CN203924034U - A kind of subgrade - Google Patents
A kind of subgrade Download PDFInfo
- Publication number
- CN203924034U CN203924034U CN201420226181.5U CN201420226181U CN203924034U CN 203924034 U CN203924034 U CN 203924034U CN 201420226181 U CN201420226181 U CN 201420226181U CN 203924034 U CN203924034 U CN 203924034U
- Authority
- CN
- China
- Prior art keywords
- subgrade
- impervious wall
- steel plate
- encapsulant
- gutter
- 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.)
- Expired - Fee Related
Links
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model has been announced a kind of subgrade, comprise impervious wall (1), encapsulant (2), ventilative material (3), rig (4), vaccum-pumping equipment (5), gutter (6), it is characterized in that, described ring-type impervious wall (1) matches with the shape of subgrade (7), described encapsulant (2) is tightly connected with impervious wall (1), rig (4) is squeezed into after deep hole (71) in subgrade (7), described ventilative material (3) matches with deep hole (71), the tube connector (51) of described gutter (6) and vaccum-pumping equipment (5) is tightly connected with encapsulant (2).The utility model by the innovative design of subgrade ring-type impervious wall, provides a kind of suction high, and the duration is short, and efficiency is high, processes the strong and uniform subgrade of ground integrated carrying ability of the supporting capacity of groundwork.
Description
Technical field
The utility model relates to a kind of field of civil engineering, relates in particular a kind of Soft Ground being processed into handpan.
Background technology
If ground is firm not before building, for preventing from building groundwork sinking drawing crack, cause the accidents such as building is unstable, need to process subgrade, make its sedimentation become enough firm, reach the degree of consolidation and the extremely requirement of design of stability of ground, this process is called soft foundation processing.At present, the conventional engineering method of soft foundation processing: compound foundation method, plastic draining board combined stack-load, the precompressed of plastic draining board combined vacuum, dynamic compaction and vacuum preloading method for non-water discharge sand cushion.Compound foundation method, is exactly that the method cost is high by forming intensive mixed earth agitation pile, powder spray piling or broken stone pile, uneconomical applicable; Plastic draining board combined stack-load, the method is long in time limit, and after processing, effect is undesirable; The precompressed of plastic draining board combined vacuum, after processing, effect is easily controlled, and cost is low, but the duration is longer; Dynamic compaction, the foundation quality after processing is uncontrollable, easily forms " spring soil "; Vacuum preloading method for non-water discharge sand cushion, the duration is short, and cost is low, and cost saves 1/3rd than the precompressed of plastic draining board combined vacuum, reliable for effect, but the bearing capacity of ground is inhomogeneous.The general flexible foundation treatment method of prior art does not have the foundation capability effectively solving after supple-settlement to be uniformly distributed yet, and long problem of construction period.China Patent Publication No. CN 101381990 A for example, open day on 03 11st, 2009, the name of innovation and creation is called a kind of method for treating surface layer of soft foundation, this patent discloses a kind of processing method of subgrade, by determining subgrade construction pass and every controlling value progressively improving all over bearing capacity, repeatedly pressurize and vacuumize, efficiently solve general flexible foundation treatment method and process the rear low problem of supporting capacity, but this patent need to be determined every controlling value improving all over bearing capacity and every all over all needing repeatedly to pressurize and vacuumize, not only efficiency of construction is low, long in time limit, and pressure process waste power.For another example China Patent Publication No. CN 101503875 A, at on 08 12nd, 2009 day for announcing, the name of innovation and creation is called a kind of vacuum drainage sand wick soft ground processing method, this application case discloses a kind of processing method of subgrade, by being used in conjunction with of vertical drainage body and horizontal drain pipe, when carrying out static(al) consolidation, coordinate the use of vibrator, efficiently solve general soft based process method long in time limit, the problem that cost is high, but the surrounding of this patent subgrade is sealing not, after finishing dealing with, reason due to the continuous infiltration of water, the supporting capacity of ground surrounding is lower, liftoff base center is far away, supporting capacity is lower, this patent does not have effectively to solve the strong and whole uniform problem of supporting capacity of subgrade supporting capacity after processing.China Patent Publication No. CN 101581092 A and for example, November 18 2009 day for announcing, the name of innovation and creation is called method for processing soft ground by rapid pressurizing pre-compression, the processing that this patent discloses a kind of subgrade repeatedly, pass through sand drain, header, balance pipe, being used in conjunction with of drainage pump and vacuum pump, efficiently solve processing groundwork and there is good closeness and the problem of supporting capacity, but the reason due to the continuous infiltration of water, lower in the supporting capacity of processing groundwork surrounding, this patent does not have effectively to solve the strong and whole uniform problem of supporting capacity of subgrade supporting capacity after processing.Chinese patent application publication No. CN 101831903 A and for example, at on 09 15th, 2010 Shen Qing Publication day, the name of innovation and creation is called a kind of flexible foundation treatment method, this application case discloses a kind of processing method of subgrade, pass through electrical bar, being combined with of drainage channel and vaccum-pumping equipment, efficiently solve in weak soil the content in conjunction with water high, general processing method problem long in time limit, but this application case ground surrounding is sealing not, reason due to the continuous infiltration of water, lower in the supporting capacity of processing groundwork surrounding, there is no effectively to solve the strong and whole uniform problem of supporting capacity of subgrade supporting capacity after processing.The utility model by the innovative design of subgrade surrounding impervious wall, provides a kind of suction high, and the duration is short, and efficiency is high, processes the strong and uniform subgrade of ground integrated carrying ability of the supporting capacity of groundwork.
Summary of the invention
The utility model solve general subgrade in prior art not have effectively to solve process groundwork supporting capacity by force and the uniform problem of ground integrated carrying ability, a kind of subgrade is provided, by the innovative design of subgrade surrounding impervious wall, realize suction high, duration is short, efficiency is high, processes that the supporting capacity of groundwork is strong and ground integrated carrying ability is even.
In order to solve the technical problem of above-mentioned existence, the utility model is taked following technical proposals: a kind of subgrade, comprise impervious wall, encapsulant, ventilative material, rig, vaccum-pumping equipment, gutter, it is characterized in that, the shape of described impervious wall and subgrade matches, between impervious wall, closely connect, form ring-type, described encapsulant and impervious wall are tightly connected, rig is squeezed into after deep hole in subgrade, described ventilative material and deep hole match, tube connector and the encapsulant of described gutter and vaccum-pumping equipment are tightly connected, the Length Ratio that described gutter inserts encapsulant connects pipe range.
When construction, first according to the shape of subgrade, squeeze into ring-type impervious wall; By rig, in subgrade, beat again deep hole, and ventilative material is set in deep hole; Then by encapsulant, impervious wall upper end is sealed; Then the tube connector of vaccum-pumping equipment and gutter are inserted to encapsulant, and it is carried out to encapsulation process; Finally start vaccum-pumping equipment, carry out negative pressure and vacuumize draining, moisture in subgrade is subject to the effect of negative pressure, slowly along the gap of ventilative material, up shove, the Length Ratio that inserts encapsulant due to gutter connects pipe range, the water that shoves out can not flow into toward the import of tube connector, but discharge to gutter, moisture content with groundwork slowly reduces, closeness slowly improves, and namely the supporting capacity of ground slowly promotes, until the supporting capacity of ground is while reaching controlling value, the work that stops vacuumizing, has so just constructed.Impervious wall, completely cuts off processing to the environment in subgrade and the ground external world; Encapsulant, processes subgrade and isolate from outer air, and impervious wall is combined with encapsulant, is easy to realize application of vacuum in subgrade; The use of ventilative material, can circulate in the gap of ventilative material the water in subgrade; Rig, beats deep hole to subgrade, and convenient ventilative material is arranged in deep hole, forms the circulation passage of water in subgrade; Being used in conjunction with of impervious wall, encapsulant and vaccum-pumping equipment, compare with the processing method of general subgrade, suction of the present utility model is high, processing time is short, efficiency is high, the supporting capacity that vacuumizes processing groundwork significantly promotes, and the sedimentation of ground inside is identical, and supporting capacity is evenly distributed.
Preferably, described deep hole is evenly arranged in subgrade.Be evenly arranged, realize subgrade plane internal drainage even, supporting capacity synchronously improves, and facilitates the detection of controlling value.
Preferably, when subgrade area is larger, subgrade is carried out to even blocked job.Blocked job, compares with disposable operation, reduces fatigue strength, on the ground of having finished dealing with, can carry out next step operation simultaneously, reduces the whole duration of engineering; Even piecemeal, make the instrument that completes in lastblock operation can be complete must be for the work in next piece region, economical and practical, reduce costs.
Preferably, described impervious wall is antiseepage steel plate, and after vacuumizing processing, antiseepage steel plate can reclaim.After vacuumizing and finishing dealing with, directly reclaim, reduce raw-material waste, reduce costs; When even blocked job, the antiseepage steel plate reclaiming in lastblock region can be complete for next piece ground, and reclaim after last piece ground of finishing dealing with, and reduces costs.
Preferably, described impervious wall is built moulding by steel concrete, and after vacuumizing processing, described impervious wall is permanent basis.Directly improve intensity and the supporting capacity of ground, do not need impervious wall to process the reduction of erection time.
Preferably, described ventilative material is the vacuum-pumping tube that tube wall is provided with air-vent, and described vacuum-pumping tube and deep hole match.The air-vent of vacuum-pumping tube is even, and the circulation of the interior water of subgrade is even, and the supporting capacity that realizes processing groundwork is even, and can reclaim after construction completes, and is conducive to environmental protection.
Preferably, described ventilative material is sandstone.After finishing dealing with, sandstone and ground are combined as a whole, and the ground of realizing after processing has good closeness.
Preferably, described encapsulant is steel plate, and described impervious wall is antiseepage steel plate.Draw materials conveniently, planeness is good, is conducive to sealing.
Preferably, described steel plate and antiseepage steel plate seal by asbestos cord.By the weight compression asbestos cord of steel plate, sealing is convenient.
Owing to taking above-mentioned technical scheme, a kind of subgrade that the utility model provides has such beneficial effect: cost is low, and suction is high, and the duration is short, and efficiency is high, processes that the supporting capacity of groundwork is strong and ground integrated carrying ability is even.
accompanying drawing explanation:
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 be the utility model accompanying drawing 1 A-A to a kind of structural representation;
Accompanying drawing 3 be the utility model accompanying drawing 1 A-A to another kind of structural representation;
Accompanying drawing 4 is that the A of the utility model accompanying drawing 3 is to enlarged drawing;
Accompanying drawing 5 is a kind of arrangement diagram of the even blocked job of the utility model subgrade;
Accompanying drawing 6 is the another kind of arrangement diagram of the even blocked job of the utility model subgrade;
Accompanying drawing 7 is the schematic diagram of the even blocked job first step of the utility model subgrade;
Accompanying drawing 8 is the schematic diagram of the even blocked job second step of the utility model subgrade;
Accompanying drawing 9 is the schematic diagram of the even blocked job penultimate stride of the utility model subgrade;
Accompanying drawing 10 is the schematic diagram of the even blocked job final step of the utility model subgrade;
Accompanying drawing 11 is the supporting capacity schematic diagram after general soft foundation processing;
Accompanying drawing 12 is the supporting capacity schematic diagram after the utility model soft foundation processing.
In figure: ventilative material 3 vacuum-pumping tube 31 sandstone 32 rig 4 vaccum-pumping equipment 5 tube connector 51 gutter 6 subgrade 7 deep hole 71 asbestos cords 8 of impervious wall 1 antiseepage steel plate 11 encapsulant 2 steel plate 21
the specific embodiment:
Consult accompanying drawing, the utility model be described in further detail:
Embodiment mono-: by reference to the accompanying drawings 1,2,11,12, and a kind of subgrade, comprises impervious wall 1, encapsulant 2, vacuum-pumping tube 31, rig 4, vaccum-pumping equipment 5, gutter 6, processing method is: first according to the shape of subgrade 7, squeeze into impervious wall 1; By rig 4, in subgrade 7, beat deep hole 71 again, and at the interior vacuum-pumping tube 31 that arranges of deep hole 71; Then by 2 pairs of impervious wall 1 upper ends of encapsulant, seal; Then the tube connector of vaccum-pumping equipment 5 51 and gutter 6 are inserted to encapsulant, and it is carried out to encapsulation process; Finally start vaccum-pumping equipment 5, carry out negative pressure and vacuumize draining, reduce the moisture content of subgrade 7, make it reach design supporting capacity.
Embodiment bis-, by reference to the accompanying drawings 1,2,5,11,12, a kind of subgrade, comprise that reinforcing bar mixes impervious wall 1, encapsulant 2, vacuum-pumping tube 31, rig 4, vaccum-pumping equipment 5, gutter 6 that earth is built moulding, processing method is: when the area of circular subgrade is larger, subgrade 7 is carried out to even piecemeal, take subgrade 7 surroundings and cut-off rule thereof to beat impervious wall 1 link slot as benchmark, and steel and concrete structure is set in groove, to form impervious wall; Until impervious wall condense to meet the demands intensity time, by rig 4, in each block of subgrade 7, carry out the setting-out of deep hole 71, and beat deep hole, simultaneously at the interior insertion vacuum-pumping tube 31 of deep hole 71; Then by 2 pairs of impervious wall 1 upper ends of encapsulant, seal; Then the tube connector of vaccum-pumping equipment 5 51 and gutter 6 are inserted to encapsulant, and it is carried out to encapsulation process; Finally start vaccum-pumping equipment 5, carry out negative pressure and vacuumize draining, water in subgrade is owing to being subject to the effect of negative pressure, the top layer that gush out subgrade along vacuum-pumping tube 31, by gutter 6, discharge, now the moisture content of ground slowly reduces, closeness slowly improves, namely the supporting capacity of ground slowly promotes, until the supporting capacity of ground is while reaching controlling value, and the work that stops vacuumizing, after finishing dealing with, open encapsulant, reclaim vacuum-pumping tube 31, and the impervious wall 1 being formed by steel and concrete structure is left intact, just as the permanent basis of ground.
Embodiment tri-, by reference to the accompanying drawings 1, 3, 4, 11, 12, a kind of subgrade, comprise antiseepage steel plate 11, steel plate 21, sandstone 32, rig 4, vaccum-pumping equipment 5, gutter 6, antiseepage steel plate 11 matches with the shape of subgrade 7, between antiseepage steel plate 11, closely connect, steel plate 21 seals by asbestos cord 8 with antiseepage steel plate 11, rig 4 is squeezed into after deep hole 71 in subgrade 7, sandstone 32 matches with deep hole 71, tube connector 51 and the encapsulant 2 of gutter 6 and vaccum-pumping equipment 5 are tightly connected, gutter 6 inserts Length Ratio tube connector 51 length of encapsulant 2.
When processing, first according to the shape of subgrade, squeeze into antiseepage steel plate, and make closely to connect between antiseepage steel plate; Steel impermeable intralamellar part at subgrade is beaten deep hole by rig, and sandstone is filled up to deep hole; Then on antiseepage steel plate, asbestos cord is set, and the steel plate that closes, due to the deadweight of steel plate, steel plate and antiseepage steel plate are tightly connected; Then the tube connector of vaccum-pumping equipment and gutter are inserted to encapsulant, and it is carried out to encapsulation process; Restart vaccum-pumping equipment, carry out negative pressure and vacuumize draining, moisture in subgrade is subject to the effect of negative pressure, slowly along the gap of sandstone, up shoves, and the Length Ratio that inserts steel plate due to gutter connects pipe range, the water that shoves out can not flow into toward the import of tube connector, but discharge to gutter, with the closeness of groundwork, slowly improve, namely the supporting capacity of ground slowly promotes, until the supporting capacity of ground is while reaching controlling value, the work that stops vacuumizing; Finally open steel plate, put asbestos cord in order, and reclaim antiseepage steel plate, so just finished dealing with.
Embodiment tetra-, by reference to the accompanying drawings 1, 3, 4, 6, 7, 8, 9, 10, 11, 12, a kind of subgrade, comprise antiseepage steel plate 11, steel plate 21, sandstone 32, rig 4, vaccum-pumping equipment 5, gutter 6, when the area of square subgrade 7 is larger, subgrade 7 is carried out to even blocked job, antiseepage steel plate 11 matches with shape and the cut-off rule thereof of subgrade 7, between antiseepage steel plate 11, closely connect, steel plate 21 seals by asbestos cord 8 with antiseepage steel plate 11, rig 4 is squeezed into after deep hole 71 in subgrade 7, sandstone 32 matches with deep hole 71, tube connector 51 and the encapsulant 2 of gutter 6 and vaccum-pumping equipment 5 are tightly connected, gutter 6 inserts Length Ratio tube connector 51 length of encapsulant 2.
When processing, first according to the shape of subgrade, subgrade is carried out to even blocked job, in first selected subgrade surrounding, squeeze into antiseepage steel plate; By rig, in subgrade, beat again deep hole, and sandstone is filled up to deep hole; Then on antiseepage steel plate, asbestos cord is set, and the steel plate that closes, due to the deadweight of steel plate, steel plate and antiseepage steel plate are tightly connected; Then the tube connector of vaccum-pumping equipment and gutter are inserted to encapsulant, and it is carried out to encapsulation process; Restart vaccum-pumping equipment, carry out negative pressure and vacuumize draining, the moisture in subgrade is subject to the effect of negative pressure, slowly along the gap of sandstone, up shoves, the Length Ratio that inserts steel plate due to gutter connects pipe range, the water that shoves out can not flow into toward the import of tube connector, but discharges to gutter, with the moisture content of groundwork, slowly reduces, closeness slowly improves, namely the supporting capacity of ground slowly promotes, until the supporting capacity of ground is while reaching controlling value, and the work that stops vacuumizing.Select and first plot of subgrade that subgrade is adjacent again, first open steel plate, whole good asbestos cord, non-conterminous antiseepage steel plate is reclaimed, and carry out and first processing method that subgrade is identical, until after last piece soft foundation processing completes, open steel plate, put asbestos cord in order, and reclaim all antiseepage steel plates, so just finished dealing with.
Above-described four specific embodiments, are described in detail the utility model.Applied specific embodiment herein principle of the present utility model and embodiment are set forth, the explanation of embodiment is just for helping to understand core concept of the present utility model.Should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model core concept; can also carry out some modifications to the utility model; such as design parameter of seal form, rig and the vaccum-pumping equipment of seal form, gutter and the encapsulant of tube connector and encapsulant etc., carry out some modifications or combination, within should dropping on the protection domain of the utility model claim.
Claims (9)
1. a subgrade, comprise impervious wall (1), encapsulant (2), ventilative material (3), rig (4), vaccum-pumping equipment (5), gutter (6), it is characterized in that, described impervious wall (1) matches with the shape of subgrade (7), between impervious wall (1), closely connect, form ring-type, described encapsulant (2) is tightly connected with impervious wall (1), rig (4) is squeezed into after deep hole (71) in subgrade (7), described ventilative material (3) matches with deep hole (71), the tube connector (51) of described gutter (6) and vaccum-pumping equipment (5) is tightly connected with encapsulant (2), described gutter (6) inserts Length Ratio tube connector (51) length of encapsulant (2).
2. a kind of subgrade according to claim 1, is characterized in that, described deep hole (71) is evenly arranged in subgrade.
3. a kind of subgrade according to claim 1, is characterized in that, when subgrade (7) area is larger, subgrade (7) is carried out to even blocked job.
4. a kind of subgrade according to claim 3, is characterized in that, described impervious wall (1) is antiseepage steel plate (11), and after vacuumizing processing, antiseepage steel plate (11) can reclaim.
5. a kind of subgrade according to claim 3, is characterized in that, described impervious wall (1) is built moulding by steel concrete, and after vacuumizing processing, described impervious wall (1) is permanent basis.
6. a kind of subgrade according to claim 1, is characterized in that, described ventilative material (3) is provided with the vacuum-pumping tube (31) of air-vent for tube wall, and described vacuum-pumping tube (31) matches with deep hole (71).
7. a kind of subgrade according to claim 1, is characterized in that, described ventilative material (3) is sandstone (32).
8. a kind of subgrade according to claim 1, is characterized in that, described encapsulant (2) is steel plate (21), and impervious wall (1) is antiseepage steel plate (11).
9. a kind of subgrade according to claim 8, is characterized in that, described steel plate (21) seals by asbestos cord (8) with antiseepage steel plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420226181.5U CN203924034U (en) | 2014-05-06 | 2014-05-06 | A kind of subgrade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420226181.5U CN203924034U (en) | 2014-05-06 | 2014-05-06 | A kind of subgrade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203924034U true CN203924034U (en) | 2014-11-05 |
Family
ID=51819888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420226181.5U Expired - Fee Related CN203924034U (en) | 2014-05-06 | 2014-05-06 | A kind of subgrade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203924034U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113005837A (en) * | 2021-02-20 | 2021-06-22 | 广东科能工程管理有限公司 | HAS powder spraying pile for quickly reinforcing soft soil roadbed and construction method thereof |
| CN113338261A (en) * | 2021-07-21 | 2021-09-03 | 广州市恒嘉建设有限公司 | Construction method for constructing road on soft soil foundation |
-
2014
- 2014-05-06 CN CN201420226181.5U patent/CN203924034U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113005837A (en) * | 2021-02-20 | 2021-06-22 | 广东科能工程管理有限公司 | HAS powder spraying pile for quickly reinforcing soft soil roadbed and construction method thereof |
| CN113338261A (en) * | 2021-07-21 | 2021-09-03 | 广州市恒嘉建设有限公司 | Construction method for constructing road on soft soil foundation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105908860B (en) | A kind of ruggedized construction of 3D printing reinforced masonry shear wall | |
| CN101182709B (en) | Method of composite electroosmosis, vacuum precipitation and vacuum preload reinforcement foundation and device thereof | |
| CN206385531U (en) | A kind of pile tube device of reinforcing soft ground | |
| FI64976C (en) | FOERFARANDE FOER TAETNING AV SPRICKOR OCH KAVITETER I OLIKA SLG AV BYGGNADSBERK SAOSOM BYGGNADSVERK I BERG BETONG MURVE RKCH TRAE | |
| CN104153344A (en) | Soft foundation treatment method | |
| CN203924034U (en) | A kind of subgrade | |
| CN105587050B (en) | Assemble shear force wall reinforcing steel bar sleeve connection packer grouting structure and packer grouting method | |
| CN104594370B (en) | Karst high pressure joint rinses grouting method and its structure | |
| CN104831704A (en) | Electric osmosis and cathode vacuumizing combined soft soil reinforcement device and method | |
| CN107268599A (en) | A kind of embedded large-scale filling solution cavity ruggedized construction of substrate and reinforcement means | |
| CN102002950A (en) | Liquid division slip casting reinforcing method for subsurface structure construction joints | |
| CN103215950B (en) | Pile foundation extension construction method in backfilling area | |
| CN110512591A (en) | A kind of reinforcement means of vacuum preloading benefit conduit stake gas injection carbonization ultra-soft foundation | |
| CN111962492A (en) | Soft soil foundation treatment device and method | |
| CN105369797A (en) | Vacuum radiation solidification method for collapsible loess | |
| CN105507336A (en) | Method for forming composite foundation by using dewatering well | |
| CN203320578U (en) | Waterproof treatment structure of reinforced concrete cast-in-place pile head | |
| CN205591212U (en) | Multi -functional precast tubular pile | |
| CN108049651A (en) | A kind of distress in concrete blocking method | |
| CN204589991U (en) | A kind of vacuum preloading steel sheet pile envelope wall | |
| CN103979880A (en) | Pipeline engineering trench backfill material cement all-in-one mixture and preparation method thereof | |
| CN110306525A (en) | Treatment method of collapsible loess foundation | |
| CN105926577B (en) | Vacuum preloading seepage consolidation method | |
| CN104746507B (en) | A kind of construction refuse regenerated draining CFG pile foundation and construction method thereof | |
| CN204898645U (en) | Building rubbish regeneration drainage CFG stake ground |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20141105 Termination date: 20170506 |