled fire wall construction method as claimed in claim 2, which is characterized in that the side form and closure plate are removed In step, check whether the apparent mass of component qualified after demoulding in time, the defects of to the honeycomb, pitted skin, hole easily occurred and Shi Xiufu, specific treatment measures are as follows:
A, the processing of honeycomb defect: removing float stone in honeycomb, washed with clear water, and keeps honeycomb inner concrete face wet, Tamping is carefully clogged with high label pea gravel concreten after formwork, then carries out plastering processing with same grade cement mortar, and do Good moisture-keeping maintaining work;
B, pitted skin defect processing: concrete pitted skin part is cleaned out, and it is wet to water, and uses after painted concrete interfacial agents Plastering processing is carried out with grade cement mortar, carries out moisture-keeping maintaining work after the completion of processing in time;
C, the processing of concrete hole hole defect: to slight hole, float stone in hole is removed, is washed with clear water, and retaining hole Hole inner concrete face is wet, tamping is carefully clogged with high label microlith slightly expanded concrete after formwork, then with same label water Cement mortar carries out plastering processing, and carries out moisture-keeping maintaining work.
4. the oil depot assembled fire wall construction method as described in claims 1 or 2 or 3, which is characterized in that the foundation trench is opened It digs in step, and water-retaining cofferdam is arranged in subsection setup catch pit when basic channel excavation, groove two sides;The foundation trench bottom width It can be according to formula B=2a+b+2c+d value, wherein B is foundation trench bottom overall width;Manual work face width in a groove, generally Value is 0.3m;B groove inner cushion layer width;The side c formwork width;D is reserved gutter width.
5. oil depot assembled fire wall construction method as claimed in claim 4, which is characterized in that the cushion construction step exists It constructs after foundation trench acceptance(check), when construction, pre-buried spacer bar in bed course cooperates PC member base preformed hole, as rear The positioning datum point of continuous PC component;After the completion of construction, fire wall axis and wall sideline are popped up on bed course in time, as subsequent The position baseline of fire wall installation, is collectively formed Dual positioning guarantee with positioning bar.
6. oil depot assembled fire wall construction method as claimed in claim 1 or 5, which is characterized in that fire wall PC component falls It transport in step, then lifted, transported after component strength transports to the 75% of design strength.
7. oil depot assembled fire wall construction method as described in claim 1 or 6, which is characterized in that the fire wall PC structure In part assembly, aligning step, fire wall axis and wall outer edge are marked on fire wall PC component first, and aobvious in wall Position mark go out absolute altitude control line;And before assembly, the position of bed course reference line and positioning bar and linear is checked;When assembled, It is overlapped the position line of fire wall PC component with bed course position line, and in the preformed hole of bed course positioning bar insertion member base, and Real-time control is carried out to the absolute altitude of fire wall PC component;After assembly, deviation is corrected in time beyond the position of permissible value;To component After the completion of levelling, correction, back-grouting processing is done at interporal lacuna and bottom surface injustice to positioning.
8. oil depot assembled fire wall construction method as claimed in claim 7, which is characterized in that in the wet connection step: Live wet connection post-cast strip is set between each unit fire wall PC component, and the post-cast strip width is 1m, the fire wall PC component Reserved exposed horizontal reinforcement is using binding connection;The template of the post-cast strip is die-filling using anisotropic wall group, the template proximate In on the prefabricated fire wall PC component in post-cast strip two sides, and be fixed, the post-cast strip using microdilatancy water-tight concrete into Row pours;When concrete strength reaches construction requirement and guarantees that demoulding does not influence concrete apparent mass, template is torn open It removes, to the timely moisture-keeping maintaining in the post-cast strip after dismounting.
9. oil depot assembled fire wall construction method as claimed in claim 1 or 8, which is characterized in that expansion joint processing step: It is mainly included in expansion joint and reserves grafting steel plate for sealing water in groove, and pointing hydrophobic rock wool, then by expansion joint two sides and top surface It is blocked using fire prevention clay.
10. oil depot assembled fire wall construction method as claimed in claim 9, which is characterized in that the separation levee interactive step Including, dabbing processing is done into component and separation levee junction, later to foundation beam, bear down on one and separation levee tension rib is using chemically-planted steel bar side Method construction, the bar planting process include drilling, aperture blowing, gluing, bar planting.
CN201811559140.7A 2018-12-12 2018-12-12 Oil depot assembled fire wall construction method Pending CN109610665A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811559140.7A CN109610665A (en) 2018-12-12 2018-12-12 Oil depot assembled fire wall construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811559140.7A CN109610665A (en) 2018-12-12 2018-12-12 Oil depot assembled fire wall construction method

Publications (1)

Publication Number Publication Date
CN109610665A true CN109610665A (en) 2019-04-12

Family

ID=66010045

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811559140.7A Pending CN109610665A (en) 2018-12-12 2018-12-12 Oil depot assembled fire wall construction method

Country Status (1)

