CN108678737A - Method for observing fracture permeability of variable-pressure adjustable rock mass - Google Patents

Method for observing fracture permeability of variable-pressure adjustable rock mass Download PDF

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Publication number
CN108678737A
CN108678737A CN201810375972.7A CN201810375972A CN108678737A CN 108678737 A CN108678737 A CN 108678737A CN 201810375972 A CN201810375972 A CN 201810375972A CN 108678737 A CN108678737 A CN 108678737A
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China
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water
pressure
hole
inner ring
occluder
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CN201810375972.7A
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Chinese (zh)
Inventor
宋文成
梁正召
乔俊杰
马克
李迎春
郎颖娴
沙润东
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大连理工大学
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Priority to CN201810375972.7A priority Critical patent/CN108678737A/en
Publication of CN108678737A publication Critical patent/CN108678737A/en

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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/008Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by injection test; by analysing pressure variations in an injection or production test, e.g. for estimating the skin factor

Abstract

The invention belongs to the technical field of rock mass permeability measurement, and relates to a method for observing fracture permeability of variable-pressure adjustable rock mass. The connection relationship of the device used is as follows: a converter thread is connected to the rear part of a front plugger, and the inner part of the converter thread comprises an inner ring, a spring and across wire sleeve, the compression degree of the spring is changed by adjusting the cross wire sleeve, and the pressure-on of the inner ring is further controlled; after the front plugger and the tail plugger are expanded, a water injection cavity is formed with a drilling hole, and the external high-pressure water enters the water injection cavity through the converter to detect the permeabilityof the drilling hole. The testing device simplifies the external operating system and the operation steps, reduces the pipe in the drilling hole to be one, avoids the problem of the wire winding of the drilling rod, improves the stability of the measuring process, realizes the sealing process and the measuring process under the own respective pressure with the same water source, the variable pressure regulation of the converter is realized, so as to adapt to different working environment and pressure-on demand.

Description

变压可调式岩体裂隙渗透性的观测方法 Adjustable transformer fractured rock permeability observation method

技术领域 FIELD

[0001] 本发明属于岩体渗透性测定技术领域,具体涉及变压可调式岩体裂隙渗透性的观测方法。 [0001] The present invention belongs to the technical field measuring rock permeability, particularly relates to a method for transforming observed adjustable rock fracture permeability.

背景技术 Background technique

[0002] 岩体渗透系数是反映裂隙岩体渗透性能的重要参数,岩体渗透性能的改变与岩体的破坏情况密切相关。 [0002] rock permeability coefficient is an important parameter reflecting the fractured rock permeability is closely related to changes in the rock mass destruction permeability of the rock mass. 因此,研宄岩体渗透系数与裂隙大小、注水量和注水压的关系具有重要意义。 Therefore, a Subsidiary fractured rock permeability coefficient and size, injection pressure and injection water relations of great significance. 目前对钻孔渗透性的探测常用的设备为双端封堵测漏装置,具有测量精度相对较高、制造方便等优点,但在使用过程中,由于该装置存在封堵和供水两套操作系统,导致对应钻孔内的管线在推进过程中容易发生相互缠绕问题,造成工作过程不稳定,操作过程麻烦,适应性差等问题。 The detection device is currently used for the double-ended bore permeability leak plugging means having a relatively high measuring accuracy, ease of manufacture, etc., when used in the presence of the water and plugging device two operating systems , resulting in the pipeline within the corresponding drilling in advancing the process prone to entangling each other, causing instability in the working process, the process of operational problems, poor adaptability.

发明内容 SUMMARY

[0003] 本发明的目的在于提供一种变压可调式岩体裂隙渗透性的观测方法。 [0003] The object of the present invention is to provide a method for transforming observed adjustable fractured rock permeability.

[0004] 本发明的技术方案: [0004] The technical solution of the present invention:

[0005] 一种变压可调式岩体裂隙渗透性的观测方法,该观测方法所用的装置,包括封堵器、转换器6、连通管25、钻机11、钻杆9和控制操作台32;所述的封堵器进一步包括前部封堵器30和尾部封堵器31; [0005] Adjustable device for transforming method of observing rock fracture permeability, the observation method is used, the occluder comprising, a converter 6, the communication pipe 25, drill 11, the drill rod 9 and the control console 32; the occluder further comprises a front portion 30 and the tail occluder occluder 31;

[0006] 所述的转换器6螺纹连接于前部封堵器30尾部,其内部包含内环34、弹簧22和十字丝套29,通过调节十字丝套29的位置,改变弹簧22的压缩程度,进而控制内环34的开启压力;外界水源经过漏水管3中的漏水孔33注入封堵空腔27起胀橡胶囊5,前部封堵器30和尾部封堵器31起胀后,与钻孔28形成注水空腔26,外部高压水通过转换器6进入注水空腔26内对钻孔28裂隙渗透性进行探测; [0006] The converter 6 is connected to the threaded front portion of the tail occluder 30, which comprises an inner ring 34 inside the spring sleeve 22 and the cross wire 29, by adjusting the position of the cross wire sets 29, 22 to change the degree of compression of the spring so as to control the opening pressure of the inner ring 34; the external water leaking through the leak hole 33 in the injection pipe 3 from swelling rubber sealing cavity 27 of the balloon 5, the front portion 30 and the tail occluder occluder 31 from swelling, and injection bore 28 formed in cavity 26, by converting an external high pressure water 6 enters the cavity of the injection borehole 28 26 detect fracture permeability;

[0007] 所述的钻机11通过钻杆9与测试探头相连接,用以接长和推进测试探头至指定区域,钻杆9为空心杆,其内部可输送外界高压水源,钻杆9与测试探头之间呈螺纹连接,可拆卸; [0007] The drilling machine 11 is connected to the test probe by means of the rods 9, take long for the test probe and advance to the designated area, a hollow drill rod 9, which can be delivered outside the high-pressure water inside, and the drill stem test 9 was threaded connection between the detachable probe;

[0008] 所述的控制操作台32通过高压软管1〇与钻杆9连接,包括放水开关12、流量表13、 机械压力表14、总控开关15和电子压力表16,控制操作台32负责提供预定压力水源、卸压放水并检测和记录压力、流量等参数; Control console 32 is connected [0008] by the high-pressure hose and 1〇 rods 9, comprising a drain switch 12, flow meter 13, a mechanical pressure gauge 14, control switch 15 and the total electronic gauge 16, control console 32 It is responsible for providing a predetermined water pressure, drainage and relief detect and record pressure and flow parameters;

[0009] 所述的前部封堵器30包括接头一2、漏水管3、接头二4和橡胶囊5,接头一2和接头二4与漏水管3呈螺纹连接,橡胶囊5包绕在漏水管3外部,通过紧固圈24固定在接头一2和接头二4的外部,与漏水管3间形成封堵空腔27;接头一2外端螺纹连接引导头1,引导头1起导向作用,用以引导测试探头在钻孔中平顺渭动; [0009] The front portion of the occluder 30 comprises a connector 2, leaking pipes 3, 4 and two joint rubber bags 5, a connector 2 and 4 and the two connector 3 has a threaded connection leaking pipes, rubber wrapped balloon 5 3 outer tube leaks, by fastening the outer ring 24 is fixed to a connector 2 and the connector 4 of the two, the cavity block 27 is formed with three leaking pipes; a connector 2 connected to the outer end of the thread guide head 1, head 1 is guided from the guide action, to guide smooth Wei movable test probe in the borehole;

[0010] 所述的尾部封堵器23包括两个接头三7、漏水管3和橡胶囊5,橡胶囊通过紧固圈21 固定在两个接头三7之间; According to [0010] 23 comprises two tail occluder three connectors 7, leaking pipes 3 and 5 the balloon rubber, the rubber bladder 21 is fixed by the two joints between the three fastening ring 7;

[0011] 所述的接头三7外部螺纹连接圆形挡板11,圆形挡板U直径较橡胶囊5直径大,阻止稼收曩5脫洛;圆心挡板11呈螺纹连接,可拆卸,便于更换橡胶囊5; An externally threaded joint three 7 [0011] The shutter 11 is connected to the circular, the diameter of a circular baffle U balloon diameter than the large rubber 5, 5 snapped off preventing Luo Jia received; center baffle 11 has a threaded connection, detachable, facilitating replacement of rubber balloon 5;

[0012]外界水源通过前部封堵器30、尾部封堵器31中漏水孔33进入封堵空腔27,起胀对应橡胶囊5与钻孔28之间形成注水空腔26; [0012] The front portion of the outside water through occluder 30, a tail Occluder weep hole 3331 into the cavity block 27, a corresponding bulge is formed from injection cavity 26 between the rubber bladder 28 and the borehole 5;

[0013]所述的转换器6数量为一个,整体呈圆柱状,中间开有阶梯通孔,其左右两端分别与连通管25、接头二4螺纹连接; Number converter 6 [0013] according to an overall cylindrical, stepped through hole intermediate opening, left and right ends thereof respectively communicating pipe 25, fitting two threaded connections 4;

[00M]所述的转换器6内部、中间圆形孔周围对称设置四个侧漏孔35、四个分水孔19和一个内凹的集水槽18,集水槽18位于分水孔19右侧,与分水孔19相连通;分水孔19外壁设置凸台20和十字丝套29,凸台20起限位作用,十字丝套四与分水孔19外壁呈螺纹连接,在其上旋转; Said internal converter 6 [00M], symmetrically disposed around the intermediate circular hole 35 of the four side leak, four manifold holes 19 and a recessed sump 18, the sump 18 is located on the right side water diversion hole 19 , water diversion hole 19 communicating with; water diversion hole 19 and the outer wall of the boss 20 is provided cross wire sleeve 29, boss 20 limiting the role played crosshairs sets of four holes 19 and the outer wall trap was threaded connection, rotation thereon ;

[0015]所述的内环34呈圆柱环形状,左端面大于右端面,其套装于阶梯通孔外;内环34外壁形成与转换器6内壁相配合的30°密封锥面23,起密封作用,其内部对应设置有4个“L型” 通水孔17,与侧漏孔35对应相通,侧漏孔35与阶梯通孔相通; [0015] The inner ring 34 has a cylindrical ring shape, a right end surface of the left end face is greater than that set in the outer stepped through hole; 6 formed in the inner wall of the inner ring 34 and the outer wall of the converter 30 ° mating tapered seal 23, acts as a sealing effect, which is provided with four corresponding internal "L type" water-passing holes 17, corresponding to the side hole 35 communicating a drain, the drain side of the stepped hole 35 communicating with the through hole;

[0016]所述的内环M沿着内部左右滑动,初始状态下,由于弹簧22的作用,内环34处于右端,通水孔17被密封,当外界水源通过侧漏孔35作用于内环34右端面,内环34向左移动,至内环34左端面与凸台20接触时,此时,通水孔17恰与集水槽18相连通,将外界水源通过分水孔19排至注水空腔26内; [0016] M of the inner ring around the internal slide along, in the initial state, due to the action of the spring 22, the inner ring 34 is right, the water holes 17 are sealed, when the outside through the water drain hole 35 acting on the side of the inner ring right end face 34, the inner ring 34 moves to the left, to a left end surface of the inner ring 34 in contact with the boss 20, at this time, the water holes 17 exactly with the sump 18 communicates, through the external water source to the water discharge manifold hole 19 the cavity 26;

[0017] 所述的弹簧22位于内环34和十字丝套29之间,通过调节十字丝套29改变弹簧22的张紧程度,进而控制内环34的开启压力;十字丝套29设置有四个长方形的挡板且周边中空, 不仅便于利用外部工具进行旋转调节,而且便于注水空腔26内部水源通过,反馈作用于内环34左端面; [0017] The spring 22 is located between the inner sleeve 34 and the cross wire 29, changing the tension of the spring 22 by adjusting the degree of cross wire sets 29, 34 in turn controls the opening pressure of the inner ring; crosshairs sleeve 29 is provided with four a rectangular baffle perimeter and hollow, not only to facilitate the use of external tools rotational adjustment, and to facilitate injection of water through the internal cavity 26, the feedback acting on the left end surface of the inner ring 34;

[0018]所述的连通管25为密封空心管,数量为1根; [0018] The communication tube 25 is sealed hollow tube, an amount of a;

[0019]所述的转换器6工作原理: [0019] The converter 6 works:

[0020] (1)当内环34满足P左S环左+kx彡P右S恥时,则内环34向左移动,通水孔17与集水槽18 连通,水源通过分水孔19向注水空腔26进行注水观测; [0020] (1) when the inner ring 34 satisfies P S Left Left Right + kx San S P is shame, the inner ring 34 moves to the left, in communication with the sump 17 through the water holes 18, 19 to the water through the water diversion hole water injection cavity 26 for observation;

[0021] (2)当内环34满足P左S环护kx彡右时,则内环34向右移动,通水孔17被管壁封闭, 停止向注水空腔26供水; [0021] (2) the inner ring 34 when the retaining ring satisfies P S kx San left and right, inner ring 34 is moved rightward, the water holes 17 are closed wall, water supply is stopped to the injection cavity 26;

[0022] 其中,P左为注水空腔侧低压观测水源压力,一般为〇• 2〜0 • 5MPa左右;P右为连通管所提供的高压水源压力,一般为〇. 8〜IMPa左右,&K为内环左端面过水面积,S环右为内环右端面过水面积,k为外弹簧的弹性系数,x为压缩量; [0022] wherein, P is the left side of the low-pressure water injection cavity observation water pressure, it is generally square • about 2~0 • 5MPa; P is the right high-pressure water pressure communication pipe is provided, generally square about 8~IMPa, & amp. ; K is the inner surface of the left end over the water area, S is the inner ring a right end surface of the right over the water area, k is the spring constant of the outer spring, x is the amount of compression;

[0023] 所述的放水开关12负责推进测试结束后将封堵空腔27内压力水释放,使橡胶囊5 与钻孔28脱离接触,便于钻机11推进测试探头;总控开关15负责外界水源的停供,流量表13 负责检测外界水源向测试探头输入实时水量,机械压力表14与电子压力表16的示数相互对比检验,若大致相当,则表明压力有效。 [0023] The drain switch 12 is responsible for promoting the sealing of the cavity 27 after the test water pressure is released, the rubber balloon 5 out of contact with the borehole 28, facilitate probe driving test rig 11; total external control switch 15 is responsible for water for stop, responsible for detecting the flow meter 13 is input to the external water source of water real test probe, mechanical and electronic pressure gauge 14 pressure gauge 16 shows the number of each collation, if roughly, it indicates that effective pressure.

