SI21619A - Prefabricated reinforced concrete wall with foundation toe of variable width - Google Patents

Abstract

The subject of invention, a prefabricated reinforced concrete retention wall with a foundation toe of variable width, relates to construction of retention walls. The prefabricated reinforced concrete retention wall with a foundation toe of variable width is intended for permanent or temporary supporting of slopes and consists of the following parts: foundation toe (1), pressure slab (2), additional pressure slab (3), backside slab (4), additional backside slab (5), basic element (6), corner element (7), block (8) and rib reinforcement (9). Pressure slabs (2) and, if needed, additional pressure slabs (3) are laid on the foundation ground at interspaces which allow foundation toe (1) elements to be laid between them. The backside (4) and, when needed, additional backside slab (5), depending on physical properties of soil, is laid on the bearing surface of the backside and additional backside slab (11). Stacking of basic elements (6) and, when needed, corner elements (7) on bearing surface of the ribs (12) is started at the adjacent foundation toe (1). After the desired wall height has been reached, the rib reinforcement is inserted and tensioned.

Description

INSTALLATION REINFORCED CONCRETE SUPPORT WALL WITH FIXED FLEXIBLE WIDTH

1.) The object of the invention is a reinforced concrete prefabricated retaining wall with a variable-width foundation heel relates to the construction of retaining or supporting walls.

2.) The technical problems to be solved by the invention are as follows: Reinforced concrete retaining walls can only be fully loaded once the concrete has reached the required strength and does not allow the width of the foundation heel to be constantly adjusted according to the physical characteristics of the soil in the foundation soil and the back slope.

3.) The known solution of the construction of reinforced concrete retaining walls so far represents their implementation on the spot. The disadvantages are: dependence of construction on weather conditions, it is necessary to notice and dismantle and install the reinforcement on site, the quality of the installation of reinforcement and concrete is questionable, therefore it is necessary to control these parts, long-term hardening of concrete, implementation at a time when the building material industry is full occupied, due to the long construction, the possibility of slipping the excavation slope is greater, in case of different soil characteristics in the basic soils and the hinterland than those determined by the investigations, the design of the wall or the rehabilitation of the underlying soil is required. The solutions provided so far do not allow the banks to be supported temporarily. Due to the questionable achievement of waterproofing of concrete, it is necessary to protect the reinforcement in concrete by waterproofing.

4.) The invention solves the following problems: shorter construction time since no carpentry, concrete and ironworks are required at the construction site except rib prestressing and injection, construction is independent of outside temperatures, allows production of elements outside the construction season, due to industrial production, better quality of elements and easier quality control, allows temporary support of the slopes as all elements can be reused, during the construction it is possible to adjust the width of the base heel according to the physical characteristics of the soil in the back slope and the base soil. Due to the optimum conditions for concreting the elements and achieving the watertightness of the concrete, it is not necessary to perform waterproofing to protect the reinforcement.

Reinforced concrete prefabricated retaining wall with variable width base heel FIG. 1 consists of: heel foundation 1, pressure plate 2 FIG. 7, additional pressure plate 3 FIG. 7, back panel 4 FIG. 6, additional back plate 5 FIG. 6, basic element 6, angular element 7, quadrant 8, rib armature 9 and mounting cylinder 12.

The fifth foundation 1 fig. 5 and FIG. 8 have the following parts: pressure and auxiliary pressure plate bed 10, back and additional back plate 11, rib armature anchor 13 and rib 14.

The basic element 6 fig. 3 and the corner element of the wall 7 FIG. 4 consists of: the face 15, the lower portion of the rib 16, the higher rib portion 17, the reinforcing channel of the rib 18, the mounting bearing 19.

Quadrant 8 fig. 2 has a rib end assembly 18 and an assembly bed 19.

The invention is used in such a way that all the elements are dimensioned in a manner known in the art and, on the basis of these calculations, elements are manufactured in an industrial plant for the production of pre-fabricated elements. The load capacity of each element must be indicated. After preparing the ground floor in a manner known to the prior art, it is necessary to place on the ground floor of the pressure plate 2 and, if necessary, additional pressure plates 3 at distances that allow the elements of the heel foundation 1 to be laid between them. The bearing of the pressure and additional pressure plates 10 must lie on the pressure plate 2 and on the additional pressure plate 3. Place the back plate 4 and, if necessary, the additional back plate 5 on the back and back back plate 11. After laying the five foundations 1, begin to lay down the basic elements 6 and, if necessary, angled elements 7. At both ends of the wall insert under the higher lying portions of the ribs 16 squares 8. After positioning the last row of the basic elements 6 and the corner element 7 reinforce the ribs by inserting reinforcement from the tensioning wires into the reinforcement channel of the rib 18 and anchor it into the anchorage bed armature ribs 13 and tension in a manner known in the art. Ribbed or other reinforcement known to the prior art may also be used. The reinforcement in the reinforcement ducts of the rib 18 is protected by injecting the mass in a manner and with materials known in the art. If a mounting roller 12 of steel tubes or rods has been installed in the mounting bays 19, these bays also need to be injected to prevent rusting.

FIG. 8 shows an embodiment of a mounting bearing 19 with a circular tooth, which also allows the elements to be laid in a bend.

For temporary support of the banks, no injection is necessary to protect the reinforcement from rusting.

After completion of the construction of prefabricated reinforced concrete wall with variable width of the foundation heel, the back ground is grounded with earth material in a manner known in the art.

In the straight line, we support the retaining wall using pressure plates 2, additional pressure plates 3, back plates 4 and additional back plates 5 of rectangular shape in the curve and we use panels 2-5 of trapezoidal shape. The longitudinal heels of the foundation 1 and the oblique heels of the foundation 20 are laid horizontally or inclined. In the event that due to the greater longitudinal slope of the terrain, it is necessary to complete the foundation of the staircase wall and put the next heels of the foundation 1 or oblique heels of the foundation 20 and continue with the implementation of the wall. By using additional pressure plates 2 and additional back plates 3, we increase the resistance and overturning torque, and thus the inclination of the resultant such that it falls into the core cross section and that no tensile stresses occur in the underlying soils.

If the calculation shows the instability of the wall on the slip, use the slanted heels of the foundation 20 fig. 9 or otherwise known in the art. Reinforced concrete prefabricated retaining wall with variable width foundation heel can also be anchored into the back bank by anchors 21 in a manner known in the art. The element to be anchored must have an anchor head bearing in place.

Jan Fabian Town. and with.

Claims (1)

PATENT APPLICATION Mounting reinforced concrete retaining wall with variable width foundation heel is characterized by the fact that the stresses caused by active earth pressure are transmitted through the mounting elements (6, 7, 8, 9) whose parts (8, 16, 17), after assembly, constitute the rib , to the foundation floor via the heel of the foundation (1), the pressure plate (2), the backplate (4) and, depending on the size of the pressure, also if necessary via the additional pressure plate (3) and the additional back plate (4).