CN103276670A - Suspension bridge anchorage underground drilling comprehensive anchoring scheme - Google Patents
Suspension bridge anchorage underground drilling comprehensive anchoring scheme Download PDFInfo
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- CN103276670A CN103276670A CN2013102713649A CN201310271364A CN103276670A CN 103276670 A CN103276670 A CN 103276670A CN 2013102713649 A CN2013102713649 A CN 2013102713649A CN 201310271364 A CN201310271364 A CN 201310271364A CN 103276670 A CN103276670 A CN 103276670A
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- 238000004873 anchoring Methods 0.000 title claims abstract description 89
- 239000000725 suspension Substances 0.000 title claims abstract description 55
- 238000005553 drilling Methods 0.000 title claims abstract description 16
- 238000010276 construction Methods 0.000 claims abstract description 89
- 239000011435 rock Substances 0.000 claims abstract description 53
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 238000009954 braiding Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000002689 soil Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000002285 radioactive effect Effects 0.000 abstract 2
- 239000011150 reinforced concrete Substances 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The invention discloses a suspension bridge anchorage underground drilling comprehensive anchoring scheme in suspension bridge anchorage anchoring schemes. The anchoring technology scheme mainly includes that a main cable is broken up into cable strands through a cable breaking saddle on the earth surface, a radioactive casing borehole is constructed on a drilling platform and drilled down through a surface soil layer to a bed rock layer, and simultaneously a construction vertical shaft passes through the surface soil layer to the tail end of the radioactive casing borehole; a shaft bottom gate way, a blind inclined shaft, a horizontal connection roadway, a horizontal connection borehole, a vertical blind shaft anchor pile, a vertical borehole anchor pile and a shaft bottom radioactivity anchoring borehole are constructed in bed rock, bed rock blocks and anchor piles are woven and poured to form an 8-shaped bed rock anchor hook by using a cable strand wire rope and reinforced concrete, and the tail of the cable strand wire rope is anchored in the shaft bottom radioactivity anchoring borehole at the bottom of the blind inclined shaft by using resin materials; and finally cable strands of the 8-shaped bed rock anchor hook are connected to the cable strands of the main cable in balance mode by using a hydraulic balance connecting jack device. The suspension bridge anchorage underground drilling comprehensive anchoring scheme has the advantages of saving engineering quantity and saving project cost, and is suitable for anchoring construction of special geological conditions or especially large suspension bridge anchorages.
Description
Technical field
The present invention relates in the suspension bridge anchorage anchoring scheme a kind of suspension bridge anchorage well worker comprehensive anchoring scheme of holing.
Background technology
The suspension bridge anchorage is one of main bearing structure of suspension bridge, and major function is that main push-towing rope tension force is passed to ground.The suspension bridge anchorage mainly is divided into gravity anchor and tunnel-type anchorage by structural form, and existing suspension bridge anchorage mainly adopts gravity anchor, and the suspension bridge anchorage that the part horizon d exposes adopts tunnel-type anchorage; The gravity anchor engineering quantity is big, cost is higher, and the anchorage engineering quantity of especially big suspension bridge is bigger, and tunnel-type anchorage is limited by the job location geological conditions, requires two sides that firm horizon d is arranged, and can save engineering quantity greatly, reduces construction costs.Along with the design and construction of social development demand suspension bridge is increasing, also demand is bigger for the anchored force of anchorage, and existing anchorage mode is beginning to show inferior position aspect construction volume, difficulty of construction and the construction cost.Design a kind of new type suspension bridge anchorage anchoring scheme in conjunction with above-mentioned anchorage mode and adapt to especially big suspension bridge anchorage construction demand, this technical scheme should have the characteristics that construction cost is low, construction volume is little, quick construction is convenient, the job location is not subjected to the geological conditions restriction, the anchorage anchoring strength is big, anchorage anchoring area is big, the main cable construction connection space is big and the hydraulic control constant-resistance is out of shape; Accomplish ground zero influence in suspension bridge anchorage construction process simultaneously, for the construction of the especially big suspension bridge anchorage of modernization quick and safe provides safeguard.
