nyenaceyg
Dołączył: 13 Gru 2010
Posty: 522
Przeczytał: 0 tematów
Ostrzeżeń: 0/5
Skąd: England
|
 Wysłany: Śro 13:04, 05 Sty 2011 Temat postu: Construction of Pumped Storage Power Station _5162 |
 |
|
Construction Tianhuangping Pumped Storage Power Station
More than 300 m thick upper part of the mountain covered. Main plant long 200,7 m, width of 21.0m, high 47.53m, with new types of crane beam. Hole in the main plant transformer downstream parallel to the main plant layout,[link widoczny dla zalogowanych], length 180.9m, width 18.0m, high 24.93ITI. Also consider the requirements of underground caverns in the bottom of the main plant with an heir long l618i71 Gravity drainage heir. 1. s Switching Station 500kV switching station outside the main plant and the layout of the main changes in the hole at the top of the ground, switching station platform, still furnished with power station control building and 35kV switching station diesel generator room is very steep slope after the completion, and the shallow Longitudinal joint development of rock, very broken, to ensure that switching station buildings, equipment,[link widoczny dla zalogowanych], operational safety, set a multi-channel retaining wall and the slope in the 500m elevation using the following anchor, anchor and hanging net concrete support. 2 Project Overview 2.1 Construction Management System and sub-standard conditions Tianhuangping Pumped Storage Power Station Project owners responsibility to facilitate the implementation,[link widoczny dla zalogowanych], construction supervision and tendering contract system benefits. Engineering units for the East China Investigation and Design Institute. Construction system is; Board commissioned the East China Electric Power Group Corporation on behalf of the owners, under the Tianhuangping Pumped Storage Power Station Construction Company for the construction management unit. The project consists of the reservoir Watian, impervious layer of asphalt concrete on the library, under excavation and filling of the reservoir area, upstream water system civil works, mechanical and electrical installation standard five main project. 2.2 The progress of the project Tianhuangping project in l992 on June 18 road starts inside, l994 on March 1 began excavation of the main plant, the upper and lower reservoirs, respectively, in October 6th, 1997 and 1998 2 10 day storage. Building 1, the upstream water supply system completed by the end of September 1997 to complete construction in December 31El sufficient drainage test. Lord, Vice-plant, main transformer and the tail gate openings excavated hole in December 1995 3o days to complete. January 29, 1996 1 Tube Elbow crane into the machine pit. May 31, 1998, 1 machine for the first time start, full access to dynamic debugging. Construction methods and experience 2.3 23.1 shaft conveyance system upstream of the main shaft of the construction of two long-700m, angle of 58. . Excavation diameter of 84m, 7m in diameter after lining to speed up the construction progress and adapt to mechanical properties of construction, construction layout of r1 in the middle section inclined adit construction and set aside rock plug, the inclined part of it in two, from top to bottom while digging. After digging wells for the pilot program expanded to dig. Pilot Shaft _r advanced by Mark Climber Ali. Commitment to a Bureau of hydro excavation, creating a Inclined Shaft excavation footage 127m on expansion of the national records and dug 85m on a good performance footage. First use of water-fourth inclined sliding design and manufacture of sliding device Bureau, created the Japanese footage 12.08m, a national monthly cumulative record footage 23lm. 2.3.2 The main and auxiliary plant underground powerhouse excavation depth Tianhuangping large scale, the excavation is the critical path of construction, while the plant within the new type of crane beam, excavation forming for high , and in a wider range of joint-intensive band, a certain difficulty of construction. To this end, the design and construction of hydropower units together fourteen Bureau, well-designed, careful construction. Excavation is divided into 6 layers,[link widoczny dla zalogowanych], around the use of light burst, pre-split and remain protective layer, the successful completion of the excavation, and successfully solve the geological problems of construction is to create the first layer of large section 168.8m. Excavation footage 75.4m on the national record. Located upstream and downstream side wall of rock joints with beams due to intensive use of rational design and support measures, load test deflection close to zero. 2.3.3 Construction of the upper reservoir dam reservoir Watian all the dam, due to local soil moisture all weathered very high, to the dam filling compaction difficult. To solve this problem, speed up the construction schedule, take the construction of five hydropower units and design of repeated studies, decided to increase the gravel layer of filling between layers, to speed up filling soil drainage, in order to facilitate compaction to meet the design requirements specified . Meanwhile, in fine weather to make full use of existing machinery and equipment day and night, the quality and quantity of the construction schedule to complete the task. 2.3.4 on the asphalt concrete impervious surface cover database project May 18, 1996, the library began to asphalt concrete paving, August 12, 1997 to complete all construction tasks,[link widoczny dla zalogowanych], the actual number of days for the 179d, to complete asphalt concrete stalls Shop 288 000 m (5.7 万 m), maximum daily paving 7220m (604m.). The whole reservoir basin, bank seepage with asphalt concrete the first case in the country, although the construction by foreign contractors, but the design, construction units to learn construction techniques, the accumulation of experience in construction, promotion of such seepage control project in the form, no doubt greatly benefit.
Post został pochwalony 0 razy
|
|
