CN106149751A - Utilize the method that quick lime brick quarrel compaction pile reinforces building construction ground - Google Patents
Utilize the method that quick lime brick quarrel compaction pile reinforces building construction ground Download PDFInfo
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- CN106149751A CN106149751A CN201510281705.XA CN201510281705A CN106149751A CN 106149751 A CN106149751 A CN 106149751A CN 201510281705 A CN201510281705 A CN 201510281705A CN 106149751 A CN106149751 A CN 106149751A
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Abstract
nullThe present invention relates to a kind of reinforced construction method that building construction basement process is taked,Particularly relate to a kind of method utilizing quick lime brick quarrel compaction pile to reinforce building construction ground,Use quick lime、Brick is cut、Soil、Water mud as a raw material,Pour in the stake holes of ground,Stake holes uses impact holing,The brick quarrel compacting of stake end,Employing technique is: preparation of construction → the construction line-putting → Dewatering → impact holing → layering perfusion → compacting is bound,Cloth hole around basis,Impact holing is bored with impact,In pore forming process, inter-pile soil obtains compacted,Quick lime、Brick is cut、Soil、After cement raw material mixing,Squeeze in foundation soil stake holes,Quick lime imbibition makes inter-pile soil generation secondary compaction effect,The brick quarrel compacting of stake end,Brick has been cut tough aggregate effect,Make pile body the tallest and the most straight,The intensity of foundation soil can be effectively increased,Improve bearing capacity of foundation slab,Improve the uniformity of foundation soil,Prevent foundation because of unbalance stress generation sedimentation and deformation,There is cost low,Non-environmental-pollution,Can the reduction of erection time.
Description
Technical field
The invention belongs to stiffening basic ground technical field, relate to a kind of reinforced construction method that building construction basement process is taked, particularly relate to a kind of method utilizing quick lime brick quarrel compaction pile to reinforce building construction ground.
Background technology
The concrete filling pile of building foundation treatment many employings for many years, cement mixing method, but these prior aries generally have a disadvantage in that 1, construction costs is higher.The foundation cost of the most general 6 layers of residential building uses 80 yuan/m2 of concrete filling pile foundation cost as bearing capacity fak=80~l00KPa;Use 45 yuan/m2 of cement mixing method foundation cost, and use quick lime brick quarrel compaction pile natural foundation cost only 30 yuan/m2;The visible present invention can effectively reduce cost and ensure again construction quality.2, construction speed is slow.Plant equipment owing to using in the prior art is huge and heavy, and the duration is longer, can not accomplish maneuverability, and also limited by place, water, electricity, fuel etc., so construction speed is under some influence during construction.3, pollute environment, have noise.Strong vibrations and noise, mud outward transport and stacking, the daily life of the masses around is impacted, there is sound pollution, environmental pollution and the phenomenon that disturbs residents.4, pile quality is by a definite limitation.Tradition bored concrete pile, treatment process of composite foundation, how based on frictional force, affected by subsoil water, soil layer, pile-formation process etc. during construction, is easily generated the qualitative problems of construction such as necking down, broken pile, concrete isolates, sediment is blocked up.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art to provide a kind of intensity that can be effectively increased foundation soil, improve bearing capacity of foundation slab, improve the uniformity of foundation soil, prevent foundation because of the method utilizing quick lime brick quarrel compaction pile to reinforce building construction ground of unbalance stress generation sedimentation and deformation.
The object of the present invention is achieved like this: a kind of method utilizing quick lime brick quarrel compaction pile to reinforce building construction ground, it is characterized in that: use quick lime, brick quarrel, soil, water mud as a raw material, pour in the stake holes of ground, stake holes uses impact holing, the brick quarrel compacting of stake end, use following technological process: preparation of construction → the construction line-putting → Dewatering → impact holing → layering perfusion → compacting is bound, and specifically comprises the following steps that
Step 1) preparation of construction: get all the raw material ready, gets all the construction equipment ready: 50 type percussive drills, Luoyang Spade, tamping apparatus, hammer ram, water flowing, energising;
Step 2) the construction line-putting: arrange by square, quincunx or equilateral triangle;
Step 3) Dewatering: for ensureing pore-forming and pile quality, should first reduce the water level of job location before construction;
Step 4) impact holing: by the stake position put well with 50 type percussive drills, or narrow space cannot become stake holes with Luoyang Spade during mechanical execution, after first periphery in the middle of;
Step 5) layering is filled in: stake footpath and the degree of depth start to fill in after meeting design requirement, and in order to ensure bearing capacity of pile tip, stake end first fills out the queen closer that 30 cm are thick, rams 20--30 time with hammer, hammer lifting height 80-100cm;After queen closer all enters around in soil, then fill out the brickbat quarrel of 20 cm, ram l5-20 time;After stake end compacting, mix is poured in stake holes, spread thickness 30cm, ram l5-20 time, hammer lifting height 80-100cm;The preparation part by weight of mix is: in stake holes more than level of ground water, and mix uses quick lime brick quarrel soil=1 l 2, and in stake holes below level of ground water, mix uses lime water adobe quarrel soil=1 0.5 13;
Step 6) compacting is bound: binding and be filled to ground sealing of hole with element soil layering rammer, thickness is no less than 30 cm.
In step 5), in hole before filler, should tamp at the bottom of hole, and the diameter of stake holes, the degree of depth and perpendicularity should be surveyed sample;The perpendicularity deviation of stake holes is not more than 1.5%;Should be layered in hole by design requirement through after the assay was approved and insert the mix worked good.
Carrying out from 1-2 hole, inner or middle outside interval when full wafer processes, heavy construction is taked section construction, when Local treatment, outside in 1-2 hole, interval is carried out;Large area is met process equilateral triangle, isolated foundation or strip footing square, rectangle or isosceles triangle are arranged.
Also need to carry out foundation detection and inspection after the above step is finished: specifically use excavation inspection, static sounding or standard penetration test (SPT), light sounding, vertical compression load testing method to test according to engine request and local experience, and answer incorporation engineering test and observational data overall merit consolidation effect;Construction detects and within 7-10 days, carries out after construction.
When using static sounding or standard penetration test (SPT), light sounding detection, detection position is pile center and inter-pile soil, and every 2 is one group, and detection group number should meet design requirement;Load test should meet finder charge condition at strength of the mixing pile, and carries out after 28 days at pile.
The present invention is cloth hole around basis, impact holing is bored with impact, in pore forming process, inter-pile soil obtains compacted, then quick lime, brick is cut, soil, the raw materials such as cement, according to a certain percentage after mixing, after squeezing in the stake holes of foundation soil, quick lime imbibition makes inter-pile soil generation secondary compaction effect, the brick quarrel compacting of stake end, brick has been cut tough aggregate effect, make pile body the tallest and the most straight, so formed by foundation soil and the artificial foundation of reinforcement shared load, the intensity of foundation soil can be effectively increased, improve bearing capacity of foundation slab, improve the uniformity of foundation soil, prevent foundation because of unbalance stress generation sedimentation and deformation.There is cost low, non-environmental-pollution, can the reduction of erection time.There is good economic benefit, social benefit and environmental benefit, have bigger development space in China's Construction of Medium And Small City development, the particularly process to tier building building lot with application.
Detailed description of the invention
The concrete grammar of the present invention is cloth hole around proposed building basis, impact holing is bored with impact, in pore forming process, inter-pile soil obtains compacted, then quick lime, brick is cut, soil, the raw materials such as cement, according to a certain percentage after mixing, after squeezing in the stake holes of foundation soil, quick lime imbibition makes inter-pile soil generation secondary compaction effect, the brick quarrel compacting of stake end, brick has been cut tough aggregate effect, make pile body the tallest and the most straight, so formed by foundation soil and the artificial foundation of reinforcement shared load, the intensity of foundation soil can be effectively increased, improve bearing capacity of foundation slab, improve the uniformity of foundation soil, prevent foundation because of unbalance stress generation sedimentation and deformation.