[0024]具体步骤如下: [0024] The specific steps are as follows:

[0025] (1)施工钻孔28:按照预先设计的施工要求,利用钻机11在待测岩体24区域施工不同方位和倾角a的钻孔3〜5个,钻孔28直径为89mm,长度为70m左右,并清理钻孔28内的碎屑; [0025] (1) Bored 28: pre-designed in accordance with construction requirements, the use of different construction rig 11 in region 24 measured orientation and inclination a rock drilling 3 ~ 5 months, drill 28 having a diameter of 89mm, a length It is about 70m, and clean up the debris in the borehole 28;

[0026] (2)安装设备:安装导向锥、前部封堵器3〇、尾部封堵器31、转换器6、连通管25,并依次连接钻机11、钻杆9、高压软管10及控制操作台32,然后利用钻机11将测试探头移送至钻孔11的初始位置; [0026] (2) mounting apparatus: mounting guide cone, the front portion of the occluder 3〇 tail occluder 31, the converter 6, the communication pipe 25 and drill 11 are sequentially connected, the rods 9, 10 and high pressure hose control console 32, and then using the drill 11 is transferred to the initial position of the test probe 11 of the borehole;

[0027] (3)密封检验:首先关闭控制操作台32的放水开关12,打开总控开关15,向测试探头提供检测水压,对橡胶囊5进行封堵密封性检验,若无明显漏水现象,则进行下一步操作, 否则返回步骤⑵操作,检查各部件间的连接及安装情况,然后重新进行步骤⑶操作,直至合格为止; t〇〇28] (4)进行压水观测:密封检验合格后,进行压水试验检测钻孔28孔段渗透性,使测试探头处于初始位置,重新关闭放水开关12并打开总控开关15,向测试探头提供高压水源, 经连通管25、漏水管3进入封堵空腔27,起胀前部封堵器30和尾部封堵器31的橡胶囊5,与钻孔28形成注水空腔26,调节外界水源压力逐渐升高至1.5MPa,高压水源经转换器6转换至低压探测水源后,输送至注水空腔26内,待流量表示数稳定后,记录此时稳定时流量表的示数Qi并记录探测距离Li; [0027] (3) a sealing test: First, switch 12 is closed drainage control console 32, the total open the control switch 15 is provided to detect the test probe pressure, the balloon 5 is rubber sealing test block, without significant water leakage , the next step, otherwise, the operation returns to step ⑵, check the connection and installation between the members, and then the operation proceeds to step ⑶ again until compliance date; t〇〇28] (4) water pressure observed: seal inspection after the test for detecting the water pressure drilling penetration bore section 28, so that the test probe is in the initial position, re-open and close the drain switch 12 master control switch 15, a high-pressure water to the test probe 25 through the communication pipe, leaking into the tube 3 a cavity block 27, the rubber bulging from the front portion 30 and the tail occluder balloon occluder 31 5, cavity 26 is formed with a water bore 28, adjusting the external pressure was gradually increased to 1.5MPa water, high pressure water converted converter 6 to the low pressure after the detection of water delivered to the water within the cavity 26, until a rear flow stability number, record number shown Qi flow meter and recording the detection distance Li and the settling time;

[°029] ⑸卸压推进:关闭总控开关15,打开放水开关12,释放封堵空腔27压力,待橡胶囊5与钻孔28脱离接触后,关闭放水开关12,取另一钻杆9接长测试探头,利用钻机11推进测试探头至下一探测区域,重复步骤⑷操作,直至测完钻孔28长度为止; [° 029] ⑸ promote relief: master control switch 15 is closed, open drain switch 12, blocking the release of the pressure chamber 27, the rubber balloon 5 to be out of contact with the borehole 28, close the drain switch 12, to take a further drill pipe 9 to take a long test probes, using the rig test probe 11 advance to the next detection area, repeating steps ⑷ operation, until the measured length of the bore 28 have been exhausted;

[0030] ⑹计算分析:根据钻孔28长度及对应观测孔段漏水量,分别绘制不同钻孔28内流量分布图,分析钻孔28长度范围内不同位置的渗透特性和裂隙发育特征,进一步结合不同方位的钻孔倾角a和累计连续漏水段长度(即渗透性突变零点)Ln (n=l+2+. . . .+k),计算得到不同空间范围岩体的破坏范围。 [0030] ⑹ Analysis calculated: The length of the bore 28 and a corresponding amount of leakage bore section observation, different plot the distribution of flow bore 28, bore 28 analyzes the permeation characteristics of different length positions and fracture development characteristics, further binding a borehole inclination different orientations of the continuous and cumulative leakage length (i.e. zero permeability mutation) Ln (n = l + 2 +.... + k), calculated to give a range of different spatial extent of destruction of rock.

[0031] 本发明的有益效果: [0031] Advantageous effects of the invention:

[0032] (1)本发明提出了变压可调式岩体裂隙渗透性测试装置,与现有技术相比,该装置可利用同一外接水源实现封堵和观测两个过程,并保证二者在各自的压力下工作,减少了钻孔内的管道数量为1根,避免了钻杆绕线问题,提高了工作过程的稳定性。 [0032] (1) The present invention provides a pressure swing adjustable fractured rock permeability test apparatus, as compared with the prior art, the apparatus can be realized by the same external water and observing two sealing process, and to ensure that both the work under respective pressures, reduces the number of pipes in a borehole, the drill pipe winding avoid problems and improve the stability of the working process.

[0033] (¾该装置中转换器实现了由高压水源向低压水源的转换,配合内环密封锥面,提高了密封性和开启压力,通过十字丝套调节弹簧压缩程度,控制内环具有不同的开启和转换压力,使转换器调压范围更为广泛、方法简便、过程稳定,可适应不同的工作需求。 [0033] (¾ of the converter means to the low water to achieve a conversion of the high-pressure water, with the tapered inner seal, the pressure to improve the sealing performance and opening, by adjusting the degree of compression spring sets the reticle, the control ring having a different opening and conversion pressure, the converter voltage range is more extensive, easy way, the process is stable, can be adapted to different working needs.

[0034] (3)集水槽的设计,可以解决通水孔与分水孔不对应问题,保证无论内环如何转动,其通水孔中的水都可以通过集水槽流向分水孔,同时分水孔开口与钻孔平行设计,减轻了由于水流对钻孔壁的直接冲击作用。 [0034] (3) the design of the sump, the water holes can be solved and does not correspond to the hole trap, ensures regardless of how the inner ring is rotated, the water holes through which water can flow to the sump through the manifold holes, while points water borehole parallel openings designed to reduce the effect of the direct impact of the water due to the borehole wall.

