CN105297740B - A kind of FRP plate belt foundation pit enclosure structure carries out the construction method of pattern foundation pit supporting structure - Google Patents

A kind of FRP plate belt foundation pit enclosure structure carries out the construction method of pattern foundation pit supporting structure Download PDF

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Publication number
CN105297740B
CN105297740B CN201510638274.8A CN201510638274A CN105297740B CN 105297740 B CN105297740 B CN 105297740B CN 201510638274 A CN201510638274 A CN 201510638274A CN 105297740 B CN105297740 B CN 105297740B
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China
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pile
supporting
pile tube
foundation pit
frp
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CN105297740A (en
Inventor
夏雄
先礼琼
刘灿明
王逸波
毛建军
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JIANGSU ZEYU ENVIRONMENTAL ENGINEERING Co Ltd
Changzhou university huaide college
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JIANGSU ZEYU ENVIRONMENTAL ENGINEERING Co Ltd
Changzhou university huaide college
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Abstract

The invention discloses a kind of FRP plate belt foundation pit enclosure structure and construction method, pattern foundation pit supporting structure is realized installed in foundation ditch surrounding, including along pattern foundation pit supporting structure line setting, draw hole insertion using pile tube made by FRP reinforcements, described three one group of composition supporting pile bodies of pile tube, pile tube position at the top of pile tube and at excavation of foundation pit deep bottom, is respectively equipped with holding pile tube and supports the hoop of three root canal piles to lock, and being intertwined and connected between the front side pile tube of supporting pile body has FRP band cloth.The present invention adopts FRP pile tubes, by arranging hoop lock, stull and constraint are formed to support pile body, supporting construction is more stable, FRP band cloth plays preferably gear soil effect, so as to pattern foundation pit supporting structure type can be enriched, expand the pattern foundation pit supporting structure range of choice, shorten the construction period, realize energy-saving, pattern foundation pit supporting structure form also can expand to spatial model from conventional plane mode, effectively increase the rigidity of supporting construction, realize the safety and stability of base pit engineering.

Description

A kind of FRP plate belt foundation pit enclosure structure carries out the construction method of pattern foundation pit supporting structure
Technical field
The present invention relates to construction engineering technical field, especially one kind carry out base using FRP plate belt foundation pit enclosure structure The construction method of hole supporting.
Background technology
In base pit engineering, the appropriate design of retaining design is the problem of core the most.It is main that current base pit engineering goes along with sb. to guard him pattern Using steel sheet pile, reinforced concrete sheet pile, cast-in-situ bored pile barricade, diaphram wall, Deep-stirred Soil-cement Gravity Retaining Wall Soil nail wall and composite soil nailing wall etc..These structural systems ensure that the good engineering support of pile foundation to a certain extent, however, Its engineering material consumes big, and the engineering construction cycle is longer, and environmental pollution is serious so that under the overall situation of energy-saving and emission-reduction, various Support technology is required for further improving.
The content of the invention
The technical problem to be solved in the present invention is:Overcome the deficiency in prior art, there is provided a kind of FRP plate belt foundation ditch encloses Protection structure and construction method, with abundant supporting construction type, realize the material economy of base pit engineering, shorten construction period, reach Energy-saving purpose.
The technical solution adopted for the present invention to solve the technical problems is:A kind of FRP plate belt foundation pit enclosure structure, installs Pattern foundation pit supporting structure is realized in foundation ditch surrounding, including along pattern foundation pit supporting structure line setting, draw hole insertion and manage using made by FRP reinforcements Stake, described three one group of composition supporting pile bodies of pile tube, the pile tube position at the top of pile tube and at excavation of foundation pit deep bottom, It is respectively equipped with holding pile tube and supports the hoop of three root canal piles to lock, being intertwined and connected between the front side pile tube of supporting pile body there are FRP bands Cloth.
Further, described hoop lock includes, around the stirrup for clamping pile tube, support three being connected between described stirrup The triangle batten plate of root canal pile.
A kind of construction method that pattern foundation pit supporting structure is carried out using above-mentioned FRP plate belt foundation pit enclosure structure, with following steps:
A, along pattern foundation pit supporting structure line setting, mechanical equivalent of light excavation is into gathering sill;
After b, guide groove positioning, draw hole pitching pile and insert the pile tube that three FRP reinforcements make;
After c, pile tube implantation stratum, fixed using hoop lock at the top of three root canal piles, first stirrup is clamped per root canal pile, then Three stirrup connections are supported into pile tube with triangle batten plate, the supporting pile body of three combinations is consequently formed;
D, repetition b, step c, supporting pile body is progressively deployed;
E, foundation ditch side are excavated, while FRP band cloth is wrapped between the front side pile tube of supporting pile body;
F, excavate in place after, the local cleaning soil body, repeat step c, with hoop at the pile tube position at cutting depth bottom Lock is by the pile tube in excavation of foundation pit face support locking;
G, finally enclose to form FRP plate belt foundation pit supporting system.
The invention has the beneficial effects as follows:The present invention adopts FRP pile tubes, by arranging hoop lock, forms stull to support pile body And constraint, supporting construction is more stable, while FRP band cloth plays preferably gear soil effect, so as to pattern foundation pit supporting structure type can be enriched, Expand the pattern foundation pit supporting structure range of choice, shorten the construction period, realize energy-saving, promote Sustainable Construction Industry, while by base Hole support form expands to spatial model from conventional plane mode, strengthens the globality of supporting construction, effectively increases and props up The rigidity of protection structure, realizes the safety and stability of base pit engineering.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the mounting vertical plane structural representation of the present invention.
Fig. 2 is the mounting plane structural representation of the present invention.
Fig. 3 is the structural representation of hoop lock of the present invention.
5. triangle batten plate of the hoop of 1. pile tube 2. lock 3.FRP bands 4. stirrup of cloth, 6. foundation ditch in figure
Specific embodiment
Presently in connection with accompanying drawing and preferred embodiment, the present invention is further illustrated.These accompanying drawings are simplified signal Figure, only illustrates the basic structure of the present invention in a schematic way, therefore which only shows the composition relevant with the present invention.
A kind of FRP plate belt foundation pit enclosure structure as shown in FIG. 1 to 3, realizes foundation ditch installed in 6 surrounding of foundation ditch Shield, adopts pile tube 1 made by FRP reinforcements, described pile tube 1 three including hole insertion along 6 supporting line setting of foundation ditch, is drawn One group of composition supporting pile body, 1 position of pile tube at the top of pile tube 1 and at 6 cutting depth bottom of foundation ditch is respectively equipped with holding pipe Stake 1 simultaneously supports the hoop of three root canal piles 1 to lock 2, and described hoop lock 2 is included around the stirrup 4 for clamping pile tube 1, between described stirrup 4 It is connected with the triangle batten plate 5 for strutting three root canal piles 1.
Being intertwined and connected between the front side pile tube 1 of supporting pile body has FRP bands cloth 3, is consequently formed 6 surface layer of foundation ditch, plays gear The effect of soil, soil layer active force is delivered on supporting pile body, realizes an effectively gear.
A kind of construction method that pattern foundation pit supporting structure is carried out using above-mentioned FRP plate belt foundation pit enclosure structure, with following steps:
A, along 6 supporting line setting of foundation ditch, mechanical equivalent of light excavation is into gathering sill;
After b, guide groove positioning, draw hole pitching pile and insert the pile tube 1 that three FRP reinforcements make;
After c, the implantation of pile tube 1 stratum, fixed using hoop lock 2 at the top of three root canal piles 1, stirrup 4 is clamped into every root canal pile first 1, three stirrups 4 are connected into support pile tube 1 with triangle batten plate 5 then, the supporting pile body of three combinations is consequently formed;
D, repetition b, step c, supporting pile body is progressively deployed;
E, 6 side of foundation ditch are excavated, while FRP bands cloth 3 is wrapped between the front side pile tube 1 of supporting pile body;
F, excavate in place after, the local cleaning soil body, repeat step c, with hoop at 1 position of pile tube at cutting depth bottom 2 are locked by the pile tube 1 in 6 excavation face support locking of foundation ditch;
G, finally enclose to form 6 support system of FRP plate belt foundation ditch.
The pile tube 1 that the present invention is made using FRP, by arranging hoop lock 2, forms stull and constraint, supporting to support pile body Structure is more stable, while FRP band cloth plays preferably gear soil effect, sand gathers, and cohesive soil can be spaced 30cm arrangements, have The advantages of low cost, convenient construction, so as to 6 Support types of foundation ditch can be enriched, expand the range of choice of 6 supporting of foundation ditch, shortening is applied The work duration, realize energy-saving.6 support form of foundation ditch is expanded to into spatial model from conventional plane mode simultaneously, is strengthened The globality of supporting construction, effectively increases the rigidity of supporting construction, realizes the safety and stability of 6 excavation project of foundation ditch.
Above-described embodiment technology design only to illustrate the invention and feature, its object is to allow person skilled in the art Scholar will appreciate that present disclosure and be carried out, can not be limited the scope of the invention with this, all according to the present invention Equivalence changes or modification that spirit is made, should all cover within the scope of the present invention.

Claims (2)

1. a kind of FRP plate belt foundation pit enclosure structure carries out the construction method of pattern foundation pit supporting structure, and described building enclosure is included along base Cheat (6) supporting line setting, draw hole insertion using pile tube (1) made by FRP reinforcements, (1) three one group of described pile tube Supporting pile body is constituted, pile tube (1) position at the top of pile tube (1) and at foundation ditch (6) cutting depth bottom is respectively equipped with holding Three root canal piles (1) simultaneously support the hoop of three root canal piles (1) to lock (2), and being intertwined and connected between the front side pile tube of supporting pile body has FRP bands Cloth (3);
Described construction method has following steps:
A, along foundation ditch (6) supporting line setting, mechanical equivalent of light excavation is into gathering sill;
After b, guide groove positioning, draw hole pitching pile and insert the pile tube (1) that three FRP reinforcements are fabricated to;
It is after c, pile tube (1) implantation stratum, fixed using hoop lock (2) at the top of three root canal piles (1), first stirrup (4) is clamped per root Three stirrup (4) connections are then supported pile tube (1) with triangle batten plate (5), are consequently formed the supporting of three combinations by pile tube (1) Pile body;
D, repetition b, step c, supporting pile body is progressively deployed;
E, foundation ditch (6) side are excavated, while FRP band cloth (3) is wrapped between the front side pile tube (1) of supporting pile body;
F, excavate in place after, the local cleaning soil body at pile tube (1) position at cutting depth bottom, repeat step c, with hoop lock (2) by the pile tube (1) in foundation ditch (6) excavation face support locking;
G, finally enclose to form FRP plate belt foundation ditch (6) support system.
2. FRP plate belt foundation pit enclosure structure according to claim 1 carries out the construction method of pattern foundation pit supporting structure, its feature It is:Described hoop lock (2) includes, around the stirrup (4) for clamping pile tube (1), support three being connected between described stirrup (4) The triangle batten plate (5) of pile tube (1).
CN201510638274.8A 2015-09-30 2015-09-30 A kind of FRP plate belt foundation pit enclosure structure carries out the construction method of pattern foundation pit supporting structure Active CN105297740B (en)

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Publication number Priority date Publication date Assignee Title
CN111877302B (en) * 2020-08-25 2021-09-10 广东劲拓建设工程有限公司 Foundation construction method for in-situ solidification of surface soil and pile combined bearing

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CN202689031U (en) * 2012-05-23 2013-01-23 福建工程学院 Deep foundation pit retaining and protecting retaining wall
CN102704465A (en) * 2012-05-25 2012-10-03 中利建设集团有限公司 FRP (fiber reinforce plastic) fiber cloth winding pile and manufacturing method thereof
CN103074897A (en) * 2013-01-18 2013-05-01 卫海 Reinforced restraint earth compound supporting structure and construction method thereof
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