CN100410456C - Support-anchor combined protection and harness method for dangerous rock - Google Patents

Support-anchor combined protection and harness method for dangerous rock Download PDF

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Publication number
CN100410456C
CN100410456C CNB2006100543357A CN200610054335A CN100410456C CN 100410456 C CN100410456 C CN 100410456C CN B2006100543357 A CNB2006100543357 A CN B2006100543357A CN 200610054335 A CN200610054335 A CN 200610054335A CN 100410456 C CN100410456 C CN 100410456C
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anchor
crag
rock
support
master control
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CN1884718A (en
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陈洪凯
唐红梅
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Abstract

The present invention discloses an overhanging rock supporting-anchor combined supporting method for controlling geologic hazards, which comprises the following steps: 1) selecting an anchoring site of an anchor rod (or anchor cable) according to a preliminary master control structural plane; 2) searching and determining a real master control structural plane of the overhanging rock; 3) determining a stable area of wall rock behind the overhanging rock mass; 4) determining a centre-of-gravity position of the overhanging rock mass; 5) determining the position of a supporting structure; 6) adjusting the preliminary anchoring site of the anchor rod (or anchor cable) and studying out the length of the anchoring segment, the length of anchor rod (or anchor cable), and the distance between every two anchor rods (or anchor cables); 7) allocating the load force of an overhanging rock supporting structure and the anchor rod (or anchor cable); 8) obtaining an overhanging rock supporting-anchor combined supporting structure designed according to normal modes. The present invention has the advantages that the advantages of supporting technique and anchoring technology are exerted simultaneously, the positions of the supporting structure and the anchoring segment, and the stress allocation thereof are determined accurately, the blindness of the design is avoided, the operability is strong and the practical value is great.