附图说明 BRIEF DESCRIPTION

[0035]图1为本发明变压可调式岩体裂隙渗透性测试装置的整体结构及观测状态示意图; [0035] Figure 1 is a schematic view of an overall configuration of the invention rock crack and observed the state of the permeability test device adjustable transformer;

[0036]图2为本发明变压可调式岩体裂隙渗透性测试装置的卸压推进状态示意图; [0036] FIG. 2 is a schematic view of the state of osmotic pressure swing adjustable pressure relief rock crack test propulsion device invention;

[0037]图3为本发明变压可调式岩体裂隙渗透性测试装置中测试探头的结构示意图; [0038]图4为本发明变压可调式岩体裂隙渗透性测试装置中前部封堵器结构示意图; [0039]图5为本发明变压可调式岩体裂隙渗透性测试装置中尾部封堵器结构示意图; [0040]图6为本发明变压可调式岩体裂隙渗透性测试装置中转换器剖面结构示意图; [0041]图7为本发明变压可调式岩体裂隙渗透性测试装置中转换器左视图; [0037] FIG. 3 is a schematic structural adjustable transformer fractured rock permeability test apparatus in the test probe of the present invention; [0038] FIG. 4 of the present invention a pressure swing adjustable fractured rock permeability test apparatus front sealing portion schematic structure; [0039] FIG. 5 is a schematic structural occluder adjustable transformer fractured rock permeability test apparatus of the present invention, the tail; [0040] FIG. 6 adjustable transformer fractured rock permeability test apparatus of the present invention. cross-sectional structural diagram of the converter; adjustable transformer fractured rock permeability test apparatus left side view of the converter [0041] FIG. 7 of the present invention;

[0042]图8为本发明变压可调式岩体裂隙渗透性测试装置中转换器右视图; [0042] FIG. 8 adjustable transformer fractured rock permeability test apparatus converter right side view of the present invention;

[0043] 图9 (a)为本发明变压可调式岩体裂隙渗透性测试装置中转换器静止状态示意图; [0043] FIG. 9 (a) a schematic view of rock fracture permeability test apparatus converter transformer adjustable stationary state of the present invention;

[0044] 图9⑹为本发明变压可调式岩体裂隙渗透性测试装置中转换器工作状态示意图; [0044] The schematic diagram of FIG. 9⑹ fractured rock permeability test apparatus operating state of the converter transformer Adjustable invention;

[0045] 图10为本发明变压可调式岩体裂隙渗透性测试装置中内环结构示意图; [0045] FIG. 10 is fractured rock permeability test device adjustable inner structural diagram of a pressure swing invention;

[0046] 图11为本发明变压可调式岩体裂隙渗透性测试装置中中十字丝套结构示意图。 [0046] FIG 11 a schematic view of the present disclosure fractured rock permeability test apparatus in the crosshairs transformer adjustable sleeve structure.

[0047] 图中:1引导头;2接头一;3漏水管;4接头二;5橡胶囊;6转换器; [0047] FIG: 1 guide head; a connector 2; 3 leaking pipes; 4 two joints; rubber bags 5; 6 converter;

[0048] 7接头三;8圆形挡板;9钻杆;10高压软管;11钻机;12放水开关; [0048] The three joint 7; 8 circular retainer; 9 drill pipe; high-pressure hose 10; 11 drill; drain switch 12;

[0049] 13流量表;14机械压力表;15总控开关;16电子压力表;17通水孔; [0049] The flow meter 13; 14 gauge machine; master control switch 15; electronic pressure gauge 16; water-passing hole 17;

[0050] 18集水槽;19分水孔;20凸台;21紧固圈;22弹簧;23密封锥面; [0050] 18 sump; water diversion hole 19; boss 20; fastening ring 21; spring 22; tapered seal 23;

[0051] 24待测岩体;25连通管;26注水空腔;27封堵空腔;28钻孔; [0051] Rock tested 24; 25 communicates; injection cavity 26; plugging cavity 27; 28 bore;

[0052] 29十字丝套;30前部封堵器;31尾部封堵器;32控制操作台;33漏水孔; [0052] 29 sets of cross wire; the front portion of the occluder 30; 31 tail occluder; control console 32; 33 weep hole;

[0053] 34内环;35侧漏孔。 [0053] 34 inner ring; leak hole 35 side.

具体实施方式 Detailed ways

[0054] 以下结合附图和技术方案,进一步说明本发明的具体实施方式。 [0054] accompanying drawings and the following technical solutions to further illustrate specific embodiments of the present invention binds.

[0055] 一种变压可调式岩体裂隙渗透性测试装置,包括封堵器、转换器6、连通管25、钻机11、钻杆9和控制操作台32;所述的封堵器进一步包括前部封堵器3〇和尾部封堵器31; [0055] A pressure swing adjustable fractured rock permeability test apparatus, comprising occluder, the converter 6, the communication pipe 25, drill 11, the drill rod 9 and the control console 32; the occluder further comprises 3〇 front portion of the occluder 31 and occluder tail;

[0056] 所述的转换器6螺纹连接于前部封堵器3〇尾部,其内部包含内环34、弹簧22和十字丝套29,通过调节十字丝套29的位置,改变弹簧22的压缩程度,进而控制内环34的开启压力;前部封堵器30和尾部封堵器31起胀后,与钻孔28形成注水空腔26,外部高压水通过转换器6进入注水空腔26内对钻孔28裂隙渗透性进行探测; According to [0056] Converter 6 screwed to the front portion of the occluder 3〇 tail containing within the inner ring 34, the spring sleeve 22 and the cross wire 29, by adjusting the position of the cross wire sets 29, 22 to change the compression spring degree, and then control the opening pressure of the inner ring 34; a front portion 30 and the tail occluder occluder 31 from bulging, bore 28 and cavity 26 formed in water, an external high pressure water injection into the cavity 26 by a converter 6 28 for drilling detect fracture permeability;

[0057] 所述的钻机11通过钻杆9与测试探头相连接,用以接长和推进测试探头至指定区域,钻杆9为空心杆,其内部可输送外界高压水源,钻杆9与测试探头之间呈螺纹连接,可拆卸; [0057] The drilling machine 11 is connected to the test probe by means of the rods 9, take long for the test probe and advance to the designated area, a hollow drill rod 9, which can be delivered outside the high-pressure water inside, and the drill stem test 9 was threaded connection between the detachable probe;

[0058] 所述的控制操作台32通过高压软管10与钻杆9连接,包括放水开关I2、流量表13、 机械压力表14、总控开关15和电子压力表16,控制操作台32负责提供预定压力水源、卸压放水并检测和记录压力、流量等参数; [0058] The control console 32 is connected via a high pressure hose 10 and the rods 9, comprising a drain switch I2, flow meter 13, a mechanical pressure gauge 14, control switch 15 and the total electronic gauge 16, is responsible for the control console 32 providing a predetermined water pressure, drainage and relief detect and record pressure and flow parameters;

[0059] 所述的前部封堵器30包括接头一2、漏水管3、接头二4和橡胶囊5,接头一2和接头二4与漏水管3呈螺纹连接,橡胶囊5包绕在漏水管3外部,通过紧固圈24固定在接头一2和接头二4的外部,与漏水管3间形成封堵空腔27;接头一2外端螺纹连接引导头1,引导头1起导向作用,用以引导测试探头在钻孔中平顺滑动; [0059] The front portion of the occluder 30 comprises a connector 2, leaking pipes 3, 4 and two joint rubber bags 5, a connector 2 and 4 and the two connector 3 has a threaded connection leaking pipes, rubber wrapped balloon 5 3 outer tube leaks, by fastening the outer ring 24 is fixed to a connector 2 and the connector 4 of the two, the cavity block 27 is formed with three leaking pipes; a connector 2 connected to the outer end of the thread guide head 1, head 1 is guided from the guide action, to guide smooth sliding test probe in the borehole;

