CN110485452A - Isolated footing and its construction method constructed in supporting course - Google Patents

Isolated footing and its construction method constructed in supporting course Download PDF

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Publication number
CN110485452A
CN110485452A CN201910769128.7A CN201910769128A CN110485452A CN 110485452 A CN110485452 A CN 110485452A CN 201910769128 A CN201910769128 A CN 201910769128A CN 110485452 A CN110485452 A CN 110485452A
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CN
China
Prior art keywords
top surface
supporting
cushion block
foundation pit
backbreaking
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CN201910769128.7A
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Chinese (zh)
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CN110485452B (en
Inventor
陈鹏
林志
石鹏
陈波林
何为
陈波
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China Construction Eighth Engineering Division Co Ltd
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China Construction Eighth Engineering Division Co Ltd
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Priority to CN201910769128.7A priority Critical patent/CN110485452B/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures

Abstract

Isolated footing and its construction method the present invention relates to a kind of construction in supporting course, wherein isolated footing includes: and pours to stay to set between the main structure in foundation pit of backbreaking, the surrounding side wall and the corresponding inner sidewall of foundation pit of backbreaking of main structure to be formed with refill spaces;Top surface set on main structure and multiple cushion blocks positioned at corresponding sides edge;It is cast-in-place in multiple levelling cushion blocks on the ground for backbreaking foundation pit corresponding sides edge, the top surface of levelling cushion block and the top surface of cushion block flush;It is filled in the backfill layer that in refill spaces and top surface and the top surface of cushion block flush;For supporting multiple supporting beams of terrace, the opposite end branch of supporting beam is set to cushion block and corresponding levelling cushion block.Using cushion block top surface as reference standard, the cast-in-place levelling cushion block of formation compensates for the deficiency that the ground on the periphery for foundation pit of backbreaking is influenced by excavation without certain level so that supporting beam can be horizontally disposed with.Support terrace is played using supporting beam.

