CN208009461U - 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
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- CN208009461U CN208009461U CN201820382345.1U CN201820382345U CN208009461U CN 208009461 U CN208009461 U CN 208009461U CN 201820382345 U CN201820382345 U CN 201820382345U CN 208009461 U CN208009461 U CN 208009461U
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- China
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- pressure rotary
- jet grouting
- rotary jet
- grouting pile
- pff wall
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Abstract
The utility model discloses a kind of connection structures at the top of high-pressure rotary jet grouting pile cut-pff wall, it include 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 for 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 utility model 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 utility model belongs to hydraulic and hydroelectric engineering technology, and in particular to a kind of at the top of high-pressure rotary jet grouting pile cut-pff wall
Connection 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 when the tops hydro-structure such as lock floor, to form closed antiseepage
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
It is laid with one layer of soil cement 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 bearing larger vertical load, usually also subject to larger horizontal loads, cut-pff wall top
It differs larger with the top water conservancy project rigidity of structure, causes cut-pff wall and top hydro-structure vertical and horizontal there is larger difference
Mutation shape, and then be easy to cause the two junction and destroy, poor reliability, anti-seepage effect is bad, is easy to form penetrating passage, after
Phase processing is difficult, and the two junction is the link of weakness the most.
Utility model content
In view of the above-mentioned problems, the utility model is intended to provide a kind of connection knot at the top of high-pressure rotary jet grouting pile cut-pff wall
Structure to solve conventional high-tension rotary churning pile cut-pff wall top contact position close bad, and becomes wall and top hydro-structure
The problem of shape adaptability difference.
The technical solution that the utility model solves the problems, such as is：A kind of connection knot at the top of high-pressure rotary jet grouting pile cut-pff wall
Structure includes the top hydro-structure above high-pressure rotary jet grouting pile cut-pff wall, in high-pressure rotary jet grouting pile cut-pff wall and top water conservancy project knot
Profiled beam is equipped between structure, the profiled beam includes pedestal, at least one fitting portion for 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
It is interior；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 that cut-pff wall is contacted with the good of profiled beam pedestal；Pass through
Fitting portion is set, realizes inserted docking, enhances closed reliability；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 one chimeric
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.In this position, setting arrangement of reinforcement avoids profiled beam from existing to enhance the local anti-pressure ability of contact site
Local compression occurs under larger vertical load to destroy, while enhancing the horizontal shear strength of abrupt-change cross section, it is broken to prevent shearing
It is bad.
Further, it is surrounded equipped with prefabricated board, the prefabricated board positioned at the outer surface of fitting portion side flexible material layer
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 the close contact of profiled beam and 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 in conjunction with effect, with high-pressure rotary jet grouting pile cut-pff wall with width, fitting portion width is not less than the pedestal
20cm。
The remarkable result of the utility model is：It improves high-pressure rotary jet grouting pile cut-pff wall and the closing of top hydro-structure is reliable
Property, 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
Seepage control system it is safe and reliable, construction is convenient, is with a wide range of applications in hydraulic and hydroelectric engineering field.
Description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the utility model profiled beam structure chart.
Fig. 2 is the utility model for the attachment structure schematic diagram at the top of high-pressure rotary jet grouting pile cut-pff wall.
The partial enlarged view that Fig. 3 is in Fig. 2 I.
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；The tops 8- hydro-structure.
Specific implementation mode
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 it is 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.
It is provided with arrangement of reinforcement 3 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 the closing contact of high-pressure rotary jet grouting pile cut-pff wall 1 and 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 guarantee 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.
It is equipped with prefabricated board 5 being surrounded positioned at the outer surface of 7 side flexible material layer 4 of fitting portion.5 upper end of the 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 taking top hydro-structure 8 is concrete structure as an example, steps are as follows for Specific construction：
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 are fixed in its both sides along 1 axis of high-pressure rotary jet grouting pile cut-pff wall, is poured mixed
Solidifying soil 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 of waiting for 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 water conservancy project
The close contact of structure 8.Then, according to actual conditions, lateral support is carried out at a certain distance in the axial direction, then into slot
Asphalt reperfusion；
5）It waits for that pitch solidifies substantially, pours top hydro-structure 8, form the complete connection of high-pressure rotary jet grouting pile cut-pff wall 1 knot
Structure.
Claims (7)
1. a kind of connection structure at the top of high-pressure rotary jet grouting pile cut-pff wall, including it is 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 includes 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 be convex shape, horizontal component be 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）Inside is located 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 claim 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 |
|---|---|---|---|
| CN201820382345.1U CN208009461U (en) | 2018-03-21 | 2018-03-21 | A kind of connection structure at the top of high-pressure rotary jet grouting pile cut-pff wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820382345.1U CN208009461U (en) | 2018-03-21 | 2018-03-21 | A kind of connection structure at the top of high-pressure rotary jet grouting pile cut-pff wall |
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| Publication Number | Publication Date |
|---|---|
| CN208009461U true CN208009461U (en) | 2018-10-26 |
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ID=63890154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820382345.1U Active CN208009461U (en) | 2018-03-21 | 2018-03-21 | A kind of connection structure at the top of high-pressure rotary jet grouting pile cut-pff wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222045A (en) * | 2018-03-21 | 2018-06-29 | 中国电建集团中南勘测设计研究院有限公司 | A kind of connection structure at the top of high-pressure rotary jet grouting pile cut-pff wall |
-
2018
- 2018-03-21 CN CN201820382345.1U patent/CN208009461U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222045A (en) * | 2018-03-21 | 2018-06-29 | 中国电建集团中南勘测设计研究院有限公司 | A kind of connection structure at the top of high-pressure rotary jet grouting pile cut-pff wall |
| CN108222045B (en) * | 2018-03-21 | 2023-11-07 | 中国电建集团中南勘测设计研究院有限公司 | Connection structure for top of high-pressure jet grouting pile diaphragm wall |
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