EP0340599B1 - Steuerbare Bodenplatte von Hochhäusern, sowie Verfahren zu deren Herstellung - Google Patents

Steuerbare Bodenplatte von Hochhäusern, sowie Verfahren zu deren Herstellung Download PDF

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Publication number
EP0340599B1
EP0340599B1 EP89107414A EP89107414A EP0340599B1 EP 0340599 B1 EP0340599 B1 EP 0340599B1 EP 89107414 A EP89107414 A EP 89107414A EP 89107414 A EP89107414 A EP 89107414A EP 0340599 B1 EP0340599 B1 EP 0340599B1
Authority
EP
European Patent Office
Prior art keywords
process according
chamber walls
chambers
injection
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89107414A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0340599A1 (de
Inventor
Helmut Dipl.-Ing. Stürmer
Hans-Jürgen Dr.-Ing. Bösch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philipp Holzmann AG
Original Assignee
Philipp Holzmann AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philipp Holzmann AG filed Critical Philipp Holzmann AG
Priority to AT89107414T priority Critical patent/ATE75274T1/de
Publication of EP0340599A1 publication Critical patent/EP0340599A1/de
Application granted granted Critical
Publication of EP0340599B1 publication Critical patent/EP0340599B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/34—Foundations for sinking or earthquake territories
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D35/00—Straightening, lifting, or lowering of foundation structures or of constructions erected on foundations

Definitions

  • the invention relates to a method for producing and controlling a controllable floor slab of high-rise buildings on settlement-sensitive floors that form lamellae, such as over-consolidated clays.
  • the invention relates in particular to those foundations which take place in the tertiary, namely in over-consolidated tones, or in younger layers immediately above, such as quaternary or young fillings.
  • These overconsolidated clays represent relatively solid soils that are characterized by - almost horizontal - lamella formation or leathering.
  • An example of such an over-consolidated tone is the so-called Frankfurt tone.
  • non-controllable shallow foundations are usually designed in the form of a floor slab, which is designed according to the center of gravity of the building to be erected above it and the geology.
  • the foundation takes place in the tertiary or younger classes immediately above. Any necessary adjustments to the structure must be made by applying dead loads above the foundation, ie the floor slab, or by inserting Presses are carried out in the body shop.
  • the disadvantage is that a targeted, permanent intervention in the adjustment of the building is difficult because the dead loads applied above the foundation plate only have an indirect effect and deformations can only be tracked over a long period of time and insufficiently corrected.
  • the adjustment options in the shell above the foundation slabs are limited in time and must be abandoned in the final state. Adjustment in the shell leads to an undesirable polygon in the structure; Compensation levels and drag plates are inevitable.
  • a controllable floor slab with an adjustment option under the floor slab has been provided.
  • water cushions made of a plastic which is known under the trade name "neoprene”
  • the skyscraper could be adjusted by draining water from individual water cushions in the raw state of the skyscraper. After the settling, which had been temporarily balanced, had subsided, the water was replaced by cement milk, which then hardened to cement stone.
  • mixed foundations In order to avoid partial subsidence from the outset, so-called mixed foundations are also known, in which large bored piles are arranged below a base plate. As a result, some of the loads are diverted via the slab area and some of the loads via the piles in order to bridge inhomogeneity of the ground.
  • the necessary bored pile work under the foundation bed is cost-intensive and can extend the overall construction time. Settlements are reduced, the higher the load-bearing part of the piles, however, there is no possibility of adjustment under the plate, since the piles claw in the ground and counteract a setting of the foundation plate that is desired for adjustment.
  • the concrete cylinders support the base plate, which only rests on the individual concrete cylinders. These concrete cylinders are intended to push a base plate like a hydraulic piston upwards when injecting injection material through injection pipes into different layers of gravel within the segment. For this purpose, injection pipes have been poured into different layers of gravel during the manufacture of the concrete cover.
  • a method for producing and controlling a controllable base plate is known, according to which downwardly open chambers are produced which are closed at the top and on which a load, in particular in the form of a base plate, rests at the top (GB-A-1 304 763).
  • each chamber there is only one sleeve for the injection material, into which an injection tube opens.
  • the chambers with solid, vertical lateral chamber walls do not subdivide the entire floor plan of the floor slab to be created, but only limited sub-areas. After creating the floor slab and erecting the building, hardening grout can be injected several times into a chamber to align the building.
  • the entire floor plan of the floor slab to be created is thus sub-chambered, with several shells being placed one above the other in each chamber, into each of which an injection tube extends.
  • the normal foundation work and construction progress are minimally hampered; the construction time is short. If differentiation occurs, these are specifically compensated for by predetermined amounts of injection material into the individual chambers and preferably with controlled different pressures.
  • the necessary pressing volume is known from the subdivision with chamber walls, so that time-consuming tests and adjustment processes can be omitted here.
  • the injections can also be carried out several times if necessary. Correction processes are also possible after the end of the shell construction phase without major expenditure.
  • the injection tubes forming part of the adjustment system can consist of metals or plastics or can be designed as hoses. If they are laid straight into the chambers from above, a hardened layer of material to be injected can be drilled through them so that the material to be injected for the next adjustment reaches a deeper layer through the same injection tube.
  • the geometry of the chambers can be flexibly adapted to the different geological and static conditions.
  • the base areas of the individual chambers can e.g. be round, oval or angular.
  • the chamber walls can be flexibly selected according to the special requirements of the building, its foundation and the geological conditions. It is important, however, that the chamber walls are firm enough to withstand the injection pressure and also any cracking process that may take place before the injection, so that the chamber volume is limited laterally and the advantageous effects of the adjustment can occur.
  • hardening liquids can be selected from emulsions, solutions, suspensions, pastes and mortars made of solids or synthetic resins according to DIN 4093 and DIN 18309 depending on the requirements.
  • a mixture of bentonite and cement is preferred which obtains clay-like properties when solidifying, which can be cracked for further adjustments if necessary.
  • Clay materials that remain plastic are particularly suitable for chambers that lie below the building's pivot points. If, on the other hand, it is only a question of partially filling the volumes of the chambers with hardening material for adjustment, cement milk can be used.
  • a special hardness, which is suitable for sandy soils, can be achieved with silicates as injection material.
  • the chamber walls extend into the floor under the cleanliness layer, which can consist of sub-concrete or another separating layer and which is preferably slotted at the position of the chamber walls.
  • the chamber walls if consisting of concrete, can advantageously be produced at the same time as the cleanliness layer.
  • the base plate lies over the cleanliness layer on the chamber volumes.
  • the chamber walls extend above the cleanliness layer.
  • the lifting of the chambers occurring during the adjustment can be facilitated by a sliding layer on the chamber walls, so that correspondingly lower injection pressures are sufficient.
  • a cleanliness layer initially made of sub-concrete or as a separating layer is designated by 1.
  • Chambers for example 2, 3, with a rectangular plan are arranged under the cleanliness layer. They are laterally delimited by essentially perpendicular solid walls which extend through slots 13, 14 in the cleanliness layer and merge tightly into a base plate 18 arranged on the cleanliness layer. The base plate supports the building. Continuous walls on the outer circumference of the entire chamber arrangement are designated by 4-7, further walls for internal division by 8 and 9.
  • chamber 2 is laterally delimited by walls 4, 7, 8 and 9.
  • the chambers are open at the bottom and include bottom 10.
  • the chambers lie in the tertiary 11, while a quaternary layer 12 is located in the area above the chambers.
  • Injection tubes extend into the chamber walls from above, e.g. 15, 16, 17.
  • the injection tubes are guided downwards through the base plate 18 and the cleanliness layer 1.
  • FIG. 3 it is shown how individual injection tubes 19-21 through a base plate 22 and a separating layer 29 as injection material guides into different injection bladders 23, 24, 25, which are formed by shells for injection material, in a side bounded by walls 26, 27 Pass chamber 28 open downwards.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Floor Finish (AREA)
EP89107414A 1988-05-02 1989-04-25 Steuerbare Bodenplatte von Hochhäusern, sowie Verfahren zu deren Herstellung Expired - Lifetime EP0340599B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89107414T ATE75274T1 (de) 1988-05-02 1989-04-25 Steuerbare bodenplatte von hochhaeusern, sowie verfahren zu deren herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3814885A DE3814885A1 (de) 1988-05-02 1988-05-02 Steuerbare bodenplatte von hochhaeusern, sowie verfahren zu deren herstellung
DE3814885 1988-05-02

Publications (2)

Publication Number Publication Date
EP0340599A1 EP0340599A1 (de) 1989-11-08
EP0340599B1 true EP0340599B1 (de) 1992-04-22

Family

ID=6353409

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89107414A Expired - Lifetime EP0340599B1 (de) 1988-05-02 1989-04-25 Steuerbare Bodenplatte von Hochhäusern, sowie Verfahren zu deren Herstellung

Country Status (3)

Country Link
EP (1) EP0340599B1 (enrdf_load_stackoverflow)
AT (1) ATE75274T1 (enrdf_load_stackoverflow)
DE (2) DE3814885A1 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0573444B1 (en) * 1991-02-12 1996-08-14 Void Formers Limited Building method and apparatus
NL1010212C2 (nl) * 1998-09-29 2000-03-30 Pieter Faber Werkwijze en inrichting voor het oplichten van een plaat, zoals een betonplaat.
CN101798822B (zh) * 2010-03-09 2012-02-22 三一电气有限责任公司 多腔室桶形基础下沉、起浮的控制方法及控制装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD84153A (enrdf_load_stackoverflow) *
DE836473C (de) * 1950-12-20 1952-04-15 Hans Lorenz Dr Ing Verfahren zur Vermeidung bzw. weitgehenden Verminderung der Beanspruchung von Grundwerkskoerpern beim Auftreten von Zerrungen und Pressungen im Baugrund in Bergsenkungsgebieten
SE338950B (enrdf_load_stackoverflow) * 1969-05-28 1971-09-20 K Algers
FR2056196A5 (enrdf_load_stackoverflow) * 1969-06-09 1971-05-14 Ty Lok Assembly Systems
DE2136645A1 (de) * 1971-07-22 1973-02-01 Horst Dipl Ing Meissner Verfahren und vorrichtung zum beeinflussen der soldruckverteilung an bauwerken
DE2334735A1 (de) * 1973-07-09 1975-01-30 Guenther Dipl Ing Buch Verfahren zum zentrieren der bauwerkslast gegenueber dem gruendungskoerper eines bauwerks
CH590370A5 (en) * 1975-04-01 1977-08-15 Stump Bohr Ag Foundation post prodn. process - using injection of freshly mixed concrete material under pressure into hardening on site concrete
DE2639792A1 (de) * 1976-09-03 1978-03-09 Anderson Ind Ab Paul Verfahren zur oertlichen erhoehung der tragfaehigkeit von lockerem boden

Also Published As

Publication number Publication date
DE3814885C2 (enrdf_load_stackoverflow) 1992-07-02
DE3814885A1 (de) 1989-11-16
EP0340599A1 (de) 1989-11-08
DE58901221D1 (de) 1992-05-27
ATE75274T1 (de) 1992-05-15

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