CN202689059U - Water injection test device for detecting wall body quality of high-ground-water-level diaphragm wall - Google Patents
Water injection test device for detecting wall body quality of high-ground-water-level diaphragm wall Download PDFInfo
- Publication number
- CN202689059U CN202689059U CN 201220282872 CN201220282872U CN202689059U CN 202689059 U CN202689059 U CN 202689059U CN 201220282872 CN201220282872 CN 201220282872 CN 201220282872 U CN201220282872 U CN 201220282872U CN 202689059 U CN202689059 U CN 202689059U
- Authority
- CN
- China
- Prior art keywords
- water
- wall
- wall body
- water injection
- ground
- 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
- 238000012360 testing method Methods 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000002347 injection Methods 0.000 title claims abstract description 27
- 239000007924 injection Substances 0.000 title claims abstract description 27
- 239000003673 groundwater Substances 0.000 title abstract description 6
- 239000007921 spray Substances 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract description 3
- 239000002689 soil Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a water injection test device for detecting wall body quality of a high-ground-water-level diaphragm wall. The water injection test device for detecting the wall body quality of the high-ground-water-level diaphragm wall comprises a pulp stopping plug (2) and a guide pipe (3), wherein the pulp stopping plug (2) is positioned at a drilled hole (1) of a high spraying wall body, and a round hole is formed in the pulp stopping plug (2); the guide pipe (3) is a round pipe, and is thin in the lower part, ad is thick in the upper part; the lower part of the guide pipe (3) is inserted into the round hole of the pulp stopping plug (2) and penetrates through the pulp stopping plug (2); and the upper end of the guide pipe (3) is positioned on the ground surface. The wall body quality of the high-ground-water-level diaphragm wall is detected by utilizing the device provided by the utility model, and the interference on the detection result by external underground water of the diaphragm wall body can be removed completely, thus the accurate detection data can be obtained, and the water injection test device for detecting the wall body quality of the high-ground-water-level diaphragm wall has the advantages of simpleness, convenience, feasibility and reliable result, and is suitable for the wall body engineering quality detection of a high-pressure rotary spraying underground diaphragm wall at any part and any depth.
Description
Technical field
The utility model relates to the water injection test device of the anti-seepage effect that detects high-pressure rotary-spray underground anti-seepage curtain, is applicable to optional position, the quality examination of degree of depth high-pressure rotary-spray underground impervious wall walling work.
Background technology
High-pressure Spiral Spray Technology is applicable to antiseepage, the reinforcing of all kinds of soil layers.When adopting high spray technique to do underground impervious wall, need after becoming wall, to detect the antiseepage quality of body of wall, and make quantitative assessment.Wherein water injection test is a kind of detection method of code requirement.
Although the equipment characteristic of high-pressure spray process determines to use the underground impervious wall of this technology formation to become wall at underground arbitrary desired location, still having an appointment far from the earth's surface in its top can't form impervious wall about 1m.When adopting the boring method water injection test to detect quality of wall, can have two kinds of situations to produce: the one, body of wall is buried underground, and a segment distance is arranged apart from the earth's surface; The 2nd, the body of wall top is very near far from the earth's surface.Because the leakage proof wall infiltration capacity that forms is little, general K＜10
-5Cm/s, when then occuring during on-test behind the stable level in the hole by the water injection test standard operation: (1) when test section is darker water injection rate can't accurately measure; Wall top can be infiltrated in the hole or the water in the hole is overflowed from the soil body so that the soil body of upper part is moisture when (2) the test section buried depth was more shallow, caused result of the test inaccurate.
Summary of the invention
The purpose of this utility model is exactly for the defects that exists in the prior art, and a kind of water injection test device that detects phreatic high cut-off wall quality is provided.Utilize this device, and the water injection technology when testing according to the water injection test standard, test section all can obtain reliably at underground deep or at the near surface place, experimental data accurately no matter make.
For realizing above-mentioned purpose of the present utility model, a kind of water injection test device that detects phreatic high cut-off wall quality of the utility model is achieved through the following technical solutions.
A kind of water injection test device that detects phreatic high cut-off wall quality of the utility model comprises stop grouting plug, conduit.Described stop grouting plug is positioned at the drill hole of high spray body of wall, and the inside of stop grouting plug is provided with circular hole; Described conduit is pipe, and the bottom is thin, top is thick.The circular hole of the bottom insertion stop grouting plug of conduit is interior and pass stop grouting plug, and the upper end of conduit is positioned on the earth's surface.
The utility model is by after holing on the leakage proof wall, utilize the stop grouting plug blocking-up boring top of curtain-grouting to pass contacting of soil body section and test section, simultaneously one section PVC conduit is passed stop grouting plug and cause the earth's surface, water level in water filling, the hole, the water yield are observed all in the ground table handling, difficulty had both simplified the operation, get rid of simultaneously the leakage proof wall top soil body moisture to supply or effusion in holing, thereby improved the degree of accuracy that measures.
After a kind of water injection test device that detects phreatic high cut-off wall quality of the utility model adopts above technical scheme, have following effect:
The accurate-metering of (1) convenient test middle water level observation, each water injection rate;
(2) get rid of the moisture interference that water after supply in holing or the water filling is overflowed from the soil body of the leakage proof wall top soil body, improve test accuracy;
(3) test method does not change the operation requirements of water injection test standard, but simple and easy to operate, and the data obtained accurately, reliably.
Description of drawings
Fig. 1 is a kind of vertical arrangement diagram that detects the water injection test device of phreatic high cut-off wall quality of the utility model.
The specific embodiment
For further describing the utility model, below in conjunction with drawings and Examples a kind of water injection test device that detects phreatic high cut-off wall quality of the utility model is described in further detail.
By Figure 1 shows that a kind of vertical arrangement diagram that detects the water injection test device of phreatic high cut-off wall quality of the utility model finds out, a kind of water injection test device that detects phreatic high cut-off wall quality of the utility model comprises stop grouting plug 2, conduit 3.Described stop grouting plug 2 is positioned at boring 1 place of high spray body of wall, and the inside of stop grouting plug 2 is provided with circular hole; Described conduit 3 is pipe, and the bottom is thin, top is thick.The circular hole of the bottom insertion stop grouting plug 2 of conduit 3 is interior and pass stop grouting plug 2, and the upper end of conduit 3 is positioned on the earth's surface.
The water injection test method that adopts the utility model to detect phreatic high cut-off wall quality is:
(1) according to designing requirement, specifies the test hole position, determines boring 1 degree of depth by project supervision;
(2) hole in the test hole position, the aperture is determined according to the size of stop grouting plug 2, but is not less than 75mm;
(3) the bottom bottom is thin, cylindrical PVC conduit 3 that top is thick is inserted in the circular hole of stop grouting plug 2 and is passed stop grouting plug, boring 1 place of stop grouting plug 2 being put paramount spray body of wall, and with stop grouting plug 2 location; Soil layer is passed on the top of described PVC conduit 3, and its upper-end part of driving is on the earth's surface.
(4) hydraulic connection on stop grouting plug 2 pressurized expansion blocking test sections and boring top;
(5) water injection test begins behind the conduit 3 interior stable levels;
(6) metric data is added up in safety model operation one by one, draws result of the test.
Under the test situation, the conduit overhead height〉water injection test water level 6 height〉the earth's surface height〉groundwater table 5 height〉impervious wall top 4 height.
Adopt the utility model device, can block detection segment and outside hydraulic connection fully, result of the test truly represents the level of interpenetration of leakage proof wall self, and experimental data is accurate.The utility model method is positioned over stop grouting plug in the high boring of spraying in the body of wall, carry out at water filling fairlead top in the hole, be easy to observe, each water injection rate metering accurately, error is little between the experimental data of each time, final result is reliable, the experimental data in each hole is added up and can be made accurate judge to the construction quality of this project after the porous test.
Claims (1)
1. water injection test device that detects phreatic high cut-off wall quality, it is characterized in that: it comprises stop grouting plug (2), conduit (3), described stop grouting plug (2) is positioned at the boring (1) of high spray body of wall to be located, and the inside of stop grouting plug (2) is provided with circular hole; Described conduit (3) is pipe, and the bottom is thin, top is thick, and the circular hole of the bottom insertion stop grouting plug (2) of conduit (3) is interior and pass stop grouting plug (2), and the upper end of conduit (3) is positioned on the earth's surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220282872 CN202689059U (en) | 2012-06-15 | 2012-06-15 | Water injection test device for detecting wall body quality of high-ground-water-level diaphragm wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220282872 CN202689059U (en) | 2012-06-15 | 2012-06-15 | Water injection test device for detecting wall body quality of high-ground-water-level diaphragm wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202689059U true CN202689059U (en) | 2013-01-23 |
Family
ID=47544699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220282872 Expired - Fee Related CN202689059U (en) | 2012-06-15 | 2012-06-15 | Water injection test device for detecting wall body quality of high-ground-water-level diaphragm wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202689059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595647A (en) * | 2020-12-14 | 2021-04-02 | 广东省水利水电科学研究院 | Testing device and method for detecting seepage failure ratio degradation quality of plastic concrete impervious wall |
-
2012
- 2012-06-15 CN CN 201220282872 patent/CN202689059U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595647A (en) * | 2020-12-14 | 2021-04-02 | 广东省水利水电科学研究院 | Testing device and method for detecting seepage failure ratio degradation quality of plastic concrete impervious wall |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106226497B (en) | Test device and method for simulating influence of shield tunnel synchronous grouting on stratum settlement | |
| CN106088174B (en) | A kind of soft clay area diaphram wall seepage detection system | |
| CN108195723B (en) | Permeation grouting test system and method for reinforcing loose gravel soil | |
| CN103234490B (en) | A kind of water seal underground oil storage cave depot water seal effect measure and control device | |
| CN103868569A (en) | Device and setting method for measuring underground water level of vacuum drainage prepressing sealing membrane | |
| CN109060073B (en) | Device and method for observing double-layer underground water level in karst mountain area through single hole | |
| CN103953025A (en) | Equipment for measuring layered settlement of deep soft soil or blanket and setup method thereof | |
| CN206627405U (en) | The double embolism original position injection pressure water penetration detectors of expansion type | |
| CN104569341A (en) | Vacuum preloading and electroosmosis combined testing device and vacuum preloading and electroosmosis combined testing method | |
| CN103233453B (en) | A kind of original position soil body surveying method | |
| CN105806712A (en) | Test device and test system for water pressure in hole | |
| KR102433682B1 (en) | Multipurpose total inspection device and digital construction method of multi-step grouting with steel pipe using the same | |
| CN110207657B (en) | Thick unconsolidated formation mining rock stratum movement and surface subsidence detection device | |
| CN204112378U (en) | A kind of two casing device of pile measurement with emulation buffer action | |
| CN113176044B (en) | Underground diaphragm wall leakage detection method based on tracer | |
| CN202548085U (en) | Detection device for burial depth of dam cut-off wall | |
| CN202689059U (en) | Water injection test device for detecting wall body quality of high-ground-water-level diaphragm wall | |
| CN102691318A (en) | Water injection test method for detecting quality of high-groundwater-level diaphragm wall body | |
| CN207472306U (en) | A kind of pipeclay in situ effect test system with hydraulic suction cylinder basis | |
| CN212405086U (en) | Disposal and detection structure for karst cave under rock-socketed pile base | |
| CN206862446U (en) | A kind of inclinometer pipe available for Water Level in Foundation Pit monitoring | |
| CN112525797A (en) | Soil body horizontal permeability coefficient testing device | |
| CN208872285U (en) | A kind of earth and rockfill dam impervious body DEFORMATION MONITORING SYSTEM | |
| CN114183147B (en) | Tunnel environment simulation model and method | |
| CN206458505U (en) | A kind of pressure gauge hole for measuring wall-rock crack water pressure |
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: 20130123 Termination date: 20160615 |