The quick lime brick quarrel compaction pile composite foundation of the present invention is called for short compacted quicklime pile, it is to use quick lime, brick quarrel, soil, water mud as a raw material, according to a certain percentage after mixing, pour in the stake holes of ground, stake holes uses impact holing, this machinery is the 50 type rigs that Jiamusi produces, the brick quarrel compacting of stake end, owing to using impact holing, inter-pile soil has obtained compacted, quick lime imbibition makes inter-pile soil secondary compaction, and brick has been cut tough aggregate effect, makes pile body the tallest and the most straight formed by foundation soil and the artificial foundation of reinforcement shared load.Intensity and the uniformity of ground can be effectively increased, improve foundation bearing capacity, thus meet the requirement of basic engineering.Use following technological process: preparation of construction → the construction line-putting → Dewatering (when level of ground water is shallower) → impact holing → layering perfusion → compacting is bound.It is embodied as step as follows:
Step 1) preparation of construction: 1. get all the raw material ready, is processed stand-by by indices requirement.2. construction equipment is got all the ready: 50 type percussive drills, Luoyang Spade, tamping apparatus, hammer ram (weight about 12.5kg) etc..3. water flowing, energising.
Step 2) the construction line-putting: arrange by square, quincunx or equilateral triangle;
Step 3) Dewatering: for ensureing pore-forming and pile quality, should first reduce the water level of job location before construction;If therefore level of ground water is shallower, for ensureing pore-forming and pile quality, should first precipitation before construction.
Step 4) impact holing: by the stake position put well with 50 type percussive drills, or narrow space cannot become stake holes with Luoyang Spade during mechanical execution, after first periphery in the middle of;
Step 5) layering is filled in: stake footpath and the degree of depth start to fill in after meeting design requirement,
1. in order to ensure bearing capacity of pile tip, stake end first fills out the queen closer that 30 cm are thick, rams 20--30 time with hammer, hammer lifting height 80-100cm;
2. after queen closer all enters around in soil, then fill out the brickbat quarrel of 20 cm, ram l5-20 time;
3., after the compacting of stake end, mix is poured in stake holes, spread thickness 30cm, ram l5-20 time, hammer lifting height 80-100cm;The preparation part by weight of mix is: in stake holes more than level of ground water, and mix uses quick lime brick quarrel soil=1 l 2, and in stake holes below level of ground water, mix uses lime water adobe quarrel soil=1 0.5 13;
Step 6) compacting is bound: layering hammer compacting, to designed elevation, is then bound, and binds and is filled to ground sealing of hole with element soil layering rammer, and thickness is no less than 30 cm.
In step 5), in hole before filler, should tamp at the bottom of hole, and the diameter of stake holes, the degree of depth and perpendicularity should be surveyed sample;The perpendicularity deviation of stake holes is not more than 1.5%;Should be layered in hole by design requirement through after the assay was approved and insert the mix worked good.
Carrying out from 1-2 hole, inner or middle outside interval when full wafer processes, heavy construction is taked section construction, when Local treatment, outside in 1-2 hole, interval is carried out;Large area is met process equilateral triangle, isolated foundation or strip footing square, rectangle or isosceles triangle are arranged.
Also need to carry out foundation detection and inspection after the above step is finished: specifically use excavation inspection, static sounding or standard penetration test (SPT), light sounding, vertical compression load testing method to test according to engine request and local experience, and answer incorporation engineering test and observational data overall merit consolidation effect;Construction detects and within 7-10 days, carries out after construction.
When using static sounding or standard penetration test (SPT), light sounding detection, detection position is pile center and inter-pile soil, and every 2 is one group, and detection group number should meet design requirement;Load test should meet finder charge condition at strength of the mixing pile, and carries out after 28 days at pile.
