阅读说明：本技术 一种地铁盾构保护区的深层多节递进式钢护筒 (A kind of progressive steel pile casting of deep layer more piece of metro shield protection zone ) 是由 陈钢 陈梅琴 陆兴江 马永库 何宜龙 汤建红 黄益江 任海丹 于 2019-09-20 设计创作，主要内容包括：本发明涉及一种地铁盾构保护区的深层多节递进式钢护筒,解决地铁盾构保护区对钢护筒的埋深要求大,传统的钢护筒埋设施工方式无法满足施工需求的问题。本装置钢护筒的节段包括最下端的底节、最上端的顶节、设置在顶节和底节之间的一个或者多个标准节,相邻节段上下对接处的外侧套设有腰带,腰带下半部分与下侧节段焊接固定,腰带上半部分与上侧节段焊接固定,腰带上半部分环周方向均匀设有四个抱抓孔,相邻的抱抓孔之间设有与上侧节段下端外壁满焊固定的上焊接孔,所述腰带的两侧壁在上焊接孔上方靠顶部对称开设有两个吊装孔。本发明采用分节递进旋转静压施工,可以完成大深度的深层钢护筒的施工,保证焊接连接的强度,方便对齐,提高了效率。(The present invention relates to a kind of progressive steel pile casting of deep layer more piece of metro shield protection zone, solve the problem of that metro shield protection zone requires big traditional protecting tube embedding form of construction work to be unable to satisfy construction demand the buried depth of steel pile casting.The segment of present apparatus steel pile casting includes the lowermost coxopodite, the epimerite of the top, one or more standard knot for being arranged between epimerite and coxopodite, outer sheath above and below adjacent segment at docking is equipped with waistband, waistband lower half portion is welded and fixed with downside segment, waistband top half is welded and fixed with upside segment, waistband top half ring circumferential direction is uniformly provided with four and embraces grasping holes, it is adjacent embrace to be equipped between grasping holes be fully welded fixed upper welding hole with upside segment lower end outer wall, the two sidewalls of the waistband symmetrically open up that there are two holes for hoist above upper welding hole by top.The present invention can be completed the construction of the deep layer steel pile casting of big depth, be guaranteed the intensity being welded to connect, facilitate alignment, improve efficiency using the progressive rotation static pressure construction of merogenesis.)

1. a kind of progressive steel pile casting of deep layer more piece of metro shield protection zone, steel pile casting is the concatenated tubular in multiple segments or more Structure, it is characterised in that: the segment of steel pile casting include the lowermost coxopodite, the epimerite of the top, setting epimerite and coxopodite it Between one or more standard knot, the outer sheath above and below adjacent segment at docking is equipped with waistband, the waistband lower half portion with Downside segment is welded and fixed, and waistband top half is welded and fixed with upside segment, and waistband top half ring circumferential direction is uniformly provided with Four grasping holes of embracing for connecting with power source, adjacent embracing are fixed equipped with being fully welded with upside segment lower end outer wall between grasping holes Upper welding hole, the two sidewalls of the waistband are symmetrically opened up by top there are two hole for hoist above upper welding hole.

2. a kind of progressive steel pile casting of deep layer more piece of metro shield protection zone according to claim 1, it is characterised in that: It sets in the bottom end ring week of upside segment at the waistband there are four the pin hole being aligned with armful grasping holes, the aperture of the pin hole, which is less than, embraces The aperture of grasping holes is inserted with pin at described armful of grasping holes and pin hole, and the outer end of pin and waistband are embraced to be fully welded between grasping holes hole wall.

3. a kind of progressive steel pile casting of deep layer more piece of metro shield protection zone according to claim 1, it is characterised in that: The top of the waistband is fully welded with the outer wall ring round angle of upside segment and connect.

4. a kind of progressive steel pile casting of deep layer more piece of metro shield protection zone according to claim 1, it is characterised in that: The waistband bottom end is fully welded with downside segment outer wall ring round angle and connect, and downside segment top is fully welded with waistband inner wall ring round angle Connection.

5. a kind of progressive steel pile casting of deep layer more piece of metro shield protection zone according to claim 4, it is characterised in that: It is uniformly provided with several lower welding holes the waistband lower half portion ring week, lower welding hole and the outer wall of downside segment are fully welded fixation.

