CN1851150A - Concrete combined cushion wedge for supporting waist beam for pile anchoring system, and its constrection method - Google Patents
Concrete combined cushion wedge for supporting waist beam for pile anchoring system, and its constrection method Download PDFInfo
- Publication number
- CN1851150A CN1851150A CN 200610200441 CN200610200441A CN1851150A CN 1851150 A CN1851150 A CN 1851150A CN 200610200441 CN200610200441 CN 200610200441 CN 200610200441 A CN200610200441 A CN 200610200441A CN 1851150 A CN1851150 A CN 1851150A
- Authority
- CN
- China
- Prior art keywords
- concrete
- pile
- billet
- reinforcing bar
- wedge
- 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.)
- Granted
Links
Images
Abstract
The invention relates to a foundation pit engineering of constructing by pile-anchor timbering system. And the invention provides a concrete combined padding wedge, mainly comprising inner and outer parts, where the inner part is composed of bores, reinforcing steel bars and cement mortar, where the reinforcing steel bars are inserted in bores on the wall protection pile and the cement mortar is poured for anchoring; and the outer part is composed of concrete and steel padding plate, where the outer and inner steel plates are located and welded together, and the concrete is poured so that the reinforcing steel bars, steel padding plates and cast-in-site concrete form the combined padding wedge. At the time of concrete construction, firstly locating reinforcing steel bars, cutting holes and then anchoring the reinforcing steel bars with cement mortar and welding with the steel padding plates and moulding the cast-in- site concrete to form the concrete combined padding wedge. And its beneficial effects: effectively reducing wale section size and reducing engineering cost; assuring the whole wale stability, having stronger vertical load bearing ability and improving safety and stability of constructing course.
Description
Technical field
The invention belongs to the ground foundation engineering technical field, relate to the deep-foundation pit engineering that adopts the pile-anchor supporting system construction.
Background technology
At present, in the deep-foundation pit engineering that adopts the pile-anchor supporting system construction, for same row's anchor cable (bar), its horizontal level should guarantee to be in a straight line, waist rail is the significant points of whole support system as the force transferring structure of anchor cable (bar) pre-applied force, and the bind mode of waist rail and lagging pile not only influences the intensity and the stability of waist rail, also influence the transmission of anchor cable (bar) vertical direction component, the supporting effect of the whole support system of final directly influence and the safety and stability of deep foundation ditch.The lagging pile that construction finishes is inboard irregular often with the outside, form the situation of " coming and going ", traditional waist rail mounting means makes waist rail and lagging pile form point and contacts, or fill space between waist rail and the lagging pile with i iron, weld connects weak, is difficult to the vertical direction component that the balance waist rail is subjected to, and the whole unstability of waist rail usually takes place or comes off, and make the support system loss of stability, cause the deep foundation ditch unstability to be caved in.Therefore there are shortcomings such as connecting weak, stressed unreasonable, support system poor stability in the bind mode and the mounting method of existing traditional waist rail.
Summary of the invention
The purpose of this invention is to provide a kind of concrete combined cushion wedge and job practices thereof that in pile-anchor system, supports waist rail, to solve easy unstability that traditional waist rail exists or the situation that comes off, weaken moment of flexure peak value that waist rail bears and the vertical direction component of bearing anchor cable (bar) simultaneously, to improve the waist rail monolithic stability, to reach and keep the stable purpose of pattern foundation pit supporting structure.
The concrete combined cushion wedge of technical solution of the present invention design mainly comprises inside and outside two parts: the inboard mainly is made up of boring, reinforcing bar and cement mortar, and in the boring on the reinforcing bar insertion lagging pile, the cement injection mortar carries out grappling; The outside mainly is made up of concrete and billet, and outside billet and inboard reinforcing bar weld together after locating, concreting then, and the combined cushion wedge of reinforcing bar, billet and concrete formation becomes one with lagging pile.
The job practices that is used for the concrete combined cushion wedge of pile-anchor system support waist rail provided by the invention mainly may further comprise the steps:
1. (bar) projected depth along the lagging pile excavation pit to anchor cable;
2. draw a logical line in that anchor cable (bar) position along continuous straight runs is elongated, and be set on the lagging pile as anchor cable (bar) position, hole baseline;
On lagging pile apart from baseline each determining deviation 100mm ~ 200mm up and down, carry out location, reinforced hole position;
4. carry out behind the location punchinging with hammer drill according to the design aperture and the degree of depth, hole depth should have surplus, and the joints cement mortar is implanted the two rows reinforcing bar, and is exposed at the outer length of lagging pile by the design size and the angle adjustment two rows reinforcing bar of combined cushion wedge;
5. the concrete of the lagging pile pile body in the combined cushion wedge scope is cut a hole hair and handles, treat that cement mortar reaches design strength after, with billet and reinforcing bar firm welding;
6. after steel bar end cutting finishes, carry out welding with billet according to designing requirement, smooth and vertical to guarantee the billet pressure-bearing surface with the axis direction of anchor cable (bar);
Billet, reinforcing bar integrally welded after, a template is carried out concrete building under the billet, treats that concrete reaches form removal after the design strength, has formed concrete combined cushion wedge.
