CN204959767U - Novel suspended net shotcrete structure between stake - Google Patents

Novel suspended net shotcrete structure between stake Download PDF

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Publication number
CN204959767U
CN204959767U CN201520706458.9U CN201520706458U CN204959767U CN 204959767 U CN204959767 U CN 204959767U CN 201520706458 U CN201520706458 U CN 201520706458U CN 204959767 U CN204959767 U CN 204959767U
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China
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shotcrete
expanded metal
steel sheet
metal lath
mesh structure
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CN201520706458.9U
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Inventor
韩勋
李铁男
韩超
赵志文
高松
翟波
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Shenyang Railway Survey Design Consulting Co Ltd
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Shenyang Railway Survey Design Consulting Co Ltd
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Abstract

The utility model relates to a novel suspended net shotcrete structure between stake. Be equipped with a plurality of drilling bored concrete piles and a plurality of steel sheet net, the outer fringe closed -up surface laminating of expansion bolts and backing plate and a plurality of drilling bored concrete piles is crossed by every steel sheet netcom, is equipped with overlap joint portion around the steel sheet net, and a plurality of steel sheet netcoms cross overlap joint portion and link together, adopts the wet blasting machine to carry out the shotcrete construction to the suspended net facade, finally forms a steady job face. The utility model discloses the volume of collapsing of at first reducible sand to reduce the whitewashing volume, guarantee the progress of construction. Secondly, the steel sheet net is low with the steel volume to can reduce construction cost.

Description

Shotcrete with mesh structure between a kind of Novel pile
Technical field
The utility model belongs to city and to have stable political situation highway construction field, relates generally to a kind of structure being applicable to foundation pit supporting pile m esh-hanging sprayed concrete.
Background technology
Along with current urban construction more and more densification, and building operations is to the raising of safe attention degree, and the application of pattern foundation pit supporting structure is also more and more extensive, and form is more and more diversified.The support form that deep foundation ditch is common: cast-in-place concrete pile+anchor cable, cast-in-place concrete pile+inner support, diaphragm wall, soil nail wall etc., wherein the use of cast-in-place concrete pile is the most extensive.
In deep foundation pit construction, between grout pile, need m esh-hanging sprayed concrete, when inter-pile soil is fine sand, due to soil excavation or the reason such as spray pressure is large, easily causes the soil body to drop and form cavity, cause sprayed mortar amount to increase doubly a lot of, and easily come off.Timely sandbag is wanted to fill up when general processing method is little cavity, if cavity is comparatively large, slip casting of punching after corresponding stake.But these all can cause construction works amount to increase and can schedule delays.So best bet is exactly just the amount of caving in of the soil body controlled in the early stage of sprayed mortar when running into this kind of stratum, thus the progress of construction can be ensured, and the increase of concrete ejection amount can be avoided.
Summary of the invention
For solving the technical problem of above-mentioned existence, the utility model provides shotcrete with mesh structure between a kind of Novel pile reducing the amount of caving in of sand.
The technical solution adopted in the utility model is: shotcrete with mesh structure between a kind of Novel pile, be provided with some bored piles and some expanded metal laths, every sheet expanded metal lath is fitted tightly by the outer fringe surface of expansion bolt and backing plate and some bored piles, the surrounding of expanded metal lath is provided with clinch, and some expanded metal laths are linked together by clinch.
Shotcrete with mesh structure between above-mentioned a kind of Novel pile, the distance H between described some bored piles 1for 300-500mm.
Shotcrete with mesh structure between above-mentioned a kind of Novel pile, described expanded metal lath is provided with some meshes.
Shotcrete with mesh structure between above-mentioned a kind of Novel pile, described expanded metal lath thickness is 1.0-1.2mm.
Shotcrete with mesh structure between above-mentioned a kind of Novel pile, described some meshes are uniformly distributed in length and breadth on expanded metal lath, and the diameter of mesh is 40-50mm, the distance H between every two adjacent meshes 2for 140-160mm.
Shotcrete with mesh structure between above-mentioned a kind of Novel pile, the both sides of expanded metal lath are provided with shotcrete layer.
Shotcrete with mesh structure between above-mentioned a kind of Novel pile, is provided with waterproofing course outside the shotcrete layer of expanded metal lath away from bored pile side.
The beneficial effects of the utility model are:
1. the utility model, adopts the expanded metal lath of band mesh, sprayed mortar, thus reduces the amount of caving in of sand.
2. the utility model, expanded metal lath steel using amount is low, thus can lower construction cost.
3. the utility model, steel plate good integrity, is easy to overlap joint, constructs convenient.
4. the utility model, effectively can control the local collapse of the fine sand class soil body by the setting of steel plate, thus reduces whitewashing amount, ensures the progress of construction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the structural representation of the utility model steel plate.
Detailed description of the invention
Shotcrete with mesh structure between a kind of Novel pile of embodiment
As shown in Figure 1-Figure 3, shotcrete with mesh structure between a kind of Novel pile, is made up of some bored piles (1), some expanded metal laths (2), expansion bolt (3), backing plate (4), shotcrete layer (5) and waterproofing course (7).
From the fine sand layer (8) inside foundation ditch, be from inside to outside fine sand layer (8), bored pile (1), shotcrete layer (5), expanded metal lath (2), shotcrete layer and waterproofing course (7) successively.
Distance H between described some bored piles (1) 1for 400mm.
Described expanded metal lath (2) thickness is 1mm, and expanded metal lath (2) is provided with some meshes (6).Described some meshes (6) are uniformly distributed in length and breadth on expanded metal lath (2), and the diameter of mesh (6) is 40-50mm, the distance H between every two adjacent meshes (6) 2for 140-160mm.Every sheet expanded metal lath (2) is fitted tightly with the outer fringe surface of some bored piles (1) by expansion bolt (3) and backing plate (4).The surrounding of expanded metal lath (2) is provided with clinch (2-1), and some expanded metal laths (2) are linked together by clinch (2-1).
Work progress of the present utility model is:
1) set bored pile in deep foundation ditch surrounding, after space enclosing structure is closed, cut pile crown and build Guan Liang.
2) excavation pit, manually clears up between the stake surface be excavated and stake, guarantees that 1mm steel plate net can note close with bored pile.
3) hang 1mm steel plate net (expanded metal lath having mesh, the general form adopting Φ 50150x150), with expansion bolt and backing plate, be fixed in the surface of bored pile.
4) wet-spraying machine is adopted to carry out construction of shotcrete to the facade of linked network.Part concrete enters expanded metal lath, space between bored pile and fine sand layer through mesh, forms the shotcrete layer of inner side.Sprayed mortar segmentation, burst sequence from low to uper part are carried out, and every segment length is no more than 6m.Jet velocity is wanted suitably, to be beneficial to concrete compacting.
5) layering branch applies in-network processing, until carry out next process after being excavated to design elevation.

Claims (7)

