EP2540913B1 - Protective wall comprising individual protective wall elements for securing traffic routes - Google Patents

Description

The present invention relates to a preferably mobile protective wall according to the preamble of claim 1, which is formed from mutually connected in the region of their end faces protective wall elements for securing traffic routes, especially for temporary protection in the field of construction sites, and for the protection of persons or facilities in addition to Street, in which the protective wall elements have a plate-shaped, at least partially open or at least partially closed wall body, preferably made of concrete, metal, plastic or compounds of these materials.

Protective wall constructions made of a plurality of individual protective wall elements are known to the person skilled in the art and are preferably used to secure traffic routes, in particular for temporary or permanent stationary securing in the area of construction sites, workplaces and roads or the like. They are also used to protect against or against off-road vehicles and to protect persons or special facilities adjacent to a road.
A protective wall according to the Oberbergiff of claim 1 is for example from the DE 10 2007 023 B3 known.
Furthermore, for example, from the DE 91 06 411 U1 a so-called road traffic separation barrier, comprising an elongated foot plate having a longitudinally extending recess therein into which a divider plate upstanding from the foot plate is inserted.

From the US 2005/0201828 A1 is a prefabricated street center wall known to produce a series of blocks vertically on a foot element stacked and secured with inserted into aligned vertical openings of the individual blocks screwing.

The DE 1 784 011 describes a guide for roads, bridges or the like concrete blocks, each consisting of a road facing the front block and a support block arranged behind it.

The WO 93/12300 A1 discloses a protective wall element with a downwardly broadened base member and a laterally on or in the base member insertable attachment element.

From the DE 1 908 636 For example, a transportable guide device is known, for example, for the separation of carriageways, which has at least two support pillars which can be placed at a distance from one another and which are provided with vertically running grooves, wherein a wall can be inserted from above into the opposing grooves of the support pillars.

The DE 26 40 910 discloses a protective wall serving as a noise barrier and guide having box-shaped elements with lateral sheet metal walls, at least one of which is provided with a horizontally extending corrugation or the like, wherein the box-shaped elements to achieve the desired height and length are arranged one above the other and behind each other.

The DE 30 12 681 C2 discloses a slip threshold for securing traffic routes from chain-like using precast concrete components assembled by coupling members.

The EP 1 927 699 B1 describes a traffic barrier in which the wall elements can be secured via transverse holes and bolts on vertical profile elements.

In order to obtain approval for use on the road, protective wall systems today have to comply with stringent requirements, which in particular relate to the maximum deflection of a protective wall when attempting to approach vehicles of certain weight classes (passenger cars, trucks). Furthermore such protective wall systems must be inexpensive to produce, easy to disassemble and re-degradable and reusable several times. Furthermore, a safe installation and function should also be ensured in the event of a non-constant gradient or inclination of the erection ground, for example on crests or in depressions.

The invention has for its object to provide a protective wall or corresponding protective wall elements and set-up and connection devices for this, which meet the current requirements for the restraining function to be ensured and which are also inexpensive to produce, easy to assemble and often reusable, at the same time a safe installation and function even with non-constant slope or inclination of the footprint, for example on crests or in sinks, ensure.

This object is achieved by a protective wall with the features of claim 1.

Advantageous developments of the invention are the subject of subclaims, the wording of which is hereby included by express reference in the description in order to avoid unnecessary text repetitions.

A protective wall according to the invention of protective wall elements connected together in the region of their end faces for securing traffic routes, in particular for temporary protection in the field of construction sites and for the protection of persons or facilities next to the road, in which the protective wall elements a plate-shaped, at least partially open or at least partially closed wall body , preferably of concrete, metal, plastic or compounds of these materials, characterized, characterized in that the wall body has on its underside, which faces a substantially flat surface in the erected state of the protective wall, a cross-sectional widening transverse to the longitudinal extent of the relevant protective wall element and that in the wall body at least one oriented substantially in the longitudinal direction of the relevant protective wall element Connection structure is present, which cooperates with a corresponding connection structure of an adjacent protective wall element such that the adjacent protective wall elements by introducing a clamping and connecting means, preferably screw means in the region of the said connection structures releasably adjustable in the longitudinal direction against each other braced or braced.

Said bracing / screwing forms in the longitudinal direction of the protective wall in its retaining action adjustable drawstring, which is a fundamental feature of the present invention. In addition, the non-positive connection between the individual protective wall elements is guaranteed.

