DL/T 5784-2019 English PDFUS$1369.00 · In stock
Delivery: <= 8 days. True-PDF full-copy in English will be manually translated and delivered via email. DL/T 5784-2019: Technical specification for concrete dam safety monitoring system construction Status: Valid
Basic dataStandard ID: DL/T 5784-2019 (DL/T5784-2019)Description (Translated English): Technical specification for concrete dam safety monitoring system construction Sector / Industry: Electricity & Power Industry Standard (Recommended) Classification of Chinese Standard: P59 Word Count Estimation: 60,613 Date of Issue: 2019-06-04 Date of Implementation: 2019-10-01 Regulation (derived from): Natural Resources Department Announcement No. 7 of 2019 Issuing agency(ies): National Energy Administration DL/T 5784-2019: Technical specification for concrete dam safety monitoring system construction---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.Technical specification for concrete dam safety monitoring system construction ICS 27.140 P 59 Record number. 63143-2018 People's Republic of China Electric Power Industry Standard P DL/T 5784-2019 Technical code for construction of concrete dam safety monitoring system 2019-06-04 released 2019-10-01 implementation Issued by National Energy Administration ForewordThis standard is based on the "Notice of the National Energy Administration on Issuing the Second Batch of Energy Sector Standard Program Projects in.2012" (National Energy Technology [2012] No. 326) requirements were formulated, and the plan number is Energy.20120590. During the formulation of this standard, the compilation team has conducted extensive investigations and studies, and summarized the safety monitoring of concrete dams in recent years. The latest development and experience of construction technology, considering coordination with current national standards and industry standards, Based on the findings, the final draft is reviewed and finalized. The main contents of this standard include. construction preparations for the safety monitoring system of concrete dams, installation and laying of monitoring equipment, Observation and data compilation and analysis requirements. This standard was proposed by the China Electricity Council. This standard is under the jurisdiction of the Power Industry Dam Safety Monitoring Standardization Technical Committee (DL/T C 32). Drafting organizations of this standard. Gezhouba Group Test and Inspection Co., Ltd., National Energy Administration Dam Safety Supervision Center, China Guodian Group East China Survey, Design and Research Institute Co., Ltd., China Power Construction Group Kunming Survey, Design and Research Institute Co., Ltd., China Power Construction Group Chengdu Survey and Design Institute Co., Ltd., State Grid Electric Power Research Institute, China Water Resources and Hydropower Third Engineering Engineering Bureau Co., Ltd., China Water Resources and Hydropower Seventh Engineering Bureau Co., Ltd., Longtan Hydropower Development Co., Ltd. The main drafters of this standard. Tan Kaiyan, Zhao Huacheng, Hu Dizhong, Yao Hongbing, and Wang attack Wang Feng Dong Zerong Hu Jianzhong Cui Gang Li Lei Shuai Yongjian Zhang Zhikui Long Pieces Open Huang Shijun Cai Dewen Hu Bo Xing Hao He leads the army The main reviewer of this standard. Wang Yi, Zhang Xiuli, Liu Guanbiao, Wang Yujie, and Lu Zhengchao Zheng Xiaohong Chen Xugao Geng Guibiao Wen Fuyong Chen Shulian Li Yunliang Wang Yue Ma Nengwu Li Junfu Wu Xiaobin Li Zhanbei, Xie Changjiang, Guo Chen, and the three kings of the province win Xu Guolong, Hu Xiaoyun, Zhong Ping Yu San San Feng Yongxiang The opinions or suggestions in the implementation of this standard are fed back to the Standardization Management Center of the China Electricity Council (Beijing Bai No. 1, Ertiao Guanglu, 100761).Table of contentsPreface... III III 1 General Principles... 1 2 Terminology... 2 2.0.3 monitoring system A system composed of various monitoring facilities and monitoring information management software. 2.0.4 initial value The first measured value when the monitoring equipment is installed and buried in normal operation is the initial value. 2.0.5 Base line value The measured value as the starting point of each stage of calculation. The calculation reference value can be selected according to the calculation and analysis needs of each stage. 2.0.6 effective aperture The diameter of the inscribed circle (that is, the minimum vertical clearance) of the measuring circle of each elevation of the borehole in the projection map of the horizontal plane.3 Basic regulations3.0.1 The construction of the monitoring system should be coordinated with the construction progress of the engineering building. 3.0.2 The construction personnel of the monitoring system should be familiar with the engineering design documents, understand the monitoring purpose and design Relevant engineering information and construction planning of engineering buildings. 3.0.3 The monitoring instruments and equipment should be inspected and calibrated, and their performance should meet the corresponding technical requirements. 