CN102809757A - Seismic refraction wave exploration method for cross section of river bed and device thereof - Google Patents
Seismic refraction wave exploration method for cross section of river bed and device thereof Download PDFInfo
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- CN102809757A CN102809757A CN2011101492230A CN201110149223A CN102809757A CN 102809757 A CN102809757 A CN 102809757A CN 2011101492230 A CN2011101492230 A CN 2011101492230A CN 201110149223 A CN201110149223 A CN 201110149223A CN 102809757 A CN102809757 A CN 102809757A
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- riverbed
- exploration
- blasting charge
- transversal section
- refraction wave
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000005422 blasting Methods 0.000 claims description 41
- 239000002360 explosive Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000011435 rock Substances 0.000 claims description 4
- 239000003999 initiator Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 239000000725 suspension Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
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- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a seismic refraction wave exploration method for a cross section of a river bed and a device thereof. The method comprises the following steps that: impulse points are arranged along the cross section of the river bed at equal intervals, the manual impulse is sequentially carried out on each impulse point, seismic waves generated in the manual impulse process are converted into refracted waves after being refracted by a bedrock surface of the river bed, and the refracted waves are received by transducers on banks at both sides and are recorded by engineering seismographs; and propagation time data of two groups of refracted waves recorded by the transducers on both the banks and the positions of the impulse points are calculated and processed to obtain the thickness of a coverage layer of the cross section of one section of river bed. According to the invention, a buoyant cable with the unit price of 150,000RMB does not need to be used, so that the exploration cost is greatly saved. In the exploration process, the cable is sunk at the river bottom and does not influence the navigation of ships, and thus, in the exploration process, the shipping suspension does not need to be carried out. Steel wires do not need to be hung under the complex hydrologic condition, and thus, the exploration is safe to carry out and is not influenced by the width of the river surface.
Description
Technical field
the present invention relates to transversal section, a kind of riverbed earthquake refraction wave method of exploration and device thereof, belong to exploration engineering field, riverbed.
Background technology
are in water power hydraulic engineering and bridge prospecting; Usually adopt the earthquake refraction wave method of exploration to find out the tectal thickness in transversal section, riverbed; Its observation procedure generally is employed in river surface and draws transducer or employing buoyant cable connection transducer on the wire peg, the method that end points impulses on the section both sides then.But when river surface is too wide, adopt the method draw steel wire can cause the steel wire can't be stretching, influence the seismic prospecting effect.The drop-down extension steel wire of complicated in addition hydrologic condition also brings bigger potential safety hazard, and essential in the course of the work navigation ban.Buoyant cable cost high (about 150,000/root), generally need customized, and also essential navigation ban during work.Therefore, transversal section, existing riverbed method of exploration still is not ideal enough.
Summary of the invention
the objective of the invention is to: provide that a kind of exploration effects is good, exploration safety, exploration process do not need navigation ban and low transversal section, riverbed earthquake refraction wave method of exploration and the device thereof of prospecting prime cost, to overcome the deficiency of prior art.
technical scheme of the present invention: transversal section, a kind of riverbed of the present invention earthquake refraction wave method of exploration is; Along the river the transversal section of bed is equidistantly laid and is impulsed a little; A little carrying out manual work to respectively impulsing successively impulses; The seismic event that produces when manual work impulses converts refraction wave to after the refraction of riverbed bedrock surface, refraction wave is received by the transducer on the riverbank, both sides, and by the engineering seismograph record; Handle with a little the position of impulsing through birefringence wave propagation time data and to obtain one section tectal thickness in riverbed.
In the earthquake refraction wave method of exploration of
transversal section, aforementioned riverbed; It is to be located at the blasting charge acquisition on impulsing a little through ignition that said manual work impulses; The explosive dosage of the blasting charge obtains through site test, on the blasting charge, binds the heavy burden rock and is sunken to the river bed.
In the earthquake refraction wave method of exploration of
transversal section, aforementioned riverbed, the said time that impulses passes to engineering seismograph through the timing cable that is connected with each blasting charge with the fired charge bag time.
In the earthquake refraction wave method of exploration of
transversal section, aforementioned riverbed, accurately locate at river surface by GPS the said position that respectively impulses a little.
In the earthquake refraction wave method of exploration of
transversal section, aforementioned riverbed, the said blasting charge is ignited through the initiator that is docked on the work boat on the river surface; Waterproof detonate cable sink under water with the blasting charge on detonator be connected.
Transversal section, the of the present invention a kind of riverbed earthquake refraction wave exploration device that
make up according to the method described above comprises that the transducer that is located at the two sides, river is located at one group of blasting charge on the water-bed riverbed with the interval; The transducer of two sides, river is connected with engineering seismograph respectively through signal cable, and engineering seismograph is connected with each blasting charge through the timing cable; Each blasting charge is connected with ignition ship on the river surface through the waterproof cable that detonates.
All locate on water-bed riverbed through the GPS locating device position of
above-mentioned each blasting charge.
In
above-mentioned each blasting charge explosive is housed.
owing to adopted technique scheme, the present invention need not use 150,000 yuan one buoyant cable, has practiced thrift prospecting prime cost greatly.Because cable sinks to the river bed in exploration process, do not influence the ship navigation, so the present invention does not need navigation ban in exploration process.Because the present invention need be at the drop-down extension steel wire of complicated hydrologic condition,, do not receive the influence of river surface width so explore fool proofly.Therefore, the present invention compared with prior art, the present invention has not only that prospecting prime cost is low, exploration effects good, the advantage of exploration safety, but also have that implementation and operation is convenient, exploration process does not need navigation ban, to exploration environmental requirement advantages of higher not.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the partial enlarged drawing of Fig. 1.
Being labeled as in
accompanying drawing: the 1-transducer, the 2-blasting charge, the 3-cable, the 4-engineering seismograph, 5-timing cable, the 6-blasting cable, 7-ignites ship.
Embodiment
embodiments of the invention: during transversal section, a kind of riverbed earthquake refraction wave method of exploration of embodiment of the present invention; As shown in Figure 1; This method is that equidistant laying the in the transversal section of bed along the river impulses a little, a little carries out manual work to respectively impulsing successively and impulses, and the seismic event that produces when manual work impulses converts refraction wave to after the refraction of riverbed bedrock surface; Refraction wave is received by the transducer on the riverbank, both sides, and by the engineering seismograph record; Handle with a little the position of impulsing through birefringence wave propagation time data and to obtain the tectal thickness in transversal section, one section riverbed.It is to be located at the blasting charge acquisition on impulsing a little through ignition that said manual work impulses, and the explosive dosage of the blasting charge obtains through site test, on the blasting charge, binds the heavy burden rock and is sunken to the river bed.The said time that impulses passes to engineering seismograph through the timing cable that is connected with each blasting charge with the fired charge bag time.Accurately locate at river surface through the GPS locating device a said position that impulses.The said blasting charge is ignited through the initiator that is docked on the work boat on the river surface; Waterproof detonate cable sink under water with the blasting charge on detonator be connected.
are used for transversal section, a kind of riverbed earthquake refraction wave exploration device of the inventive method, and its structural representation is as depicted in figs. 1 and 2, and this device comprises that the transducer 1 that is located at the two sides, river is located at one group of blasting charge 2 on the water-bed riverbed with the interval; The transducer 1 of two sides, river is connected with engineering seismograph 4 respectively through signal cable 3, and engineering seismograph 4 is connected with each blasting charge 2 through timing cable 5; Each blasting charge 2 is connected with ignition ship 7 on the river surface through the waterproof cable 6 that detonates; Locate in water-bed riverbed by existing GPS locating device the position of said each blasting charge 2; In each blasting charge 2, load onto the explosive of the effective dose of obtaining through site test by existing mode then.
Below, implementation process of the present invention is further specified as follows:
are as shown in Figure 1, lay two engineering seismographs respectively in the two sides, riverbed, and every engineering seismograph 4 is laid a transducer 1 and is connected with engineering seismograph 4 through signal cable 3.Wrap the explosive of the effective dose that site test obtains, washed away maybe and can not sink under water by current, can tie up a heavy burden rock at the blasting charge 2 for preventing the blasting charge 2; Detonator and the waterproof cable 6 that detonates is connected, ties up water-proof cable in the blasting charge 2 outsides and short circuit connects, with the position a little that impulses, GPS location; Put down the blasting charge; After engineering seismograph 4 starts were ready to, fired charge obtained two seismologic records.Repeat above-mentioned work and obtain the 2nd seismologic record that impulses a little.Continue above-mentioned steps, accomplish until the investigation and prospecting in whole riverbed.In entire work process, cable all sinks under water, so do not have influence on water surface navigation.
embodiment of the present invention is not limited to the foregoing description, and the various variations of under the prerequisite that does not break away from aim of the present invention, making all belong within protection scope of the present invention.
Claims (8)
1. transversal section, riverbed earthquake refraction wave method of exploration; It is characterized in that: this method is equidistantly to lay in the transversal section in riverbed to impulse a little; A little carrying out manual work to respectively impulsing successively impulses; The seismic event that produces when manual work impulses converts refraction wave to after the refraction of riverbed bedrock surface, refraction wave is received by the transducer on the riverbank, both sides synchronously, and by the engineering seismograph record; The travel-time data of two groups of refraction waves through two sides engineering seismograph record obtain the tectal thickness in transversal section, one section riverbed with the position that impulses a little after computing.
2. according to transversal section, the said riverbed of claim 1 earthquake refraction wave method of exploration; It is characterized in that: it is to be located at the blasting charge acquisition on impulsing a little through ignition that said manual work impulses; The explosive dosage of the blasting charge obtains through site test, on the blasting charge, binds the heavy burden rock and is sunken to the river bed.
3. according to transversal section, the said riverbed of claim 1 earthquake refraction wave method of exploration; It is characterized in that: the said time of impulsing is the time of engineering seismograph opening entry seismic signal, through the timing cable that is connected with each blasting charge the fired charge bag time is passed to the engineering seismograph appearance.
4. according to transversal section, the said riverbed of claim 1 earthquake refraction wave method of exploration, it is characterized in that: a said position that impulses is accurately located the back through the GPS locating device at river surface and is thrown in the blasting charge.
5. according to transversal section, the said riverbed of claim 2 earthquake refraction wave method of exploration, it is characterized in that: the said blasting charge is ignited through the work boat that is docked on the river surface; Waterproof detonate cable sink under water with the blasting charge on detonator be connected.
6. transversal section, riverbed earthquake refraction wave exploration device, it is characterized in that: this device comprises the transducer (1) that is located at the two sides, riverbed and equidistantly is located at the one group of blasting charge (2) on the water-bed riverbed; The transducer of two sides, river (1) is connected with engineering seismograph (4) respectively through signal cable (3), and engineering seismograph (4) is connected with each blasting charge (2) through timing cable (5); The initiator of each blasting charge (2) on the ignition ship (7) on blasting cable (6) and the river surface is connected.
7. transversal section, riverbed according to claim 6 earthquake refraction wave exploration device is characterized in that: all locate on water-bed riverbed through the GPS locating device position of said each blasting charge (2).
8. transversal section, riverbed according to claim 7 earthquake refraction wave exploration device is characterized in that: in said each blasting charge (2) explosive is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110149223.0A CN102809757B (en) | 2011-06-03 | 2011-06-03 | Seismic refracted wave exploration method and device for cross section of riverbed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110149223.0A CN102809757B (en) | 2011-06-03 | 2011-06-03 | Seismic refracted wave exploration method and device for cross section of riverbed |
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| CN102809757A true CN102809757A (en) | 2012-12-05 |
| CN102809757B CN102809757B (en) | 2015-04-15 |
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| CN201110149223.0A Active CN102809757B (en) | 2011-06-03 | 2011-06-03 | Seismic refracted wave exploration method and device for cross section of riverbed |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091706A (en) * | 2013-02-19 | 2013-05-08 | 中国石油集团东方地球物理勘探有限责任公司 | Sludge settling pound earthquake exploration method |
| CN106442527A (en) * | 2016-08-31 | 2017-02-22 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for detecting sediment thickness of engineering foundation pile |
| CN110485402A (en) * | 2019-07-23 | 2019-11-22 | 长江岩土工程总公司（武汉） | The method for detecting Riverbed using varied angle inclined drill |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU684476A1 (en) * | 1977-04-01 | 1979-09-05 | Нижне-Волжский научно-исследовательский институт геологии и геофизики | Seismic survey method |
| SU817627A1 (en) * | 1979-06-22 | 1981-03-30 | Уральское Отделение Всесоюзногогосударственного Ордена Ленинаи Ордена Октябрьской Революциипроектного Института "Тепло-Электропроект" | Seismic survey method |
| CN202102120U (en) * | 2011-06-03 | 2012-01-04 | 中国水电顾问集团贵阳勘测设计研究院 | Seismic refracted wave exploration device for riverbed cross section |
-
2011
- 2011-06-03 CN CN201110149223.0A patent/CN102809757B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU684476A1 (en) * | 1977-04-01 | 1979-09-05 | Нижне-Волжский научно-исследовательский институт геологии и геофизики | Seismic survey method |
| SU817627A1 (en) * | 1979-06-22 | 1981-03-30 | Уральское Отделение Всесоюзногогосударственного Ордена Ленинаи Ордена Октябрьской Революциипроектного Института "Тепло-Электропроект" | Seismic survey method |
| CN202102120U (en) * | 2011-06-03 | 2012-01-04 | 中国水电顾问集团贵阳勘测设计研究院 | Seismic refracted wave exploration device for riverbed cross section |
Non-Patent Citations (2)
| Title |
|---|
| 曾国，崔德海，刘杰，李凯，: "地震折射波法和高密度电法在隧道勘察中的应用", 《物探与化探》, vol. 33, no. 5, 1 October 2009 (2009-10-01) * |
| 陈星，陈福: "浅层地震折射波法在探测河床覆盖层厚度中的应用", 《浙江水利科技》, no. 5, 1 May 2004 (2004-05-01) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091706A (en) * | 2013-02-19 | 2013-05-08 | 中国石油集团东方地球物理勘探有限责任公司 | Sludge settling pound earthquake exploration method |
| CN106442527A (en) * | 2016-08-31 | 2017-02-22 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for detecting sediment thickness of engineering foundation pile |
| CN110485402A (en) * | 2019-07-23 | 2019-11-22 | 长江岩土工程总公司（武汉） | The method for detecting Riverbed using varied angle inclined drill |
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| Publication number | Publication date |
|---|---|
| CN102809757B (en) | 2015-04-15 |
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Address after: 550081 No. 16 Xing Qian Road, Jinyang New District, Guizhou, Guiyang Applicant after: POWERCHINA GUIYANG ENGINEERING Corp.,Ltd. Address before: 550081 No. 16 Xing Qian Road, Jinyang New District, Guizhou, Guiyang Applicant before: HydroChina Guiyang Engineering Corp. Address after: 550081 No. 16 Xing Qian Road, Jinyang New District, Guizhou, Guiyang Applicant after: POWERCHINA GUIYANG ENGINEERING CORPORATION LIMITED Address before: 550081 No. 16 Xing Qian Road, Jinyang New District, Guizhou, Guiyang Applicant before: POWERCHINA GUIYANG ENGINEERING Corp.,Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: HYDROCHINA GUIYANG ENGINEERING CORPORATION, LTD. TO: CHINA POWER GROUP GUIYANG INVESTIGATION DESIGN + RESEARCH INSTITUTE CO., LTD. Free format text: CORRECT: APPLICANT; FROM: GUIYANG PROSPECTION + DESIGN INST, CHINA HYDRAULIC POWER CONSULTARY GROUPTO: HYDROCHINA GUIYANG ENGINEERING CORPORATION, LTD. |
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