CN104088282B - A kind of construction method of slip casting vibrated concrete - Google Patents
A kind of construction method of slip casting vibrated concrete Download PDFInfo
- Publication number
- CN104088282B CN104088282B CN201410311263.4A CN201410311263A CN104088282B CN 104088282 B CN104088282 B CN 104088282B CN 201410311263 A CN201410311263 A CN 201410311263A CN 104088282 B CN104088282 B CN 104088282B
- Authority
- CN
- China
- Prior art keywords
- slip casting
- mixer
- construction method
- concrete
- construction
- 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.)
- Active
Links
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The present invention relates to a kind of construction method of slip casting vibrated concrete, comprise the following steps: the first step: start mixer, in mixer, add water, cement, form cement grout; Second step: slip casting steel pipe is inserted in the gap of sand gravel accumulation body inside; 3rd step: open by-pass valve control; 4th step: by force (forcing) pump, the cement grout of mixer inside is expelled to described sand gravel accumulation body through high pressure resistant pipeline and slip casting steel pipe inner; 5th step: vibrate.The superior effect of the construction method of a kind of slip casting vibrated concrete of the present invention is: adopt the construction method of slip casting vibrated concrete not limit by construction space, as long as Grouting Pipe and vibrating spear are inserted in concrete and can be constructed, construction technology is simple, efficiency of construction is high, the concrete quality formed after construction is high, and short construction period, cost are low.
Description
Technical field
The present invention relates to concrete construction field, be specifically related to a kind of construction method of slip casting vibrated concrete.
Background technology
As everyone knows, China is Hydroelectric Project Construction big country, and in numerous Construction of Hydropower Engineering processes, often running into sand gravel ground needs concreting, or in hydrostatic concreting.Traditional method is excavated by sand gravel, builds normal concrete; Or excavate after-pouring underwater concrete.The shortcoming of excavating method is: when building normal concrete, catchments and is difficult to drain, and the slurries in concrete are taken away by flowing water, affect concrete construction quality; Underwater concrete needs hanging device concentrated setting, and easily conduit is pulled out sky when tube drawing, and make concrete be scattered in water, form uncompacted concrete, and it is less to be applicable to area, construction space has enough height; And comparatively large for area, the scene that construction space height is lower, as tunnel construction, then construction method has significant limitation.
Publication number is that the Chinese patent of CN102505694B discloses a kind of abnormal concrete automatic grouting and to vibrate equipment, comprise excavator and hydraulic system, also comprise for slurry station, slip casting tamping equipment, PLC control system and operation screen, for slurry station by being connected with the main bearing beam of excavator for slurry station bracket, slip casting tamping equipment is connected with the four-bar mechanism rocking arm of excavator by bearing pin by connector, PLC control system is positioned on the rotary table of excavator, operation screen is arranged in the driver's cabin of excavator, slip casting tamping equipment comprises hydraulic overturn oil cylinder, to vibrate frame, vibrating spear, casting head, slip casting frame, casting head and vibrating spear are arranged on slip casting frame respectively and vibrate in frame, slip casting frame is hinged on vibrates in frame, hydraulic overturn oil cylinder two ends are hinged on slip casting frame respectively and vibrate in frame.
Above-mentioned abnormal concrete automatic grouting vibrate the operating procedure of equipment and the course of work as follows:
1) mixer is opened: first by touch screen operation interface, and start mixer, mixer indicator lamp turns green and brightens, and shows that mixer is working properly, otherwise abnormal for quitting work or working.
2) reference position is demarcated: before slip casting, operating personnel manually operate excavator, and make casting head be positioned at specific several reference position, PLC control system is gathered by sensor and preserves these positional informations.
3) casting head automatic aligning: when equipment is in slip casting state, after starting slip casting button, PLC control system will constantly compare the reference position and angular displacement sensor current location information that preset, by hydraulic control system electromagnetic valve, movable arm cylinder of excavator, oil cylinder of small arm and bucket cylinder are the coordinations of excavator arm, make casting head just insert desired location, and contraposition indicator lamp also strains green brightening mutually, show that corresponding contraposition is working properly, otherwise be that contraposition is abnormal.
4) grouting amount controls automatically: after automatic aligning terminates, PLC control system is again according to the grouting amount of setting, by calculating ram travel and oil cylinder effect number of times, in conjunction with the displacement information that the sensor be arranged on plunger frame gathers, realize automatic ration accurate grouting by PLC control system and HYDRAULIC CONTROL SYSTEM Driven by Hydraulic Cylinder plunger displacement pump group.Now, slip casting indicator lamp turns green and brightens, and shows slip casting end-of-job, otherwise for there is no slip casting or working abnormal.