Country Link
CN (1) CN109610665A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110761316A (en) * 2019-04-30 2020-02-07 中国石油工程建设有限公司华北分公司 Prefabricated foundation ring beam prefabricating method and storage tank construction method applying prefabricated foundation ring beam prefabricating method
CN112112294A (en) * 2020-10-26 2020-12-22 中建四局第三建设有限公司 Construction method and device based on assembled waterproof construction joint water stop

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006045772A (en) * 2004-07-30 2006-02-16 Yoshitaka Tanaka Fixing device of tubular flexible film expansion bank body and method for laying tubular flexible film expansion bank structure using this fixing device
CN202156684U (en) * 2011-07-07 2012-03-07 中国人民解放军总后勤部油料研究所 Assembled oil blocking embankment
CN106422119A (en) * 2016-11-11 2017-02-22 中化兴中石油转运(舟山)有限公司 Novel tank field fire dike
CN206503114U (en) * 2016-11-30 2017-09-19 胜利油田森诺胜利工程有限公司 A kind of assembled protection dike
CN206809564U (en) * 2016-11-10 2017-12-29 李振飞 A kind of fire wall and fire wall group
KR101835859B1 (en) * 2017-06-27 2018-03-07 채진아 Structure of reinforcement post with guard rail for dyke

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006045772A (en) * 2004-07-30 2006-02-16 Yoshitaka Tanaka Fixing device of tubular flexible film expansion bank body and method for laying tubular flexible film expansion bank structure using this fixing device
CN202156684U (en) * 2011-07-07 2012-03-07 中国人民解放军总后勤部油料研究所 Assembled oil blocking embankment
CN206809564U (en) * 2016-11-10 2017-12-29 李振飞 A kind of fire wall and fire wall group
CN106422119A (en) * 2016-11-11 2017-02-22 中化兴中石油转运(舟山)有限公司 Novel tank field fire dike
CN206503114U (en) * 2016-11-30 2017-09-19 胜利油田森诺胜利工程有限公司 A kind of assembled protection dike
KR101835859B1 (en) * 2017-06-27 2018-03-07 채진아 Structure of reinforcement post with guard rail for dyke

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
肖伟: "预制装配式建筑施工技术研究", 《江西建材》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110761316A (en) * 2019-04-30 2020-02-07 中国石油工程建设有限公司华北分公司 Prefabricated foundation ring beam prefabricating method and storage tank construction method applying prefabricated foundation ring beam prefabricating method
CN110761316B (en) * 2019-04-30 2021-10-01 中国石油工程建设有限公司华北分公司 Prefabricated foundation ring beam prefabricating method and storage tank construction method applying prefabricated foundation ring beam prefabricating method
CN112112294A (en) * 2020-10-26 2020-12-22 中建四局第三建设有限公司 Construction method and device based on assembled waterproof construction joint water stop

Similar Documents

Publication Publication Date Title
CN106868959B (en) A kind of method that high ferro non-fragment orbit circuit is quickly repaired
CN102392549B (en) Construction working method for seamless prestressed-concrete self-waterproof clean water reservoir
CN106284080B (en) Continuous rigid frame aqueduct closes up section constructing method
CN107542108B (en) A kind of reverse construction method of building basement structure
CN106958256B (en) A kind of placement layer by layer, the open caisson construction technique repeatedly sunk
CN103615053B (en) Monolithic reinforced concrete structure post empiricism engineering method
CN108166397B (en) Railway Frame Bridge construction method
CN207987983U (en) A kind of waterproof construction being used for underground engineering main body construction seam and post-cast strip
CN109736847A (en) Primary concreting concrete inverted arch and its construction method
CN109610665A (en) Oil depot assembled fire wall construction method
CN107090777A (en) A kind of T beam manufacture methods for reducing blibbing
CN108797598A (en) The construction technology of pre-loaded support struts in a kind of deep basal pit
CN109706952A (en) Large-scale well-sinking construction method
CN109648696A (en) Side slope precast lattice beam of reinforcing bar connection and preparation method thereof and construction method
CN111576481A (en) Tunnel portal open cut tunnel reinforcing construction method
CN111997066A (en) Manufacturing and construction method of assembled prestressed anchor cable frame beam for slope reinforcement
CN109838240A (en) Cross the river tunnel ledge cover and cut construction method
CN201943086U (en) Underground building wall body
CN110761316B (en) Prefabricated foundation ring beam prefabricating method and storage tank construction method applying prefabricated foundation ring beam prefabricating method
CN107905609A (en) Underground people's air defense construction method
CN110952586A (en) Construction process for bearing platform below expressway
CN110905523A (en) Subway vertical shaft construction method
CN110106915A (en) One kind exempts from that support is inverse to make underground engineering construction method and underground construction structure
CN103306497B (en) Shock prevention and strengthening construction method for existing brickwork dwelling house fabricated structure
CN111236170A (en) Quick construction method for buried rock concrete gravity dam

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination