CN204401613U - The structure of bored pile perforation spillage in water prevention - Google Patents
The structure of bored pile perforation spillage in water prevention Download PDFInfo
- Publication number
- CN204401613U CN204401613U CN201420592968.3U CN201420592968U CN204401613U CN 204401613 U CN204401613 U CN 204401613U CN 201420592968 U CN201420592968 U CN 201420592968U CN 204401613 U CN204401613 U CN 204401613U
- Authority
- CN
- China
- Prior art keywords
- bored pile
- active material
- solid protection
- casing
- spillage
- 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
- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to the structure of bored pile perforation spillage in water prevention, in reinforced concrete bored pile periphery, outer casing is set, between reinforced concrete bored pile and outer casing, arrange that solid protection dish starched by active material, solid protection wall starched by active material from top to bottom, cement-soil sealing retaining wall is set below active material slurry solid protection wall; Wherein the diameter of active material slurry solid protection dish is greater than active material slurry solid protection wall and cement-soil sealing retaining wall; Reinforcing cage location built-in fitting is arranged in the middle part of active material slurry solid protection dish; Reinforced concrete bored pile is formed by concrete perfusion after lay reinforcing cage in interior casing.The casing structure good stability that the utility model relates to, the feature of environmental protection are good, cost is relatively low, can the effective perforation spillage of bored pile in water prevention, have better technical economic benefit.
Description
Technical field
The utility model relates to a kind of bored pile operator guards and construction method, particularly relates to structure and the construction method of castinplace pile perforation spillage in a kind of water prevention.Belong to pile foundation engineering field, be applicable to require control perforation spillage, require the pile foundation construction of bored pile in high-quality water.
Background technology
Bored pile in foundation soil, forms stake holes by means such as machine drilling, steel pipe soil compaction or manpower excavations, and place reinforcing cage, concrete perfusion and the stake of making within it, is form the most frequently used in deep foundation.The restriction of the conditions such as the height not by region, geological conditions, weather conditions, groundwater table compared with other class bases, stake footpath size and pile body length, there is the advantage that bearing capacity is high, construction cost is low, and the load on top well can be passed to the rock-soil layer of deep stability by bored pile, thus reduce the sedimentation on basis and the differential settlement of building, therefore bored pile is widely used in highrise building, heavy_weight factory, bridge harbour, harbour, hydraulic engineering in recent years.Below water level is positioned at at the bottom of stake or whole pile bodies, or at the local concreting that current cannot be closed, underwater grouting must be adopted to construct.
Underwater gliders technology is the key link in bored pile foundation construction, and construction quality is directly connected to pile quality.Because concrete placed under water is more much more difficult than building on the ground, all the filling extent of building directly can not be observed during construction and after construction, controlling and improving in concrete quality all to occur a lot of difficulty.And, the disguise of underwater concrete filling pile construction itself, the complexity of technique and continuity, easily there is the quality accidents such as honeycomb, pitted skin, cavity, segregation, folder mud or broken pile in pile body, not only schedule delays and cause larger economic loss, and potential safety hazard of hiding, jeopardize people's property and life security.
The forms of protective wall of underwater directional vehicle has mud off mode method and full-sleeve construction method two kinds.But two kinds of methods have respective defect: mud off method construction quality can not ensure, easy shrinkage cavity collapse hole, perforation spillage; Full-sleeve construction method construction cost is higher, constructs comparatively loaded down with trivial details, needs to install elongated sleeve pipe, compresses into and withdrawing sleeve pipe difficulty.
Therefore, how concrete in water Construction Quality for Bore Filling Pile ensures, how effectively bored pile perforation spillage in water prevention, needs a kind of construction method of more optimizing of exploitation and quality assurance measure badly, to carry out Underwater pile construction better.
Utility model content
In order to overcome the above problems, the utility model provides bored pile perforation spillage structure and construction method in a kind of water prevention, two shield-tube embedment structure is adopted during bored pile construction in water, can the effective problem of bored pile perforation spillage in water prevention, effective guarantee filling pile construction quality, and pile strength and supporting capacity can be improved to a certain extent.
