Nzira yekudzivirira muGeophysics
Pendauluan
Nzira yekudzivirira zvakatipoteredza ndeimwe yenzira dzinonyanya kushandiswa pakuongorora nekugadzira mapu epasi penyika. Iyi nzira inoshandisa musiyano mukudzivirira zvakatipoteredza pakati pezvinhu zvakasiyana-siyana zvepasi penyika kuti iwane ruzivo nezve kuumbwa nemamiriro ezvinhu epasi penyika. Iyi tekinoroji yakaita mipiro mikuru mukutsvaga zvicherwa, hydrogeology, civil engineering, uye zvakatipoteredza.
Nheyo dzeKudzivirira Nzira
Nzira yekudzivirira simba inotsamira pamisimboti yemutemo weOhm ne electrodynamics, iyo inotaura kuti kufambiswa kwemagetsi kwechinhu kunoenderana nerudzi rwechinhu, porosity, uye hunyoro. Mumamiriro ezvinhu e geophysical, kudzivirira simba pasi pevhu kunogona kuva matombo, ivhu, uye pasi pevhu, chimwe nechimwe chine resistivity yakasiyana. Kudzivirira simba remagetsi kunoshandiswa nekupinza magetsi muvhu kuburikidza nema electrode maviri emagetsi uye kuyera simba remagetsi rinobuda pakati pema electrode maviri emagetsi.
Mhedzisiro yezviyero izvi inoshandiswa kuverenga resistivity chaiyo yekuumbwa kwe geological zvichibva pa equation:
\[ \rho_{a} = K \frac{V}{I} \]
di mana:
– \( \rho_{a} \) ndiko kusimba chaiko,
– \( K \) chinhu chejometri chinoenderana nekugadzirwa kwe electrode,
– \( V \) ndiyo voltage yakayerwa,
– \( I \) ndiyo simba remagetsi rinoshandiswa.
Maitiro Ekuyera Kuramba Kushanda
Nzira yekudzivirira inogona kuitwa uchishandisa magadzirirwo akasiyana-siyana e electrode, zvichienderana nezvinodiwa neongororo. Mamwe emagadzirirwo anonyanya kushandiswa anosanganisira:
1. Kurongeka kweWenner: Maerekitirodhi mana akaiswa padaro rakaenzana pamutsetse wakatwasuka. Izvi zvinopa chiyero chakanaka pakati pekunzwa uye kudzika kwekupinda.
2. Kurongeka kweSchlumberger: Electrode iripo inoiswa kure neelectrode inogona kushandiswa, zvichiita kuti mifananidzo yakadzama ikwanise kutorwa isina kugadziriswa zvakanyanya.
3. Kugadziriswa kweDipole-dipole: Mapeya maviri emaelectrode anoshandiswa, rimwe seelectrode yemagetsi uye rimwe seelectrode inogona kushandiswa. Kugadziriswa uku kunonyanya kunzwisiswa nekusiyana kwemativi ekudzivirira.
4. Magadzirirwo ePole-dipole nePole-pole: Electrode imwe chete inoiswa kure zvikuru nenzvimbo yekuferefeta, zvekuti inoonekwa seisina magumo, yese iri padivi uye yakatwasuka.
Dudziro yeData
Dudziro yedata resistivity inowanzoitwa uchishandisa nzira dze inversion, umo modhi yekutanga ye resistivity yePasi inogadziriswa kakawanda kuderedza kusawirirana pakati pekucherechedza ne modhi ye computational. Zvishandiso zvakasiyana-siyana zve software zvakagadzirwa nechinangwa ichi, zvichishandisa matekiniki enhamba akadai se finite element method uye direct integration methods.
Ruzivo rwekusimba kwemvura runoshandurwa kuita mamepu uye maprofayiro emhando ye contour anoratidza kusiyana kwesimba remvura. Zvivakwa zve geological zvakaita senzvimbo dzakatyoka, aquifer layers, uye mineral deposits zvinogona kuzivikanwa kuburikidza nedudziro iyi.
Kushandiswa kweNzira yeKuramba
1. Kuongorora Zvicherwa: Nzira yekudzivirira kushanduka kwemvura yakavimbika zvikuru pakuona macircuit emvura inopisa uye nzvimbo dzine zvicherwa.
2. Kuongororwa kwemvura: Iyi nzira inoshandiswa pakugadzira mapu emvura, kutsvaga manyuko emvura yepasi, uye kuona nzvimbo dzinopinda mvura.
3. Uinjiniya hweZvekuvaka: Ongororo dzekudzivirira kushanduka kwevhu dzinopa ruzivo rwakakosha nezvekugadzikana kwevhu, nzvimbo yenzira dzinogona kudonha, kana kuti dzekuongorora nheyo dzekuvaka.
4. Zvakatipoteredza: Kuongororwa kwetsvina iri muvhu nemumvura yepasi pamwe nekuongorora marara kunogona kuitwa uchishandisa nzira yekudzivirira kusvibiswa.
5. Kuchera Matongo: Nzira iyi inogona kushandiswa kuona zvinhu zvepasi pevhu pasina chikonzero chekuchera matongo makuru.
Zvakanakira uye Zvisina Kukwana
Zvakawandisa:
1. Haisi inoparadza: Nzira iyi haikuvadzi chimiro che geological kana nharaunda yepamusoro.
2. Mashandisirwo Akasiyana-siyana: Inogona kushandiswa muzvikamu zvakasiyana-siyana, zvakaita sekutsvaga zvicherwa, hydrogeology, uye mainjiniya ehurumende.
3. Kupinda Mukati: Kukwanisa kusvika pakadzika zvikuru ne electrode configuration yakakodzera.
Miganhu:
1. Mamiriro Ezvinhu Pamusoro: Kusiyana kwenzvimbo, zvakaita semiti nezvivakwa zvevanhu, kunogona kukanganisa mhedzisiro yeongororo.
2. Kududzira Data Rakaoma: Data reresistivity rinowanzoda ongororo yakadzama uye software yakasarudzika yekududzira.
3. Miganhu Yekugadzirisa Zvakamira: Hunhu hwemagadzirirwo eelectrode hunogona kuganhurira kugadzirisa kwakamira kwemhedzisiro.
Chidzidzo Chenyaya: Maitiro Ekudzivirira Kusashanda Munzvimbo DzekuIndonesia
Mumwe muenzaniso wekushandiswa kwenzira dzekudzivirira matombo muIndonesia ndeyekutsvaga munzvimbo yeMeratus Mountains kuSouth Kalimantan. Nzvimbo iyi ine zvicherwa zvakawanda uye maumbirwo akaomarara ejeologi. Ongororo dzekudzivirira matombo dzinoshandiswa kuona nzvimbo dzinogona kunge dzine zvicherwa uye kunzwisisa zvivakwa zvejeologi pasi pevhu pasina chikonzero chekuchera kukuru kana kuchera zvinodhura.
Chimiro cheSchlumberger chakasarudzwa kuti chishandiswe pakudzidza nekuti chinopa ruzivo rwakakwana rwekudzika kwezvicherwa zvinogona kuwanikwa. Zvakabuda muongororo iyi zvakaratidza kusawirirana kwakawanda kwe resistivity, zvichiratidza kuti kune zvicherwa zvakakosha zvakaita segoridhe neuranium. Kushandiswa kwenzira iyi ye resistivity kunopa nzvimbo yakanaka yekutanga kutsvaga, zvichiteverwa nekusimbisa nzvimbo dzakakosha dze anomaly.
Mhedziso
Nzira yekudzivirira zvakatipoteredza mu geophysics chishandiso chakakosha uye chinoshandisika pakuongorora nekunzwisisa chimiro chepasi pevhu. Nekusiyana kwayo kwemagadzirirwo nemashandisirwo ayo, nzira iyi inopa ruzivo rwakakosha munzvimbo dzakasiyana-siyana kubva pakutsvaga zvicherwa kusvika pakutarisa zvakatipoteredza. Kunyange zvazvo ine zvimwe zvipingamupinyi, kugona kwenzira yekudzivirira zvakatipoteredza kupa data risingaparadze uye kushanda kwayo zvakanaka kunoita kuti ive sarudzo inokosha kumapurojekiti emazuva ano e geophysics. Kushandiswa kwenzira iyi mune ramangwana kunogona kuramba kuchiwedzera nekufambira mberi kwetekinoroji uye kudiwa kwekutsvaga kwakasimba.