Effect benefit of the present invention is to provide is used for concrete combined cushion wedge and the job practices thereof that pile-anchor system supports waist rail, has the following advantages:
1. slacken the moment of flexure peak value, reduce construction costs.Traditional waist rail mounting process only supports the huge bending moment that opposing anchor cable (bar) pre-applied force produces waist rail by the fixed support that is connected with lagging pile, the present invention has made full use of the concrete combined cushion wedge with certain width and has resisted moment of flexure, thereby can weaken the moment of flexure peak value, effectively reduce sectional dimension, the reduction construction costs of waist rail.
2. the waist rail monolithic stability is good.Concrete combined cushion wedge of the present invention has certain length and width, by implanting reinforcing bar and cast-in-situ concrete and the lagging pile formation one in the lagging pile stake, guarantees the monolithic stability of waist rail, the safety and stability that improve work progress.
3. can bear the vertical stress component of anchor cable (bar).Owing to implant reinforcing bar and cast-in-situ concrete and lagging pile cementation in the lagging pile stake, make combined cushion wedge have the stronger vertical load ability of bearing, to bear the vertical direction component of anchor cable (bar).
Description of drawings
Fig. 1 is the structural plan schematic diagram of concrete combined cushion wedge of the present invention.
Fig. 2 is the structure elevational schematic view of concrete combined cushion wedge of the present invention.
Fig. 3 is the A-A sectional drawing of Fig. 2.
Fig. 4 is the foundation ditch elevational schematic view of embodiments of the invention.
Fig. 5 is the foundation ditch generalized section of embodiments of the invention.
Among Fig. 1～Fig. 5: 1 lagging pile; The reinforced hole that 2 cement mortar are built; 3 reinforcing bars; 4 billets; 5 cast-in-situ concretes; The pad of 6 billets and reinforcing bar; 7 waist rails; 8 anchor cables (bar); 9 anchor heads; 10 ground; 11 fore shaft beams; 12 substrates.
The specific embodiment
The concrete combined cushion wedge that is used for pile-anchor supporting system support waist rail of the present invention's design, its schematic diagram comprises inside and outside two parts as shown in Figure 1, 2, 3.Inboard reinforced hole 2 of mainly being built by cement mortar, reinforcing bar 3 are formed with cement mortar, and reinforcing bar 3 inserts in the lagging pile 1, and the pouring cement mortar is carried out grappling in reinforcing bar boring 2; The outside mainly is made up of billet 4 and cast-in-situ concrete 5, outside billet 4 welds together with inboard reinforcing bar 3, and concreting 5 then, makes reinforcing bar 3, billet 4 become one with cast-in-situ concrete 5, be close on lagging pile 1 outer wall, form concrete combined cushion wedge.
The concrete combined cushion wedge that is used for pile-anchor supporting system support waist rail of the present invention's design, its main feature is:
Utilize position of implanting reinforcing bar 3 in the lagging pile 1 and the function that length can be adjusted at any time, can greatly reduce the later stage integral installation difficulty of waist rail easily at grade long waist rail location; Utilize the intensity of the billet 4 that welds together with reinforcing bar 3 and cast-in-situ concrete 5 self, can bear the vertical direction component that waist rail bears; Form one by the reinforcing bar 3 and the cast-in-situ concrete 5 of implanting in 1 of the lagging pile with lagging pile 1, guarantee the monolithic stability of waist rail; Utilize the integral width and the intensity of concrete combined cushion wedge, can weaken the moment of flexure peak value that waist rail is subjected to greatly, reduce the waist rail size, reduce construction costs.
By abovementioned technology, make to be supported on that the position of waist rail is maintained at the same horizontal plane on the lagging pile, guarantee the safety and the stability of waist rail installation, improve the pile-anchor supporting system bulk strength with stable, reach the stable purpose of foundation ditch.
Below in conjunction with technical scheme and accompanying drawing, be described in detail specific embodiments of the invention.
