fig1 shows a drill frame 1 , which is equipped with a carriage 2 and a sliding drill head 3 , wherein here the drill instrument 4 with rotating gear 70 is arranged on the upper end of the rig 5 . said drill frame 1 or rig 5 is installed on a ship caisson or stabilizing ship 6 , which is arranged on the ground 11 of the body of water by means of several legs 7 , 8 . said legs 7 , 8 can be retracted according to fig2 so that the entire ship caisson 6 can be easily transferred to a new working position . it may also comprise its own drives . the drill frame 1 or rig 5 can be brought from one position into another on the deck 9 by means of deck guides 16 , as is illustrated in fig2 . in this manner several bore holes 12 , 13 can be driven into the lake bottom or the bottom 11 of the body of water using one and the same drill frame 1 . the water level 10 is indicated , and the floating buoys 15 connected to the respective bore hole 12 , 13 by means of fuses 14 are also shown , so that the required connection of the individual bores that are equipped with explosives is possible . via the control station 17 on the ship caisson 6 all operations can be monitored easily . in the embodiment shown here the illustrated bore holes 12 , 13 are driven into the bottom of the lake 11 ′ initially with a roller bit 27 , which will be illustrated later , or also with a bit 26 . after having reached the lower position , the drill tool 25 is pulled out of the bore hole 12 , 13 via the drill rod arrangement 18 . then the bit 26 or the roller bit 27 is replaced with a ring cutter 28 , which now slides the same drill rod arrangement 18 or a separate drill rod arrangement into the bore hole 12 , 13 . this offers the possibility of flushing in the explosive through said drill rod arrangement 18 , with the respective igniter and also the fuse or line 14 . these are held on the lower end in the very bottom of the bore hole by their weight and possible deformation such that then the ring cutter 28 can be pulled out of the bore hole with the corresponding drill rod arrangement 18 . what remains then is the position in the area of the bore hole 12 denoted with 14 and 15 , i . e . the occupied bore hole 12 can be identified from the water surface easily and safely so that after the individual floating buoys 15 or fuses 14 are connected a plurality of blasts can be performed simultaneously . the above explanations clarify that a replacement of the drill tools 25 is required , which in the state of the art was possible only with the aid of separate auxiliary devices or by hand . fig1 indicates that a rod magazine 20 for accommodating the required drill tools 25 is allocated to the drill rod arrangement 18 or exploratory drill rod arrangement 19 or to the entire rig 5 . said rod magazine 20 with the lower rotary table 21 and the upper rotary table 22 is designed such that it can rotate around the center line 23 . the same is illustrated by the figures following later on . adding to fig1 , fig2 shows that an exploratory bore hole 12 ′ may also be initially driven because the devices required to do so can be kept available without difficulty . 37 denotes replacement bore rods , which in the above - mentioned rod magazine 20 can be kept available . fig3 shows the afore - mentioned rod magazine 20 in the working position , i . e . one of the platforms 36 , 38 has been pivoted in the drill axis 35 in order to fasten a drill tool 25 , which is not shown here , to the drill rod arrangement 18 using the shown clamping device 29 or clamping and crushing device 30 . swivel arm 40 is connected to the drill rig 5 by connection 103 . in detail in fig3 only replacement drill rods 37 , 37 ′, 37 ″ are positioned in the provided holder pots 42 . it is just as feasible that the above - mentioned drill tools 25 are arranged here , as fig4 shows . 34 denotes the grippers of the clamping device 29 or clamping and crushing device 30 , by means of which the respective drill rod 37 or also the drill tool 25 can be seized and fixed in order to detach or establish the connection . fig4 a through 4c shows three types of drill tools 25 , specifically one ring cutter 28 in fig4 a , one bit 26 in fig4 b and one roller bit 27 in fig4 c . all are equipped with an adapter 31 , which comprises at the top a thread 32 in the shape of a female part , which corresponds to the respective thread 33 of the drill rod 37 or drill rod arrangement 18 , which will be explained below . in this manner a simple and easy connection is possible . shown are additionally the gripping surfaces 41 , which each drill tool 25 comprises in order to enable secure seizing by the clamping and crushing device 30 . reference lines 76 extend through the longitudinal axis of the drill tools . fig3 illustrates the swivel arm 40 , which enables swiveling of the entire rod magazine 20 from the working position into the resting position . the corresponding illustration is shown in fig6 . in fig6 , apart from the platforms 36 or holder pots 42 for the replacement drill rods 37 , such platforms 38 for drill tools 25 are also provided . fig5 shows a drill rod 37 , which may involve a replacement drill rod 37 or another normal drill rod that is inserted in a drill string . already the term replacement drill rod shows that here an exchange is possible . these drill rods 37 are also equipped with gripping surfaces 39 . it is possible by means of said gripping surfaces 39 , 39 ′ to allow the clamping device 29 or the clamping and crushing device 30 to engage in order to establish the drill rod - drill tool connection 50 or the drill rod - drill rod connection 51 , or to dissolve it . the upper end of such a drill rod 37 comprising the thread 33 is referred to as the female piece 56 and the lower end as the male piece 57 , wherein both have the same thread 33 , with which the adapter 31 is also equipped . reference line 80 runs horizontally through the middle of drill rod 37 . in fig7 a rod magazine 20 is also shown in the working position and in the resting position . deviating from the illustration in fig6 , here one of the platforms 38 is equipped with an additional plate 47 . said additional plate 47 is arranged on the upper side 46 of the lower rotary table 21 such that it can pivot around the axis 48 . the holders 49 correspond to the holders on the lower rotary table , i . e . they are equipped with holder pots 42 as well . arranged therein are either bits 26 , roller bits 27 or ring cutters 28 , or pursuant to the embodiment shown in fig1 , 14 , and 15 only ring cutters 28 or roller bits 27 or bits 26 . the advantage of this embodiment is that here only one platform for these drill tools 25 is required so that the remaining platforms all remain available for replacement drill rods 37 . these holders have been denoted with 53 , 54 , wherein this figure also illustrates that the entire rod magazine 20 can pivot from the working position into the resting position or storage position and back . here the holders 53 , 54 have their centers at points around the circumference of reference circle 72 . reference lines 74 extend from the center of the lower rotary table 21 through the centers of the holders 53 , 54 . fig8 shows such a rod magazine 20 in a sectional view , wherein here also different rod arrangements in the form of the typical drill rod arrangement 18 or the exploratory drill rod arrangement 19 are shown , which can and / or should be connected to each other , respectively . the connection is established via the afore - mentioned clamping device 29 and clamping and crushing device 30 , wherein both are arranged in front of or allocated to a drill rod arrangement guide 43 or 44 , which here is used especially as a drill guide with respect to the drill rod arrangement guide 44 . reference lines 78 extend through the longitudinal axis of drill rod arrangements 18 , 19 . orthogonal reference line 82 extends through the drill guides 43 , 44 and clamping device 29 and clamping and crushing device 30 . reference lines 84 , 86 extend horizontally through the center of the clamping device 29 and clamping and crushing device 30 , respectively , showing their height with respect to the items on the rotary table and the drill rod arrangements 18 , 19 . reference line 88 runs horizontally through the center of the drill guide 44 . reference lines 90 , 92 , and 94 , 96 run horizontally through the top and bottom of the clamping device and clamping and crushing device 29 , 30 respectively , showing where the items on the rotary table and drill rod arrangements are gripped . the guides 43 , 44 and clamping and clamping and crushing devices 29 , 30 are supported by element 98 . fig9 a through 9f shows the operating cycle for the replacement of the drill tool 25 , here in the form of a roller bit 27 . first , as shown in fig9 a , the drill rod arrangement 18 is pulled out of the bore hole , wherein the drill rod - drill rod connection 51 and the drill rod - drill tool connection 50 are closed . upon insertion and fixation in the clamping and crushing device 29 , 30 , in the second illustration shown in fig9 b the drill rod - drill tool connection 50 has been interrupted . the drill rod arrangement 18 is then lifted , as shown in fig9 c , with the detached drill rod - drill tool connection 50 , in particular to the height of the lower rotary table 21 , which is now pivoted into the drill axis 35 so that the roller bit 27 can be placed thereon . then , as shown in fig9 d , the roller bit 27 or its adapter 31 is seized with the clamping device 29 , and the drill rod arrangement 18 is rotated away by means of the rotating drive of the drill instrument . the position is reflected in the second to the last illustration in fig9 e on the right . the last illustration , fig9 f , shows how the configuration swivels apart , i . e . the rotary table 21 is swiveled out of the drill axis so that now another drill tool 25 can be connected to the drill rod arrangement 18 . the female and male parts are denoted here as 56 and 57 . in fig8 additionally the female part of the drill rod arrangement 18 has been denoted with its own reference number , namely 58 , in order to illustrate that the drill rods by nature comprise a female piece 58 on the end opposite the male piece 57 . fig1 and 11 show the upper rotary plate 22 once in a view into the rotary table , i . e . from below , and once from above . it is clarified that the actual base plate 63 of the upper rotary table 22 is equipped with clamps 60 , 61 in order to be able to fix the upper ends of the replacement drill rods 37 . said base plate 63 pivots together with the entire rod magazine 20 , while the likewise illustrated support edge plate 64 remains fixed with its downward pointing support edge 65 . said support edge 65 therefore prevents the replacement drill rods 37 from falling out , however it can be opened if specific removal of the replacement drill rods 37 is necessary . for this a lateral recess 66 is provided in the support edge 65 , which in the stored state of the rod magazine 20 is closed by means of a segmental slide 67 . said segmental slide 67 is indirectly connected via a swivel axis holder 69 to the center axis 23 by means of a fly lever 68 so that during pivoting or rotation of the rod magazine 20 the segmental slide 67 is displaced along with it at the same time , thus opening the lateral recess 66 . the rounded parts of clamps 60 , 61 have their centers at points around the circumference of reference circle 100 . reference line 102 runs through the middle of swivel arm 40 and reference line 104 is perpendicular to this line . fig1 shows a center plate 62 , which serves as the upper fixation for the respective drill tools 25 , and is hence also equipped with corresponding clamps 60 ′, 61 ′. said center plate 62 also makes it possible to operate with a very short design of a rod magazine 20 , namely when the replacement drill rods 37 can be eliminated . these are indicated here , and it is also illustrated that the provided clamps 61 ′ can be involved and used for intermediate fixation and / or for optimal fastening and fixation of the replacement drill rods 37 in the rod magazine 20 . the pot - or pin - shaped holders 42 , 53 , 54 for the tools 25 and the replacement drill rods 37 are allocated to the lower rotary table 21 , wherein their fixation on the top 46 is illustrated here . a design of a rod magazine comprising only replacement drill tools 25 is reflected in fig1 , 14 , 15 ; further details in this respect have already been explained further above . all afore - mentioned features , including those revealed only in the drawings , are considered essential for the invention alone and in combination with one another .