3.0.4 The construction materials of the monitoring system shall meet the monitoring technical requirements and the structural requirements of the engineering building at the location. 3.0.5 The monitoring construction shall not affect the building structure and seepage prevention safety. 3.0.6 Safety, quality, environmental protection, soil and water conservation, occupational health and civilized construction measures should be adopted for monitoring construction, and should be controlled if necessary. Set special safety measures. 3.0.7 After the monitoring equipment is installed and buried, timely observation and data compilation analysis feedback should be carried out.4 Construction preparation4.0.1 Before the construction of the monitoring system, the construction organization design should be prepared according to the design documents, site construction conditions and schedule, and the construction The industrial organization design should include the following. 1 Organization, workplace layout and main equipment configuration. 2 Selection of monitoring equipment and procurement plan. 3 Inspection plan and inspection plan for monitoring equipment. 4 Construction procedures and schedule. 5 Installation and burying methods and protection measures. 6 Observation methods, frequency and monitoring information collection equipment usage, maintenance methods and requirements. 7 Monitoring data compilation analysis plan and feedback. 8 Safety, quality, environmental protection, soil and water conservation, civilized construction and occupational health measures. 4.0.2 The purchase of monitoring equipment shall meet the construction schedule and design requirements. 4.0.3 After the arrival of the monitoring equipment, the inspection and acceptance shall be carried out and the acceptance records and materials shall be kept. The acceptance shall meet the following requirements. 1 The certificate, factory inspection report, technical manual and accessories should be complete. 2 The appearance inspection meets the requirements of product standards and instructions. 4.0.4 The on-site transportation of monitoring equipment should take anti-shock measures, and the storage environment should meet the corresponding technical requirements. 4.0.5 The monitoring instruments and monitoring cables shall be inspected before they are installed and buried before they can be used. The inspection of the monitoring instruments should be carried out on the construction site. get on. The inspection methods and technical requirements shall be implemented in accordance with Appendix A. 4.0.6 Before installing the monitoring system, check the types and quantities of the monitoring equipment and installation accessories, check the installation conditions, and Prepare the required related materials, construction machinery, tools and materials.5 Installation and burying5.1 General provisions 5.1.1 The monitoring system shall carry out the construction in time according to the construction progress of the on-site engineering building and the changes of the construction environment, and observe in time. Obtain the initial value. 5.1.2 The seepage water pressure monitoring facilities in the area affected by grouting should be installed after grouting, and those that really need to be installed before grouting should be installed at During the grouting construction period, anti-clogging measures shall be taken for the seepage water pressure monitoring facilities. 5.1.3 Observation access roads, safety protection and protection facilities should be constructed simultaneously with the installation and burial of monitoring equipment. Need lightning protection The required parts shall be installed and buried according to the design requirements while taking lightning protection measures. 5.1.4 The installation and embedding of monitoring facilities should be measured and positioned. After embedding, the installation and embedding position, embedding position and direction should be reviewed Should meet the design requirements. 5.1.5 All types of concrete piers in monitoring facilities should adopt cast-in-place reinforced concrete structures, which should be firmly combined with the tested building. The concrete strength grade is not less than C20, and the concrete construction should meet the requirements of "Construction Code for Concrete Structure Engineering" GB 50666 Claim. 5.1.6 The core description of the monitoring hole shall be described when taking the core according to the design requirements or making the TV camera inside the hole. Drilling backfill grouting pressure It should be determined according to the engineering building structure and the bearing capacity of monitoring facilities, and should be backfilled densely. 5.1.7 The burying of monitoring instruments in the concrete should be carried out simultaneously with the concrete pouring, and the concrete should be placed away from the monitoring instruments Above 150cm, coarse aggregate larger than 40mm should be removed from the vicinity of the monitoring instrument, and then manually backfilled and vibrated or compacted. 