CN110080248A - Nearly depth of water foundation pit supporting construction - Google Patents
Nearly depth of water foundation pit supporting construction Download PDFInfo
- Publication number
- CN110080248A CN110080248A CN201910474721.9A CN201910474721A CN110080248A CN 110080248 A CN110080248 A CN 110080248A CN 201910474721 A CN201910474721 A CN 201910474721A CN 110080248 A CN110080248 A CN 110080248A
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- Prior art keywords
- foundation pit
- side slope
- water
- deep
- supporting construction
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- 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
-
- 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
- E02D19/10—Restraining of underground water by lowering level of ground water
-
- 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
Abstract
The invention belongs to supporting construction technical fields, more particularly to nearly depth of water foundation pit supporting construction, including water-stop curtain, the soil nailing through water-stop curtain is fixed in first side slope and the second side slope, hole bottom reinforcing pile is equipped in foundation pit, deep-well group is also provided in foundation pit, this supporting mechanism is by using deep-mixed pile as the water-stop curtain in the peripheral side of foundation pit, playing lateral seal prevents water from penetrating into, and to the fixed soil nailing of original soil body in the first side slope and the second side slope, support reinforcement is carried out to the foundation pit of excavation, avoid pattern foundation pit supporting structure deformed damaged, hole bottom reinforcing pile is opened up in the bottom of foundation pit, the soil property of bottom of foundation ditch is reinforced, it avoids loosening, and deep-well group is offered for reducing groundwater level；The present invention has the water-stagnating effect for guaranteeing deep basal pit, but meet supporting construction security and stability requirement and being capable of investment reduction, the advantages of shortening the construction period.
Description
Technical field
The invention belongs to supporting construction technical fields, and in particular to nearly depth of water foundation pit supporting construction.
Background technique
With rapid development of economy, building gradually develops to high-rise large area, and the requirement of Civil Air Defense Facilities is more next
Stringenter, almost all of high-rise has basement, puts lower garage etc., narrow field construction skyscraper is deep in city
Basis, basement or underground structure, some excavation of foundation pit depth are deeper, and pattern foundation pit supporting structure is to guarantee Underground Construction and base
The safety for cheating surrounding enviroment, to supporting and retaining system, reinforcing and safeguard measure that foundation pit side-wall and surrounding enviroment use, underground water is to deep basal pit
The especially close depth of water foundation pit of engineering significantly affects, and level of ground water is greatly reduced, and drainage area soil body effective stress can be caused to increase
Add, to cause the sedimentation of foundation pit peripheral ground, or even causes the destruction of close to buildings, head difference caused by precipitation will make soil
The aggravation of body seepage action of ground water even destroys so as to cause the deformation of foundation pit supporting construction, needs a kind of new supporting construction thus,
Not only it ensure that the water-stagnating effect of deep basal pit, but also met the security and stability requirement of supporting construction.
Summary of the invention
The purpose of the invention is to overcome the deficiencies in the prior art, and provide a kind of for neighbouring rivers, lake, beach
The characteristics of deep footing groove enclosing structure of equal water bodys, by the water control thought of " only drop combines ", using deep-mixed pile as sealing
Curtain, row lateral seal close to foundation pit cheat the interior nearly depth of water base for using " deep-well group " precipitation and not impacting to ambient enviroment
Pit supporting construction.
The object of the present invention is achieved like this, nearly depth of water foundation pit supporting construction, including water-stop curtain, the water-stop curtain
Top connect cement plate, offer gutter on the cement plate, one end of the close foundation pit of the cement plate is connected with the
One side slope passes through water-stop curtain in first side slope and is fixed with soil nailing, is also equipped with steel mesh coagulation in first side slope
Native surface layer, the bottom end of the steel fibre reinforced concrete surface layer are connected with beams of concrete, and the lower part of the beams of concrete is equipped with mini pile,
The other side of the beams of concrete connects the second side slope, and second side slope is fixed with soil nailing, second side into original soil body
Slope is equipped with steel fibre reinforced concrete surface layer, and concrete connection pier is prefabricated in the steel fibre reinforced concrete surface layer of second side slope,
It is connected with steel plate on the concrete connection pier, supporting steel is welded on the steel plate, second side slope bottom connects foundation pit
Hole bottom surface, hole bottom reinforcing pile is equipped in the foundation pit, the hole bottom reinforcing pile top at the close second Slope bottom is prefabricated with
Trapezoidal reinforcing pier, the trapezoidal reinforcing pier connect the other end of supporting steel, are also provided with deep-well group, the deep-well in the foundation pit
Group is made of multiple deep-wells, and the deep-well includes wall casing, screen pipe, and the screen pipe is connected to the lower part of wall casing, described
The outside package connection filter screen of screen pipe, the lower end of the screen pipe is connected with shaft bottom filter plug, the wall casing and screen pipe
Outside be filled with grit, the outside filling clay that the wall casing export close to deep-well.
