CN103410149A - Grouting method for bedrock under deep water conditions - Google Patents
Grouting method for bedrock under deep water conditions Download PDFInfo
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- CN103410149A CN103410149A CN2013103424453A CN201310342445A CN103410149A CN 103410149 A CN103410149 A CN 103410149A CN 2013103424453 A CN2013103424453 A CN 2013103424453A CN 201310342445 A CN201310342445 A CN 201310342445A CN 103410149 A CN103410149 A CN 103410149A
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Abstract
A grouting method for bedrock under deep water conditions comprises the steps of positioning pier ships on water surface, wherein the two pier ships are arranged in parallel, anchored, positioned and fixedly connected, and a drilling rig is arranged between the two pier ships; an underwater casing pipe installation mode is applied between the water surface and an underwater bedrock surface, an underwater casing pipe is arranged between the water surface and the underwater bedrock surface, the lower end of the underwater casing pipe is inserted into the bedrock, the upper end of the underwater casing pipe is exposed above the water surface, and the underwater casing pipe is limited and fixed; an inner pipe and a dial indicator are arranged inside the underwater casing pipe; after the underwater casing pipe is installed and fixed, a drill rod and drill bit with a bore smaller than that of the underwater casing pipe are utilized in the underwater casing pipe, and conventional drilling is performed inside the underwater casing pipe through a core drill. According to the grouting method for the bedrock under the deep water conditions, construction difficulty of grouting curtain and consolidation grouting of bedrock under deep water conditions is solved, the effect that drilling and grouting of the bedrock under the deep water conditions are just like those of rock on land can be achieved, the construction is quick, simple, economic, reliable and safe, the operational needs of production can be met well, and good economic benefits are obtained.
Description
Technical field
Basement rock grouting method under a kind of deep water conditions of the present invention, belong to basement rock grouting technique field under water.Be applicable to basement rock cement under deep water conditions or the use of certain special chemical preparation, the suitable especially grouting works that basement rock under concrete floor is arranged under water.
Background technology
On land, by boring, grouting, build the leakage preventing structure that is the curtain on the likeness in form stage on ribbon, facade on continuous, complete, plane lower than basement rock permeability together.Utilize this structure to carry out basement rock and prevent blending the leak stopping that intercepts water.Referred to as " grouted cut off wall "; By boring, with slurries, pour into rock cranny or zone of fracture, take the globality that improves rock mass and non-deformability as the grouting of main purpose, be called " consolidation grouting ".No matter grouted cut off wall or consolidation grouting, both have two large classes, the one, cement grout, the 2nd, chemical grout usually at the slurries that use that are in the milk.In Practical Project, the standard of carrying out according to the difference of grouting slurry material is different.
Cementation is carried out according to " hydraulic structure cementation construction technique normalizing " (DL/T 5148-2012), grouting method is according to different geological conditionss and engine request, and grouted cut off wall can be selected packer grouting method from top to bottom, packer grouting method from bottom to top, comprehensive grouting or aperture closure grouting method.According to the difference of reperfusion serosity and grouting method, should correspondingly select circulating grouting or the grouting of pure pressure type; Consolidation grouting, according to different geological conditionss and engine request, can be selected full hole once grouting method, packer grouting method from bottom to top, packer grouting method from top to bottom, also can adopt aperture closure grouting method or comprehensive grouting.Chemical grouting is carried out according to " hydraulic structure chemical grouting job specfication " (DL/T 5406-2010).Grouting method is according to different geological conditionss and engine request, and grouting method can be selected full hole once grouting method, packer grouting method from top to bottom, packer grouting method from bottom to top.Below no matter grouted cut off wall or consolidation grouting all should be by hole array pitch, the hole sequences of design code, by row, encrypt and carry out by order.
If when requirement of engineering, complete " curtain, fixed " when grouting in basement rock under deep water conditions, how simple, economical, safe, safely, the carrying out of ensuring the quality of products, be namely the current technical problem that will solve.
