CN109141573A - Water level warning algorithm after a kind of water bursting in mine - Google Patents
Water level warning algorithm after a kind of water bursting in mine Download PDFInfo
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- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
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Abstract
The present invention relates to water level warning algorithms after a kind of water bursting in mine, belong to field of coal mine safety.Water bursting in mine accident is sudden strong, breaks with tremendous force, tends not to make accurate judgment to gushing water intensity, the infringement range of floods, delay the disaster relief time.To solve the problems, such as water level early warning after water bursting in mine, The present invention gives standards and method that water level sensor is arranged according to mine laneway connected graph；The water level information obtained according to water level sensor, by reconstructing mine laneway connected graph, calculate node capacity, water level cut set, after obtaining underground anywhere gushing water, the variation of water level and water inrush quantity, the relationship of tunnel submergence ratio in each water level cut set (being made of several tunnels), and then determine that water bursting in mine intensity and mine are flooded range.
Description
Technical field
The present invention relates to water level warning algorithms after water bursting in mine, are specially applicable in different water bursting in mine intensity, are flooded range
Prior-warning device and method.
Background technique
Mine water disaster accident breaks with tremendous force, quickly grows, it is serious to endanger, due to the sudden and unpredictability of accident,
Often prevent disaster relief commander to the infringement range, process, the extent of injury of floods from making accurate judgment, the delay disaster relief time,
Best disaster relief opportunity is lost, casualty loss is expanded.After floods occur, mine laneway system (including goaf), which becomes to accommodate, dashes forward
The container of water causes tunnel to flood the multifarious of sequence due to the difference in gushing water place, the complexity of underground network structure,
By the early warning of gushing water inundated mine tunnel range, flood information can be provided in time for disaster relief commander, can dropped to the maximum extent
Low mine water disaster bring casualties and economic loss.
Summary of the invention
The present invention is specially a kind of distribution method of water level sensor, determines water inrush quantity with according to water level, lane is flooded in determination
The method of road range.
Water level warning algorithm after a kind of water bursting in mine, includes the following steps:
(1) according to mine laneway connected graph arrangement water level sensor according to mine laneway connected graph, most with each part of connected graph
Low absolute altitude node (coxopodite point) is starting point, and first as water level sensor sets place, and selection standard is that the node only has on uniclinal
Oblique branch；The signal output end of water level sensor is sent to monitoring center.
Node-classification: the node for being laid with the mine part minimum point of water level sensor is known as coxopodite point；Exist simultaneously list
The node in oblique tunnel on oblique and uniclinal of inclining is known as waist point；The node in the only oblique tunnel of uniclinal is known as top node.
(2) calculate the total capacity of each node: excessively a certain " coxopodite point " makees a horizontal plane, is connected to band absolute altitude mine laneway
Figure is cut, and the tunnel of horizontal plane lower part is removed, the node on retention level face, while it is closest and have to remove upper part
The tunnel on the connected knee level face top in tunnel, then remove the tunnel not being connected to the node between two horizontal planes, it calculates
The water capacity in remaining tunnel is as somebody's turn to do the total capacity of " coxopodite point "；It crosses a certain " top node " and makees a horizontal plane, to band absolute altitude mine
Tunnel connected graph is cut, and the tunnel on horizontal plane top is removed, the node on retention level face, calculates the appearance in remaining tunnel
Water is as somebody's turn to do the total capacity of " top node "；Cross a certain " waist point " make a horizontal plane, to band absolute altitude mine laneway connected graph into
Row cutting, the tunnel on horizontal plane top is removed, the node on retention level face, while removing the lane not being connected to the node
Road calculates the water capacity in remaining tunnel, is as somebody's turn to do the node total capacity of " waist point ".
Water level cut set: gathered after water bursting in mine by the tunnel that part water inlet tunnel forms.Water level cut set is corresponding with node,
The water level cut set of each node is tunnel used when calculating the node total capacity, then removes the tunnel to intake completely.Mine
Tunnel connected graph is made of three tunnel collection: tunnel collection of not intaking, part water inlet tunnel collection and being flooded tunnel collection completely.For
The same mine, the tunnel that gushing water occurs is different, even if water inrush quantity is the same, water level cut set is not also identical, and each tunnel is flooded
Order and flooding time be not also identical.
Node water breakthrough capacity: waist point water breakthrough capacity refers to that water level has just reached the water level cut set tunnel of " waist point "
When, horizontal plane inflow below where the node；Top node water breakthrough capacity refers to that water level has just reached the water of " top node "
When the cut set tunnel of position, horizontal plane inflow below where the node；Coxopodite point does not consider node water breakthrough capacity.
(3) gushing water floods tunnel horizon prediction: 1. in practical gushing water early warning, when water inrush accident occurs for mine somewhere tunnel
When, the node that water flow is passed through after gushing water is respectively one kind of " coxopodite point " and " waist point "；If what water flow was passed through after gushing water is " waist
Node ", water flow are to flow to other nodes by the oblique tunnel of uniclinal of the node, are " coxopodite point " water level afterwards until encountering node
It begins to ramp up, if the oblique tunnel of uniclinal of water flow is passed through after gushing water " waist point " is all flooded completely, water level can be after
It is continuous to rise；If water flow flows into " coxopodite point " after gushing water, tunnel above " coxopodite point " is flooded first, forms a water level cut set；If
After gushing water water flow pass through be " top node ", water flow can flow to the unidirectional oblique tunnel that do not flooded completely, until with " the epimerite
The connected tunnel of point " is flooded completely；Water flow may flow to multiple " coxopodite points " by " waist point " after gushing water.
2. the application of water level cut set: in same water level cut set, the SEA LEVEL VARIATION in each tunnel is consistent, due to every lane
Road branch inclination angle is certain, while drift section area is unchanged, and the variation relation between water level and water is linear；Therefore same
In one water level cut set, water inrush quantity can be calculated according to SEA LEVEL VARIATION and floods tunnel range.
The prediction of water level and water inrush quantity when 3. water level passes through node: according to connected graph and the letter of each water level sensor
Breath, changes water level cut set in conjunction with the situation of change of water level in real time, utilizes the line of SEA LEVEL VARIATION and water inrush quantity in same water level cut set
Sexual intercourse obtains the water inrush quantity i.e. gushing water intensity of unit time.In the water level cut set tunnel of " coxopodite point ", by node total capacity
Divided by gushing water intensity, the time that real-time water level rests on the node water level cut set is obtained, water level enters after the time
Next water level cut set, and continue to go up；In the water level cut set tunnel of " waist point " and " top node ", by the node total capacity
Its node water breakthrough capacity is subtracted, " water capacity " of real-time node is obtained, by the node " water capacity " divided by gushing water intensity, is obtained
Real-time water level stops the time on this node, and water level enters next water level cut set after the time, and continues to go up.
(4) the determination method of water bursting in mine intensity: the area cut according to each tunnel contained in same water level cut set by horizontal plane,
And the water level rate of climb detected by water level sensor, obtain real-time gushing water intensity.
The present invention calculates the total capacity of each node by the way that mine node is carried out Rational Classification in advance, after being
Continuous practical early warning work provides the foundation；The it is proposed of water level cut set concept facilitate the water level in water level uphill process calculate and
Prediction；The setting position of water level sensor can more effectively monitor the gushing water situation in tunnel, while when gushing water being facilitated to occur
The calculating of node water breakthrough capacity, and then know real-time SEA LEVEL VARIATION situation and tunnel water inlet situation.
Further, step (3) 3. in when calculating the water capacity of each node, by the corresponding water level cut set of node
Water level sensor acquisition SEA LEVEL VARIATION data, real-time update gushing water intensity.
In calculate node water breakthrough capacity, the value of gushing water intensity is to constantly update, to the meter of the water capacity of some node
Calculating is also real-time update, can obtain more accurate SEA LEVEL VARIATION situation in this way, notify that personnel in the pit is safe and orderly in time
It withdraws.
The present invention scientific and effective can carry out early warning to water bursting in mine situation, go out well in conjunction with mine connected graph look-ahead
Situation is flooded in the situation of change of lower water level and tunnel, ensures the safety of underground operators to greatest extent.
Detailed description of the invention
Fig. 1 is a mine laneway solid connected graph cited in the embodiment of the present invention.
Specific embodiment
Water level sensor is postponed by step (1) cloth, after mine anywhere gushing water, can ensure water bursting in mine information and
When obtain；The water level sensor can also continue to provide the water level of the node updip branch at any time in process later simultaneously
Changing rule.
Mine laneway connected graph as described in step (1) reconstructs with the following method: with the method reconstruct for increasing node
Mine original tunnel connected graph, is divided into several straightways for the tunnel for having dipping and heaving or section variation, will be with mesh by connected relation
Preceding roadway system has the goaf of hydraulic connection and Abandoned Tunnel that roadway system is added, will even according to each tunnel section actual elevation
Tunnel section in logical figure is completely converted into unidirectional inclined shaft section.Such connected graph is conveniently used to carry out to calculate and early warning.
Embodiment is in order to reflect the absolute altitude in tunnel, in tunnel on the basis of connected graph, by each section of mine laneway connected graph
Point assigns node absolute altitude, forms mine laneway solid connected graph, as shown in Figure 1.Mine laneway solid connected graph can reflect lane
The connection relationship in road, and can reflect the variation of tunnel absolute altitude, thus when can predict tunnel gushing water using the figure water flow direction.
