CN108222045A - A kind of connection structure at the top of high-pressure rotary jet grouting pile cut-pff wall - Google Patents
A kind of connection structure at the top of high-pressure rotary jet grouting pile cut-pff wall Download PDFInfo
- Publication number
- CN108222045A CN108222045A CN201810232639.0A CN201810232639A CN108222045A CN 108222045 A CN108222045 A CN 108222045A CN 201810232639 A CN201810232639 A CN 201810232639A CN 108222045 A CN108222045 A CN 108222045A
- Authority
- CN
- China
- Prior art keywords
- pressure rotary
- jet grouting
- rotary jet
- grouting pile
- pff wall
- 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.)
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 21
- 230000002787 reinforcement Effects 0.000 claims description 7
- 244000050510 Cunninghamia lanceolata Species 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Paleontology (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention discloses a kind of connection structures at the top of high-pressure rotary jet grouting pile cut-pff wall, including being located at the top hydro-structure above high-pressure rotary jet grouting pile cut-pff wall, profiled beam is equipped between high-pressure rotary jet grouting pile cut-pff wall and top hydro-structure, the profiled beam includes pedestal, at least one fitting portion being set on pedestal；Top hydro-structure is equipped with the groove that permissible fitting portion is inserted into；It is fixedly connected at the top of pedestal and high-pressure rotary jet grouting pile cut-pff wall, fitting portion is inlaid into the groove of top hydro-structure；On the outer profile of profiled beam, every the position that is contacted with top hydro-structure is needed to be equipped with flexible material layer.The present invention improves the closing reliability of high-pressure rotary jet grouting pile cut-pff wall and top hydro-structure, there is good conformity ability to the vertical and level difference deformation of high-pressure rotary jet grouting pile cut-pff wall and top hydro-structure, ensure the safe and reliable of seepage control system, it is convenient to construct, and is with a wide range of applications in hydraulic and hydroelectric engineering field.
Description
Technical field
The invention belongs to hydraulic and hydroelectric engineering technologies, and in particular to a kind of connection at the top of high-pressure rotary jet grouting pile cut-pff wall
Structure.
Background technology
High-pressure rotary jet grouting pile cut-pff wall is commonly used in sand, gravel, ovum（It is broken）Prevent in the loose pervious foundation such as stone or filling body
Ooze processing.For at the top of high-pressure rotary jet grouting pile cut-pff wall there are lock floor when tops hydro-structure, to form the antiseepage of closing
System usually simply will be directly protruding into the tops such as bottom plate hydro-structure, form rigid connection at the top of cut-pff wall；Or in antiseepage
One layer of soil cement is laid between wall top portion and top hydro-structure, junction is caused to form weak part.Due in water conservancy and hydropower
In engineering, building is while larger vertical load is born, usually also subject to larger horizontal loads, cut-pff wall top
It differs larger with the top water conservancy project rigidity of structure, leads to cut-pff wall and top hydro-structure vertical and horizontal there are larger differences
Mutation shape, and then be easy to cause the two junction and destroy, poor reliability, anti-seepage effect is bad, easily forms penetrating passage, after
Phase processing is difficult, and the two junction is link the weakest.
Invention content
In view of the above-mentioned problems, the present invention is intended to provide a kind of connection structure at the top of high-pressure rotary jet grouting pile cut-pff wall, with
It solves conventional high-tension rotary churning pile cut-pff wall top contact position close bad and wall and top water conservancy project malformation is adapted to
The problem of energy force difference.
The technical solution of the present invention that solves the problems, such as is：A kind of connection structure at the top of high-pressure rotary jet grouting pile cut-pff wall, packet
The top hydro-structure above high-pressure rotary jet grouting pile cut-pff wall is included, between high-pressure rotary jet grouting pile cut-pff wall and top hydro-structure
Equipped with profiled beam, the profiled beam includes pedestal, at least one fitting portion being set on pedestal；
The top hydro-structure is equipped with the groove that permissible fitting portion is inserted into；
It is fixedly connected at the top of the pedestal and high-pressure rotary jet grouting pile cut-pff wall, fitting portion is inlaid into the groove of top hydro-structure；
On the outer profile of profiled beam, every the position that is contacted with top hydro-structure is needed to be equipped with flexible material layer.
