Rubuta ci gaba don wannan sakin layi - Farfesa Seed ya wallafa kusan takardu 300 da rahotanni kan batutuwa daban-daban kan Injiniyan Geotechnical. Binciken sa na farko game da hulɗar ƙasa-ƙasa, dunƙulewar ƙasa da shimfidar hanya sun zama tushen kimiyya don ƙirar zamani. A cikin 1960s ya kafa sabon yanki na bincike, injiniyan girgizar kasa, kuma ana ɗaukarsa a matsayin wanda ya kafa wannan yanki. Ayyukansa na farko sun haɗa da haɓaka madaidaiciyar hanyar layi (SHAKE) don nazarin amsawar rukunin girgizar ƙasa, nazarin hulɗar tsarin ƙasa, kimantawa da rage haɓakar ƙasa, da sauransu. Ya bincika manyan bala'o'i da yawa, kamar girgizar ƙasa ta Alaska ta 1964, girgizar ƙasa ta San Fernando ta 1971
a California, fashewar madatsar ruwa ta Teton a shekara ta 1976, ambaliyar ruwa a tashar jiragen ruwa ta Nice a Faransa a shekara ta 1979, da kuma girgizar ƙasa a Birnin Mexico a shekara ta 1985. Ya yi aiki a matsayin mai ba da shawara a kan ɗaruruwan ayyukan a duk faɗin duniya, gami da fiye da manyan madatsun ruwa 100, fiye da tashoshin nukiliya 20, da manyan gine-gine da wuraren sufuri marasa adadi. Binciken da ya yi, wanda ya dogara da ƙa'idodin kimiyya masu kyau, ya sa aka sake duba ra'ayoyi da kuma hanyoyin da ake amfani da su wajen tsara girgizar ƙasa, da kuma sake duba ƙa'idodin ayyuka, hanyoyin tsarawa, da kuma dokoki a dukan duniya.