Description

Support-anchor combined protection and harness method for dangerous rock
Technical field
The invention belongs to the hazards control field, especially relate to a kind of support-anchor combined protection and harness method for dangerous rock.
Background technology
Crag (peri lous rock) is meant and is positioned at the rock block and the combination thereof of being cut less stable on cliff or the abrupt slope by many groups rock mass discontinuity.Crag is one of main geologic hazard type of China, have quantity many, distribute wide, destroy sudden strong, cause characteristics such as the calamity consequence is serious, just surplus having 50,000 as the reservoir area of Three Gorges, the life security and the about 3,000,000,000 yuans property loss that are threatening ten thousand people surplus in the of 80.In the crag that it has been established that, 80% belongs to draw to cut and topples over type crag (Fig. 1, Fig. 2) and the drawing crack type crag (Fig. 3, Fig. 4) that falls.Therefore, follow the crag damage feature, effectively carry out the prevention and cure project design, for guaranteeing the people life property safety, significant.The purpose of administering crag is to eliminate crag and destroys the potential safety hazard that resident, road, house, urban operating mechanism etc. below cliff or the abrupt slope are caused, the natural ecological environment on protection cliff or abrupt slope.
So far, still there is not special crag prevention and cure project design specifications both at home and abroad, only the technical system that crag is administered has been proposed more all sidedly in (DB50/5029-2004) in Chongqing City's provincial standard " hazards control engineering design standard ", comprise that initiatively Prevention Technique is (as anchoring, support, remove, grouting etc.), the passive protection technology is (as stone cut off wall, stone blocking net, block stone fence etc.) and active-passive associating Prevention Technique (administer and stone cut off wall as crag, stone blocking nets etc. are united use) three aspects, provided the spacing of anchor pole or anchor cable in detail, the inclination angle size, anchoring section length, reinforcing bar is selected for use, anchor head is provided with, braced structures type and construction material, grouting pressure, the stone cut off wall size, stone blocking net energy level height, the position of blocking, construction technology, or the like.
There is following significant deficiency in above crag improvement technology:
The first, have the method for designing Special attention will be given to construction measure that crag is administered technology now, because the master control architecture face at crag rear portion is difficult to accurately determine, the anchoring section that causes the crag support structure position to choose unreasonable, anchor pole or anchor cable is difficult to determine, the specific aim that directly causes crag to be prevented and treated is poor, regulation effect is difficult to guarantee, crag is administered and still is in subjective by rule of thumb design point at present.
The second, have proposition " support-anchor combined support technology " in the crag improvement technology now, therefore, do not see " crag support-anchor combined supporting method for designing " so far as yet, the crag body that part adopts support technology and anchoring to administer simultaneously, support with anchoring inharmonious, there are 80~90% error in resolution and actual conditions, the support load that the volume that braced structures often occurs is excessive, consumptive material is many, waste is big, self stability is poor, bear is not clear, and the anchoring section of anchor pole or anchor cable is unclear, anchoring load not clear.
Summary of the invention
Topple over the fall failure mode of type crag of type crag and drawing crack and all have the characteristics of toppling over and falling simultaneously at drawing to cut, the present invention combines braced structures and anchoring measure.Its technical scheme is: a kind of support-anchor combined protection and harness method for dangerous rock may further comprise the steps:
1) according to just deciding the anchoring position that the master control architecture face is tentatively chosen anchor pole or anchor cable;
2) search the actual master control architecture face of determining crag;
3) determine stable country rock zone behind the crag body,, determine that the rock mass of its rear portion backer's body one side is stable country rock promptly according to the appearance position of actual master control architecture face, and with its stress layer as anchor pole or anchor cable (being called bearing stratum again);
4) determine the position of centre of gravity of crag body;
5) determine the position of crag braced structures;
6) adjust the just fixed anchor pole or the anchoring position of anchor cable, and require to draft anchoring section length, anchor pole or anchor cable length, anchor pole or anchor cable spacing according to structure;
7) the stressed size of carrying of distribution crag braced structures and anchor pole or anchor cable;
8) design obtains crag support-anchor combined supporting administration structure in a conventional manner.
The described method of determining actual master control architecture face of searching is: the utilization rock drill is implemented the overlength boring of some on the crag body, and removal of core is checked the appearance position of determining the actual master control architecture face of rock mass in the rock core; The length of overlength boring surpasses just decides master control architecture face 5~8m, and its quantity is at least 3.
When determining the position of crag braced structures, make its center of effort be arranged on crag body weight heart outside 2~5m.
The distribution of the stressed size of carrying of crag braced structures and anchor pole or anchor cable distributes to crag braced structures, all the other vertical forces according to 70~80% of all vertical forces and pulling force is distributed to anchor pole or anchor cable distributes.
Advantage of the present invention is: 1, by anchor pole or anchor cable and the organic formation of braced structures two parts monomer structure, the pulling force, moment and the part gravity that make anchor pole or anchor cable resist the crag body to topple over, and bear the part deadweight of crag body with braced structures (formations such as available steel concrete or plain concrete, mortar flag stone, cemented rock), can bring into play the carrying advantage of every part administration structure simultaneously; 2, can determine support structure position and anchoring section position and stressed distribution thereof more exactly, avoid the blindness in the design; 3, workable, practical value is big.
Description of drawings
Fig. 1 topples over the type crag for drawing to cut;
Fig. 2 topples over type crag photo for drawing to cut;
Fig. 3 is the drawing crack type crag that falls;
Fig. 4 is the drawing crack type crag photo that falls;
Fig. 5 is a flow process of the present invention;
Fig. 6 is crag support-anchor combined supporting administration structure.
In the accompanying drawing, crag body 1, master control architecture face 2, anchor pole or anchor cable 3, braced structures 4, country rock 5, the crag body weight heart 0.
The specific embodiment
Support-anchor combined protection and harness method for dangerous rock may further comprise the steps:
1) suppresses the anchoring position that the definite crag master control architecture face (just deciding the master control architecture face) of the data of examining is tentatively chosen anchor pole or anchor cable according to geology;
2) search the actual master control architecture face of determining crag: the utilization rock drill is implemented the overlength boring of some on the crag body, and removal of core is checked the appearance position of determining the actual master control architecture face of rock mass in the rock core; The length of overlength boring surpasses just decides master control architecture face 5~8m, and its quantity is at least 3;
3) determine stable country rock zone behind the crag body,, determine that the rock mass of its rear portion backer's body one side is stable country rock promptly according to the appearance position of actual master control architecture face, and with its stress layer as anchor pole or anchor cable (being called bearing stratum again);
4) determine the position of centre of gravity of crag body;
5) determine the position of crag braced structures.When determining the position of crag braced structures, make its center of effort be arranged on crag body weight heart outside 2~5m;
6) adjust the just fixed anchor pole or the anchoring position of anchor cable, and require to draft anchoring section length, anchor pole or anchor cable length, anchor pole or anchor cable spacing according to structure;
7) the stressed size of the carrying of reasonable distribution crag braced structures and anchor pole or anchor cable, the distribution of the stressed size of carrying of crag braced structures and anchor pole or anchor cable distributes to braced structures, all the other vertical forces according to 70~80% of all vertical forces and pulling force is distributed to anchor pole or anchor cable distributes;
8) design acquisition crag support-anchor combined supporting administration structure at last in a conventional manner.
When the crag braced structures can not meet the demands its body stability owing to the orographic condition restriction, can adopt the supplementary structure measure to guarantee the stability of braced structures, the contact surface of braced structures top and crag and the ground of bottom are answered chipping (or introversion is step-like) and are satisfied requirement for bearing capacity.
Crag disaster quantity is many within Chinese territory; can reach billions of; disaster is serious; the present invention can strengthen " crag support-anchor combined supporting " validity, specific aim, reasonability in the control crag; eliminate crag and destroy the potential safety hazard that resident, road, house, urban operating mechanism etc. below cliff or the abrupt slope are caused, protect the natural ecological environment on cliff or abrupt slope simultaneously, therefore; application prospect is extremely extensive, will produce huge social, energy economy ﹠ environment benefit.

Claims (6)

1. support-anchor combined protection and harness method for dangerous rock may further comprise the steps:
1) according to just deciding the anchoring position that the master control architecture face is tentatively chosen anchor pole or anchor cable;
2) search the actual master control architecture face of determining crag;
3) determine stable country rock zone behind the crag body,, determine that the rock mass of its rear portion backer's body one side is stable country rock promptly according to the appearance position of actual master control architecture face, and with its stress layer as anchor pole or anchor cable;
4) determine the position of centre of gravity of crag body;
5) determine the position of crag braced structures;
6) adjust the just fixed anchor pole or the anchoring position of anchor cable, and require to draft anchoring section length, anchor pole or anchor cable length, anchor pole or anchor cable spacing according to structure;
7) the stressed size of carrying of distribution crag braced structures and anchor pole or anchor cable;
8) design obtains crag support-anchor combined supporting administration structure in a conventional manner.
2. support-anchor combined protection and harness method for dangerous rock according to claim 1, it is characterized in that: the described method of determining actual master control architecture face of searching is: the utilization rock drill is implemented the overlength boring of some on the crag body, removal of core is checked the appearance position of determining the actual master control architecture face of rock mass in the rock core.
3. support-anchor combined protection and harness method for dangerous rock according to claim 2 is characterized in that: the length of described overlength boring surpasses just decides master control architecture face 5~8m, and its quantity is at least 3.
4. support-anchor combined protection and harness method for dangerous rock according to claim 1 is characterized in that: when determining the position of crag braced structures, make its center of effort be arranged on the crag body weight heart outside.
5. support-anchor combined protection and harness method for dangerous rock according to claim 4 is characterized in that: the center of effort of described crag braced structures is arranged on crag body weight heart outside 2~5m.
6. support-anchor combined protection and harness method for dangerous rock according to claim 1 is characterized in that: the distribution of the stressed size of carrying of crag braced structures and anchor pole or anchor cable distributes to crag braced structures, all the other vertical forces according to 70~80% of all vertical forces and pulling force is distributed to anchor pole or anchor cable distributes.
CNB2006100543357A 2006-05-31 2006-05-31 Support-anchor combined protection and harness method for dangerous rock Expired - Fee Related CN100410456C (en)

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CN100410456C true CN100410456C (en) 2008-08-13

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105113521B (en) * 2015-09-18 2017-05-10 浙江科技学院 Net-rope-and-plug-linked-type landscape anchoring device used for preventing falling type dangerous rock
CN105672240B (en) * 2016-01-25 2017-06-27 黄河勘测规划设计有限公司 Inclining destruction type Dangerous Rock Body administering method
CN107326916A (en) * 2017-07-31 2017-11-07 中铁大桥局集团第五工程有限公司 A kind of rockfall means of defence
CN108193678B (en) * 2018-01-24 2019-10-29 中冶沈勘工程技术有限公司 The calculation method of rockwork anchor pole interaction boundary spacing and the ultimate pullout capacity calculation method of rockwork anchor pole
CN108179911A (en) * 2018-03-08 2018-06-19 中国地质科学院探矿工艺研究所 Collapse prevention and control project self-adaptive support structure and method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1096837A (en) * 1993-06-24 1994-12-28 陈国亮 Engineering method for consolidating mountain sliding surface and improving anti-sliding force
JP2004251073A (en) * 2003-02-21 2004-09-09 Raito Kogyo Co Ltd Rock fall preventing method
JP2004316374A (en) * 2003-04-21 2004-11-11 Daiwa Kogyo Kk Slope stabilizing method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1096837A (en) * 1993-06-24 1994-12-28 陈国亮 Engineering method for consolidating mountain sliding surface and improving anti-sliding force
JP2004251073A (en) * 2003-02-21 2004-09-09 Raito Kogyo Co Ltd Rock fall preventing method
JP2004316374A (en) * 2003-04-21 2004-11-11 Daiwa Kogyo Kk Slope stabilizing method

Non-Patent Citations (8)

* Cited by examiner, † Cited by third party
Title
三峡库区危岩综合治理技术及应用. 陈洪凯,欧阳仲春,廖世荣.地下空间,第22卷第2期. 2002
三峡库区危岩综合治理技术及应用. 陈洪凯,欧阳仲春,廖世荣.地下空间,第22卷第2期. 2002 *
危岩支撑及支撑-锚固联合计算方法研究. 陈洪凯,唐红梅,刘光华,胡明,吴四飞.岩土工程学报,第26卷第3期. 2004
危岩支撑及支撑-锚固联合计算方法研究. 陈洪凯,唐红梅,刘光华,胡明,吴四飞.岩土工程学报,第26卷第3期. 2004 *
特开2004-251073A 2004.09.09
特开2004-316374A 2004.11.11
重庆市云阳县磨子岭危岩研究与治理. 叶四桥,唐良琴,陈洪凯,唐红梅.地质灾害与环境保护,第16卷第1期. 2005
重庆市云阳县磨子岭危岩研究与治理. 叶四桥,唐良琴,陈洪凯,唐红梅.地质灾害与环境保护,第16卷第1期. 2005 *

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Effective date of registration: 20081128

Address after: No. 66, Xuefu Avenue, Nan'an District, Chongqing: 400074

Patentee after: chongqing jiaotong university

Address before: Institute of geotechnical engineering, Chongqing Jiaotong University, Nan'an District, Chongqing: 400074

Co-patentee before: Tang Hongmei

Patentee before: Chen Hong Kai

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