CN102704498A

CN102704498A - Technology for processing soil filled slope by combining geogrids and concrete panels

Info

Publication number: CN102704498A
Application number: CN2012101748735A
Authority: CN
Inventors: 郭培玺
Original assignee: Wuhan Surveying Geotechnical Research Institute Co Ltd of MCC
Current assignee: Wuhan Surveying Geotechnical Research Institute Co Ltd of MCC
Priority date: 2012-05-31
Filing date: 2012-05-31
Publication date: 2012-10-03

Abstract

The invention discloses a technology for processing a soil filled slope by combining geogrids and concrete panels. The technology comprises the following steps of: flattening to a foundation design elevation, paving a layer of broken stone hardcore on ground, and manufacturing a concrete ground beam, wherein the height of the ground beam is required to be greater than that of a first layer of grinds; after the age of the pouring of the ground beam is reached, paving the geogrids inside the ground beam, and laminating on different layers; placing embedded bars on the top of each layer of the geogrids, and manufacturing bent hooks at the front ends of the steel bars; after the geogrids are paved for certain height, starting to manufacture the concrete panels on the ground beam; and connecting the steel bars which are placed in advance and the steel bars of the panels, wherein the step of connecting the steel bars which are placed in advance and the steel bars of the panels is used as fixing measures of a concrete formwork.

Description

GSZ combines the concrete panel to handle the side slope technology of banketing

Technical field

The present invention relates to the geotechnical engineering technical field, is that a kind of GSZ that utilizes combines the concrete cast-in-situ panel to handle the technology of the side slope of banketing.

Background technology

The processing side slope of banketing generally adopts common form such as gravity retaining wall, grappling plate type retaining wall, anchor retaining wall, steel concrete cantilever retaining wall and reinforced earth retaining wall.Gravity retaining wall dependence wall body deadweight support soil pressure is kept it and is stablized.General how building with sheet (piece) barnacle, form is simple, can gather materials on the spot.But soil pressure and moment of flexure that the stable dependence concrete wall opposing of its whole body of wall is banketed and produced, the general section size is big.

To the side slope of banketing, the construction of GSZ is comparatively simple, less demanding to the place, and used machinery is also less relatively.Lower to the ground requirement for bearing capacity.Speed of application is fast, reduces investment outlay.Domaticly can plant grass, relatively environmental protection.

Weak point: be used for the fixedly woven bag easy ageing of GSZ of anti-package, and cause the soil body to run off, domatic uneven.As do not carry out slope greening, domatic relatively more dull.

Summary of the invention

The objective of the invention is to adopt GSZ to combine the concrete cast-in-situ panel to reinforce to the side slope of banketing.

GSZ of the present invention combines the concrete panel to handle the side slope technology of banketing, and comprising:

(1) lays one deck GSZ+graded broken stone mattress layer at first on the ground; Make concrete ground beam then, (28d) was at inboard GSZ, the layered rolling laid of grade beam after grade beam had certain length of time; Embedded bar is placed at the top of every layer of GSZ, and the reinforcing bar front end is made into crotch.

After GSZ was partly laid completion, concrete slab was made in beginning on grade beam, and slab reinforcement is connected with prepositioned reinforcing bar, and embedded bar is used for the fixing of concrete slab, guaranteed the stable of concrete slab; And template fixing when can be used for concreting.

(2) finally form the banket form of side slope of GSZ and concrete slab joint reinforcement.

Concrete slab is connected with the soil body through embedded bar, and is more stable; In addition, concrete slab can prevent that the soil body runs off, and guarantees domatic attractive in appearance.

GSZ of the present invention combines the concrete panel to handle to banket the advantage of side slope technology to be: the GSZ barricade is lower to the ground requirement for bearing capacity, and concrete slab can guarantee domatic smooth, prevents simultaneously because the aging loss that causes charges of geotextile; Concrete slab is connected with the soil body through embedded bar, and is more stable; Embedded bar can be used as the fixation of concrete slab template, accelerates construction.

Description of drawings

Fig. 1 combines the concrete slab sketch map for GSZ.

Fig. 2 is the embedded bar connection layout.

1, cast-in-place panel; 2, tension rib; 3, embedded bar; 4, cast-in-place grade beam;

5, C15 plain concrete cushion layer; 6, GSZ+graded broken stone mattress layer.

The specific embodiment

Root a tree name accompanying drawing 1. (1) shown in Figure 2 does not at first meet the demands like ground superficial part bearing capacity, changes earlier and fills out, and is smooth then to design altitude; Lay one deck GSZ+graded broken stone mattress layer on the ground 6., and build C15 concrete bed course 5., begin then to make concrete ground beam 4.; The grade beam requirement for height is slightly higher than first floor grid, reaches certain length of time after grade beam is built, at the inboard GSZ of laying of grade beam; Layered rolling; Every layer of GSZ rubble that is packed in bag is fixed, and embedded bar is placed in its top 3., and the reinforcing bar front end is made into crotch; (2) after GSZ was laid and accomplished certain altitude, 1. beginning made concrete slab on grade beam, and prepositioned reinforcing bar and slab reinforcement (main muscle, tension rib are 2.) connect, simultaneously as the concrete blinding fixation.

Claims

1. a GSZ combines concrete slab to handle the method for the side slope of banketing; It is characterized in that: (1) is smooth to the basic engineering elevation; Lay one deck GSZ+graded broken stone mattress layer on the ground 6., build C15 concrete bed course 5., make concrete ground beam then 4..The grade beam requirement for height is slightly higher than first floor grid.After grade beam is built and is reached the length of time, at inboard GSZ, the layered rolling laid of grade beam.Embedded bar is placed in the top of every layer of GSZ 3., and the reinforcing bar front end is made into crotch; (2) after GSZ was laid and accomplished certain altitude, 1. beginning made concrete slab on grade beam.Prepositioned reinforcing bar is connected with slab reinforcement (main muscle, tension rib are 2.), simultaneously as the concrete blinding fixation.