To the relatively poor deep-foundation pit engineering of geological conditions, adopt pile-anchor supporting system usually.Shown in Fig. 4,5, the dark 12.4m of this routine foundation ditch, the long 15m of lagging pile stake of employing, stake footpath 0.8m, pile spacing 1.6m arrange two row's anchor cables, 25 ° at anchor cable inclination angle respectively in 5.0m, 7.5m position.
As shown in Figure 1, 2, 3, carry out lagging pile 1 construction according to design drawing, 10 excavation pits carry out the construction of first row's anchor cable 8 to 5.0m from ground then; At first draw a logical line, accurately make first row position, the anchor cable 8 hole absolute altitude at upper edge, 5.0m position lagging pile 1; Combined cushion wedge size a=125mm, b=208mm, c=220mm among Fig. 3 can calculate reinforcing bar position and length in reserve according to the size of a, b, c, and wherein going up placing of reinforcement 3 protruded lengths is 140mm, placing of reinforcement 3 protruded lengths are 230mm down; Then in the lagging pile center each side 100mm make 2 centers, position, 4 reinforced hole holes; The utilization machinery of punchinging carries out small-bore boring, aperture φ 42, hole depth 220mm; Perfusion M20 cement mortar is laid φ 25 reinforcing bars 3; Guarantee that according to the anchor cable inclination angle billet 4 planes and horizontal plane angle are 75 °, billet is of a size of 400mm * 300mm * 8mm, the planarization of billet 4 when guaranteeing with 3 welding of two rows reinforcing bar; The template of colligation cast-in-situ concrete 5, last flat formwork size 400mm * 120mm, lower plane template size 400mm * 310mm builds the C30 concrete, reaches stripping after the C10 intensity, forms concrete combined cushion wedge.
Concrete combined cushion wedge and waist rail 7 are integrally welded by the pad 6 of billet and reinforcing bar, carry out anchor cable 8 stretching constructions are installed, and carry out second row's anchor cable construction after finishing first row's anchor cable construction, can finish whole base pit engineering support works.
Claims (2)
1. a concrete combined cushion wedge and job practices thereof that in pile-anchor system, supports waist rail, it is characterized in that concrete combined cushion wedge comprises inside and outside two parts: the inboard is made up of boring, reinforcing bar and cement mortar, in the boring on the reinforcing bar insertion lagging pile, the cement injection mortar carries out grappling; The outside is made up of concrete and billet, welds together behind outside billet and the inboard reinforcing bar location, and formwork after-pouring concrete, the concrete combined cushion wedge that reinforcing bar, billet and cast-in-situ concrete form becomes one with lagging pile.
2. a kind of concrete combined cushion wedge and job practices thereof that supports waist rail in pile-anchor system according to claim 1 is characterized in that this method comprises following each step:
(1) (bar) projected depth along the lagging pile excavation pit to anchor cable;
(2) at the elongated logical line that draws of anchor cable (bar) position along continuous straight runs, be set at anchor cable (bar) position, hole baseline;
(3) on lagging pile apart from baseline up and down each determining deviation carry out location, reinforced hole position;
(4) punching with hammer drill according to the design aperture and the degree of depth, the joints cement mortar is implanted the two rows reinforcing bar;
(5) concrete of the lagging pile pile body in the combined cushion wedge scope is cut a hole hair and handles, treat that cement mortar reaches design strength after, carry out billet and reinforcing bar and weld;
(6) cutting is after steel bar end finishes, and carries out welding with billet according to designing requirement;
(7) billet, reinforcing bar integrally welded after, a template is carried out concrete building under the billet, forms concrete combined cushion wedge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006102004411A CN100429354C (en) | 2006-05-10 | 2006-05-10 | Concrete combined cushion wedge for supporting waist beam for pile anchoring system, and its constrection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006102004411A CN100429354C (en) | 2006-05-10 | 2006-05-10 | Concrete combined cushion wedge for supporting waist beam for pile anchoring system, and its constrection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1851150A true CN1851150A (en) | 2006-10-25 |
| CN100429354C CN100429354C (en) | 2008-10-29 |
Family
ID=37132651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006102004411A Expired - Fee Related CN100429354C (en) | 2006-05-10 | 2006-05-10 | Concrete combined cushion wedge for supporting waist beam for pile anchoring system, and its constrection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100429354C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775814B (en) * | 2009-02-20 | 2011-07-20 | 上海强劲地基工程股份有限公司 | Anti-slip cement soil pile soil blocking structure and construction method thereof |