[0060] 所述的尾部封堵器23包括两个接头三7、漏水管3和橡胶囊5,橡胶囊通过紧固圈21 固定在两个接头三7之间; According to [0060] 23 comprises two tail occluder three connectors 7, leaking pipes 3 and 5 the balloon rubber, the rubber bladder 21 is fixed by the two joints between the three fastening ring 7;

[0061] 所述的接头三7外部螺纹连接圆形挡板11,圆形挡板11直径较橡胶囊5直径大,阻止橡胶囊5脱落;圆心挡板11呈螺纹连接,可拆卸,便于更换橡胶囊5; [0061] The external connector 7 screwing three circular retainer 11, the balloon diameter circular baffle plate 11 having a larger diameter than the rubber 5, 5 prevent the balloon rubber falling; center baffle 11 has a threaded connection, detachable for easy replacement rubber balloon 5;

[0062] 外界水源通过前部封堵器30、尾部封堵器31中漏水孔33进入封堵空腔27,起胀对应橡胶囊5与钻孔28之间形成注水空腔26; [0062] The front portion of the outside water through occluder 30, a tail Occluder weep hole 3331 into the cavity block 27, a corresponding bulge is formed from injection cavity 26 between the rubber bladder 28 and the borehole 5;

[0063]所述的转换器6数量为一个,整体呈圆柱状,中间开有阶梯通孔,其左右两端分别与连通管25、接头二4螺纹连接; Number converter 6 [0063] according to an overall cylindrical, stepped through hole intermediate opening, left and right ends thereof respectively communicating pipe 25, fitting two threaded connections 4;

[0064] 所述的转换器6内部、中间圆形孔周围对称设置四个侧漏孔35、四个分水孔19和一个内凹的集水槽18,集水槽18位于分水孔19右侧,与分水孔19相连通;分水孔19外壁设置凸台20和十字丝套29,凸台20起限位作用,十字丝套29与分水孔19外壁呈螺纹连接,在其上旋转; Said internal converter 6 [0064], symmetrically disposed around the intermediate circular hole 35 of the four side leak, four manifold holes 19 and a recessed sump 18, the sump 18 is located on the right side water diversion hole 19 , water diversion hole 19 communicating with; water diversion hole 19 and the outer wall of the boss 20 is provided cross wire sleeve 29, boss 20 limiting the role played crosshairs water diversion hole 19 and the sleeve 29 form an outer wall of a threaded connection, rotation thereon ;

[0065]所述的内环:34呈圆柱环形状,左端面大于右端面,其套装于阶梯通孔外;内环34外壁形成与转换器6内壁相配合的3〇°密封锥面23,起密封作用,其内部对应设置有4个“L型” 通水孔17,与侧漏孔35对应相通,侧漏孔35与阶梯通孔相通; Inner [0065], wherein: the ring 34 has a cylindrical shape, a right end surface of the left end face is greater than that set in the outer stepped through hole; 6 formed in the inner wall of the inner ring 34 and the outer wall of the converter 3〇 cooperating sealing cones 23 °, acts as a seal, which is provided with a corresponding internal four "L-type" water-passing holes 17, corresponding to the side hole 35 communicating a drain, the drain side of the stepped hole 35 communicating with the through hole;

[0066]所述的内环34沿着内部左右滑动,初始状态下,由于弹簧22的作用,内环34处于右端,通水孔17被密封,当外界水源通过侧漏孔35作用于内环34右端面,内环34向左移动,至内环34左端面与凸台20接触时,此时,通水孔I7恰与集水槽18相连通,将外界水源通过分水孔19排至注水空腔26内; [0066] The inner ring 34 slides along the inside of the right and left, in the initial state, due to the action of the spring 22, the inner ring 34 is right, the water holes 17 are sealed, when the outside through the water drain hole side acting on the inner ring 35 right end face 34, the inner ring 34 moves to the left, to the inner ring 34 when in contact with the left end surface of the boss 20, at this time, the water-passing hole just I7 sump 18 communicates, through the external water source to the water discharge manifold hole 19 the cavity 26;

[0067] 所述的弹簧22位于内环34和十字丝套29之间,通过调节十字丝套29改变弹簧22的张紧程度,进而控制内环34的开启压力;十字丝套29设置有四个长方形的挡板且周边中空, 不仅便于利用外部工具进行旋转调节,而且便于注水空腔26内部水源通过,反馈作用于内环34左纟而面; [0067] The spring 22 is located between the inner sleeve 34 and the cross wire 29, changing the tension of the spring 22 by adjusting the degree of cross wire sets 29, 34 in turn controls the opening pressure of the inner ring; crosshairs sleeve 29 is provided with four a rectangular baffle perimeter and hollow, not only to facilitate the use of external tools rotational adjustment, and to facilitate injection of water through the internal cavity 26, the feedback acting on the inner ring 34 and the left surface Si;

[0068]所述的连通管25为密封空心管,数量为1根; [0068] The communication tube 25 is sealed hollow tube, an amount of a;

[0069]所述的转换器6工作原理: [0069] The converter 6 works:

[0070] (1)当内环34满足PsSiK+kx彡时,则内环34向左移动,通水孔17与集水槽18 连通,水源通过分水孔19向注水空腔26进行注水观测; [0070] (1) when the inner ring 34 meet PsSiK + kx San, the inner ring 34 moves to the left, the water holes 17 communicating with the sump 18, water for injection to observe water trap cavity 26 through the aperture 19;

[0071] ⑵当内环34满足彡P右&T右时,贝1J内环34向右移动,通水孔17被管壁封闭, 停止向注水空腔26供水; [0071] ⑵ satisfied when the inner ring 34 and right San P & amp; T the right time, the inner shell 34 moves to the right 1J, water-passing hole wall 17 is closed to stop the water supply to the injection cavity 26;

[0072] 其中,P左为注水空腔侧低压观测水源压力,一般为0 • 2〜0 • 5MPa左右;P右为连通管所提供的高压水源压力,一般为0.8〜IMPa左右,S环左为内环左端面过水面积,S环右为内环右端面过水面积,k为外弹簧的弹性系数,X为压缩量; [0072] wherein, P is the left side of the low-pressure water injection cavity observation water pressure, typically about 0 • 2~0 • 5MPa; P is the right high-pressure water pressure communication pipe is provided, generally about 0.8~IMPa, S left ring the inner surface of the left end over the water area, S is the inner ring a right end surface of the right over the water area, k is the spring constant of the outer spring, X is the amount of compression;

[0073] 所述的放水开关12负责推进测试结束后将封堵空腔27内压力水释放,使橡胶囊5 与钻孔28脱离接触,便于钻机11推进测试探头;总控开关15负责外界水源的停供,流量表13 负责检测外界水源向测试探头输入实时水量,机械压力表14与电子压力表16的示数相互对比检验,若大致相当,则表明压力有效。 [0073] The drain switch 12 is responsible for promoting the sealing of the cavity 27 after the test water pressure is released, the rubber balloon 5 out of contact with the borehole 28, facilitate probe driving test rig 11; total external control switch 15 is responsible for water for stop, responsible for detecting the flow meter 13 is input to the external water source of water real test probe, mechanical and electronic pressure gauge 14 pressure gauge 16 shows the number of each collation, if roughly, it indicates that effective pressure.

