CN107653894A - A kind of construction technology that foundation platform is made by precast concrete - Google Patents

A kind of construction technology that foundation platform is made by precast concrete Download PDF

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Publication number
CN107653894A
CN107653894A CN201710612988.0A CN201710612988A CN107653894A CN 107653894 A CN107653894 A CN 107653894A CN 201710612988 A CN201710612988 A CN 201710612988A CN 107653894 A CN107653894 A CN 107653894A
Authority
CN
China
Prior art keywords
cushion cap
precast concrete
foundation
construction
moulding bed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710612988.0A
Other languages
Chinese (zh)
Inventor
杜耀进
徐伟平
傅晓羽
金探宇
魏锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Construction Engineering Group Co Ltd
Original Assignee
Zhejiang Construction Engineering Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Construction Engineering Group Co Ltd filed Critical Zhejiang Construction Engineering Group Co Ltd
Priority to CN201710612988.0A priority Critical patent/CN107653894A/en
Publication of CN107653894A publication Critical patent/CN107653894A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/10Deep foundations
    • E02D27/12Pile foundations
    • E02D27/14Pile framings, i.e. piles assembled to form the substructure

Abstract

The present invention relates to technical field of building construction, and in particular to a kind of construction technology that foundation platform is made by precast concrete.A kind of construction technology that foundation platform is made by precast concrete, comprises the following steps:Precast concrete is processed in batch production, surveying setting-out, earth excavation, is poured cushion cap or ground beam, is put loose tool line, installs prefabricated moulding bed plate, cushion cap or the backfill of ground beam sides are smooth, and check of foundation subsoil pours blinding layer;The technique substitutes this construction method of brick mold using precast concrete, shortens the duration, improves speed of application, improve work efficiency, saved cost, green construction, and achieves good economic benefit.

Description

A kind of construction technology that foundation platform is made by precast concrete
Technical field
The present invention relates to technical field of building construction, and in particular to a kind of construction that foundation platform is made by precast concrete Technique.
Background technology
Nowadays among engineering process in itself, foundation engineering is as most important link, in the quality and progress of engineering Very important effect is played in control process.Therefore how preferably to lift the quality of foundation engineering and speed up the work simultaneously It is capable of the cost-effective of maximum, is a problem in engineering construction.
Brick mold is to replace plank sheathing or steel form to be mainly used in foundation beam, hold come a kind of method of formwork with brick setting The side forms such as platform, elevator, catch pit are not easy the position removed, and are a kind of traditional construction technologies.But brick mold builds work by laying bricks or stones Journey amount is larger, and input manpower is more, work efficiency is low, speed of application is slow, cost is higher.
The content of the invention
The invention aims to solve the above problems, there is provided a kind of construction that foundation platform is made by precast concrete Technique is specially a kind of by the directly assembled making foundation platform of precast concrete(Grade beam)Construction technology.It can effectively be prevented The problems such as brick mold that backfill is extruded and occurred is collapsed, deformed, crack occurs, and it is fast to shorten duration, speed of application, work efficiency Height, cost-effective, green construction, achieve good economic benefit.
In order to reach foregoing invention purpose, the present invention uses following technical scheme:
A kind of construction technology that foundation platform is made by precast concrete, comprises the following steps:Precast concrete is processed in batch production, is surveyed Unwrapping wire is measured, earth excavation, cushion cap or ground beam is poured, puts loose tool line, prefabricated moulding bed plate is installed, cushion cap or the backfill of ground beam sides are flat Whole, check of foundation subsoil pours blinding layer;
Precast concrete is processed in batch production, that is, processes prefabricated moulding bed plate;
Earth excavation, more than mechanical earth excavation to cushion cap bottom 200 ㎜ are artificial clear native, smooth;Foundation ditch finishing soil after excavation Bar dowel head is stamped on face, as bed course position and thickness control point;
Pour cushion cap or ground beam, the foundation ditch or groove of cushion cap or grade beam excavate and check of foundation subsoil after, construction bearing platform and grade beam heelpiece Layer, bed course side extends out 100mm than cushion cap and grade beam sideline;
Loose tool line is put, after blinding concrete intensity reaches 1.5Mpa, upper people's surveying setting-out, prefabricated moulding bed plate is ejected with ink fountain and installs Line, installation control line, cushion cap or grade beam axis;
Prefabricated moulding bed plate is installed, specially arranged sheet material by live length, short slab is cut using portable cutting machine, under plate mouth with connect Cement mortar seat slurry is laid at head, highly more than 0.6m or length is more than 3.0m and sets fourth plate, and the upper and lower fissure of displacement, fourth in lower floor Plate termination is blocked using concrete, and concrete prefabricated board both sides are fixed using bar dowel head and prevent from shifting, and seam is pasted grid and prevented Split band;The height of prefabricated moulding bed plate is lower 2cm than depth of beam;
(7)Cushion cap or the backfill of ground beam sides are smooth;With 2 between prefabricated moulding bed plate and side slope:8 dirt are filled, compaction in layers,
(8)Check of foundation subsoil pours blinding layer.
Preferably, when pouring cushion cap bed course, positioning hole, position of the positioning hole along prefabricated moulding bed plate are reserved on cushion cap bedding plane Put and be uniformly distributed, and be two row.
Preferably, the precast concrete material size is 3 × 0.6 × 0.09m.
Preferably, work technique is applied to the construction at the position such as foundation beam, cushion cap, catch pit in architectural engineering.
Preferably, the height at the position such as the foundation beam, cushion cap, catch pit is less than or equal to 1.2m.
Compared with prior art, beneficial effect is the present invention:
This construction method of brick mold is substituted using precast concrete, the duration is shortened, improves speed of application, improve work efficiency, Cost, green construction have been saved, and has achieved good economic benefit.
Specifically, substantial amounts of construction brick and cement have been saved, energy-conserving and environment-protective, and by shaping sheet material assembling i.e. dress i.e. With, without waiting for masonry cement solidify, shorten construction period.By reinforcing on the outside of brick mold, effectively prevent because backfill is squeezed The problems such as brick mold pressed and occurred is collapsed, deformed, crack occurs.Assembling between splice plate is rapid and firm, saves a large amount of Engineering time.
Brief description of the drawings
Fig. 1-4 is that the precast concrete of the present invention makes the construction technological process figure of foundation platform or grade beam;
Fig. 5-6 is that the precast concrete of the present invention makes the reinforcing joint detail drawing of foundation platform or grade beam.
In figure:1 cushion cap or ground beam, 2 prefabricated moulding bed plates.
Embodiment
Explanation is further described to technical scheme below by specific embodiment.
If without specified otherwise, the raw material employed in embodiments of the invention is raw material commonly used in the art, is implemented Method employed in example, it is the conventional method of this area.
Embodiment:
A kind of construction technology that foundation platform is made by precast concrete, comprises the following steps:Precast concrete is processed in batch production, is surveyed Unwrapping wire is measured, earth excavation, cushion cap or ground beam is poured, puts loose tool line, prefabricated moulding bed plate is installed, cushion cap or the backfill of ground beam sides are flat Whole, check of foundation subsoil pours blinding layer;
Material:
According to material planning and job site scheduling situation, be equipped with enough concrete prefabricated boards and sand, lime, cement, The materials such as steel nail, steel wire rope, wooden wedge.
Plant:
Portable sheet cutting machine, electric saw for woodworking, electric hand drill, hophornbeam hammer, horizon rule, steel tape, cable inlet bracket, line pendant, iron are smeared Son, sieve, trolley etc..
Cement:
Using No. 32.5 Portland cements, cement must not make moist caking.
Sand:
Middle sand, should cross the sieve in 5mm apertures, and clay content cannot be greater than 5%.
Water:
Using running water.
Mortar:
Mortar strength is used as M7.5(Antifreezing agent is mixed in winter construction).
Material of marching into the arena must have product certificate and test report, and undesirable material is forbidden to march into the arena, prefabricated board It can just be dispatched from the factory after reaching curing age, prefabricated moulding bed plate handling are steady, avoid colliding.
Cement masonry mortar carries out live mixing, and with using, mortar should have good workability and water-retaining property, cement Masonry mortar must after mixing in 3 hours using finishing(When same day temperature degree is more than 30 DEG C, it should make after mixing in 2 hours With finishing), forbid using mortar overnight.
In specific processing step, as shown in figures 1 to 6:
Precast concrete is processed in batch production, that is, processes prefabricated moulding bed plate;The precast concrete material size is 3 × 0.6 × 0.09m.
Earth excavation, more than mechanical earth excavation to cushion cap bottom 200 ㎜ are artificial clear native, smooth;Foundation ditch after excavation is repaiied Bar dowel head is stamped on whole native face, as bed course position and thickness control point;The earth excavation stage is by full-time surveyor to the earthwork Construction carry out technology repetition measurement, forbid to occur backbreaking, disorderly dig phenomenon.
Pour cushion cap or ground beam, the foundation ditch or groove of cushion cap or grade beam excavate and check of foundation subsoil after, construction bearing platform and grade beam Foot mat, bed course side extend out 100mm than cushion cap and grade beam sideline;
Loose tool line is put, after blinding concrete intensity reaches 1.5Mpa, upper people's surveying setting-out, prefabricated moulding bed plate is ejected with ink fountain and installs Line, installation control line, cushion cap or grade beam axis;
Prefabricated moulding bed plate is installed, the erection method of precast concrete is specially to be cut by live length arrangement sheet material, short slab using portable Cutting mill is cut, and Ban Xiakou and joint laying cement mortar seat slurry, highly more than 0.6m or length is more than 3.0m and set in lower floor Fourth plate, and the upper and lower fissure of displacement, fourth plate termination are blocked using concrete, and concrete prefabricated board both sides are fixed using bar dowel head and prevented Displacement, seam paste grid Cracking-proof belt, as seen in figs. 5-6;The height of prefabricated moulding bed plate is lower 2cm than depth of beam;
Cushion cap or the backfill of ground beam sides are smooth;With 2 between prefabricated moulding bed plate and side slope:8 dirt are filled, compaction in layers,
Check of foundation subsoil pours blinding layer.
When pouring cushion cap bed course, positioning hole is reserved on cushion cap bedding plane, position of the positioning hole along prefabricated moulding bed plate is uniformly divided Cloth, and be two row.
The work technique is applied to the construction at the position such as foundation beam, cushion cap, catch pit in architectural engineering, and requires basis The height at the positions such as beam, cushion cap, catch pit is less than or equal to be not more than 1.2m.