Water level sensor setting: with the minimum node in part each in three-dimensional connected graph for first reconnaissance, on relatively more each " coxopodite point "
The water breakthrough capacity of node in uniclinal Shang Xie branch of portion chooses water breakthrough capacity the greater and preferentially arranges water level sensor.
Select v3, v5, v17, v19 for first reconnaissance in Fig. 1, the water breakthrough capacity of more each just reconnaissance upper node obtains water
The order of priority of level sensor arrangement: v3 > v19 > v5 > v17.
Gushing water floods tunnel horizon prediction.In Fig. 1, if water inrush accident occurs in the tunnel e10, water flow can flow first to v10
Node.Since v10 node is waist point, water flow can flow to other nodes by the unidirectional oblique tunnel (e7, e8) of v10 node,
A part of gushing water flows to v17 node by the tunnel e8, and v17 node is coxopodite point, and water level can start to go up in v17 node, in water
Before position does not reach v10 node, tri- tunnel e8, e11, e12 is partially flooded with (L3 is below horizontal)；Another part gushing water passes through the lane e7
Road flows to v8 node, and v8 node is waist point, and water flow can flow to v6 node, v6 node by the unidirectional oblique tunnel e6 of v8 node
It is all waist point, water flow can flow to v5 node by the unidirectional oblique tunnel e5 of v6 node, and v5 node is coxopodite point, and water level can be
V5 node starts to go up, and before water level does not reach v4 node, tri- tunnel e4, e15, e5 is partially flooded with (L1 is below horizontal).Shape
At two node water level cut sets of v17 and v5.
For v17 node, after water level reaches v10 node, water level temporarily ceases rising, and water flow enters the tunnel e7, by e7,
The tunnel e6, e5 enters v5 node, forms v17 node water level and stops rising, gushing water all flows into v5 node.For v5 node, water
After position reaches v4 node, water level temporarily ceases rising, and water flow enters the tunnel e3, and until the tunnel e1, e2, e3, water level reaches v4 node
When, water level just will continue to rise, and the water for flowing into the tunnel e1, e2, e3 becomes the node water capacity of v4 node.
With the rising of water level, two water level cut sets are initially formed, are v17 water level cut set { e8, e11, e12 } and v5 respectively
Water level cut set { e4, e15, e5 }, water flow through v10 node flow into the tunnel e7 after, by e7, e6, e5 enter v5 water level cut set e4,
E15, e5 }, water flows through v4 node inflow e3 and forms v4 water level cut set { e3, e2, e1 } again, and water level is formed again after being higher than v4 node
V6 water level cut set { e5, e15, e14, e2, e1 }, therefore according to water level can judge that range is flooded in tunnel.
The quantity of water level sensor setting directly affects the precision of prediction that gushing water floods tunnel range, and error derives from
Sensor node is not set, the water breakthrough capacity of node in the uniclinal Shang Xie branch of top.
The determination of water bursting in mine intensity: height of water level is obtained according to water level sensor, judges that current water level is cut according to water level
Concentrate contained tunnel, as shown in Figure 1, if water level between v4, v6 node, according to each tunnel contained in water level cut set e5,
E15, e14, e2, e1 } by the area (where horizontal plane L1 to v6 node between horizontal plane) of horizontal plane cutting, with raising speed on water level
Degree obtains gushing water intensity.
Claims (4)
1. water level warning algorithm after a kind of water bursting in mine, which comprises the steps of:
(1) according to mine laneway connected graph arrangement water level sensor according to mine laneway connected graph, most with each part of connected graph
Low absolute altitude node is starting point, and first as water level sensor sets place, and selection standard is that the node only has branch oblique on uniclinal；
The signal output end of water level sensor is sent to monitoring center；
Node-classification: the node for being laid with the mine part minimum point of water level sensor is known as coxopodite point；It exists simultaneously under uniclinal
The node in oblique tunnel is known as waist point tiltedly and on uniclinal；The node in the only oblique tunnel of uniclinal is known as top node；
(2) it calculates the total capacity of each node: side view connected graph is drawn according to node absolute altitude, it is excessively a certain according to the absolute altitude of each node
" coxopodite point " makees a horizontal plane, cuts to band absolute altitude mine laneway connected graph, the tunnel of horizontal plane lower part is removed, retain
Node on horizontal plane, while removing that upper part is closest and the tunnel on the knee level face top that has tunnel connected, then remove
The tunnel not being connected to the node between two horizontal planes calculates the water capacity in remaining tunnel, is as somebody's turn to do total appearance of " coxopodite point "
Amount；It crosses a certain " top node " and makees a horizontal plane, band absolute altitude mine laneway connected graph is cut, by the tunnel on horizontal plane top
Remove, the node on retention level face, calculates the water capacity in remaining tunnel, be as somebody's turn to do the total capacity of " top node "；Cross a certain " waist
Node " makees a horizontal plane, cuts to band absolute altitude mine laneway connected graph, the tunnel on horizontal plane top is removed, retain water
Node in plane, while removing the tunnel not being connected to the node, the water capacity in remaining tunnel is calculated, is as somebody's turn to do " waist point "