[0074] 一种变压可调式岩体裂隙渗透性测试装置的观测方法,步骤如下: [0074] A method for transforming observed adjustable fractured rock permeability test apparatus, the following steps:

[0075] (1)施工钻孔28:按照预先设计的施工要求,利用钻机11在待测岩体24区域施工不同方位和倾角a的钻孔3〜5个,钻孔28直径为89mm,长度为70m左右,并清理钻孔狀内的碎肩; t〇〇76] (2)安装设备:安装导向锥、前部封堵器30、尾部封堵器31、转换器6、连通管25,并依次连接钻机11、钻杆9、高压软管10及控制操作台32,然后利用钻机11将测试探头移送至钻孔11的初始位置; [0075] (1) Bored 28: pre-designed in accordance with construction requirements, the use of different construction rig 11 in region 24 measured orientation and inclination a rock drilling 3 ~ 5 months, drill 28 having a diameter of 89mm, a length is about 70m, and clean up the borehole shoulder-shaped pieces; t〇〇76] (2) mounting apparatus: mounting guide cone, the front portion of the occluder 30, a tail block 31, the converter 6, the communication tube 25, and in turn connected to drill 11, the rods 9, high pressure hose 10 and a control console 32, and then using the drill 11 is transferred to the initial position of the test probe 11 of the borehole;

[0077] ⑶密封检验:首先关闭控制操作台32的放水开关12,打开总控开关15,向测试探头提供检测水压,对橡胶囊5进行封堵密封性检验,若无明显漏水现象,则进行下一步操作, 否则返回步骤⑵操作,检查各部件间的连接及安装情况,然后重新进行步骤⑶操作,直至合格为止; [0077] ⑶ seal test: First, switch 12 is closed drainage control console 32, the total open the control switch 15 is provided to detect the test probe pressure, the balloon 5 is rubber sealing test block, without significant water leakage, the the next step, otherwise, the operation returns to step ⑵, check the connection and installation between the members, and then the operation proceeds to step ⑶ again until pass up;

[0078] (4)进行压水观测:密封检验合格后,进行压水试验检测钻孔28孔段渗透性,使测试探头处于初始位置,重新关闭放水开关丨2并打开总控开关15,向测试探头提供尚压水源, 经连通管25、漏水管3进入封堵空腔27,起胀前部封堵器30和尾部封堵器31的橡胶囊5,与钻孔28形成注水空腔26,调节外界水源压力逐渐升高至1.5MPa,高压水源经转换器6转换^低压探测水源后,输送至注水空腔26内,待流量表示数稳定后,记录此时稳定时流量表的示数Qi并记录探测距离Li; [0078] (4) water pressure observed: after seal inspection, for detecting the water pressure test bore 28 bore section permeability test probe so that in the initial position, re-close and open the drain switch 2 Shu master control switch 15, to test probe still providing water pressure, through the communication pipe 25, leaking pipes 3 enters the cavity block 27, the rubber bulging from the front portion 30 and the tail occluder balloon occluder 31 5, a water cavity 26 and the bore 28 after adjusting the external water pressure was gradually increased to 1.5MPa, a high-pressure water via the converter 6 converts the low voltage detection ^ water delivered to the water within the cavity 26, until the flow rate represents a stable, shows the number of records and the settling time of the flow meter Qi and recording detection range of Li;

[0079] (5)卸压推进:关闭总控开关15,打开放水开关12,释放封堵空腔27压力,待橡胶囊5与钻孔28脱离接触后,关闭放水开关12,取另一钻杆9接长测试探头,利用钻机11推进测试探头至下一探测区域,重复步骤⑷操作,直至测完钻孔28长度为止; [0079] (5) promote the relief: after the master control switch 15 is closed, open drain switch 12, blocking the release of the pressure chamber 27, the rubber balloon 5 to be out of contact with the borehole 28, close drain switch 12, to take a further drill lever 9 to take a long test probe rig using test probe 11 advance to the next detection area, repeating steps ⑷ operation, until the measured length of the bore 28 have been exhausted;

[0080] ¢0计算分析:根据钻孔28长度及对应观测孔段漏水量,分别绘制不同钻孔28内流量分布图,分析钻孔28长度范围内不同位置的渗透特性和裂隙发育特征,进一步结合不同方位的钻孔倾角a和累计连续漏水段长度(即渗透性突变零点)Ln (n = l+2+... .+k),计算得到不同空间范围岩体的破坏范围。 [0080] ¢ 0 Calculation: The length of the bore 28 and a corresponding amount of leakage bore section observation, different plot the distribution of flow bore 28, bore 28 analyzes the permeation characteristics of different length positions and fracture development characteristics, further binding a borehole inclination and different orientations of the continuous leaking cumulative length (i.e., permeability mutation 0:00) Ln (n = l + 2 + .... + k), calculated to give a range of different spatial extent of destruction of rock.

[0081] 本发明中未述及的部分采用或借鉴已有技术即可实现。 [0081] The present invention is not addressed in the prior art reference part is or can be realized.

[0082]尽管本文中较多的使用了诸如转换器6、内环M、分水孔19等术语,但并不排除使用其它术语的可能性,本领域技术人员在本发明的启示下对这些术语所做的简单替换,均应在本发明的保护范围之内。 [0082] Although more used herein, such as the converter 6, the inner ring M, terms such as water diversion hole 19, but do not exclude the possibility of using other terminology, those skilled in the art in light of the present invention. the term simple substitution made, should be within the scope of the present invention.

Claims (6)