Summary of the invention
The invention provides the basement rock grouting method under a kind of deep water conditions, by adopting special pore-creating means and measure, solve the grouted cut off wall in basement rock, consolidation grouting construction difficult problem under deep water conditions.Make it fully as the boring in basement rock under the condition of land, grouting.The method is simple, economical, safe, safely, ensure the quality of products.
The technical scheme that the present invention takes is: the basement rock grouting method under a kind of deep water conditions comprises the following steps:
1), water surface location pier ship step: two pier ship laid parallels, the location of casting anchor, be fixedly connected with between two pier ships, rig is fixedly installed between two pier ships;
2), sleeve pipe installation steps: at the water surface, between bedrock surface, adopting mounting sleeve mode under water under water, form sleeve pipe under water, described sleeve bottom under water lower end embeds basement rock, surface in upper end and spacing fixing;
3), lifting device installation steps under water: sleeve pipe is installed inner tube, dial gauge under water;
4), sleeve pipe internal drilling step: after sleeve pipe installation under water is fixing, then take than drilling rod, the drill bit of the bore that collar aperture is little under water in collar aperture under water, carries out routine boring with rock core drill in collar aperture under water.
Described grouting method comprises and covers the heavy industry skill: if be exposed clean bedrock surface under water, the Water quality of take is that lid weight technology is implemented the operation of being in the milk; If while having concrete slab to be in the milk to basement rock under plate under water, the Water quality of take adds that concrete slab is lid weight technology, implements the grouting operation.
In the pier ship step of described water surface location: two pier ship laid parallels, throw the ship anchor position, between two pier ships, be fixedly connected with by i iron, lumps of wood member, rig is fixedly installed on two i iron, lumps of wood member between the pier ship.
In the described installation steps of sleeve pipe under water: the top mouth that surfaces of sleeve pipe upper end be take the pier ship and is support under water, fixes.
Basement rock grouting method under a kind of deep water conditions of the present invention, the lifting device mounting method, be convenient to lift observation under water; In sleeve pipe, bore orifice method, boring is completed smoothly; If while being exposed clean bedrock surface under water, can consider take that Water quality is heavy as covering, implement the grouting operation, if while having concrete slab to be in the milk to basement rock under plate, can consider take that water body adds that concrete slab is heavy as covering, and implements grouting operation etc. under water.Solved basement rock " grouted cut off wall, the consolidation grouting " construction difficult problem under deep water conditions.Accomplished to complete as basement rock internal drilling by land, grouting convenient simple, economic, safe, the safety of constructing.Meet greatly the production work needs, embodied good economic benefit.
The accompanying drawing explanation
The invention will be further described below in conjunction with drawings and Examples:
Fig. 1 is that the present invention bores filling platform structure schematic diagram.
Fig. 2 is the A section zoomed-in view of Fig. 1.
Fig. 3 is lifting device scheme of installation of the present invention.
Fig. 4 is process chart of the present invention.
In Reference numeral: 12 is grout pump, and 13 is grout pipe, and 14 is disabler, and 15 is crack, and 16 is spacing ring, and 17 is the small-bore mouth, and 18 is cement mortar, and 19 is the gypsum butter.
The specific embodiment
As Fig. 1 ~ shown in Figure 3, the basement rock grouting method under a kind of deep water conditions comprises the following steps:
1), utilize pier ship 1 to build the well cementing platform, put the facilities and equipments such as rig 2, grout pump 12, cement warehouse, mixer.Two pier ship 1 laid parallels, throw ship anchor 9 location, by i iron, lumps of wood member 10, is fixedly connected with between two pier ships 1, and rig 2 is fixedly installed in passing through on i iron, lumps of wood member 10 between two pier ships 1.The setting-out of can holing, the boring setting-out can take to measure and the underwater diver fit system carries out.
2), before boring, carry out smoothly for making boring, between bedrock surface 4, adopting mounting sleeve mode under water to form sleeve pipe 5 under water under water, sleeve pipe 5 lower ends, bottom embed basement rock 6 under water at the water surface 3, and the sleeve pipe 5 tops mouthful 30 ~ 50cm that surfaces gets final product under water.First adopt φ 89mm ~ 110mm sleeve pipe to work as drilling rod, sleeve bottom is installed φ 89mm ~ 110mm diamond bit, pierce basement rock 10cm ~ 20cm, and bottom is fixed in basement rock 6 according to this, sleeve pipe 5 surfaces under water, and to take pier ship 1 be to rely on for 3 top mouth, carry out the spacing fixing of flat orientation, prevent that excessive planar movement from causing the sleeve bottom lower end to embed basement rock and partly being drawn and split destruction.
