CN104790440A - Sandy soil liquefaction and water feeding method and device used for pile soil interaction shaking table test - Google Patents
Sandy soil liquefaction and water feeding method and device used for pile soil interaction shaking table test Download PDFInfo
- Publication number
- CN104790440A CN104790440A CN201510154038.9A CN201510154038A CN104790440A CN 104790440 A CN104790440 A CN 104790440A CN 201510154038 A CN201510154038 A CN 201510154038A CN 104790440 A CN104790440 A CN 104790440A
- Authority
- CN
- China
- Prior art keywords
- liquefaction
- water inlet
- water supply
- pile
- sand
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to a sandy soil liquefaction and water feeding method and device used for a pile soil interaction shaking table test. The method comprises the following steps: 1, a steel box is provided, a pile is vertically arranged at the center of the inner cavity of the steel box; 2, at least one hard water inlet pipe is vertically fixed to the inner wall of the steel box; 3, at least one sandy soil layer and at least one clay layer are sequentially contained in the steel box from bottom to top, corresponding water outlet hoses are horizontally laid at the predetermined height positions in all sandy soil layers during containing, meanwhile the water inlet ends of the water outlet hoses of all layers are connected with the lower end of the corresponding hard water inlet pipes, a plurality of small water outlet holes are evenly formed in the peripheral sides of the water outlet hoses to achieve fixed-point sandy soil liquefaction; 4, the upper ends of the hard water inlet pipes are connected to corresponding water inlet hoses, and water meters are installed on the water inlet hoses to achieve quantitative water feeding. By means of the sandy soil liquefaction and water feeding method and device, quantitative water feeding and liquefaction of predetermined sandy soil layers are achieved, operating difficulty is reduced, experiment cost is reduced, and the accuracy of sandy soil water content situation of a sandy soil liquefaction test is improved.
Description
Technical field
The present invention relates to method and the device of sand liquefaction and feedwater in a kind of pile-soil interaction shaketalle test, be specially adapted to the test of earthquake simulation shaking table pile-soil interaction.
Background technology
Sandy soil are extensive at distribution in China, under geological process, may there is liquefaction phenomenon in some sandy soil, seismic activity was quite frequent especially in recent years, sand liquefaction brings huge economic loss and casualties to the mankind, and the sand liquefaction harm in some areas is even also much bigger than earthquake itself.Therefore, under Study of Seismic effect, sand liquefaction phenomenon is extremely important, and the sand water content of simulating sand liquefaction in laboratory must strictly control, and therefore quantitative waterworks just seem especially important.
But domestic and international existing technical standard and specification all do not propose clear stipulaties to sandy soil priming apparatus, only propose certain limit to amount of water.The experiment of a lot of liquefaction of sand both at home and abroad all points out that water content is more or less one of key factor of experiment, but does not provide one and facilitate feasible method.
Therefore, be necessary a kind of method for sand liquefaction and feedwater in pile-soil interaction shaketalle test Soil-pile Interaction shaketalle test of design and device, not numerous and diversely to feed water cursorily, but simply accurately feed water, thus make guarantee that there is good sandy soil moisture content during the test of simulation sand liquefaction.
Summary of the invention
In view of the deficiencies in the prior art, the object of the present invention is to provide method and the device of sand liquefaction and feedwater in a kind of pile-soil interaction shaketalle test of easy to operate, accurate control.
To achieve these goals, a technical scheme of the present invention is: a kind of for sand fixed point liquefaction in pile-soil interaction shaketalle test and the method for quantitative water supply, carries out according to the following steps:
(1) provide a steel case, described steel box cavity center is perpendicular is provided with stake;
(2) at least one water inlet hard tube is vertically fixed on steel chamber interior wall;
(3) in steel case from bottom to top successively intersect be loaded with at least one sandy soils and at least one argillic horizon, height and position level predetermined in each sandy soils during splendid attire lays corresponding delivery hose, the delivery hose water inlet end of each layer is connected with corresponding water inlet hard tube lower end simultaneously, the all sides of described delivery hose evenly offer several ostium excurrenses, realize the liquefaction of sand fixed point;
(4) water inlet hard tube upper end is connected to corresponding water supply hose, described water supply hose is provided with water meter, realizes quantitative water supply.
Further, the horizontal circle one in corresponding sandy soils of described delivery hose is enclosed.
Further, the length of described water inlet hard tube to equal to intend in liquefied sand layer delivery hose to the distance of steel case top edge.
Further, described water inlet hard tube lower end stretches to the centre position of intending liquefied sand layer.
To achieve these goals, another technical scheme of the present invention is: a kind of for the device of sand fixed point liquefaction in pile-soil interaction shaketalle test with quantitative water supply, comprise steel case, described steel box cavity center is perpendicular is provided with stake, intersect successively from bottom to top in described steel case and be loaded with at least one sandy soils and at least one argillic horizon, height and position predetermined in described sandy soils is embedded with delivery hose, the all sides of described delivery hose evenly offer the ostium excurrens that several realize sand liquefaction, described steel chamber interior wall is fixed with the water inlet hard tube that at least one lower end is connected with the delivery hose water inlet end of corresponding sandy soils, described water inlet hard tube upper end is connected to corresponding water supply hose, described water supply hose is provided with the water meter of quantitatively water inlet.
Further, the horizontal circle one in corresponding sandy soils of described delivery hose is enclosed.
Further, the length of described water inlet hard tube to equal to intend in liquefied sand layer delivery hose to the distance of steel case top edge.
Further, described water inlet hard tube lower end stretches to the centre position of intending liquefied sand layer.
Compared with prior art, the present invention has following beneficial effect: under water state, the water yield entered in sandy soil can be accurately known by water meter, and the even hole of delivery hose makes water distribution average, achieve quantitative water supply and the liquefaction of predetermined layer sandy soil, have structure simple, make the advantages such as easy, easy to use and result is accurate, both reduced operation easier, additionally reduce experimental cost, and improve the degree of accuracy of simulation liquefaction of sand experiment sand water content.
Accompanying drawing explanation
Fig. 1 is the elevational schematic view of the embodiment of the present invention.
Fig. 2 is the generalized section of the embodiment of the present invention.
In figure: 1-stake, 2-delivery hose, 3-water supply hose, 4-is intake hard tube, 5-water meter, 6-steel case, 7-argillic horizon, 8-sandy soils.
Detailed description of the invention
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below.
As shown in Figure 1 and 2, a kind of for sand fixed point liquefaction in pile-soil interaction shaketalle test and the method for quantitative water supply, carry out according to the following steps:
(1) provide a steel case 6, described steel case 6 lumen centers is perpendicular is provided with stake 1;
(2) at least one water inlet hard tube 4 is vertically fixed on steel case 6 inwall;
(3) in steel case 6 from bottom to top successively intersect be loaded with at least one sandy soils 8 and at least one argillic horizon 7, height and position level predetermined in each sandy soils 8 during splendid attire lays corresponding delivery hose 2, delivery hose 2 water inlet end of each layer is connected with corresponding water inlet hard tube 4 lower end simultaneously, described delivery hose 2 weeks sides evenly offer several ostium excurrenses, realize the liquefaction of sand fixed point;
(4) water inlet hard tube 4 upper end is connected to corresponding water supply hose 3, described water supply hose 3 is provided with water meter 5, realizes quantitative water supply.
In the present embodiment, in order to make liquefaction effect better, the horizontal circle one in corresponding sandy soils 8 of described delivery hose 2 is enclosed, and determines corresponding liquefaction zone; Certainly, the mode that is horizontally disposed with of described delivery hose 2 is not limited thereto, can also around multi-turn etc.
In the present embodiment, the length of described water inlet hard tube 4 is determined by sandy soils 8 degree of depth sending out raw liquefaction, namely equals the distance intending delivery hose 2 to steel case 6 top edge in liquefied sand layer 8, achieves fixed point liquefaction.Preferably, described water inlet hard tube 4 lower end stretches to the centre position of intending liquefied sand layer 8.
In the present embodiment, described water meter 5 does not affect the normal operation of current under given working flow state, the water yield is excessive exceedes its measurement category to be unlikely to have enough ranges, and can indicate inflow exactly, and makes the water yield entering sandy soils 8 very even.Under the state of feedwater, check the water yield intended in liquefied sand layer 8 by water meter 5, by the calculating of inflow, the moisture content of corresponding sandy soils 8 in steel case 6 can be known definitely, realize quantitative water supply.
As shown in Figure 1 and 2, a kind of for the device of sand fixed point liquefaction in pile-soil interaction shaketalle test with quantitative water supply, comprise steel case 6, described steel case 6 lumen centers is perpendicular is provided with stake 1, intersect successively from bottom to top in described steel case 6 and be loaded with at least one sandy soils 8 and at least one argillic horizon 7, in described sandy soils 8, predetermined height and position is embedded with delivery hose 2, described delivery hose 2 weeks sides evenly offer the ostium excurrens that several realize sand liquefaction, described steel case 6 inwall is fixed with the water inlet hard tube 4 that at least one lower end is connected with delivery hose 2 water inlet end of corresponding sandy soils 8, described water inlet hard tube 4 upper end is connected to corresponding water supply hose 3, described water supply hose 3 is provided with the water meter 5 of quantitatively water inlet.
In the present embodiment, in order to make liquefaction effect better, the horizontal circle one in corresponding sandy soils 8 of described delivery hose 2 is enclosed, but is not limited thereto, can also around multi-turn.
In the present embodiment, the length of described water inlet hard tube 4 is determined by sandy soils 8 degree of depth sending out raw liquefaction, namely equals the distance intending delivery hose 2 to steel case 6 top edge in liquefied sand layer 8, achieves fixed point liquefaction.Preferably, described water inlet hard tube 4 lower end stretches to the centre position of intending liquefied sand layer 8.
In the present embodiment, described water supply hose 3 is connected with secondary water equipment, described water meter 5 runs well under the driving of secondary water, indicate the water content entered in sandy soil in digital form, reduce operation easier, reduce experimental cost, improve the degree of accuracy of simulation sand liquefaction experiment sand water content.
The present invention is not limited to above-mentioned preferred forms, and anyone can draw other various forms of method for the liquefaction of sand fixed point and quantitative water supply in pile-soil interaction shaketalle test and devices under enlightenment of the present invention.All equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (8)
1., for sand fixed point liquefaction in pile-soil interaction shaketalle test and a method for quantitative water supply, it is characterized in that, carry out according to the following steps:
(1) provide a steel case, described steel box cavity center is perpendicular is provided with stake;
(2) at least one water inlet hard tube is vertically fixed on steel chamber interior wall;
(3) in steel case from bottom to top successively intersect be loaded with at least one sandy soils and at least one argillic horizon, height and position level predetermined in each sandy soils during splendid attire lays corresponding delivery hose, the delivery hose water inlet end of each layer is connected with corresponding water inlet hard tube lower end simultaneously, the all sides of described delivery hose evenly offer several ostium excurrenses, realize the liquefaction of sand fixed point;
(4) water inlet hard tube upper end is connected to corresponding water supply hose, described water supply hose is provided with water meter, realizes quantitative water supply.
2. according to claim 1 for sand fixed point liquefaction in pile-soil interaction shaketalle test and the method for quantitative water supply, it is characterized in that: the horizontal circle one in corresponding sandy soils of described delivery hose is enclosed.
3. according to claim 1 for sand fixed point liquefaction in pile-soil interaction shaketalle test and the method for quantitative water supply, it is characterized in that: the length of described water inlet hard tube to equal to intend in liquefied sand layer delivery hose to the distance of steel case top edge.
4. the method for the liquefaction of sand fixed point and quantitative water supply in pile-soil interaction shaketalle test according to claim 1 or 3, is characterized in that: described water inlet hard tube lower end stretches to the centre position of intending liquefied sand layer.
5. the device for the liquefaction of sand fixed point and quantitative water supply in pile-soil interaction shaketalle test, it is characterized in that: comprise steel case, described steel box cavity center is perpendicular is provided with stake, intersect successively from bottom to top in described steel case and be loaded with at least one sandy soils and at least one argillic horizon, height and position predetermined in described sandy soils is embedded with delivery hose, the all sides of described delivery hose evenly offer the ostium excurrens that several realize sand liquefaction, described steel chamber interior wall is fixed with the water inlet hard tube that at least one lower end is connected with the delivery hose water inlet end of corresponding sandy soils, described water inlet hard tube upper end is connected to corresponding water supply hose, described water supply hose is provided with the water meter of quantitatively water inlet.
6. according to claim 5 for sand fixed point liquefaction in pile-soil interaction shaketalle test and the device of quantitative water supply, it is characterized in that: the horizontal circle one in corresponding sandy soils of described delivery hose is enclosed.
7. according to claim 5 for sand fixed point liquefaction in pile-soil interaction shaketalle test and the device of quantitative water supply, it is characterized in that: the length of described water inlet hard tube to equal to intend in liquefied sand layer delivery hose to the distance of steel case top edge.
8. the device for the liquefaction of sand fixed point and quantitative water supply in pile-soil interaction shaketalle test according to claim 5 or 7, is characterized in that: described water inlet hard tube lower end stretches to the centre position of intending liquefied sand layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154038.9A CN104790440B (en) | 2015-04-03 | 2015-04-03 | During pile-soil interaction shaking table is tested, sand liquefies and the method fed water and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154038.9A CN104790440B (en) | 2015-04-03 | 2015-04-03 | During pile-soil interaction shaking table is tested, sand liquefies and the method fed water and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104790440A true CN104790440A (en) | 2015-07-22 |
| CN104790440B CN104790440B (en) | 2016-06-01 |
Family
ID=53555594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510154038.9A Expired - Fee Related CN104790440B (en) | 2015-04-03 | 2015-04-03 | During pile-soil interaction shaking table is tested, sand liquefies and the method fed water and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104790440B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108797655A (en) * | 2017-04-26 | 2018-11-13 | 黄河水利职业技术学院 | A kind of multi-functional soil body thixotropy and the anti-liquefaction functional simulation device of pile foundation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10183658A (en) * | 1996-12-24 | 1998-07-14 | Tokyo Gas Co Ltd | System and method for evaluating soundness of pile |
| CN2625883Y (en) * | 2003-06-25 | 2004-07-14 | 胜利石油管理局钻井工艺研究院 | Indoor experimental arrangement for pile-soil action |
| JP2011058912A (en) * | 2009-09-09 | 2011-03-24 | Railway Technical Res Inst | System and method for measuring earthquake impactive force |
| CN202969421U (en) * | 2012-12-24 | 2013-06-05 | 太原理工大学 | Indoor testing device for liquefaction resistant effects of pile foundations |
| CN203546767U (en) * | 2013-10-08 | 2014-04-16 | 清华大学 | Test device for researching pile-soil interaction |
-
2015
- 2015-04-03 CN CN201510154038.9A patent/CN104790440B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10183658A (en) * | 1996-12-24 | 1998-07-14 | Tokyo Gas Co Ltd | System and method for evaluating soundness of pile |
| CN2625883Y (en) * | 2003-06-25 | 2004-07-14 | 胜利石油管理局钻井工艺研究院 | Indoor experimental arrangement for pile-soil action |
| JP2011058912A (en) * | 2009-09-09 | 2011-03-24 | Railway Technical Res Inst | System and method for measuring earthquake impactive force |
| CN202969421U (en) * | 2012-12-24 | 2013-06-05 | 太原理工大学 | Indoor testing device for liquefaction resistant effects of pile foundations |
| CN203546767U (en) * | 2013-10-08 | 2014-04-16 | 清华大学 | Test device for researching pile-soil interaction |
Non-Patent Citations (1)
| Title |
|---|
| 孟庆娟等: "饱和砂土振动液化过程中桩土相互作用的试验研究", 《建筑科学》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108797655A (en) * | 2017-04-26 | 2018-11-13 | 黄河水利职业技术学院 | A kind of multi-functional soil body thixotropy and the anti-liquefaction functional simulation device of pile foundation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104790440B (en) | 2016-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102707034B (en) | Indoor model testing device and testing method employing air-pressure splitting vacuum preloading method | |
| CN109577929B (en) | Quantitative evaluation method for establishing effective displacement of ultra-low permeability tight reservoir horizontal well | |
| CN203606259U (en) | Device for determining infiltration rule of unsaturated soil | |
| CN108951532B (en) | Irrigation and drainage integrated farmland concealed pipe simulation device and method for determining concealed pipe combination | |
| CN105158444A (en) | System and method for measuring flow speed and flow of slope surface interflow | |
| CN103278516B (en) | Based on the rock core CT scan method of plan vertical gas injection | |
| CN105544573B (en) | Water pressure jetting type well completion construction method of dewatering tube well | |
| CN204877458U (en) | Haplopore multilayer position groundwater monitoring system | |
| CN112983368B (en) | Method for realizing balanced displacement of crude oil by injection-production optimization and chemical flooding | |
| CN203420706U (en) | Simulation experiment set of variable angle horizontal well | |
| CN106198356A (en) | The measuring method of moisture penetration rule in a kind of loess foundation | |
| CN104459069B (en) | Model test device and test method for monitoring effect of tunnel water inrush on groundwater environment | |
| CN205719868U (en) | Contaminated soil and subsoil water inject in situ repairs the pilot system that dilation angle determines | |
| CN104790440A (en) | Sandy soil liquefaction and water feeding method and device used for pile soil interaction shaking table test | |
| CN114486683A (en) | Test device for simulating pumping in foundation pit and recharging underground water outside foundation pit | |
| CN105259330B (en) | A kind of indoor experimental apparatus and use the method that this device carries out profile control | |
| CN202064960U (en) | Traversing tunnel type dissolved cavity stabilizing system | |
| CN108804761B (en) | Multi-medium groundwater migration simulation method and system | |
| CN203335041U (en) | Coal reservoir fracture gas and water flow conductivity dynamic change simulation test device | |
| CN103291251B (en) | Coal reservoir fracture gas, water flow conductivity dynamic change simulating test device | |
| KR20120134773A (en) | Device for measuring hydraulic conductivity and method thereof | |
| CN204694594U (en) | A kind of simulation CO 2the test unit of evenly diffusion in soil | |
| CN204287168U (en) | Tunnel gushing water is to underground water environmental impact monitoring model test unit | |
| CN205067484U (en) | Domatic interflow velocity of flow and flow measurement system | |
| CN205861587U (en) | Seepage flow freezing test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20160601 |