CN207362833U - A kind of karst cave treatment structure of diaphram wall - Google Patents
A kind of karst cave treatment structure of diaphram wall Download PDFInfo
- Publication number
- CN207362833U CN207362833U CN201721021804.5U CN201721021804U CN207362833U CN 207362833 U CN207362833 U CN 207362833U CN 201721021804 U CN201721021804 U CN 201721021804U CN 207362833 U CN207362833 U CN 207362833U
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- Prior art keywords
- wall
- hole
- karst cave
- solution cavity
- treatment structure
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Abstract
Treatment technology of karst cave field is the utility model is related to, discloses a kind of karst cave treatment structure of diaphram wall, the karst cave treatment structure of the diaphram wall includes leading wall, the rock stratum under earth's surface and the solution cavity under the rock stratum arranged on earth's surface；It is described lead wall and include be arranged in parallel two groups lead wall unit, lead for described two groups and form succeeding vat between wall unit, the direction extended in the succeeding vat along the succeeding vat is equipped with multiple pilot holes, and the pilot hole runs through the rock stratum；Steel pile casting is arranged with the pilot hole.The karst cave treatment structure of the diaphram wall of the utility model fills the fillers such as yellow mud into solution cavity by the pilot hole, can reinforce soft soil original in hole；And hole inner stuffing bearing capacity is improved to a certain degree；For the tall and big solution cavity in 10m in solution cavity hole, increase grouting treatment, reinforce original charges in solution cavity, it is ensured that the smooth grooving of diaphram wall and grooving quality, ensure construction of diaphragm wall safety.
Description
Technical field
Treatment technology of karst cave field is the utility model is related to, more particularly to a kind of karst cave treatment knot of diaphram wall
Structure.
Background technology
With the fast development of China's economy, infrastructure construction is also in expansion like a raging fire.In southern karst
Looks etc. carry out infrastructure construction at complex geologic conditions and are frequently encountered solution cavity.These solution cavities can influence portion disposed thereon
The stability of infrastructure, it is therefore desirable to solution cavity is filled so that be adapted to construct above solution cavity, without because
Ground is unstable and caves in.
Utility model content
The purpose of this utility model be to provide it is a kind of can make the smooth punching grooving of underground continuous wall groove segment without collapsing
The karst cave treatment structure collapsed.
To solve the above-mentioned problems, a kind of karst cave treatment structure of diaphram wall of the utility model offer, including arranged on
Earth's surface leads wall, the rock stratum under earth's surface and the solution cavity under the rock stratum；It is described lead wall include be arranged in parallel two
Group leads wall unit, leads for described two groups and forms succeeding vat between wall unit, the side extended in the succeeding vat along the succeeding vat
Run through the rock stratum to equipped with multiple pilot holes, the pilot hole；Steel pile casting is equipped with the pilot hole.
Preferably, the pilot hole includes upper hole section and lower hole section；The lower hole section is located at the rock
Layer, for the upper hole section between the rock stratum and earth's surface, the diameter of the lower hole section is less than the upper hole section.
Preferably, the steel pile casting is located in the upper hole section.
Preferably, multiple pilot holes are arranged at intervals.
Preferably, the wall unit of leading is C25 cast-in-situ reinforced concretes.
Preferably, in the succeeding vat both sides grout hole is equipped with along succeeding vat extending direction.
Preferably, mini-valve tube is buried in grout hole.
The utility model provides a kind of karst cave treatment structure of diaphram wall, by the pilot hole of the processing structure to
The filler such as stone filling in solution cavity, can reinforce the soft soil that consolidation is owed in former filling in hole, prevent soft soil by attached
Add and larger sedimentation and deformation is produced under stress and effect of weight, make to produce excessive gap in hole between charges and hole wall；And
Hole inner stuffing characteristic load bearing capacity is improved to a certain degree；For the tall and big solution cavity in 10m in solution cavity hole, increase grout hole, reinforce
Original charges in solution cavity, it is ensured that the smooth grooving of diaphram wall and grooving quality, ensure construction of diaphragm wall safety.
Brief description of the drawings
Fig. 1 is the schematic cross-section of the road wall in the utility model embodiment 1；
Fig. 2 is the pilot hole construction schematic diagram in the utility model embodiment 1；
Fig. 3 is the pilot hole top view in the utility model embodiment 1；
Fig. 4 is the pilot hole construction schematic diagram in the utility model embodiment 2；
Fig. 5 is the structure diagram of the mini-valve tube in the utility model embodiment 2；
Fig. 6 is the structure diagram of the slurry casting machine in the utility model embodiment 2；
Fig. 7 is structure diagram of the slurry casting machine inside floral tube mini-valve tube during slip casting in the utility model embodiment 2；
Fig. 8 is structure diagram when slurry casting machine is raised inside mini-valve tube in the utility model embodiment 2.
Wherein, 1, earth's surface；2nd, wall is led；3rd, rock stratum；4th, solution cavity；5th, wall unit is led；6th, vertical edge；7th, horizontal edge；8、
Succeeding vat；13rd, pilot hole；14th, steel pile casting；15th, upper hole section；16th, lower hole section；17 grout holes, 18, odd bits grout hole；
19th, even bit grout hole；20th, mini-valve tube；21st, real pipe mini-valve tube；22nd, floral tube mini-valve tube；23rd, extravasating hole；24th, rubber sleeve；31、
Slip casting section；32nd, slip casting pipe unit；33rd, rubber stopper；34th, injected hole.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not intended to limit the scope of the present invention.
Embodiment 1
4 processing structure of solution cavity of the diaphram wall of the present embodiment includes leading wall 2, under earth's surface 1 arranged on earth's surface 1
Rock stratum 3 and the solution cavity 4 under the rock stratum 3；4 height of solution cavity is between 6m to 10m.
As shown in Figure 1, the wall 2 of leading is C25 cast-in-situ reinforced concretes, its include being arranged in parallel two group leads wall unit 5.It is described
5 section of wall unit is led to fall " L-type ", including horizontal edge 7 and vertical edge 6, the horizontal edge 7 is located in earth's surface 1, described
Vertical edge 6 is located at earth's surface below 1, and succeeding vat 8 is formed between the described two groups vertical edge 6 for leading wall unit 5.
Multiple pilot holes 13 are equipped with along the direction of the succeeding vat 8 extension in the succeeding vat 8, as shown in Fig. 2, described
Pilot hole 13 runs through the rock stratum 3；The pilot hole 13 includes upper hole section 15 and lower hole section 16；The lower hole section 16
In the rock stratum 3, for the upper hole section 15 between the rock stratum 3 and earth's surface 1, the diameter of the lower hole section 16 is less than institute
State upper hole section 15.As shown in figure 3, it is arranged with steel pile casting 14 in the upper hole section 15.
In the present embodiment, the diameter of the upper hole section 15 and the steel pile casting 14 is 1200mm, the lower hole section 16
Diameter be 1000mm.
When the present embodiment is constructed, first the succeeding vat 8 is impacted with the block stamp of a diameter of 1200mm of punching piling machine, is rushed
The steel pile casting 14 of a diameter of 1200mm is arranged after to 4 roof strata 3 of solution cavity into hole, the block stamp for replacing a diameter of 1000mm is broken through
4 top plate of solution cavity, completes the construction of the pilot hole 13；1 pilot hole 13 is set per 6m.Again by the pilot hole 13 to described
Filling yellow mud, cement admixture or filling yellow mud, block stone, cement admixture in solution cavity 4, if repeatedly spillage can not leak stopping fill
Plain concrete is filled out, backfill material is hit into reality repeatedly using punching hammer, is essentially filled with to the solution cavity 4.Wherein, yellow mud is 3 than block stone：
1, block masonry is pointing, and particle diameter is more than 200mm and is not more than 2/3 aperture；Cohesive soil loose bulk density value
1300kg/m3, per m3Backfill material closes 50 ￣ 100kg cement, if spillage it is serious, increase cement input amount if spillage repeatedly.So
Ground can be made to become firm, without easily caving in because there is the appearance of solution cavity 4.The steel pile casting 14 can break through it is molten
Support action to hole wall, 13 hole wall collapse of pilot hole caused by mortar leakage prevention are provided after 4 top plate mud loss of hole.Lower hole section
The set-up mode that 16 diameter is less than the upper hole section 15 can further prevent 13 hole wall collapse of pilot hole, follow-up to facilitate
Construction.
Embodiment 2
As shown in figure 4,4 processing structure of solution cavity of the diaphram wall of the present embodiment and the difference of embodiment 1 are institute
The height for stating solution cavity 4 is more than 10m.And two pilot holes 13, described two pilot holes 13 are equipped with per 6m on the succeeding vat 8
It is arranged at intervals.In 8 both sides of succeeding vat grout hole 17 is equipped with along 8 extending direction of succeeding vat.The grout hole 17 is spaced 2m and sets
Put.Mini-valve tube 20 is embedded with the grout hole 17, mini-valve tube 20 is buried to solution cavity bottom.
As shown in figure 5, the mini-valve tube 20 is connected in sequence by some mini-valve tube units, and specifically, the sleeve valve
Pipe unit is long 4m, the plastic conduit of the inner wall smooth of diameter 48mm.The mini-valve tube unit includes real 21 He of pipe mini-valve tube
Floral tube mini-valve tube 22.The tube wall top of the reality pipe mini-valve tube 21 is equipped with extravasating hole 23；On the tube wall of the floral tube mini-valve tube 22
Extravasating hole 23, specifically, a diameter of 8mm of the extravasating hole 23 are equipped with every a distance.It is arranged with outside the extravasating hole 23
Rubber sleeve 24, the rubber sleeve 24 play the role of check valve, ensure that slurries can only be molten from the injection of the inside of floral tube mini-valve tube 22
Hole, prevents the slurries in solution cavity to be back to by extravasating hole 23 inside floral tube mini-valve tube 22.The mini-valve tube 20 is in solution cavity 4
Floral tube mini-valve tube 22 is arranged in altitude range, remaining position is arranged to real pipe mini-valve tube 21.Mini-valve tube 20 stretches into grout hole 17
Afterwards using the gap between clay closure 17 hole wall of mini-valve tube 20 and grout hole, to prevent slurries by mini-valve tube 20 is outer or grout hole 17
It is lost in the interior sand pebble layer from top.
The structure diagram in the slurry casting machine of 22 inside slip casting of floral tube mini-valve tube is illustrated in figure 6, the slurry casting machine includes
Slip casting section 31 and slip casting pipe unit 32, are provided with injected hole 34 in slip casting section 31, the slip casting section 31 is provided at both ends with rubber stopper
33, the diameter of 33 outmost turns of rubber stopper is identical with the internal diameter of floral tube mini-valve tube 22；The slip casting pipe unit 32 is noted by more piece
Slurry pipe is spliced.It is illustrated in figure 7 structure diagram of the slurry casting machine in the 22 inside slip casting of floral tube mini-valve tube, the slip casting section
The rubber stopper 33 at 31 both ends is close to the inner wall of floral tube mini-valve tube 22, so as to slurries are limited in the range of the either segment in slip casting region
It is irrigated, achievees the purpose that segmenting slip casting.Due to the inner wall smooth of floral tube mini-valve tube 22, rubber stopper 33 can be with slurry casting machine in flower
The inside of pipe mini-valve tube 22 moves up and down.
When length of the slip casting depth more than a section Grouting Pipe, stop slip casting, slurry casting machine is raised into a section slip casting length of tube
Distance, and remove slurry casting machine one section Grouting Pipe, then proceed to continue slip casting on remaining mini-valve tube 20.If Fig. 8 is slip casting
Structure diagram when device is raised inside mini-valve tube 20.
For 4 original charges of solution cavity, plain concrete is preferentially filled from pilot hole 13, after construction, is carried out at grouting
Reason.First to the mixed liquor of cement injection and waterglass in odd bits grout hole 18, water：Cement：Waterglass=(0.8~1.0)：1：
(0.08~0.2), grouting pressure are 0.1~0.4MPa；Then perfusion neat slurry in antithesis numerical digit grout hole 19, slurry water ash
Than for 0.5：1~1：1, grouting pressure is 0.1~0.4MPa.Spread slurries charges in solution cavity, to casting resin in solution cavity
It is hardened integral, reach solution cavity consolidation effect.Since solution cavity 4 highly increases, the volume of solution cavity 4 may increase, therefore more increases
One pilot hole 13 is preferably filled solution cavity 4, while can speed up the work.
Compared with prior art, had the following advantages by 20 slip casting of mini-valve tube：
(1) there are several upper and lower rubber sleeves 24, slurries can be limited in the range of the either segment in slip casting region and be filled
Note, achievees the purpose that segmenting slip casting, every section of slip casting height about 500mm.
(2) rubber sleeve 24 can move freely outside smooth mini-valve tube 20, can be as needed a certain section in slip casting region
Repeatedly slip-casting.
(3) according to stratum characteristic, different injecting paste materials can be used in a Grouting Pipe, selects different grouting parameters
Carry out mortar depositing construction.
To sum up, the utility model provides a kind of 4 processing structure of solution cavity of diaphram wall, according to the difference of 4 height of solution cavity
Handled using different system, fill gap in the body of hole, prevent hole wall and basic avalanche；Blocking solution cavity 4 is direct with the external world
Leak paths, prevent mud loss.The soft soil that consolidation is owed in former filling in hole is strengthened at the same time, prevents soft soil by attached
Add and larger sedimentation and deformation is produced under stress and effect of weight, make to produce excessive gap in hole between charges and hole wall；And
Hole inner stuffing characteristic load bearing capacity is improved to a certain degree.For the tall and big ground-connecting-wall groove section in 10m in 4 solution cavity hole of solution cavity, increase
Grouting treatment, reinforces charges 20 in solution cavity 4, it is ensured that smooth grooving.The steel pile casting 14 can break through 4 top plate mud of solution cavity
Support action to hole wall, hole wall collapse caused by mortar leakage prevention are provided after loss.The processing structure of the utility model can be true
The smooth grooving of diaphram wall and grooving quality are protected, ensures construction of diaphragm wall safety.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and replacement can also be made, these change
The scope of protection of the utility model is also should be regarded as into replacement.
Claims (7)
- A kind of 1. karst cave treatment structure of diaphram wall, it is characterised in that：Including leading wall, under earth's surface arranged on earth's surface Rock stratum and the solution cavity under the rock stratum；It is described lead wall and include be arranged in parallel two groups lead wall unit, described two groups are led wall Succeeding vat is formed between unit, the direction extended in the succeeding vat along the succeeding vat is equipped with multiple pilot holes, the elder generation Guide hole runs through the rock stratum；Steel pile casting is equipped with the pilot hole.
- 2. karst cave treatment structure as claimed in claim 1, it is characterised in that：The pilot hole includes upper hole section and bottom hole Section；The lower hole section is located at the rock stratum, the upper hole section between the rock stratum and earth's surface, the lower hole section Diameter is less than the upper hole section.
- 3. karst cave treatment structure as claimed in claim 2, it is characterised in that：The steel pile casting is located in the upper hole section.
- 4. karst cave treatment structure as claimed in claim 1, it is characterised in that：Multiple pilot holes are arranged at intervals.
- 5. karst cave treatment structure as claimed in claim 1, it is characterised in that：The wall unit of leading is C25 cast-in-situ reinforced concretes.
- 6. karst cave treatment structure as claimed in claim 1, it is characterised in that：In the succeeding vat both sides along succeeding vat extension side To equipped with grout hole.
- 7. karst cave treatment structure as claimed in claim 6, it is characterised in that：Mini-valve tube is embedded with the grout hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721021804.5U CN207362833U (en) | 2017-08-15 | 2017-08-15 | A kind of karst cave treatment structure of diaphram wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721021804.5U CN207362833U (en) | 2017-08-15 | 2017-08-15 | A kind of karst cave treatment structure of diaphram wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207362833U true CN207362833U (en) | 2018-05-15 |
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ID=62422124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721021804.5U Expired - Fee Related CN207362833U (en) | 2017-08-15 | 2017-08-15 | A kind of karst cave treatment structure of diaphram wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207362833U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107268603A (en) * | 2017-08-15 | 2017-10-20 | 广东省水利水电第三工程局有限公司 | The karst cave treatment structure and processing method of a kind of diaphram wall |
-
2017
- 2017-08-15 CN CN201721021804.5U patent/CN207362833U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107268603A (en) * | 2017-08-15 | 2017-10-20 | 广东省水利水电第三工程局有限公司 | The karst cave treatment structure and processing method of a kind of diaphram wall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180515 |