CN102758437A - Circular foundation pit construction method for pouring ultra-large volume concrete radially from center to edge - Google Patents
Circular foundation pit construction method for pouring ultra-large volume concrete radially from center to edge Download PDFInfo
- Publication number
- CN102758437A CN102758437A CN2012102651192A CN201210265119A CN102758437A CN 102758437 A CN102758437 A CN 102758437A CN 2012102651192 A CN2012102651192 A CN 2012102651192A CN 201210265119 A CN201210265119 A CN 201210265119A CN 102758437 A CN102758437 A CN 102758437A
- Authority
- CN
- China
- Prior art keywords
- pouring
- concrete
- large volume
- construction method
- ultra
- 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
Links
Images
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a circular foundation pit construction method for pouring ultra-large volume concrete radially from center to edge, wherein automobile pumps and fixed pumps are arranged on an annular construction road of a foundation pit at intervals; a pouring operation is carried out by adopting a method for pouring in the pouring direction radially from center to edge; and a pouring principle comprises the rules of fixing points sectionally, forming one slope, carrying out thin-layer pouring, proceeding gradually, and pouring to the top in one step. By the adoption of the method for radially pouring from the center of the foundation pit to the edge thereof, the site condition advantages are sufficiently exerted, and a plurality of the automobile pumps are arranged as more as possible along the perimeter of the foundation pit for pumping the concrete. According to the method disclosed by the invention, the pouring path is shortened by a half, and the time of pouring the concrete is shortened; and the pipe explosion risks and quality hidden troubles caused by pump pipe blockage are reduced, the labor intensity of workers is lowered, and the homogeneity and compactness of the concrete are guaranteed simultaneously.
Description
Technical field
The invention belongs to the underground building technical field of construction, relate to the ultra mass concrete casting method of a kind of super large, radial pouring construction method around the mind-set in particularly a kind of circular foundation ditch ultra-large volume concrete.
Background technology
Along with the increase of project scale, the casting of concrete in mass scale of construction is increasing, and satisfy requirement of engineering has supporting technical method and measure.For preventing the generation of the cold seam of concrete, must strictness carry out management and control to the time of building.What the pouring construction of prior art mass concrete engineering generally adopted at present is to utilize fixed pump to carry out the unidirectional mode continuous placing construction of watering of moving back, and the method mainly contains following some factor affecting and builds efficient:
1. fixed pump waters that to smash speed low, and the time of building is long.
2. fixed pump waters the arrangement of smashing the monolateral cloth pump of common employing, causes the layout quantity of fixed pump few, and the utilization of area rate is low.
3. adopt fixed pump to move back frequent the installation and the dismounting pump line in the process of smashing, the amount of labour increases, and the concrete clogging takes place easily.
The amount of labour that is produced in the whole process is excessive, simultaneously following uncertain potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention provides and a kind ofly can shorten the concreting time; Reduce labor strength and degree of fatigue; And can guarantee in the homogeneous circular foundation ditch ultra-large volume concrete of concrete radial pouring construction method around the mind-set, to overcome the above-mentioned defective that prior art exists.
The technical scheme of technical solution problem of the present invention is following:
Radial pouring construction method around the mind-set in a kind of circular foundation ditch ultra-large volume concrete; It is characterized in that; With automotive pump and fixed pump separation on the annular pioneer road on foundation ditch limit; Build direction serve as reasons in around the mind-set radial method of building water and smash, water and smash principle and be segmentation fixed point, the gradient, a thin concrete lift, advance, once arrive the top in proper order.
Can know that by above disclosed technical scheme the present invention gives full play to the site condition advantage through adopting from foundation ditch radial casting method around the mind-set,, arrange that as far as possible many automotive pump carry out concrete pumping along the foundation ditch periphery.Shorten the half the path of building, reduced concrete watering the time of smashing; Reduce pump line and stopped up booster risk and the hidden danger of quality that brings, alleviated the intensity of workman's work, guaranteed concrete homogeneous density simultaneously.
Description of drawings
Fig. 1 ~ Fig. 3 flows to procedure chart for foundation ditch concrete in mass of the present invention waters to smash;
Reference numeral is following:
1, automotive pump 2, fixed pump 3, receive a maintenance zone
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is made further detailed description.
Specific embodiment: the total side of the thick 6m of certain long 121m of construction works main building sole plate amount 6 ten thousand steres, underplate concrete all adopts commercial concrete.
Radial pouring construction method around the mind-set in the circular foundation ditch ultra-large volume concrete of employing the present invention; With automotive pump and fixed pump separation on the annular pioneer road on foundation ditch limit; Build direction serve as reasons in around the mind-set radial method of building water and smash, water and smash principle and be segmentation fixed point, the gradient, a thin concrete lift, advance, once arrive the top in proper order.
Like Fig. 1 ~ shown in Figure 3; Adopt 12 automotive pump (4 56m and 8 48m) and 6 fixed pump separation on the annular pioneer road on foundation ditch limit; Wherein fetch earth and arrange 4 56m automotive pump on the trestle platform; All the other 8 48m automotive pump and 6 fixed pump separation are built in circular foundation ditch limit simultaneously, build direction and move back around the mind-set in serving as reasons and smash.
Employing is watered by radial method of building around the middle mind-set and is smash, and the gradient is controlled between the 30-45 degree, and about 10m to be 1 extension, height 1m segmentation is built.Concrete supply speed guarantees that greater than initial set speed concrete cold seam do not occur at the place, inclined-plane; A direction principle of receiving underplate concrete adopts and progressively advances from east to west, and the most western trestle place receipts head waters to be smash.
Through adopting the present invention to realize accomplishing the task of building in 60 hours, greatly reduce labor strength and degree of fatigue.
The above is merely preferred embodiments of the present invention, is not to be used for limiting protection scope of the present invention, and every equal conversion of doing according to claim of the present invention is all within protection scope of the present invention.
Claims (5)
1. radial pouring construction method around the mind-set in the circular foundation ditch ultra-large volume concrete; It is characterized in that; With automotive pump and fixed pump separation on the annular pioneer road on foundation ditch limit; Build direction serve as reasons in around the mind-set radial method of building water and smash, water and smash principle and be segmentation fixed point, the gradient, a thin concrete lift, advance, once arrive the top in proper order.
2. radial pouring construction method around the mind-set is characterized in that in the circular foundation ditch ultra-large volume concrete according to claim 1, and the gradient is controlled between 30 degree-45 degree.
3. radial pouring construction method around the mind-set is characterized in that in the circular foundation ditch ultra-large volume concrete according to claim 1, and about 10m to be 1 extension, height 1m segmentation is built.
4. radial pouring construction method around the mind-set is characterized in that in the circular foundation ditch ultra-large volume concrete according to claim 1, and underplate concrete is received a direction principle employing and progressively advanced from east to west, and the most western trestle place receipts head waters to be smash.
5. radial pouring construction method around the mind-set is characterized in that concrete supply speed guarantees that greater than initial set speed concrete cold seam do not occur at the place, inclined-plane in the circular foundation ditch ultra-large volume concrete according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102651192A CN102758437A (en) | 2012-07-27 | 2012-07-27 | Circular foundation pit construction method for pouring ultra-large volume concrete radially from center to edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102651192A CN102758437A (en) | 2012-07-27 | 2012-07-27 | Circular foundation pit construction method for pouring ultra-large volume concrete radially from center to edge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102758437A true CN102758437A (en) | 2012-10-31 |
Family