6. a kind of progressive steel shield of the deep layer more piece of metro shield protection zone described according to claim 1 or 2 or 3 or 4 or 5 Cylinder, it is characterised in that: the lower end of the coxopodite is equipped with the bottom boots of annular, and the wall thickness of the bottom boots is greater than the wall thickness of coxopodite, bottom boots Inner wall it is concordant with the inner wall of coxopodite, the bottom of the bottom boots is evenly arranged with several gums, is embedded with tooth plate in the gum.

7. a kind of progressive steel pile casting of deep layer more piece of metro shield protection zone according to claim 6, it is characterised in that: The tooth plate includes the internal gear being arranged alternately and outer tooth plate, and the internal gear, which slopes inwardly, protrudes setting, maximum protrusion thickness No more than 10mm；The outer tooth plate is inclined outwardly protrusion setting, and maximum protrusion thickness is no more than 10mm, the internal gear and external tooth Plate is one end protrusion counterclockwise.

8. a kind of progressive steel pile casting of deep layer more piece of metro shield protection zone according to claim 6, it is characterised in that: Ring Zhou Caiyong V-type is fully welded at the coxopodite lower end and bottom boots upper end docking.

9. a kind of progressive steel shield of the deep layer more piece of metro shield protection zone described according to claim 1 or 2 or 3 or 4 or 5 Cylinder, it is characterised in that: the top two sidewalls of the epimerite are symmetrically arranged with two holes for hoist, the lower section ring week of hole for hoist is uniformly provided with Four or eight are embraced grasping holes.

Technical field

The invention belongs to urban engineering project fields, are related to a kind of underground pile foundation constructing structure, in particular to a kind of subway The progressive steel pile casting of deep layer more piece of shield protection zone.

Background technique

With China's expanding economy, urban population density is constantly promoted, and Vehicle's quantity is continuously improved per capita, city The case where pressure of face traffic is increasing, especially morning and evening peak period, bottom surface traffic congestion is increasingly severe.For above-mentioned feelings Condition, side builds overhead, grade separation to builders on the ground, builds the rail traffics such as subway below ground, forms three-dimensional traffic Network alleviates the case where going on a journey congestion.

Subway construction needs to need along subway in underground progress shield in order to guarantee the stabilization of hypogee structure Metro shield protection zone delimited, to ensure construction safety.When the bridge facility of the overhead of ground, grade separation etc., Bridge Pile design Positioning it is excessively close from metro shield sideline when, according to subway peace comment requirement, it is necessary to constructed using perturbation flowing mode.Using biography System technique: such as abrasion drill, churning driven, long spire take soil that can be unsatisfactory for requiring.Therefore embedded deep layer steel pile casting is selected to go again Piling work.Since metro shield depth is deeper, embedded steel pile casting depth is commonly designed generally at 30 meters or more, depth is big, applies Work difficulty is big, and conventional static pressure can not construct to designed elevation, it is therefore desirable to which merogenesis construction is applied using rotary static pressure method Work.How merogenesis construction in by each segment rapid abutting joint, and guarantee accurate alignment, guarantee docking high reliability, be ensure apply Working medium amount and the emphasis for improving construction efficiency.

Summary of the invention

Big it is an object of the invention to require for buried depth of the metro shield protection zone to steel pile casting, traditional steel pile casting buries If form of construction work is unable to satisfy the problem of construction demand, a kind of progressive steel shield of deep layer more piece of metro shield protection zone is provided Cylinder, using the steel pile casting form of construction work that more piece is progressive, adjacent segments cylinder is fixed using belt type, and connection is reliable, alignment effect Good, difficulty of construction is low.

