CN104612164A - Reinforced composite envelope structure construction method - Google Patents

Reinforced composite envelope structure construction method Download PDF

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Publication number
CN104612164A
CN104612164A CN201410795100.8A CN201410795100A CN104612164A CN 104612164 A CN104612164 A CN 104612164A CN 201410795100 A CN201410795100 A CN 201410795100A CN 104612164 A CN104612164 A CN 104612164A
Authority
CN
China
Prior art keywords
construction
pile
hole
stiffness composite
shaped steel
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
CN201410795100.8A
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Chinese (zh)
Inventor
白汉民
王冬生
张生雨
邱太刚
杨应昌
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.)
MCC Tiangong Group Corp Ltd
Original Assignee
MCC Tiangong Group Corp 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 MCC Tiangong Group Corp Ltd filed Critical MCC Tiangong Group Corp Ltd
Priority to CN201410795100.8A priority Critical patent/CN104612164A/en
Publication of CN104612164A publication Critical patent/CN104612164A/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
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/02Foundation pits
    • E02D17/04Bordering surfacing or stiffening the sides of foundation pits
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/46Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/18Placing by vibrating

Abstract

The invention provides a reinforced composite envelope structure construction method. The method comprises the steps that firstly, guide hole positions are constructed according to the axis of a reinforced composite envelope structure in a predesigned drawing; secondly, a rotary drilling machine is used for wet-method construction, and guide holes are constructed to the bottom of a stratum unfavorable for stirring pile-forming; thirdly, the guide holes are backfilled with earth materials suitable for stirring pile-forming to the pile tops; fourthly, after backfilling of the guide holes is completed, cement-mixed piles are constructed in situ through a mixing machine; finally, section steel is inserted into the formed cement-mixed piles. By means of the construction method, multiple cement-mixed piles can be formed at a time, and the production efficiency is high. The rotary drilling machine is used for excavating the guide holes to the bottom of the stratum unfavorable for pile-forming according to the pile positions of the reinforced composite envelope structure, the guide holes are filled with the replacing earth materials capable of being used for stirring pile-forming, and then the reinforced composite envelope structure is constructed. The construction method has the advantages that the method is simple and practicable, cost is low, the quality is reliable, the construction efficiency is high, commonly-used construction machinery is fully utilized, and the completed reinforced composite envelope structure is good in water stopping and earth retaining and supporting effect.