Said program can be by dabbing at the top of cut-pff wall, realizing the good contact of cut-pff wall and profiled beam pedestal；Pass through
Fitting portion is set, inserted docking is realized, enhances the reliability of closing；By setting flexible material layer, avoid being rigidly connected, it is right
Cut-pff wall and the vertical and level difference deformation of top hydro-structure have good conformity ability.
Preferably, the longitudinal section of the profiled beam is convex shape, and horizontal component is pedestal, and vertical component is chimeric for one
Portion.
Further, the profiled beam is reinforced concrete structure, inside profiled beam, positioned at the friendship of fitting portion and pedestal
Battery limit (BL) domain is provided with arrangement of reinforcement.Arrangement of reinforcement is set in this position, to enhance the local anti-pressure ability of contact site, profiled beam is avoided to exist
Local compression occurs under larger vertical load to destroy, while enhance the horizontal shear strength of abrupt-change cross section, it is broken to prevent shearing
It is bad.
Further, it is surrounded positioned at the outer surface of fitting portion side flexible material layer equipped with prefabricated board, the prefabricated board
Upper end is abutted with concordant, lower end at the top of fitting portion with the flexible material layer on pedestal outer profile.On the one hand prefabricated board may act as mould
Plate uses；On the other hand, it is ensured that profiled beam and the close contact of top hydro-structure.
Preferably, the flexible material layer on fitting portion outer profile is made of pitch.
Preferably, the flexible material layer on pedestal outer profile is made of pitch Chinese fir board or closed-cell foam plate.
To ensure to inlay with reference to effect, with high-pressure rotary jet grouting pile cut-pff wall with width, fitting portion width is not less than the pedestal
20cm。
The present invention remarkable result be：The closing reliability of high-pressure rotary jet grouting pile cut-pff wall and top hydro-structure is improved,
There is good conformity ability to the vertical and level difference deformation of high-pressure rotary jet grouting pile cut-pff wall and top hydro-structure, it is ensured that anti-
The safe and reliable of system is oozed, construction is convenient, is with a wide range of applications in hydraulic and hydroelectric engineering field.
Description of the drawings
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is profiled beam structure chart of the present invention.
Fig. 2 is the present invention for the attachment structure schematic diagram at the top of high-pressure rotary jet grouting pile cut-pff wall.
Fig. 3 is in Fig. 2 I partial enlarged view.
In figure：1- high-pressure rotary jet grouting pile cut-pff walls；2- profiled beams；3- arrangements of reinforcement；4- flexible material layers；5- prefabricated boards；6- pedestals；
7- fitting portions；8- tops hydro-structure.
Specific embodiment
As shown in Figures 1 to 3, a kind of connection structure at the top of high-pressure rotary jet grouting pile cut-pff wall, including being located at high-pressure rotary-spray
The top hydro-structure 8 of 1 top of stake cut-pff wall.
Profiled beam 2 is equipped between high-pressure rotary jet grouting pile cut-pff wall 1 and top hydro-structure 8.The longitudinal section of the profiled beam 2
For convex shape, horizontal component is pedestal 6, and vertical component is a fitting portion 7.The profiled beam 2 is reinforced concrete structure.
Arrangement of reinforcement 3 is provided with inside profiled beam 2, positioned at fitting portion 7 and the juncture area of pedestal 6.Arrangement of reinforcement use HPB300, diameter 8~
12mm。
For the pedestal 6 with high-pressure rotary jet grouting pile cut-pff wall 1 with width, 7 width of fitting portion is not less than 20cm.
The top hydro-structure 8 is equipped with the groove that permissible fitting portion 7 is inserted into.