The technical solution of the utility model is:
The structure of bored pile perforation spillage in water prevention, in reinforced concrete bored pile periphery, outer casing is set, between reinforced concrete bored pile and outer casing, arrange that solid protection dish starched by active material, solid protection wall starched by active material from top to bottom, cement-soil sealing retaining wall is set below active material slurry solid protection wall;
Wherein the diameter of active material slurry solid protection dish is greater than active material slurry solid protection wall and cement-soil sealing retaining wall;
Reinforcing cage location built-in fitting is arranged in the middle part of active material slurry solid protection dish;
Reinforced concrete bored pile is formed by concrete perfusion after lay reinforcing cage in interior casing;
Described interior casing, outer casing and reinforcing cage are coaxially arranged, and the bottom of interior casing is positioned at the position of cement-soil sealing retaining wall approximate mid-section;
Outer casing is made up of different two sections of diameter, and its middle and upper part is expanding reach, and bottom is the section of reducing, connected unit between two sections is horizontal stand, is flexibly connected flap valve flabellum in the section of reducing bottom, and flap valve flabellum can rotate by free-open-close, keep when setting closing, keep when above carrying opening.
Inside and outside casing all adopts carbon structural steel coiled sheet system to form.
The construction method of bored pile perforation spillage structure in water prevention, step is as follows:
1) lay high-pressure rotary-spray drilling rod in interior casing bottom design position, high-pressure rotary-spray forms cement-soil sealing retaining wall;
2) at interior casing outer wrapping barrier film, according to design stake position, casing in the press-in of limit boring limit when setting, until design attitude, now, the bottom of casing is in the protection of cement-soil sealing retaining wall;
3) again according to interior casing position, be pressed into the outer casing made, when press-in, the flap valve flabellum of the section of reducing is closure state, conveniently sets;
4) between inside and outside casing, the above design attitude of cement-soil sealing retaining wall, pull out outer casing while pour in the vibration of active material limit, water suction forms active material slurry solid protection wall;
5) casing expanding reach pours into active material and buries reinforcing cage location built-in fitting underground outside, and active material water suction forms active material slurry solid protection dish;
6) after active material water suction slurry is solid, then carry out construction drill castinplace pile operation, transfer reinforcing cage in inside casing and it and reinforcing cage are located built-in fitting and weld;
7) adopt tremie method to concrete perfusion in reinforcing cage, interior casing is pulled out on filling limit, limit, forms reinforced concrete bored pile;
8) reclaim reinforcing cage location built-in fitting, fill up hole.
The utility model has the following advantages and beneficial effect:
1) inside and outside casing and reinforced concrete bored pile are coaxially arranged, and outer casing is shorter than interior casing, and two casings are not elongated settings, both construction cost had been saved, turn avoid casing and be installed with the problem with withdrawing difficulty, and serve starter equally, the effect of spud pile position.
2) arranging of outer casing more conveniently carries out the pouring construction of retaining wall and protection plate in castinplace pile periphery; Arranging of interior casing can the construction of better pilot bore hole castinplace pile, ensures concrete construction quality.
3) in upper and lower both direction apart from arranging cement-soil sealing retaining wall in certain limit bottom interior casing, compensate for casing shorter time the defect that can not ensure piling quality very well that causes, also enhance the vertical of pile foundation and Its ultimate bearing capacity to a certain extent, also hole wall be can stablize when bored pile construction, collapse hole, perforation spillage prevented.
4) the active material slurry solid protection dish of active material retaining wall and expansion is set on cement-soil sealing retaining wall top, not only overcome the problem that the top soil body not easily forms cement-soil retaining wall, and to water nonpollution, more environmental protection, also enhances the vertical of pile foundation and Its ultimate bearing capacity.
5) recyclable built-in fitting is set in protection plate, can locates and the reinforcing cage of fixing castinplace pile, prevent reinforcing bar from floating, ensure filling pile construction quality.
Accompanying drawing explanation
Fig. 1 is the structural representation that in water, bored pile shield-tube embedment structure does not pull out interior casing;
Fig. 2 is the top view after the socket of inside and outside casing;
Fig. 3 is the sectional view after the socket of inside and outside casing;
Fig. 4 is the stereogram after the socket of inside and outside casing;
In figure: 1, outer casing; 2, solid protection dish is starched; 3, reinforcing cage; 4, reinforced concrete bored pile; 5, interior casing; 6, barrier film; 7, reinforcing cage location built-in fitting; 8, solid protection wall is starched; 9, cement-soil sealing retaining wall; 10, reinforcement floor; 11, pin; 12, flap valve flabellum; 13, top layer, riverbed mud; 14, soft layer; 15, relative bearing stratum.