Description

Isolated footing and its construction method constructed in supporting course
Technical field
The present invention relates to the realm of building construction, isolated footing and its construction method of espespecially a kind of construction in supporting course.
Background technique
When building superstructure uses frame structure or single row frame structure structure load-bearing, basis is frequently with rectangular, round Etc. forms isolated footing.Isolated footing is seated on supporting course, the generally middle weathering of supporting course or severely-weathered rock stratum, rock stratum Cutting depth is not easily controlled, and is dug at one and is often taken up a sheet of rock, and phenomenon of backbreaking is generated.When backbreak phenomenon when, The terrace on layer is backfilled around the isolated footing of supporting course positioned at construction easily to settle.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, provide it is a kind of construction in supporting course isolated footing and its Construction method solves the problems, such as that the terrace backfilled on layer around isolated footing in the prior art easily settles.
Realizing the technical solution of above-mentioned purpose is:
The present invention provide it is a kind of construction in the isolated footing of supporting course, pour in excavate in the foundation pit of backbreaking in supporting course In, the isolated footing includes:
It pours in the main structure backbreak in foundation pit, the surrounding side wall of the main structure and the foundation pit pair of backbreaking It stays to set between the inner sidewall answered and is formed with refill spaces;
Top surface set on the main structure and multiple cushion blocks positioned at corresponding sides edge;
It is cast-in-place in multiple levelling cushion blocks on the ground for backbreaking foundation pit corresponding sides edge, the top surface of the levelling cushion block and The top surface of the cushion block flushes;
It is filled in the backfill layer that in the refill spaces and top surface and the top surface of the cushion block flush;And
For supporting multiple supporting beams of terrace, the opposite end branch of the supporting beam is set to the cushion block and corresponding described Levelling cushion block.
The present invention construct in supporting course isolated footing and its construction method the utility model has the advantages that
The present invention utilizes main body knot by the way that multiple cushion blocks are arranged in the top surface of main structure and positioned at the position on corresponding sides edge The horizontally disposed top surface of structure and cushion block as reference standard, on the ground on the foundation pit corresponding sides edge of backbreaking it is cast-in-place formed it is levelling Cushion block, the top surface of levelling cushion block and the top surface of cushion block flush, to may make subsequent construction in the support of cushion block and levelling cushion block Beam can be horizontally disposed with, and compensated for excavate to be formed in the prior art and be backbreak during foundation pit, the ground on the periphery for foundation pit of backbreaking The deficiency influenced by excavation without certain level.By pouring to form multiple supporting beams on cushion block and levelling cushion block, branch is utilized Support beam plays the role of supporting terrace, it is ensured that the stability of terrace is able to solve and is in the prior art directly layed in terrace The problem for be easy to causeing terrace sagging on backfill layer.
The present invention construct in the isolated footing of supporting course further improvement lies in that, further include being filled on the backfill layer And the rear backfill layer between the two neighboring supporting beam, the top surface of top surface and the supporting beam that layer is backfilled after described are neat It is flat.
The present invention construct in the isolated footing of supporting course further improvement lies in that, the backfill layer and it is described after backfill layer For plain soil layer.
The present invention construct in the isolated footing of supporting course further improvement lies in that, the main structure includes:
It pours in the bed course backbreak in foundation pit, the surrounding side wall of the bed course and the corresponding inner wall of the foundation pit of backbreaking Between be formed with the refill spaces;And
It pours in the basal layer on the bed course, the floor space of the basal layer is less than the top area of the bed course.
The present invention provides a kind of construct in the construction method of the isolated footing of supporting course, which comprises
It excavates supporting course and forms foundation pit of backbreaking;
It pours to form main structure in the foundation pit of backbreaking, the surrounding side wall of the main structure and the foundation pit of backbreaking It stays to set between corresponding inner sidewall and is formed with refill spaces;
The main structure top surface and be located at corresponding edge multiple cushion blocks be set;
It pours to form multiple levelling cushion blocks on the ground for backbreaking foundation pit corresponding sides edge, so that the levelling cushion block Top surface and the top surface of the cushion block flush;
It is filled in the refill spaces and forms the backfill layer that the top surface of top surface and the cushion block flushes;And
The multiple supporting beams to be formed for supporting terrace are poured, the opposite end of the supporting beam is propped up respectively set on the cushion block With the corresponding levelling cushion block.
The present invention construct in the isolated footing of supporting course construction method further improvement lies in that, further include at described time The rear backfill layer for setting and being formed between the two neighboring supporting beam, the top surface of the rear backfill layer and the branch are filled out on packing course The top surface of support beam flushes.
The present invention construct in the isolated footing of supporting course construction method further improvement lies in that, poured in foundation pit of backbreaking It builds and to form main structure and include:
Bed course template is provided, by the bed course template be erected on it is described backbreak in foundation pit, four sides of the bed course template The refill spaces are formed between wall and the corresponding inner wall of the foundation pit of backbreaking;
It is enclosed in area in the bed course template and pours to form bed course;
Foundation forms is provided, the foundation forms is erected on the top surface of the bed course and close to corresponding edge;And
It is enclosed in area in the foundation forms and pours basis of formation floor.
The present invention construct in the isolated footing of supporting course construction method further improvement lies in that, pour to be formed for support Multiple supporting beams of terrace, including multiple beam forms are provided, beam forms branch is set to the cushion block and the levelling cushion block, In pouring to form supporting beam on the beam forms.
Detailed description of the invention
Fig. 1 is present invention construction in the floor map of the isolated footing of supporting course.
Fig. 2 is present invention construction in the longitudinal sectional view of the isolated footing of supporting course.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples.
Refering to fig. 1, it is shown that the present invention constructs in the floor map of the isolated footing of supporting course.It is this hair refering to Fig. 2 Bright construction is in the longitudinal sectional view of the isolated footing of supporting course.Referring to figs. 1 and 2, present invention construction is in the only of supporting course Vertical basis is poured in excavation in the foundation pit of backbreaking in supporting course 10, and the construction includes: in the isolated footing of supporting course
It pours in the main structure 20 backbreak in foundation pit, the surrounding side wall of the main structure 20 and the base of backbreaking It cheats to stay to set between corresponding inner sidewall and is formed with refill spaces;
Top surface set on the main structure and multiple cushion blocks 40 positioned at corresponding sides edge;
It is cast-in-place in multiple levelling cushion blocks 41 on the ground for backbreaking foundation pit corresponding sides edge, the top of the levelling cushion block 41 Face and the top surface of the cushion block 40 flush;
It is filled in the backfill layer 30 that in the refill spaces and top surface and the top surface of the cushion block 40 flush;And
For supporting multiple supporting beams 50 of terrace 60, the opposite end branch of the supporting beam 50 is set to the cushion block 40 and right The levelling cushion block 41 answered.
By the way that multiple cushion blocks 40 are arranged in the top surface of main structure 20 and positioned at the position on corresponding sides edge, main structure is utilized 20 and cushion block 40 horizontally disposed top surface as reference standard, cast-in-place formation is looked on the ground on the foundation pit corresponding sides edge of backbreaking Flat gasket 41, the top surface of levelling cushion block 41 and the top surface of cushion block 40 flush, to may make subsequent construction in cushion block 40 and levelling The supporting beam 50 of cushion block 41 can be horizontally disposed with, and compensated for excavate to be formed in the prior art and be backbreak during foundation pit, base of backbreaking The deficiency that the ground on the periphery in hole is influenced by excavation without certain level.
As present invention construction in a better embodiment of the isolated footing of supporting course, the invention also includes being filled at It states on backfill layer 30 and the rear backfill layer positioned at the two neighboring supporting beam 50 between, the top surface of layer and described is backfilled after described The top surface of supporting beam 50 flushes.
By keeping the top surface of the top surface of rear backfill layer and the supporting beam 50 to flush setting, plane is formed, after being convenient for It is continuous to pour to form terrace 60 on this plane.Supporting beam 50 therein can play the role of supporting terrace 60, prevent terrace 60 It sink.The number of supporting beam 50 and position are unlimited, can depending on the needs of practice of construction,
In the present embodiment, the backfill layer 30 and rear backfill layer are plain soil layer.Compaction in layers is returned in backfilling process It fills out, with compacting backfill layer 30 and rear backfill layer, prevents subsequent settlement issues occur.
As present invention construction in a better embodiment of the isolated footing of supporting course, the main structure 20 includes:
It pours in the bed course 21 backbreak in foundation pit, the surrounding side wall of the bed course 21 and the foundation pit of backbreaking are corresponding The refill spaces are formed between inner wall;And
It pours in the basal layer 22 on the bed course 21, the floor space of the basal layer 22 is less than the top surface of the bed course 21 Product.By be arranged bed course 21, make up excavation foundation pit be more than basal layer 22 height part, the thickness of bed course 21 is according to excavation Foundation pit be more than basal layer 22 height depending on.It solves the problems, such as to excavate when excavation pit too deep.
After supporting course 10 excavates and forms foundation pit of backbreaking, the position line of bed course 21, supporting module are released in foundation pit of backbreaking Construction forms the bed course of plain concrete thickening, basal layer 22 of constructing on bed course 21 after the bed course 21 reaches intensity.In this reality It applies in example, the top surface surrounding of bed course 21 is 100mm wider than the bottom surface surrounding of basal layer 22.Facilitate and subsequent erects basis on bed course 21 The template of layer.Supporting beam 50 is reinforced concrete structured beam.
The present invention also provides a kind of constructions in the construction method of the isolated footing of supporting course, which comprises
It excavates supporting course and forms foundation pit of backbreaking;
It pours to form main structure 20 in the foundation pit of backbreaking, the surrounding side wall of the main structure 20 and described backbreak It stays to set between the corresponding inner sidewall of foundation pit and is formed with refill spaces;
The main structure 20 top surface and be located at corresponding edge multiple cushion blocks 40 be set;
It pours to form multiple levelling cushion blocks 41 on the ground for backbreaking foundation pit corresponding sides edge, so that the levelling cushion block 41 top surface and the top surface of the cushion block 40 flush;
It is filled in the refill spaces and forms the backfill layer 30 that the top surface of top surface and the cushion block 40 flushes;And
The multiple supporting beams 50 to be formed for supporting terrace 60 are poured, the opposite end of the supporting beam 50 is propped up respectively set on institute State cushion block 40 and the corresponding levelling cushion block 41.
The invention also includes after filling out on the backfill layer 30 and setting and to be formed between the two neighboring supporting beam 50 Layer is backfilled, the top surface of layer and the top surface of the supporting beam 50 is backfilled after described and flushes.
It to form main structure 20 in being poured in foundation pit of backbreaking and includes:
Bed course template is provided, by the bed course template be erected on it is described backbreak in foundation pit, four sides of the bed course template The refill spaces are formed between wall and the corresponding inner wall of the foundation pit of backbreaking;
It is enclosed in area in the bed course template and pours to form bed course 21;
Foundation forms is provided, the foundation forms is erected on the top surface of the bed course 21 and close to corresponding edge;With And
It is enclosed in area in the foundation forms and pours basis of formation floor 22.
The multiple supporting beams 50 to be formed for supporting terrace are poured, including multiple beam forms are provided, the beam forms is installed It pours to form supporting beam 50 on the cushion block 40 and the levelling cushion block 41, Yu Suoshu beam forms.
In the present embodiment, bed course 21, basal layer 22 and supporting beam 50 are poured by setting up template.
The present invention construct in supporting course isolated footing and its construction method the utility model has the advantages that
The present invention utilizes main body knot by the way that multiple cushion blocks are arranged in the top surface of main structure and positioned at the position on corresponding sides edge The horizontally disposed top surface of structure and cushion block as reference standard, on the ground on the foundation pit corresponding sides edge of backbreaking it is cast-in-place formed it is levelling Cushion block, the top surface of levelling cushion block and the top surface of cushion block flush, to may make subsequent construction in the support of cushion block and levelling cushion block Beam can be horizontally disposed with, and compensated for excavate to be formed in the prior art and be backbreak during foundation pit, the ground on the periphery for foundation pit of backbreaking The deficiency influenced by excavation without certain level.By pouring to form multiple supporting beams on cushion block and levelling cushion block, branch is utilized Support beam plays the role of supporting terrace, it is ensured that the stability of terrace is able to solve and is in the prior art directly layed in terrace The problem for be easy to causeing terrace sagging on backfill layer.
The present invention has been described in detail with reference to the accompanying drawings, those skilled in the art can be according to upper It states and bright many variations example is made to the present invention.Thus, certain details in embodiment should not constitute limitation of the invention, this Invention will be using the range that the appended claims define as protection scope of the present invention.

