CN206204981U - Huge water inlet rock foundation - Google Patents
Huge water inlet rock foundation Download PDFInfo
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- CN206204981U CN206204981U CN201621080017.3U CN201621080017U CN206204981U CN 206204981 U CN206204981 U CN 206204981U CN 201621080017 U CN201621080017 U CN 201621080017U CN 206204981 U CN206204981 U CN 206204981U
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- rock foundation
- water inlet
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- concrete
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Abstract
The utility model is related to a kind of huge water inlet rock foundation.The purpose of this utility model is to provide the huge water inlet rock foundation of a kind of simple structure, easy construction, so that column foot has enough bearing capacity and resistances to overturning.The technical solution of the utility model is：A kind of huge water inlet rock foundation, face based on rock foundation surface, there is downward-sloping low-angle dip inter-laminar dislocation band in rock foundation below base surface, on rock foundation, base surface and inter-laminar dislocation band intersection are excavated displacement slot, the concrete replacement block formed after fill concrete is provided with displacement slot, the concrete replacement block is connected through system joint bar with rock foundation；Base surface and concrete replacement block top are coated with underplate concrete layer, through system dowel, dowel Shu Xianglian between underplate concrete layer and rock foundation；Underplate concrete layer in be embedded with it is some pass vertically through basis downwards, for consolidation grouting grouting guiding steel pipe.The utility model is applied to Hydraulic and Hydro-Power Engineering.
Description
Technical field
The utility model is related to a kind of huge water inlet rock foundation.Suitable for Hydraulic and Hydro-Power Engineering.
Background technology
The rock foundation of water inlet should have enough bearing capacities, resistance to overturning, osmotic stability and good change
Shape characteristic, during for the development of local fracture present in rock foundation, weak intercalated layer, karst and unstable bolck, should be dug
Except or consolidation process, meet the requirement of the aspects such as bearing capacity, Against Sliding Stability and sedimentation and deformation.
Proposed certain western Huge Power Station left bank water inlet is using the tower stratified pumping design of bank, 8 words of intake tower one
Arrange, single tower body width 33.2m, water inlet leading edge overall width is 265.6m, Parallel to the flow direction 33.5m long, is sequentially arranged and blocks
Dirty grid section, logical storehouse section, oared segrne pii and gate bay, tower body maximum height 103.0m.Each intake tower is absolute construction, Zhi Jianshe
Structural joint.
Water inlet column foot bottom basement rock is based on microcrystalline basalt, breccia lava and amygdaloidal basalt, and rock matter is hard,
Based on block and time block structure, based on III 1 classes, bearing capacity meets design requirement, low-angle dip interlayer to rock mass to rock mass structure
Disturbed belt develops position rock mass based on cataclastic texture, and local folder fault gouge, rock mass is IV or V class, and bearing capacity is unsatisfactory for will
Ask.
The content of the invention
The technical problems to be solved in the utility model is：For above-mentioned problem, there is provided a kind of simple structure, construction
Convenient huge water inlet rock foundation, so that column foot has enough bearing capacity and resistances to overturning.
The technical scheme that the utility model is used is：A kind of huge water inlet rock foundation, rock foundation surface is base
Plinth face, has downward-sloping low-angle dip inter-laminar dislocation band in the rock foundation below base surface, it is characterised in that：In rock
On ground, base surface and inter-laminar dislocation band intersection are excavated displacement slot, are formed after fill concrete is provided with the displacement slot
Concrete replacement block, the concrete replacement block is connected through system joint bar with rock foundation；The base surface and concrete replacement
Block top is coated with underplate concrete layer, through system dowel, dowel Shu Xianglian between underplate concrete layer and rock foundation；It is described
Underplate concrete layer in be embedded with it is some pass vertically through basis downwards, for consolidation grouting grouting guiding steel pipe.
The displacement slot is to be excavated to after projected depth reverse 1 along inter-laminar dislocation band aspect tendency：0.5 slope is to base
Formed behind plinth face.
The dowel beam is anchored in inter-laminar dislocation band lower wall through disk on the intercalated dislocation band.
The beneficial effects of the utility model are：The utility model is by base surface and low-angle dip inter-laminar dislocation band intersection
Slot pulling is replaced and with reference to dowel and lid weight consolidation grouting to the low-angle dip inter-laminar dislocation band system in the range of column foot certain depth
The consolidation process of system so that column foot has enough bearing capacity and resistances to overturning.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment.
Fig. 2 is the structural representation of displacement groove location in embodiment.
Fig. 3 is system dowel, the schematic diagram of dowel beam in embodiment.
Specific embodiment
As shown in figure 1, the present embodiment is a kind of huge water inlet rock foundation, based on the surface of rock foundation 1 face 11,
There is downward-sloping inter-laminar dislocation band 12 in rock foundation 1 in base surface below 11.The present embodiment is in base surface 11 and layer
Between the intersection of disturbed belt 12 excavate have displacement slot 2, fill concrete in displacement slot 2, the concrete replacement block 3 of formation, the coagulation
Native substitution block is connected through system joint bar 8 with rock foundation 1.Base plate is coated with base surface 11 and the top of concrete replacement block 3 to mix
Solidifying soil layer 4, is connected between underplate concrete layer 4 and rock foundation 1 through system dowel 5, dowel beam 6, and wherein dowel beam 6 passes through institute
Disk on inter-laminar dislocation band 12 is stated, is anchored in the lower wall of inter-laminar dislocation band 12 (Fig. 3).It is embedded with underplate concrete layer 4 some perpendicular
Direct puncture crosses the downward grouting of base surface 11 and is oriented to steel pipe 7, and the cooperation underplate concrete of steel pipe 7 layer 4 is oriented to by being in the milk carries out lid weight
Consolidation grouting, beyond displacement slot 2, consolidation grouting 13, encryption are deepened in arrangement encryption in disk certain limit on inter-laminar dislocation band 12
Deepen consolidation grouting hole 13 and pass through at least more than the 2m depth of inter-laminar dislocation band 12.