5.1.8 After the monitoring instrument is buried in the normal concrete, the vibrating rod of the vibrator should be far away from the monitoring instrument during construction of the surrounding concrete The concrete should be artificially vibrated and compacted if it is more than 100cm away from the monitoring instrument and within 100cm of the monitoring instrument. Guard personnel can leave only 60cm from the top of the instrument. 5.1.9 The installation and embedment of monitoring instruments in RCC can adopt the post-embedding methods such as reserved pits and digging pits. If necessary, the monitoring can be monitored. The measuring instrument should be reinforced and reconstructed. After the instrument is installed, it should be backfilled with the same concrete as the surroundings, and the coarse aggregate should be removed. Backfill in layers and compact manually, and the guards can leave after the concrete is filled 60cm above the top of the instrument. 5.1.10 The free status data of the monitoring instrument should be read and recorded before the on-site installation; the status of the monitoring instrument should be checked during the installation process. The situation, location and direction should be dealt with in time if problems are found, and the image data of the installation and burying should be retained for important concealed projects; Relevant data should be measured and recorded after installation and burial. 5.1.11 Safety signs should be set up during the installation of monitoring facilities, and personnel should be sent to observe the cross-operations and the surrounding safety hidden Suffer. Marks should be set up after burial, and measures should be taken to protect monitoring facilities when necessary. 5.1.12 The drilling and grouting construction in the area where the monitoring facility is installed and buried shall be reviewed by the construction unit of the monitoring system. The slurry construction should keep a safe distance from the monitoring instruments and monitoring cables. 5.1.13 After the monitoring facilities are installed and buried, the installation and burying diagram and the monitoring cable routing diagram shall be drawn in time, and the Complete monitoring data compilation procedures "DL/T 5209 related requirements to fill in the basic data sheet. 5.2 Environmental monitoring facilities 5.2.1 The installation and burying of vertical water gauge, float water level gauge, ultrasonic water level gauge, and pressure sensor water level gauge shall meet the requirements The following requirements. Other water level monitoring facilities are installed and buried in accordance with the "Water Level Observation Standard" GB/T 50138. 1 The installation of the vertical water gauge shall meet the following requirements. 1) Before installing the water gauge, the installation base surface should be leveled so that the base surface is perpendicular to the horizontal plane. 2) The installation height of the water gauge should be determined by measuring and setting out, and its allowable deviation is ±10mm. 3) The installation base surface of the enamel water gauge and the stainless steel water gauge should be polished and smooth, and stainless steel bolts and epoxy resin should be used for bonding. The joint fixing method of the connection. 4) The base surface for drawing the water gauge should be polished, cleaned, and then cleaned with acetone. Antioxidant paint and ring should be used. The base liquid is brushed or sprayed with a standard template. 2 The installation of the float type water level gauge shall meet the following requirements. 1) The logging (pipe) should be installed vertically and firmly, and the distance between the float and counterweight and the wall of the well (pipe) shall not be less than 75mm, The water inlet at the bottom should be lower than the design minimum water level. 2) Assemble the float, wire rope, counterweight, sensor or code plate and water level gauge installation platform firmly to make the float The center of the sub and counterweight is located at the center of the logging (pipe) hole and is fixed. The level of the water level gauge installation platform allows The deviation is ±0.5°, and the allowable elevation deviation is ±10mm. 3) The water level gauge signal transmission cable should be protected by steel pipe. 4) After the water level gauge is installed, the accuracy of its reading should be tested manually, and the wire rope should be manually pulled at 20cm/min~ The speed of 40cm/min drives the sensor to work. Within the expected maximum amplitude range of the water level, the wire rope manually The allowable deviation between the pulling length and the actual reading of the water level gauge is ±20mm. 3 The installation of ultrasonic water level gauge shall meet the following requirements. 1) Install the bracket first. The column of the bracket should be vertical, and the suspension rod for fixing the ultrasonic sensor should be horizontal. The degree L should meet the requirements of the opening angle of the ultrasonic sensor and is calculated according to formula 5.2.1.The height of the suspension rod The sensor installation technology requires that the distance between the sensor probe and the water surface should be within the effective measurement range. 