CN109235476A - Deep foundation pit support earth-retaining erection water-proof method and its device - Google Patents
Deep foundation pit support earth-retaining erection water-proof method and its device Download PDFInfo
- Publication number
- CN109235476A CN109235476A CN201811306225.4A CN201811306225A CN109235476A CN 109235476 A CN109235476 A CN 109235476A CN 201811306225 A CN201811306225 A CN 201811306225A CN 109235476 A CN109235476 A CN 109235476A
- Authority
- CN
- China
- Prior art keywords
- slip casting
- retaining
- earth
- foundation pit
- plastic pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Piles And Underground Anchors (AREA)
Abstract
Deep foundation pit support earth-retaining erection water-proof method of the invention includes step: S1 pulls in several slip casting perforated plastic pipes from the outside of deep basal pit side long side towards the outside of other side long side in parallel, and slip casting perforated plastic pipe is partially formed by a bindiny mechanism therebetween can breakaway-element connection；S2 pulls the drawstring being connected with bindiny mechanism to pull out a part of slip casting perforated plastic pipe of disconnection so that slip casting perforated plastic pipe partially disconnects therebetween to reuse；S3 forms the bottom breast boards of deep basal pit and the earth-retaining core wall of two long sides from the inside compaction grouting in both ends aperture of slip casting perforated plastic pipe institute shape；Vertical sealing earth-retaining perforation slip casting tube core stake is arranged in S4 on the outside of two opposite short sides of deep basal pit, forms the earth-retaining core wall of two short sides of deep basal pit.The method achieve reusing to the comprehensive supporting of deep basal pit and water proof, and to material, cost is reduced.The present invention also proposes a kind of deep foundation pit support earth-retaining water barrier device.
Description
Technical field
The present invention relates to foundation pit construction technology, in particular to a kind of deep foundation pit support earth-retaining erection water-proof method and its device.
Background technique
Deep basal pit refer to cutting depth be more than 5 meters (containing 5 meters) or three layers of basement or more (containing three layers) though or depth do not surpass
Cross 5 meters, but geological conditions and ambient enviroment and the especially complex engineering of underground utilities.Deep basal pit builds for the basis of building and provides
One space enables basis to build operation and carries out according to design in specified position.
Deep foundation pit construction must solve the problems, such as level of ground water, and at this stage, the general method drawn water using well point reduces ground
Lower water level is buried a certain number of filter pipes in foundation pit surrounding, is drawn water using pumping equipment, make to be dug that is, before excavation of foundation pit
Soil remain drying regime.There are drawbacks for the method that this well point is drawn water, on the one hand, this method belongs to artificial reduction water
The method of position expends a large amount of manpowers, and working efficiency is low；On the other hand, this method can not thoroughly solve level of ground water
Problem, after well point is drawn water, deep basal pit by underground water it is possible to influenced, to influence whole building.
Summary of the invention
To solve the deficiencies in the prior art, the present invention is directed to propose a kind of deep foundation pit support earth-retaining erection water-proof method and its dress
It sets, input cost is low, and energy is permanent, efficiently solves problem of groundwater.
To achieve the above object, deep foundation pit support earth-retaining erection water-proof method of the invention comprises the following steps:
S1: several slip casting perforation are pulled in parallel from the outside of deep basal pit side long side towards the outside of other side long side
Plastic tube, slip casting perforated plastic pipe is partially formed by a bindiny mechanism therebetween can breakaway-element connection；
S2: pulling the drawstring being connected with bindiny mechanism, so that slip casting perforated plastic pipe partially disconnects therebetween, pulls out
A part of slip casting perforated plastic pipe disconnected is to reuse；
S3: from the inside compaction grouting in both ends aperture of slip casting perforated plastic pipe institute shape, the bottom water fender of deep basal pit is formed
With the earth-retaining core wall of two long sides；
S4: vertical sealing earth-retaining perforation slip casting tube core stake is set on the outside of two opposite short sides of deep basal pit, is formed deep
The earth-retaining core wall of two short sides of foundation pit.
Further, the material of slip casting is that flyash and quick lime are mixed and stirred by the weight ratio of 100:8.
Further, the material of slip casting be flyash and quick lime, staple fiber mix and stir by the weight ratio of 100:8:1 and
At.
Further, when slip casting, retarder is added into injecting paste material, retarder accounts for the 2~8% of flyash weight.
