A　performance　study　is　considered　to　be　reliable　method　for　comprehending　deformations　associated　with　deep　excavation.　To　gain　insight　into　the　laws　governing　ground　deformations　that　are　associated　with　deep　excavation,　details　of　88　cases　were　collected　and　analyzed　in　Beijing.　The　results　were　compared　with　worldwide　case　histories.　Field　data　were　selected　to　survey　the　ground　behavior　and　to　examine　the　correlation　between　deformation　and　excavation.　The　position　and　magnitude　of　the　final　ground　deformation　(δv),　as　well　as　the　maximum　deformation　(δvm),　the　correlations　between　δvm　and　excavation　depth　(H),　the　length–width　ratio,　embedded　depth　ratio　(EDR),　and　the　stiffness　of　the　support　system,　were　assessed.　The　clear　evolution　process,　influence　zone,　and　final　deformation　pattern　are　illustrated.　Our　study　revealed　the　following:　(1)　the　groove　pattern　is　detected　in　the　final　deformation　of　the　ground　surface,　δvm　occurred　when　positioned　approximately　0.42H~0.62H　off　the　wall,　when　the　1st~2nd　supports　on　the　bottom　were　removed;　(2)　δvm　increases　with　an　increase　in　H,　and　it　ranges　from　0.04%　to　0.12%　when　H　has　an　average　value　of　approximately　0.089%;　(3)　EDR　has　an　observable　effect　on　reducing　the　δvm,　as　there　a　slight　impact　was　observed　until　the　ratios　exceeded　0.4;　(4)　the　deformation　value　of　the　75%　monitoring　points　ranged　from　−25　mm　to　0　mm;　(5)　excavation　could　cause　minor　upheaval　in　some　areas,　but　the　upheaval　reduces　with　increasing　levels　of　excavation,　so　both　deformation　magnitude　and　the　number　of　points　are　low;　(6)　deformation　exhibits　clear　temporal–spatial　characteristics,　the　settlement　rate　gradually　increased　over　time,　especially　after　drainage　started　or　consolidation　appeared,　and　when　the　internal　structure　is　completed,　δvm　decreases　with　the　rise　in　support　system　stiffness,　ranging　from　7000　to　11,000,　and　deformation　becomes　stable;　and　(7)　transverse　sections　near　the　excavation　center　experienced　larger　deformations　than　others　and　the　smallest　deformations　were　near　the　corners,　a　significant　increase　occurs　with　the　removal　of　the　lowest　1–2　struts,　particularly　on　the　long　side　where　∆δv　reaches　2.8　±　0.75　mm,　and　the　influence　zones　extend　from　approximately　2.5H　to　3H　beyond　the　excavated　face.　These　findings　have　valuable　implications　for　designing　and　constructing　similar　projects　in　Beijing　and　other　regions,　as　they　can　help　prevent　accidents　and　minimize　resource　wastage.　©　2023　by　the　authors.