Claims (8)

1. a kind of construction in the isolated footing of supporting course, is poured in excavation in the foundation pit of backbreaking in supporting course, which is characterized in that The isolated footing includes:
It pours in the main structure backbreak in foundation pit, the surrounding side wall of the main structure and the foundation pit of backbreaking are corresponding It stays to set between inner sidewall and is formed with refill spaces;
Top surface set on the main structure and multiple cushion blocks positioned at corresponding sides edge;
It is cast-in-place in multiple levelling cushion blocks on the ground for backbreaking foundation pit corresponding sides edge, the top surface of the levelling cushion block and described The top surface of cushion block flushes;
It is filled in the backfill layer that in the refill spaces and top surface and the top surface of the cushion block flush;And
For supporting multiple supporting beams of terrace, the opposite end branch of the supporting beam is set to the cushion block and corresponding described levelling Cushion block.
2. construction as described in claim 1 is in the isolated footing of supporting course, which is characterized in that
Further include being filled on the backfill layer and the rear backfill layer between the two neighboring supporting beam, it is described after backfill The top surface of layer and the top surface of the supporting beam flush.
3. construction as claimed in claim 2 is in the isolated footing of supporting course, which is characterized in that the backfill layer and it is described after time Packing course is plain soil layer.
4. construction as described in claim 1 is in the isolated footing of supporting course, which is characterized in that the main structure includes:
It pours between the bed course backbreak in foundation pit, the surrounding side wall of the bed course and the corresponding inner wall of the foundation pit of backbreaking It is formed with the refill spaces;And
It pours in the basal layer on the bed course, the floor space of the basal layer is less than the top area of the bed course.
5. a kind of construction is in the construction method of the isolated footing of supporting course, which is characterized in that the described method includes:
It excavates supporting course and forms foundation pit of backbreaking;
It pours to form main structure in the foundation pit of backbreaking, the surrounding side wall of the main structure and the foundation pit of backbreaking are corresponding Inner sidewall between stay to set and be formed with refill spaces;
The main structure top surface and be located at corresponding edge multiple cushion blocks be set;
It pours to form multiple levelling cushion blocks on the ground for backbreaking foundation pit corresponding sides edge, so that the top surface of the levelling cushion block It is flushed with the top surface of the cushion block;
It is filled in the refill spaces and forms the backfill layer that the top surface of top surface and the cushion block flushes;And
The multiple supporting beams to be formed for supporting terrace are poured, the opposite end of the supporting beam is propped up respectively set on the cushion block and right The levelling cushion block answered.
6. construction as claimed in claim 5 is in the construction method of the isolated footing of supporting course, which is characterized in that
Further include filling out the rear backfill layer for setting and being formed between the two neighboring supporting beam on the backfill layer, is returned after described The top surface of packing course and the top surface of the supporting beam flush.
7. construction as claimed in claim 5 is in the construction method of the isolated footing of supporting course, which is characterized in that
It to form main structure in being poured in foundation pit of backbreaking and includes:
Bed course template is provided, by the bed course template be erected on it is described backbreak in foundation pit, the surrounding side wall of the bed course template and The refill spaces are formed between the corresponding inner wall of the foundation pit of backbreaking;
It is enclosed in area in the bed course template and pours to form bed course;
Foundation forms is provided, the foundation forms is erected on the top surface of the bed course and close to corresponding edge;And
It is enclosed in area in the foundation forms and pours basis of formation floor.
8. construction as claimed in claim 5 is in the construction method of the isolated footing of supporting course, which is characterized in that
The multiple supporting beams to be formed for supporting terrace are poured, including multiple beam forms are provided, beam forms branch are set to described Cushion block and the levelling cushion block pour to form supporting beam on Yu Suoshu beam forms.
CN201910769128.7A 2019-08-20 2019-08-20 Independent foundation constructed on bearing layer and construction method thereof Active CN110485452B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201910769128.7A CN110485452B (en) 2019-08-20 2019-08-20 Independent foundation constructed on bearing layer and construction method thereof

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CN110485452A true CN110485452A (en) 2019-11-22
CN110485452B CN110485452B (en) 2021-02-26

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047356A (en) * 1975-12-22 1977-09-13 Depirro Mario Louis Post footing form holder and stabilizer system
US4815891A (en) * 1984-10-26 1989-03-28 Thermal Power Corporation Method for repairing an opening formed in and below a section of pavement
JPH09144024A (en) * 1995-11-21 1997-06-03 Koa:Kk Method of formless foundation excavation construction of concrete
JP2002356857A (en) * 2001-05-30 2002-12-13 Takao Takamoto Foundation constructing method
CN101200902A (en) * 2007-12-19 2008-06-18 南通华新建工集团有限公司 Construction method for concrete shaft wall module masonry
CN110004991A (en) * 2019-04-29 2019-07-12 中铁第一勘察设计院集团有限公司 Underground structure anti-floating system and construction method based on raised type tangs plate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047356A (en) * 1975-12-22 1977-09-13 Depirro Mario Louis Post footing form holder and stabilizer system
US4815891A (en) * 1984-10-26 1989-03-28 Thermal Power Corporation Method for repairing an opening formed in and below a section of pavement
JPH09144024A (en) * 1995-11-21 1997-06-03 Koa:Kk Method of formless foundation excavation construction of concrete
JP2002356857A (en) * 2001-05-30 2002-12-13 Takao Takamoto Foundation constructing method
CN101200902A (en) * 2007-12-19 2008-06-18 南通华新建工集团有限公司 Construction method for concrete shaft wall module masonry
CN110004991A (en) * 2019-04-29 2019-07-12 中铁第一勘察设计院集团有限公司 Underground structure anti-floating system and construction method based on raised type tangs plate

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