The pedestal 6 is fixedly connected with 1 top of high-pressure rotary jet grouting pile cut-pff wall.Fitting portion 7 is inlaid into top hydro-structure 8
In groove.
On the outer profile of profiled beam 2, every the position that is contacted with top hydro-structure 8 is needed to be equipped with flexible material layer
4。
Flexible material layer 4 on 7 outer profile of fitting portion is made of pitch.Positioned at the flexibility of 7 outer profile of fitting portion
Material layer 4 not only can guarantee high-pressure rotary jet grouting pile cut-pff wall 1 and the closing contact of top hydro-structure 8 under Action of Vertical Loads, but also
It can absorb vertically and horizontal distortion, high-pressure rotary jet grouting pile cut-pff wall 1 and top hydro-structure 8 is avoided to generate excessive differential deformation, increase
The structure safety reliability of strong cut-pff wall.
Flexible material layer 4 on 6 outer profile of pedestal is made of pitch Chinese fir board or closed-cell foam plate.Positioned at pedestal
Flexible material layer 7 on 6 outer profiles can ensure the closed docking of high-pressure rotary jet grouting pile cut-pff wall 1 and top hydro-structure 8, simultaneously
Digest high-pressure rotary jet grouting pile cut-pff wall 1 and the vertical differential deformation of top hydro-structure 8.
Prefabricated board 5 is equipped with being surrounded positioned at the outer surface of 7 side flexible material layer 4 of fitting portion.5 upper end of prefabricated board with
7 top of fitting portion is concordant, lower end is abutted with the flexible material layer 4 on 6 outer profile of pedestal.
By top hydro-structure 8 for for concrete structure, Specific construction step is as follows：
1）1 top of high-pressure rotary jet grouting pile cut-pff wall modify and dabbing is handled；
2）Template, and the good arrangement of reinforcement 3 of banding fixed, casting concrete are fixed in its both sides along 1 axis of high-pressure rotary jet grouting pile cut-pff wall
Profiled beam 2；
3）Before 2 initial set of profiled beam, 2 surface of profiled beam is arranged in by flexible material layer 4 is smooth；
4）After the completion for the treatment of that profiled beam 2 pours（Time is not less than 1d）, then in 7 both sides design position of fitting portion fix cement mortar
Prefabricated board 5.5 one side of prefabricated board may act as template use；On the other hand, it is ensured that profiled beam 2 and later stage top hydro-structure 8
Close contact.Then, according to actual conditions, lateral support is carried out at a certain distance in the axial direction, then be perfused into slot
Pitch；
5）It treats that pitch solidifies substantially, pours top hydro-structure 8, form complete 1 connection structure of high-pressure rotary jet grouting pile cut-pff wall.
Claims (7)
1. a kind of connection structure at the top of high-pressure rotary jet grouting pile cut-pff wall, including being located at high-pressure rotary jet grouting pile cut-pff wall（1）Top
Top hydro-structure（8）, it is characterised in that：In high-pressure rotary jet grouting pile cut-pff wall（1）With top hydro-structure（8）Between be equipped with it is different
Ellbeam（2）, the profiled beam include pedestal（6）, be set to pedestal（6）On at least one fitting portion（7）；
The top hydro-structure（8）It is equipped with permissible fitting portion（7）The groove of insertion；
The pedestal（6）With high-pressure rotary jet grouting pile cut-pff wall（1）Top is fixedly connected, fitting portion（7）It is inlaid into top hydro-structure
（8）Groove in；In profiled beam（2）Outer profile on, it is every needs with top hydro-structure（8）The position of contact is equipped with soft
Property material layer（4）.
2. the connection structure according to claim 1 at the top of high-pressure rotary jet grouting pile cut-pff wall, it is characterised in that：It is described different
Ellbeam（2）Longitudinal section for convex shape, horizontal component is pedestal（6）, vertical component is a fitting portion（7）.
3. the connection structure according to claim 1 or 2 at the top of high-pressure rotary jet grouting pile cut-pff wall, it is characterised in that：Institute
State profiled beam（2）For reinforced concrete structure, in profiled beam（2）It is internal, positioned at fitting portion（7）With pedestal（6）Juncture area
It is provided with arrangement of reinforcement（3）.
4. the connection structure according to claim 1 at the top of high-pressure rotary jet grouting pile cut-pff wall, it is characterised in that：Positioned at
Fitting portion（7）Side flexible material layer（4）Outer surface surround be equipped with prefabricated board（5）, the prefabricated board（5）Upper end and fitting portion
（7）Top is concordant, lower end and pedestal（6）Flexible material layer on outer profile（4）It abuts.
5. the connection structure being used at the top of high-pressure rotary jet grouting pile cut-pff wall according to claims 1 or 2 or 4, it is characterised in that：
Positioned at fitting portion（7）Flexible material layer on outer profile（4）It is made of pitch.
6. the connection structure according to claim 1 or 2 at the top of high-pressure rotary jet grouting pile cut-pff wall, it is characterised in that：Position
In pedestal（6）Flexible material layer on outer profile（4）It is made of pitch Chinese fir board or closed-cell foam plate.
7. the connection structure according to claim 1 or 2 at the top of high-pressure rotary jet grouting pile cut-pff wall, it is characterised in that：Institute
State pedestal（6）With high-pressure rotary jet grouting pile cut-pff wall（1）With wide, fitting portion（7）Width is not less than 20cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810232639.0A CN108222045B (en) | 2018-03-21 | 2018-03-21 | Connection structure for top of high-pressure jet grouting pile diaphragm wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810232639.0A CN108222045B (en) | 2018-03-21 | 2018-03-21 | Connection structure for top of high-pressure jet grouting pile diaphragm wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108222045A true CN108222045A (en) | 2018-06-29 |
| CN108222045B CN108222045B (en) | 2023-11-07 |
Family
ID=62658868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810232639.0A Active CN108222045B (en) | 2018-03-21 | 2018-03-21 | Connection structure for top of high-pressure jet grouting pile diaphragm wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108222045B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109338995A (en) * | 2018-09-28 | 2019-02-15 | 李敬文 | A kind of cut-pff wall hydro-expansive rubber plate |
| CN111350348A (en) * | 2020-03-19 | 2020-06-30 | 中国十七冶集团有限公司 | Positioning and reinforcing device for outer wall anti-seepage inverted beam template and construction method |
| CN114673185A (en) * | 2022-04-11 | 2022-06-28 | 安徽水安建设集团股份有限公司 | Comprehensive anti-seepage system for temporary road for construction of temporary channel and construction method |
| CN115030203A (en) * | 2022-07-18 | 2022-09-09 | 南京宇正建设工程有限公司 | Construction structure and construction method of high-pressure jet grouting impervious wall |
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2018
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|---|---|---|---|---|
| CN109338995A (en) * | 2018-09-28 | 2019-02-15 | 李敬文 | A kind of cut-pff wall hydro-expansive rubber plate |
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| CN111350348A (en) * | 2020-03-19 | 2020-06-30 | 中国十七冶集团有限公司 | Positioning and reinforcing device for outer wall anti-seepage inverted beam template and construction method |
| CN114673185A (en) * | 2022-04-11 | 2022-06-28 | 安徽水安建设集团股份有限公司 | Comprehensive anti-seepage system for temporary road for construction of temporary channel and construction method |
| CN115030203A (en) * | 2022-07-18 | 2022-09-09 | 南京宇正建设工程有限公司 | Construction structure and construction method of high-pressure jet grouting impervious wall |
| CN115030203B (en) * | 2022-07-18 | 2024-01-05 | 南京宇正建设工程有限公司 | Construction structure of high-pressure rotary spraying impervious wall and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108222045B (en) | 2023-11-07 |
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