In the region of the mentioned cross-sectional enlargement, the individual protective wall elements can have an outward-oriented extension oriented essentially perpendicular to the wall body, which serves to set up the protective wall elements in order to enlarge the installation surface.

A first development of the protective wall according to the invention provides that the end faces of two protective wall elements to be joined are designed to be complementary, preferably and without restriction, at least partially flat, and in particular during clamping directly in contact with each other. Possible other embodiments of the end faces to be joined include oblique, stepped and toothed formations.

In this case, the protective wall elements can be set in the region of their cross-sectional enlargements or cross-sectional widenings against each other to the Increase stability of the protective wall. In addition, the cross-sectional enlargement provides for a widened footprint, as has already been noted.

According to the invention it is further provided that the wall body of a protective wall element in the region of said cross-sectional enlargement on its underside has at least one flat Aufstellflächenelement, preferably at least two in the transverse direction of the protective wall element spaced apart Aufstellflächenelemente which is or is preferably located in the terminal region of the protective wall element or are. As a result, the corresponding impact area of the protective wall elements can be increased, which leads to a further increased stability of the protective wall. Advantageously, the Aufstellflächenelement is formed of a suitable material having a thickness of at least 10 mm.

It is also provided according to the invention that the Aufstellflächenelement in the longitudinal direction has an excess over a surface of the end face of the relevant protective wall element. The butt joint in the transverse direction thus undergoes further reinforcement by the tension acting in the longitudinal direction (screw connection).

In addition, it can be provided in a development of the protective wall according to the invention that the wall body of a protective wall element has at least one recess which is formed for substantially positive reception of a profile element and is preferably arranged in the upper region of the protective wall elements. The said profile element protrudes in the received state out of the relevant protective wall element such that it is received or receivable in the corresponding recess of an adjacent protective wall element. The arrangement of the profile element, in particular in the form of a bolt, can preferably be carried out loosely. It forms a reinforcement of the connection in the head area against lateral loads of the protective wall.

Due to the releasably adjustable clamping, the protective wall elements can be used flexibly with one another in the longitudinal direction in such a way that unevenness of the set-up substrate is compensated for by permitting or realizing an angle of> 0 ° between the end faces of the protective wall elements.

Due to the releasably adjustable tension, the protective wall elements can again be used flexibly in the longitudinal direction with one another in such a way that unevenness of the installation surface is compensated for by permitting or realizing an angle of> 0 ° between the surfaces of the end face sides of the protective wall elements. The installation on the mentioned foot element facilitates this type of terrain compensation.

Another development of the protective wall element is characterized by a recess in the wall body, wherein preferably in the region of the recess at least a first lifting and transport element is provided to lift the protective wall element easily and safely, install and loaded.

Another development of the protective wall element is characterized in that the horizontal connecting element comprises a groove-shaped recess.

Preferably, said recess extends substantially over the entire longitudinal narrow side of the wall body.

Yet another development of the protective wall element is characterized in that the channel-shaped recess is defined laterally by a leg of an L-profile element, which is preferably formed in a metallic material such as steel, and whose respective other leg is perpendicular to the plate plane of the protective wall element extends outside. The outwardly facing legs of the L-profile represent a special form of the cross-sectional widening already mentioned and can serve to set up the protective wall element.

In addition, it can be provided that the channel-shaped recess is further defined essentially by the material of the wall body itself.

Furthermore, for reasons of stability and durability, it may be provided that, within the wall body - if this is at least partially e.g. formed in concrete or other ductile and hardenable material - reinforcing structures are arranged, preferably of metal or fiber reinforced plastic, which most preferably extend at least in the longitudinal direction of the wall body between the vertical connecting elements thereof. However, the wall body can also be formed open fence-like.

It can also be provided that at least a second lifting and transport element is provided on the upper side of the wall body, which lies opposite the groove-shaped recess, preferably in the form of a recess with counterpart for an eccentric or hook gripper, in order to ensure easy handling To reach protective wall elements.

Yet another development of the protective wall element is characterized by at least one recess in the outer surface of the wall body, in which at least one reflector element is arranged. Reflector elements can in particular also be arranged in the region of the mentioned outwardly pointing legs of the L-profile or in general and without restriction in the area of the cross-sectional distribution.