Node total capacity；
Water level cut set: gathered after water bursting in mine by the tunnel that part water inlet tunnel forms；Water level cut set is corresponding with node, each
The water level cut set of node is tunnel used when calculating the node total capacity, then removes the tunnel to intake completely；Mine laneway
Connected graph is made of three tunnel collection: tunnel collection of not intaking, part water inlet tunnel collection and being flooded tunnel collection completely；For same
A mine, the tunnel that gushing water occurs is different, even if water inrush quantity is the same, water level cut set is not also identical, and order is flooded in each tunnel
It is also not identical with flooding time；
Node water breakthrough capacity:, should when waist point water breakthrough capacity refers to that water level has just reached the water level cut set tunnel of " waist point "
Horizontal plane inflow below where node；Top node water breakthrough capacity refers to that water level has just reached the water level cut set of " top node "
When tunnel, horizontal plane inflow below where the node；Coxopodite point does not consider node water breakthrough capacity；
(3) gushing water floods tunnel horizon prediction: 1. in practical gushing water early warning, when water inrush accident occurs for mine somewhere tunnel, dashing forward
The node that water flow is passed through after water is respectively one kind of " coxopodite point " and " waist point "；If what water flow was passed through after gushing water is " waist section
Point ", water flow are to flow to other nodes by the oblique tunnel of uniclinal of the node, are that " coxopodite point " water level is opened afterwards until encountering node
Begin to rise, if the oblique tunnel of the uniclinal of water flow is passed through after gushing water " waist point " is all flooded completely, water level be will continue to
Rise；If water flow flows into " coxopodite point " after gushing water, tunnel above " coxopodite point " is flooded first, forms a water level cut set；If
After gushing water water flow pass through be " top node ", water flow can flow to the unidirectional oblique tunnel that do not flooded completely, until with " the epimerite
The connected tunnel of point " is flooded completely；Water flow may flow to multiple " coxopodite points " by " waist point " after gushing water；
2. the application of water level cut set: in same water level cut set, the SEA LEVEL VARIATION in each tunnel is consistent, due to every tunnel branch
Inclination angle is certain, while drift section area is unchanged, and the variation relation between water level and water is linear；Therefore in same water level
In cut set, water inrush quantity can be calculated according to SEA LEVEL VARIATION and floods tunnel range；
The prediction of water level and water inrush quantity when 3. water level passes through node: according to the information of connected graph and each water level sensor, knot
The situation of change of Heshui position changes water level cut set in real time, utilizes the linear pass of SEA LEVEL VARIATION and water inrush quantity in same water level cut set
System, obtains the water inrush quantity i.e. gushing water intensity of unit time；In the water level cut set tunnel of " coxopodite point ", by node total capacity divided by
Gushing water intensity obtains the time that real-time water level rests on the node water level cut set, and water level enters next after the time
A water level cut set, and continue to go up；In the water level cut set tunnel of " waist point " and " top node ", which is subtracted
Its node water breakthrough capacity, obtains " water capacity " of real-time node, by the node " water capacity " divided by gushing water intensity, obtains real-time
Water level stop time on this node, water level enters next water level cut set after the time, and continues to go up；
(4) the determination method of water bursting in mine intensity: horizontal according to each tunnel contained in water level cut set in same water level cut set
The area of face cutting, and the water level rate of climb that the water level sensor by being located in the water level cut set is detected, obtain real
When gushing water intensity.
2. water level warning algorithm after a kind of water bursting in mine as described in claim 1, which is characterized in that step (3) 3. in
When calculating the water capacity of each node, the SEA LEVEL VARIATION data acquired by the water level sensor in the corresponding water level cut set of node,
Real-time update gushing water intensity.
3. water level warning algorithm after a kind of water bursting in mine as claimed in claim 1 or 2, which is characterized in that step (1) respectively with
Each coxopodite point is gushing water source, if water inrush quantity is equal to G, gushing water has been flowed into other branches, then removes the coxopodite point, remaining each coxopodite
Point is water level sensor coxopodite point.
4. water level warning algorithm after a kind of water bursting in mine as claimed in claim 1 or 2, which is characterized in that described in step (1)
Mine laneway connected graph reconstruct with the following method: with increase node method reconstruct mine original tunnel connected graph, will have
The tunnel of dipping and heaving or section variation is divided into several straightways, will have hydraulic connection with current roadway system by connected relation
Roadway system is added in goaf and Abandoned Tunnel, and according to each tunnel section actual elevation, the tunnel section in connected graph is totally converted
For unidirectional inclined shaft section.
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