Description

A kind of stiffness Composite Enclosure Structure construction method
Technical field
The invention belongs to Construction Technique of Underground Works field, especially relate to a kind of stiffness Composite Enclosure Structure construction method.
Background technology
During the underground construction Construction of Deep Excavation Engineering that particularly groundwater table is higher, often need to perform stiffness Composite Enclosure Structure, play the effect of sealing and retaining support, but when stiffness Composite Enclosure Structure runs into the geological stratification (as gravel layer, hard skerry) that is difficult to pass through and erratic boulder etc. in the depth bounds designed, use conventional triaxial cement mixing pile machine to be difficult to construction and complete.Traditional for the skerry way being difficult to pass through is, single tube high-pressure rotary-spray equipment is adopted its pointwise to be stirred in advance loose, and then stiffness Composite Enclosure Structure of constructing, but the method still cannot be implemented for deep gravel layer and erratic boulder, cause efficiency of construction low, workmanship is poor.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of stiffness Composite Enclosure Structure construction method, makes full use of common construction machinery, and the stiffness Composite Enclosure Structure sealing completed, retaining support are effective, and technique is simple, with low cost, and efficiency of construction is high.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of stiffness Composite Enclosure Structure construction method, comprises the steps:
1. first discharge by stiffness Composite Enclosure Structure axis and draw position, hole;
2. use Spiral digging machine wet work, construction is drawn bottom hole to unfavorable stirring pile stratum;
3. to step 2. in backfill of drawing in hole be applicable to stirring the earth material of pile to stake top;
4. draw after hole backfilled, to construct in position cement mixing pile with Mixing Machine;
5. shaped steel is inserted in the cement mixing pile 4. formed in step.
Further, step is 2. middle adopts " jumping play " construction to draw hole.
Further, step 2. in draw bore dia than will the large 150mm ~ 200mm of the cement mixing pile diameter of construction molding.
Further, step 2. Spiral digging machine wet work time, utilize gas lift reverse circulation machinery coordinate discharge slurries.
Further, step 4. construct cement mixing pile time, remain untreated sandwich portion, by Mixing Machine action of forced stirring at the two adjacent hole interdigits that draw.
Further, described Mixing Machine is three axle mixers.
Further, step 5. Shaped Steel should insert before cement mixing pile initial set.
Further, step 5. in when inserting shaped steel, insert in agitation pile by shaped steel deadweight with crane lifting shaped steel, or make shaped steel sink to putting in place by the vibrating hammer with hydraulic tongs.
The advantage that the present invention has and good effect are: cement mixing pile one-shot forming many, production efficiency is high.Utilize Spiral digging machine to dig to unfavorable pile stratum according under stiffness Composite Enclosure Structure stake position, change the earth material filled out and may be used for stirring pile, and then carry out the construction of stiffness Composite Enclosure Structure.This construction method is simple, with low cost, makes full use of common construction machinery, and efficiency of construction is high, and the stiffness Composite Enclosure Structure sealing completed, retaining support are effective.
Accompanying drawing explanation
Fig. 1 revolves to dig to draw hole construction schematic diagram;
Fig. 2 is that construction schematic diagram is stirred in soil removal and replacement;
Fig. 3 be revolve dig draw hole before unfavorable stirring pile position of stratum schematic diagram;
Fig. 4 revolves to dig to draw pore structure schematic diagram;
Fig. 5 is the structural representation after hole is drawn in plain earthen backfill;
Fig. 6 is cement mixing pile driving construction schematic diagram;
Fig. 7 is the structural representation after cement mixing pile inserts shaped steel.
In figure: 1-draws position, hole; 2-cement mixing pile; 3-original ground; 4-groundwater table; 5-unfavorable stirring pile stratum; 6-draws hole; Bottom 7-unfavorable stirring pile stratum; 8-Mixing Machine; Bottom 9-agitation pile; 10-shaped steel, 11-earth material.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiments of the invention are elaborated.
A kind of stiffness Composite Enclosure Structure construction method, comprises the steps:
1. as shown in Figure 1, discharge by the stiffness Composite Enclosure Structure axis on design drawing and draw position, hole 1;
2. as shown in Figure 4, use Spiral digging machine wet work, construction to draw bottom hole 6 to unfavorable stirring pile stratum 7, will draw the taking-ups such as the gravel layer being unfavorable for pile in hole 6, hard skerry and erratic boulder;
3. as shown in Figure 5, reach after drawing hole 6 depth requirements, remove rotary drilling rig, continue to adopt mud to stablize hole wall, until draw hole and backfilling operation space meets the demands, to step 2. in backfill in hole 6 of drawing be applicable to stirring the earth material of pile to stake top;
4. as shown in Figure 6, draw after hole 6 backfilled, to construct in position cement mixing pile 2 with Mixing Machine 8, directly construction is to the agitation pile in design drawing 9;
5. as shown in Figure 7, shaped steel 10 is inserted in the cement mixing pile 4. formed in step.
It should be noted that, step 3. in be applicable to stirring the earth material 11 of pile and refer to element soil.Said stake top and the height residing for original ground 3.
Wherein, step is 2. middle adopts " jumping play " construction to draw hole.It should be noted that, when enclosed structure is constructed, be generally normally in groundwater table less than 4 containing unfavorable stirring pile stratum 5 such as gravel layer, hard skerry and erratic boulders, therefore, namely achieve wet work without the need to adding water or adding water on a small quantity.Therefore, bottom Spiral digging machine construction to unfavorable stirring pile stratum, the hole 6 of drawing of more than 7 positions is completed smoothly, and efficiency of construction is high.
Wherein, step 2. in draw hole 6 diameter than will the large 150mm ~ 200mm of the diameter of cement mixing pile 2 of construction molding, constructed and namely can obtain the cement mixing pile 2 of intended diameter in advance.
Wherein, step 2. Spiral digging machine wet work time, utilize gas lift reverse circulation machinery coordinate discharge slurries.
Wherein, as shown in Figure 2, step 4. construct cement mixing pile 2 time, remain untreated sandwich portion in two adjacent drawing between position, hole 2, stirred by Mixing Machine Final 8 system.
Wherein, described Mixing Machine 8 is three axle mixers, the multiple pile of one-shot forming, and can draw adjacent two between position, hole 2 simultaneously and remain untreated sandwich portion action of forced stirring, operating efficiency is high, and construction effect is good.
Wherein, step 5. Shaped Steel 10 should be inserted before cement mixing pile 2 initial set, avoids cement mixing pile 2 to condense causing shaped steel 10 to insert difficulty, not situation on earth of inserting occurs.
Wherein, step 5. in when inserting shaped steel 10, insert in agitation pile by shaped steel deadweight with crane lifting shaped steel 10, or make shaped steel 10 sink to putting in place by the vibrating hammer with hydraulic tongs.It should be noted that, shaped steel 10 must ensure that insertion puts in place here, to reach the effect designed in advance.
Run within the scope of stiffness Composite Enclosure Structure construction depth as shown in Figure 3 containing the unfavorable stirring pile stratum 5 such as gravel layer, hard skerry and erratic boulder time, with Spiral digging machine according to digging to unfavorable stirring pile stratum 7 under stiffness Composite Enclosure Structure stake position, change the earth material filled out and may be used for stirring pile, and then carry out the construction of stiffness Composite Enclosure Structure.The method technology maturation, technique are simple, with low cost, and efficiency of construction is high, and manufacturing schedule is fast, and take full advantage of conventional construction machinery, the stiffness Composite Enclosure Structure completed reaches well goes along with sb. to guard him effect.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.