The plate-shaped wall body of the protective wall element according to the invention consists - as mentioned - preferably substantially of concrete, to provide the required mass to absorb high impact energy. The other components of the protective wall element are also preferably formed in a further development of the present invention in a metallic material, such as steel, in order to ensure the required stability and resilience in the impact of vehicles to avoid personal injury to the overall system.

In a highly preferred embodiment of the present invention, it is provided that both the set-up and connecting device and the protective wall element has an opening. The prestressing of the horizontal screw connection of two protective wall elements in the longitudinal direction thus enabled, in the event of an impact, in a special way complies with all the embodiments of the present invention Function of a so-called drawstring, which is in each case preferably realized in the upper region of the protective wall elements.

In the lower region of the individual protective wall elements, in the course of another development of the invention, the already mentioned outwardly angled L-shaped elements are preferably arranged, whose leg pointing outwards in the lower region of the protective wall elements is also passable, in order to additionally counteract tilting of the system during impact.

Within the wall body of the protective wall element reinforcing structures are provided which may preferably be made of hot-dip galvanized steel, but alternatively also of fiber-reinforced plastic or the like.

Various lifting and transport elements may be provided in the upper area of the protective wall elements, as has already been pointed out, which on the one hand facilitate the assembly or disassembly of the protective wall according to the invention and, moreover, also permit emergency measures, for example the installation and removal of protective wall elements by emergency services such as THW, Fire department or the like.

The Aufstellflächenelemente can in particular allow the outflow of rainwater.

In order to improve the visibility of a protective wall according to the invention at night, reflectors with retroreflective effect can be mounted in the longitudinal direction at right angles in the foot region and on the vertical of the protective wall elements. To the durability especially when touching the protective wall To improve truck tires, the reflectors can be mounted in recesses (glued and / or screwed), so that a shearing off of the fortifications is largely excluded. A preferred reflector distance in the longitudinal direction is 1.5 m.

In the upper region of the individual protective wall elements, means may be provided to enable the vertical mounting of devices to be placed, such as anti-glare elements or the like.

The proposed bulkhead system, with relatively low weight and volume over other systems, has economic advantages, based in particular on a minimum consumption of steel and concrete, while still achieving the highest retention values to meet the requirements of the relevant standards.

Especially the savings of weight and volume compared to previously known systems are advantageous for transport and assembly, especially in mobile and temporary applications.

Without limitation, the protective wall elements according to the invention may have a length of approximately 6 m at a height of approximately 50 cm. The lifetime of such protective wall elements is about 9 to 12 years, with about 3 to 4 inserts per year are provided in various projects. Protective walls according to the invention can be on average 5,000 to 7,000 m long.

Figur 1

zeigt schematisch das grundlegende Verbindungskonzept einer ersten Ausgestaltung der erfindungsgemäßen Schutzwand mit Schutzwandelementen in offener Bauweise;

Figur 2

zeigt schematisch das grundlegende Verbindungskonzept der ersten Ausgestaltung der erfindungsgemäßen Schutzwand mit Schutzwandelementen in geschlossener Bauweise;

Figur 3

zeigt schematisch den Blick auf die Endstirnseite eines Schutzwandelements gemäß Figur 1;

Figur 4

zeigt in einer perspektivischen Gesamtansicht eine Weiterbildung des Schutzwandelements aus Figur 3;

Figur 5

zeigt im Querschnitt eine alternative Ausgestaltung eines erfindungsgemäßen Schutzwandelements;

Figur 6

zeigt perspektivisch einen ersten Schritt beim Verbinden zweier Schutzwandelemente gemäß Figur 4;

Figur 7

zeigt perspektivisch einen zweiten Schritt beim Verbinden zweier Schutzwandelemente gemäß Figur 4;

Figur 8

zeigt innerhalb eines erfindungsgemäßen Schutzwandelements vorhandene Bewehrungs- und Transportelemente in einer ersten Seitenansicht;

Figur 9

zeigt in einem erfindungsgemäßen Schutzwandelement vorhandene Transport- und Bewehrungselemente in einer zweiten Seitenansicht;

Figur 10

zeigt perspektivisch eine weitere Schutzwandstruktur aus zwei erfindungsgemäßen Schutzwandelementen;

Figur 11

zeigt mögliche Anordnungen von Reflektoren bei einer erfindungsgemäßen Schutzwand;

Figur 12

zeigt mögliche Anordnungen von Reflektoren bei einer erfindungsgemäßen Schutzwand;

Figur 13

zeigt mögliche Anordnungen von Reflektoren bei einer erfindungsgemäßen Schutzwand;