The vertical and horizontal interval between reinforcing bar in the steel fibre reinforced concrete surface layer is 200mm, steel mesh coagulation
Native surface layer with a thickness of 5~10cm, the cement of used mortar and the ratio of sandstone are 1 to 4, and sand coarse aggregate ratio is 45%~55%.
The soil nailing is bored grouting type soil nailing, and the length of soil nailing is 6m or 8m.
The soil nailing laterally and longitudinally between be divided into 1.5m, mutual distance interval error is less than ± 100mm, hole
Diameter error is less than ± 10mm, and the inclination angle of the soil nailing and horizontal direction is 14 °~20 °.
The concrete connection pier is structure as a whole with the steel fibre reinforced concrete panel in the second side slope, and the steel plate passes through
Default pour is fixedly connected on concrete connection pier；The trapezoidal connection reinforced pier and cheat bottom reinforcing pile is also by default
It pours and is fixedly connected, the trapezoidal reinforcing pier is identical as the connection type of the connection type of supporting steel lower end and upper end.
The interval laterally and longitudinally of the hole bottom reinforcing pile is 5~8m.
The vertical height of first side slope is 3/5ths of the depth of foundation pit, and first side slope and horizontal direction are pressed from both sides
Angle is 45 °~55 °.
The vertical height of second side slope is 2/5ths of foundation depth, second side slope and horizontal direction angle
It is 30 °~45 °.
Beneficial effects of the present invention: this supporting mechanism is by using deep-mixed pile as stopping in the peripheral side of foundation pit
Water curtain plays lateral seal and water is prevented to penetrate into, and to the fixed soil nailing of original soil body in the first side slope and the second side slope, to excavation
Foundation pit carry out support reinforcement, avoid pattern foundation pit supporting structure deformed damaged, the bottom of foundation pit open up hole bottom reinforcing pile, to bottom of foundation ditch
Soil property reinforced, avoid loosening, and offer deep-well group for reducing groundwater level；Specific in use, first
It measures, defence line, positioning, using deep-mixed pile suitable position again, by deep-mixed pile in the periphery of foundation pit, even
The water except foundation pit is prevented laterally to penetrate into for carrying out lateral closing to foundation pit as water-stop curtain at closed one
Enter in foundation pit；It is laid with cement plate on the top of water-stop curtain, gutter is opened up on the outside of cement plate, for dredging ground area in time
Water avoids the water on ground from penetrating into downwards in the original soil body of foundation pit；The first side slope and second are offered on the inside of water-stop curtain
Side slope is equipped with beams of concrete between the first side slope and the second side slope, is connected in the lower part of concrete slab down-set micro-
Soil nailing is respectively connected in type stake, the first side slope and the second side slope, soil nailing is inserted into the original soil body within water-stop curtain, and is passed through only
Water curtain is also equipped with steel fibre reinforced concrete surface layer, steel fibre reinforced concrete surface layer and soil nailing in the first side slope and the second side slope
Outer end be connected, be connected in the steel fibre reinforced concrete surface layer in the second side slope concrete connection pier, and by supporting steel company
It connects on the trapezoidal reinforcing pier on the bottom reinforcing pile of hole, soil nailing, water-stop curtain, mini pile, supporting steel and steel fibre reinforced concrete surface layer
For carrying out support reinforcement to the original soil body on foundation pit side, this reinforcing mode is easier to realize, being capable of investment reduction and time；In base
The bottom in hole is equipped with hole bottom reinforcing pile for reinforcing to the soil property in foundation pit, and has the common work of multiple deep-wells in foundation pit
The deep-well group for making and forming, deep-well group are used for groundwater abstraction, achieve the purpose that lowering of watertable with this；The present invention has i.e.
Guarantee deep basal pit water-stagnating effect, and meet supporting construction security and stability requirement and can investment reduction, shorten work
The advantages of phase.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the nearly depth of water foundation pit supporting construction of the present invention.