Summary of the invention
At the technological deficiency of existing suspension bridge anchorage anchorage style, the purpose of this invention is to provide a kind of suspension bridge anchorage well worker comprehensive anchoring scheme of holing.
A kind of suspension bridge anchorage well worker provided by the invention comprehensive anchoring scheme technical scheme feature of holing is:
A, the cable saddle that utilize to loose on the face of land are separated into strand with main push-towing rope;
B, pass topsoil to horizon d at drilling platform upper edge strand direction construction radioactivity cased bore-bole;
C, near the vertical of constructing above-mentioned radioactivity cased bore-bole tail end pass topsoil to horizon d;
D, the shaft bottom gallery of constructing in the horizon d of vertical shaft bottom disclose radioactivity cased bore-bole tail end;
E, in the gallery of shaft bottom along radioactivity cased bore-bole direction construction sub-inclined shaft;
F, in sub-inclined shaft lateral wall construction level connection roadway or level contact boring, the vertical dark vertical anchoring pile of roof and floor construction or vertical drilling anchoring pile, the radioactivity anchoring boring of construction shaft bottom, shaft bottom;
G, strand wirerope tail end utilize resin material to disperse to be anchored in the radioactivity anchoring boring of shaft bottom, sub-inclined shaft bottom, utilize strand wirerope and steel concrete that basement rock piece and anchoring pile braiding are poured into " 8 " font basement rock grasp simultaneously;
H, in first stressed " 8 " word ring dispersed placement of each strand of construction braiding " 8 " font basement rock grasp process on different sillars, before the cast strand is applied pretightning force simultaneously;
I, the above-mentioned suspension bridge anchorage well worker comprehensive anchoring construction scheme of holing transform topsoil as pseudo-horizon d by grouting process, and at the pseudo-basement rock grasp of pseudo-horizon d construction " 8 " font, last grasp afterbody strand is anchored on the horizon d by radioactivity boring;
J, utilize hydro-cushion to connect very heavy device the strand of " 8 " font basement rock grasp and the strand of main push-towing rope are connected balance.
Preferably, described b step: pass topsoil at drilling platform upper edge strand direction construction radioactivity cased bore-bole and draw the dispersion strand to horizon d.
Preferably, described c step: the construction vertical passes topsoil to horizon d near above-mentioned radioactivity cased bore-bole tail end.
Preferably, described d step: construction shaft bottom gallery discloses radioactivity cased bore-bole tail end in the horizon d of vertical shaft bottom.
Preferably, described e step: in the gallery of shaft bottom along radioactivity cased bore-bole direction construction sub-inclined shaft.
Preferably, described f step: in sub-inclined shaft lateral wall construction level connection roadway or level contact boring, the vertical dark vertical anchoring pile of roof and floor construction or vertical drilling anchoring pile, the radioactivity anchoring boring of construction shaft bottom, shaft bottom.
Preferably, described g step: strand wirerope tail end utilizes resin material to disperse to be anchored in the radioactivity anchoring boring of shaft bottom, sub-inclined shaft bottom, utilizes strand wirerope and steel concrete that basement rock piece and anchoring pile braiding are poured into " 8 " font basement rock grasp simultaneously.
Preferably, described h step: first stressed " 8 " the word ring dispersed placement at each strand of construction braiding " 8 " font basement rock grasp process arrives on the different sillars, before the cast strand is applied pretightning force simultaneously.
Preferably, described i step: the above-mentioned suspension bridge anchorage well worker comprehensive anchoring construction scheme of holing, transform topsoil as pseudo-horizon d by grouting process, at the pseudo-basement rock grasp of pseudo-horizon d construction " 8 " font, last grasp afterbody strand is anchored on the horizon d by radioactivity boring.
Preferably, described j step: utilize hydro-cushion to connect very heavy device the strand of " 8 " font basement rock grasp and the strand of main push-towing rope are connected balance.