2) Assemble and fix the ultrasonic sensor, temperature sensor and related accessories firmly, and install the ultrasonic sensor on The foremost end of the suspension rod should be in a horizontal state. There should be no other objects in the range of the opening angle below it. The temperature sensor at 30cm~40cm behind the acoustic wave sensor should be installed horizontally. 3) The signal transmission cables of the ultrasonic sensor and temperature sensor should be protected by steel pipe. On-site and indoor should be It is required to install a signal arrester. 4) Measure the initial value of the ultrasonic water level gauge after on-site installation and compare it with the water gauge reading or other water level monitoring data, The allowable deviation should not exceed ±30mm. 4 The installation of pressure sensor type water level gauge shall meet the following requirements. 1) The water level in the logging (pipe) and the reservoir water level should be connected smoothly and change synchronously. 2) The sensor should be immersed in clean water before installation to make it saturated. 3) The sensor installation should be stable, and the movable water level gauge should be hoisted and fixed with stainless steel wire rope when installing. 4) When the installation depth is less than or equal to 70m, the allowable deviation of the installation elevation is ±5mm; the installation depth is greater than At 70m, the allowable deviation of the installation elevation is ±10mm. 5.2.2 The installation and laying of water temperature monitoring facilities shall meet the following requirements. 1 The reservoir water thermometer embedded in the concrete should make the axis of the thermometer parallel to the surface of the concrete facing the water, and clamps can be used Install and fix on the template, and the thermometer cable traction line should be water-stopped. 2 The thermometer directly installed in the water can be hoisted by stainless steel cable or fixed on the surface of the building. Hoisting At this time, the thermometer should be fixed on the steel cable, the lower end of the steel cable should be equipped with heavy enough mass and sit on the river bed, and the upper end of the steel cable should be fixed. Set and tighten, the heavy block and the suspension end of the steel cable should be treated with rust prevention. 3 The allowable deviation of the spatial position of the thermometer is ±50mm. 4 The waterproof and sealing performance of the thermometer and its cables should meet the water pressure resistance requirements. If necessary, the thermometer and its cables should be Line protection. 5.2.3 The installation of temperature and pressure monitoring facilities shall meet the following requirements. 1 The temperature monitoring thermometer should be suspended and installed in a dedicated louver box, which should be installed in an open area above the ground. On a 125cm bracket, the door of the box faces north. The shutter box and its support should be installed firmly, and the part of the support buried in the ground should be painted Antiseptic oil. 2 The barometer should not be installed next to the heat source, direct sunlight and direct wind should be avoided. 5.2.4 The installation of precipitation monitoring facilities shall meet the following requirements. 1 The installation base of the rain gauge should be flat and stable, and the stainless steel anchor bolts should be used to connect the rain gauge and the base firmly. It can ensure that the instrument will not shake or tilt in a storm. 2 There should be no obstacles around and on the rain gauge, and the height from the water receiving port to the ground should be 70cm, which is preferable in the north. 120cm. 3 The installation base surface and the water receiving port of the rain gauge should be level, and the allowable deviation of levelness is ±1.0°. 4 After installation, a debugging test should be carried out to ensure that the instrument is in normal working condition. 5.2.5 The installation and laying of ice pressure and ice temperature monitoring facilities shall meet the following requirements. 1 The pressure surface of the pressure sensor should be parallel to the dam axis and perpendicular to the ice surface. 2 The temperature sensor and pressure sensor are installed at the same elevation and parallel to the ice surface. Both pressure sensor and temperature sensor are installed It should be fixed firmly, and the monitoring cable should be protected by steel pipe. 5.3 Deformation monitoring facilities 5.3.1 The deformation monitoring control network and the observation pier (standard) structure for s......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of DL/T 5784-2019_English be delivered?Answer: Upon your order, we will start to translate DL/T 5784-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 5 ~ 8 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of DL/T 5784-2019_English with my colleagues?Answer: Yes. The purchased PDF of DL/T 5784-2019_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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