Construction point and points for attention:
1, construction point:
1. in order to ensure bearing capacity of pile tip, stake end first fills out the queen closer that 30cm is thick, rams 20--30 time with hammer, hammer lifting height 80~1 00cm;
If 2. queen closer all enters around in soil, then fill out the brickbat quarrel of 20cm, ram l5--20 time;
3. after the compacting of stake end, by mix (quick lime by a certain percentage of the weight: brick is cut: soil=1:l:2 and quick lime: cement: brick is cut: soil=1:0.5:1:3 (being mainly used under water)) insert in hole, paving thickness about 30cm, rams l5---20 time, hammer lifting height 80--100cm.
4. binding and be filled to ground sealing of hole with element soil layering rammer, thickness is no less than 30cm.
2, points for attention:
1. in hole before filler, should tamp at the bottom of hole, and the diameter of stake holes, the degree of depth and perpendicularity should be surveyed sample;
2. the perpendicularity deviation of stake holes is not preferably greater than 1.5%;
3. should be layered in hole by design requirement through after the assay was approved and insert the mix worked good;
4. outwards carry out in 1-2 hole, interval from inner (or middle) when full wafer process is appropriate to the occasion.Heavy construction can be taked section construction, and when Local treatment, the most outside in 1-2 hole, interval is carried out;
5. meet to process to large area and preferably use equilateral triangle, isolated foundation or strip footing are preferably used square, rectangle or isosceles triangle arrange.
3, test pile:
3.1 detection of compound foundations and inspection can use the methods such as excavation inspection, static sounding or Standard piercing, light sounding, vertical compression load test to test according to engine request and local experience, and answer incorporation engineering test and observational data overall merit consolidation effect.Construction detection is preferably carried out after construction for 7-10 days.
3.2 when using static soundings or standard penetration test (SPT), light sounding detection, and detection position should be pile center and inter-pile soil, should every 2 be one group.Detection group number should meet design requirement.
3.3 load tests should meet finder charge condition at strength of the mixing pile, and carries out after 28 days at pile.Amount detection should meet design requirement.
Claims (5)
1. one kind utilizes the method that quick lime brick quarrel compaction pile reinforces building construction ground, it is characterized in that: use quick lime, brick quarrel, soil, water mud as a raw material, pour in the stake holes of ground, stake holes uses impact holing, the brick quarrel compacting of stake end, use following technological process: preparation of construction → the construction line-putting → Dewatering → impact holing → layering perfusion → compacting is bound, and specifically comprises the following steps that
Step 1) preparation of construction: get all the raw material ready, gets all the construction equipment ready: 50 type percussive drills, Luoyang Spade, tamping apparatus, hammer ram, water flowing, energising;
Step 2) the construction line-putting: arrange by square, quincunx or equilateral triangle;
Step 3) Dewatering: for ensureing pore-forming and pile quality, should first reduce the water level of job location before construction;
Step 4) impact holing: by the stake position put well with 50 type percussive drills, or narrow space cannot become stake holes with Luoyang Spade during mechanical execution, after first periphery in the middle of;
Step 5) layering is filled in: stake footpath and the degree of depth start to fill in after meeting design requirement, and in order to ensure bearing capacity of pile tip, stake end first fills out the queen closer that 30 cm are thick, rams 20--30 time with hammer, hammer lifting height 80-100cm;After queen closer all enters around in soil, then fill out the brickbat quarrel of 20 cm, ram l5-20 time;After stake end compacting, mix is poured in stake holes, spread thickness 30cm, ram l5-20 time, hammer lifting height 80-100cm;The preparation part by weight of mix is: in stake holes more than level of ground water, and mix uses quick lime brick quarrel soil=1 l 2, and in stake holes below level of ground water, mix uses lime water adobe quarrel soil=1 0.5 13;
Step 6) compacting is bound: binding and be filled to ground sealing of hole with element soil layering rammer, thickness is no less than 30 cm.
The method utilizing quick lime brick quarrel compaction pile to reinforce building construction ground the most according to claim 1, it is characterised in that: in step 5), in hole before filler, should tamp at the bottom of hole, and the diameter of stake holes, the degree of depth and perpendicularity should be surveyed sample;The perpendicularity deviation of stake holes is not more than 1.5%;Should be layered in hole by design requirement through after the assay was approved and insert the mix worked good.
The method utilizing quick lime brick quarrel compaction pile to reinforce building construction ground the most according to claim 1, it is characterized in that: carry out from 1-2 hole, inner or middle outside interval when full wafer processes, heavy construction is taked section construction, and when Local treatment, outside in 1-2 hole, interval is carried out;Large area is met process equilateral triangle, isolated foundation or strip footing square, rectangle or isosceles triangle are arranged.
The method utilizing quick lime brick quarrel compaction pile to reinforce building construction ground the most according to claim 1, it is characterized in that: also need to carry out foundation detection and inspection after the above step is finished: specifically use excavation inspection, static sounding or standard penetration test (SPT), light sounding, vertical compression load testing method to test according to engine request and local experience, and answer incorporation engineering test and observational data overall merit consolidation effect;Construction detects and within 7-10 days, carries out after construction.
The method utilizing quick lime brick quarrel compaction pile to reinforce building construction ground the most according to claim 4, it is characterized in that: when using static sounding or standard penetration test (SPT), light sounding detection, detection position is pile center and inter-pile soil, every 2 is one group, and detection group number should meet design requirement;Load test should meet finder charge condition at strength of the mixing pile, and carries out after 28 days at pile.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108104106A (en) * | 2016-11-24 | 2018-06-01 | 神翼航空器科技(天津)有限公司 | Existing building essential bearing stratum reinforcement |
CN111140199A (en) * | 2019-12-25 | 2020-05-12 | 北京正和恒基滨水生态环境治理股份有限公司 | Shaft plugging method |
CN112609667A (en) * | 2020-12-22 | 2021-04-06 | 中铁三局集团有限公司 | Construction method for reinforcing earthwork compaction degree of lime-sand pile in small-span cross beam |
CN113174951A (en) * | 2021-04-30 | 2021-07-27 | 福建永宏建设工程有限公司 | Construction device and method for reinforcing soft soil roadbed by self-expansion compaction pile with high bearing capacity |
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CN101798809A (en) * | 2010-03-16 | 2010-08-11 | 朱建新 | Non-borrow composite underreamed pile constructing method |
CN102733376A (en) * | 2012-07-02 | 2012-10-17 | 朱建新 | Composite pile and construction method thereof |
CN102864774A (en) * | 2012-10-10 | 2013-01-09 | 江苏南通六建建设集团有限公司 | Shrinkage treatment construction method for composite foundation- lime soil compaction piles |
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Patent Citations (4)
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AU677908B2 (en) * | 1994-06-24 | 1997-05-08 | Qc Bricks Pty Ltd | Brick wall on piers |
CN101798809A (en) * | 2010-03-16 | 2010-08-11 | 朱建新 | Non-borrow composite underreamed pile constructing method |
CN102733376A (en) * | 2012-07-02 | 2012-10-17 | 朱建新 | Composite pile and construction method thereof |
CN102864774A (en) * | 2012-10-10 | 2013-01-09 | 江苏南通六建建设集团有限公司 | Shrinkage treatment construction method for composite foundation- lime soil compaction piles |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108104106A (en) * | 2016-11-24 | 2018-06-01 | 神翼航空器科技(天津)有限公司 | Existing building essential bearing stratum reinforcement |
CN111140199A (en) * | 2019-12-25 | 2020-05-12 | 北京正和恒基滨水生态环境治理股份有限公司 | Shaft plugging method |
CN112609667A (en) * | 2020-12-22 | 2021-04-06 | 中铁三局集团有限公司 | Construction method for reinforcing earthwork compaction degree of lime-sand pile in small-span cross beam |
CN113174951A (en) * | 2021-04-30 | 2021-07-27 | 福建永宏建设工程有限公司 | Construction device and method for reinforcing soft soil roadbed by self-expansion compaction pile with high bearing capacity |
CN113174951B (en) * | 2021-04-30 | 2022-06-14 | 福建永宏建设工程有限公司 | Construction device and method for reinforcing soft soil roadbed by self-expansion compaction pile with high bearing capacity |
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