1. 一种变压可调式岩体裂隙渗透性的观测方法,其特征在于,该观测方法所用的装置包括封堵器、转换器(6)、连通管(25)、钻机(11)、钻杆(9)和控制操作台(32);所述的封堵器进一步包括前部封堵器(30)和尾部封堵器(31); 所述的转换器(6)螺纹连接于前部封堵器(30)尾部,其内部包含内环(34)、弹簧(22)和十字丝套(29),通过调节十字丝套(29)的位置,改变弹簧(22)的压缩程度,进而控制内环(34)的开启压力; 外界水源经过漏水管⑶中的漏水孔(33)注入封堵空腔(27)起胀橡胶囊(5),前部封堵器(3〇)和尾部封堵器(31)起胀后,与钻孔(28)形成注水空腔(26),外部高压水通过转换器(6)进入注水空腔(26)内对钻孔(28)裂隙渗透性进行探测; 所述的钻机(11)通过钻杆(9)与测试探头相连接,用以接长和推进测试探头至指定区域,钻杆(9)为空心杆,其内部可输送外界高压水源,钻杆(9)与 CLAIMS 1. A method of observing an adjustable transformer rock fracture permeability, wherein the observation apparatus comprises a process used an occluder, a converter (6), the communication pipe (25), drill (11), a drill the rod (9) and a control console (32); the occluder further comprises a front portion of the occluder (30) and tail occluder (31); a converter (6) is screwed to the front portion occluder (30) tail, which comprises an internal loop (34), a spring (22) and the cross wire sleeve (29), by adjusting the reticle sleeve (29) of the position, change the degree of the compression spring (22), and further a control loop (34) opening pressure; leaking outside through the water bore (33) in the injection leaking pipes ⑶ plugging cavity (27) from expanding rubber balloon (5), the front portion of the occluder (3〇) and tail after the occluder (31) from expanding, the borehole (28) formed injection cavity (26), the external high-pressure water into the water chamber (26) by the converter (6) of the bore (28) fracture permeability detect; said drill (11) connected by rods (9) and the test probe connected to the test probe length and advance to the designated region, the drill rod (9) is a hollow rod, which may be delivered outside the high-pressure water inside , drill pipe (9) and 试探头之间呈螺纹连接, 可拆卸; 所述的控制操作台(32)通过高压软管(10)与钻杆(9)连接,包括放水开关(12)、流量表(13)、机械压力表(14)、总控开关(15)和电子压力表(16),控制操作台(32)负责提供预定压力水源、卸压放水,并检测和记录压力、流量; 外界水源通过前部封堵器(30)、尾部封堵器(31)中漏水孔(33)进入封堵空腔(27),起胀对应橡胶囊(5)与钻孔(28)之间形成注水空腔(26); 所述的转换器(6)数量为一个,整体呈圆柱状,中间开有阶梯通孔,其左右两端分别与连通管(25)、接头二⑷螺纹连接; 所述的转换器⑹内部、中间圆形孔周围对称设置四个侧漏孔(35)、四个分水孔(19)和一个内凹的集水槽(18),集水槽(18)位于分水孔(19)右侧,与分水孔(19)相连通;分水孔(19)外壁设置凸台(20)和十字丝套(29),凸台(2〇)起限位作用,十字丝套(29)与分水孔(19 As a threaded connection between probe head, detachably; control console (32) by the high-pressure hose (10) and the rods (9), comprising a drain switch (12), flow meter (13), mechanical pressure table (14), the total control switch (15) and an electronic gauge (16), a control console (32) is responsible for providing a predetermined water pressure, pressure relief drain, and to detect and record the pressure, flow rate; water outside through the front occlusion water forming cavity (26) between the device (30), the tail of the occluder (31) in a leaking hole (33) into the sealing cavity (27), from the corresponding swelling rubber balloon (5) and the bore (28) ⑹ said internal converter;; number converter (6) according to one of overall cylindrical, stepped through hole intermediate opening, left and right ends thereof respectively communicating pipe (25), two joint screwing ⑷ , symmetrically disposed around the circular aperture four intermediate side leakage hole (35), four water diversion hole (19) and a recessed sump (18), sump (18) located trap-hole (19) on the right side with water diversion hole (19) in communication; trap hole (19) provided an outer wall boss (20) and the cross wire sleeve (29), the boss (2〇) plays the role of limiting crosshairs sleeve (29) and water diversion hole (19 )外壁呈螺纹连接,在其上旋转; 所述的内环(34)呈圆柱环形状,左端面大于右端面,其套装于阶梯通孔外;内环(34)外壁形成与转换器⑹内壁相配合的3〇°密封锥面(23),起密封作用,其内部对应设置有4个“L 型”通水孔(17),与侧漏孔(35)对应相通,侧漏孔(35)与阶梯通孔相通; 所述的内环(34)沿着内部左右滑动,初始状态下,由于弹簧(2¾的作用,内环(34)处于右端,通水孔(17)被密封,当外界水源通过侧漏孔(35)作用于内环(34)右端面,内环(34)向左移动,至内环(34)左端面与凸台(20)接触时,此时,通水孔(17)恰与集水槽(18)相连通, 将外界水源通过分水孔(19)排至注水空腔(26)内; 所述的弹簧(22)位于内环(34)和十字丝套(29)之间,通过调节十字丝套(29)改变弹簧(22)的张紧程度,进而控制内环(M)的开启压力;十字丝套(2¾设置有四个长方形的挡板且周边中空,不 ) Form an outer wall of a threaded connection, rotation thereon; said inner ring (34) has a cylindrical ring shape, a right end surface of the left end face is greater than that set in the outer stepped through hole; an inner ring (34) is formed with an outer wall of an inner wall of the converter ⑹ 3〇 ° cooperating sealing cones (23), acts as a seal, which is provided with a corresponding internal four "L-type" water-passing holes (17), the side leak hole (35) corresponding to communicating, side leakage hole (35 ) in communication with the stepped through hole; said inner ring (34) slides along the left and right inside, in the initial state, due to the spring (2¾ action of the inner ring (34) is right, the water passing hole (17) is sealed, when water leak outside through the side (35) to act on (34) the right end surface of the inner ring, the inner ring (34) moves to the left, (20) contacts to the inner ring (34) and a left end surface of the boss, this time, water hole (17) with just sump (18) communicating the outside world through the water trap hole (19) into the water discharge chamber (26); said spring (22) located in the inner ring (34) and the cross wire between the sleeve (29), (29) to change the degree of tension springs (22) by adjusting the cross wire sets so as to control the inner (M) of the opening pressure; crosshairs sleeve (2¾ provided with four baffles and rectangular surrounding hollow, not 便于利用外部工具进行旋转调节,而且便于注水空腔G6)内部水源通过, 反馈作用于内环(34)左端面; 所述的转换器⑹工作原理: (1)当内环(34)满足PsSFRfe+kx彡?右細6时,则内环(34)向左移动,通水孔(17)与集水槽(18)连通,水源通过分水孔(19)向注水空腔(26)进行注水观测; ⑵当内环(34)满足P左S环左+kx多P右S恥时,则内环(M)向右移动,通水孔(17)被管壁封闭,停止向注水空腔(26)供水; 其中,P左为注水空腔(26)侧低压观测水源压力,为〇• 2〜0 • 5MPa左右;p右为连通管(25) 所提供的高压水源压力,为0.8〜IMPa左右,S环左为内环(34)左端面过水面积,为内环(34)右端面过水面积,k为弹簧(22)的弹性系数,x为压缩量; 所述的放水开关(12)负责推进测试结束后将封堵空腔(27)内压力水释放,使橡胶囊(5)与钻孔(28)脱离接触,便于钻机(11)推进测试探头;总控开关(15) Using external tools to facilitate rotational adjustment, and easy injection cavity G6) water inside by acting on the feedback loop (34) left end surface; ⑹ works converter according to: (1) when the inner ring (34) satisfies PsSFRfe San + kx? 6 Right thin, the inner ring (34) moves to the left, water-passing holes (17) and the sump (18) communicating water to the water for injection cavity (26) through the water diversion hole (19) observation; ⑵ when the inner ring (34) satisfies the left S P + kx multiple ring when left and right P S shame, the inner ring (M) moves to the right, water-passing holes (17) wall is closed, stopping the water chamber (26) water; wherein, P is the left water chamber (26) observing the low-pressure side pressure of water as a square • about 2~0 • 5MPa; p to the right (25) to provide a high-pressure water pressure communication pipe, is 0.8~ about IMPa, S is the left inner ring (34) over the water surface of a left end