Figur 14

zeigt eine Konfiguration einer erfindungsgemäßen Schutzwand bei unebenem Aufstelluntergrund;

Figur 15

zeigt eine andere Konfiguration einer erfindungsgemäßen Schutzwand bei unebenem Aufstelluntergrund;

Figur 16

zeigt eine Seitenansicht einer erfindungsgemäße Ausgestaltung der Schutzwandelemente zur Schaffung einer Zug-Druckstoß-Verbindung;

Figur 17

zeigt die Schutzwandelemente aus Figur 16 in der Draufsicht;

Figur 18

zeigt eine Seitenansicht einer anderen speziellen Ausgestaltung der Schutzwandelemente zur Schaffung einer Zug-Druckstoß-Verbindung;

Figur 19

zeigt die Schutzwandelemente aus Figur 18 in der Draufsicht;

Further features and advantages of the present invention will become apparent from the following description of exemplary embodiments with reference to the drawing.

FIG. 1

shows schematically the basic connection concept of a first embodiment of the protective wall according to the invention with protective wall elements in open design;

FIG. 2

shows schematically the basic connection concept of the first embodiment of the protective wall according to the invention with protective wall elements in a closed design;

FIG. 3

schematically shows the view of the end face of a protective wall element according to FIG. 1 ;

FIG. 4

shows in a perspective overall view of a development of the protective wall element FIG. 3 ;

FIG. 5

shows in cross-section an alternative embodiment of a protective wall element according to the invention;

FIG. 6

shows in perspective a first step in connecting two protective wall elements according to FIG. 4 ;

FIG. 7

shows in perspective a second step in connecting two protective wall elements according to FIG. 4 ;

FIG. 8

shows within a protective wall element according to the invention existing reinforcement and transport elements in a first side view;

FIG. 9

shows in a protective wall element according to the invention existing transport and reinforcing elements in a second side view;

FIG. 10

shows in perspective another protective wall structure of two protective wall elements according to the invention;

FIG. 11

shows possible arrangements of reflectors in a protective wall according to the invention;

FIG. 12

shows possible arrangements of reflectors in a protective wall according to the invention;

FIG. 13

shows possible arrangements of reflectors in a protective wall according to the invention;

FIG. 14

shows a configuration of a protective wall according to the invention on uneven ground;

FIG. 15

shows a different configuration of a protective wall according to the invention on uneven ground;

FIG. 16

shows a side view of an inventive embodiment of the protective wall elements to create a train-pressure shock connection;

FIG. 17

shows the protective wall elements FIG. 16 in the plan view;

FIG. 18

shows a side view of another specific embodiment of the protective wall elements to provide a train-pressure shock connection;

FIG. 19

shows the protective wall elements FIG. 18 in the plan view;

In all figures, like reference numerals designate the same or equivalent elements.

FIG. 1 shows a protective wall according to the invention 38, which is formed of a plurality of interconnected protective wall elements 17, of which in FIG. 1 only two are shown as examples. The protective wall elements 17 are set up to create the protective wall 38 on a substrate 3 and in the area the end faces 19, 20 of their respective wall body or wall body elements 18 are connected together in a connecting region VB. The connection takes place by means of tensioning / connecting means 39 arranged or effective in the longitudinal direction of the protective wall 38, which can be designed in particular, but without limitation, as a threaded bolt. The clamping / connecting means 39 may be arranged relative to the substrate 3 in the upper and / or middle and / or lower region of the protective wall elements 17. The clamping / connecting means 39 may also be arranged centrally and / or eccentrically relative to a vertical central axis (not explicitly designated) of the protective wall elements 17.

According to the embodiment in FIG. 1 touch the protective wall elements 17 with their smooth, in the erected state substantially perpendicular to the substrate 3 oriented end faces 19, 20 to create the said compound area and immediately. The already mentioned clamping / connecting means 39 provide a non-positive connection and act as part of a releasably adjustable drawstring, which clamped in the protective wall elements 17 in the longitudinal direction to create the protective wall 38 against each other. On the arrangement of the clamping / connecting means 39 will be described below in particular with reference to FIG. 3 discussed in more detail.