5) add slurry automatic-prompting: PLC control system has grouting amount accumulation function, when cumulative grouting amount and slurries bucket volume close to time, system can provide warning reminding must add slurry, otherwise without the need to adding slurry.After adding slurry, need by hand accumulator to be reset.
6) duty conversion: after slip casting, PLC control system sends signal, first drives excavator arm action by hydraulic system, extracts casting head; Again by solenoid control overturning oil cylinder, make slip casting equipment inwardly overturn 90 ° of angles, thus make slip casting vibrate equipment by slip casting state.
7) to vibrate control: vibrating spear moves on work plane by first manual operation excavator; Afterwards by touch screen operation interface, start vibrating spear and insert work plane; Manual operation excavator controls vibrating spear work again.Now, PLC control system, by according to the vibrating time preset, closes vibrating spear automatically.
This abnormal concrete automatic grouting vibrates device structure complexity, and manufacturing cost is high, and the scope of application is limited.
At present, sand gravel is dug out from water, then handled region is closed, drain the water in this region, in this region, build normal concrete, long construction period; Concreting then easily produces the defect of concrete dispersion under water.
Summary of the invention
In order to overcome defect of the prior art, the object of this invention is to provide a kind of construction method of slip casting vibrated concrete.
The present invention is achieved by the following technical solutions:
A construction method for slip casting vibrated concrete, comprising:
The first step: start mixer, add water, cement in mixer, forms cement grout;
Second step: slip casting steel pipe is inserted in the gap of sand gravel accumulation body inside;
3rd step: open by-pass valve control; Described by-pass valve control is for controlling the feed status of cement grout, and as started conveying, stopping is carried;
4th step: by force (forcing) pump, the cement grout of mixer inside is expelled to described sand gravel accumulation body through high pressure resistant pipeline and slip casting steel pipe inner;
Proportion due to described cement grout is greater than the proportion of sand gravel accumulation body internal water, therefore after being injected by cement grout, is cemented out by the water of sand gravel accumulation body inside; Wherein, described force (forcing) pump is used for pressurizeing to cement grout;
5th step: vibrate; Inserted by vibrating spear in the sand gravel accumulation body of injection water slurry liquid, starter motor, under the driving of motor, described vibrating spear vibrates, and forms closely knit concrete structure.
Further, in the above-mentioned first step, described water, cement weight are than being 0.3:1.
Further, in the above-mentioned first step, described mixer adopts the mixer of 1200L, and described mixer is for the preparation of cement grout.
Further, in above-mentioned second step, described slip casting steel pipe employing diameter is the high pressure resistant pipeline of 50mm, carries for cement grout.
Further, in above-mentioned 4th step, described force (forcing) pump applies pressure between 0.2-0.3Mpa.
Further, in above-mentioned 5th step, described vibrating spear adopts diameter to be the vibrating spear of 70mm.
The mixer of above-mentioned slip casting vibrated concrete job site, force (forcing) pump and slip casting steel pipe by high pressure resistant fastener for connection, and are provided with by-pass valve control on the high pressure resistant steel pipe of described force (forcing) pump output.
The construction party ratio juris of a kind of slip casting vibrated concrete of the present invention is: by the inner space injection water slurry liquid to sand gravel accumulation body, the inner space of sand gravel accumulation body is made to be full of cement grout, water in gap is cemented out simultaneously, after vibrating spear vibrates, form closely knit concrete structure.Described construction method is applicable to the job site that sand gravel accumulation body thickness is less than 1.5m.
Compared with prior art, the superior effect of the construction method of a kind of slip casting vibrated concrete of the present invention is: adopt the construction method of slip casting vibrated concrete not limit by construction space, as long as Grouting Pipe and vibrating spear are inserted in concrete and can be constructed, construction technology is simple, efficiency of construction is high, the concrete quality formed after construction is high, and short construction period, cost are low.
Accompanying drawing explanation
Fig. 1 is the construction method job site schematic diagram using a kind of slip casting vibrated concrete of the present invention.
Accompanying drawing mark is as follows:
1-mixer, 2-force (forcing) pump, the high pressure resistant pipeline of 3-, 4-by-pass valve control, 5-slip casting steel pipe, 6-vibrating spear, 7-motor, 8-sand gravel accumulation body, 9-constructor.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described in further detail.
