CN107419730A - With reference to the pattern foundation pit supporting structure water-retaining structure and method of High-pressure Spiral Spray Technology - Google Patents
With reference to the pattern foundation pit supporting structure water-retaining structure and method of High-pressure Spiral Spray Technology Download PDFInfo
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- CN107419730A CN107419730A CN201710549690.XA CN201710549690A CN107419730A CN 107419730 A CN107419730 A CN 107419730A CN 201710549690 A CN201710549690 A CN 201710549690A CN 107419730 A CN107419730 A CN 107419730A
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- foundation ditch
- reinforcement
- water
- building enclosure
- spray technology
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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
- 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
-
- 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
- E02D19/20—Restraining of underground water by damming or interrupting the passage of underground water by displacing the water, e.g. by compressed air
-
- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Foundations (AREA)
Abstract
The present invention relates to a kind of pattern foundation pit supporting structure water-retaining structure of combination High-pressure Spiral Spray Technology and method, the structure includes enclosing located at foundation ditch periphery and for the building enclosure of foundation ditch described in supporting；From reinforcement of the building enclosure in the side of the foundation ditch implantation building enclosure；The reinforcement is attached in the building enclosure close to the side of the foundation ditch；And dash barrier is formed in the side churning concrete in the building enclosure close to the foundation ditch using High-pressure Spiral Spray Technology, the reinforcement is anchored by the dash barrier.Beneficial effects of the present invention are to be implanted into support pile and using High-pressure Spiral Spray Technology in foundation ditch medial surface churning concrete formation dash barrier using by reinforcement, so as to add the versatility of pattern foundation pit supporting structure water-retaining structure and ensure that dewatering effect.
Description
Technical field
The present invention relates to technical field of building construction, refers in particular to a kind of pattern foundation pit supporting structure water-retaining structure of combination High-pressure Spiral Spray Technology
And method.
Background technology
During building structure construction, pattern foundation pit supporting structure dewatering construction is operated typically according to inspection of the scene of a crime information, geology
Condition, water level conditions etc., bank protection supporting, plate brad supporting, support pile supporting and support pile is taken to add the compound supporting such as anchor cable to arrange
Apply.
General pattern foundation pit supporting structure dewatering construction length has that foundation ditch area is larger, and precipitation can not realize that gamut covers, and often result in
Water impact supporting construction on the outside of foundation ditch, cause deep pit monitor hidden danger to increase, or even the hidden dangers in project such as Leakage of Foundation Pit occur, it is difficult to
Administer.
General pattern foundation pit supporting structure precipitation carries out supporting frequently with support pile combination anchor cable, and drop is set in combination with support pile periphery
Well precipitation, coordinate construction operation in foundation ditch.
On the one hand, to precipitation coverage rate in large-scale excavation there is certain limitation in this supporting dewatering construction method, drop
When well debugging precipitation power is excessive, produces surrounding road and building level of ground water reduction speed is excessive, cause road network to ftracture
Or differential settlement occurs for surrounding building and the accident such as cave in；Or dewatering well is set in foundation ditch, cause consequent effects work
The problem of journey construction.
On the other hand, this construction method is difficult to ensure that on the outside of foundation ditch that water level is less than foundation ditch bottom absolute altitude, and underground soil, which exists, to be contained
Water enriches layer, radial water stream impact foundation pit supporting construction in the layer be present, or even Leakage of Foundation Pit and gush phenomenon be present.
The content of the invention
A kind of the defects of it is an object of the invention to overcome prior art, there is provided pattern foundation pit supporting structure of combination High-pressure Spiral Spray Technology
Water-retaining structure and method, can solve original pattern foundation pit supporting structure water-retaining structure and limitation be present and asking for dewatering effect can not be ensured
Topic.
Realizing the technical scheme of above-mentioned purpose is：
The invention provides a kind of pattern foundation pit supporting structure water-retaining structure of combination High-pressure Spiral Spray Technology, including：
Enclose located at foundation ditch periphery and for the building enclosure of foundation ditch described in supporting；
From reinforcement of the building enclosure in the side of the foundation ditch implantation building enclosure；The reinforcement
It is attached in the building enclosure close to the side of the foundation ditch；And
Using High-pressure Spiral Spray Technology dash is formed in the side churning concrete in the building enclosure close to the foundation ditch
Barrier, the reinforcement is anchored by the dash barrier.
The invention has the advantages that it is implanted into support pile and using High-pressure Spiral Spray Technology on the inside of foundation ditch using by reinforcement
Churning concrete in face forms dash barrier, so as to add the versatility of pattern foundation pit supporting structure water-retaining structure and ensure that dewatering effect.
The present invention combine High-pressure Spiral Spray Technology pattern foundation pit supporting structure water-retaining structure further improvement is that, the reinforcement bag
Include transverse steel and longitudinal reinforcement；The end of the transverse steel is implanted into the building enclosure, longitudinal reinforcement interval colligation
In the transverse steel.
The present invention combine High-pressure Spiral Spray Technology pattern foundation pit supporting structure water-retaining structure further improvement is that, in addition to colligation in
The bar-mat reinforcement on the reinforcement surface and the soil nailing for the bar-mat reinforcement to be fixed on to building enclosure, the soil nailing pass through the steel
Muscle net simultaneously through the building enclosure and inserts the peripheral soil body of foundation ditch from the transverse steel and longitudinal reinforcement junction.
The present invention combine High-pressure Spiral Spray Technology pattern foundation pit supporting structure water-retaining structure further improvement is that, in addition to be arranged in
The drainpipe of the dash barrier, one end of the drainpipe are inserted in the soil body of the foundation ditch periphery, and the other end is placed in institute
State inside foundation ditch；End in the soil body of foundation ditch periphery is enclosed with filter layer, and absolute altitude is higher than the absolute altitude of the other end,
So that the water in the soil body of foundation ditch periphery is flowed into inside foundation ditch by the drainpipe.
The present invention combine High-pressure Spiral Spray Technology pattern foundation pit supporting structure water-retaining structure further improvement is that, in addition to be opened in
The water leg of the bottom of foundation ditch, the immersible pump being placed in the water leg and one end are connected at the top of the immersible pump, are another
The drinking-water pipe that one end is placed in outside foundation ditch, the water leg correspond to the end set that the drainpipe is located inside foundation ditch so that warp
The water entered by the drainpipe in the foundation ditch falls into the water leg and is delivered to base by the immersible pump and drinking-water pipe
Hole is outer.
Present invention also offers a kind of pattern foundation pit supporting structure dash method of combination High-pressure Spiral Spray Technology, comprise the following steps：
Building enclosure in the construction of foundation ditch periphery for foundation ditch described in supporting；
One reinforcement is provided, the reinforcement is gone along with sb. to guard him from the building enclosure close to described in the implantation of the side of the foundation ditch
Structure and it is attached in the building enclosure close to the foundation ditch side；And
Using High-pressure Spiral Spray Technology dash is formed in the side churning concrete in the building enclosure close to the foundation ditch
Barrier, the reinforcement is anchored by the dash barrier.
The present invention combine High-pressure Spiral Spray Technology pattern foundation pit supporting structure dash further improvements in methods be, the reinforcement bag
Transverse steel and longitudinal reinforcement are included, the reinforcement is gone along with sb. to guard him from the building enclosure close to described in the implantation of the side of the foundation ditch
Structure and being attached in the building enclosure includes close to the foundation ditch side：
The end of the transverse steel is implanted into the building enclosure, by longitudinal reinforcement interval colligation in the transverse direction
Reinforcing bar.
The present invention combine High-pressure Spiral Spray Technology pattern foundation pit supporting structure dash further improvements in methods be, in addition to：
A bar-mat reinforcement is provided, by the bar-mat reinforcement colligation in the reinforcement surface；
Multiple soil nailings are provided, by the soil nailing through the bar-mat reinforcement and from the transverse steel and longitudinal reinforcement junction
Through the building enclosure and the soil body of insertion foundation ditch periphery, so as to which the bar-mat reinforcement is fixed on into building enclosure.
The present invention combine High-pressure Spiral Spray Technology pattern foundation pit supporting structure dash further improvements in methods be, in addition to：
Multiple drainpipes are provided, wrap up filter layer in one end of the drainpipe, and the drainpipe is inclined upwardly ground
Through the dash barrier and insert in the soil body of foundation ditch periphery, make in the soil body that filter layer is located at outside the foundation ditch, and
The other end is placed in inside the foundation ditch, so that the water in the soil body of foundation ditch periphery is flowed into foundation ditch by the drainpipe
Portion.