Detailed description of the invention
Reinforcing bar binding, Plate Welding construction technical requirement in present embodiment, the proportioning of cement-soil, concrete and active material and build pouring construction technical requirements etc. and be not repeated in the present embodiment, emphasis sets forth the utility model design feature and effect that the utility model relates to, and coordinates accompanying drawing to be described in detail as follows:
With reference to shown in Fig. 1, the structure of bored pile perforation spillage in water prevention, in reinforced concrete bored pile 4 periphery, outer casing 1 is set, between reinforced concrete bored pile 4 and outer casing 1, set gradually active material from top to bottom starch solid protection dish 2, active material slurry solid protection wall 8, cement-soil sealing retaining wall 9, wherein the diameter of active material slurry solid protection dish 2 is greater than active material slurry solid protection wall 8 and cement-soil sealing retaining wall 9, at active material slurry solid protection dish 2 top layout reinforcing cage location built-in fitting 7, reinforced concrete bored pile 4 is formed by laying the rear concrete perfusion of reinforcing cage 3 in interior casing 5, the bottom of interior casing 5 is positioned at the position in the middle part of the pact of cement-soil sealing retaining wall 9.
As Fig. 2, Fig. 3, Fig. 4, two casing structure is made up of casing 5 in coaxially arranging and outer casing 1, and outer casing 1 is made up of different two sections of diameter, and wherein epimere is expanding reach, and diameter is greater than the section of reducing, the bottom of the section of reducing and interior casing 5 equal diameter; Connected unit between two sections is horizontal stand, at the section of reducing bottom circumference welding six reinforcement floors 10, and six reinforcement floors 10 on corresponding six flap valve flabellums 12, fixed by pin 11, can rotate by free-open-close, keep when setting closing, on keep when carrying opening, handled easily, reduces resistance.
Interior casing 5 diameter 800mm, arranges barrier film 6 at outer wall, and sets in the middle part of cement-soil sealing retaining wall 9; Outer casing 1 expanding reach diameter 2100mm, the section of reducing diameter is 1400mm; Casing all adopts the Q235a carbon structural steel coiled sheet system of wall thickness 10mm to form; Casing and stake are coaxially arranged.
In cement-soil sealing retaining wall 9 is default in soft layer 14 by high-pressure rotary-spray drilling rod, the position high-pressure rotary-spray of casing end forms, be highly 1600mm, through clear hole of holing, will set bottom interior casing after in the middle part of cement-soil sealing retaining wall 9, shaping cement-soil sealing retaining wall 9 external diameter 1400mm, internal diameter 800mm, surround interior casing in central column, its top and bottom are respectively apart from 800mm bottom interior casing.
Between interior casing 5 and outer casing 1 section of reducing, expanding reach, slurry solid protection wall 8 and slurry solid protection dish 2 is become after cement-soil sealing retaining wall more than 9 is solid to absolute altitude place, riverbed perfusion active material water suction slurry, the reinforcing cage location built-in fitting 7 arranged at slurry solid protection dish 2 top adopts Ф 12mm, fix with bolt bottom strength grade HPB335 indented bars, built-in fitting is used for location and fixing reinforcing cage.
Reinforced concrete bored pile 4, pile-type is circular, and diameter is 700mm, and pile body, through top, riverbed soft layer, gos deep into 1000mm in relative bearing stratum 15; In reinforced concrete bored pile 4, the diameter of reinforcing cage is 500mm, 12 Ф 16mm, strength grade HRB335 longitudinal screw reinforcing bar are set, spiral stirrup adopts Ф 8mm, strength grade is the plain steel-bar of HPB300, fix reinforcing cage with reinforcing cage location built-in fitting 7, when preventing concreting, reinforcing bar floats; Reinforced concrete bored pile 4 adopts the concrete of C30; The construction of bored pile 4 meets current specifications requirement.