The protective wall elements 17 according to FIG. 1 are characterized by a so-called open design and have - in the manner of a fence - horizontal struts 17a-c, which are oriented in the longitudinal direction of the protective wall 38. These horizontal struts 17a-c are also indicated by the illustration in FIG FIG. 3 good to take. In particular, some of the said horizontal struts 17a, 17b may be U-shaped in cross-section and oriented differently within the respective protective wall element 17. In its lower region facing or facing the substrate 3, the protective wall element 17 has a cross-sectional widening 17d, whereby on the underside of the protective wall element 17 a flat mounting surface laterally widened relative to the wall body 18 is formed, which forms an integral unit with the remaining protective wall element 17.

Furthermore, the FIG. 3 to take a vertical strut 17e of the described protective wall element 17, which the already mentioned horizontal struts 17a-c fence or gate-like connects. Such vertical struts 17e can be found in preferably regular intervals in the direction of the longitudinal extension of the protective wall element 17 FIG. 1 and FIG. 3 ,

At the end faces 19, 20 are each plate-shaped, flat termination elements 19 ', 20' are arranged, via which the individual protective wall elements 17 abut each other. As shown in FIG. 3 these termination elements 19 ', 20' between different protective wall elements 17 aligned connecting structures in the form of openings 23, which serve to receive the already mentioned clamping and connecting means 39.

The protective wall 38 or the protective wall element 17 according to FIG. 2 differs from the previously discussed embodiment according to the FIGS. 1 and 3 The latter are preferably made of a steel construction which is filled with a hardenable casting material, such as concrete, with internal reinforcement 42. It is also possible to use fiber concrete (fiber reinforced concrete) to obtain improved elasticity. For introducing the clamping / connecting means 39 recesses 26 d are provided in the wall body elements 18, as shown in the drawing. Otherwise, the design and function of the protective walls 38 are in accordance with the Figures 1 and 2 much as possible.

Thus, according to the FIGS. 1 to 3 the basic construction type of the protective wall 38 according to the invention have been conceptually explained, will now be described with reference to FIGS. 4 to 7 on constructive details of those Protective wall elements 17 received in more detail, which in a protective wall according to the FIGS. 1 and 3 preferably used.

FIG. 4 shows with reference to a perspective detail view again in more detail an embodiment of the protective wall element 17 according to FIG. 3 , It is at this point only to those constructive features of the protective wall element 17 according to FIG. 4 more detail in the FIGS. 1 and 3 not shown or were not recognizable.

This initially relates to reflector elements 28, 29, which can be arranged laterally in the region of the cross-sectional widening 17d on the upper side or on the horizontal struts 17a, 17b.

In addition, the protective wall element 17 according to FIG. 4 in the upper one
In each case a recess 19 ", 20" with a rectangular cross-section, which serves for the substantially positive reception of a profile element 46, which profile element 46 for the first time in FIG. 8 is shown. The relative dimensions of the profile element 46 and the recesses 19 ", 20" are selected such that the profile element 46 protrudes from the relevant protective wall element in the received state to connect the protective wall element 17 by engaging in the corresponding recess of an adjacent protective wall element with the adjacent protective wall element , This increases the transverse stability of the created protective wall. Preferably, apart from the positive reception in the recesses 19 ", 20" no further fixation of the profile element 46, which facilitates the construction of the protective wall. Furthermore, in FIG. 4 still shown that the protective wall element 17 in
Region of said cross-sectional enlargement 17 d on its underside 25 has two flat, spaced apart in the transverse direction of the protective wall element 17 Aufstellflächenelemente 47. These Aufstellflächenelemente 47 are preferably made of a suitable material with a material thickness of at least 10 mm and facilitate the one hand, the erection of the protective wall element 17 on uneven ground 3, while allowing on the other hand, due to their areal limited extent in the passage and drainage of rainwater or the like below the protective wall element , In addition, results from the provision of Aufstellflächenelemente 47 in the connection region VB (see. Figures 1 and 2 ) an enlarged Antagefläche the protective wall elements 17 in the transverse direction, which together with the made or to be carried longitudinal clamping of the protective wall elements 17 for improved connection stability and transverse rigidity of the protective wall 38 of the invention provides (so-called. Below is based on the FIGS. 16 to 19 shown in more detail how the Aufstellflächenelemente can cooperate when connecting individual protective wall elements 17 to a protective wall.