1. shotcrete with mesh structure between a Novel pile, it is characterized in that: be provided with some bored piles (1) and some expanded metal laths (2), every sheet expanded metal lath (2) is fitted tightly with the outer fringe surface of some bored piles (1) by expansion bolt (3) and backing plate (4), the surrounding of expanded metal lath (2) is provided with clinch (2-1), and some expanded metal laths (2) are linked together by clinch (2-1).
2. shotcrete with mesh structure between a kind of Novel pile according to claim 1, is characterized in that: the distance H between described some bored piles (1) 1for 300-500mm.
3. shotcrete with mesh structure between a kind of Novel pile according to claim 1, is characterized in that: described expanded metal lath (2) is provided with some meshes (6).
4. shotcrete with mesh structure between a kind of Novel pile according to claim 3, is characterized in that: described expanded metal lath (2) thickness is 1.0-1.2mm.
5. shotcrete with mesh structure between a kind of Novel pile according to claim 4, it is characterized in that: described some meshes (6) are uniformly distributed in length and breadth on expanded metal lath (2), the diameter of mesh (6) is 40-50mm, the distance H between every two adjacent meshes (6) 2for 140-160mm.
6. shotcrete with mesh structure between a kind of Novel pile according to claim 1, is characterized in that: the both sides of expanded metal lath (2) are provided with shotcrete layer (5).
7. shotcrete with mesh structure between a kind of Novel pile according to claim 6, is characterized in that: expanded metal lath (2) is provided with waterproofing course (7) away from outside the shotcrete layer (5) of bored pile (1) side.
CN201520706458.9U 2015-09-10 2015-09-10 Novel suspended net shotcrete structure between stake Active CN204959767U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Publications (1)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105735323A (en) * 2016-03-10 2016-07-06 深圳市市政工程总公司 Shotcrete reverse construction and punching pile combined deep foundation pit retaining structure and construction method thereof
CN105908759A (en) * 2016-06-12 2016-08-31 中国十七冶集团有限公司 Device for reinforcing concrete sprayed in deep foundation pit and construction method
CN106592514A (en) * 2016-12-09 2017-04-26 济南市市政工程有限公司 Construction method of old city riverway piling wall integrated vertical type retaining wall
CN107700490A (en) * 2017-09-12 2018-02-16 中国建筑第八工程局有限公司 Gunite concrete makes up constructing structure and its construction method in advance between the stratum stake of sand ovum
CN108240120A (en) * 2018-03-26 2018-07-03 北京正华建筑设计有限公司 Aging blocks reinforce add-story reconstruction structure
CN108867690A (en) * 2018-09-30 2018-11-23 中冶建工集团有限公司 The reverse construction of peg board barricade of big foundation pit
CN108951644A (en) * 2018-07-04 2018-12-07 北京城建北方集团有限公司 Low field level ground foundation pit supporting system exempts from pile connection construction method
CN110670598A (en) * 2019-07-24 2020-01-10 青岛理工大学 Cold joint treatment structure and method for secant pile construction
CN110984169A (en) * 2019-11-13 2020-04-10 中冶天工集团有限公司 Protective net used between cast-in-place pile piles and installation method thereof
CN111663536A (en) * 2020-06-08 2020-09-15 瑞腾基础工程技术(北京)股份有限公司 Green assembly type vertical protection method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105735323A (en) * 2016-03-10 2016-07-06 深圳市市政工程总公司 Shotcrete reverse construction and punching pile combined deep foundation pit retaining structure and construction method thereof
CN105908759A (en) * 2016-06-12 2016-08-31 中国十七冶集团有限公司 Device for reinforcing concrete sprayed in deep foundation pit and construction method
CN106592514A (en) * 2016-12-09 2017-04-26 济南市市政工程有限公司 Construction method of old city riverway piling wall integrated vertical type retaining wall
CN107700490A (en) * 2017-09-12 2018-02-16 中国建筑第八工程局有限公司 Gunite concrete makes up constructing structure and its construction method in advance between the stratum stake of sand ovum
CN108240120A (en) * 2018-03-26 2018-07-03 北京正华建筑设计有限公司 Aging blocks reinforce add-story reconstruction structure
CN108240120B (en) * 2018-03-26 2023-09-29 北京正华建筑设计有限公司 Old building reinforcing and storey adding reconstruction structure
CN108951644A (en) * 2018-07-04 2018-12-07 北京城建北方集团有限公司 Low field level ground foundation pit supporting system exempts from pile connection construction method
CN108867690A (en) * 2018-09-30 2018-11-23 中冶建工集团有限公司 The reverse construction of peg board barricade of big foundation pit
CN110670598A (en) * 2019-07-24 2020-01-10 青岛理工大学 Cold joint treatment structure and method for secant pile construction
CN110984169A (en) * 2019-11-13 2020-04-10 中冶天工集团有限公司 Protective net used between cast-in-place pile piles and installation method thereof
CN111663536A (en) * 2020-06-08 2020-09-15 瑞腾基础工程技术(北京)股份有限公司 Green assembly type vertical protection method

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