In above-mentioned water prevention, the main construction course of the structure of bored pile perforation spillage is as follows:
1) lay high-pressure rotary-spray drilling rod in interior casing 5 bottom design position, high-pressure rotary-spray forms cement-soil sealing retaining wall 9;
2) at interior casing 5 outer wrapping barrier film 6, according to design stake position, casing 5 in the press-in of limit boring limit when setting, until design attitude, now, the bottom of casing 5 is in the protection of cement-soil sealing retaining wall 9;
3) again according to interior casing 5 position, be pressed into the outer casing 1 made, when press-in, the flap valve flabellum 12 of the section of reducing is in closure state, conveniently sets;
4) between inside and outside casing, cement-soil sealing retaining wall more than 9 design attitude, pull out outer casing 1 while pour in the vibration of active material limit, water suction forms active material slurry solid protection wall 8;
5) casing 1 expanding reach pours into active material and buries reinforcing cage location built-in fitting 7 underground outside, and active material water suction forms active material slurry solid protection dish 2, and slurry solid protection dish 2 and part slurry solid protection wall 8 are in top layer, riverbed mud 13;
6) after active material water suction slurry is solid, then carry out construction drill castinplace pile operation, transfer reinforcing cage in inside casing and it and reinforcing cage are located built-in fitting 7 and weld;
7) adopt tremie method to concrete perfusion in reinforcing cage, interior casing 5 is pulled out on filling limit, limit, forms reinforced concrete bored pile 4;
8) reclaim reinforcing cage location built-in fitting 7, fill up hole.
Claims (5)
1. in water prevention bored pile perforation spillage structure, it is characterized in that arranging outer casing in reinforced concrete bored pile periphery, between reinforced concrete bored pile and outer casing, arrange that solid protection dish starched by active material, solid protection wall starched by active material from top to bottom, cement-soil sealing retaining wall is set below active material slurry solid protection wall;
Wherein the diameter of active material slurry solid protection dish is greater than active material slurry solid protection wall and cement-soil sealing retaining wall;
Reinforcing cage location built-in fitting is arranged in the middle part of active material slurry solid protection dish;
Reinforced concrete bored pile is formed by concrete perfusion after lay reinforcing cage in interior casing.
2. in water prevention according to claim 1 bored pile perforation spillage structure, it is characterized in that, described outer casing is made up of different two sections of diameter, its middle and upper part is expanding reach, and bottom is the section of reducing, and the connected unit between two sections is horizontal stand, flap valve flabellum is flexibly connected in the section of reducing bottom, flap valve flabellum can rotate by free-open-close, keeps closing when setting, and keeps opening when above carrying.
3. in water prevention according to claim 1 bored pile perforation spillage structure, it is characterized in that, described inside and outside casing all adopts carbon structural steel coiled sheet system to form.
4. in water prevention according to claim 1 bored pile perforation spillage structure, it is characterized in that described interior casing, outer casing and reinforcing cage are coaxially arranged, the bottom of interior casing is positioned at the position in the middle part of cement-soil sealing retaining wall.