Fig. 2 is the deep-well structural representation of nearly depth of water foundation pit supporting construction of the invention.
Fig. 3 is cross-sectional view at the A-A of Fig. 2.
Fig. 4 is cross-sectional view at the B-B of Fig. 2.
Fig. 5 is the partial enlarged view at the C of Fig. 1.
In figure: 1, original soil body 2, soil nailing 3, water-stop curtain 4, mini pile 5, deep-well 6, hole bottom reinforcing pile 61, trapezoidal
Reinforce pier 7, the second side slope 8, beams of concrete 9, the first side slope 10, cement plate 11, gutter 12, foundation pit 13, steel mesh
Concrete topping 131, concrete connect pier 132, steel plate 14, supporting steel 51, screen pipe 52, strainer 53, grit
54, plug is considered in wall casing 55, clay 56, shaft bottom.
Specific embodiment
Explanation further is done to the present invention with reference to the accompanying drawing:
Embodiment 1
As shown in Figs. 1-5, the top of nearly depth of water foundation pit supporting construction, including water-stop curtain 3, the water-stop curtain 3 connects cement
Plate 10 offers gutter 11 on the cement plate 10, and one end of the close foundation pit of the cement plate 10 is connected with the first side slope
9, water-stop curtain 3 is passed through in first side slope 9 and is fixed with soil nailing 2, is also equipped with steel fibre reinforced concrete in first side slope 9
Surface layer 13, the bottom end of the steel fibre reinforced concrete surface layer 13 are connected with beams of concrete 8, and the lower part of the beams of concrete 8 is equipped with micro-
The other side of type stake 4, the beams of concrete 8 connects the second side slope 7, and second side slope 7 is fixed with soil nailing 2 into original soil body 1,
Second side slope 7 is equipped with steel fibre reinforced concrete surface layer 13, prefabricated in the steel fibre reinforced concrete surface layer 13 of second side slope 7
There is concrete to connect pier 131, is connected with steel plate 132 on the concrete connection pier 131, is welded with support on the steel plate 132
Steel 14, the hole bottom surface of 7 bottom of the second side slope connection foundation pit 12 are equipped with hole bottom reinforcing pile 6 in the foundation pit, described close to the
6 top of hole bottom reinforcing pile of two side slopes, 7 bottom of slope is prefabricated with trapezoidal reinforcing pier 61, and the trapezoidal pier 61 of reinforcing connects supporting steel 14
The other end is also provided with deep-well group in the foundation pit 12, and the deep-well group is made of multiple deep-wells 5, and the deep-well 5 includes the borehole wall
Pipe 54, screen pipe 51, the screen pipe 51 are connected to the lower part of wall casing 54, the outside package connection filtering of the screen pipe 51
The outside of net 52, the wall casing 54 and screen pipe 51 is filled with grit 53, and the wall casing 54 exports outer close to deep-well 5
Fill clay 55 in side.
Beneficial effects of the present invention: this supporting mechanism is by using deep-mixed pile as in the peripheral side of foundation pit 12
Water-stop curtain 3 plays lateral seal and water is prevented to penetrate into, and to the fixed soil nailing of original soil body 1 in the first side slope 9 and the second side slope 7
2, support reinforcement is carried out to the foundation pit 12 of excavation, 12 Support Deformation of foundation pit is avoided to damage, hole bottom is opened up in the bottom of foundation pit 12 and adds
Gu stake 6 reinforces the soil property of 12 bottom of foundation pit, avoids loosening, and offers deep-well 5 groups for reducing groundwater level；
Specific in use, measure first, unwrapping wire, positioning, located in place using deep-mixed pile, stirred by deep layer
Stake is mixed in the periphery of foundation pit 12, is linked to be closed one as water-stop curtain 13, for carrying out lateral closing to foundation pit 12, hinders
Only the water except foundation pit 12 laterally penetrates into foundation pit 12；It is laid with cement plate 10 on the top of water-stop curtain 3, cement plate 10
Outside opens up gutter 11, avoids the water on ground from penetrating into the original soil body 1 of foundation pit 12 downwards for dredging excess surface water in time
It is interior；The first side slope 9 and the second side slope 7 are offered in the inside of water-stop curtain 3, is equipped between the first side slope 9 and the second side slope 7
Beams of concrete 8 is connected with down-set mini pile 4 in the lower part of beams of concrete 8, connects in the first side slope 9 and the second side slope 7
It is connected to soil nailing 2, soil nailing 2 is inserted into the original soil body 1 within water-stop curtain 3, and passes through water-stop curtain 3, in the first side slope 9 and second