As shown in Figure 1, the present invention discloses a kind of construction method of slip casting vibrated concrete, comprising:
(1) start mixer 1, in mixer 1, add water, cement, form water, cement weight in mixer 1 inside than the cement grout for 0.3:1; Wherein said mixer 1 adopts the mixer of 1200L, and described mixer 1 is for the preparation of cement grout;
(2) slip casting steel pipe 5 is inserted in the gap of sand gravel accumulation body 8 inside; Wherein, described slip casting steel pipe 5 adopts diameter to be the high pressure resistant pipeline of 50mm, carries for cement grout;
(3) by-pass valve control 4 is opened; Described by-pass valve control 4 is for controlling the feed status of cement grout, and as started conveying, stopping is carried;
(4) by force (forcing) pump 2, the cement grout of mixer 1 inside is expelled to described sand gravel accumulation body 8 through high pressure resistant pipeline 3 and slip casting steel pipe 5 inner; Proportion due to described cement grout is greater than the proportion of sand gravel accumulation body 8 internal water, therefore after being injected by cement grout, is cemented out by the water of sand gravel accumulation body 8 inside;
Wherein, described force (forcing) pump 2 is for pressurizeing to cement grout, and pressure is between 0.2-0.3Mpa;
(5) vibrate; Inserted by vibrating spear 6 in the sand gravel accumulation body 8 of injection water slurry liquid, starter motor 7, under the driving of motor 7, described vibrating spear 6 vibrates, and forms closely knit concrete structure;
Wherein, described vibrating spear 6 adopts diameter to be the vibrating spear of 70mm.
The construction method of a kind of slip casting vibrated concrete of the present invention Successful utilization in Xinjiang Ji Lebu clarke Diversion Tunnel shutoff alteration work.
In Ji Lebu clarke Diversion Tunnel lock well Stoplog gate downstream, underwater concrete is built in Stoplog gate (not shown) upstream, because end bank destroys, there is the gap of 30cm, a large amount of underwater concretes is from this slit flow to downstream, and the cement paste in concrete is washed away by infiltration, is forming thickness behind the door at 1.5m-1.7m, the sand gravel accumulation body of wide 6m, long 22m; Hole backwater is propped up in sand gravel accumulation body in downstream, depth of water 1.5m.The long C20 normal concrete block section of 18m is being built in designing requirement behind the door, and now the season of North SinKiang severe cold the most just, temperature is minimum reaches-28 degree.
Use construction method of the present invention, be specially: the cement grout arranging mixer 1 and force (forcing) pump 2, mixing 0.3:1 the aboveground side of lock, by the high pressure resistant pipeline 3 of φ 50mm, install in its end a diameter be the steel pipe of 20mm as slip casting steel pipe 5, formed filling system.Start to vibrate with vibrating spear 6 pairs of sand gravel accumulation bodies 8 of φ 70mm, applied the pressure of 0.2-0.3MPa by force (forcing) pump 2, slip casting steel pipe 5 is inserted bottom sand gravel accumulation body 8, while the marginal not slurry that vibrates, slip casting spacing 30cm.After slip casting emits slurries to sand gravel accumulation body 8 surface, then continue 15 seconds, then carry out lower some slip casting, the slip casting by row from upstream to downstream, in the process, also squeezes by the water in sand gravel accumulation body 8, forms closely knit concrete structure.
Sample slip casting vibrated concrete, place in fog room, within 3 days, concrete strength reaches 10.30MPa, within 28 days, reaches 24.53MPa, meets the requirement of design C20 concrete strength.Block section build after 7 days, enter occluding body downstream face from Diversion Tunnel and observe, this position is vibrated after construction through slip casting, and concrete is dry, without infiltration.
The present invention is not limited to above-mentioned embodiment, and when not deviating from flesh and blood of the present invention, any distortion that it may occur to persons skilled in the art that, improvement, replacement all fall into scope of the present invention.
Claims (5)
1. a construction method for slip casting vibrated concrete, is characterized in that, at least comprises:
The first step: start mixer, add water, cement in mixer, forms cement grout; Described water, cement weight are than being 0.3:1;
Second step: slip casting steel pipe is inserted in the gap of sand gravel accumulation body inside;
3rd step: open by-pass valve control;
4th step: by force (forcing) pump, the cement grout of mixer inside is expelled to described sand gravel accumulation body through high pressure resistant pipeline and slip casting steel pipe inner;
5th step: vibrate; Inserted by vibrating spear in the sand gravel accumulation body of injection water slurry liquid, starter motor, under the driving of motor, described vibrating spear vibrates, and forms closely knit concrete structure.
2. the construction method of a kind of slip casting vibrated concrete according to claim 1, is characterized in that, in the above-mentioned first step, described mixer adopts the mixer of 1200L.
3. the construction method of a kind of slip casting vibrated concrete according to claim 1, is characterized in that, in above-mentioned second step, described slip casting steel pipe employing diameter is the high pressure resistant pipeline of 50mm.
4. the construction method of a kind of slip casting vibrated concrete according to claim 1, is characterized in that, in above-mentioned 4th step, described force (forcing) pump applies pressure between 0.2-0.3Mpa.