Claims (5)

1. a kind of construction technology that foundation platform is made by precast concrete, it is characterised in that comprise the following steps:Batch production adds Work precast concrete, surveying setting-out, earth excavation, pour cushion cap or ground beam, put loose tool line, prefabricated moulding bed plate is installed, cushion cap or Ground beam sides backfill is smooth, and check of foundation subsoil pours blinding layer;
Precast concrete is processed in batch production, that is, processes prefabricated moulding bed plate;
Earth excavation, more than mechanical earth excavation to cushion cap bottom 200 ㎜ are artificial clear native, smooth;Foundation ditch finishing soil after excavation Bar dowel head is stamped on face, as bed course position and thickness control point;
Pour cushion cap or ground beam, the foundation ditch or groove of cushion cap or grade beam excavate and check of foundation subsoil after, construction bearing platform and grade beam heelpiece Layer, bed course side extends out 100mm than cushion cap and grade beam sideline;
Loose tool line is put, after blinding concrete intensity reaches 1.5Mpa, upper people's surveying setting-out, prefabricated moulding bed plate is ejected with ink fountain and installs Line, installation control line, cushion cap or grade beam axis;
Prefabricated moulding bed plate is installed, specially arranged sheet material by live length, short slab is cut using portable cutting machine, under plate mouth with connect Cement mortar seat slurry is laid at head, highly more than 0.6m or length is more than 3.0m and sets fourth plate, and the upper and lower fissure of displacement, fourth in lower floor Plate termination is blocked using concrete, and concrete prefabricated board both sides are fixed using bar dowel head and prevent from shifting, and seam is pasted grid and prevented Split band;The height of prefabricated moulding bed plate is lower 2cm than depth of beam;
(7)Cushion cap or the backfill of ground beam sides are smooth;With 2 between prefabricated moulding bed plate and side slope:8 dirt are filled, compaction in layers,
(8)Check of foundation subsoil pours blinding layer.
2. a kind of construction technology that foundation platform is made by precast concrete according to claim 1, it is characterised in that pour During cushion cap bed course, positioning hole is reserved on cushion cap bedding plane, position of the positioning hole along prefabricated moulding bed plate is uniformly distributed, and is two Row.
A kind of 3. construction technology that foundation platform is made by precast concrete according to claim 1, it is characterised in that institute It is 3 × 0.6 × 0.09m to state precast concrete material size.
A kind of 4. construction technology that foundation platform is made by precast concrete according to claim 1, it is characterised in that work Technique is applied to the construction at the position such as foundation beam, cushion cap, catch pit in architectural engineering.
A kind of 5. construction technology that foundation platform is made by precast concrete according to claim 4, it is characterised in that institute The height for stating the positions such as foundation beam, cushion cap, catch pit is less than or equal to 1.2m.
CN201710612988.0A 2017-07-25 2017-07-25 A kind of construction technology that foundation platform is made by precast concrete Pending CN107653894A (en)

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Application Number Priority Date Filing Date Title
CN201710612988.0A CN107653894A (en) 2017-07-25 2017-07-25 A kind of construction technology that foundation platform is made by precast concrete

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109113067A (en) * 2018-09-20 2019-01-01 上海宝冶建筑工程有限公司 A kind of portable prefabricated board brick fetal membrane installation method
CN109252676A (en) * 2018-11-02 2019-01-22 广东省水利水电第三工程局有限公司 A kind of production technology and its safe construction method of basement cushion cap
CN109267749A (en) * 2018-11-02 2019-01-25 广东省水利水电第三工程局有限公司 A kind of concrete prefabricated template construction technique applied to thick mud layer
CN113417308A (en) * 2021-07-01 2021-09-21 中铁一局集团(广州)建设工程有限公司 Prefabricated wallboard bearing platform tire membrane construction process

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11172709A (en) * 1997-12-09 1999-06-29 Ohbayashi Corp Method for constructing reinforced concrete basement
CN102071698A (en) * 2010-12-24 2011-05-25 浙江中南建设集团有限公司 Construction method of beddings of foundation downward overturn beam and pile cap
CN105369826A (en) * 2015-12-08 2016-03-02 中国一冶集团有限公司 Basement bearing platform side mold construction method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11172709A (en) * 1997-12-09 1999-06-29 Ohbayashi Corp Method for constructing reinforced concrete basement
CN102071698A (en) * 2010-12-24 2011-05-25 浙江中南建设集团有限公司 Construction method of beddings of foundation downward overturn beam and pile cap
CN105369826A (en) * 2015-12-08 2016-03-02 中国一冶集团有限公司 Basement bearing platform side mold construction method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
徐伟平等: "混凝土预制板在基础胎模中的应用", 《工程技术(全文版)》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109113067A (en) * 2018-09-20 2019-01-01 上海宝冶建筑工程有限公司 A kind of portable prefabricated board brick fetal membrane installation method
CN109252676A (en) * 2018-11-02 2019-01-22 广东省水利水电第三工程局有限公司 A kind of production technology and its safe construction method of basement cushion cap
CN109267749A (en) * 2018-11-02 2019-01-25 广东省水利水电第三工程局有限公司 A kind of concrete prefabricated template construction technique applied to thick mud layer
CN113417308A (en) * 2021-07-01 2021-09-21 中铁一局集团(广州)建设工程有限公司 Prefabricated wallboard bearing platform tire membrane construction process

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Application publication date: 20180202