The technical solution adopted by the present invention to solve the technical problems is: a kind of deep layer more piece of metro shield protection zone is passed Into formula steel pile casting, steel pile casting is the concatenated tubular structure in multiple segments or more, it is characterised in that: the segment of steel pile casting includes most lower The coxopodite at end, the epimerite of the top, one or more standard knot for being arranged between epimerite and coxopodite, it is right above and below adjacent segment The outer sheath for meeting place is equipped with waistband, and the waistband lower half portion is welded and fixed with downside segment, and waistband top half and upside are saved Section is welded and fixed, and waistband top half ring circumferential direction is uniformly provided with four grasping holes of embracing for connecting with power source, and adjacent embraces It is equipped between grasping holes and is fully welded fixed upper welding hole with upside segment lower end outer wall, the two sidewalls of the waistband are on upper welding hole Side leans on top symmetrically to open up, and there are two holes for hoist.This programme is welded and fixed adjacent segment using waistband, waistband and upside Segment, downside segment are that clearance fit is welded and fixed.Waistband and coxopodite, epimerite, standard knot are prefabrication molding, to applying Work on-site assembly.When construction, each waistband is welded and fixed with corresponding downside segment by design, coxopodite construction is first carried out, will push up The coxopodite that waistband has been welded in portion is welded and fixed, and then carries out lifting positioning using the hole for hoist of waistband, downside segment is using rotation Formula static pressure method is constructed, and a grasping holes of embracing for waistband can be used as to embrace and grab anchor point at this time, coxopodite static pressure in place after, then by top The standard knot for having welded waistband is lifted into above coxopodite, and the bottom end of standard knot is inserted in the waistband above coxopodite and weld admittedly Fixed, the construction of deep layer steel pile casting is completed in such progressive construction of merogenesis.

Preferably, setting in the bottom end ring week of the upside segment at the waistband, there are four the pin hole being aligned with armful grasping holes, institutes The aperture for stating pin hole is less than the aperture for embracing grasping holes, and pin is inserted at described armful of grasping holes and pin hole, and the outer end of pin and waistband are embraced It is fully welded between grasping holes hole wall.Grasping holes of embracing on waistband grabs positioning for embracing in downside segmental construction, in upside segmental construction When, it embraces grasping holes and is used as outer pin hole, be fully welded fixation after grasping holes and pin hole pin joint will be embraced using pin, guarantee bonding strength.

It is connect preferably, the top of the waistband is fully welded with the outer wall ring round angle of upside segment.

Connect preferably, the waistband bottom end is fully welded with downside segment outer wall ring round angle, downside segment top with Waistband inner wall ring round angle is fully welded connection.

Preferably, being uniformly provided with several lower welding holes the waistband lower half portion ring week, lower welding hole and downside are saved The outer wall of section is fully welded fixation.

Preferably, the lower end of the coxopodite is equipped with the bottom boots of annular, the wall thickness of the bottom boots is greater than the wall thickness of coxopodite, bottom The inner wall of boots and the inner wall of coxopodite are concordant, and the bottom of the bottom boots is evenly arranged with several gums, are embedded with tooth in the gum Plate.The structure of bottom boots, which prevents from encountering in spinning process, has barrier to guarantee that bottom is indeformable.Tooth plate guarantees the pressure of rotation static pressure Enter effect.

Preferably, the tooth plate includes the internal gear being arranged alternately and outer tooth plate, the internal gear, which slopes inwardly, to be protruded Setting, maximum protrusion thickness are no more than 10mm；The outer tooth plate is inclined outwardly protrusion setting, and maximum protrusion thickness is no more than 10mm, the internal gear and outer tooth plate are one end protrusion counterclockwise.

Preferably, ring Zhou Caiyong V-type is fully welded at the coxopodite lower end and bottom boots upper end docking.

Preferably, the top two sidewalls of the epimerite be symmetrically arranged with two holes for hoist, hole for hoist lower section ring week uniformly If there are four or eight are embraced grasping holes.Without waistband when epimerite lifting and rotation static pressure, directly lifts and embrace and grab positioning.

Steel pile casting of the invention can complete applying for the deep layer steel pile casting of big depth using the progressive rotation static pressure construction of merogenesis Work, the present apparatus use switching device of the waistband as upper-lower segment, can not only guarantee the intensity being welded to connect, but also facilitate alignment, Construction quality is ensured；And the hole bit architecture of waistband can be used as lifting point when merogenesis is constructed and embrace and concentrates on work at selected units, and facilitate construction, Improve efficiency.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of the invention.

Fig. 2 is the half-section diagram that coxopodite of the invention is connect as downside segment with waistband.

Fig. 3 is the connection structure half-section diagram of standard knot of the invention as upside segment and waistband.

In figure: 1, coxopodite, 2, standard knot, 3, epimerite, 4, waistband, 5, hole for hoist, 6, armful grasping holes, 7, bottom boots, 8, tooth plate, 9, Upper welding hole, 10, lower welding hole, 11, pin hole, 12, pin.

Specific embodiment

Below by specific embodiment and in conjunction with attached drawing, the present invention is further described.