CN1106098A

CN1106098A - Ribbed anchor board earth structure and its construction method

Info

Publication number: CN1106098A
Application number: CN 94100288
Authority: CN
Inventors: 杨洪
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-02-26
Filing date: 1994-02-26
Publication date: 1995-08-02

Abstract

The reinforced earth structure with anchor plate is suitable for retaining wall, abutment, embankment, hydraulic structure, or industrial structure features that each unit is composed of wall surface plate, anchor plates and anchor reinforcement and the structure is built by splicing multiple units from bottom to top and tamping filler. Its advantages are smooth and beautiful appearance and saving materials and labour.

Description

Ribbed anchor board earth structure and its construction method

The present invention relates to a kind of building structure, the soil-baffling structure and the job practices thereof of particularly a kind of embankment that is applicable to retaining wall, abutment, Rail Highway, water conservancy project structure, industrial structure etc.

Known retaining wall, abutment or embankment etc. adopt form anchor structure or earth structure usually.Wherein the form anchor structure is by beam, baffle plate, dowel, form anchor and the common soil-baffling structure of forming that bankets, its loading characteristic is that earth lateral pressure passes to beam by baffle plate, pass to dowel by beam again, dowel passes to form anchor, keeps balance by the uplift resistance of form anchor again.The defective of this structure has three: at first be owing to beam is arranged, so metope is attractive in appearance inadequately; Next is that dowel must be longer, causes the horizontal cross filler thicker, and except that increasing labor and materials, some engineering can not be suitable for; At last, when structure is higher, prefabricated units is installed is used crane gear, otherwise need the cast-in-place member.Earth structure is by shingle nail, lacing wire and the soil-baffling structure that bankets and jointly form, and its loading characteristic is that earth lateral pressure is passed to lacing wire by shingle nail, lacing wire again by it and the frictional force between banketing keep balance.The defective of this structure has four: (1) must use the sand filler, otherwise uneconomical; (2) generally adopt galvanized flat steel to do lacing wire,, must consider durability carefully if environment is unfavorable to anticorrosion; (3) owing to keep stablely,, cause the horizontal filler of structure level thicker so lacing wire also must be longer by lacing wire and the frictional force between banketing, the consumption of increase labor and materials, some engineering can't be suitable for.

The objective of the invention is to propose the new technical scheme of a soil-baffling structure, this soil-baffling structure, metope are smoothly attractive in appearance, and the horizontal cross distance is shorter, labor and material saving, compliance is big, during construction, needn't use crane gear, all member can be prefabricated, needn't cast-in-place.

Technical scheme of the present invention is as follows: ribbed anchor board earth structure, form a unit jointly by shingle nail (1), dowel (2), anchor slab (3), dowel (2) one ends connect shingle nail (1), and the other end connects anchor slab (3), after this structure can be prefabricated in the factory and finish, by requirement of engineering, will overlap parts more and transport to the scene, from down and on, by unit splicing, assembly unit on one side, on one side filler (4) is inserted wherein, compacting.The shape of shingle nail of every unit (1) and anchor slab (3) can adopt unified geometric figure as required separately.Shingle nail (1) and anchor slab (2) can be pure plate types, also can be beam and slab types.Shingle nail (1) and anchor slab (3) can adopt steel concrete, metal material, duroplasts or other civil material prefabricated; Dowel (2) is then according to structure application life and loading characteristic, adopt various metal material, geotechnique with synthetic fibers (Geotextile) or there is other material of certain pulling force to make Any shape, length can be shorter, and filler (4) can adopt soil or any granular material.

The loading characteristic of this ribbed anchor board earth structure is that the lateral pressure of filler (4) passes to shingle nail (1), node by shingle nail (1) passes to dowel (2) again, relies on the uplift resistance of mutual frictional force between dowel (2) and the filler (4) and anchor slab (3) to keep balance again.

Advantage of the present invention is as follows: (1) can not made any ground and handle, and belongs to flexible structure, can be applicable to the unfavorable foundation that bearing capacity is lower; (2) owing to be precast assembly, in narrow construction plant or the place of strict restriction noise, vibrations also can build; (3) save labor and materials, cost is low; (4) draining is good; (5) wall surface levelling is attractive in appearance, and can make various plane patterns or embossment; (6) dismounting is easy, also suits as temporary construction; (7) construction is that simple operation repeats, and does not need the technical staff, does not also support, and needn't take time in maintenance; (8) all operation can be carried out in a side of banketing.

Below in conjunction with the description of the drawings and embodiment, the invention will be further described.

Fig. 1 is the front view of ribbed anchor board earth retaining wall;

Fig. 2 is I-I sectional view of Fig. 1;

Fig. 3 is the structural representation of a unit of the present invention;

Fig. 4 is the schematic perspective view of ribbed anchor board earth retaining wall.

Embodiment 1:(Fig. 1-3)

Design a ribbed anchor board earth retaining wall, high 15.43 meters, adopt cross shingle nail 1, maximum size is 1.6 meters * 1.6 meters.Establish 4 galvanized flat steel dowels 2 on the every shingle nail 1, length is 6 meters.Wall jack-up is calculated 16.32 meters of orlop anchor slab 3 buried depths.Shingle nail 1 axis longitudinal pitch is 1.6 meters, 1.2 meters of vertical spacings, and anchor slab 3 is a square, 0.7 meter of the length of side.Filler 4 is a coarse sand clay compound, and getting the unit weight that bankets is 1.8 tons/cubic metre, angle of friction φ=25 degree.For reducing soil pressure, shingle nail 1 and anchor slab 3 designing and arrangings are classified BI as, the gradient is 1: 0.15, in order to reduce the water content of banketing, adopt the clay of 500 millimeters of each bed thickness up and down to intercept water, respectively establish the coarse sand drainage layer of one deck 300 millimeters thick behind shingle nail 1 and the anchor slab 3, one deck 500 millimeters thick coarse sand drainage layers are established in the bottom surface.

Embodiment 2:(Fig. 4)

Substantially with embodiment 1, just shingle nail 1 adopts rectangle, and each part dimension is done corresponding the adjustment.

Embodiment 3:

Substantially with

embodiment

1 or 2, just shingle nail 1 is to adopt the beam and slab type structure.

Claims

1, a kind of ribbed anchor board earth structure, it is characterized in that each unit is made of shingle nail (1), dowel (2) and anchor slab (3), one end of dowel (2) is connected with shingle nail (1), and the other end is connected with anchor slab (3), and overall structure is made of a plurality of block constructions and banket (4).

2, a kind of job practices of ribbed anchor board earth structure, it is characterized in that at first by the mode of design, shingle nail (1), dowel (2) and the anchor slab (3) of the prefabricated some of shape and size, then the three is connected into the unit respectively, again with the block construction of some, from down and upward assembly unit on one side, on one side earth filling tamping.