Claims (8)

1. a stiffness Composite Enclosure Structure construction method, is characterized in that, comprises the steps:
1. first discharge by stiffness Composite Enclosure Structure axis and draw position, hole;
2. use Spiral digging machine wet work, construction is drawn bottom hole to unfavorable stirring pile stratum;
3. to step 2. in backfill of drawing in hole be applicable to stirring the earth material of pile to stake top;
4. draw after hole backfilled, to construct in position cement mixing pile with Mixing Machine;
5. shaped steel is inserted in the cement mixing pile 4. formed in step.
2. a kind of stiffness Composite Enclosure Structure construction method according to claim 1, is characterized in that: step is 2. middle adopts " jumping play " construction to draw hole.
3. a kind of stiffness Composite Enclosure Structure construction method according to claim 1, is characterized in that: step 2. in draw bore dia than will the large 150mm ~ 200mm of the cement mixing pile diameter of construction molding.
4. a kind of stiffness Composite Enclosure Structure construction method according to claim 1, is characterized in that: step 2. Spiral digging machine wet work time, utilize gas lift reverse circulation machinery coordinate discharge slurries.
5. a kind of stiffness Composite Enclosure Structure construction method according to claim 1, is characterized in that: step 4. construct cement mixing pile time, remain untreated sandwich portion, by Mixing Machine action of forced stirring at the two adjacent hole interdigits that draw.
6. a kind of stiffness Composite Enclosure Structure construction method according to claim 1, is characterized in that: described Mixing Machine is three axle mixers.
7. a kind of stiffness Composite Enclosure Structure construction method according to claim 1, is characterized in that: step 5. Shaped Steel should be inserted before cement mixing pile initial set.
8. a kind of stiffness Composite Enclosure Structure construction method according to claim 1, it is characterized in that: step 5. in insert shaped steel time, with crane lifting shaped steel and by shaped steel deadweight insertion agitation pile, or shaped steel is made to sink to putting in place by the vibrating hammer with hydraulic tongs.
CN201410795100.8A 2014-12-18 2014-12-18 Reinforced composite envelope structure construction method Pending CN104612164A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410795100.8A CN104612164A (en) 2014-12-18 2014-12-18 Reinforced composite envelope structure construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410795100.8A CN104612164A (en) 2014-12-18 2014-12-18 Reinforced composite envelope structure construction method

Publications (1)

Publication Number Publication Date
CN104612164A true CN104612164A (en) 2015-05-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105507345A (en) * 2015-12-04 2016-04-20 嘉库智能停车系统(上海)有限公司 Reversed construction method for well type fully-automatic three-dimensional garage
CN106567382A (en) * 2016-10-25 2017-04-19 东通岩土科技(杭州)有限公司 Foundation pit curtain construction method in gravel layer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102296630A (en) * 2011-06-17 2011-12-28 北京中岩大地工程技术有限公司 Construction method of long-screw high-pressure mix jetting cement diaphragm wall
CN102493452A (en) * 2011-11-30 2012-06-13 蔡嘉明 Grouting pile-grafting construction method and equipment
JP2013177808A (en) * 2013-05-23 2013-09-09 Ohbayashi Corp Construction method for earth retaining wall, construction method for pile, pile, and boring machine
CN103669339A (en) * 2012-08-28 2014-03-26 李孝虎 Wet jetting pile construction technology for strengthening soft soil foundation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102296630A (en) * 2011-06-17 2011-12-28 北京中岩大地工程技术有限公司 Construction method of long-screw high-pressure mix jetting cement diaphragm wall
CN102493452A (en) * 2011-11-30 2012-06-13 蔡嘉明 Grouting pile-grafting construction method and equipment
CN103669339A (en) * 2012-08-28 2014-03-26 李孝虎 Wet jetting pile construction technology for strengthening soft soil foundation
JP2013177808A (en) * 2013-05-23 2013-09-09 Ohbayashi Corp Construction method for earth retaining wall, construction method for pile, pile, and boring machine

Non-Patent Citations (2)

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Title
刘永刚: "水泥搅拌桩的支承应用", 《中国科技信息》 *
李闵等: "临江侧穿越抛石层的"三墙合一"地下连续墙施工技术", 《建筑施工》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105507345A (en) * 2015-12-04 2016-04-20 嘉库智能停车系统(上海)有限公司 Reversed construction method for well type fully-automatic three-dimensional garage
CN106567382A (en) * 2016-10-25 2017-04-19 东通岩土科技(杭州)有限公司 Foundation pit curtain construction method in gravel layer

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Application publication date: 20150513