The hole technology of comprehensive anchoring scheme of suspension bridge anchorage well worker of the present invention has solved that existing common suspension bridge anchorage construction amount is big, constructional difficulties, construction costs height, foundation excavation area are big, be subjected to the geological conditions restriction, the anchorage anchoring strength is low, anchorage anchoring area is little and main cable construction connection space minor issue etc.Invent a kind of especially big suspension bridge anchorage construction scheme that is applicable to thick aquifer, deeply feels particular surroundings such as soil layer or drift sand formation, this technical scheme should have that construction cost is low, construction volume is little, quick construction is convenient, the job location is not subjected to the geological conditions restriction, the anchorage anchoring strength is big, anchorage anchoring area is big, the main cable construction connection space is big and characteristics such as hydraulic control constant-resistance distortion; Simultaneously minimum to face of land influence in whole construction course, when main push-towing rope is subjected to impact force hydro-cushion connect very heavy device can constant-resistance distortion decompression protection pontic safety.Its concrete advantage is as follows:
1, the suspension bridge anchorage well worker comprehensive anchoring scheme of holing is separated into strand by well worker construction and cased bore-bole construction with main push-towing rope and passes topsoil and guide to horizon d, face of land engineering is become the basement rock engineering, stop ground surface large area excavation foundation engineering problems, special list soil layer constructional difficulties problem and influence near the appurtenance problem in the face of land etc.;
2, construction shaft bottom gallery, sub-inclined shaft, horizontal connection roadway and contact boring etc. form basement rock tunnel (boring) network in basement rock, recycling strand wirerope and steel concrete pour into " 8 " font basement rock grasp with basement rock piece and anchoring pile braiding, improve working security, improve the anchorage anchored force, reduce construction cost and reduce difficulty of construction etc.;
3, suspension bridge anchorage well worker holes comprehensive anchoring scheme for increasing anchored force, can increase the stressed branch of anchoring strand at strand by construction radioactivity anchoring boring, or schemes such as construction vertical anchoring pile, grouting and reinforcing increases anchored force;
4, suspension bridge anchorage well worker holes comprehensive anchoring scheme when topsoil is blocked up, can transform topsoil as pseudo-horizon d by slip casting, the pseudo-basement rock grasp of construction " 8 " font in pseudo-horizon d, last grasp afterbody strand is anchored on the horizon d by radioactivity boring, or directly by lengthening the radioactivity cased bore-bole strand directly is anchored on the horizon d as anchorage;
5, the hole hydro-cushion of comprehensive anchoring scheme of suspension bridge anchorage well worker connects very heavy device, the strand of " 8 " font basement rock grasp and the strand of main push-towing rope are connected balance, hydro-cushion connects effectively shock absorbing power of very heavy device, guarantees buffering distortion back main push-towing rope intensity and pontic overall security;
6, the hole main cable strand of comprehensive anchoring scheme of suspension bridge anchorage well worker is dispersed through the radioactivity cased bore-bole, strand with " 8 " font basement rock grasp in the gallery of shaft bottom is connected, amplify in the connection space like this, is convenient to the very heavy use of large hydraulic, is convenient to monitor, be convenient to after strand is installed in the future the maintain and replace strand and regulates the stressed degree of tightness of strand etc. automatically.
Description of drawings
Fig. 1 is the hole generalized section of comprehensive anchoring scheme of suspension bridge anchorage well worker shown in the present;
Fig. 2 is the hole floor map of comprehensive anchoring scheme of suspension bridge anchorage well worker shown in the present;
Fig. 3 is the floor map of " 8 " shown in the present font basement rock grasp;
Fig. 4 is the hole floor map of the pseudo-basement rock construction of comprehensive anchoring scheme topsoil of suspension bridge anchorage well worker shown in the present.