5. the structure of bored pile perforation spillage in water prevention according to claim 1, is characterized in that slurry solid protection dish and part slurry solid protection wall are in the mud of top layer, riverbed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420592968.3U CN204401613U (en) | 2014-10-14 | 2014-10-14 | The structure of bored pile perforation spillage in water prevention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420592968.3U CN204401613U (en) | 2014-10-14 | 2014-10-14 | The structure of bored pile perforation spillage in water prevention |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204401613U true CN204401613U (en) | 2015-06-17 |
Family
ID=53425489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420592968.3U Active CN204401613U (en) | 2014-10-14 | 2014-10-14 | The structure of bored pile perforation spillage in water prevention |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204401613U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358252A (en) * | 2014-10-14 | 2015-02-18 | 杭州江润科技有限公司 | Structure for preventing perforation and slurry leakage of cast-in-situ bored pile in water and construction method of structure |
| CN105442532A (en) * | 2015-11-19 | 2016-03-30 | 杭州江润科技有限公司 | Construction method for pile-head-expanded bored pile |
| CN105937196A (en) * | 2016-05-24 | 2016-09-14 | 安徽省交通建设有限责任公司 | Subgrade pile-plank type widening structure and construction method thereof |
| CN108708369A (en) * | 2018-05-31 | 2018-10-26 | 中交公局第工程有限公司 | A kind of networking measures the positioning construction method and its device of control stake |
-
2014
- 2014-10-14 CN CN201420592968.3U patent/CN204401613U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358252A (en) * | 2014-10-14 | 2015-02-18 | 杭州江润科技有限公司 | Structure for preventing perforation and slurry leakage of cast-in-situ bored pile in water and construction method of structure |
| CN104358252B (en) * | 2014-10-14 | 2016-01-13 | 杭州江润科技有限公司 | The bored pile perforation structure of spillage and construction method in water prevention |
| CN105442532A (en) * | 2015-11-19 | 2016-03-30 | 杭州江润科技有限公司 | Construction method for pile-head-expanded bored pile |
| CN105442532B (en) * | 2015-11-19 | 2017-05-31 | 杭州江润科技有限公司 | Pile crown expands bored pile construction method |
| CN105937196A (en) * | 2016-05-24 | 2016-09-14 | 安徽省交通建设有限责任公司 | Subgrade pile-plank type widening structure and construction method thereof |
| CN105937196B (en) * | 2016-05-24 | 2017-12-22 | 安徽省交通建设股份有限公司 | A kind of roadbed peg board formula spells wide structure and construction method |
| CN108708369A (en) * | 2018-05-31 | 2018-10-26 | 中交公局第工程有限公司 | A kind of networking measures the positioning construction method and its device of control stake |
| CN108708369B (en) * | 2018-05-31 | 2024-01-26 | 中交一公局第一工程有限公司 | Positioning construction method and device for construction net measurement control pile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104358252B (en) | The bored pile perforation structure of spillage and construction method in water prevention | |
| CN105178344B (en) | The construction method of the built-in anti-float anchor rod plugging structure of sole plate precipitation of deep well | |
| CN202124865U (en) | Quick plugging device for dewatering wellhead of sand-free cement pipe deep well | |
| CN104452829B (en) | A kind of pile-raft foundation float Structure and construction method | |
| CN204401613U (en) | The structure of bored pile perforation spillage in water prevention | |
| CN202787334U (en) | Sealing structure of deep well casing used during tunnel construction | |
| CN103132504A (en) | Pre-set water-proof stakes and inserting and pulling construction method thereof | |
| CN101838957B (en) | Integral type T-shaped outer cantilever roads and construction method thereof | |
| CN201241344Y (en) | Controllable capsule type expansion device | |
| CN105156114A (en) | Enlarging repair and reinforcement method of roadways at crossing | |
| CN101324064B (en) | Controllable expansion extrusion soil body apparatus for geotechnical engineering and use thereof | |
| CN108149692B (en) | Supporting construction suitable for non-closed foundation ditch | |
| CN103911993B (en) | A kind of PHA anchor pole and construction method thereof | |
| CN103572764A (en) | Watertight structure for retaining wall of ultra-deep manually excavated pile and construction method thereof | |
| CN204959787U (en) | Novel tower crane combination formula basis | |
| CN106480878A (en) | A kind of upper and lower part expansion type soil cement is combined pile tube | |
| CN203613568U (en) | Anti-floating cement soil pile and anti-floating anchor rod combined anti-floating system | |
| CN105605335A (en) | Large-caliber prestressed steel cylinder concrete pipe for jacking construction | |
| CN201183950Y (en) | Self-propelling type anchor rod of seamless steel pipe | |
| CN202969370U (en) | Novel steel pipe pile | |
| CN204125941U (en) | Uplift pile structure | |
| CN207004431U (en) | Soft soil foundation exciting drilling device | |
| CN205977233U (en) | Tunnel lock foot spouts pilework soon | |
| CN211816292U (en) | Sand-flow prevention device for water-rich sand layer anchor rod construction | |
| CN103603341A (en) | Shaping method for waste-residue fill ultrahigh strength pile foundation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 230041 Suixi Road, Anhui, China, No. 310, No. Patentee after: Anhui traffic construction Limited by Share Ltd Address before: 230041 No. 310, Suixi Road, Luyang District, Anhui, Hefei Patentee before: ANHUI GOURGEN TRAFFIC CONSTRUCTION CO., LTD. |