The present invention combine High-pressure Spiral Spray Technology pattern foundation pit supporting structure dash further improvements in methods be, in addition to：
Water leg is opened up in the end position that the bottom of foundation ditch, the corresponding drainpipe are located inside foundation ditch, so that
The water entered via the drainpipe in the foundation ditch falls into the water leg；
Multiple immersible pumps are provided, the immersible pump is placed in the water leg at regular intervals；
Multiple drinking-water pipes are provided, one end of the drinking-water pipe is connected to corresponding immersible pump, the other end is placed in outside foundation ditch,
And the water in the water leg is delivered to outside foundation ditch by the immersible pump and drinking-water pipe.
Brief description of the drawings
Fig. 1 is that the present invention combines the pattern foundation pit supporting structure water-retaining structure of High-pressure Spiral Spray Technology and the structural representation of method.
Fig. 2 be the present invention combine High-pressure Spiral Spray Technology pattern foundation pit supporting structure water-retaining structure and method in drainpipe and anchor cable just
View.
Fig. 3 is support pile and high-pressure rotary-spray in the pattern foundation pit supporting structure water-retaining structure of the invention for combining High-pressure Spiral Spray Technology and method
The engaged top view of stake.
Fig. 4 is to eliminate high-pressure rotary jet grouting pile in pattern foundation pit supporting structure water-retaining structure and method of the present invention with reference to High-pressure Spiral Spray Technology
Reinforcement be anchored in the top view of support pile.
Fig. 5 is the structural representation of reinforcement in the pattern foundation pit supporting structure water-retaining structure of the invention for combining High-pressure Spiral Spray Technology and method
Figure.
Fig. 6 is that waist rail is set up in poppet in the pattern foundation pit supporting structure water-retaining structure of the invention for combining High-pressure Spiral Spray Technology and method
Schematic diagram.
Fig. 7 is the sectional view in A-A faces in Fig. 6.
Fig. 8 is the structural representation of drainpipe in the pattern foundation pit supporting structure water-retaining structure of the invention for combining High-pressure Spiral Spray Technology and method
Figure.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Refering to Fig. 1, the invention provides a kind of pattern foundation pit supporting structure water-retaining structure of combination High-pressure Spiral Spray Technology and method, solves
The problem of limitation being present and dewatering effect can not be ensured in original pattern foundation pit supporting structure water-retaining structure.
The pattern foundation pit supporting structure water-retaining structure for combining High-pressure Spiral Spray Technology to the present invention below in conjunction with the accompanying drawings illustrates.
As shown in Figure 1, Figure 2 with shown in Fig. 6, the pattern foundation pit supporting structure water-retaining structure that the present invention combines High-pressure Spiral Spray Technology includes：Go along with sb. to guard him
Structure, high-pressure rotary jet grouting pile 21, dash barrier 22, cable wire 31, waist rail 32, poppet 33, drainpipe 41, water leg 44, immersible pump 42,
Drainpipe 43, dewatering well 51, treatment on slope layer 61.
Wherein, building enclosure includes enclosing located at the periphery of foundation ditch 10 and is inserted in multiple supportings of the soil body of foundation ditch periphery 11
Stake 20 and be fixedly arranged on support pile 20 top Guan Liang, multiple support piles 20 are connected by Guan Liang.
As shown in figures 1 and 3, building enclosure also includes the high-pressure rotary jet grouting pile being snapped between two neighboring support pile 20
21, high-pressure rotary jet grouting pile 21 can reach certain dash effect, and the center of high-pressure rotary jet grouting pile 21 is more leaned on compared with the center of support pile 20
Nearly foundation ditch periphery 11 so that close to the side of foundation ditch 10 formed with confession between two adjacent support piles 20 and high-pressure rotary jet grouting pile 21
The spray shield space 201 of construction dash barrier 22.In a preferred embodiment, the length of high-pressure rotary jet grouting pile 21 is not less than
6000mm, and according to soil property situation, make its absolute altitude consistent with the soil layer absolute altitude that radial direction current are larger, so as to reach dash effect
While reduce cost.
As shown in Fig. 4 to Fig. 5, for dash barrier 22 located at support pile 20 close to the side of foundation ditch 10, it includes reinforcement
221st, the concrete structure that bar-mat reinforcement 222, soil nailing 223 and high-pressure rotary-spray are formed.
Reinforcement 221 is attached in building enclosure close to the side of foundation ditch 10, for being fixedly connected with support pile 20, and is risen
The effect for reinforcing dash barrier 22 is arrived.Reinforcement 221 includes transverse steel 2211 and longitudinal reinforcement 2212.Transverse steel 2211
End be implanted into the building enclosure, specifically, the end of transverse steel 2211 makes its anchor connection in phase by tendon-planted craft
Between two adjacent support piles 20, so that reinforcement 221 is fixedly connected with support pile 20.Longitudinal reinforcement 2212 is spaced colligation
In transverse steel 2211, the stability of reinforcement 221 is added.Soil nailing 223 is from transverse steel 2211 and vertical reinforcement 2212
Junction is vertically inserted in the soil body, for transverse steel 2211 and longitudinal reinforcement 2212 to be fixed on into the soil body, while also acts as and adds
Gu the effect of the soil body.As a preferred embodiment, transverse steel 2211 be a diameter of 18mm elongated reinforcing bar, bar planting depth
For 80mm, the bar dowel that vertical reinforcement 2212 is a diameter of 18mm, length is 0.4m, soil nailing 223 is a diameter of 25mm reinforcing bar.
The colligation of bar-mat reinforcement 222 in the surface of reinforcement 221, soil nailing 223 through the bar-mat reinforcement and from the transverse steel and
Longitudinal reinforcement junction is through the building enclosure and inserts the soil body of foundation ditch periphery, and bar-mat reinforcement 222 is fixed on into building enclosure.
Dash barrier 22 is formed in the side churning concrete in building enclosure close to foundation ditch 10 using High-pressure Spiral Spray Technology, because spray is protected
The presence in space 201, gap be present between reinforcement 221 and high-pressure rotary jet grouting pile 21 so that the dash barrier 22 that churning is formed is more
Anchor reinforcement 221 and bar-mat reinforcement 222 well, and dash barrier 22 be brought into close contact it is close in support pile 20 and high-pressure rotary jet grouting pile 21
The surface of the side of foundation ditch 10, so as to connect and to be formed reinforcement 221, bar-mat reinforcement 222, support pile 20 and high-pressure rotary jet grouting pile 21
One, has reached more preferably supporting and dash effect.As a preferred embodiment, bar-mat reinforcement 222 be a diameter of 6.5mm,
Level interval is not more than 200mm, and vertical spacing is not more than 400mm two-way concrete slab net.
As shown in figures 1 to 6, waist rail 32 it is horizontal located at dash barrier 22 close to the side of foundation ditch, including elongated setting
Two I-shaped components 321, bottom batten plate 322, top batten plate 323 and anchor head bearing plate.Wherein, bottom batten plate 322 is affixed on branch
The outer surface of fender pile 20；I-shaped component 321 is set in two rows, is affixed on the outer surface of bottom batten plate 322, and two I-shaped structures
Formed with the gap passed through for anchor cable 31 between part 321；Anchor head bearing plate is affixed on the outer surface of two I-shaped components 321, is used for
Increase the stability of waist rail 32；Top batten plate 323 is affixed on the outer surface of the anchor head bearing plate.Bottom batten plate 322, top batten plate
323 and anchor head bearing plate on offer the through hole passed through for anchor cable 31.Now, anchor cable 31 is set perpendicular to support pile 20.
As a preferred embodiment, top batten plate 323 is 206mm*116mm*8mm steel plate, and bottom batten plate is 302mm*
116mm*8mm steel plate, anchor head bearing plate are 206mm*250mm*20mm steel plate.
In another preferably embodiment, the thickness of anchor head bearing plate becomes larger from upper end to lower end, so that its
Side forms an inclined plane, for providing stress point when anchor cable 31 is obliquely installed.Anchor head bearing plate is located at the He of I-shaped component 321
Between top batten plate 323, top batten plate 323 is affixed on the inclined plane.Preferably, anchor head bearing plate is right angled triangle or straight
The angle of the trapezoidal steel member in angle, the inclined plane and vertical direction is 15 °.
With reference to Fig. 1, Fig. 2, anchor cable 31 is arranged in the space between support pile 20, for by dash barrier 22 and support pile 20
Drawknot is fixed on the soil body of foundation ditch periphery 11.One end that anchor cable 31 inserts the soil body is installed with anchoring piece, so as to which anchor cable 31 be fixed
In the soil body；The other end is through waist rail 32 and is screwed with a nut, and the nut is resisted against the top batten plate 323 of waist rail 32, so as to
Anchor cable 31 is in exceptionally straight state, and then dash barrier 22 and the drawknot of support pile 20 are fixed on to the soil body of foundation ditch periphery 11, protect
The stability of dash barrier is demonstrate,proved.As a preferred embodiment, level interval is not more than 1500mm, and vertical spacing is not more than
3000mm, the depth for anchoring into soil layer are not less than 13m.
As shown in Figure 6 and Figure 7, poppet 33 includes fixed steel bars 331, vertical plate 332 and transverse plate 333.Fixed steel bars 331
Its one end is anchored in support pile 20 by the technique of bar planting, the other end is placed in the surface of support pile 20, for vertical plate 332
It is welded and fixed.Transverse plate 333 is fixedly arranged on the top of vertical plate 332, and the top of transverse plate 333 is formed with a support face, for holding
Hold in the palm waist rail 32.One end that vertical plate 332 convexedly stretches in the surface of support pile 20 with fixed steel bars 331 is welded and fixed, so as to by vertical plate
332 and transverse plate 333 be fixed on the surface of support pile 20, and vertical plate 332 serves the effect of support transverse plate 333.As one
Preferred embodiment, fixed steel bars 331 are set in two rows, and the length being implanted into support pile 20 is 200mm, transverse plate
333 are installed with the space for setting reinforcement 221 and bar-mat reinforcement 222 with the surface of support pile 20, and the space is 50mm；Transverse plate
333 be 350mm*180mm*10mm steel plate, and vertical plate 332 is 100mm*400mm*400mm right-angled trapezium steel plate.
As shown in Figure 2 and Figure 8, in addition to the drainpipe 41 of dash barrier is arranged in, one end of drainpipe 41 is inserted in base
In the soil body of hole periphery 11, the other end is placed in inside foundation ditch 10；End absolute altitude in the soil body of foundation ditch periphery 11 is higher than another
The absolute altitude of one end so that drainpipe 41 is easy to the water in the soil body of foundation ditch periphery 11 to flow into foundation ditch 10 towards the inner inclination of foundation ditch 10
Inside, and then by drainpipe 41 mitigate put on dash barrier 22 radial direction hydraulic pressure effect, enhance dash barrier
22 stability.As a preferred embodiment, the pvc that drainpipe 41 is a diameter of 100mm is managed, and length 300mm, it inclines
Oblique angle is 5 °, and the level interval that drainpipe is set is not more than 2300mm, and vertical spacing is not more than 4000mm.
The portion envelops that drainpipe 41 is located in the soil body of foundation ditch periphery 11 have filter layer 411, prevent in the soil body and the soil body
Impurity block drainpipe 41.Filter layer 411 is wrapped in the gauze of the outer surface of drainpipe 41 and is wrapped in gauze outer surface
Metalling, it is preferable that the thickness of metalling is not less than 100mm.
As shown in figure 1, water leg 44 is opened in the bottom of foundation ditch 10, and corresponding drainpipe 41 is located at the end inside foundation ditch 10
Set, so that the water entered via drainpipe 41 in foundation ditch 10 falls into water leg 44.Immersible pump 42 is placed at regular intervals
In water leg 44, one end of drinking-water pipe 43 be connected to corresponding to the top of immersible pump 42, the other end be placed in outside foundation ditch, immersible pump 42 will
Water in water leg 44 is extracted out, and is delivered to via drinking-water pipe 43 outside foundation ditch.
As shown in figure 1, the soil body of the dewatering well 51 located at the periphery of foundation ditch 11, and the elevation of bottom of dewatering well 51 is less than foundation ditch bottom
Portion's absolute altitude, ensure that the water level of the soil body of the periphery of foundation ditch 11 is less than bottom of foundation ditch absolute altitude.
As shown in figure 1, treatment on slope layer 61 is located at the slope between the top of support pile 20 and ground, support pile 20 is prevented
Underground water in the soil body between top and ground is flowed into foundation ditch 10.Treatment on slope layer 61 is by laying bar-mat reinforcement and in the steel
The mode of high-pressure rotary-spray concrete makes to be formed at muscle net.
The pattern foundation pit supporting structure dash method for combining High-pressure Spiral Spray Technology to the present invention below in conjunction with the accompanying drawings illustrates.
As shown in figure 1, in the construction of the periphery of foundation ditch 10 for the building enclosure of supporting foundation pit 10.
The building enclosure of constructing includes：As shown in figures 1 and 3, in the periphery of foundation ditch 10 open up multiple first stake holes and according to
It is required that arrangement of reinforcement, arrangement of reinforcement forms spaced support pile 20 after concrete perfusion in the first stake holes；The supporting of completion to be onstructed
After stake 20 reaches design strength requirement, in the range of designed elevation, specifically, in the elevation range that soil layer radial direction current enrich
It is interior, the second stake holes is opened up between two adjacent support piles 20, the center of the second stake holes is more leaned on compared with the center of support pile 20
Nearly foundation ditch periphery 11, and High Pressure Reinforced Concrete churning is formed into the high-pressure rotary-spray being mutually twisted with support pile 20 in the second stake holes
Stake 21.Now, kept off between adjacent two support piles 20 and high-pressure rotary jet grouting pile 21 close to the side of foundation ditch 10 formed with supplying to construct
The spray shield space 201 of water barrier 22.
As shown in Figure 4 and Figure 5, after support pile 20 and high-pressure rotary jet grouting pile 21 reach design strength, there is provided a reinforcement
221, reinforcement 221 close to the side of foundation ditch 10 and is attached at branch from support pile 20 close to the side of foundation ditch 10 implantation support pile 20
Close to the foundation ditch side on fender pile 20.Specifically, reinforcement 221 includes transverse steel 2211 and longitudinal reinforcement 2212, by horizontal stroke
Flatly it is implanted between two adjacent support piles 20 by tendon-planted craft to the end of reinforcing bar 2211, so that reinforcement
221 are fixedly connected with support pile 20.Longitudinal reinforcement 2212 is spaced colligation in transverse steel 2211, adds reinforcement 221
Stability.
A bar-mat reinforcement 222 is provided, by the colligation of bar-mat reinforcement 222 in the surface of reinforcement 221.
Multiple soil nailings 223 are provided, by soil nailing 223 through bar-mat reinforcement 222 and from transverse steel 2211 and longitudinal reinforcement 2212
Junction extends perpendicularly through support pile 20 and inserts the soil body of the periphery of foundation ditch 10, so as to which reinforcement 221 and bar-mat reinforcement 222 be fixed
In support pile 20, while also act as the effect of soil mass consolidation.
Dash barrier 22 is formed in the side churning concrete in building enclosure close to foundation ditch 10 using High-pressure Spiral Spray Technology,
Due to the presence in spray shield space 201, gap be present between reinforcement 221 and high-pressure rotary jet grouting pile 21 so that the dash that churning is formed
Barrier 22 preferably anchors reinforcement 221 and bar-mat reinforcement 222, and dash barrier 22 is brought into close contact in support pile 20 and high-pressure rotary-spray
Stake 21 connects reinforcement 221, bar-mat reinforcement 222, support pile 20 and high-pressure rotary jet grouting pile 21 close to the surface of the side of foundation ditch 10
One is formed, has reached more preferably supporting and dash effect.
As shown in Figure 6 and Figure 7, there is provided a poppet 33, including fixed steel bars 331, vertical plate 332 and transverse plate 333.Will be solid
The one end for determining reinforcing bar 331 is inserted support pile 20 by tendon-planted craft and is anchored in wherein, and the other end is placed in the surface of support pile 20,
Fixed with the surface soldered of vertical plate 332.Transverse plate 333 is fixedly welded on to the top of vertical plate 332, the top of transverse plate 333
Portion is formed with a support face, and now, transverse plate 333 is not only fixed on the surface of support pile 20 by vertical plate 332, also acts support
The effect of transverse plate 333.
As shown in figures 1 to 6, there is provided a waist rail 32, vertically specify elevation location is horizontal to be located at water screen waist rail 32
Barrier 22 is placed on poppet 33 close to the side of foundation ditch 10.Specifically, waist rail includes two I-shaped components of elongated setting
321st, bottom batten plate 322, top batten plate 323 and anchor head bearing plate；First in bottom batten plate 322, top batten plate 323 and anchor
Through hole is opened up on head bearing plate；Then bottom batten plate 322 is affixed on to the outer surface of support pile 20；I-shaped component 321 is arranged to
Two rows and make to be affixed on two I-shaped components 321 formed with the gap passed through for anchor cable 31 between two I-shaped components 321
The outer surface of bottom batten plate 322 and welding；Anchor head bearing plate is affixed on to the outer surface of two I-shaped components 321, for increasing waist
The stability of beam 32；Top batten plate 323 is finally affixed on to the outer surface of the anchor head bearing plate, that is, completes the setting of waist rail 32.
With reference to Fig. 1 and Fig. 2, there is provided an anchor cable 31, anchor cable 31 is arranged in into the space between support pile 20, for by dash
Barrier 22 and the drawknot of support pile 20 are fixed on the soil body of foundation ditch periphery 11.Specifically, to soil body internal drilling, by one end of anchor cable 31
Anchoring piece is formed in patchhole and in injecting mortar in hole, so as to which anchor cable 31 is anchored in into the soil body；The other end is passed through into waist rail 32
And a nut is screwed togather, the nut is tightened so that the nut is resisted against the top batten plate 323 of waist rail 32, so that anchor cable 31 is in taut
Straight state, and then dash barrier 22 and the drawknot of support pile 20 are fixed on to the soil body of foundation ditch periphery 11, it ensure that dash barrier
Stability.