The specific embodiment
In conjunction with Fig. 1,2,3 and 4, the hole technical characterictic of comprehensive anchoring scheme of suspension bridge anchorage well worker provided by the invention is as follows:
A, the cable saddle that utilize to loose on the face of land are separated into strand with main push-towing rope;
B, pass topsoil to horizon d at drilling platform upper edge strand direction construction radioactivity cased bore-bole;
C, near the vertical of constructing above-mentioned radioactivity cased bore-bole tail end pass topsoil to horizon d;
D, the shaft bottom gallery of constructing in the horizon d of vertical shaft bottom disclose radioactivity cased bore-bole tail end;
E, in the gallery of shaft bottom along radioactivity cased bore-bole direction construction sub-inclined shaft;
F, in sub-inclined shaft lateral wall construction level connection roadway or level contact boring, the vertical dark vertical anchoring pile of roof and floor construction or vertical drilling anchoring pile, the radioactivity anchoring boring of construction shaft bottom, shaft bottom;
G, strand wirerope tail end utilize resin material to disperse to be anchored in the radioactivity anchoring boring of shaft bottom, sub-inclined shaft bottom, utilize strand wirerope and steel concrete that basement rock piece and anchoring pile braiding are poured into " 8 " font basement rock grasp simultaneously;
H, in first stressed " 8 " word ring dispersed placement of each strand of construction braiding " 8 " font basement rock grasp process on different sillars, before the cast strand is applied pretightning force simultaneously;
I, the above-mentioned suspension bridge anchorage well worker comprehensive anchoring construction scheme of holing transform topsoil as pseudo-horizon d by grouting process, and at the pseudo-basement rock grasp of pseudo-horizon d construction " 8 " font, last grasp afterbody strand is anchored on the horizon d by radioactivity boring;
J, utilize hydro-cushion to connect very heavy device the strand of " 8 " font basement rock grasp and the strand of main push-towing rope are connected balance.
Described b step: pass topsoil at drilling platform upper edge strand direction construction radioactivity cased bore-bole and draw the dispersion strand to horizon d.
Described c step: the construction vertical passes topsoil to horizon d near above-mentioned radioactivity cased bore-bole tail end.
Described d step: construction shaft bottom gallery discloses radioactivity cased bore-bole tail end in the horizon d of vertical shaft bottom.
Described e step: in the gallery of shaft bottom along radioactivity cased bore-bole direction construction sub-inclined shaft.
Described f step: in sub-inclined shaft lateral wall construction level connection roadway or level contact boring, the vertical dark vertical anchoring pile of roof and floor construction or vertical drilling anchoring pile, the radioactivity anchoring boring of construction shaft bottom, shaft bottom.
Described g step: strand wirerope tail end utilizes resin material to disperse to be anchored in the radioactivity anchoring boring of shaft bottom, sub-inclined shaft bottom, utilizes strand wirerope and steel concrete that basement rock piece and anchoring pile braiding are poured into " 8 " font basement rock grasp simultaneously.
Described h step: first stressed " 8 " the word ring dispersed placement at each strand of construction braiding " 8 " font basement rock grasp process arrives on the different sillars, before the cast strand is applied pretightning force simultaneously.
Described i step: the above-mentioned suspension bridge anchorage well worker comprehensive anchoring construction scheme of holing, transform topsoil as pseudo-horizon d by grouting process, at the pseudo-basement rock grasp of pseudo-horizon d construction " 8 " font, last grasp afterbody strand is anchored on the horizon d by radioactivity boring.
Described j step: utilize hydro-cushion to connect very heavy device the strand of " 8 " font basement rock grasp and the strand of main push-towing rope are connected balance.
Embodiment one
Suspension bridge anchorage well worker holes, and comprehensive anchoring scheme forms individual layer boring by the radioactivity cased bore-bole in horizon d or multilayer is holed, and finally constructs into individual layer " 8 " font basement rock grasp or layer stereo combined type " 8 " font basement rock grasp.