Further, the perforation slip casting tube core stake of vertical sealing earth-retaining is before slip casting perforated plastic pipe carries out slip casting or slip casting
After construct.
The present invention also proposes a kind of deep foundation pit support earth-retaining water barrier device, includes slip casting perforated plastic pipe, slip casting perforation modeling
Expects pipe includes first part interconnected and second part, and first part and second part are formed by a bindiny mechanism and can be broken
Open type connection, bindiny mechanism include the first inner ring, the second inner ring, a pair of of clamp, spring, strut, and the first inner ring, the second inner ring are solid
Dingan County is located at the abutting end of first part and second part in the first part and second part, and a pair of of clamp is stuck in the
In one inner ring, the second inner ring, spring and strut are arranged between a pair of of clamp, and deep foundation pit support earth-retaining water barrier device also includes one
Root drawstring, connect with strut.
Further, the small concave in big bottom that is open is being presented by underground trombone slide in slip casting perforated plastic pipe below ground.
Further, bindiny mechanism is located at the bottom of concave.
Further, strut is supported between a pair of of clamp, and spring is connected between a pair of of clamp, in the assembled condition,
Spring is in tensional state.
Further, clamp extends to second part from first part, and includes a horizontal edge and two vertical edges, two vertical edges
The two sides of horizontal edge are vertically connected on, in the assembled condition, horizontal edge is contacted with the inner wall of the first inner ring, the second inner ring, two vertical edges
Respectively with the first inner ring, the outer end face contact of the second inner ring.
The beneficial effects of the present invention are: first, the middle section of slip casting perforated plastic pipe is formed using bindiny mechanism and can be broken
Open type connection, can achieve the purpose that perforate slip casting and the reuse of slip casting perforated plastic pipe, reduce and be constructed into
This.Second, injecting paste material, as primary raw material, realizes the waste utilization of flyash using flyash, and staple fiber is added, and is formed
High-intensitive, high rigidity injecting paste material, substantially increases the performance of injecting paste material.Third, slip casting perforated plastic pipe and vertical
Sealing earth-retaining perforates the stake of slip casting tube core respectively from the two of the two sides of deep basal pit width direction and bottom and deep basal pit length direction
Side carries out comprehensive supporting and water proof to deep basal pit, provides reliable and stable retaining support, and thoroughly solve underground water
The problem of influencing construction.
Detailed description of the invention
With reference to the accompanying drawing the present invention is made further to describe and illustrate.
Fig. 1 is the construction top view of the deep foundation pit support earth-retaining erection water-proof method of preferred embodiment of the invention.
Fig. 2 is the schematic diagram of the slip casting perforated plastic pipe of deep foundation pit support earth-retaining water barrier device.
Fig. 3 is the schematic diagram of the bindiny mechanism of slip casting perforated plastic pipe.
Specific embodiment
Below in conjunction with attached drawing, pass through the description to the preferred embodiment of the present invention, more clearly and completely elaboration
The technical solution of invention.
As depicted in figs. 1 and 2, the deep foundation pit support earth-retaining erection water-proof method of the preferred embodiment of the present invention, includes following step
It is rapid:
S1: several notes are pulled in parallel from the outside of outside towards the other side long side 1b of 1 side long side 1a of deep basal pit
Perforated plastic pipe 2 is starched, part can breakaway-element connection by a bindiny mechanism 3 formation therebetween for slip casting perforated plastic pipe 2.
Before step S1, the position of deep basal pit 1 is first determined, and measure the range of deep basal pit 1.Deep foundation pit support earth-retaining every
Water is constructed in the periphery of deep basal pit 1, to guarantee that the surrounding of deep basal pit 1 is supported and water proof.
As shown in Fig. 2, the small concave in big bottom that is open is being presented in slip casting perforated plastic pipe 2 below ground.In construction, note
Slurry outside of the perforated plastic pipe 2 from deep basal pit side long side 1a, the inclined downward towards deep basal pit pull in downwards, then along depth
The width direction of foundation pit stretches to other side long side 1b from deep basal pit side long side 1a, finally towards deep basal pit other side long side 1b
Outside tilt upward pull-out, thus formed a concave.The both ends of slip casting perforated plastic pipe 2 are located at deep basal pit 1 at it
The two sides of width direction W, and be uniformly distributed.