5. the construction method of a kind of slip casting vibrated concrete according to claim 1, is characterized in that, in above-mentioned 5th step, described vibrating spear adopts diameter to be the vibrating spear of 70mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410311263.4A CN104088282B (en) | 2014-04-11 | 2014-07-01 | A kind of construction method of slip casting vibrated concrete |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410147017X | 2014-04-11 | ||
| CN201410147017 | 2014-04-11 | ||
| CN201410147017.X | 2014-04-11 | ||
| CN201410311263.4A CN104088282B (en) | 2014-04-11 | 2014-07-01 | A kind of construction method of slip casting vibrated concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104088282A CN104088282A (en) | 2014-10-08 |
| CN104088282B true CN104088282B (en) | 2016-02-24 |
Family
ID=51636032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410311263.4A Active CN104088282B (en) | 2014-04-11 | 2014-07-01 | A kind of construction method of slip casting vibrated concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104088282B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563156A (en) * | 2014-12-25 | 2015-04-29 | 贵州省交通规划勘察设计研究院股份有限公司 | Construction equipment for retaining walls |
| CN111676987A (en) * | 2020-06-02 | 2020-09-18 | 北京建材地质工程有限公司 | Construction method for backfilling construction of construction fertilizer tank by vibrating, slurry-flushing and ramming method |
| CN112440381A (en) * | 2020-11-10 | 2021-03-05 | 南通装配式建筑与智能结构研究院 | Pressure grouting stirring equipment and control method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0598636A (en) * | 1991-10-08 | 1993-04-20 | Ask Kenkyusho:Kk | Cylindrical shell foundation and construction method thereof |
| CN201021495Y (en) * | 2006-11-16 | 2008-02-13 | 杜绍安 | Vibration machine for plasm injection construction of sand earth foundation |
| CN202337976U (en) * | 2011-06-17 | 2012-07-18 | 北京荣创科宏岩土工程有限公司 | In-hole impact high-pressure jet grouting equipment |
| CN203160248U (en) * | 2013-03-15 | 2013-08-28 | 中国水利水电第七工程局有限公司 | Grout enriched vibrated RCC grouting and vibrating device |
| CN103437348B (en) * | 2013-08-28 | 2015-06-17 | 深圳市福田建安建设集团有限公司 | Construction device and method of pile peripheral cemented soil cast-in-place stiffness core pile |
-
2014
- 2014-07-01 CN CN201410311263.4A patent/CN104088282B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104088282A (en) | 2014-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204112308U (en) | A kind of simple and easy sleeve valve grouting device based on bowlder stone, Thief zone coefficient stratum | |
| CN103835283B (en) | Full wet joint prefabricated prestressed underground continuous wall and construction method thereof | |
| CN101666234B (en) | Fracture rock no-slurry-blocking wall compound grouting construction method | |
| CN103334444B (en) | A kind of method for blocking of foundation pit dewatering well pressure release type | |
| CN103277120A (en) | Post-unfreezing water burst prevention method of non-full-depth freezing vertical shaft | |
| CN206667278U (en) | Lava crack Tunnel gushing treatment constructing structure | |
| CN106759297A (en) | A kind of construction method of support pile and three pipe high-pressure rotary jet grouting pile deep basal pits | |
| CN103184734A (en) | Implanted and grouted compound pile and construction method | |
| CN103266614A (en) | Sublevel retreating type two-fluid composite grouting construction method for deep foundation pit of sandy gravel stratum | |
| CN104088282B (en) | A kind of construction method of slip casting vibrated concrete | |
| CN214363657U (en) | Pre-buried type biliquid slip casting leaking stoppage structure of foundation ditch | |
| CN108086296B (en) | Dynamic and static combined grouting foundation reinforcing construction method | |
| CN105731978B (en) | A kind of grouting serous fluid and grouting method for fine sand layer jacking culvert solidifying of the working face | |
| CN108915690B (en) | Novel method for preventing water gushing of vertical shaft well wall in vertical shaft aquifer tunneling | |
| CN108612086A (en) | A kind of crack geotechnical boring cast-in-place pile construction method | |
| CN203213101U (en) | Embedding grouting combined pile | |
| CN105926624A (en) | Non-return type collecting hole grouting device and construction method thereof | |
| CN202970719U (en) | Relay chamber-free jacking construction device for ultra-long pipe roof | |
| CN103174135B (en) | Repair method of unqualified post-grouting bored concrete pile | |
| CN203161250U (en) | Deep hole grouting reinforcing system for tunnel | |
| CN106837378B (en) | Exempt from wall for grouting segmentation cleaning bottom of hole retrusive controlling grouting equipment | |
| CN101768982A (en) | Method and device for eliminating underground building curtain water burst and quick sand | |
| CN105220683B (en) | A kind of I-shaped steel joint formula diaphram wall is around current processing device and method | |
| CN107975027A (en) | The construction method that shield launching is reinforced with reaching end soil body | |
| CN205171501U (en) | I -steel connects formula underground continuous wall and streams processing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |