CN205134393U - A drilling arrangement structure for detecting underground continuous wall seepage - Google Patents
A drilling arrangement structure for detecting underground continuous wall seepage Download PDFInfo
- Publication number
- CN205134393U CN205134393U CN201520803305.6U CN201520803305U CN205134393U CN 205134393 U CN205134393 U CN 205134393U CN 201520803305 U CN201520803305 U CN 201520803305U CN 205134393 U CN205134393 U CN 205134393U
- Authority
- CN
- China
- Prior art keywords
- boring
- diaphragm wall
- underground continuous
- continuous wall
- detecting
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 9
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 238000004826 seaming Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 238000013480 data collection Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model relates to a geotechnical engineering detection and test field, concretely relates to a drilling arrangement structure for detecting underground continuous wall seepage, its characterized in that: it is a plurality of drilling is seted up at underground continuous wall's inside and outside both sides, homonymy line between the drilling covers district's section is examined to the waiting of underground continuous wall, the homonymy is adjacent two line between the drilling covers underground continuous wall's seam position. The utility model has the advantages that: data collection volume is big, survey resolution ratio high, to advantages such as resistivity difference sensitivities, gained better effect in the aspect of ground wall leakage detection, can once only carry out leakage detection to certain section underground continuous wall, the structure itself to underground continuous wall does not produce any influence simultaneously.
Description
Technical field
The utility model relates to rock and soil engineering detection and field tests, is specifically related to the boring arrangement for detecting diaphragm wall seepage.
Background technology
Along with developing rapidly of urban underground space construction, foundation ditch project gets more and more, and not only foundation ditch area strengthens gradually, and the excavation of foundation pit degree of depth is also more and more darker, and diaphragm wall is widely applied as the deep footing groove enclosing structure that a kind of combination property is good.Be limited to the factors such as the construction technology of diaphragm wall, joint form, ground environment impact, the possibility making body of wall there is hidden leakage defect increases, serious threat is to the construction safety of foundation ditch, and the place of diaphragm wall generation percolating water is positioned at the seam crossing of diaphragm wall mostly.Because body of wall is hidden under soil layer before excavation of foundation pit, artesian water and water barrier also exist again discontinuous interlock, therefore in the process of construction of diaphragm wall, excavation, directly cannot observe the impact of artesian water on body of wall, one indirectly observed pattern must be adopted, judge whether to there is the exceptions such as seepage.
The geophysical prospecting technologies such as supercritical ultrasonics technology, sonic method and ground penetrating radar method are with its advantage such as efficient, harmless, quick, be usually used in the Defect inspection of construction inner, but be limited to the detection principle of self, these methods are insensitive to the electric conductivity of ion, therefore effectively can not identify the leakage anomaly district of diaphragm wall.On the other hand, for the leak detection of the space enclosing structures such as diaphragm wall, compare ground detection pattern, in Kong Jian, hole, geophysical prospecting method has better Effect on Detecting, and its resolution ratio is higher.
Summary of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art, provide the boring arrangement for detecting diaphragm wall seepage, forward and backward by comparing foundation pit dewatering, resistivity between the hole of the boring of diaphragm wall both sides, judges whether diaphragm wall exists position and the scope of seepage and breakthrough.
The utility model object realizes being completed by following technical scheme:
A kind of boring arrangement for detecting diaphragm wall seepage, it is characterized in that: some described boring is opened in the inside and outside both sides of diaphragm wall, line described in homonymy between boring covers the section to be checked of described diaphragm wall, and the line between adjacent two the described borings of homonymy covers the seaming position of described diaphragm wall.
The outside being positioned at the described boring outside described diaphragm wall offers at least one solion injection hole, on the center line of described solion injection hole line between adjacent two described borings.
The hole depth of described solion injection hole is less than the hole depth of described boring.
Described drilling depth is not less than the degree of depth of described diaphragm wall.
Pitch of holes between adjacent two the described borings of homonymy is the 1/3-1/2 of its degree of depth.
Be symmetrical set between the described boring of the inside and outside both sides of described diaphragm wall.
Line between the described boring of homonymy parallels with described diaphragm wall.
The utility model has the advantages that: image data amount is large, detection resolution is high, to advantages such as resistivity contrasts sensitivities, achieve good effect in ground wall leak detection; Disposablely can carry out leak detection to certain section of diaphragm wall, any impact not produced on the structure of diaphragm wall itself simultaneously.
Accompanying drawing explanation
Fig. 1 is the first boring arrangement schematic diagram of the present utility model;
Fig. 2 is the second of the present utility model boring arrangement schematic diagram.
Detailed description of the invention
The utility model feature and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that the understanding of technician of the same trade:
As shown in Figure 1-2, mark 1-4, A1-A4, B1-B4, Y1-Y2 in figure to be respectively: diaphragm wall 1, cable 2, detecting instrument 3, seam 4, boring A1-A4, boring B1-B4, solion injection hole Y1-Y2.
Embodiment one: as shown in Figure 1, boring arrangement for detecting diaphragm wall seepage in the present embodiment comprises boring A1-A4, boring B1-B4, boring A1-A4 and boring B1-B4 is opened in the inside and outside both sides of diaphragm wall 1 respectively, and the line between boring A1-A4 and boring B1-B4 all covers the section to be checked of diaphragm wall.
The pitch of holes of boring between A1-A4, B1-B4 need according to field condition and the scope decision that need detect diaphragm wall 1, generally equal the 1/3-1/2 of drilling depth, but be no more than 10m, because if the pitch of holes of boring is too large, the propagation of electrical signals so sent from the emission electrode of checkout equipment 3 in a boring is apart from too far away, and the collecting electrode being positioned at the checkout equipment 3 of another boring cannot receive useful signal, affect last result of detection.
Boring A1-A4, B1-B4 of the inside and outside both sides of foundation ditch should respectively apart from diaphragm wall 1-2m, if between boring and diaphragm wall apart from too far away, then cannot the seepage region of wall over the ground effectively detect.Boring A1-A4 line and boring B1-B4 line all with diaphragm wall 1 keeping parallelism, and the position of every two borings in the inside and outside both sides of diaphragm wall 1 is symmetrically laid relative to diaphragm wall 1, as hole in Fig. 1 A1-B1, A2-B2, A3-B3, A4-B4; So, resistivity imaging two dimensional cross-section result map between continuous print measured hole hole can be formed, namely the resistivity profile of A1-B1 section can splice with the resistivity profile of A2-B2 section, form boring A1-A2(B1-B2) resistivity profile in scope, be convenient to the follow-up resistivity contrasts comparing the inside and outside both sides of diaphragm wall 1, thus the location completed breakthrough in diaphragm wall 1 surveyed area and form identification.
Boring A1-A4, the degree of depth of B1-B4 should be determined according to the degree of depth of diaphragm wall 1 to be checked, owing to laying respectively at emission electrode in two borings and collecting electrode carries out the transmitting and receiving of electric current with certain angle, the electric current ray pair of mutual oblique will be formed between boring, therefore a leg-of-mutton detection blind area can all be formed in the upper and lower certain distance between the hole that obtains of in the end inverting in resistivity profile, i.e. false data, the data section obtained for making detection comprises all effective informations in max survey depth, therefore drilling depth need be greater than the degree of depth of diaphragm wall 1 to be checked in engineering, general need exceed ground to be checked wall about 5m.
Embodiment two: the difference of the present embodiment and embodiment one is: as shown in Figure 2, the outside being positioned at the boring A1-A3 outside diaphragm wall 1 offers two solion injection holes Y1, Y2.Solion injection hole Y1, Y2 lay respectively on the median vertical line of adjacent two borings line between A1-A2, A2-A3, thus ensure that solion can be uniformly scattered onto among the medium between boring A1-A2, between boring A2-A3 from solion injection hole Y1, Y2.The hole depth of solion injection hole Y1, Y2 is less than the hole depth of boring A1-A3, if because solion injection hole Y1, Y2 are too dark, be unfavorable for the Horizontal Movement of solion, making it act on cannot realize, and increases unnecessary engineering cost.
As shown in Figure 2, line between the instrument connection that homonymy is adjacent covers the seam 4 of diaphragm wall 1, as seam 4 is positioned at instrument connection A1-A2(B1-B2), A2-A3(B2-B3) between, avoid should the seam 4 of happening part being just in time on the vertical line direction of instrument connection and diaphragm wall as seepage, make the resistivity profile figure between instrument connection can show the change in resistance at seam 4 place intuitively, significantly, thus raising accuracy of detection, avoid surveying by mistake, leaking hunting.
Above-described embodiment is when embody rule: detecting instrument 3 can gather voltage, current data between two borings by electrical instrument in optional holes, need during data acquisition to lay respectively in the boring of relative two, side and be fixed on by certain intervals, quantity the multicore cable that the electrode on cable 2 forms, multicore is connected to the instrument host on ground, the electrode being positioned at a boring is emission electrode, and the electrode in another boring corresponding with it is collecting electrode.Electrode spacing in multicore cable selects 0.2m, 0.5m or 1.0m according to the detect aperture degree of depth, and when number of poles is certain, the size of electrode spacing is directly proportional to the detection degree of depth, and the degree of depth of detection is larger, then electrode spacing is larger.
Claims (7)
1. one kind for detecting the boring arrangement of diaphragm wall seepage, it is characterized in that: some described boring is opened in the inside and outside both sides of diaphragm wall, line described in homonymy between boring covers the section to be checked of described diaphragm wall, and the line between adjacent two the described borings of homonymy covers the seaming position of described diaphragm wall.
2. a kind of boring arrangement for detecting diaphragm wall seepage according to claim 1, it is characterized in that: the outside being positioned at the described boring outside described diaphragm wall offers at least one solion injection hole, on the center line of described solion injection hole line between adjacent two described borings.
3. a kind of boring arrangement for detecting diaphragm wall seepage according to claim 2, is characterized in that: the hole depth of described solion injection hole is less than the hole depth of described boring.
4. a kind of boring arrangement for detecting diaphragm wall seepage according to claim 1 and 2, is characterized in that: described drilling depth is not less than the degree of depth of described diaphragm wall.
5. a kind of boring arrangement for detecting diaphragm wall seepage according to claim 1 and 2, is characterized in that: the pitch of holes between adjacent two the described borings of homonymy is the 1/3-1/2 of its degree of depth.
6. a kind of boring arrangement for detecting diaphragm wall seepage according to claim 1, is characterized in that: be symmetrical set between the described boring of the inside and outside both sides of described diaphragm wall.
7. a kind of boring arrangement for detecting diaphragm wall seepage according to claim 1, is characterized in that: the line between the described boring of homonymy parallels with described diaphragm wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520803305.6U CN205134393U (en) | 2015-10-16 | 2015-10-16 | A drilling arrangement structure for detecting underground continuous wall seepage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520803305.6U CN205134393U (en) | 2015-10-16 | 2015-10-16 | A drilling arrangement structure for detecting underground continuous wall seepage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205134393U true CN205134393U (en) | 2016-04-06 |
Family
ID=55620200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520803305.6U Active CN205134393U (en) | 2015-10-16 | 2015-10-16 | A drilling arrangement structure for detecting underground continuous wall seepage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205134393U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838630A (en) * | 2016-12-26 | 2017-06-13 | 上海岩土工程勘察设计研究院有限公司 | A kind of method for large-scale draining pipe culvert leak detection |
| CN108844684A (en) * | 2018-04-17 | 2018-11-20 | 中国矿业大学 | A method of monitoring diaphram wall seam crossing leakage scenarios |
-
2015
- 2015-10-16 CN CN201520803305.6U patent/CN205134393U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838630A (en) * | 2016-12-26 | 2017-06-13 | 上海岩土工程勘察设计研究院有限公司 | A kind of method for large-scale draining pipe culvert leak detection |
| CN108844684A (en) * | 2018-04-17 | 2018-11-20 | 中国矿业大学 | A method of monitoring diaphram wall seam crossing leakage scenarios |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105239609B (en) | Underground continuous wall leakage detection method | |
| CN105604066B (en) | Application of the resistivity profiling in the detection of building foundation pit building enclosure percolating water | |
| CN106597568A (en) | Large-scale drainage pipe culvert positioning method | |
| CN102955174B (en) | Method and device for detecting geological flaws at bottom of foundation pile holes through geological radar | |
| CN107829453A (en) | A kind of method and device of vertical plastic spreading seepage proof curtain leak detection | |
| CN102590874B (en) | Method for detecting ground surface crack of upland coal-mining subsidence paddy field | |
| CN102866417A (en) | Device and method for seismic cross hole computed tomography (CT) detection and tomography of underground cave | |
| CN105116453A (en) | Transient electromagnetic exploration method and apparatus for tundra natural gas hydrate | |
| CN108303729B (en) | Karst detection method for shield tunnel affected area under building | |
| Arjwech et al. | Electrical resistivity imaging of unknown bridge foundations | |
| Gao et al. | Dynamic monitoring of water in a working face floor using 2D electrical resistivity tomography (ERT) | |
| CN105842740A (en) | Fixed point rotary irradiation large power transient electromagnetic method | |
| CN105158301A (en) | Polluted soil detection method based on cross-hole resistivity CT method | |
| CN113419294A (en) | Comprehensive detection method for multi-dimensional karst special geology | |
| Radzicki et al. | A new levee control system based on geotechnical and geophysical surveys including active thermal sensing: A case study from Poland | |
| Gao et al. | Water detection within the working face of an underground coal mine using 3D electric resistivity tomography (ERT) | |
| CN205134393U (en) | A drilling arrangement structure for detecting underground continuous wall seepage | |
| CN106838630A (en) | A kind of method for large-scale draining pipe culvert leak detection | |
| CN113703058A (en) | Method for detecting underground obstacle by utilizing apparent conductivity and relative dielectric constant | |
| Elawadi et al. | Integrated geophysical survey for site investigation at a new dwelling area, Egypt | |
| CN105548362A (en) | Acoustic reflection device and method for detecting pile hole base geological flaws | |
| CN103765246A (en) | Apparatus and method for non-invasive real-time subsoil inspection | |
| CN108797656A (en) | A kind of detection method of pile foundation multilayer karst cave | |
| Liu et al. | Application of borehole radar for dam leakage detection | |
| Zhou et al. | Application of ground penetrating radar in detecting deeply embedded reinforcing bars in pile foundation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 200032 18, building 681, Xiao Mu Qiao Road, Xuhui District, Shanghai. Patentee after: Shanghai Survey, Design and Research Institute (Group) Co.,Ltd. Country or region after: China Address before: 200032 18, building 681, Xiao Mu Qiao Road, Xuhui District, Shanghai. Patentee before: SHANGHAI GEOTECHNICAL INVESTIGATIONS & DESIGN INSTITUTE Co.,Ltd. Country or region before: China |