S2: pulling the drawstring 4 being connected with bindiny mechanism 3, so that part disconnects slip casting perforated plastic pipe 2 therebetween,
Pull out a part of slip casting perforated plastic pipe of disconnection reversely to reuse.
" reversed " herein refer to pulled in slip casting perforated plastic pipe in step S1 it is contrary.
Preferably, the gap of slip casting perforated plastic pipe 2 is located at the lower section of deep basal pit.
S3: being formed by the inside compaction grouting in aperture from 2 both ends of slip casting perforated plastic pipe, forms the bottom gear of deep basal pit 1
The earth-retaining core wall of native plate and two long sides.
The material of slip casting is mixed and stirred for flyash and quick lime by the weight ratio of 100:8, or is flyash, raw stone
Ash and staple fiber are mixed and stirred by the weight ratio of 100:8:1.Flyash intensifies with quick lime generation alkali to react, and is formed high-strength
Degree, high hardness material, hardness is greater than the hardness of cement, to enhance the stability of ground.The present invention is made using flyash
For the primary raw material of injecting paste material, the waste utilization of flyash is realized, and greatly reduces construction cost.
When slip casting, the retarder of major ingredient flyash weight 2~8% is added in mixing, such as desulfurized gypsum etc. is used for
Improve the mobility of injecting paste material.
Grouting amount, slip casting caliber, grouting pressure, Grouting Pipe position, slip casting tube spacing and slip casting time are according to geological conditions
Depending on groundwater condition.
S4: vertical sealing earth-retaining perforation slip casting tube core stake 5 is set on the outside of two opposite short sides of deep basal pit 1, is formed
The earth-retaining core wall of two short sides of deep basal pit 1.
Vertical sealing earth-retaining perforation slip casting tube core stake 5 can construct before slip casting perforated plastic pipe carries out slip casting, can also be with
It constructs after slip casting.Vertically the stake diameter of sealing earth-retaining perforation slip casting tube core stake 5, stake spacing, stake position and stake are long according to geology item
Depending on part and groundwater condition.
The injecting paste material of vertical sealing earth-retaining perforation slip casting tube core stake 5 and the injecting paste material of above-mentioned slip casting perforated plastic pipe 2
It is identical.
Excavation of foundation pit is carried out after the completion of slip casting perforated plastic pipe 2 and the perforation construction of slip casting tube core stake 5 of vertical sealing earth-retaining.
As shown in Figure 1 to Figure 3, deep foundation pit support earth-retaining water barrier device of the invention is constructed in the periphery of deep basal pit 1,
It includes several slip casting perforated plastic pipes 2, slip casting perforated plastic pipe 2 extends along the width direction of deep basal pit 1, in subsurface
Side carries out supporting and water proof to deep basal pit 1 in the small shape in big bottom that is open, from the two sides of 1 width direction of deep basal pit and bottom.
Slip casting perforated plastic pipe 2 includes first part 21 interconnected and second part 22,21 He of first part
Second part 22 is formed by a bindiny mechanism 3 can breakaway-element connection.Bindiny mechanism 3 is located at the centre of slip casting perforated plastic pipe 2
Part, further, positioned at the bottom of 2 concave of slip casting perforated plastic pipe.Bindiny mechanism 3 includes the first inner ring 31a, the second inner ring
31b, a pair of of clamp 32, spring 33, strut 34.First inner ring 31a and the second inner ring 31b is respectively and fixedly installed to slip casting perforation modeling
In the first part 21 and second part 22 of expects pipe, and it is located at the abutting end of first part 21 and second part 22.Clamp
The 32 and first inner ring 31a, the second inner ring 31b cooperate, and are stuck on the first inner ring 31a, the second inner ring 31b, specifically, clamp 32 is
Concave is vertically connected on the both ends of horizontal edge 32a comprising a horizontal edge 32a and two vertical edges 32b, two vertical edge 32b.In assembled state
Under, clamp 32 extends to second part 22, the inner wall of horizontal edge 32a and the first inner ring 31a, the second inner ring 31b from first part 21
Contact, two vertical edge 32b, two outer end face contacts with the first inner ring 31a, the second inner ring 31b respectively, thus by first part 21
It is connected with second part 22.Strut 34 is supported between a pair of of clamp 32, support force is provided to a pair of of clamp 32, so that one
Clamp 32 is separated from each other and is bonded with the first inner ring 31a, the second inner ring 31b.Spring 33 is connected between a pair of of clamp 32,
In the assembled condition, spring 32 is in tensional state.
Slip casting perforated plastic pipe 2 also includes a drawstring 4, and one end of drawstring 4 is connect with strut 34, and the other end stretches out slip casting
Perforated plastic pipe 2.When slip casting perforated plastic pipe 2 is arranged in below ground, drawstring 4 is pulled, drawstring 4 drives strut 34 to leave card
Between son 32, clamp 32 loses the bearing of strut 34, and spring 32 is shunk, so that a pair of clamp 32 connected to it is transported in opposite directions
It is dynamic, it is detached from the first inner ring 31a and the second inner ring 31b, thus, first part 21 and second part 22 disconnect.At this point, outward
First part 21 or the second part 22 of slip casting perforated plastic pipe 2 are pulled out, to reuse, building materials is saved, reduces construction
Cost.
Deep foundation pit support earth-retaining water barrier device also includes vertical sealing earth-retaining perforation slip casting tube core stake 5, is arranged in deep base
On the outside of two short sides in hole 1, to form retaining support and core wall on the outside of the short side of deep basal pit 1.
Only preferred embodiments of the present invention will be described for above-mentioned specific embodiment, and not to guarantor of the invention
Shield range is defined.Under the premise of not departing from design concept of the present invention and scope, those skilled in the art
Provided verbal description, attached drawing various modifications to made by technical solution of the present invention, substitution and improvement according to the present invention,
It should belong to protection category of the invention.Protection scope of the present invention is determined by claim.
Claims (10)
1. a kind of deep foundation pit support earth-retaining erection water-proof method, which is characterized in that comprise the following steps:
S1: several slip casting perforated plastics are pulled in parallel from the outside of deep basal pit side long side towards the outside of other side long side
Pipe, the slip casting perforated plastic pipe is partially formed by a bindiny mechanism therebetween can breakaway-element connection；
S2: pulling the drawstring being connected with the bindiny mechanism, so that the slip casting perforated plastic pipe partially disconnects therebetween,
A part of slip casting perforated plastic pipe of disconnection is pulled out to reuse；
S3: from the inside compaction grouting in both ends aperture of slip casting perforated plastic pipe institute shape, the bottom water fender of deep basal pit is formed
With the earth-retaining core wall of two long sides；
S4: vertical sealing earth-retaining perforation slip casting tube core stake is set on the outside of two opposite short sides of deep basal pit, forms deep basal pit
Two short sides earth-retaining core wall.
2. deep foundation pit support earth-retaining erection water-proof method as described in claim 1, which is characterized in that the material of the slip casting is fine coal
Ash and quick lime are mixed and stirred by the weight ratio of 100:8.
3. deep foundation pit support earth-retaining erection water-proof method as described in claim 1, which is characterized in that the material of the slip casting is fine coal
Ash is mixed and stirred with quick lime, staple fiber by the weight ratio of 100:8:1.
4. deep foundation pit support earth-retaining erection water-proof method as claimed in claim 2 or claim 3, which is characterized in that when slip casting, to injecting paste material
Middle addition retarder, the retarder account for the 2~8% of flyash weight.
5. deep foundation pit support earth-retaining erection water-proof method as described in claim 1, which is characterized in that the vertical sealing earth-retaining perforation
The stake of slip casting tube core is constructed before slip casting perforated plastic pipe carries out slip casting or after slip casting.
6. a kind of deep foundation pit support earth-retaining water barrier device is used for deep foundation pit support earth-retaining erection water-proof method as described in claim 1,
Include slip casting perforated plastic pipe, which is characterized in that the slip casting perforated plastic pipe includes first part interconnected and second
Part, the first part and second part by a bindiny mechanism formed can breakaway-element connect, the bindiny mechanism includes the
One inner ring, the second inner ring, a pair of of clamp, spring, strut, first inner ring, the second inner ring are fixedly mounted on described first
Point and second part in, and be located at the abutting end of the first part and second part, the pair of clamp is stuck in described first
In inner ring, the second inner ring, the spring and strut are arranged between the pair of clamp, the deep foundation pit support earth-retaining water proof dress
It sets also comprising a drawstring, is connect with the strut.
7. deep foundation pit support earth-retaining water barrier device as claimed in claim 6, which is characterized in that the slip casting perforated plastic pipe is logical
It crosses underground trombone slide and the small concave in big bottom that is open is being presented below ground.
8. deep foundation pit support earth-retaining water barrier device as claimed in claim 7, which is characterized in that the bindiny mechanism is located at described
The bottom of concave.
9. deep foundation pit support earth-retaining water barrier device as claimed in claim 8, which is characterized in that the strut is supported on described one
To between clamp, the spring is connected between the pair of clamp, and in the assembled condition, the spring is in tensional state.
10. deep foundation pit support earth-retaining water barrier device as claimed in claim 9, which is characterized in that the clamp is from first part
Second part is extended to, and includes a horizontal edge and two vertical edges, described two vertical edges are vertically connected on the two sides of the horizontal edge,
Under assembled state, the horizontal edge is contacted with the inner wall of first inner ring, the second inner ring, and described two vertical edges are respectively with described
One inner ring, the outer end face contact of the second inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811306225.4A CN109235476A (en) | 2018-11-05 | 2018-11-05 | Deep foundation pit support earth-retaining erection water-proof method and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811306225.4A CN109235476A (en) | 2018-11-05 | 2018-11-05 | Deep foundation pit support earth-retaining erection water-proof method and its device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109235476A true CN109235476A (en) | 2019-01-18 |
Family
ID=65076895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811306225.4A Withdrawn CN109235476A (en) | 2018-11-05 | 2018-11-05 | Deep foundation pit support earth-retaining erection water-proof method and its device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109235476A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236253A (en) * | 2021-05-28 | 2021-08-10 | 辽宁科技大学 | Remote automatic pipe folding and covering rock grouting method by non-bottom-pillar sublevel caving method |
-
2018
- 2018-11-05 CN CN201811306225.4A patent/CN109235476A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236253A (en) * | 2021-05-28 | 2021-08-10 | 辽宁科技大学 | Remote automatic pipe folding and covering rock grouting method by non-bottom-pillar sublevel caving method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105298507B (en) | A kind of underground pipe gallery construction method of top open cut bottom tunneler construction | |
| CN107237329A (en) | Grouting device and grouting method | |
| CN209179037U (en) | Red Sandstone compound stratum base pit dewatering constructing structure under upper cobble | |
| CN108086945B (en) | Layer-penetrating drilling separation type whole-course gas extraction hole sealing device and hole sealing method thereof | |
| CN110630211B (en) | Method for blocking overburden mining-induced fracture by ultrasonic in-situ slurry making | |
| CN206204972U (en) | A kind of prefabricated tubular pile as well-points dewatering | |
| CN209162862U (en) | Deep foundation pit support earth-retaining water barrier device | |
| CN109056701A (en) | Diaphram wall seam is anti-to stream construction method | |
| CN203702070U (en) | Coal mine low pumping lane borehole slag-returning sealing apparatus | |
| CN109235476A (en) | Deep foundation pit support earth-retaining erection water-proof method and its device | |
| CN103215945A (en) | Stereo combined power drainage solidifying system and method for soft soil foundation of heterogeneous field | |
| CN207795147U (en) | A kind of layer-through drilling separate type whole process gas drainage hole sealing device | |
| CN103742098A (en) | Device and method for sealing hole by using returned slag of layer-through drill hole of low drainage roadway of coal mine | |
| CN213014295U (en) | A slip casting fills device for handling abandonment air-raid shelter | |
| CN105569063A (en) | Collecting and utilizing method for underground water on periphery of basement retaining wall and water collecting structure | |
| CN206346221U (en) | The left and right combined type piping lane built using the pavement underground space | |
| CN102418348A (en) | Construction technology of using occlusive pile to form underground continuous wall | |
| CN204418194U (en) | For high water-permeability layer of sand foundation pit dewatering device | |
| CN207660353U (en) | A kind of upright bar bracing means in earth excavation | |
| CN202323941U (en) | Retaining wall device for manual hole digging pile | |
| CN201158823Y (en) | Recoverable impact drill steel pipe downcast well | |
| CN201635765U (en) | Sand throwing device for gob under highway | |
| CN105155622B (en) | Portable feedwater piping deslagging air bleeding valve checks system | |
| CN201047092Y (en) | Cascade combined well | |
| CN209398380U (en) | A kind of prefabricated Fang Jing for oil/gas drilling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190118 |
|
| WW01 | Invention patent application withdrawn after publication |