FIG. 5 shows in detail in cross section an alternative embodiment of a protective wall element 17 according to the invention, which has a closed construction with a corresponding wall body element 18. In particular, the gap between two plane-parallel, plate-like horizontal struts 17a may be filled with a suitable filling material. Otherwise, the basic design essentially corresponds to that according to FIG. 4 , In particular, in view of the FIG. 5 however, with validity also for all further protective wall elements 17 according to the invention, it should be noted that they are regularly formed larger in the region of their height H than in the region of their width B, the width of the protective wall elements 17 being larger in the area of the mentioned cross-sectional widening 17d (reference symbol B ') as the width B in the region of the wall body element 18th

In FIG. 6 is again detailed the already by means of FIG. 4 addressed facts when connecting two protective wall elements 17 by means of a recessed into the recesses 19 ", 20" inserted or used profile element 46. It is intended in this context only to details of FIG. 6 are received, which are based on FIG. 4 not yet shown or described.

The profile element 46 is formed as a hollow profile with a rectangular cross-section, the dimensions of which essentially correspond to the dimensions of the recesses 19 ", 20", in order to be able to bring the profile element 46 essentially into the recesses 19 ", 20" in a form-fitting manner. At its top points the profiled element 46 has a projecting stop structure 46a which is arranged centrally with respect to its longitudinal extent of the profiled element and serves to define a maximum penetration depth of the profiled element 46 into the relevant protective wall element 17 or the recess 19 ", 20" provided therein. Said projecting structure 46a cooperates with complementary notches 19 "', 20"' in the region of the recesses 19 ", 20", wherein the respective depth of the notches 19 "', 20"' is substantially just half the extent of the structure 46a in FIG Longitudinal direction of the profile element 46 corresponds. Thus, the projecting structure 46a is completely receivable within the combined sipes 19 "', 20"' in the case of connected bulkhead elements 17.

FIG. 7 shows the protective wall elements 17 according to FIG. 6 in advanced merge using the profile element 46, as already described above.

FIG. 8 shows an embodiment of the protective wall element 17 before an introduction in particular of concrete for producing the wall body 18, which according to in FIG. 8 not shown. In the interior of the protective wall element 17, effective reinforcing or reinforcing structures 42 and 43 and associated retaining structures 44 are provided on the one hand in the longitudinal and transverse direction, which are cast during casting of the wall body, in order to give them the necessary stability, in particular tensile strength. At reference numeral 35, in turn, the already mentioned spacer element can be seen, which cooperates with the already mentioned holding structure 44 and at the same time carries the projecting structure 36.

After attaching a lateral formwork, the protective wall element 17 is compared with the representation in Figure 24 turned upside down and filled in the direction of arrow B with the wall body material, preferably concrete, until this reaches approximately the level N. The filling material then fills the entire region, indicated by hatching in FIG. 24, within the protective wall element 17, with the exception of the region designated by reference numeral 26d within the element 26c.

In FIG. 9 the protective wall element 17 is shown again before filling the filling material, wherein the reference numerals to those in FIG. 8 correspond. Well recognizable in FIG. 9 nor the pin or bolt element 27b for the second lifting and transport element 27. The transverse reinforcements 43 extend according to FIG. 9 at an angle α = 45 ° with respect to a median plane M of the protective wall element 17. The longitudinal reinforcements 42 are received in lateral recesses 45 of the support structure 44.

FIG. 10 shows a further embodiment, but wherein the left, terminal protective wall element 17 'of the protective wall 38 is formed as a protective wall terminating element and as such has a height H decreasing towards its free end 17a'. There, the protective wall element 17 'also still attachment structures 17 b' in the form of openings for anchoring in the underground and a bow-shaped lifting device 17c 'for transport.

The FIGS. 11 to 13 clarify again possible attachments of reflectors 28, 29 in inventive protective wall elements 17th

The FIGS. 14 and 15 can be seen as in a protective wall 38 according to the invention by appropriate adjustment of the tension band in the form of clamping / connecting means 39 in the course of the protective wall 38 in the vertical perpendicular to its longitudinal extent to unevenness of the Aufstell-subsurface 3 adapt.

The representation in FIG. 14 represents the situation when installing the protective wall 38 in a sink. The drawn angle β between the individual protective wall elements 17 is β <180 °. This corresponds in principle to a deviation of the footprint 3 from the dashed line horizontal HO or any flat reference surface.

According to FIG. 15 If the situation is different, here is the protective wall 38 in the region of a dome, so that applies for the said angle: β> 180 °. By appropriate adjustment of the tension band (tighten or loosen the clamping / connecting means 39) can be despite the occurring wedge-shaped gap between the end faces 19, 20 of the protective wall elements secure and effective clamping of the same against each other. The foot element 2 of the installation and connection device 1 provides the necessary compensation possibility in the vertical direction.