As shown in Figure 2 and Figure 8, there is provided a drainpipe 41, filter layer 411 is wrapped up in one end of drainpipe 41, and by draining
Pipe 41 passes through dash barrier 22 and inserted in the soil body of foundation ditch periphery 11 with being inclined upwardly, and filter layer 411 is located at foundation ditch periphery
In 11 soil body, and the other end is placed in inside foundation ditch 10, so that the water in the soil body of foundation ditch periphery 11 passes through drainpipe 41
Flow into inside foundation ditch 10, and then mitigate the effect for the radial direction hydraulic pressure for putting on dash barrier 22 by drainpipe 41, enhancing
The stability of dash barrier 22.
As shown in figure 1, open up water leg in the end position that the bottom of foundation ditch 10, corresponding drainpipe 41 are located inside foundation ditch 10
44, so that the water entered via drainpipe 41 in foundation ditch 10 falls into water leg 44；Multiple immersible pumps 42 are provided, by immersible pump 42
It is placed at regular intervals in water leg 44；Multiple drinking-water pipes 43 are provided, one end of drinking-water pipe 43 is connected to corresponding immersible pump
42, the other end is placed in outside foundation ditch 10, is extracted out the water in water leg 44 by immersible pump 42, and be delivered to base via drinking-water pipe 43
Hole is outer.
The present invention combines having the beneficial effect that for the pattern foundation pit supporting structure water-retaining structure of High-pressure Spiral Spray Technology：
Kept off using reinforcement to be implanted into support pile and be formed using High-pressure Spiral Spray Technology in foundation ditch medial surface churning concrete
Water barrier, so as to add the versatility of pattern foundation pit supporting structure water-retaining structure and ensure that dewatering effect.And then put on to mitigate
Radial direction hydraulic pressure on dash barrier, drainpipe is arranged in dash barrier and corresponding drainpipe opens up water leg in bottom of foundation ditch,
So that the water entered via drainpipe inside foundation ditch is fallen into water leg, and dived under water by the immersible pump in water leg and connection
The drinking-water pipe of pump drains into water outside foundation ditch.
The present invention is described in detail above in association with accompanying drawing embodiment, those skilled in the art can be according to upper
State and bright many variations example is made to the present invention.Thus, some details in embodiment should not form limitation of the invention, this
Invention will be used as protection scope of the present invention using the scope that appended claims define.
Claims (10)
- A kind of 1. pattern foundation pit supporting structure water-retaining structure of combination High-pressure Spiral Spray Technology, it is characterised in that including：Enclose located at foundation ditch periphery and for the building enclosure of foundation ditch described in supporting；From reinforcement of the building enclosure in the side of the foundation ditch implantation building enclosure；The reinforcement is sticked In the side in the building enclosure close to the foundation ditch；AndDash barrier is formed in the side churning concrete in the building enclosure close to the foundation ditch using High-pressure Spiral Spray Technology, The reinforcement is anchored by the dash barrier.
- 2. the pattern foundation pit supporting structure water-retaining structure of High-pressure Spiral Spray Technology is combined as claimed in claim 1, it is characterised in that the reinforcement Muscle includes transverse steel and longitudinal reinforcement；The end of the transverse steel is implanted into the building enclosure, the longitudinal reinforcement interval Colligation is in the transverse steel.
- 3. the pattern foundation pit supporting structure water-retaining structure of High-pressure Spiral Spray Technology is combined as claimed in claim 2, it is characterised in that also include tying up The bar-mat reinforcement on the reinforcement surface and the soil nailing for the bar-mat reinforcement to be fixed on to building enclosure are tied in, the soil nailing passes through institute State bar-mat reinforcement and pass through the building enclosure from the transverse steel and longitudinal reinforcement junction and insert the soil body of foundation ditch periphery.
- 4. the pattern foundation pit supporting structure water-retaining structure of High-pressure Spiral Spray Technology is combined as claimed in claim 1, it is characterised in that also include wearing Located at the drainpipe of the dash barrier, one end of the drainpipe is inserted in the soil body of the foundation ditch periphery, and the other end is put Inside the foundation ditch；End in the soil body of foundation ditch periphery is enclosed with filter layer, and absolute altitude is higher than the other end Absolute altitude, so that the water in the soil body of foundation ditch periphery is flowed into inside foundation ditch by the drainpipe.
- 5. the pattern foundation pit supporting structure water-retaining structure of High-pressure Spiral Spray Technology is combined as claimed in claim 4, it is characterised in that also include opening Water leg located at the bottom of foundation ditch, the immersible pump being placed in the water leg and one end are connected to the immersible pump top The drinking-water pipe that portion, the other end are placed in outside foundation ditch, the water leg correspond to the end set that the drainpipe is located inside foundation ditch, made The water entered in the foundation ditch via the drainpipe is obtained to fall into the water leg and convey by the immersible pump and drinking-water pipe To outside foundation ditch.
- 6. a kind of pattern foundation pit supporting structure dash method of combination High-pressure Spiral Spray Technology, it is characterised in that comprise the following steps：Building enclosure in the construction of foundation ditch periphery for foundation ditch described in supporting；One reinforcement is provided, the reinforcement is implanted into the building enclosure from the building enclosure close to the side of the foundation ditch And it is attached in the building enclosure close to the foundation ditch side；AndDash barrier is formed in the side churning concrete in the building enclosure close to the foundation ditch using High-pressure Spiral Spray Technology, The reinforcement is anchored by the dash barrier.
- 7. the pattern foundation pit supporting structure dash method of High-pressure Spiral Spray Technology is combined as claimed in claim 6, it is characterised in that the reinforcement Muscle includes transverse steel and longitudinal reinforcement, by the reinforcement from the building enclosure close to described in the implantation of the side of the foundation ditch Building enclosure and being attached in the building enclosure includes close to the foundation ditch side：The end horizontal of the transverse steel is implanted into the building enclosure, by longitudinal reinforcement interval colligation in the transverse direction Reinforcing bar.
- 8. the pattern foundation pit supporting structure dash method of High-pressure Spiral Spray Technology is combined as claimed in claim 6, it is characterised in that also include：A bar-mat reinforcement is provided, by the bar-mat reinforcement colligation in the reinforcement surface；Multiple soil nailings are provided, the soil nailing is passed through through the bar-mat reinforcement and from the transverse steel and longitudinal reinforcement junction The building enclosure and the soil body of insertion foundation ditch periphery, so as to which the bar-mat reinforcement is fixed on into building enclosure.
- 9. the pattern foundation pit supporting structure dash method of High-pressure Spiral Spray Technology is combined as claimed in claim 6, it is characterised in that also include：Multiple drainpipes are provided, wrap up filter layer in one end of the drainpipe, and the drainpipe is passed through with being inclined upwardly The dash barrier is simultaneously inserted in the soil body of foundation ditch periphery, is made in the soil body that filter layer is located at outside the foundation ditch, and another End is placed in inside the foundation ditch, so that the water in the soil body of foundation ditch periphery is flowed into inside foundation ditch by the drainpipe.
- 10. the pattern foundation pit supporting structure dash method of High-pressure Spiral Spray Technology is combined as claimed in claim 6, it is characterised in that also include：Water leg is opened up in the end position that the bottom of foundation ditch, the corresponding drainpipe are located inside foundation ditch, so that via The water that the drainpipe enters in the foundation ditch falls into the water leg；Multiple immersible pumps are provided, the immersible pump is placed in the water leg；Multiple drinking-water pipes are provided, one end of the drinking-water pipe are connected to corresponding immersible pump, the other end is placed in outside foundation ditch, and is led to Cross the immersible pump and drinking-water pipe the water in the water leg is delivered to outside foundation ditch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710549690.XA CN107419730A (en) | 2017-07-07 | 2017-07-07 | With reference to the pattern foundation pit supporting structure water-retaining structure and method of High-pressure Spiral Spray Technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710549690.XA CN107419730A (en) | 2017-07-07 | 2017-07-07 | With reference to the pattern foundation pit supporting structure water-retaining structure and method of High-pressure Spiral Spray Technology |
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| CN107419730A true CN107419730A (en) | 2017-12-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112900446A (en) * | 2021-01-19 | 2021-06-04 | 中建八局第一建设有限公司 | Soil supporting and concentrated water drainage system between deep foundation pit retaining piles |
| CN113073656A (en) * | 2021-05-06 | 2021-07-06 | 北京城建勘测设计研究院有限责任公司 | Inter-pile soil protection structure of support pile and construction method thereof |
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