3), lifting device installation steps under water: sleeve pipe 5 is installed inner tubes 7, dial gauge 8 under water.
4), sleeve pipe internal drilling step: when sleeve pipe under water 5 install fixing after, then in collar aperture, take the bore less than collar aperture, as the drilling rod 11 of φ 50mm, the diamond bit of joining φ 59mm, in collar aperture, carry out routine with rock core drill and hole.
5), grouting: boring reaches the regulation grout compartment, press engine request and selects grouting to starch material, then by the grouting method of stipulating in corresponding codes and standards, the operation of being in the milk.Described grouting method comprises and covers the heavy industry skill: if be exposed clean bedrock surface 4 under water, the Water quality of take is that lid weight technology is implemented the operation of being in the milk; If while having concrete slab to be in the milk to basement rock under plate under water, the Water quality of take adds that concrete slab is lid weight technology, implements the grouting operation.
6), sealing of hole: after grout hole grouting finishes, by the method for sealing use water/binder ratio of stipulating in corresponding codes and standards, be 0.5 slurries, thin pulp or ponding in the displacement hole, adopt full hole grouting sealing of hole;
7), the recycle-water setting of casing: after grouting finishes, with rock core drill anti-the brill mode reclaim basket, when leaving undesirable root, adopt the diver to coordinate and cut off recovery under water.
The present invention is applicable to basement rock cement under deep water conditions or the use of certain special chemical preparation, the suitable especially grouting works that basement rock under concrete floor is arranged under water.Such as: the positions such as absorption basin base plate.
Claims (4)
1. the basement rock grouting method under a deep water conditions is characterized in that comprising the following steps:
1), water surface location pier ship step: two pier ships (1) laid parallel, the location of casting anchor, be fixedly connected with between two pier ships (1), rig (2) is fixedly installed between two pier ships (1);
2), sleeve pipe installation steps: at the water surface (3) between bedrock surface (4), adopting mounting sleeve mode under water under water, form sleeve pipe (5) under water, lower end, described sleeve pipe under water (5) bottom embeds basement rock (6), surface (3) in upper end, and described sleeve pipe under water (5) is spacing fixing;
3), lifting device installation steps under water: sleeve pipe (5) is installed inner tube (7), dial gauge (8) under water;
4), sleeve pipe internal drilling step: after sleeve pipe (5) installation under water is fixing, then carry out routine boring with rock core drill in sleeve pipe (5) hole under water.
2. the basement rock grouting method under a kind of deep water conditions according to claim 1, is characterized in that, described grouting method comprises and covers the heavy industry skill: if be exposed clean bedrock surface (4) under water, the Water quality of take is that lid weight technology is implemented the operation of being in the milk; If while having concrete slab to be in the milk to basement rock under plate under water, the Water quality of take adds that concrete slab is lid weight technology, implements the grouting operation.
3. the basement rock grouting method under a kind of deep water conditions according to claim 1, it is characterized in that, in the pier ship step of described water surface location: two pier ships (1) laid parallel, throw ship anchor (9) location, between two pier ships (1), be fixedly connected with by i iron, lumps of wood member (10), rig (2) is fixedly installed on i iron between two pier ships (1), lumps of wood member (10).
4. the basement rock grouting method under a kind of deep water conditions according to claim 1, is characterized in that, in described sleeve pipe installation steps: sleeve pipe (5) surfaces under water, and to take pier ship (1) be to rely on for the top mouth of (3), carries out the spacing fixing of flat orientation.
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| CN2013103424453A CN103410149A (en) | 2013-08-08 | 2013-08-08 | Grouting method for bedrock under deep water conditions |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669347A (en) * | 2013-12-31 | 2014-03-26 | 葛洲坝集团试验检测有限公司 | Underwater anchor rod construction method |
| CN105951700A (en) * | 2016-05-13 | 2016-09-21 | 林森 | Grouting construction method based on offshore drilling platform technology |
| CN106400860A (en) * | 2016-11-25 | 2017-02-15 | 中国水电基础局有限公司 | Maritime work stone foundation bed reinforcing method and device |
| CN106400807A (en) * | 2016-11-25 | 2017-02-15 | 中国水电基础局有限公司 | Maritime work barge grouting method and device thereof |
| CN106400745A (en) * | 2016-11-25 | 2017-02-15 | 中国水电基础局有限公司 | Maritime work barge operation method and device |
| CN113216142A (en) * | 2021-05-08 | 2021-08-06 | 中铁十一局集团有限公司 | Grouting treatment method and system for underwater karst cave in karst development area |
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| US4655638A (en) * | 1986-06-12 | 1987-04-07 | Gelco Grouting Service | Waterstop for monolith joints and method |
| CN101654907A (en) * | 2009-09-11 | 2010-02-24 | 中国水利水电第九工程局有限公司 | High-flow high-speed jet plugging grouting technique under high-pressure water head of hydropower station |
| CN102605781A (en) * | 2012-04-10 | 2012-07-25 | 中交二公局第三工程有限公司 | Rocky bed steel pipe pile sinking construction process |
| CN102966111A (en) * | 2012-12-13 | 2013-03-13 | 中铁上海工程局第二工程有限公司 | Construction method for anchoring steel pipe pile on steep bare rock without covering layer in deep water and rapids |
| CN103184736A (en) * | 2013-03-18 | 2013-07-03 | 中国水利水电第七工程局成都水电建设工程有限公司 | Method of isolating non-grouting sections for geological chemical grouting |
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2013
- 2013-08-08 CN CN2013103424453A patent/CN103410149A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4655638A (en) * | 1986-06-12 | 1987-04-07 | Gelco Grouting Service | Waterstop for monolith joints and method |
| CN101654907A (en) * | 2009-09-11 | 2010-02-24 | 中国水利水电第九工程局有限公司 | High-flow high-speed jet plugging grouting technique under high-pressure water head of hydropower station |
| CN102605781A (en) * | 2012-04-10 | 2012-07-25 | 中交二公局第三工程有限公司 | Rocky bed steel pipe pile sinking construction process |
| CN102966111A (en) * | 2012-12-13 | 2013-03-13 | 中铁上海工程局第二工程有限公司 | Construction method for anchoring steel pipe pile on steep bare rock without covering layer in deep water and rapids |
| CN103184736A (en) * | 2013-03-18 | 2013-07-03 | 中国水利水电第七工程局成都水电建设工程有限公司 | Method of isolating non-grouting sections for geological chemical grouting |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669347A (en) * | 2013-12-31 | 2014-03-26 | 葛洲坝集团试验检测有限公司 | Underwater anchor rod construction method |
| CN105951700A (en) * | 2016-05-13 | 2016-09-21 | 林森 | Grouting construction method based on offshore drilling platform technology |
| CN106400860A (en) * | 2016-11-25 | 2017-02-15 | 中国水电基础局有限公司 | Maritime work stone foundation bed reinforcing method and device |
| CN106400807A (en) * | 2016-11-25 | 2017-02-15 | 中国水电基础局有限公司 | Maritime work barge grouting method and device thereof |
| CN106400745A (en) * | 2016-11-25 | 2017-02-15 | 中国水电基础局有限公司 | Maritime work barge operation method and device |
| CN106400860B (en) * | 2016-11-25 | 2018-10-19 | 中国水电基础局有限公司 | Extra large work block ground mass bed reinforcement means and equipment |
| CN106400807B (en) * | 2016-11-25 | 2018-10-19 | 中国水电基础局有限公司 | Extra large work barge grouting method and its equipment |
| CN113216142A (en) * | 2021-05-08 | 2021-08-06 | 中铁十一局集团有限公司 | Grouting treatment method and system for underwater karst cave in karst development area |
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Application publication date: 20131127 |
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