| CN102251524A (en) * | 2011-04-25 | 2011-11-23 | 哈尔滨工业大学 | Foundation pit side wall prestressed anchor rod spreader beam row pile enclosing structure |
| CN102493459A (en) * | 2011-11-24 | 2012-06-13 | 天津二十冶建设有限公司 | Building isolation support construction method for constructing deep foundation in narrow environment |
| CN102561343A (en) * | 2012-02-17 | 2012-07-11 | 安徽省建设工程勘察设计院 | Construction method of threaded anchor rod of support structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2684167B2 (en) * | 1995-09-18 | 1997-12-03 | 新技術工営株式会社 | Ground anchor Ground fixing structure |
| US6363776B1 (en) * | 1999-11-12 | 2002-04-02 | Gary L. Reinert, Sr. | Pile testing reaction anchor apparatus and method |
| JP2001220740A (en) * | 2000-02-08 | 2001-08-17 | Maeda Corp | Structure for attaching ground anchor in anchor type earth-retaining construction method |
| JP4123058B2 (en) * | 2003-02-05 | 2008-07-23 | 株式会社大林組 | Construction method of wall structure with permanent anchor construction, Wall structure with permanent anchor construction |
-
2006
- 2006-05-10 CN CNB2006102004411A patent/CN100429354C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775814B (en) * | 2009-02-20 | 2011-07-20 | 上海强劲地基工程股份有限公司 | Anti-slip cement soil pile soil blocking structure and construction method thereof |
| CN102251524A (en) * | 2011-04-25 | 2011-11-23 | 哈尔滨工业大学 | Foundation pit side wall prestressed anchor rod spreader beam row pile enclosing structure |
| CN102493459A (en) * | 2011-11-24 | 2012-06-13 | 天津二十冶建设有限公司 | Building isolation support construction method for constructing deep foundation in narrow environment |
| CN102561343A (en) * | 2012-02-17 | 2012-07-11 | 安徽省建设工程勘察设计院 | Construction method of threaded anchor rod of support structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100429354C (en) | 2008-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105735325B (en) | A kind of intensive permanent support assembled basement structure system and construction method | |
| CN104746435B (en) | A kind of construction method of great-angle Y type pier stud | |
| CN112343061B (en) | Ultra-deep silt foundation pit transverse support construction device and construction method | |
| CN104895092A (en) | Method for using inner-support temporary latticed column as permanent structure column | |
| CN103603359A (en) | Deep foundation pit diagonal bracing support structure demolition method | |
| CN107905124B (en) | A kind of symmetrical expression rigid frame-continuous girder construction technology | |
| CN1167857C (en) | Foundation pit side-wall flexible support method | |
| CN210685444U (en) | Quick leveling, mounting and supporting device for prefabricated external wall panel | |
| CN100429354C (en) | Concrete combined cushion wedge for supporting waist beam for pile anchoring system, and its constrection method | |
| CN100473787C (en) | Connecting structure for use in piled anchor supporting system and construction method thereof | |
| CN111364356A (en) | Assembled reinforced concrete side anti-collision guardrail for connecting bridge | |
| CN108385693B (en) | Equal-generation anchor bolt supporting method and system for staged basement supporting | |
| CN108118689B (en) | Prefabricated underground diaphragm wall capable of being partially recycled, lifting appliance and construction method | |
| CN105649248A (en) | Fabricated prestressed concrete hollow slab and cast-in-place beam integrated construction method | |
| CN210106749U (en) | Counter-force structure of soft soil foundation super large section push pipe jacking operation | |
| CN108265744A (en) | A kind of connection structure of overhead transmission line PHC pipe pile foundations foundation pile and cushion cap | |
| CN110029653B (en) | Method for treating steel pipe pile foundation of riprap seabed foundation | |
| CN107090772B (en) | A kind of construction method of the especially big cast-in-place boom support of cable-stayed bridge end bay | |
| CN212200050U (en) | Assembled reinforced concrete side anti-collision guardrail for connecting bridge | |
| CN212426749U (en) | Hybrid reinforced concrete joint section | |
| CN112081118A (en) | Pile-anchor supporting foundation pit deepening reinforcing and supporting structure and construction method thereof | |
| CN210507799U (en) | Connector of semi-prefabricated section steel concrete column-section steel concrete beam node unit and section steel concrete beam | |
| CN212506314U (en) | Pile anchor supporting foundation pit deepening reinforcing and supporting structure | |
| CN113605370B (en) | Original underground diaphragm wall permanent-changing structure and construction process thereof | |
| CN114086479B (en) | Tower foot anchoring structure for assembling tower and tower building 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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081029 Termination date: 20210510 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |