CN205259169U - Complete high vacuum preloading of section consolidates device of deep silt soil base - Google Patents
Complete high vacuum preloading of section consolidates device of deep silt soil base Download PDFInfo
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- CN205259169U CN205259169U CN201521089144.5U CN201521089144U CN205259169U CN 205259169 U CN205259169 U CN 205259169U CN 201521089144 U CN201521089144 U CN 201521089144U CN 205259169 U CN205259169 U CN 205259169U
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- drain bar
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Abstract
The utility model belongs to the technical field of geotechnical engineering ground processing technique field, the deep silt soil of in particular to base processing technique and specifically relates to a complete high vacuum preloading of section consolidates device of deep silt soil base. The utility model discloses a full section high vacuum drainage body replaces traditional drain bar, drainage body is established ties through many types of joint by a plurality of drain bars and vacuum tube and forms, and many types of joint includes two board type interfaces and two tubular structure, through the board type interface series connection drain bar of many types of joint, cast interface series connection vacuum tube. Through when method vacuum preloading consolidated deep silt soil base, the negative pressure source became the multi -level vacuum working face that spreads all over in deep silt soil base by traditional surperficial single vacuum working face, through multi -level vacuum working face combined action, maintained high vacuum degree value in the full section of drainage body, and the soil of by a wide margin having accelerated to become silted up concreties speed, has shortened construction period, had guaranteed the whole effect of consolidating of deep silt soil base, and is simple reliable, the economical use.
Description
Technical field
The utility model relates to Geotechnical Engineering foundation treatment technology field, and particularly deep silt soil base processing technology field is outstandingIt is device and the using method of the deep silt of a kind of full section high vacuum ground preloading soil base.
Background technology
Deep layer soft soil foundation processing is the technical barrier that harbour, water conservancy, traffic engineering construction often run into. Conventional weak soil at presentMethod for processing foundation has cement mixing pile method, draining concretion method, cushion, vacuum method etc. Facts have proved vacuum preloadingMethod is a kind of consolidation theory based on native and the reliable soft-soil foundation treatment method of economy that grows up. The method is by auspicious the earliestThe Jie Erman (Kjellman) of ground institute of allusion quotation imperial family is taught in nineteen fifty-two and proposes, should through theoretical developments and the practice of decadesWith, form ripe construction technology and method for designing at present, and be widely used in engineering reality. The method is being implementedTime, in weak soil, plug vertical row water body (at present general adopt vertical drainage plate), and with air-locked diaphragm seal sealing and reinforcingPlace, is then bled and formed negative pressure in vertical row water body by vacuum plant, makes the effect at negative pressure load of moisture in weak soilLower discharge, and then reach the consolidation effect that reduces the native moisture content that becomes silted up, improves soil strength.
But in the time processing deep soft soil foundation, there is a key technology bottleneck problem: negative pressure of vacuum difficulty in technique of soft soil foundation treatmentTo be effectively passed to deep layer weak soil. In the process that this technology is implemented, owing to being subject to the impact of the resistance of vertical drainage plate well and smear effect,In the time transmitting along drain bar to ground depth direction, can there is obvious linear loss [Qiu Qingchang, Mo Haihong, Dong Zhi in negative pressure of vacuumGood. the drawdown analysis [J] of Soft Ground Improved By Vacuum Preloading vertical drainage body inner fluid. South China Science & Engineering University's journal (natural science edition).2007 (03): 132-136.; Zhu Qunfeng, Gao Changsheng, Yang Shouhua, etc. vacuum transmission characteristic in ultra-soft silt ground treatmentResearch [J]. Geotechnical Engineering journal .2010 (09): 1429-1433.], cause vacuum to be difficult to effectively to the transmission of deep layer weak soil.Therefore, technique of soft soil foundation treatment is applied to deep layer soft soil foundation while processing in engineering, often occur due to vacuum transmit the degree of depth limited andCause the soft base of deep layer to dispose effect not satisfactory, and the pumpdown time is long, is difficult to meet construction period.
Hence one can see that, finds a kind of apparatus and method of the native foundation stabilization of deep silt that realizes the effective vacuum preloading of deep layer weak soil,It is this area technical problem urgently to be resolved hurrily. The utility model provides the deep silt of a kind of full section vacuum pre-press reinforcing soil baseThe method of installing and use the deep silt of this device ground preloading soil base, can realize the deep layer weak soil/native consolidation process of becoming silted up.
Summary of the invention
In view of there being above-mentioned technical problem in prior art, the defect that the utility model exists for prior art, breaks through traditionalThe bottleneck that technique of soft soil foundation treatment soft soil foundation effective reinforcement depth is shallow, provides one effectively to improve deep soft soil foundation wholeDevice and the using method thereof of the deep silt of the full section high vacuum ground preloading soil base of body consolidation effect.
The device of the deep silt of full section high vacuum described in the utility model ground preloading soil base comprises, vacuum extractor, vacuumPipe-line system and full section high vacuum displacement hull, vacuum pipe system comprises supervisor and arm, one end of supervisor and vacuum extractorConnect, supervisor separates an arm in the position of every row's displacement hull. Described full section high vacuum displacement hull is by drain bar, vacuumPipeline and many types of splice combinations are formed by connecting, and many types of joint comprises two template interfaces and two cast interfaces, by many types of jointTemplate interface tandem drain bar, cast interface tandem vacuum tube, the length of every described drain bar and vacuum pipe is 4-10m,The drain bar of described series connection or vacuum pipe total length exceed design and plug degree of depth 0.3m-0.5m, and the diameter of described vacuum pipe is1cm-2cm, the total length of described full section high vacuum displacement hull is according to ground design reinforcement Depth determination; Described vacuum pipe systemEvery arm be connected with described vacuum pipe by tube connector, be connected with described drain bar with hand-type joint by tube connector, stringJoined whole row's displacement hull, wherein, hand-type joint comprises a template interface and a cast interface.
Said apparatus in use, needs ground on the scene to cover at least one deck geotextiles, and lays at least one deck diaphragm seal.
The method of the deep silt of use said apparatus described in the utility model ground preloading soil base is real by following technical solutionExisting, comprise the following steps:
The first step, make full section high vacuum displacement hull---described full section high vacuum displacement hull is by drain bar (its allusion quotation of drain barThe patent documentation " drain bar " that type structure is 200620014821.1 referring to number of patent application), vacuum pipe and many types of splice combinationsBe formed by connecting, many types of joint comprises two template interfaces and two cast interfaces, by the template interface tandem draining of many types of jointPlate, cast interface tandem vacuum tube. The length of every drain bar and vacuum pipe is 4-10m, the drain bar of series connection or vacuum tubeRoad total length exceeds displacement hull design and plugs degree of depth 0.3m-0.5m, and the diameter of vacuum tube is 1cm-2cm.
Second step, plug full section high vacuum displacement hull---flatten pending soil layer, and plug draining according to predetermined spaceBody is to projected depth;
The 3rd step, pipeline connect---and ground surface on the scene is laid the supervisor that one end is connected with vacuum extractor, and supervisor is in every row's drainingThe position of body separates an arm, and every arm is connected with vacuum pipe by tube connector, by tube connector and hand-type joint withThe drain bar of full section high vacuum displacement hull connects vacuum pipe, the whole row's displacement hull of having connected, and wherein, hand-type joint comprises oneTemplate interface and a cast interface;
The 4th step, covering sealing---on the pending soil layer of laying pipe-line system, cover at least one deck geotextiles, thenLay at least one deck diaphragm seal;
The 5th step, vacuum drainage are fixed---open vacuum extractor, and when vacustat under diaphragm seal is during at > 85kPa, rowThe full section of water body is stabilized in the condition of high vacuum degree value of > 70kPa, realizes the full section high vacuum of deep silt soil base discharging consolidation.
The apparatus and method of the deep silt of the full section high vacuum of the utility model ground preloading soil base, adopt the draining of full section high vacuumBody replaces traditional drain bar, and negative pressure source becomes by traditional surperficial single vacuum acting surface the multilayer that is dispersed throughout deep silt soil baseInferior vacuum action face. By the acting in conjunction of multi-level vacuum action face, negative pressure of vacuum can be passed to the drain bar in deep smoothly,Make the negative pressure of vacuum in the drain bar of entire depth section maintain high level operation, all pending soil layer of deep silt soil baseAll can obtain reinforcing effectively rapidly, thereby greatly accelerate discharging consolidation, shorten the construction period, and ensure deep silt soilGround integral reinforcing effect, simple and reliable, economical and practical.
Brief description of the drawings
Fig. 1 is the structural representation of full section high vacuum displacement hull described in the utility model and vacuum extractor;
Fig. 2 is the schematic diagram of many types of joint described in the utility model;
Fig. 3 is the schematic diagram of hand-type joint described in the utility model.
Wherein, 1 is vacuum pipe, and 2 is drain bar, and 3 is many types of joint, and 4 is full section high vacuum displacement hull, and 5 is supervisor,6 is arm, and 7 is vacuum extractor, and 8 is hand-type joint, and 9 is tube connector, and 10 is geotextiles, and 11 is press mold ditch, and 12 areCast interface, 13 is template interface, 14 is diaphragm seal.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is done to lower explanation:
The method of the deep silt of the full section high vacuum ground preloading soil base of the present embodiment is on certain dyke dangerous section section levee foundation reinforcing engineeringImplement, as shown in Figure 1, this dangerous section's section complex geologic conditions, distribution Soft Soil Layer in 20m depth bounds under levee body, weak soil bed thicknessDegree is large, moisture content is high, intensity is low, and levee body sedimentation is unstable.
The device of the deep silt of the full section high vacuum ground preloading soil base of the present embodiment, as shown in Figure 1, comprises vacuum meansPut 7, vacuum pipe system and full section high vacuum displacement hull 4, vacuum pipe system comprises supervisor 5 and arm 6, supervisor's 5One end is connected with vacuum extractor 7, and supervisor 5 separates an arm 6 in the position of every row's displacement hull 4. Described full section is highVacuum drainage body 4 is connected and is formed by drain bar 2, vacuum pipe 1 and many types of joint 3, and many types of joint 3 comprises two platesType interface 13 and two cast interfaces 12, by the template interface 13 of many types of joint 3 drain bar 2 of connecting, cast interface 12 is gone here and thereConnection vacuum pipe 1; The every arm 6 of described vacuum pipe system is connected with described vacuum pipe 1 by tube connector 9, passes throughTube connector 9 is connected with described drain bar 2 with hand-type joint 8, the whole row's displacement hull 4 of having connected, and wherein, hand-type joint 8 comprisesA template interface 13 and a cast interface 12.
The length of every described drain bar 2 and vacuum pipe 1 is 4-10m, and drain bar 2 or the vacuum pipe 1 of described series connection are totalLength exceeds design and plugs degree of depth 0.3m-0.5m, and the diameter of described vacuum pipe 1 is 1cm-2cm, described full section high vacuum rowThe total length of water body 4 is according to ground design reinforcement Depth determination.
Said apparatus in use, needs ground on the scene to cover at least one deck geotextiles 10, and lays at least one deck diaphragm seal 14.
Concrete implementation step is as follows:
The first step, make full section high vacuum displacement hull 4---full section high vacuum displacement hull 4 is by drain bar 2, vacuum pipe 1Be connected and form with many types of joint 3, many types of joint 3 comprises two template interfaces 13 and two cast interfaces; Connect by many types of3 template interface 13 drain bar 2 of connecting, cast interface 12 vacuum pipe 1 of connecting. Wherein, full section high vacuum displacement hull4 total lengths are projected depth 20m, and drain bar 2 and the vacuum pipe 1 of 4 5.1m connect by the template of many types of joint 3 respectivelyMouth 13 and cast interface 12 are connected, vacuum pipe diameter 1.5cm.
Second step, smooth location and plug full section high vacuum displacement hull 4---place within the scope of smooth stabilization zone, and locate waitingOn reason soil layer, plug displacement hull 4 to the 20m degree of depth with the interval of 1.0m;
The 3rd step, pipeline connect---lay on pending soil layer surface the supervisor 5 that one end is connected with vacuum extractor 7,Supervisor 5 separates an arm 6 in the position of every row's displacement hull, each arm 6 is connected with vacuum pipe 1 by tube connector 9,Be connected with the drain bar 2 of full section high vacuum displacement hull 4 with hand-type joint 8 by tube connector 9, the whole row's displacement hull 4 of having connected,Wherein, hand-type joint 8 comprises a template interface 13 and a cast interface 12.
The 4th step, covering sealing---on the pending soil layer of laying pipe-line system, cover one deck 300g/m2 geotextiles 10,Then lay 3 layer thicknesses and be not less than 0.12mm diaphragm seal 14, place periphery excavation press mold ditch 11;
The 5th step, vacuum drainage are fixed---open vacuum extractor 7, and when 14 times vacustats of diaphragm seal are during at > 85kPa,The full section of displacement hull 4 is stabilized in the condition of high vacuum degree value of > 70kPa, realizes the full section high vacuum of deep silt soil base discharging consolidation.
After 90 days dispose, the levee foundation degree of consolidation reaches 95%, be greater than design load 90%, different depth weak soil after simultaneously processingFoundation bearing capacity is improved significantly, and bearing capacity reaches 80kPa, and consolidation effect is remarkable.
In addition to the implementation, the utility model can also have other embodiments. All employings are equal to replaces or equivalent transformation formationTechnical scheme, all drop on the protection domain of the utility model requirement.
Claims (5)
1. a device for the deep silt of full section high vacuum ground preloading soil base, described device comprises vacuum extractor, vacuum tubeRoad system and full section high vacuum displacement hull, vacuum pipe system comprises supervisor and arm, one end of supervisor and vacuum extractor connectConnect, supervisor separates an arm in the position of every row's displacement hull, it is characterized in that, described full section high vacuum displacement hull is by arrangingWater plate, vacuum pipe and many types of splice combinations are formed by connecting, and many types of joint comprises two template interfaces and two cast interfaces, logicalCross the template interface tandem drain bar of many types of joint, cast interface tandem vacuum tube; Every arm of described vacuum pipe system is logicalCross tube connector and be connected with described vacuum pipe, be connected with described drain bar with hand-type joint by tube connector, the whole row's draining of having connectedBody, wherein, hand-type joint comprises a template interface and a cast interface.
2. device according to claim 1, is characterized in that, while using described device, needs ground on the scene to cover at leastOne deck geotextiles, and lay at least one deck diaphragm seal.
3. device according to claim 1, is characterized in that, the length of every described drain bar and vacuum pipe is4-10m。
4. device according to claim 1, is characterized in that, the drain bar of described series connection or vacuum pipe total length exceedDesign plugs degree of depth 0.3m-0.5m, and the diameter of described vacuum pipe is 1cm-2cm.
5. device according to claim 1, is characterized in that, the total length base area of described full section high vacuum displacement hullBase design reinforcement Depth determination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521089144.5U CN205259169U (en) | 2015-12-23 | 2015-12-23 | Complete high vacuum preloading of section consolidates device of deep silt soil base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521089144.5U CN205259169U (en) | 2015-12-23 | 2015-12-23 | Complete high vacuum preloading of section consolidates device of deep silt soil base |
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| CN205259169U true CN205259169U (en) | 2016-05-25 |
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| CN201521089144.5U Expired - Fee Related CN205259169U (en) | 2015-12-23 | 2015-12-23 | Complete high vacuum preloading of section consolidates device of deep silt soil base |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464070A (en) * | 2015-12-23 | 2016-04-06 | 江苏鸿基水利建设工程有限公司 | Device and method for consolidating deep and thick silted soil foundation through full-section high-vacuum preloading |
| CN106759230A (en) * | 2017-01-22 | 2017-05-31 | 山东正元建设工程有限责任公司 | The novel evacuated pre-pressing system and processing method of a kind of Soft Ground |
-
2015
- 2015-12-23 CN CN201521089144.5U patent/CN205259169U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464070A (en) * | 2015-12-23 | 2016-04-06 | 江苏鸿基水利建设工程有限公司 | Device and method for consolidating deep and thick silted soil foundation through full-section high-vacuum preloading |
| CN106759230A (en) * | 2017-01-22 | 2017-05-31 | 山东正元建设工程有限责任公司 | The novel evacuated pre-pressing system and processing method of a kind of Soft Ground |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180716 Address after: 225000 Workers'Village No. 150, Yanfu East Road, Yangzhou City, Jiangsu Province Co-patentee after: Jiangsu water source Co.,Ltd. of east line of South to North Water Transfer Patentee after: JIANGSU HONGJI WATER SOURCE TECHNOLOGY CO.,LTD. Address before: 225000 150 workers' er village, Yanfu East Road, Guangling District, Yangzhou, Jiangsu. Co-patentee before: Jiangsu water source Co.,Ltd. of east line of South to North Water Transfer Patentee before: JIANGSU WATER CONSERVANCY CONSTRUCTION ENGINEERING CO.,LTD. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20211223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |