SU1357504A3 - Foundation of structure - Google Patents

Abstract

The invention relates to the construction can be used as support devices for high-rise buildings, structures and machines. The aim of the invention is to improve the accuracy of maintaining the design position of the condition 5) for subsidence (heaving) of the soil. The foundation of the structure contains a reference element associated with the non-displaceable soil area, and a spring-loaded energy accumulator providing application of the horizontal expansion force to the bearing wedge elements, and the stop adaptation is made, in the form of a transmission wedge mechanism, the input link of which is associated with the reference element, while limiting the transverse offset wedge elements. 2 ep f-ly, 17 ill. her SO eaten s

Description

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The invention relates to the construction, in particular to the construction of foundations of structures erected in difficult conditions of dynamic and seismic effects, and can be used as support devices for high-rise buildings, structures and machines.

The purpose of the invention is to improve the accuracy of maintaining the design position of the structure during subsidence (heaving of the soil.

FIG. 1 shows a stabilizer with a carrier in the form of a foot of wedges, a frame in the form of a cartridge and a one-sided deformation corrector (wasp

doc base, longitudinal section;

 5 copiers 14 tja chuck 10 with a downward slope. p is the angle of inclination of peers 14, to which with the help of drive springs 15, bars 16 and jumpers 17 at the vertices 6 through the holes 18

in fig. 2 is a section A-A in FIG. 1; in fig. 3 - node I in FIG. 1 (with constituent parts of the buckling corrector); 20 wedges 2 and 3 prizkaty reciprocal of FIG. 4 - stabilizer with carrier rye 19 on plates 20. Jumpers 21 in part in the form of a foot of wedges, with a bench mark of the ends 7 of wedges 2 and 3 are made with a. the form of a cartridge and two-sided correction gaps 22 and 23 relative to the bar of the base deformations, a longitudinal section; in fig. 5 is a view B in FIG. four; in fig. 6 - section BB on. FIG. four; FIG. 7 shows a stabilizer with a part in the form of composite legs 16 and plates 20. A lining 25 is fitted on the centering protrusions 24 on the base 8, and flanges 28 and 29 of the bars 16 and plates 20 are connected with grooves 26 and 27. On the upper wedge 2, the tip 30 is installed, which is connected with the centering protrusions 31 with grooves - 32 on the side of the piston. 10. On the top of the head 30, in turn, is installed with the help of compensating stop screws 33 of the nadoporn design 34 with the hatch 35.

ki, a frame in the form of a mandrel, and a one-sided deformation corrector (sediment) of the base, a longitudinal slit j. FIG. 8 - section GGD 7; in fig. 9 is a section DD in FIG. 7; in fig. 10 - section Be-7 in FIG. 7 | figure 11 - node II in FIG. 7 (with components of the buckling corrector) j in FIG. 12 - stabilizer with a bearing part in the form of a composite screw stand, a frame in the form of a mandrel, and two

35

The load from the overhead construction 34 is transmitted through screws 33, ogolo

with a horizontal corrector of deformations of the base 40 wok 30, wedges 2 and 3, lining 25 and longitudinal section; in fig. 13 - and the sole 8 on the base 9. The LC section in FIG. 12; 14 shows a building on supporting stabilizers connected by rappers with a slab with their own, general view; in fig. 15 - building on supporting stabilizers, connected by axles, common vi / :, | in fig. .16 - the abutment of the arch bridge of the KA supporting and thrust stabilizers, connected by their reference points with their own, general view; in Fig. 17, a machine on supporting stabilizers connected by rappers with loosely laid pl1 is a general view.

The stabilizer - with a carrier in the form of a foot of wedges, a carrier in the form of a cartridge and a one-sided base deformation corrector (Fig. 1-3) includes a housing 1 and a carrier in viPri draft of the base 9, the housing 1 is also lowered and with it

45 slides down along the slope of the copiers 14, the stops 19, which while sliding apart with the springs 15 before recovering to the beat with the copiers 14 with simultaneous movement of the wedges 2 and 3, one side of the adjacent working faces 5, which increase the height of the foot .4 and sediment correction. The stabilized level of the head 30 and above the supporting structure 34 ensures that the height increases. Equals the bottom of the base draft 9 by selecting the number of wedges 2 and 3 depending on the values of and%;

de wedges 2 and 3, stacked in the foot 4 along the working faces 5 in the order of alternation of the vertices 6 and the ends 7. The angle of inclination of the working faces 5. The housing 1 is mounted with the base 8 on the base 9 in the form of a concrete or compacted dirt pad. The stabilizer also contains a bench mark in the form of a cartridge 10 attached to the base system in the form of a plate 11, loosely laid on the ground 12 or uniting the piles 13 embedded in the ground 12. In addition, the stabilizer contains an offset of the base 9 in the form of longitudinally inclined

copiers 14 tja chuck 10 with a downward slope. p is the angle of inclination of peers 14, to which with the help of drive springs 15, bars 16 and jumpers 17 at the vertices 6 through the holes 18

wedges 2 and 3 prizkaty reciprocal stops 19 on the plates 20. Jumpers 21 at the ends 7 wedges 2 and 3 are made with gaps 22 and 23 relative to the bars-

16 and plates 20. Lining 25 is seated on the centering protrusions 24 on the bottom 8, and flanges 28 and 29 of the bars 16 and plates 20 are connected to the grooves 26 and 27. A cap 30 is connected to the upper wedge 2 connected with grooves 31 by the centering lugs - 32 on the pat- tron, the zone 10. On the tip 30, in turn, it is installed with the help of compensating stop screws 33 of the nadopna of the structure 34 with the hatch 35.

35

Stabilizer (Fig. 1-3) works as follows.

The load from the supra-support structure 34 is transmitted through the screws 33, the rim 30, the wedges 2 and 3, the lining 25 and the sole 8 to the base 9.

40 wok 30, wedges 2 and 3, lining 25 and sole 8 on the base 9.

During the draft of the base 9, the housing 1 also lowers and together with it slides down along the ramp of the copiers 14, the stops 19, which at the same time move apart with the springs 15 until contact with the copiers 14 is retracted while simultaneously moving the wedges 2 and 3 one relative 50 to the other side edges 5, which causes an increase in the height of the foot .4 and the adjustment of precipitation. The stabilized level of the head 30 and above the supporting structure 34 is ensured by the fact that the height increases. The stops 4 of the bottom of the bottom 9 by choosing the number of wedges 2 and 3 depending on the values of and%,

31357504 4

ci is chosen within the three-side angle to the sides of adjacent slopes on adjacent working faces x 5 or barrel edges 5, which leads to values exceeding it. / 3 reduction in the height of the foot 38 and it is advisable to designate equal to the angle of excitation of the level of the tip 46 when released on the adjacent grinding surfaces.

copiers 14 and lugs 19, which provide the Stabilizer with the carrier part of the unloading of the rapper (patron of the wedges, reper of 10) and the base system (plate 11 and cartridge and two-sided pile corrector 13) from the vertical components base deformations (FIGS. 4-6) of the NL1 as with static loads, holds the body 47 and the carrier part in and out of the table, wedges 2 and 3 laid in cost several times this angle three, and wedges 36 and 37, laid in a not, which provides an increase in rapid stop 38. Case 47 is set The approach of the correction of the deformed 58 to the base 9. The stabilizers of the base 9 due to the load of the core also contains a bench mark in the form of a patropus 1 vertical, downward 49, attached to the basic components of forces in the form of a slab 11 and piles 13. Copiers and stops 19. The benchmark is unloaded, the stabilizer contains bilaterally component forces, a circumferential corrector of deformations (precipitated by a symmetrical installation and blowing) of the base 9 in the form of stops 19 sloping copiers 14 and 40

 The required force from the spring of the collars 50 and 51 with ramps, nack 15 is determined depending on the sent down and up. The clips 50 loads from the support structure 34, 25 and 51 are connected to the chuck 49 through the values ot and | i, the number of pairs of friction pairs of ratchets 52 and 53 with teeth 54 of equal and friction coefficients per wedge x 2, of the first step, with inclined working - and 3, bars x 16 and plates 20, as well as dogs 55 and bend dogs — from the required values of the speed of the anchors 56 of variable pitch for plastering the deformations of the base 9. for copiers 14 and 40 with the help of

With the help of compensation axial drive springs 15, plates 58 and re-bolts 33 it is performed by leveling the tabs 17 and 43 through the holes 18 and 44 of the supra-support structure 34 when mounting wedges 2, 3, 36 and 37 are pressed upwards. and 60. On

Inspection protrusions 24 on the sole 48 and maintenance of the stabilizer assemblies are made through the hatch 35. Lining 25 is seated. Between the stop and the stabilizer, the gasket 61 can also be installed with an alignment protrusion axle with centering projections 62 connected 9. grooves 32 on the chuck 49.

In this case, the constituent parts of stapop1pity 58 and 60 are connected by flanges 28

bilizator acquire the following form: and 29 with grooves 26 and 27 on the gasket 61

wedges 36 and 37 are laid in the foot 38; and the sole 48. The connection of the plates 58

on the cartridge 39 copiers 40 of soy 59 are made;

slope upward, with which-shanks 63 and grooves 64. On the top

The contacts 41 are connected to the stops 41 on the pl-wedge 2, the head 65 is installed, connectors 42; lintels 43 at the ends 7, formed by projections 31 with slots 32

holes 44 wedges 36 and 37 zazha-on chuck 49. On the tip 65, in its

you are between bars 16 and 42j-plates, installed with the help of vinperemschki 45 at vertices 6, 33 nadvorny structures 34 s

with gaps 22 and 23 relative to the parallel bars 35.

EV 16 and plates 42; on the upper wedge 2 Stabilizer (Fig. 4-6) works

set tip 46.the following way.

A stabilizer with a buckle corrector. The load from an overhead construction works in the same way as stabilization 34 is transmitted through screws 33,

a torus with a corrector of 1 draft with that only dtsogolovok 65, wedges 2 and 3, a protraction, that when buckling the base 61, wedges 36 and 37, lining 25

The vanilla 9 plate 42 is shifted up and up to the base 8 on the base 9. along the ramp of the copiers 40, and the wedge 36 when the base 9 sinks together

and 37 move one relative body 47 stops 19 and 41 are displaced

513

on the plates 59 and 60. The stops 41 thus act on the copiers 40 (buckling corrections) and push them down With the yoke 50 on the cartridge 49 due to slipping of the ratchet 52 in this direction. The mutual position of the coders 40 and the stops 41 does not change, with the result that the buckling corrector

It is included in the work, the stops are 77

the wedges 36 and 37 and the height of the foot 38. At the same time, the copiers 14 are held on the chuck 49 by the ratchet 52 and the lugs 19 are torn off from the copiers 14 when the offset corrector triggers, in which the plates 59 are moved apart by springs 15, and the wedges 2 and 3 are moved to the sides of the ascents of the adjacent working faces 5, which are the conditions 78, are spring-loaded with drive springs 79 located between them, and the strips 80 and 81. The stops 77 and 78 and the strips 80 and 81 are fixed in alternating order with the sleeves 82 and 83 assembled on a mutual landing on the mandrel 73. On the sleeves 82 and 83 vtol - neny Yebra 84 and 85 by slots 86 and 87 on the sleeves 67 and 68. With the slots 88 and 89

The increase in the height of the foot 4 and sta-2o on the protrusions 90 and 91 on the sole 72 makes it possible to combine the level 65 of the head with the draft.

The equal pitch of the teeth 54 and the variable pitch of the dogs 55, as well as the inclination of the working sides of the teeth 54, ensure a constant engagement of a part of the dogs 55 with a part of the teeth 54 at any positions of the ratchets 52.

When exuding the base 9, the opposite occurs. Offset corrector is not included due to joint displacement of the stops 19 and copiers 14 with slipping of the clip 50 along the ratchet 52 and preservation of the height of the foot 4. But the buckling corrector triggers due to the separation of the stops 41 from the copiers 40 on the sleeve 51 held on the cartridge 49 ratchet 53, and thus moving the plates 60 while simultaneously moving the wedges 36 and 37 to the sides of the slopes of the adjacent working faces, which causes a decrease in the height of the foot 38 and a stabilization of the level of the head 65 when bulging.

The stabilizer with a bearing part in the form of a composite screw rack, a frame in the form of a mandrel and a one-way base deformation corrector (Fig. 7-11) contains a housing 66 and 30

split flanges 92 and 93 of bushings 82 and 83 are unified. A cap 94 is installed on the upper sleeve 67, connected by a key 95 with a groove 96 on the body 66. 25 On the cap 94, in turn, is installed with screws 33 of the nadopna design 34 with a hatch 97.

The stabilizer (Fig. 7-11) works as follows.

The load from the overhead structure 34 is transmitted through screws 33, tip 94, sleeves 67 and 68, and base 72 to base 9.

When the base 9 sinks, the housing 66 also lowers and with it the downsides 77 and 78 move down along the slopes of the copiers 75 and 76, which at the same time turn by the springs 79 together with the sleeves 82 and. 83 in different directions until contact with copiers 75 and 76 is restored. From sleeves 82 and 83, rotation is transmitted through ribs 84 and 85 and grooves 86 and 87 of sleeves 67 and 68, which thereby unscrew one from the other, which causes an increase in the height of stand 71 and sediment correction. The stabilized level of the head 94 and of the support structure 34 is provided by the selection

35

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45

a substantial part in the form of threaded sleeves 67 JQ number of sleeves 67 and 68, depending on, and 68 with right 69 and left 70 threads from the values of oi and

In the case of a stabilizer with a buckling corrector of the base 9, its component parts take the following form: sleeves 67 and 68 are made assembled in a rack 98 with an upper left thread 70; in the initial position, the sleeves 67 and 68 are unscrewed from one another to the minimum thread overlap

Bami assembled in rack 71 in the order of alternation of threads, starting with the right-hand thread 69 from the top, oi - the angle of inclination of the threads .69 and 70. The body 66 is mounted with the base 72 on the base 9, In the initial position, the sleeves 67 and 68 are screwed into one another . The stabilizer also contains a bench mark in the type of mandrel 73, attached to the base system in the form of an axial pile 74, embedded in the ground 12. In addition, the stabilizer contains a corrector precipitating the base 9 in the form of longitudinally inclined copiers 75 and 76 on the mandrel 73 with a ramp, downward. ji -, the tilt angle of the copiers 75 and 76, with which 78 are spring-loaded with drive springs 79 located between them and the strips 80 and 81. The stops 77 and 78 and the strips 80 and 81 are fixed in alternating order with the sleeves 82 and 83 , assembled on a mutual landing on the mandrel 73. On the sleeves 82 and 83, the ribs 84 and 85 under the grooves 86 and 87 on the sleeves 67 and 68 are open. With the grooves 88 and 89

0

split flanges 92 and 93 of bushings 82 and 83 are unified. A cap 94 is connected to the upper sleeve 67, which is connected by a key 95 with a groove 96 on the body 66. 5 On the cap 94, in turn, is installed with screws 33 of the nadopna design 34 with a hatch 97.

The stabilizer (Fig. 7-11) works as follows.

The load from the overhead structure 34 is transmitted through screws 33, tip 94, sleeves 67 and 68, and base 72 to base 9.

When the base 9 sinks, the housing 66 also lowers and with it the downsides 77 and 78 move down along the slopes of the copiers 75 and 76, which at the same time turn by the springs 79 together with the sleeves 82 and. 83 in different directions until contact with copiers 75 and 76 is restored. From sleeves 82 and 83, rotation is transmitted through ribs 84 and 85 and grooves 86 and 87 of sleeves 67 and 68, which thereby unscrew one from the other, which causes an increase in the height of stand 71 and sediment correction. The stabilized level of the head 94 and of the support structure 34 is provided by the selection

five

five

the number of sleeves 67 and 68, depending on the value of oi and

In the case of a stabilizer with a buckling corrector of the base 9, its component parts take the following form: sleeves 67 and 68 are made assembled in a rack 98 with an upper left thread 70; in the initial position, the sleeves 67 and 68 are unscrewed from one another to the minimum thread overlap

69 and 70; mandrel 99 is provided with copiers 100 and 101 with a slope directed upwards, with which stops 102 and 103 are associated; on the sleeves 104 and 105 made the ribs 106 and 107; an upper cap 10 is installed on the upper sleeve 67

A stabilizer with a buckle corrector works similarly to a stabilizer with a draft corrector with the only difference that when the base 9 is buckled, the sleeves 104 and 105 with the stops 102 and 103 are displaced upward along the slopes of the copiers 100 and 101 while simultaneously turning the sleeves 104 and 105, transmitting with sleeves 67 and 68, which thereby screwed one into the other, which causes a reduction in the height of the post 98 and the stabilization of the level of the head 108 when buckling.

A stabilizer with a carrier part in the form of a composite screw stand, a turntable in the form of a mandrel, and a two-sided base deformation corrector (Fig. 12 and 13) comprise a housing 109 and a carrier part in the form of helical sleeves 67 and 68 assembled in stands 71 and. 98. The housing 109 is installed with the base 110 on the base 9. The stabilizer also contains a frame in the form of a mandrel 111 attached to the base system in the form of an axial pile 74. In addition, the stabilizer contains a double-sided deformation corrector (draft and bulging) of the base 9 in the form of tubes 112 and 113 with copiers 75 and 76 with a downward slope, and copiers 100. and 101 with a downward slope. Tubes 112 and 113 are connected to mandrel 111 through ratchets 114 and 115 with equal pitch teeth 116 and 117 with inclined working sides 118 and 119 and bending dogs 120 and 121 on shells 122 and 123. Copiers 75 and 76, 100. and 101 contact associated with the stops 77 and 78, 124 and 125 by means of drive springs 79. The stops 77 and 78 and the bars 80 and 81 are fixed in alternate order with the sleeves 126 and 127. The stops 124 and 125 and the bars 128 and 129 are fixed in alternating With sleeves 104 and 105, on sleeves 126 and 127, 104 and 105, fins 130 and 131, 106 and 107 are made under grooves 86 and 87 on sleeves 67 and 68. Sleeves 104 and 105, 126 and 127 are split Lanza 92 and 93 with the grooves 88 and 89 on the projections 90 and 91, at the base 110, the stops 124 and 125 a plan and

20

25

g.

10 15. 357504-8

kakh 128 and 129. The gasket 132 between the uprights 71 and 98 and the tip on the top and the sleeve 67 of the stand 71 are connected with the keys 95 on the housing 109. On the tip 133 it is installed with screws

33 oversized construction 34 with hatch 97.

The stabilizer (Fig. 12 and 13) works as follows.

Overhead load

34 is transmitted through screws 33, tip 133, rack 71, gasket 132, rack 98, and sole 110 to the base.

When the base 9 is seated together with the housing 109, the sleeves 126 and 127, 104 and 105 and the stops 124 and 125, 77 and 78 fixed to them are displaced. The stops 124 and 125 act on the copiers 100 and 101 (buckling corrections) and push them down along with the tube 113 on the mandrel 111 due to slipping of the ratchet 115 in this direction. The mutual position of the copiers 100 and 101 and the lugs 124 and 125 does not change, as a result, the buckling corrector is not included in the work, keeping the position of the sleeves 67 and 68 in the rack 98 and the height of the rack 98. At the same time, when moving downward, the copiers 75 and 76 (slump corrections) with tube 112 are held on mandrel 111 with ratchet 114 and stops 77 and 78 are torn off from copiers 75 and 76, with triggering corrector triggered, at which stops 77 and 78, sleeves 104 and 105, and sleeves 67 and 68 in rack 71 turn in different directions with unscrewing sleeves 67 and 68 in rack 71 one of the other, which caused AET increased height .stoyki tip 71 and the stabilizing layer 133 with the sludge.

When the base 9 is buckled, the reverse occurs.

The offset corrector is not included due to the joint displacement of the stops 77 and 78 with the copiers 75 and 76 with the tube 112 slipping along the ratchet 114 and maintaining the height of the stand 7 1. The buckling corrector is triggered by removing the stops 124 and 125 from the copiers 100 and 101 on the tube 113 held on the mandrel 111 gg by the ratchet 115, and turning

thirty

35

40

50

stops 124 and 125, sleeves 126 and 127 and sleeves 67 and 68 in rack 98 in different directions with screwing in sleeves 67 and 68 in rack 98 into each other, which causes a reduction in the height of the rack 98 and stabilization of the tip level 133 when bulging.

The proposed designs of stabilizers can be used both in supporting and thrust devices of buildings, structures and machines.

From 1, the thrust stabilizers consist in their horizontal arrangement and the implementation of the basic system, which can have the following types: horizontal axial pile 74, connected to the end face of the mandrel 73, 99 or 111 (similar to Fig. 7 and 12); vertical perpendicular to the shaft 134, Connected to the side of the cartridge 10, 39 or 49 (Fig. 16); plate 11, laid vertically lateral edges -. into soil 12 or secured with sheet piles and connected to chuck 10, 39, or 49 (similar to FIGS. 1 and 4).

Forms of the component parts of the stabilizers can vary, for example stabilizers with wedges 2 and 3, 36 and 37 can also be performed with a frame in the form of mandrels 73, 99 and 111 and the base system in the form of an axial pile 74, and stabilizers with threaded sleeves 67 and 68 can be performed with a frame in the form of cartridges 10, 39 and 49 and the base system in the form of a plate 11, loosely laid on the ground 12 or a uniting pile 13, etc. The stabilizer housings 1.47, 66, and 109 may contain flanges 135 (Fig. 14), 136 (Fig. 15 and 17) or 137 (Fig. 16 and 17) in the intermediate, upper or lower position.

Installation of buildings, structures and machines on stabilizers can be performed as follows.

The building 138 with the underground part 139 in the form of a reinforced concrete box section (Fig. 14) is installed in a pit 140 with walls 141 on stabilizers 142, embedded in the base 9 and attached by cartridges 49 to the base system in the form of a plate 11 and piles 13.

The building 143 of the baseless type (Fig. 15) is made with a grillage 144, which unites the caps 145 of the rack-type stabilizers 146, embedded in the base 9 and attached by mandrels 111 to the pile m 74.

The arch 147 of the arched bridge (FIG. 16) is mounted on the supporting stabilizers.

146, embedded in the joint 9 and attached by mandrels 111 to the base system in the form of piles 74. On the side of the stationary 147, a supporting wall 148 and stop stabilizers 142 connected by cartridges 49 to the base system in the form of vertical perpendicular piles 134 are installed.

The machine 149 (FIG. 17) is mounted by frame 150 on stabilizers 142, placed in drop wells 151 and attached by cartridges 49 to a side system in the form of a plate 11, freely laid on the base 9.

 f

the formula of the invention, 1, the Foundation, which includes the element resting on the base soil through the foundation pad,

made of mutually supported bearing wedge elements, and a thrust device limiting the displacement of wedge elements, characterized in that

in order to improve the accuracy of maintaining the design position during soil subsidence (heaving), the foundation additionally contains a reference element associated with an unmovable area

soil, and spring battery energy, providing the application of horizontal spacer force to the bearing wedge, elements, and the thrust device is made in the form of a transmission wedge mechanism, the input link which is associated with the reference element, and the output limits the lateral displacement of the wedge elements.

2. A foundation according to claim 1, characterized in that the supporting wedge elements are made in the form of elements of a screw joint. 3. The foundation of PP. 1 and 2, characterized in that it additionally contains a distribution mechanism, a base pillow includes two, each with its own stop fitting, groups of supporting wedge elements, one of which increases and the other decreases the height of the pillow when moving the wedge elements, the distribution mechanism is in the form of associated with the reference elements of the staff with two toothed sections, the teeth of which are directed oppositely, and two groups of dogs, each connected to the input link of the corresponding stop device

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Compiled by V.Aksenov. Editor A. Kozoriz Tehred A. Kravchuk Proofreader A. Obruchar

. Order 5974/27 Circulation 607 Subscription

VNIIGSh of the USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d, 4/5

Production and printing company, Uzhgorod, Projecto st., 4

Claims (3)

Claim, 1. The foundation of the structure, including an element resting on the ground of the base through a foundation cushion made of load-bearing wedge elements mounted on top of one another, and a thrust device limiting the displacement of the wedge elements, characterized in that, in order to increase the accuracy of maintaining the design position when subsidence (heaving) of the soil, the foundation additionally contains a reference element associated with an unmovable area of the soil, and a spring energy accumulator, providing the application of a horizontal spacer force to the supporting wedge, elements, and thrust device is designed as a wedge gear mechanism input member is associated with a reference element and an output limiting lateral displacement of wedge elements. 2. The foundation according to claim 1, characterized in that the bearing wedge elements are made in the form of screw connection elements. 3. The foundation according to paragraphs. 1 and 2, characterized in that it further comprises a distribution mechanism, the base pillow includes two, each with its own stopping device, groups of supporting wedge elements, one of which increases and the other decreases the height of the pillow when moving the wedge elements, the distribution mechanism is made in the form associated with the reference elements of the rack with two tooth sections, the teeth of which are directed counterclockwise, and two groups of dogs, each connected to the input link of the corresponding stop device. 30 16 35 33 3 <t Α-Α I View In-in FIG. 8 78 83 13 57 504 women FIG. 13 ---- FIG. 14 of FIG. 16