Embodiment two
Suspension bridge anchorage well worker construct in basement rock shaft bottom gallery, sub-inclined shaft, horizontal connection roadway and the contact boring etc. of comprehensive anchoring scheme of holing form basement rock tunnel (boring) network, and recycling strand wirerope and steel concrete weave basement rock piece and anchoring pile and pours into " 8 " font basement rock grasp.
Embodiment three
Suspension bridge anchorage well worker holes comprehensive anchoring scheme for increasing anchored force, can increase the stressed branch of anchoring strand at strand by construction radioactivity anchoring boring, or schemes such as construction vertical anchoring pile, grouting and reinforcing increases anchored force.
Embodiment four
Suspension bridge anchorage well worker holes comprehensive anchoring scheme when topsoil is blocked up, can transform topsoil as pseudo-horizon d by slip casting, the pseudo-basement rock grasp of construction " 8 " font in pseudo-horizon d, last grasp afterbody strand is anchored on the horizon d by radioactivity boring, or directly by lengthening the radioactivity cased bore-bole strand directly is anchored on the horizon d as anchorage.
Embodiment five
The hole hydro-cushion of comprehensive anchoring scheme of suspension bridge anchorage well worker connects very heavy device, that disperses in the gallery of shaft bottom is connected balance with the strand of " 8 " font basement rock grasp and the strand of main push-towing rope, installing space is huge in the gallery of shaft bottom, be convenient to the very heavy use of large hydraulic, be convenient to monitor, be convenient to after strand is installed in the future the maintain and replace strand and regulate the stressed degree of tightness of strand etc. automatically, hydro-cushion simultaneously connects very heavy device is out of shape by hydraulic cushion, reaches the effect that improves whole pontic intensity and safety.
Although it will be understood by those skilled in the art that the present invention is that its way of realization is not limited to above-mentioned embodiment by above-mentioned preferred enforcement line description.Should be realized that under the situation that does not break away from purport of the present invention those skilled in the art can make different variations and modification to the present invention.
Claims (10)
1. a suspension bridge anchorage well worker comprehensive anchoring scheme of holing is characterized in that:
A, the cable saddle that utilize to loose on the face of land are separated into strand with main push-towing rope;
B, pass topsoil to horizon d at drilling platform upper edge strand direction construction radioactivity cased bore-bole;
C, near the vertical of constructing above-mentioned radioactivity cased bore-bole tail end pass topsoil to horizon d;
D, the shaft bottom gallery of constructing in the horizon d of vertical shaft bottom disclose radioactivity cased bore-bole tail end;
E, in the gallery of shaft bottom along radioactivity cased bore-bole direction construction sub-inclined shaft;
F, in sub-inclined shaft lateral wall construction level connection roadway or level contact boring, the vertical dark vertical anchoring pile of roof and floor construction or vertical drilling anchoring pile, the radioactivity anchoring boring of construction shaft bottom, shaft bottom;
G, strand wirerope tail end utilize resin material to disperse to be anchored in the radioactivity anchoring boring of shaft bottom, sub-inclined shaft bottom, utilize strand wirerope and steel concrete that basement rock piece and anchoring pile braiding are poured into " 8 " font basement rock grasp simultaneously;
H, in first stressed " 8 " word ring dispersed placement of each strand of construction braiding " 8 " font basement rock grasp process on different sillars, before the cast strand is applied pretightning force simultaneously;
I, the above-mentioned suspension bridge anchorage well worker comprehensive anchoring construction scheme of holing transform topsoil as pseudo-horizon d by grouting process, and at the pseudo-basement rock grasp of pseudo-horizon d construction " 8 " font, last grasp afterbody strand is anchored on the horizon d by radioactivity boring;
J, utilize hydro-cushion to connect very heavy device the strand of " 8 " font basement rock grasp and the strand of main push-towing rope are connected balance.
2. the suspension bridge anchorage well worker according to claim 1 comprehensive anchoring scheme of holing is characterized in that described b step: pass topsoil at drilling platform upper edge strand direction construction radioactivity cased bore-bole and draw and disperse strand to horizon d.
3. the suspension bridge anchorage well worker according to claim 1 comprehensive anchoring scheme of holing, it is characterized in that described c step: the construction vertical passes topsoil to horizon d near above-mentioned radioactivity cased bore-bole tail end.
4. the suspension bridge anchorage well worker according to claim 1 comprehensive anchoring scheme of holing, it is characterized in that described d step: construction shaft bottom gallery discloses radioactivity cased bore-bole tail end in the horizon d of vertical shaft bottom.
5. the suspension bridge anchorage well worker according to claim 1 comprehensive anchoring scheme of holing is characterized in that described e step: in the gallery of shaft bottom along radioactivity cased bore-bole direction construction sub-inclined shaft.
6. the suspension bridge anchorage well worker according to claim 1 comprehensive anchoring scheme of holing, it is characterized in that, described f step: in sub-inclined shaft lateral wall construction level connection roadway or level contact boring, the vertical dark vertical anchoring pile of roof and floor construction or vertical drilling anchoring pile, the radioactivity anchoring boring of construction shaft bottom, shaft bottom.
7. the suspension bridge anchorage well worker according to claim 1 comprehensive anchoring scheme of holing, it is characterized in that, described g step: strand wirerope tail end utilizes resin material to disperse to be anchored in the radioactivity anchoring boring of shaft bottom, sub-inclined shaft bottom, utilizes strand wirerope and steel concrete that basement rock piece and anchoring pile braiding are poured into " 8 " font basement rock grasp simultaneously.
8. the suspension bridge anchorage well worker according to claim 1 comprehensive anchoring scheme of holing, it is characterized in that, described h step: first stressed " 8 " the word ring dispersed placement at each strand of construction braiding " 8 " font basement rock grasp process arrives on the different sillars, before the cast strand is applied pretightning force simultaneously.
9. the suspension bridge anchorage well worker according to claim 1 comprehensive anchoring scheme of holing, it is characterized in that, described i step: the above-mentioned suspension bridge anchorage well worker comprehensive anchoring construction scheme of holing, transform topsoil as pseudo-horizon d by grouting process, at the pseudo-basement rock grasp of pseudo-horizon d construction " 8 " font, last grasp afterbody strand is anchored on the horizon d by radioactivity boring.
10. the suspension bridge anchorage well worker according to claim 1 comprehensive anchoring scheme of holing is characterized in that described j step: utilize hydro-cushion to connect very heavy device the strand of " 8 " font basement rock grasp and the strand of main push-towing rope are connected balance.
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| CN201310271364.9A CN103276670B (en) | 2013-07-01 | 2013-07-01 | A kind of suspension bridge anchorage is holed comprehensive anchoring process |
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| CN201310271364.9A CN103276670B (en) | 2013-07-01 | 2013-07-01 | A kind of suspension bridge anchorage is holed comprehensive anchoring process |
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| CN107724236A (en) * | 2017-10-24 | 2018-02-23 | 长江水利委员会长江科学院 | A kind of Tunnel-Type Anchorage of Suspension Bridge combination anchor and method of construction |
| CN109440623A (en) * | 2018-11-20 | 2019-03-08 | 湖南工业大学 | The interim splicing structure of concrete segment precast bridge |
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| CN109440623A (en) * | 2018-11-20 | 2019-03-08 | 湖南工业大学 | The interim splicing structure of concrete segment precast bridge |
| CN109440623B (en) * | 2018-11-20 | 2023-12-08 | 湖南工业大学 | Temporary splicing structure of precast bridge of concrete segment |
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| CN103276670B (en) | 2015-09-09 |
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Effective date of registration: 20150928 Address after: 271000, north of Fengxiang Road, South high tech Zone, Shandong, Tai'an Patentee after: Euloka (Shandong) deep ground pressure control Safe Technology Ltd Address before: 271200, No. 309, Xingshan Road, Tai'an people's court, Xintai City, Shandong Province Patentee before: Han Xuefeng |