ID=47053070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102651192A Pending CN102758437A (en) | 2012-07-27 | 2012-07-27 | Circular foundation pit construction method for pouring ultra-large volume concrete radially from center to edge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102758437A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031423A (en) * | 2020-08-12 | 2020-12-04 | 河南高建工程管理有限公司 | Construction quality control method for ultra-large-volume concrete |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1515764A (en) * | 2003-01-06 | 2004-07-28 | 中国建筑第八工程局中南公司 | Ultra-thin superlength reinforced concrete structure seamless construction method |
| EP2072706A1 (en) * | 2007-12-20 | 2009-06-24 | Kp1 | Floor comprising girders and structural floor units as well as a seamless cast slab on these girders and structural floor units |
| CN101638940A (en) * | 2009-05-26 | 2010-02-03 | 中冶集团华冶资源开发有限责任公司 | Large plate mass concrete seamless construction method |
| CN102251674A (en) * | 2011-06-05 | 2011-11-23 | 山东宁建建设集团有限公司 | Bunker-skipping type seamless construction method of ultra-long concrete structure |
-
2012
- 2012-07-27 CN CN2012102651192A patent/CN102758437A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1515764A (en) * | 2003-01-06 | 2004-07-28 | 中国建筑第八工程局中南公司 | Ultra-thin superlength reinforced concrete structure seamless construction method |
| EP2072706A1 (en) * | 2007-12-20 | 2009-06-24 | Kp1 | Floor comprising girders and structural floor units as well as a seamless cast slab on these girders and structural floor units |
| CN101638940A (en) * | 2009-05-26 | 2010-02-03 | 中冶集团华冶资源开发有限责任公司 | Large plate mass concrete seamless construction method |
| CN102251674A (en) * | 2011-06-05 | 2011-11-23 | 山东宁建建设集团有限公司 | Bunker-skipping type seamless construction method of ultra-long concrete structure |
Non-Patent Citations (4)
| Title |
|---|
| 朱毅敏、龚剑: "宁波环球航运广场主楼基础底板大体积混凝土施工技术", 《建筑施工》 * |
| 王念念: "基础底板大体积混凝土分层浇筑施工技术", 《建筑技术》 * |
| 陈建大等: "超大体积超厚C50混凝土的配置技术与质量组织六步法管理机制的实践", 《全国混凝土新技术、新标准及工程应用学术交流会》 * |
| 龚剑等: "上海环球金融中心主楼深基础混凝土大底板施工研究", 《建筑施工》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031423A (en) * | 2020-08-12 | 2020-12-04 | 河南高建工程管理有限公司 | Construction quality control method for ultra-large-volume concrete |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107806205B (en) | Mounting structure and mounting method of lining-free steel dome | |
| CN105239775B (en) | A kind of reinforcement installation penetration quality dynamic control method for silo slip form construction | |
| CN206438500U (en) | A kind of bridge pile foundation steel reinforcement cage space positioning system | |
| CN103939110A (en) | Strengthening system for slight cracking of existing tunnel arch portion lining | |
| CN203547753U (en) | Profile steel concrete shaft wall base | |
| CN103451338B (en) | Method for installing ascending tubes and five-way balls of blast furnace gas systems | |
| CN207498832U (en) | Hydraulic climbing die block system climbing device | |
| CN205532623U (en) | Be applicable to special ground shield tunnel segment ring | |
| CN104314081A (en) | Deep foundation pit driftway-free basement concrete pumping construction device | |
| CN202866304U (en) | Reverse-building-method steel pipe column bottom locating device | |
| CN102758437A (en) | Circular foundation pit construction method for pouring ultra-large volume concrete radially from center to edge | |
| CN202644495U (en) | Porous vertical shaft slide mold construction device in complicated structure | |
| CN104153451A (en) | Construction method for installing concrete pipeline through prefabricated supporting block | |
| CN204163120U (en) | Excavation of foundation pit space enclosing structure top deformation monitoring device | |
| CN104900132A (en) | Simulated test device of shield method construction inclined well tube sheet filling behind lining | |
| CN202788126U (en) | Anchor bolt type column foot herringbone framework | |
| CN201554033U (en) | Tower crane foundation for deep foundation ditch | |
| CN202064330U (en) | Pressure steel pipe inspection access channel structure for high-head hydropower plant | |
| CN204783059U (en) | Poling combination bow member of tunnel work face of processing landslide | |
| CN108071097A (en) | A kind of turbine chamber integral replacing method | |
| CN206625850U (en) | Tunnel concrete liner Simple steel scaffold | |
| CN202520315U (en) | Tunnel ventilation shaft wall lining-supporting system | |
| CN103541574B (en) | Steel-making diffusing tower installation construction in narrow regions | |
| CN108868787B (en) | Shield starting construction method for river-crossing tunnel | |
| CN105317054A (en) | Draught fan foundation structure with single pile of transition sections and construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121031 |