Displacement slot 2 is by being inclined to excavation to after projected depth reverse 1 along the aspect of inter-laminar dislocation band 12 in the present embodiment：
(Fig. 2) formed after 0.5 slope to base surface 11.
The concrete construction method of the present embodiment is as follows：
A, column foot stress under different operating modes, and plastic zone depth are calculated according to code requirement, draw column foot low-angle dip interlayer
The depth h of the palpus slot pulling of disturbed belt 12 is 3m；
B, slot pulling displacement：It is inclined to along inter-laminar dislocation band aspect 12 and is excavated, is dug to design slot pulling depth 3m, reverse 1:
0.5 slope completes slot pulling to base surface 11；The both sides arrangement system joint bar 4 in the displacement slot 2 for being formed, arrangement of reinforcement in groove, backfill is mixed
It is solidifying native to base surface 11；
C, system dowel：The arrangement system dowel 5 on base surface 11, exposes the certain length of base surface 11；Dowel beam 6 is arranged
In the range of 9m beyond disk, displacement slot 2 on intercalated dislocation band, disk on intercalated dislocation band is passed through, be anchored in disturbed belt lower wall, really
Upper lower burrs rock mass globality is protected, and follow-up inter-laminar dislocation band lid is in the milk again, there is no excessive lifting in upper disk rock mass；
D, lid are in the milk again：After the completion of dowel is implemented, the thick concrete of 2~3m is poured on base surface 11, form base plate coagulation
Soil layer 4, pre-buried grouting is oriented to steel pipe 7 in concrete, after after the intensity that concrete reaches design requirement, steel pipe is oriented to by being in the milk
7 carry out covering weight consolidation grouting.Consolidation grouting hole 13 is deepened in the encryption of 9m (disk on intercalated dislocation band) arrangements outside the region of displacement slot 2, really
Guarantor passes through inter-laminar dislocation band 2m above depth, is segmented consolidation grouting, strengthens non-slot pulling inter-laminar dislocation band rock mass globality.
Claims (4)
1. a kind of huge water inlet rock foundation, face (11) based on rock foundation (1) surface, in base surface (11) rock below
There is downward-sloping low-angle dip inter-laminar dislocation band (12) in stone ground, it is characterised in that：On rock foundation (1), base surface
(11) being excavated with inter-laminar dislocation band (12) intersection has displacement slot (2), is formed after fill concrete is provided with the displacement slot (2)
Concrete replacement block (3), the concrete replacement block is connected through system joint bar (8) with rock foundation (1)；The base surface (11)
And concrete replacement block (3) top is coated with underplate concrete layer (4), is passed through between underplate concrete layer (4) and rock foundation (1)
System dowel (5), dowel beam (6) are connected；Be embedded with underplate concrete layer (4) it is some pass vertically through base surface (11) to
Under, for consolidation grouting grouting be oriented to steel pipe (7).
2. huge water inlet rock foundation according to claim 1, it is characterised in that：The displacement slot (2) is along described
Inter-laminar dislocation band (12) aspect tendency is excavated to after projected depth reverse 1：0.5 slope to base surface (11) is formed afterwards.
3. huge water inlet rock foundation according to claim 1 and 2, it is characterised in that：The dowel beam (6) is through institute
Disk on inter-laminar dislocation band (12) is stated, is anchored in inter-laminar dislocation band (12) lower wall.
4. huge water inlet rock foundation according to claim 1, it is characterised in that：Underplate concrete layer (4) is thick
It is 2~3m to spend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621080017.3U CN206204981U (en) | 2016-09-26 | 2016-09-26 | Huge water inlet rock foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621080017.3U CN206204981U (en) | 2016-09-26 | 2016-09-26 | Huge water inlet rock foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206204981U true CN206204981U (en) | 2017-05-31 |
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ID=58762087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621080017.3U Active CN206204981U (en) | 2016-09-26 | 2016-09-26 | Huge water inlet rock foundation |
Country Status (1)
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| CN (1) | CN206204981U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119705A (en) * | 2017-06-19 | 2017-09-01 | 中国电建集团贵阳勘测设计研究院有限公司 | Concrete toe board foundation reinforcing structure and method placed on unloading rock mass |
| CN113216245A (en) * | 2021-04-12 | 2021-08-06 | 中国电建集团华东勘测设计研究院有限公司 | Treatment structure and construction method for alteration disintegration dikes |
-
2016
- 2016-09-26 CN CN201621080017.3U patent/CN206204981U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119705A (en) * | 2017-06-19 | 2017-09-01 | 中国电建集团贵阳勘测设计研究院有限公司 | Concrete toe board foundation reinforcing structure and method placed on unloading rock mass |
| CN113216245A (en) * | 2021-04-12 | 2021-08-06 | 中国电建集团华东勘测设计研究院有限公司 | Treatment structure and construction method for alteration disintegration dikes |
| CN113216245B (en) * | 2021-04-12 | 2022-06-14 | 中国电建集团华东勘测设计研究院有限公司 | Treatment structure and construction method for alteration disintegration dikes |
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