Steel fibre reinforced concrete surface layer 13 is also equipped in side slope 7, steel fibre reinforced concrete surface layer 13 is connected with the outer end of soil nailing 2, and second
It is connected with concrete connection pier 131 in steel fibre reinforced concrete surface layer 13 in side slope 7, and hole bottom is connected to by supporting steel 14 and is added
Gu on the trapezoidal reinforcing pier 61 in stake 6, soil nailing 2, water-stop curtain 3, mini pile 4, supporting steel 14 and steel fibre reinforced concrete surface layer 13
For carrying out support reinforcement to the original soil body 1 on 12 side of foundation pit, this reinforcing mode is easier to realize, being capable of investment reduction and time；
Hole bottom reinforcing pile 6 is equipped with for reinforcing to the soil property in foundation pit 12 in the bottom of foundation pit 12, and is had in foundation pit 12 more
A deep-well 5 works together and the deep-well group of composition, deep-well group are used for groundwater abstraction, the mesh of lowering of watertable reached with this
's；The present invention has the water-stagnating effect for guaranteeing deep basal pit 12, and meets security and stability requirement and the energy of supporting construction
The advantages of reaching investment reduction, shortening the construction period.
Embodiment 2
As shown in Figs. 1-5, the top of nearly depth of water foundation pit supporting construction, including water-stop curtain 3, the water-stop curtain 3 connects cement
Plate 10 offers gutter 11 on the cement plate 10, and one end of the close foundation pit of the cement plate 10 is connected with the first side slope
9, water-stop curtain 3 is passed through in first side slope 9 and is fixed with soil nailing 2, is also equipped with steel fibre reinforced concrete in first side slope 9
Surface layer 13, the bottom end of the steel fibre reinforced concrete surface layer 13 are connected with beams of concrete 8, and the lower part of the beams of concrete 8 is equipped with micro-
The other side of type stake 4, the beams of concrete 8 connects the second side slope 7, and second side slope 7 is fixed with soil nailing 2 into original soil body 1,
Second side slope 7 is equipped with steel fibre reinforced concrete surface layer 13, prefabricated in the steel fibre reinforced concrete surface layer 13 of second side slope 7
There is concrete to connect pier 131, is connected with steel plate 132 on the concrete connection pier 131, is welded with support on the steel plate 132
Steel 14, the hole bottom surface of 7 bottom of the second side slope connection foundation pit 1 are equipped with hole bottom reinforcing pile 6 in the foundation pit, described close to the
6 top of hole bottom reinforcing pile of two side slopes, 7 bottom of slope is prefabricated with trapezoidal reinforcing pier 61, and the trapezoidal pier 61 of reinforcing connects supporting steel 14
The other end is also provided with deep-well group in the foundation pit 12, and the deep-well group is made of multiple deep-wells 5, and the deep-well 5 includes the borehole wall
Pipe 54, screen pipe 51, the screen pipe 51 are connected to the lower part of wall casing 54, the outside package connection filtering of the screen pipe 51
The outside of net 52, the wall casing 54 and screen pipe 51 is filled with grit 53, and the wall casing 54 exports outer close to deep-well 5
Fill clay 55 in side.
For better effect, the vertical and horizontal interval between reinforcing bar in the steel fibre reinforced concrete surface layer 13 is
200mm, steel fibre reinforced concrete surface layer 13 with a thickness of 5~10cm, the cement of used mortar and the ratio of sandstone are 1 to 4, sand
Rate is 45%~55%.
For better effect, the soil nailing 2 is bored grouting type soil nailing, and the length of soil nailing 2 is 6m or 8m.
For better effect, the soil nailing 2 laterally and longitudinally between be divided into 1.5m, mutual distance interval is missed
Difference is less than ± 100mm, and aperture error is less than ± 10mm, and the inclination angle of the soil nailing 2 and horizontal direction is 14 °~20 °.
For better effect, the concrete connection pier 131 is with the steel fibre reinforced concrete panel 13 in the second side slope 7
Integral structure, the steel plate 132 are fixedly connected on concrete connection pier 131 by default pour；The trapezoidal reinforcing pier 61
Connection with hole bottom reinforcing pile 6 is also to be fixedly connected by default pour, the trapezoidal reinforcing pier 61 and 14 lower end of supporting steel
Connection type is identical with the connection type of upper end.
For better effect, the interval laterally and longitudinally of the hole bottom reinforcing pile 6 is 5~8m.
For better effect, the vertical height of first side slope 9 is 3/5ths of the depth of foundation pit 12, described the
One side slope 7 and horizontal direction angle are 45 °~55 °.
For better effect, the vertical height of second side slope 7 is 2/5ths of 12 depth of foundation pit, described second
Side slope 2 and horizontal direction angle are 30 °~45 °.
Beneficial effects of the present invention: this supporting mechanism is by using deep-mixed pile as in the peripheral side of foundation pit 12
Water-stop curtain 3 plays lateral seal and water is prevented to penetrate into, and to the fixed soil nailing of original soil body 1 in the first side slope 9 and the second side slope 7
2, support reinforcement is carried out to the foundation pit 12 of excavation, 12 Support Deformation of foundation pit is avoided to damage, hole bottom is opened up in the bottom of foundation pit 12 and adds
Gu stake 6 reinforces the soil property of 12 bottom of foundation pit, avoids loosening, and offers deep-well 5 groups for reducing groundwater level；
Specific in use, measure first, unwrapping wire, positioning, located in place using deep-mixed pile, stirred by deep layer
Stake is mixed in the periphery of foundation pit 12, is linked to be closed one as water-stop curtain 13, for carrying out lateral closing to foundation pit 12, hinders
Only the water except foundation pit 12 laterally penetrates into foundation pit 12；It is laid with cement plate 10 on the top of water-stop curtain 3, cement plate 10
Outside opens up gutter 11, avoids the water on ground from penetrating into the original soil body 1 of foundation pit 12 downwards for dredging excess surface water in time
It is interior；The first side slope 9 and the second side slope 7 are offered in the inside of water-stop curtain 3, is equipped between the first side slope 9 and the second side slope 7
Beams of concrete 8 is connected with down-set mini pile 4 in the lower part of beams of concrete 8, connects in the first side slope 9 and the second side slope 7
It is connected to soil nailing 2, soil nailing 2 is inserted into the original soil body 1 within water-stop curtain 3, and passes through water-stop curtain 3, in the first side slope 9 and second
Steel fibre reinforced concrete surface layer 13 is also equipped in side slope 7, steel fibre reinforced concrete surface layer 13 is connected with the outer end of soil nailing 2, and second
It is connected with concrete connection pier 131 in steel fibre reinforced concrete surface layer 13 in side slope 7, and hole bottom is connected to by supporting steel 14 and is added
Gu on the trapezoidal reinforcing pier 61 in stake 6, soil nailing 2, water-stop curtain 3, mini pile 4, supporting steel 14 and steel fibre reinforced concrete surface layer 13
For carrying out support reinforcement to the original soil body 1 on 12 side of foundation pit, this reinforcing mode is easier to realize, being capable of investment reduction and time；
Hole bottom reinforcing pile 6 is equipped with for reinforcing to the soil property in foundation pit 12 in the bottom of foundation pit 12, and is had in foundation pit 12 more
A deep-well 5 works together and the deep-well group of composition, deep-well group are used for groundwater abstraction, the mesh of lowering of watertable reached with this
's；The present invention has the water-stagnating effect for guaranteeing deep basal pit 12, and meets security and stability requirement and the energy of supporting construction
The advantages of reaching investment reduction, shortening the construction period.
Claims (8)
1. nearly depth of water foundation pit supporting construction, it is characterised in that: including water-stop curtain, the top of the water-stop curtain connects cement
Plate, offers gutter on the cement plate, and one end of the close foundation pit of the cement plate is connected with the first side slope, and described first
Water-stop curtain is passed through in side slope and is fixed with soil nailing, and steel fibre reinforced concrete surface layer, the reinforcing bar are also equipped in first side slope
The bottom end of net concrete topping is connected with beams of concrete, and the lower part of the beams of concrete is equipped with mini pile, the beams of concrete
The other side connects the second side slope, and second side slope is fixed with soil nailing into original soil body, and second side slope is equipped with steel mesh
Concrete topping is prefabricated with concrete connection pier, the concrete connection in the steel fibre reinforced concrete surface layer of second side slope
It is connected with steel plate on pier, supporting steel is welded on the steel plate, second side slope bottom connects the hole bottom surface of foundation pit, the base
Hole bottom reinforcing pile is equipped in hole, the hole bottom reinforcing pile top at the close second Slope bottom is prefabricated with trapezoidal reinforcing pier, described
Trapezoidal reinforcing pier connects the other end of supporting steel, is also provided with deep-well group in the foundation pit, the deep-well group is by multiple deep-well groups
At the deep-well includes wall casing, screen pipe, and the screen pipe is connected to the lower part of wall casing, the outside packet of the screen pipe
Wrap up in connection filter screen, the lower end of the screen pipe is connected with filtering plug, and the outside of the wall casing and screen pipe is filled with coarse sand
Stone, the wall casing fill clay close to the outside that deep-well exports.
2. nearly depth of water foundation pit supporting construction as described in claim 1, it is characterised in that: in the steel fibre reinforced concrete surface layer
Vertical and horizontal interval between reinforcing bar is 200mm, steel fibre reinforced concrete surface layer with a thickness of 5~10cm, used sand
The cement of slurry and the ratio of sandstone are 1 to 4, and sand coarse aggregate ratio is 45%~55%.
3. nearly depth of water foundation pit supporting construction as described in claim 1, it is characterised in that: the soil nailing is bored grouting type soil
Nail, the length of soil nailing are 6m or 8m.
4. nearly depth of water foundation pit supporting construction as claimed in claim 1 or 3, it is characterised in that: the soil nailing is laterally and longitudinally
Between be divided into 1.5m, mutual distance interval error is less than ± 100mm, and aperture error is less than ± 10mm, the soil nailing with
The inclination angle of horizontal direction is 14 °~20 °.
5. nearly depth of water foundation pit supporting construction as described in claim 1, it is characterised in that: the concrete connection pier and the second side
Steel fibre reinforced concrete panel on slope is structure as a whole, and the steel plate is fixedly connected on concrete connection pier by default pour
On；It is described it is trapezoidal to reinforce pier be also to be fixedly connected by default pour with the connection for cheating bottom reinforcing pile, the trapezoidal reinforcing pier and
The connection type of supporting steel lower end and the connection type of upper end are identical.
6. depth of water foundation pit supporting construction as described in claim 1 nearly, it is characterised in that: the transverse direction of the hole bottom reinforcing pile and vertical
To interval be 5~8m.
7. depth of water foundation pit supporting construction as described in claim 1 nearly, it is characterised in that: the vertical height of first side slope is
3/5ths of the depth of foundation pit, first side slope and horizontal direction angle are 45 °~55 °.
8. depth of water foundation pit supporting construction as described in claim 1 nearly, it is characterised in that: the vertical height of second side slope is
2/5ths of foundation depth, second side slope and horizontal direction angle are 30 °~45 °.
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| CN201910474721.9A CN110080248A (en) | 2019-06-03 | 2019-06-03 | Nearly depth of water foundation pit supporting construction |
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| CN201910474721.9A CN110080248A (en) | 2019-06-03 | 2019-06-03 | Nearly depth of water foundation pit supporting construction |
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| CN112854231A (en) * | 2021-01-11 | 2021-05-28 | 中国建筑第八工程局有限公司 | Foundation pit construction method for water saturation layer |
| CN113529743A (en) * | 2021-08-19 | 2021-10-22 | 中铁第六勘察设计院集团有限公司 | Shallow foundation pit excavation rigid frame supporting structure and construction method |
| CN113653070A (en) * | 2021-09-22 | 2021-11-16 | 山西云泉岩土工程科技股份有限公司 | Deep foundation pit side slope protective structure |
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| CN112854231A (en) * | 2021-01-11 | 2021-05-28 | 中国建筑第八工程局有限公司 | Foundation pit construction method for water saturation layer |
| CN113529743A (en) * | 2021-08-19 | 2021-10-22 | 中铁第六勘察设计院集团有限公司 | Shallow foundation pit excavation rigid frame supporting structure and construction method |
| CN113653070A (en) * | 2021-09-22 | 2021-11-16 | 山西云泉岩土工程科技股份有限公司 | Deep foundation pit side slope protective structure |
| CN113653070B (en) * | 2021-09-22 | 2022-07-12 | 山西云泉岩土工程科技股份有限公司 | Deep foundation pit side slope protective structure |
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Application publication date: 20190802 |