• Die Schutzwandelemente 17 gemäß Figur 16 besitzen an ihren Unterseiten im Stoßbereich jeweils mindestens ein Aufstellflächenelement 47, welches in Längsrichtung ein Stück weit über die Endstirnseite 19 bzw. 20 des jeweiligen Schutzwandelements 17 hervorsteht, so dass sich gemäß der Darstellung in Figur 39 ein lichter Abstand d zwischen den genannten Endstirnseiten 19, 20 ergibt, wenn die Aufstellflächenelemente 47 aneinander in Druckstoß-Anlage treten, was in Figur 16 durch das Bezugszeichen DS symbolisiert ist. Die Spann-/Verbindungsmittel 39 sorgen wiederum für die gewünschte Längsverspannung der Schutzwandelemente 17, so dass sich eine Zug-Druck-Verbindung ergibt.

The representation according to FIG. 16 is essentially the same as in FIG. 2 , so that only a few special features are explained below:

• The protective wall elements 17 according to FIG. 16 have at their bottoms in the joint area in each case at least one Aufstellflächenelement 47, which in Extends longitudinally a little way over the end face 19 and 20 of the respective protective wall element 17, so that, as shown in Figure 39, a clear distance d between said end faces 19, 20 results when the Aufstellflächenelemente 47 contact each other in pressure surge plant, what in FIG. 16 symbolized by the reference DS. The clamping / connecting means 39 in turn ensure the desired longitudinal tension of the protective wall elements 17, so that there is a train-pressure connection.

FIG. 17 shows the same facts for a better understanding again in plan view.

The construction according to the FIGS. 18 and 19 On the other hand, it corresponds essentially to that according to those already described FIGS. 6 and 7 , so that on this principle is not to go further. Deviating from the illustration according to FIG. 6 or 7 is however also according to the FIGS. 18 and 19 provided that between the end faces 19, 20 of the protective wall elements 17 to be joined a distance d remains when the lower side Aufstellflächenelemente 47 are in the pressure surge DS. This in turn results in the already mentioned train-pressure connection.

Claims (5)

1. Protective wall (38), composed of protective wall elements (17) connected to one another in the region of their end faces (19, 20), for safeguarding traffic routes, especially for temporary safeguarding in the region of building sites and for protecting persons or equipment next to the road, wherein the protective wall elements (17) have a panel-like, at least partly open or at least partly closed wall body (18), which wall body (18) has on its underside (25), which in the installed state of the protective wall (38) faces towards a substantially flat substrate (3), a portion of wider cross-section (17d, 32, 33) transverse with respect to the longitudinal extent of the relevant protective wall element, and in the wall body there is at least one connecting structure (23, 24) oriented substantially in the longitudinal direction of the relevant protective wall element, which connecting structure co-operates with a corresponding connecting structure of an adjacent protective wall element in such a way that, by introduction of a clamping and connecting means (39, 40), the adjacent protective wall elements are clamped or clampable against one another releasably adjustably in the longitudinal direction in the region of the said connecting structures,
   characterised in that
   the wall body (18) of a protective wall element (17) has on the underside (25), in the region of the said portion of wider cross-section (17d, 32, 33), at least one flat support surface element (47), and this support surface element (47) has, in the longitudinal direction of the relevant protective wall element, an overhang relative to a face (19', 20') of the end face (19, 20) of the relevant protective wall element.
2. Protective wall (38) according to claim 1, characterised in that the wall body (18) of a protective wall element (17) has at least one recess (19", 20") which is arranged for substantially interlocking reception of a profile element (46), which profile element, in the received state, projects from the relevant protective wall element in such a way that it is received or receivable in the corresponding recess of an adjacent protective wall element.
3. Protective wall (38) according to claim 1 or 2,
   characterised in that
   the wall body (18) is made in concrete, metal, plastics or combinations of those materials.
4. Protective wall (38) according to any one of claims 1 to 3,
   characterised in that
   the clamping and connecting means (39, 40) is in the form of screw means.
5. Protective wall (38) according to claim 1 to 4,
   characterised in that
   the wall body (18) has at least two support surface elements (47) spaced apart from one another in the transverse direction of the protective wall element, preferably in the end region of the protective wall element (17).

Images