area of ​​the inner ring (34) right over the water surface area, k is the spring constant of the spring (22), x is the amount of compression; the drain switch (12) responsible for promoting the release of pressure after the test water plugging cavity (27) of the rubber balloon (5) and the bore (28) out of contact, to facilitate drilling rig (11) driving test probe; master control switch (15 ) 责外界水源的停供,流量表(13)负责检测外界水源向测试探头输入实时水量,机械压力表(14)与电子压力表(16)的示数相互对比检验,若大致相当,则表明压力有效; 具体步骤如下: (1) 施工钻孔(28):按照预先设计的施工要求,利用钻机(11)在待测岩体(¾)区域施工不同方位和倾角a的钻孔3〜5个,钻孔(28)直径为89mm,长度为70m左右,并清理钻孔(28)内的碎屑; (2) 安装设备:安装导向锥、前部封堵器(30)、尾部封堵器(31)、转换器(6)、连通管(25),并依次连接钻机(11)、钻杆⑼、高压软管(10)及控制操作台(32),然后利用钻机(11) 将测试探头移送至钻孔(11)的初始位置; ⑶密封检验:首先关闭控制操作台(32)的放水开关(12),打开总控开关(15),向测试探头提供检测水压,对橡胶囊(5)进行封堵密封性检验,若无明显漏水现象,则进行下一步操作,否则返回步 Responsible for the external water stop, flow meter (13) responsible for detecting the water outside the water input to the test in real time probe, a mechanical pressure gauge (14) with the electronic gauge (16) shows the number of each collation, if roughly, it indicates that the pressure effective; the following steps: (1) construction of the borehole (28): pre-designed in accordance with construction requirements, using the rig (11) in different orientations construction drilling rock region to be measured (¾) and a tilt angle of 3 ~ 5 months , bore (28) having a diameter of 89mm, a length of about 70m, and clear debris from the bore (28); (2) mounting apparatus: mounting guide cone, the front portion of the occluder (30), a tail occluder (31), the converter (6), the communication pipe (25), and sequentially connecting the rig (11), drill ⑼, high-pressure hose (10) and control console (32), and then using the drill (11) test borehole probe is transferred to the initial position (11); ⑶ sealing test: first close control console (32) of the drain switch (12), the total open control switch (15) is provided to detect pressure test probe rubber bladder (5) for closure tightness test, without significant water leakage, then the next step, otherwise step (2)操作,检查各部件间的连接及安装情况,然后重新进行步骤(3)操作,直至合格为止; (4)进行压水观测:密封检验合格后,进行压水试验检测钻孔(28)孔段渗透性,使测试探头处于初始位置,重新关闭放水开关(12)并打开总控开关(15),向测试探头提供高压水源,经连通管(25)、漏水管(3)进入封堵空腔(27),起胀前部封堵器(30)和尾部封堵器(31) 的橡胶囊(5),与钻孔(28)形成注水空腔(26),调节外界水源压力逐渐升高至1.5MPa,高压水源经转换器(6)转换至低压探测水源后,输送至注水空腔(26)内,待流量表示数稳定后, 记录此时稳定时流量表的示数Qi并记录探测距离Li; 卸压推进:关闭总控开关(15),打开放水开关(12),释放封堵空腔(27)压力,待橡胶囊(5)与钻孔(28)脱离接触后,关闭放水开关(12,取另一钻杆(9)接长测试探头,利用钻机(11)推进测试探头至下一探测 (2) operation, the connection between the installation and inspection of the components, and then re step (3) operation, up until qualified; (4) water pressure observed: after seal inspection, for detecting water pressure test bore (28 ) permeability bore section, in the initial position of the test probe, reclosed drain switch (12) and open the master control switch (15), to provide high voltage test probe water, through the communication pipe (25), leaking pipes (3) into the package plug cavity (27), the front portion from expanding occluder (30) and tail occluder (31) of the rubber balloon (5), the bore (28) forming a cavity filling (26), the external water pressure regulator after gradually increased to 1.5MPa, a high pressure water through the converter (6) is converted to the low water probe, the water delivered to the cavity (26), a rear flow until the number of stable, recording the number of flow meter shown and the settling time Qi after closing the master control switch (15), open drain switch (12), blocking the release of the cavity (27) pressure, until the rubber balloon (5) and the bore (28) Disengagement: promoting relief; and recording the detection distance Li closing drain switch (12, take another drill rod (9) take a long test probes, using the rig (11) advancing to the next test probes to detect 域,重复步骤⑷操作,直至测完钻孔(28)长度为止; ⑹计算分析:根据钻孔(28)长度及对应观测孔段漏水量,分别绘制不同钻孔(28)内流量分布图,分析钻孔(28)长度范围内不同位置的渗透特性和裂隙发育特征,进一步结合不同方位的钻孔倾角a和累计连续漏水段长度Ln(n = l+2+.. . .+k),计算得到不同空间范围岩体的破坏范围。 Domain, repeat steps ⑷ operation, until the measured finished bore (28) until the length; ⑹ Analysis calculated: A hole (28) corresponding to the length and amount of leakage bore section observations were drawn different boring the flow profile (28), analysis bore (28) within the length of permeability different locations and fracture development characteristics, different orientations further combined borehole inclination and a continuous leakage cumulative length Ln (n = l + 2 + .... + k), calculate the extent of damage in different spatial extent of rOCK.
2. 根据权利要求1所述的观测方法,其特征在于,所述的前部封堵器(30)包括接头一(2)、漏水管⑶、接头二⑷和橡胶囊(5),接头一⑵和接头二⑷与漏水管⑶呈螺纹连接, 橡胶囊⑸包绕在漏水管⑶外部,通过紧固圈(24)固定在接头一⑵和接头二⑷的外部, 与漏水管⑶间形成封堵空腔(27);接头一⑵外端螺纹连接引导头(1),引导头⑴起导向作用,用以引导测试探头在钻孔中平顺滑动。 2. The observation method according to claim 1, wherein said front portion of the occluder (30) comprises a connector (2), leaking pipes ⑶, ⑷ two joints and a rubber balloon (5), a connector ⑵ ⑷ with two joints and leaking pipes ⑶ was screwing, wrapped in a rubber bladder ⑸ ⑶ external leaking pipes, fixed to the joint and a joint ⑵ ⑷ two outer by fastening ring (24), is formed between the seal leaking pipes ⑶ plug cavity (27); an outer threaded end of connector ⑵ a guide head (1), the guide head ⑴ from the guide, to guide smooth sliding test probe in the borehole.
3. 根据权利要求1或2所述的观测方法,其特征在于,所述的尾部封堵器(23)包括两个接头三(7)、漏水管(3)和橡胶囊(5),橡胶囊通过紧固圈(21)固定在两个接头三C7)之间。 The observation method of claim 1 or claim 2, wherein said tail occluder (23) comprises three two joints (7), leaking pipes (3) and a rubber balloon (5), the rubber (21) is fixed between the two joint three C7) by fastening ring balloon.
4. 根据权利要求3所述的观测方法,其特征在于,所述的接头三(7)外部螺纹连接圆形挡板(11),圆形挡板(11)直径较橡胶囊⑸直径大,阻止橡胶囊⑸脱落;圆心挡板(11)呈螺纹连接,可拆卸,便于更换橡胶囊(5)。 4. The observation method according to claim 3, characterized in that, the three joint (7) connected to an externally threaded circular retainer (11), the diameter of a circular baffle plate (11) than the large diameter ⑸ rubber balloon, ⑸ off preventing rubber bladder; center flap (11) as a screw connection, removable, easy replacement of the rubber balloon (5).
5. 根据权利要求1、2或4所述的观测方法,其特征在于,所述的连通管(25)为密封空心管,数量为1根。 Observation method according to claim 1 or claim 4, characterized in that said communication pipe (25) is a sealed hollow tube, an amount of a.
6. 根据权利要求3所述的观测方法,其特征在于,所述的连通管(25)为密封空心管,数量为1根。 6. The observation method according to claim 3, characterized in that said communication pipe (25) is a sealed hollow tube, an amount of a.
CN201810375972.7A 2018-04-20 2018-04-20 Method for observing fracture permeability of variable-pressure adjustable rock mass CN108678737A (en)

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